UNITED STATES

                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549

                                   FORM N-CSR

                        CERTIFIED SHAREHOLDER REPORT OF
                   REGISTERED MANAGEMENT INVESTMENT COMPANIES

                  Investment Company Act file number 811-4096
- -------------------------------------------------------------------------------

                           MFS MUNICIPAL SERIES TRUST
- -------------------------------------------------------------------------------
               (Exact name of registrant as specified in charter)

                500 Boylston Street, Boston, Massachusetts 02116
- -------------------------------------------------------------------------------
              (Address of principal executive offices) (Zip code)

                                Susan S. Newton
                    Massachusetts Financial Services Company
                              500 Boylston Street
                          Boston, Massachusetts 02116
- -------------------------------------------------------------------------------
                    (Name and address of agents for service)

       Registrant's telephone number, including area code: (617) 954-5000
- -------------------------------------------------------------------------------

                       Date of fiscal year end: March 31
- -------------------------------------------------------------------------------

                    Date of reporting period: March 31, 2006
- -------------------------------------------------------------------------------


ITEM 1. REPORTS TO STOCKHOLDERS.

MFS(R) MUNICIPAL SERIES TRUST                                           3/31/06

FOR THE STATES OF: ALABAMA,
ARKANSAS, CALIFORNIA, FLORIDA,
GEORGIA, MARYLAND, MASSACHUSETTS

ANNUAL REPORT
- -------------------------------------------------------------------------------

LETTER FROM THE CEO                                 1
- -----------------------------------------------------
PORTFOLIO COMPOSITION                               2
- -----------------------------------------------------
MANAGEMENT REVIEW                                   5
- -----------------------------------------------------
PERFORMANCE SUMMARY                                 6
- -----------------------------------------------------
FUND EXPENSE TABLES                                13
- -----------------------------------------------------
PORTFOLIO OF INVESTMENTS                           16
- -----------------------------------------------------
FINANCIAL STATEMENTS                               52
- -----------------------------------------------------
NOTES TO FINANCIAL STATEMENTS                      70
- -----------------------------------------------------
REPORT OF INDEPENDENT REGISTERED
PUBLIC ACCOUNTING FIRM                             78
- -----------------------------------------------------
TRUSTEES AND OFFICERS                              79
- -----------------------------------------------------
BOARD REVIEW OF INVESTMENT
ADVISORY AGREEMENT                                 81
- -----------------------------------------------------
PROXY VOTING POLICIES AND INFORMATION              81
- -----------------------------------------------------
QUARTERLY PORTFOLIO DISCLOSURE                     81
- -----------------------------------------------------
FEDERAL TAX INFORMATION                            81
- -----------------------------------------------------
CONTACT INFORMATION                        BACK COVER
- -----------------------------------------------------

THIS REPORT HAS BEEN PREPARED FOR THE GENERAL
INFORMATION OF SHAREHOLDERS. IT IS
AUTHORIZED FOR DISTRIBUTION TO PROSPECTIVE
INVESTORS ONLY WHEN PRECEDED OR
ACCOMPANIED BY A CURRENT PROSPECTUS.
                                                       M F S(SM)
                                                       INVESTMENT MANAGEMENT(R)


LETTER FROM THE CEO

[Photo of Robert J. Manning]

Dear Shareholders,
It has been said that change is the only constant in life. As investors have
seen, that theme is still accurate today as we recently have experienced
shifting economic cycles because of natural disasters and political
instability around the globe.

Markets worldwide have fluctuated in the past year as devastating hurricanes
had a dramatic effect on the international economy, particularly on oil
prices. We witnessed political unrest in the Middle East, highlighted by
instability in Iraq, and in Africa, the usually stable Nigeria also
experienced violence. As a result, energy prices have bounced up and down,
with crude oil prices at one point topping a record $70 per barrel.

Such cycles are not uncommon and in fact have almost become the norm in our
everyday lives. What does all of this mean to you as an investor? In times like
these, it helps to know that you're working with a seasoned investment
professional who has experience to guide you through difficult times. At
MFS(R), we believe our investment management team has the knowledge and
confidence to navigate through difficult cycles and at the same time see
through adversity to find investment opportunities for our clients and
shareholders.

Our investment management process, honed over 80 years, combines a unique
concept of teamwork with our unwavering focus on the long term. We firmly
believe that the best way to realize long-term financial goals - be it a
college education, a comfortable retirement, or a secure family legacy - is to
follow a three-pronged approach that focuses on longer time horizons. Allocate
holdings across the major asset classes - including stocks, bonds, and cash.
Diversify within each class to take advantage of different market segments and
investing styles. Rebalance assets regularly to maintain a desired asset
allocation. Of course, these strategies cannot guarantee a profit or protect
against a loss. This long-term approach requires diligence and patience, two
traits that in our experience are essential to capitalizing on the many
opportunities the financial markets can offer - through both up and down
economic cycles.

    Respectfully,

/s/ Robert J. Manning

    Robert J. Manning
    Chief Executive Officer and Chief Investment Officer
    MFS Investment Management(R)

    May 15, 2006

The opinions expressed in this letter are those of MFS, and no forecasts can
be guaranteed.


PORTFOLIO COMPOSITION

MFS(R) Alabama Municipal Bond Fund

              PORTFOLIO STRUCTURE (i)

              Bonds                                         98.6%
              Cash & Other Net Assets                        1.4%

              TOP FIVE BOND INDUSTRIES (i)

              Water/Sewer                                   17.1%
              ---------------------------------------------------
              Health/Hospitals14.6%
              ---------------------------------------------------
              General Obligations/General Purpose           14.3%
              ---------------------------------------------------
              Municipal-Owned Utilities                     10.1%
              ---------------------------------------------------
              Universities/Colleges                          8.2%
              ---------------------------------------------------

              CREDIT QUALITY OF BONDS (r)

              AAA                                           70.0%
              ---------------------------------------------------
              AA                                            13.3%
              ---------------------------------------------------
              A                                              5.7%
              ---------------------------------------------------
              BBB                                            7.9%
              ---------------------------------------------------
              B                                              0.2%
              ---------------------------------------------------
              Not Rated                                      2.9%
              ---------------------------------------------------

              PORTFOLIO FACTS

              Average Duration (d)                            5.6
              ---------------------------------------------------
              Average Life (m)                          14.4 yrs.
              ---------------------------------------------------
              Average Maturity (m)                      16.6 yrs.
              ---------------------------------------------------
              Average Credit Quality of Rated
              Securities (a)                                  AA+
              ---------------------------------------------------
              Average Short Term Credit Quality               A-1
              ---------------------------------------------------

MFS(R) Arkansas Municipal Bond Fund

              PORTFOLIO STRUCTURE (i)

              Bonds                                         98.8%
              Cash & Other Net Assets                        1.2%

             TOP FIVE BOND INDUSTRIES (i)

              Universities/Colleges                         16.8%
              ---------------------------------------------------
              Water/Sewer                                   11.4%
              ---------------------------------------------------
              Health/Hospitals                              10.5%
              ---------------------------------------------------
              Single Family Housing/State                    9.2%
              ---------------------------------------------------
              General Obligations/General Purpose            8.2%
              ---------------------------------------------------

              CREDIT QUALITY OF BONDS (r)

              AAA                                           68.4%
              ---------------------------------------------------
              AA                                            10.4%
              ---------------------------------------------------
              A                                             11.6%
              ---------------------------------------------------
              BBB                                            8.3%
              ---------------------------------------------------
              BB                                             0.9%
              ---------------------------------------------------
              Not Rated                                      0.4%
              ---------------------------------------------------

              PORTFOLIO FACTS

              Average Duration (d)                            6.5
              ---------------------------------------------------
              Average Life (m)                          15.6 yrs.
              ---------------------------------------------------
              Average Maturity (m)                      16.6 yrs.
              ---------------------------------------------------
              Average Credit Quality of Rated
              Securities (a)                                   AA
              ---------------------------------------------------
              Average Short Term Credit Quality               A-1
              ---------------------------------------------------

MFS(R) California Municipal Bond Fund

              PORTFOLIO STRUCTURE (i)

              Bonds                                         98.7%
              Cash & Other Net Assets                        1.3%

              TOP FIVE BOND INDUSTRIES (i)

              General Obligations/Schools                   15.6%
              ---------------------------------------------------
              State Agency                                  13.7%
              ---------------------------------------------------
              Health/Hospitals                              11.1%
              ---------------------------------------------------
              General Obligations/General Purpose            7.9%
              ---------------------------------------------------
              Tax/Assessment                                 7.4%
              ---------------------------------------------------

              CREDIT QUALITY OF BONDS (r)

              AAA                                           53.1%
              ---------------------------------------------------
              AA                                             3.2%
              ---------------------------------------------------
              A                                             18.4%
              ---------------------------------------------------
              BBB                                           16.8%
              ---------------------------------------------------
              BB                                             0.6%
              ---------------------------------------------------
              B                                              0.2%
              ---------------------------------------------------
              CCC                                            0.6%
              ---------------------------------------------------
              Not Rated                                      7.1%
              ---------------------------------------------------

              PORTFOLIO FACTS

              Average Duration (d)                            6.6
              ---------------------------------------------------
              Average Life (m)                          14.9 yrs.
              ---------------------------------------------------
              Average Maturity (m)                      17.5 yrs.
              ---------------------------------------------------
              Average Credit Quality of Rated
              Securities (a)                                  AA-
              ---------------------------------------------------
              Average Short Term Credit Quality               A-1
              ---------------------------------------------------

MFS(R) Florida Municipal Bond Fund

              PORTFOLIO STRUCTURE (i)

              Bonds                                         98.5%
              Cash & Other Net Assets                        1.5%

              TOP FIVE BOND INDUSTRIES (i)

              Health/Hospitals                              17.3%
              ---------------------------------------------------
              Water/Sewer                                   15.6%
              ---------------------------------------------------
              General Obligations/Schools                    9.5%
              ---------------------------------------------------
              General Obligations/General Purpose            7.0%
              ---------------------------------------------------
              Airport                                        5.2%
              ---------------------------------------------------

              CREDIT QUALITY OF BONDS (r)

              AAA                                           60.2%
              ---------------------------------------------------
              AA                                            10.9%
              ---------------------------------------------------
              A                                              8.7%
              ---------------------------------------------------
              BBB                                           10.5%
              ---------------------------------------------------
              BB                                             0.7%
              ---------------------------------------------------
              B                                              0.3%
              ---------------------------------------------------
              Not Rated                                      8.7%
              ---------------------------------------------------

              PORTFOLIO FACTS

              Average Duration (d)                            6.9
              ---------------------------------------------------
              Average Life (m)                          17.3 yrs.
              ---------------------------------------------------
              Average Maturity (m)                      18.6 yrs.
              ---------------------------------------------------
              Average Credit Quality of Rated
              Securities (a)                                   AA
              ---------------------------------------------------
              Average Short Term Credit Quality               A-1
              ---------------------------------------------------

MFS(R) Georgia Municipal Bond Fund

              PORTFOLIO STRUCTURE (i)

              Bonds                                         99.6%
              Cash & Other Net Assets                        0.4%

              TOP FIVE BOND INDUSTRIES (i)

              Water/Sewer                                   25.8%
              ---------------------------------------------------
              Universities/Colleges                         10.0%
              ---------------------------------------------------
              Health/Hospitals                               9.3%
              ---------------------------------------------------
              General Obligations/Schools                    7.7%
              ---------------------------------------------------
              Municipal-Owned Utilities                      5.9%
              ---------------------------------------------------

              CREDIT QUALITY OF BONDS (r)

              AAA                                           44.9%
              ---------------------------------------------------
              AA                                            31.4%
              ---------------------------------------------------
              A                                              9.3%
              ---------------------------------------------------
              BBB                                            9.9%
              ---------------------------------------------------
              B                                              0.8%
              ---------------------------------------------------
              Not Rated                                      3.7%
              ---------------------------------------------------

              PORTFOLIO FACTS

              Average Duration (d)                            6.5
              ---------------------------------------------------
              Average Life (m)                          15.2 yrs.
              ---------------------------------------------------
              Average Maturity (m)                      16.8 yrs.
              ---------------------------------------------------
              Average Credit Quality of Rated
              Securities (a)                                   AA
              ---------------------------------------------------
              Average Short Term Credit Quality               A-1
              ---------------------------------------------------

MFS(R) Maryland Municipal Bond Fund

              PORTFOLIO STRUCTURE (i)

              Bonds                                         97.7%
              Cash & Other Net Assets                        2.3%

              TOP FIVE BOND INDUSTRIES (i)

              Health/Hospitals                              20.2%
              ---------------------------------------------------
              Universities/Colleges                         14.3%
              ---------------------------------------------------
              General Obligations/Improvement               14.2%
              ---------------------------------------------------
              Water/Sewer                                    5.5%
              ---------------------------------------------------
              State Agency                                   4.5%
              ---------------------------------------------------

              CREDIT QUALITY OF BONDS (r)

              AAA                                           46.7%
              ---------------------------------------------------
              AA                                            15.2%
              ---------------------------------------------------
              A                                             18.9%
              ---------------------------------------------------
              BBB                                           12.2%
              ---------------------------------------------------
              BB                                             0.3%
              ---------------------------------------------------
              B                                              0.3%
              ---------------------------------------------------
              Not Rated                                      6.4%
              ---------------------------------------------------

              PORTFOLIO FACTS

              Average Duration (d)                            6.1
              ---------------------------------------------------
              Average Life (m)                          14.7 yrs.
              ---------------------------------------------------
              Average Maturity (m)                      16.2 yrs.
              ---------------------------------------------------
              Average Credit Quality of Rated
              Securities (a)                                   AA
              ---------------------------------------------------
              Average Short Term Credit Quality               A-1
              ---------------------------------------------------

MFS(R) Massachusetts Municipal Bond Fund

              PORTFOLIO STRUCTURE (i)

              Bonds                                         99.1%
              Cash & Other Net Assets                        0.9%

              TOP FIVE BOND INDUSTRIES (i)

              Universities/Colleges                         20.2%
              ---------------------------------------------------
              General Obligations/General Purpose           13.6%
              ---------------------------------------------------
              Health/Hospitals                              11.1%
              ---------------------------------------------------
              Water/Sewer                                    6.4%
              ---------------------------------------------------
              General Obligations/Improvement                5.4%
              ---------------------------------------------------

              CREDIT QUALITY OF BONDS (r)

              AAA                                           49.1%
              ---------------------------------------------------
              AA                                            26.6%
              ---------------------------------------------------
              A                                              7.8%
              ---------------------------------------------------
              BBB                                           13.2%
              ---------------------------------------------------
              BB                                             1.0%
              ---------------------------------------------------
              Not Rated                                      2.3%
              ---------------------------------------------------

              PORTFOLIO FACTS

              Average Duration (d)                            6.4
              ---------------------------------------------------
              Average Life (m)                          15.3 yrs.
              ---------------------------------------------------
              Average Maturity (m)                      17.9 yrs.
              ---------------------------------------------------
              Average Credit Quality of Rated
              Securities (a)                                   AA
              ---------------------------------------------------
              Average Short Term Credit Quality               A-1
              ---------------------------------------------------

(a) The average credit quality of rated securities is based upon a market
    weighted average of portfolio holdings that are rated by public rating
    agencies.
(d) Duration is a measure of how much a bond's price is likely to fluctuate with
    general changes in interest rates, e.g., if rates rise 1.00%, a bond with a
    5-year duration is likely to lose about 5.00% of its value.
(i) For purposes of this graphical presentation, the bond component includes
    both accrued interest amounts and the equivalent expo sure from any
    derivative holdings, if applicable.
(m) The average maturity shown is calculated using the final stated maturity on
    the portfolio's holdings without taking into account any holdings which have
    been pre-refunded to an earlier date or which have a mandatory put date
    prior to the stated maturity. The average life shown takes into account
    these earlier dates.
(r) Each security is assigned a rating from Moody's Investors Service. If not
    rated by Moody's, the rating will be that assigned b y Standard & Poor's.
    Likewise, if not assigned a rating by Standard & Poor's, it will be based on
    the rating assigned by Fitch, Inc. For th ose portfolios that hold a
    security which is not rated by any of the three agencies, the security is
    considered Not Rated. Holding s in U.S. Treasuries and government agency
    mortgage-backed securities, if any, are included in the "AAA"-rating
    category. Percentages ar e based on the total market value of investments as
    of 3/31/06.

Percentages are based on net assets as of 3/31/06, unless otherwise noted.

The portfolios are actively managed, and current holdings may be different.


MANAGEMENT REVIEW

FACTORS THAT AFFECTED PERFORMANCE

During the period, our duration(d) positioning relative to our benchmark, the
Lehman Brothers Municipal Bond Index (Lehman Index), had a neutral effect on
relative performance for all funds, except the Alabama fund, for which the
effect was positive.

Yield curve(y) positioning in all of the funds was a strong contributor to
relative performance, excluding the Alabama fund, where the effect was negative.
Compared to the benchmark, all of the funds, excluding the Alabama and Georgia
funds, were more heavily weighted in bonds on the long end of the yield curve
(represented by bonds with durations of 11- to 25-years). This helped relative
results during the period because long-term municipal bonds increased in price
as their yields flattened. The Georgia fund was underweighted in bonds on the
short end of the curve (represented by bonds with durations of 0- to 4-years).
This positioning helped relative returns as bonds on the short-end of the curve
suffered price declines as their yields increased. For the Alabama fund,
positioning along the middle part of the yield curve (represented by bonds with
durations of 8- to 11-years) hurt relative performance.

Credit quality had a neutral effect on relative results for all funds,
excluding the California, Florida, and Maryland funds, for which the effect
was positive. These three funds benefited from holding lower-quality "BBB"-
rated(s) securities and below-investment-grade debt. During the period,
spreads in these credit sectors narrowed due to strong demands for higher-
yielding securities, causing prices on these securities to appreciate. (The
Lehman Index is composed primarily of higher-grade securities with no bonds
rated lower than "BBB").

Overall, sector allocation had a positive effect on relative performance for
all funds, excluding the Arkansas, Alabama, Georgia and Massachusetts funds,
where the effect was neutral. Notable positive contributions to sector
allocation came from our overweighted position in the housing sector in the
Arkansas fund. In the Florida and California funds, the health care sector
boosted relative results. On the negative side, security selection in the
credit enhanced sector was an area of weakness in many of the funds.
Underweighting the strong-performing tobacco sector also hurt relative results
for all funds, except the California fund, where our relative positioning in
the sector helped.

Respectfully,

Michael Dawson
Portfolio Manager

(d) Duration is a measure of how much a bond's price is likely to fluctuate
    with general changes in interest rates, e.g., if rates rise 1.00%, a bond
    with a 5-year duration is likely to lose about 5.00% of its value.
(s) Bonds rated by S&P as "BBB" or higher are considered investment grade;
    bonds rated "BB" or lower are considered non-investment grade.
(y) A yield curve graphically depicts the yields of different maturity bonds
    of the same credit quality and type. A normal yield curve is upward
    sloping, with short-term rates lower than long-term rates.

The views expressed in this report are those of the portfolio manager only
through the end of the period of the report as stated on the cover and do not
necessarily reflect the views of MFS or any other person in the MFS
organization. These views are subject to change at any time based on market
and other conditions, and MFS disclaims any responsibility to update such
views. These views may not be relied upon as investment advice or an
indication of trading intent on behalf of any MFS portfolio. References to
specific securities are not recommendations of such securities, and may not be
representative of any MFS portfolio's current or future investments.


PERFORMANCE SUMMARY THROUGH 3/31/06

The following information illustrates the historical performance of each
fund's original share class in comparison to various market indicators.
Performance results include the deduction of the maximum applicable sales
charge and reflect the percentage change in net asset value, including
reinvestment of dividends and capital gains distributions. Each fund's results
have been compared to the average relevant state municipal debt fund tracked
by Lipper Inc., an independent firm that reports mutual fund performance. For
those states where Lipper does not track state specific fund performance, we
have provided the average "other state" municipal debt fund returns. Each
fund's results have also been compared to the Lehman Brothers Municipal Bond
Index, a market-value-weighted index representative of the tax-exempt bond
market. However, while this index is considered the benchmark for the
performance of municipal bond funds, it is comprised of municipal bonds issued
nationwide, while each of the funds is limited to investing in the bonds of a
particular state. The performance of other share classes will be greater than
or less than that of the class depicted below. Benchmark comparisons are
unmanaged; do not reflect sales charges, commissions or expenses; and cannot
be invested in directly. (See Notes to Performance Summary.) It is not
possible to invest directly in an index.

PERFORMANCE DATA SHOWN REPRESENTS PAST PERFORMANCE AND IS NO GUARANTEE OF
FUTURE RESULTS. INVESTMENT RETURN AND PRINCIPAL VALUE FLUCTUATE SO YOUR
SHARES, WHEN SOLD, MAY BE WORTH MORE OR LESS THAN THE ORIGINAL COST; CURRENT
PERFORMANCE MAY BE LOWER OR HIGHER THAN QUOTED. FOR MOST RECENT MONTH-END
PERFORMANCE, PLEASE VISIT MFS.COM. THE PERFORMANCE SHOWN DOES NOT REFLECT THE
DEDUCTION OF TAXES, IF ANY, THAT A SHAREHOLDER WOULD PAY ON FUND DISTRIBUTIONS
OR THE REDEMPTION OF FUND SHARES.

GROWTH OF A HYPOTHETICAL $10,000 INVESTMENT
(FOR THE 10-YEAR PERIOD ENDED 3/31/06)

                                                Lehman
                            MFS Alabama        Brothers
                          Municipal Bond    Municipal Bond
                           Fund-Class A          Index

              3/96            $ 9,525           $10,000
              3/97             10,081            10,547
              3/98             11,062            11,677
              3/99             11,618            12,400
              3/00             11,523            12,390
              3/01             12,790            13,744
              3/02             13,181            14,261
              3/03             14,508            15,671
              3/04             15,248            16,590
              3/05             15,614            17,032
              3/06             16,078            17,682

MFS(R) ALABAMA MUNICIPAL BOND FUND
TOTAL RETURNS THROUGH 3/31/06

AVERAGE ANNUAL WITHOUT SALES CHARGE

  Share class    Class inception date                1-yr      5-yr      10-yr
- ------------------------------------------------------------------------------
       A               2/01/90                       2.97%     4.68%     5.37%
- ------------------------------------------------------------------------------
       B               9/07/93                       2.20%     3.90%     4.58%
- ------------------------------------------------------------------------------

AVERAGE ANNUAL

Comparative Benchmarks
- ------------------------------------------------------------------------------
Average Alabama municipal debt fund (l)              2.71%     4.46%     4.77%
- ------------------------------------------------------------------------------
Lehman Brothers Municipal Bond Index (f)             3.81%     5.17%     5.86%
- ------------------------------------------------------------------------------

AVERAGE ANNUAL WITH SALES CHARGE

  Share class
- ------------------------------------------------------------------------------
       A                                            -1.92%     3.67%     4.86%
With Initial Sales Charge (4.75%)
- ------------------------------------------------------------------------------
       B                                            -1.74%     3.56%     4.58%
With CDSC (Declining over six years from 4% to 0%)
- ------------------------------------------------------------------------------

CDSC - Contingent Deferred Sales Charge.
(f) Source: FactSet Research Systems, Inc.
(l) Source: Lipper Inc., an independent firm that reports mutual fund
    performance.


GROWTH OF A HYPOTHETICAL $10,000 INVESTMENT
(FOR THE 10-YEAR PERIOD ENDED 3/31/06)

                                                Lehman
                           MFS Arkansas        Brothers
                          Municipal Bond    Municipal Bond
                           Fund-Class A          Index

              3/96            $ 9,525           $10,000
              3/97              9,989            10,547
              3/98             10,994            11,677
              3/99             11,499            12,400
              3/00             11,472            12,390
              3/01             12,671            13,744
              3/02             13,185            14,261
              3/03             14,439            15,671
              3/04             15,092            16,590
              3/05             15,414            17,032
              3/06             15,903            17,682

MFS(R) ARKANSAS MUNICIPAL BOND FUND
TOTAL RETURNS THROUGH 3/31/06

AVERAGE ANNUAL WITHOUT SALES CHARGE

  Share class    Class inception date                1-yr      5-yr      10-yr
- ------------------------------------------------------------------------------
       A               2/03/92                       3.17%     4.65%     5.26%
- ------------------------------------------------------------------------------
       B               9/07/93                       2.39%     3.83%     4.45%
- ------------------------------------------------------------------------------

AVERAGE ANNUAL

Comparative Benchmarks
- ------------------------------------------------------------------------------
Average "other state" municipal debt fund (l)        3.82%     4.88%     5.40%
- ------------------------------------------------------------------------------
Lehman Brothers Municipal Bond Index (f)             3.81%     5.17%     5.86%
- ------------------------------------------------------------------------------

AVERAGE ANNUAL WITH SALES CHARGE

  Share class
- ------------------------------------------------------------------------------
       A                                            -1.73%     3.64%     4.75%
With Initial Sales Charge (4.75%)
- ------------------------------------------------------------------------------
       B                                            -1.56%     3.49%     4.45%
With CDSC (Declining over six years from 4% to 0%)
- ------------------------------------------------------------------------------

CDSC - Contingent Deferred Sales Charge.
(f) Source: FactSet Research Systems, Inc.
(l) Source: Lipper Inc., an independent firm that reports mutual fund
    performance.


GROWTH OF A HYPOTHETICAL $10,000 INVESTMENT
(FOR THE 10-YEAR PERIOD ENDED 3/31/06)

                                                Lehman
                          MFS California       Brothers
                          Municipal Bond    Municipal Bond
                           Fund-Class A          Index

              3/96            $ 9,525           $10,000
              3/97              9,959            10,547
              3/98             11,105            11,677
              3/99             11,836            12,400
              3/00             11,669            12,390
              3/01             12,928            13,744
              3/02             13,329            14,261
              3/03             14,634            15,671
              3/04             15,397            16,590
              3/05             15,881            17,032
              3/06             16,551            17,682

MFS(R) CALIFORNIA MUNICIPAL BOND FUND
TOTAL RETURNS THROUGH 3/31/06

AVERAGE ANNUAL WITHOUT SALES CHARGE

  Share class    Class inception date                1-yr       5-yr     10-yr
- ------------------------------------------------------------------------------
       A               6/18/85                       4.22%     5.07%     5.68%
- ------------------------------------------------------------------------------
       B               9/07/93                       3.44%     4.26%     4.85%
- ------------------------------------------------------------------------------
       C               1/03/94                       3.29%     4.12%     4.72%
- ------------------------------------------------------------------------------

AVERAGE ANNUAL

Comparative Benchmarks
- ------------------------------------------------------------------------------
Average California municipal debt fund (l)           4.47%     4.85%     5.50%
- ------------------------------------------------------------------------------
Lehman Brothers Municipal Bond Index (f)             3.81%     5.17%     5.86%
- ------------------------------------------------------------------------------

AVERAGE ANNUAL WITH SALES CHARGE

  Share class
- ------------------------------------------------------------------------------
       A                                            -0.73%     4.05%     5.17%
With Initial Sales Charge (4.75%)
- ------------------------------------------------------------------------------
       B                                            -0.53%     3.92%     4.85%
With CDSC (Declining over six years from 4% to 0%)
- ------------------------------------------------------------------------------
       C                                             2.30%     4.12%     4.72%
With CDSC (1% for 12 months) (x)
- ------------------------------------------------------------------------------

CDSC - Contingent Deferred Sales Charge.
(f) Source: FactSet Research Systems, Inc.
(l) Source: Lipper Inc., an independent firm that reports mutual fund
    performance.
(x) Assuming redemption within one year from the end of the prior month of
    purchase.


GROWTH OF A HYPOTHETICAL $10,000 INVESTMENT
(FOR THE 10-YEAR PERIOD ENDED 3/31/06)

                                                Lehman
                            MFS Florida        Brothers
                          Municipal Bond    Municipal Bond
                           Fund-Class A          Index

              3/96            $ 9,525           $10,000
              3/97              9,851            10,547
              3/98             10,853            11,677
              3/99             11,423            12,400
              3/00             11,265            12,390
              3/01             12,473            13,744
              3/02             12,912            14,261
              3/03             14,126            15,671
              3/04             14,860            16,590
              3/05             15,342            17,032
              3/06             15,977            17,682

MFS(R) FLORIDA MUNICIPAL BOND FUND
TOTAL RETURNS THROUGH 3/31/06

AVERAGE ANNUAL WITHOUT SALES CHARGE

  Share class    Class inception date                1-yr       5-yr     10-yr
- ------------------------------------------------------------------------------
       A               2/03/92                       4.14%     5.08%     5.31%
- ------------------------------------------------------------------------------
       B               9/07/93                       3.35%     4.25%     4.47%
- ------------------------------------------------------------------------------

AVERAGE ANNUAL

Comparative Benchmarks
- ------------------------------------------------------------------------------
Average Florida municipal debt fund (l)              3.11%     4.28%     5.07%
- ------------------------------------------------------------------------------
Lehman Brothers Municipal Bond Index (f)             3.81%     5.17%     5.86%
- ------------------------------------------------------------------------------

AVERAGE ANNUAL WITH SALES CHARGE

  Share class
- ------------------------------------------------------------------------------
       A                                            -0.81%     4.06%     4.80%
With Initial Sales Charge (4.75%)
- ------------------------------------------------------------------------------
       B                                            -0.64%     3.91%     4.47%
With CDSC (Declining over six years from 4% to 0%)
- ------------------------------------------------------------------------------

CDSC - Contingent Deferred Sales Charge.
(f) Source: FactSet Research Systems, Inc.
(l) Source: Lipper Inc., an independent firm that reports mutual fund
    performance.


GROWTH OF A HYPOTHETICAL $10,000 INVESTMENT
(FOR THE 10-YEAR PERIOD ENDED 3/31/06)

                                                Lehman
                            MFS Georgia        Brothers
                          Municipal Bond    Municipal Bond
                           Fund-Class A          Index

              3/96            $ 9,525           $10,000
              3/97              9,951            10,547
              3/98             11,047            11,677
              3/99             11,589            12,400
              3/00             11,436            12,390
              3/01             12,671            13,744
              3/02             13,055            14,261
              3/03             14,357            15,671
              3/04             15,065            16,590
              3/05             15,407            17,032
              3/06             15,797            17,682

MFS(R) GEORGIA MUNICIPAL BOND FUND
TOTAL RETURNS THROUGH 3/31/06

AVERAGE ANNUAL WITHOUT SALES CHARGE

  Share class    Class inception date                1-yr       5-yr     10-yr
- ------------------------------------------------------------------------------
       A               6/06/88                       2.53%     4.51%     5.19%
- ------------------------------------------------------------------------------
       B               9/07/93                       2.05%     3.78%     4.44%
- ------------------------------------------------------------------------------

AVERAGE ANNUAL

Comparative Benchmarks
- ------------------------------------------------------------------------------
Average Georgia municipal debt fund (l)              2.92%     4.19%     4.97%
- ------------------------------------------------------------------------------
Lehman Brothers Municipal Bond Index (f)             3.81%     5.17%     5.86%
- ------------------------------------------------------------------------------

AVERAGE ANNUAL WITH SALES CHARGE

  Share class
- ------------------------------------------------------------------------------
       A                                            -2.34%     3.50%     4.68%
With Initial Sales Charge (4.75%)
- ------------------------------------------------------------------------------
       B                                            -1.89%     3.44%     4.44%
With CDSC (Declining over six years from 4% to 0%)
- ------------------------------------------------------------------------------

CDSC - Contingent Deferred Sales Charge.
(f) Source: FactSet Research Systems, Inc.
(l) Source: Lipper Inc., an independent firm that reports mutual fund
    performance.


GROWTH OF A HYPOTHETICAL $10,000 INVESTMENT
(FOR THE 10-YEAR PERIOD ENDED 3/31/06)

                                                Lehman
                           MFS Maryland        Brothers
                          Municipal Bond    Municipal Bond
                           Fund-Class A          Index

              3/96            $ 9,525           $10,000
              3/97              9,882            10,547
              3/98             10,926            11,677
              3/99             11,466            12,400
              3/00             11,320            12,390
              3/01             12,482            13,744
              3/02             12,930            14,261
              3/03             14,121            15,671
              3/04             14,822            16,590
              3/05             15,171            17,032
              3/06             15,634            17,682

MFS(R) MARYLAND MUNICIPAL BOND FUND
TOTAL RETURNS THROUGH 3/31/06

AVERAGE ANNUAL WITHOUT SALES CHARGE


  Share class    Class inception date                1-yr       5-yr     10-yr
- ------------------------------------------------------------------------------
       A              10/31/84                       3.06%     4.61%     5.08%
- ------------------------------------------------------------------------------
       B               9/07/93                       2.30%     3.93%     4.40%
- ------------------------------------------------------------------------------

AVERAGE ANNUAL

Comparative Benchmarks
- ------------------------------------------------------------------------------
Average Maryland municipal debt fund (l)             2.96%     4.17%     4.79%
- ------------------------------------------------------------------------------
Lehman Brothers Municipal Bond Index (f)             3.81%     5.17%     5.86%
- ------------------------------------------------------------------------------

AVERAGE ANNUAL WITH SALES CHARGE

  Share class
- ------------------------------------------------------------------------------
       A                                            -1.84%     3.59%     4.57%
With Initial Sales Charge (4.75%)
- ------------------------------------------------------------------------------
       B                                            -1.62%     3.59%     4.40%
With CDSC (Declining over six years from 4% to 0%)
- ------------------------------------------------------------------------------

CDSC - Contingent Deferred Sales Charge.
(f) Source: FactSet Research Systems, Inc.
(l) Source: Lipper Inc., an independent firm that reports mutual fund
    performance.


GROWTH OF A HYPOTHETICAL $10,000 INVESTMENT
(FOR THE 10-YEAR PERIOD ENDED 3/31/06)

                                                   Lehman
                          MFS Massachusetts       Brothers
                            Municipal Bond     Municipal Bond
                             Fund-Class A           Index

              3/96             $ 9,525             $10,000
              3/97               9,944              10,547
              3/98              10,934              11,677
              3/99              11,494              12,400
              3/00              11,313              12,390
              3/01              12,494              13,744
              3/02              12,860              14,261
              3/03              14,200              15,671
              3/04              14,885              16,590
              3/05              15,278              17,032
              3/06              15,863              17,682

MFS(R) MASSACHUSETTS MUNICIPAL BOND FUND
TOTAL RETURNS THROUGH 3/31/06

AVERAGE ANNUAL WITHOUT SALES CHARGE

  Share class    Class inception date                1-yr       5-yr     10-yr
- ------------------------------------------------------------------------------
       A               4/09/85                       3.83%     4.89%     5.23%
- ------------------------------------------------------------------------------
       B               9/07/93                       3.16%     4.23%     4.55%
- ------------------------------------------------------------------------------

AVERAGE ANNUAL

Comparative Benchmarks
- ------------------------------------------------------------------------------
Average Massachusetts municipal debt fund (l)        3.09%     4.41%     5.00%
- ------------------------------------------------------------------------------
Lehman Brothers Municipal Bond Index (f)             3.81%     5.17%     5.86%
- ------------------------------------------------------------------------------

AVERAGE ANNUAL WITH SALES CHARGE

  Share class

       A                                            -1.10%     3.88%     4.72%
With Initial Sales Charge (4.75%)
- ------------------------------------------------------------------------------
       B                                            -0.81%     3.89%     4.55%
With CDSC (Declining over six years from 4% to 0%)

CDSC - Contingent Deferred Sales Charge.
(f) Source: FactSet Research Systems, Inc.
(l) Source: Lipper Inc., an independent firm that reports mutual fund
    performance.

NOTES TO PERFORMANCE SUMMARY

Performance results reflect any applicable expense subsidies and waivers in
effect during the periods shown. Without such subsidies and waivers the fund's
performance results would be less favorable. Please see the prospectus and
financial statements for complete details.

A portion of income may be subject to state, federal, and/or alternative
minimum tax. Capital gains, if any, are subject to a capital gains tax.

From time to time the funds may receive proceeds from litigation settlements,
without which performance would be lower.


FUND EXPENSE TABLES

FUND EXPENSES BORNE BY THE SHAREHOLDERS DURING THE PERIOD,
OCTOBER 1, 2005, THROUGH MARCH 31, 2006.

As a shareholder of the funds, you incur two types of costs: (1) transaction
costs, including sales charges (loads) on certain purchase or redemption
payments and redemption fees on certain exchanges and redemptions, and (2)
ongoing costs, including management fees; distribution and service (12b-1)
fees; and other fund expenses. This example is intended to help you understand
your ongoing costs (in dollars) of investing in the funds and to compare these
costs with the ongoing costs of investing in other mutual funds.

The example is based on an investment of $1,000 invested at the beginning of the
period and held for the entire period October 1, 2005 through March 31, 2006.

ACTUAL EXPENSES

The first line for each share class in the tables below provides information
about actual account values and actual expenses. You may use the information
in this line, together with the amount you invested, to estimate the expenses
that you paid over the period. Simply divide your account value by $1,000 (for
example, an $8,600 account value divided by $1,000 = 8.6), then multiply the
result by the number in the first line under the heading entitled "Expenses
Paid During Period" to estimate the expenses you paid on your account during
this period.

HYPOTHETICAL EXAMPLE FOR COMPARISON PURPOSES

The second line for each share class in the tables below provides information
about hypothetical account values and hypothetical expenses based on each
fund's actual expense ratio and an assumed rate of return of 5% per year
before expenses, which is not each fund's actual return. The hypothetical
account values and expenses may not be used to estimate the actual ending
account balance or expenses you paid for the period. You may use this
information to compare the ongoing costs of investing in each fund and other
funds. To do so, compare this 5% hypothetical example with the 5% hypothetical
examples that appear in the shareholder reports of the other funds.

Please note that the expenses shown in the tables are meant to highlight your
ongoing costs only and do not reflect any transactional costs, such as sales
charges (loads) or redemption fees. Therefore, the second line for each share
class in the tables is useful in comparing ongoing costs only, and will not
help you determine the relative total costs of owning different funds. In
addition, if these transactional costs were included, your costs would have
been higher.

MFS(R) ALABAMA MUNICIPAL BOND FUND

- -------------------------------------------------------------------------------
                                                                      Expenses
                                                                    Paid During
                           Annualized    Beginning      Ending       Period (p)
                             Expense   Account Value  Account Value  10/01/05-
Share Class                   Ratio       10/01/05       3/31/06      3/31/06
- -------------------------------------------------------------------------------
           Actual             0.87%      $1,000.00      $1,008.60      $4.36
    A      --------------------------------------------------------------------
           Hypothetical (h)   0.87%      $1,000.00      $1,020.59      $4.38
- -------------------------------------------------------------------------------
           Actual             1.62%      $1,000.00      $1,004.90      $8.10
    B      --------------------------------------------------------------------
           Hypothetical (h)   1.62%      $1,000.00      $1,016.85      $8.15
- -------------------------------------------------------------------------------

MFS(R) ARKANSAS MUNICIPAL BOND FUND

- -------------------------------------------------------------------------------
                                                                      Expenses
                                                                    Paid During
                           Annualized    Beginning      Ending       Period (p)
                             Expense   Account Value  Account Value  10/01/05-
Share Class                   Ratio       10/01/05       3/31/06      3/31/06
- -------------------------------------------------------------------------------
           Actual             0.66%      $1,000.00      $1,008.40      $3.30
    A      --------------------------------------------------------------------
           Hypothetical (h)   0.66%      $1,000.00      $1,021.64      $3.33
- -------------------------------------------------------------------------------
           Actual             1.42%      $1,000.00      $1,004.50      $7.10
    B      --------------------------------------------------------------------
           Hypothetical (h)   1.42%      $1,000.00      $1,017.85      $7.14
- -------------------------------------------------------------------------------

MFS(R) CALIFORNIA MUNICIPAL BOND FUND

- -------------------------------------------------------------------------------
                                                                      Expenses
                                                                    Paid During
                           Annualized    Beginning      Ending       Period (p)
                             Expense   Account Value  Account Value  10/01/05-
Share Class                   Ratio       10/01/05       3/31/06      3/31/06
- -------------------------------------------------------------------------------
           Actual             0.63%      $1,000.00      $1,009.40      $3.16
    A      --------------------------------------------------------------------
           Hypothetical (h)   0.63%      $1,000.00      $1,021.79      $3.18
- -------------------------------------------------------------------------------
           Actual             1.38%      $1,000.00      $1,005.60      $6.90
    B      --------------------------------------------------------------------
           Hypothetical (h)   1.38%      $1,000.00      $1,018.05      $6.94
- -------------------------------------------------------------------------------
           Actual             1.53%      $1,000.00      $1,004.90      $7.65
    C      --------------------------------------------------------------------
           Hypotheti cal (h)  1.53%      $1,000.00      $1,017.30      $7.70
- -------------------------------------------------------------------------------

MFS(R) FLORIDA MUNICIPAL BOND FUND

- ------------------------------------------------------------------------------
                                                                      Expenses
                                                                    Paid During
                           Annualized    Beginning      Ending       Period (p)
                             Expense   Account Value  Account Value  10/01/05-
Share Class                   Ratio       10/01/05       3/31/06      3/31/06
- -------------------------------------------------------------------------------
            Actual            0.62%      $1,000.00      $1,012.50      $3.11
    A       --------------------------------------------------------------------
            Hypothetical (h)  0.62%      $1,000.00      $1,021.84      $3.13
- -------------------------------------------------------------------------------
            Actual            1.39%      $1,000.00      $1,008.60      $6.96
    B       -------------------------------------------------------------------
            Hypothetical (h)  1.39%      $1,000.00      $1,018.00      $6.99
- -------------------------------------------------------------------------------

MFS(R) GEORGIA MUNICIPAL BOND FUND

- ------------------------------------------------------------------------------
                                                                      Expenses
                                                                    Paid During
                           Annualized    Beginning      Ending       Period (p)
                             Expense   Account Value  Account Value  10/01/05-
Share Class                   Ratio       10/01/05       3/31/06      3/31/06
- -------------------------------------------------------------------------------
            Actual            0.94%      $1,000.00      $1,003.70      $4.70
    A       -------------------------------------------------------------------
            Hypothetical (h)  0.94%      $1,000.00      $1,020.24      $4.73
- -------------------------------------------------------------------------------
            Actual            1.69%      $1,000.00      $1,002.80      $8.44
    B       -------------------------------------------------------------------
            Hypothetical (h)  1.69%      $1,000.00      $1,016.50      $8.50
- -------------------------------------------------------------------------------

MFS(R) MARYLAND MUNICIPAL BOND FUND

- -------------------------------------------------------------------------------
                                                                      Expenses
                                                                    Paid During
                           Annualized    Beginning      Ending       Period (p)
                             Expense   Account Value  Account Value  10/01/05-
Share Class                   Ratio       10/01/05       3/31/06      3/31/06
- -------------------------------------------------------------------------------
            Actual            0.93%      $1,000.00      $1,008.60      $4.66
    A       -------------------------------------------------------------------
            Hypothetical (h)  0.93%      $1,000.00      $1,020.29      $4.68
- -------------------------------------------------------------------------------
            Actual            1.58%      $1,000.00      $1,004.40      $7.90
    B       -------------------------------------------------------------------
            Hypothetical (h)  1.58%      $1,000.00      $1,017.05      $7.95
- -------------------------------------------------------------------------------

MFS(R) MASSACHUSETTS MUNICIPAL BOND FUND

- -------------------------------------------------------------------------------
                                                                      Expenses
                                                                    Paid During
                           Annualized    Beginning      Ending       Period (p)
                             Expense   Account Value  Account Value  10/01/05-
Share Class                   Ratio       10/01/05       3/31/06      3/31/06
- -------------------------------------------------------------------------------
            Actual            0.90%      $1,000.00      $1,009.70      $4.51
    A       -------------------------------------------------------------------
            Hypothetical (h)  0.90%      $1,000.00      $1,020.44      $4.53
- -------------------------------------------------------------------------------
            Actual            1.55%      $1,000.00      $1,006.50      $7.75
    B       -------------------------------------------------------------------
            Hypothetical (h)  1.55%      $1,000.00      $1,017.20      $7.80
- -------------------------------------------------------------------------------
(h) 5% class return per year before expenses.
(p) Expenses paid is equal to each class' annualized expense ratio, as shown
    above, multiplied by the average account value over the period, multiplied
    by the number of days in the period, divided by the number of days in the
    year. Expenses paid do not include any applicable sales charges (loads) or
    redemption fees. If these transaction costs had been included, your costs
    would have been higher.



PORTFOLIO OF INVESTMENTS - 3/31/06                      MFS(R) ALABAMA MUNICIPAL BOND FUND

The Portfolio of Investments is a complete list of all securities owned by your
fund. It is categorized by broad-based asset classes.


Municipal Bonds - 97.5%
- ---------------------------------------------------------------------------------------------------------------------------------
                             ISSUER                                                                   SHARES/PAR      VALUE ($)
- ---------------------------------------------------------------------------------------------------------------------------------
                                                                                                               
Airport & Port
Revenue - 2.4%               Alabama Docks Department Facilities Rev., MBIA, 5.5%, 2022               $ 1,000,000    $  1,057,970
                             Alabama Port Authority Docks Facility MBIA, 5.25%, 2026                    1,000,000       1,040,060
                                                                                                                     ------------
                                                                                                                     $  2,098,030
- ---------------------------------------------------------------------------------------------------------------------------------
General Obligations -
General Purpose - 14.1%      Athens, AL, Warrants, XLCA, 5%, 2031                                     $   860,000    $    881,414
                             Boaz, AL, School Warrants, "A", XLCA, 5%, 2025                             1,000,000       1,034,730
                             Boaz, AL, School Warrants, "A", XLCA, 5%, 2029                               650,000         670,768
                             Fairfield, AL, Refunding Warrants, AMBAC, 5.25%, 2025                      1,030,000       1,091,543
                             Gadsden, AL, Warrants, "B", AMBAC, 5.125%, 2028                            1,500,000       1,581,420
                             Hoover, AL, "B", 6%, 2010 (c)                                                500,000         544,690
                             Houston County, AL, AMBAC, 6.25%, 2009 (c)                                   750,000         827,190
                             Jefferson County, AL, School Warrants, FSA, 5.5%, 2020                     1,750,000       1,846,810
                             Mobile County, AL, 6%, 2009 (c)                                            1,345,000       1,440,791
                             Morgan County, AL, Warrants, AMBAC, 5%, 2028                               1,380,000       1,427,734
                             Russell County, AL, Warrants, "A", AMBAC, 5%, 2008 (c)                     1,000,000       1,039,960
                                                                                                                     ------------
                                                                                                                     $ 12,387,050
- ---------------------------------------------------------------------------------------------------------------------------------
General Obligations -
Improvement - 5.5%           Birmingham, AL, "A", 5.75%, 2017                                         $ 1,000,000    $  1,079,260
                             Birmingham, AL, "B", 5.75%, 2009 (c)                                       1,820,000       1,950,203
                             Birmingham, AL, "B", 5.75%, 2019                                             180,000         191,713
                             Montgomery, AL, Warrants, MBIA, 5.1%, 2021                                 1,005,000       1,058,305
                             Puerto Rico Municipal Finance Agency, RITES, FSA, 7.101%, 2017 (z)(v)        500,000         567,820
                                                                                                                     ------------
                                                                                                                     $  4,847,301
- ---------------------------------------------------------------------------------------------------------------------------------
General Obligations -
Schools - 5.5%               Bessemer, AL, School Warrants, AMBAC, 5.5%, 2020                         $ 2,015,000    $  2,160,120
                             Phenix City, AL, AMBAC, 5.65%, 2021                                        1,500,000       1,625,025
                             Tuscaloosa, AL, Warrants, 5.7%, 2018                                       1,000,000       1,069,210
                                                                                                                     ------------
                                                                                                                     $  4,854,355
- ---------------------------------------------------------------------------------------------------------------------------------
Healthcare Revenue -         Alabama Special Care Facilities Financing Authority (Daughters of
Hospitals - 14.4%            Charity), AMBAC, ETM, 5%, 2025 (c)                                       $ 1,500,000    $  1,515,615
                             Birmingham Medical Center, East Alabama, Special Health Care
                             Facilities, Eastern Health Systems, "B", 5%, 2018                            500,000         495,900
                             Birmingham, AL, Baptist Health Systems, "A", (Baptist Medical
                             Center), 5.625%, 2015                                                        300,000         316,119
                             Birmingham, AL, Baptist Medical Center, Special Care Facilities Rev.
                             (Baptist Health Systems, Inc.), "A", 5%, 2030                                200,000         195,286
                             Health Care Authority For Baptist Health, "D", 5%, 2021                      400,000         408,244
                             Houston County, AL, Health Care Authority, AMBAC, 6.125%, 2022             1,000,000       1,082,020
                             Huntsville, AL, Health Care Authority Rev., 5.625%, 2026                     950,000         988,200
                             Huntsville, AL, Health Care Authority Rev., "A", MBIA, 5%, 2023            1,000,000       1,025,490
                             Lauderdale County & Florence, AL, Health Care Authority Rev. (Eliza
                             Coffee Memorial Hospital), MBIA, 5.75%, 2008 (c)                           1,000,000       1,046,450
                             Lauderdale County & Florence, AL, Health Care Authority Rev., "A",
                             (Coffee Health Group), MBIA, 5.75%, 2014                                   1,000,000       1,064,850
                             Marshall County, AL, Health Care Authority Rev., "A", 5.75%, 2032          1,000,000       1,040,060
                             Montgomery, AL, Medical Clinic Board Rev. (Jackson Hospital &
                             Clinic), AMBAC, 5.875%, 2016                                               1,000,000       1,022,390
                             Montgomery, AL, Special Care Facilities, Financing Authority Rev.
                             (Baptist Health), "A-2", MBIA, 0% to 2007, 5% to 2014 (c)                  1,135,000       1,107,544
                             Montgomery, AL, Special Care Facilities, Financing Authority Rev.
                             (Baptist Health), "C", 5.25%, 2014 (c)                                     1,000,000       1,087,980
                             Valley, AL, Special Care Facilities Financing Authority, "A"
                             (Lanier Memorial Hospital), 5.65%, 2022                                      225,000         219,926
                                                                                                                     ------------
                                                                                                                     $ 12,616,074
- ---------------------------------------------------------------------------------------------------------------------------------
Industrial Revenue -         Mobile County, AL, Industrial Development Authority
Metals - 0.6%                Rev. (Ipsco, Inc.), 6.875%, 2030                                         $   500,000    $    530,990
- ---------------------------------------------------------------------------------------------------------------------------------
Industrial Revenue -
Other - 0.5%                 Fairfield, AL, Environment Improvement Rev. (USX Corp.), 5.4%, 2016      $   400,000    $    424,068
- ---------------------------------------------------------------------------------------------------------------------------------
Industrial Revenue -         Butler, AL, Industrial Development Board, Solid Waste Disposal Rev.
Paper - 3.6%                 (Georgia Pacific Corp.), 5.75%, 2028                                     $   200,000    $    196,272
                             Camden, AL, Industrial Development Board Exempt Rev., "B"
                             (Weyerhaeuser), 6.375%, 2024                                                 500,000         542,255
                             Mobile, AL, Industrial Development Board Improvement Rev., "A"
                             (International Paper Co.), 6.35%, 2016                                       650,000         689,585
                             Mobile, AL, Industrial Development Board Improvement Rev., "B"
                             (International Paper Co.), 6.45%, 2019                                       350,000         371,028
                             Phenix City, AL, Environmental Improvement Rev., "A" (MeadWestvaco),
                             6.35%, 2035                                                                  750,000         810,068
                             Selma, AL, Industrial Development Board, "A" (International
                             Paper Co.), 6.7%, 2018                                                       500,000         536,945
                                                                                                                     ------------
                                                                                                                     $  3,146,153
- ---------------------------------------------------------------------------------------------------------------------------------
Miscellaneous Revenue -      Birmingham, AL, Downtown Redevelopment Authority Rev.
Other - 2.8%                 (Social Security Administrative Building), ETM, 12.5%, 2010 (c)          $ 1,410,000    $  1,639,802
                             East Central Alabama Industrial Development Authority Rev.,
                             Unrefunded Balance, AMBAC, 5.4%, 2015                                        790,000         820,060
                                                                                                                     ------------
                                                                                                                     $  2,459,862
- ---------------------------------------------------------------------------------------------------------------------------------
Multi-Family Housing         Alabama Housing Finance Authority, Multi-Family Residential
Revenue - 2.5%               Development Rev., "K", (South Bay Apartments), FNMA, 5.875%, 2021        $   960,000    $  1,001,213
                             Alabama Housing Finance Authority, Multi-Family Residential
                             Development Rev., FHA, 7.25%, 2023                                         1,095,000       1,106,059
                             Birmingham, AL, Multi-Family Housing Rev., "C" (Beaconview
                             Apartments), 8%, 2030 (d)                                                    395,000          39,500
                             Puerto Rico Housing Finance Corp., Multi-Family Mortgage
                             Rev., "A-1", FHA, LOC, 7.5%, 2015                                             70,000          70,155
                                                                                                                     ------------
                                                                                                                     $  2,216,927
- ---------------------------------------------------------------------------------------------------------------------------------
Single Family Housing -      Alabama Housing Finance Authority, Collateral Home Mortgage Bond
State - 1.4%                 Program II, "B", 5.15%, 2019                                             $    65,000    $     65,714
                             Alabama Housing Finance Authority, Single Family Mortgage Rev.,
                             Collateral Home Mortgage Bond Program I, "B-1", 5.7%, 2015                   420,000         428,534
                             Alabama Housing Finance Authority, Single Family Mortgage Rev.,
                             Collateral Home Mortgage Bond Program II, "A-2", GNMA, 5.4%, 2022            660,000         673,853
                             Alabama Housing Finance Authority, Single Family Mortgage Rev.,
                             Collateral Home Mortgage Bond Program II, "B", 5.15%, 2019                    70,000          70,769
                                                                                                                     ------------
                                                                                                                     $  1,238,870
- ---------------------------------------------------------------------------------------------------------------------------------
State & Local Agencies -
7.4%                         Alabama Building Renovation Authority, AMBAC, 6%, 2014                   $ 1,515,000    $  1,646,608
                             Alabama Public School & College, Capital Improvement, "A", 5%, 2019          500,000         517,930
                             Alabama Public School & College, Capital Improvement, "C", 5.75%, 2017     1,000,000       1,074,340
                             Alabama Public School & College, Capital Improvement, "C", 5.75%, 2018     1,035,000       1,111,942
                             Jefferson County, AL, Board of Education, "A", FSA, 5.8%, 2007 (c)           865,000         898,104
                             Puerto Rico Public Finance Corp., RITES, AMBAC, 6.826%, 2013 (z)(v)          500,000         591,270
                             Puerto Rico Public Finance Corp., RITES, AMBAC, 6.826%, 2016 (z)(v)          500,000         606,740
                                                                                                                     ------------
                                                                                                                     $  6,446,934
- ---------------------------------------------------------------------------------------------------------------------------------
Tax - Other - 1.2%           Virgin Islands Public Finance Authority, "A", 5.5%, 2018                 $ 1,000,000    $  1,037,990
- ---------------------------------------------------------------------------------------------------------------------------------
Tobacco - 0.5%               Children's Trust Fund, Tobacco Settlement Rev., Puerto Rico,
                             5.375%, 2033                                                             $   455,000    $    466,425
- ---------------------------------------------------------------------------------------------------------------------------------
Universities - Colleges -    Alabama Board of Education Rev., Refunding & Improvement (Southern
8.1%                         Union State Community College), MBIA, 5%, 2022                           $ 1,000,000    $  1,036,370
                             Alabama Private Colleges & Universities, Facilities Authority Rev.
                             (Tuskegee University), ASST GTY, 4.75%, 2026                               1,000,000       1,004,670
                             Auburn University, AL, General Fee Rev., AMBAC, 5%, 2034                   1,000,000       1,027,570
                             Auburn University, General Fee Rev., AMBAC, 5%, 2029                       1,000,000       1,035,140
                             Mobile, AL, Spring Hill College, Educational Building Authority
                             Rev., "A", 5.25%, 2034                                                     1,360,000       1,425,824
                             University of Alabama, General Rev., "A", MBIA, 5%, 2029                   1,000,000       1,036,820
                             University of Alabama, University Rev., General Fee, FGIC, 5%, 2021          525,000         547,685
                                                                                                                     ------------
                                                                                                                     $  7,114,079
- ---------------------------------------------------------------------------------------------------------------------------------
Utilities - Municipal
Owned - 10.1%                Alabama Municipal Electric Power Authority, "A", MBIA, 5%, 2023          $ 1,000,000    $  1,041,020
                             Guam Power Authority Rev., RITES, AMBAC, 6.565%, 2013 (z)(v)                 500,000         559,090
                             Guam Power Authority Rev., RITES, AMBAC, 6.065%, 2018 (z)(v)               4,500,000       4,828,950
                             Puerto Rico Electric Power Authority Rev., "II", 5.25%, 2031                 875,000         909,615
                             Southeastern Alabama Gas District Systems Rev., "A", AMBAC, 5.5%, 2020     1,000,000       1,073,410
                             Tuskegee, AL, Utilities Board, AMBAC, 5.5%, 2022                             400,000         412,328
                                                                                                                     ------------
                                                                                                                     $  8,824,413
- ---------------------------------------------------------------------------------------------------------------------------------
Water & Sewer Utility        Alabama Drinking Water Finance Authority, Revolving Fund Loan, "A",
Revenue - 16.9%              AMBAC, 6%, 2021                                                          $   725,000    $    784,573
                             Alabama Drinking Water Finance Authority, Revolving Fund Loan, "C",
                             AMBAC, 5.75%, 2018                                                         1,000,000       1,077,140
                             Alabama Water Pollution Control Authority, Revolving Fund Loan, "B",
                             AMBAC, 5.5%, 2016                                                          1,000,000       1,006,750
                             Alabama Water Pollution Control Authority, Revolving Fund Loan, "B",
                             AMBAC, 5.5%, 2020                                                          1,380,000       1,389,315
                             Alabama Water Pollution Control Authority, Revolving Fund Loan,
                             AMBAC, 5.75%, 2019                                                         1,000,000       1,061,260
                             Alabaster, AL, Sewer Rev., AMBAC, 5%, 2029                                   750,000         775,942
                             Bessemer, AL, Water Rev., Warrants, "A", AMBAC, 5.75%, 2026                1,000,000       1,024,720
                             Birmingham, AL, Waterworks & Sewer Board Rev., "A", FGIC, 5%, 2034         1,365,000       1,415,136
                             Jasper, AL, Waterworks & Sewer Board, "A", AMBAC, 5.2%, 2020                 750,000         789,435
                             Jefferson County, AL, Sewer Rev., Warrants, "D", FGIC, 5.7%, 2007 (c)      1,000,000       1,026,520
                             Limestone County, AL, Water Authority, FGIC, 5.5%, 2009 (c)                2,650,000       2,775,398
                             Madison, AL, Water & Wastewater Board, MBIA, 5.5%, 2019                    1,000,000       1,031,820
                             Orange Beach, AL, Water, Sewer, & Fire Protection Authority Rev.,
                             MBIA, 5%, 2030                                                               500,000         519,630
                             Ozark, AL, Utilities Board Water & Sewer Rev., AMBAC, 5%, 2031               100,000         103,936
                                                                                                                     ------------
                                                                                                                     $ 14,781,575
- ---------------------------------------------------------------------------------------------------------------------------------
  TOTAL MUNICIPAL BONDS (IDENTIFIED COST, $81,250,077)                                                               $ 85,491,096
- ---------------------------------------------------------------------------------------------------------------------------------
Floating Rate Demand Notes - 0.5%
- ---------------------------------------------------------------------------------------------------------------------------------
                             Burke County, GA, Development Authority Pollution Control Rev.
                             (Oglethorpe Power Corp.), "A", 3.22%, due 4/05/06                        $   100,000    $    100,000
                             Jefferson County, AL, Sewer Rev., Warrants, "B-4", 3.22%, due 4/06/06        300,000         300,000
- ---------------------------------------------------------------------------------------------------------------------------------
  TOTAL FLOATING RATE DEMAND NOTES, AT IDENTIFIED COST                                                               $    400,000
- ---------------------------------------------------------------------------------------------------------------------------------
  TOTAL INVESTMENTS (IDENTIFIED COST, $81,650,077)                                                                   $ 85,891,096
- ---------------------------------------------------------------------------------------------------------------------------------
Other Assets, Less Liabilities - 2.0%                                                                                   1,755,786
- ---------------------------------------------------------------------------------------------------------------------------------
  NET ASSETS - 100.0%                                                                                                $ 87,646,882
- ---------------------------------------------------------------------------------------------------------------------------------

INTEREST RATE SWAPS


                              NOTIONAL PRINCIPAL                                                                  UNREALIZED
                                  AMOUNT OF               CASH FLOWS PAID                  CASH FLOWS            APPRECIATION
EXPIRATION        CURRENCY        CONTRACT                  BY THE FUND               RECEIVED BY THE FUND      (DEPRECIATION)
- ------------------------------------------------------------------------------------------------------------------------------
                                                                                                    
12/01/07             USD          $2,000,000              Fixed - 3 Year               Floating - 7 day            $27,467
                                                      BMA Swap Index (2.795%)           BMA Swap Index
- ------------------------------------------------------------------------------------------------------------------------------
 7/13/16             USD           1,000,000              Fixed - 10 Year              Floating - 7 Day             21,024
                                                      BMA Swap Index (3.742%)           BMA Swap Index
- ------------------------------------------------------------------------------------------------------------------------------
 6/22/18             USD           1,000,000              Fixed - 12 Year              Floating - 7 Day             19,031
                                                      BMA Swap Index (3.861%)           BMA Swap Index
- ------------------------------------------------------------------------------------------------------------------------------
 8/02/21             USD           1,000,000              Fixed - 15 Year              Floating - 7 Day             15,981
                                                      BMA Swap Index (4.011%)           BMA Swap Index
- ------------------------------------------------------------------------------------------------------------------------------
 9/07/26             USD           1,000,000             Floating - 3 Month             Fixed - 20 Year            (26,909)
                                                          LIBOR Swap Index         LIBOR Swap Index (5.268%)
- ------------------------------------------------------------------------------------------------------------------------------
 9/13/26             USD             750,000             Floating - 3 Month             Fixed - 20 Year            (11,622)
                                                          LIBOR Swap Index         LIBOR Swap Index (5.363%)
- ------------------------------------------------------------------------------------------------------------------------------
                                                                                                                   $44,972
                                                                                                                   =======

At March 31, 2006, the fund had sufficient cash and/or securities to cover any commitments under these derivative contracts.

SEE PORTFOLIO FOOTNOTES AND NOTES TO FINANCIAL STATEMENTS




PORTFOLIO OF INVESTMENTS - 3/31/06                      MFS(R) ARKANSAS MUNICIPAL BOND FUND

The Portfolio of Investments is a complete list of all securities owned by your
fund. It is categorized by broad-based asset classes.


Municipal Bonds - 97.6%
- ---------------------------------------------------------------------------------------------------------------------------------
                             ISSUER                                                                   SHARES/PAR      VALUE ($)
- ---------------------------------------------------------------------------------------------------------------------------------
                                                                                                               
Airport and Port
Revenue - 0.6%               Little Rock, AR, Airport Rev., "A", FSA, 5.25%, 2019                     $   800,000    $    831,872

- ---------------------------------------------------------------------------------------------------------------------------------
General Obligations  -
General Purpose - 8.2%       Arkansas College Savings, "A", 0%, 2017                                  $ 1,840,000    $  1,122,455
                             Commonwealth of Puerto Rico, Infrastructure, RITES, ETM,
                             7.099%, 2019 (z)(c)(v)                                                     1,250,000       1,441,850
                             Commonwealth of Puerto Rico, Public Improvement, "A", CIFG, 5%, 2034       1,000,000       1,031,260
                             Commonwealth of Puerto Rico, RITES, MBIA, 7.599%, 2020 (z)(v)              3,000,000       3,463,440
                             Puerto Rico Public Buildings Authority Rev. (State Office Building),
                             "F", XLCA, 5.25%, 2025                                                     2,000,000       2,224,520
                             Sebastian County, AR, Community Refunding & Improvement, AMBAC,
                             5.6%, 2007 (c)                                                             1,500,000       1,544,100
                                                                                                                     ------------
                                                                                                                     $ 10,827,625
- ---------------------------------------------------------------------------------------------------------------------------------
General Obligations -
Improvement - 3.4%           Puerto Rico Municipal Finance Agency, RITES, FSA, 7.101%, 2017 (z)(v)    $   735,000    $    834,695
                             Puerto Rico Municipal Finance Agency, RITES, FSA, 7.101%, 2018 (z)(v)      3,250,000       3,690,830
                                                                                                                     ------------
                                                                                                                     $  4,525,525
- ---------------------------------------------------------------------------------------------------------------------------------
General Obligations -
Schools - 5.1%               Arkansas, Capital Appreciation, College Savings, "B", 0%, 2012           $ 1,200,000    $    928,548
                             Arkansas, Capital Appreciation, College Savings, "B", 0%, 2013             1,000,000         737,550
                             Arkansas, Capital Appreciation, College Savings, "B", 0%, 2014             1,150,000         807,679
                             Arkansas, Capital Appreciation, College Savings, "B", 0%, 2015             1,100,000         739,805
                             Little Rock, AR, School District Construction, "C", FSA, 5%, 2017          1,000,000       1,038,070
                             Little Rock, AR, School District, "A", FSA, 5.4%, 2017                     1,000,000       1,054,180
                             Northwest Arkansas Community College District, Capital Improvement,
                             AMBAC, 5%, 2028                                                            1,380,000       1,437,325
                                                                                                                     ------------
                                                                                                                     $  6,743,157
- ---------------------------------------------------------------------------------------------------------------------------------
Healthcare Revenue -         Arkansas Development Finance Authority Rev. (Washington Regional
Hospitals - 10.3%            Medical Center), 7.25%, 2010 (c)                                         $   500,000    $    561,360
                             Arkansas Development Finance Authority, Health Refunding (Sister of
                             Mercy), "A", MBIA, 5%, 2013                                                4,340,000       4,500,406
                             Batesville, AR, Medical District Rev. (White River Medical Center),
                             5.5%, 2024                                                                   750,000         772,598
                             Baxter County, AR, Hospital Rev., Refunding & Improvement,
                             "B", 5.6%, 2021                                                            1,500,000       1,548,150
                             Crittenden County, AR, Hospital Rev., Refunding &
                             Improvement, 7.15%, 2025                                                     750,000         749,625
                             Jefferson County, AR, Hospital Rev., Refunding & Improvement
                             (Regional Medical Center), 5.8%, 2021                                      1,000,000       1,064,360
                             Little Rock, AR, Health Facilities Hospital Board Rev. (Baptist
                             Medical Center), 6.9%, 2009                                                  400,000         434,912
                             North Little Rock, AR, Baptist Health Facilities, 5.7%, 2022                 500,000         518,815
                             Pulaski County, AR, Hospital Rev. (Arkansas Childrens Hospital),
                             "B", 5.25%, 2015                                                             500,000         522,555
                             Pulaski County, AR, Hospital Rev. (Arkansas Childrens Hospital),
                             "B", 5.25%, 2016                                                           1,000,000       1,039,980
                             Sebastian County, AR, Health Facilities Improvement (Sparks
                             Regional Medical Center), "A", 5.25%, 2021                                 1,000,000       1,027,910
                             Washington County, AR, Hospital Rev., Regional Medical Center,
                             "A", 5%, 2035                                                              1,000,000         986,400
                                                                                                                     ------------
                                                                                                                     $ 13,727,071
- ---------------------------------------------------------------------------------------------------------------------------------
Healthcare Revenue - Long    Arkansas Development Finance Authority Rev. (Evangelical Lutheran
Term Care - 1.0%             Project), "B", AMBAC, 5.375%, 2019                                       $ 1,315,000    $  1,389,166
- ---------------------------------------------------------------------------------------------------------------------------------
Industrial Revenue -         Virgin Islands Public Finance Authority, Refinery Facilities Rev.
Other - 0.3%                 (Hovensa Refinery), 5.875%, 2022                                         $   335,000    $    353,264
- ---------------------------------------------------------------------------------------------------------------------------------
Industrial Revenue -         Arkansas State Development Finance Authority, Industrial Facilities
Paper - 1.2%                 Rev. (Potlatch Corp.), "A", 7.75%, 2025                                  $   250,000    $    281,885
                             Camden, AR, Environmental Improvement Rev. (International
                             Paper Co.), "A", 5%, 2018                                                    750,000         741,015
                             Pine Bluff, AR, Environmental Improvement (International
                             Paper Co.), "A", 5.55%, 2022                                                 250,000         253,260
                             Pine Bluff, AR, Environmental Refunding (International
                             Paper Co.), "A", 6.7%, 2020                                                  300,000         324,567
                                                                                                                     ------------
                                                                                                                     $  1,600,727
- ---------------------------------------------------------------------------------------------------------------------------------
Multi-Family Housing         Fort Smith, AR, Residential Housing (Gorman Towers), "A",
Revenue - 0.8%               GNMA, 5.45%, 2037                                                        $ 1,000,000    $  1,023,150
- ---------------------------------------------------------------------------------------------------------------------------------
Sales & Excise Tax
Revenue - 0.7%               Stuttgart, AR, Sales and Use Tax Rev., AMBAC, 4.2%, 2031                 $   970,000    $    943,441
- ---------------------------------------------------------------------------------------------------------------------------------
Single Family Housing -      Harrison, AR, Residential Housing Facilities Board, Single Family
Local - 7.5%                 Mortgage Rev., FGIC, ETM, 7.4%, 2011 (c)                                 $ 4,000,000    $  4,661,360
                             Lonoke County, AR, Residential Housing Facilities, FNMA, 7.9%, 2011           92,864          94,754
                             Pulaski County, AR, Public Facilities Board Rev., "C", FNMA,
                             0%, 2014                                                                   2,750,000       1,857,020
                             Pulaski County, AR, Public Facilities Board, "A", GNMA, 5.75%, 2034        1,865,000       1,906,664
                             Sherwood, AR, Residential Housing Facilities Board, Single Family
                             Rev., MBIA, 7.5%, 2010 (c)                                                 1,250,000       1,441,000
                                                                                                                     ------------
                                                                                                                     $  9,960,798
- ---------------------------------------------------------------------------------------------------------------------------------
Single Family Housing -
State - 9.1%                 Arkansas Development Finance Authority Rev., "1", 0%, 2011               $   290,000    $    192,055
                             Arkansas Development Finance Authority Single Family Mortgage,
                             "B", GNMA, 4.85%, 2031                                                     1,000,000         989,160
                             Arkansas Development Finance Authority, Mortgage Backed Securities
                             Program, "B", GNMA, 5%, 2029                                                 225,000         228,377
                             Arkansas Development Finance Authority, Mortgage Backed Securities
                             Program, "C", GNMA, 5.35%, 2027                                            1,560,000       1,578,283
                             Arkansas Development Finance Authority, Mortgage Backed Securities
                             Program, "E", GNMA, 5.4%, 2034                                               810,000         827,982
                             Arkansas Development Finance Authority, Single Family Mortgage
                             Rev., "B", GNMA, 5.125%, 2024                                                445,000         451,817
                             Arkansas Development Finance Authority, Single Family Mortgage
                             Rev., "B", GNMA, 5.25%, 2035                                               3,055,000       3,115,520
                             Arkansas Finance Authority, Mortgage Backed Securities Program,
                             "B", GNMA, 4.45%, 2034                                                     1,265,000       1,266,632
                             Arkansas Finance Authority, Single Family, Mortgage Backed Securities
                             Program, 5.3%, 2023                                                          520,000         526,864
                             Arkansas Finance Authority, Single Family, Mortgage Backed Securities
                             Program, "D", GNMA, 5.85%, 2024                                            1,055,000       1,069,454
                             Arkansas Finance Authority, Single Family, Mortgage Backed Securities
                             Program, "I", GNMA, 5.3%, 2033                                               460,000         464,062
                             Arkansas Housing Development Agency, Single Family Mortgage Program,
                             ETM, 8.375%, 2011 (c)                                                      1,000,000       1,216,980
                             Puerto Rico Housing Finance Authority Mortgage Backed
                             Securities, "A", 4.375%, 2017                                                165,000         161,962
                                                                                                                     ------------
                                                                                                                     $ 12,089,148
- ---------------------------------------------------------------------------------------------------------------------------------
State & Local Agencies -     Arkansas Development Finance Authority, Economic Development
2.5%                         Rev., "B", 5%, 2018                                                      $   175,000    $    179,963
                             Arkansas Development Finance Authority, Economic Development
                             Rev., "B", AMBAC, 5.8%, 2020                                                 500,000         519,505
                             Arkansas State Development Finance Authority Rev., Environmental
                             State Agency Facilities, "A", AMBAC, 5%, 2040                              2,500,000       2,583,025
                                                                                                                     ------------
                                                                                                                     $  3,282,493
- ---------------------------------------------------------------------------------------------------------------------------------
Student Loan Revenue - 1.5%  Arkansas Student Loan Authority, "B", 6.25%, 2006 (c)                    $ 2,000,000    $  2,008,120
- ---------------------------------------------------------------------------------------------------------------------------------
Tax - Other - 3.3%           Little Rock, AR, Hotel & Restaurant Gross Receipts
                             Tax, 7.375%, 2015                                                        $ 2,790,000    $  3,286,760
                             Virgin Islands Public Finance Authority Rev., "A", 5.5%, 2022              1,000,000       1,036,310
                                                                                                                     ------------
                                                                                                                     $  4,323,070
- ---------------------------------------------------------------------------------------------------------------------------------
Tobacco - 0.4%               Children's Trust Fund, Tobacco Settlement Rev., Puerto Rico,
                             5.375%, 2033                                                             $   235,000    $    240,901
                             Children's Trust Fund, Tobacco Settlement Rev., Puerto Rico,
                             5.5%, 2039                                                                   290,000         297,789
                                                                                                                     ------------
                                                                                                                     $    538,690
- ---------------------------------------------------------------------------------------------------------------------------------
Transportation - Special     Commonwealth of Puerto Rico Highway & Transportation Authority, "B",
Tax - 2.6%                   MBIA, 5.875%, 2010 (c)                                                   $ 2,000,000    $  2,189,500
                             Commonwealth of Puerto Rico Highway & Transportation Authority, "G",
                             5%, 2023                                                                     750,000         767,310
                             Commonwealth of Puerto Rico Highway & Transportation Authority, "G",
                             FGIC, 5%, 2022                                                               500,000         524,715
                                                                                                                     ------------
                                                                                                                     $  3,481,525
- ---------------------------------------------------------------------------------------------------------------------------------
Universities - Colleges -    Arkansas State University, Student Fee-ASU (Newport Campus),
16.5%                        AMBAC, 5%, 2028                                                          $   700,000    $    713,629
                             Conway, AR, Public Facilities Board, Capital Improvement Rev.
                             (Hendrix College), "B", 5%, 2035                                           1,000,000       1,010,480
                             Conway, AR, Public Facilities Rev. (Hendrix College), 5.85%, 2006 (c)      1,000,000       1,011,530
                             Pulaski, AR, Technical College, Student Tuition & Fee Rev., FGIC,
                             5%, 2029                                                                   1,820,000       1,875,182
                             Siloam Springs, AR, Public Education Facilities, Capital
                             Improvement (John Brown University), AMBAC, 5.35%, 2020                      500,000         525,785
                             University of Arkansas, University Construction Rev.
                             (UAMS Campus), "B", MBIA, 5%, 2026                                         1,405,000       1,463,589
                             University of Arkansas, University Construction Rev.
                             (UAMS Campus), "B", MBIA, 5%, 2027                                         1,000,000       1,039,530
                             University of Arkansas, University Facilities Rev. (Fayetteville
                             Campus), FGIC, 5%, 2027                                                    3,155,000       3,255,676
                             University of Arkansas, University Facilities Rev. (Fayetteville
                             Campus), FGIC, 5%, 2032                                                    2,500,000       2,572,500
                             University of Arkansas, University Facilities Rev. (Monticello),
                             AMBAC, 5%, 2025                                                            1,525,000       1,583,835
                             University of Arkansas, University Rev. (UAMS Campus), "B",
                             MBIA, 5%, 2034                                                             3,290,000       3,412,947
                             University of Arkansas, University Revenues Facilities,
                             (UAMS Campus), FGIC, 5%, 2028                                              2,000,000       2,085,640
                             University of Central Arkansas, "A", AMBAC, 5%, 2023                       1,100,000       1,124,266
                             University of Central Arkansas, Student Housing Rev., "C",
                             FGIC, 5%, 2034                                                               250,000         254,735
                                                                                                                     ------------
                                                                                                                     $ 21,929,324
- ---------------------------------------------------------------------------------------------------------------------------------
Universities -
Dormitories - 2.5%           Arkansas State University Rev., Housing Systems, AMBAC, 5.15%, 2021      $ 1,240,000    $  1,291,683
                             Arkansas Tech University Rev., Housing Systems, AMBAC, 5.2%, 2026          1,000,000       1,062,370
                             Pope County, AR, Residential Housing, Arkansas Tech University
                             Project, "A", 6%, 2027                                                       500,000         490,145
                             University of Central Arkansas, Student Housing Rev., "C", FGIC,
                             5.25%, 2029                                                                  500,000         520,090
                                                                                                                     ------------
                                                                                                                     $  3,364,288
- ---------------------------------------------------------------------------------------------------------------------------------
Utilities - Investor         Jefferson County, AR, Pollution Control Rev. (Arkansas Power &
Owned - 0.8%                 Light Co.), 6.3%, 2018                                                   $ 1,050,000    $  1,055,355
- ---------------------------------------------------------------------------------------------------------------------------------
Utilities - Municipal
Owned - 8.0%                 Benton, AR, Utilities Rev., AMBAC, 5%, 2030                              $   470,000    $    484,514
                             North Little Rock, AR, Electric Rev., "A", MBIA, 6.5%, 2010                2,000,000       2,116,100
                             North Little Rock, AR, Electric Rev., "A", MBIA, 6.5%, 2015                6,000,000       6,911,820
                             Puerto Rico Electric Power Authority Rev., "NN", 5.125%, 2024              1,000,000       1,044,460
                                                                                                                     ------------
                                                                                                                     $ 10,556,894
- ---------------------------------------------------------------------------------------------------------------------------------
Water & Sewer Utility        Arkansas Development Finance Authority, Economic Development Rev.,
Revenue - 11.3%              "I", AMBAC, 5.65%, 2014                                                  $   375,000    $    381,840
                             Arkansas Development Finance Authority, Revolving Loan Fund, "A",
                             5.85%, 2006 (c)                                                            2,130,000       2,159,202
                             Fort Smith, AR, Water & Sewer Rev., "C", FSA, 5.25%, 2020                  1,315,000       1,395,005
                             Fort Smith, AR, Water & Sewer Rev., AMBAC, 5.65%, 2009 (c)                 1,000,000       1,064,960
                             Fort Smith, AR, Water & Sewer Rev., Refunding & Construction,
                             "A", FSA, 5%, 2019                                                         2,125,000       2,208,619
                             Fort Smith, AR, Water & Sewer Rev., Refunding & Construction,
                             "A", FSA, 5%, 2021                                                         2,750,000       2,843,225
                             Little Rock, AR, Sewer Rev., Refunding & Construction, 5%, 2022            1,750,000       1,806,771
                             Paragould, AR, Water Sewer & Electric Rev., AMBAC, 5.6%, 2010 (c)            765,000         826,261
                             South Sebastian County, AR, Water Refunding, MBIA, 5%, 2038                1,000,000       1,019,370
                             Virgin Islands Water & Power Authority Rev., ASST GTY, 5.3%, 2018          1,250,000       1,302,663
                                                                                                                     ------------
                                                                                                                     $ 15,007,916
- ---------------------------------------------------------------------------------------------------------------------------------
  TOTAL MUNICIPAL BONDS (IDENTIFIED COST, $122,512,930)                                                              $129,562,619
- ---------------------------------------------------------------------------------------------------------------------------------
Floating Rate Demand Notes - 1.5%
- ---------------------------------------------------------------------------------------------------------------------------------
                             Allegheny County, PA, Hospital Development Authority Rev.
                             (Presbyterian University Hospital), "D", 3.22%, due 4/06/06              $   200,000    $    200,000
                             Georgia Municipal Electric Authority, 3.05%, due 4/05/06                     100,000         100,000
                             Illinois Development Finance Authority Rev. (Jewish Federation of
                             Metropolitan Chicago), 3.18%, due 4/03/06                                     50,000          50,000
                             Jefferson County, AL, Sewer Rev., Capital Improvement Warrants, "A",
                             3.22%, due 4/06/06                                                           700,000         700,000
                             Jefferson County, AL, Sewer Rev., Warrants, "B-4", 3.22%, due 4/06/06        800,000         800,000
                             Triborough Bridge & Tunnel Authority, NY, Rev., "F",
                             3.02%, due 4/06/06                                                           100,000         100,000
- ---------------------------------------------------------------------------------------------------------------------------------
  TOTAL FLOATING RATE DEMAND NOTES, AT IDENTIFIED COST                                                               $  1,950,000
- ---------------------------------------------------------------------------------------------------------------------------------
  TOTAL INVESTMENTS (IDENTIFIED COST, $124,462,930)                                                                  $131,512,619
- ---------------------------------------------------------------------------------------------------------------------------------
Other Assets, Less Liabilities - 0.9%                                                                                   1,202,828
- ---------------------------------------------------------------------------------------------------------------------------------
  NET ASSETS - 100.0%                                                                                                $132,715,447
- ---------------------------------------------------------------------------------------------------------------------------------

INTEREST RATE SWAPS


                              NOTIONAL PRINCIPAL                                                                  UNREALIZED
                                  AMOUNT OF               CASH FLOWS PAID                  CASH FLOWS            APPRECIATION
EXPIRATION        CURRENCY        CONTRACT                  BY THE FUND               RECEIVED BY THE FUND      (DEPRECIATION)
- ------------------------------------------------------------------------------------------------------------------------------
                                                                                                    
12/01/07             USD          $3,000,000              Fixed  - 3 Year              Floating - 7 Day            $41,188
                                                      BMA Swap Index (2.795%)           BMA Swap Index
- ------------------------------------------------------------------------------------------------------------------------------
 7/13/16             USD           1,500,000              Fixed - 10 Year              Floating - 7 Day             31,536
                                                      BMA Swap Index (3.742%)           BMA Swap Index
- ------------------------------------------------------------------------------------------------------------------------------
 6/15/18             USD           3,000,000              Fixed - 12 Year              Floating - 7 Day             15,791
                                                      BMA Swap Index (4.019%)           BMA Swap Index
- ------------------------------------------------------------------------------------------------------------------------------
 6/22/18             USD           2,000,000              Fixed - 12 Year              Floating - 7 Day             38,062
                                                      BMA Swap Index (3.861%)           BMA Swap Index
- ------------------------------------------------------------------------------------------------------------------------------
 8/02/21             USD           1,000,000              Fixed - 15 Year              Floating - 7 Day             15,981
                                                      BMA Swap Index (4.011%)           BMA Swap Index
- ------------------------------------------------------------------------------------------------------------------------------
 9/07/26             USD           1,000,000             Floating - 3 Month             Fixed - 20 Year            (26,908)
                                                          LIBOR Swap Index         LIBOR Swap Index (5.268%)
- ------------------------------------------------------------------------------------------------------------------------------
 9/13/26             USD           1,500,000             Floating - 3 Month             Fixed - 20 Year            (23,244)
                                                          LIBOR Swap Index         LIBOR Swap Index (5.363%)
- ------------------------------------------------------------------------------------------------------------------------------
                                                                                                                   $92,406
                                                                                                                   =======

At March 31, 2006, the fund had sufficient cash and/or securities to cover any commitments under these derivative contracts.

SEE PORTFOLIO FOOTNOTES AND NOTES TO FINANCIAL STATEMENTS




PORTFOLIO OF INVESTMENTS - 3/31/06                       MFS(R) CALIFORNIA MUNICIPAL BOND FUND

The Portfolio of Investments is a complete list of all securities owned by your
fund. It is categorized by broad-based asset classes.


Municipal Bonds - 97.7%
- ---------------------------------------------------------------------------------------------------------------------------------
                             ISSUER                                                                   SHARES/PAR      VALUE ($)
- ---------------------------------------------------------------------------------------------------------------------------------
                                                                                                               
Airport & Port
Revenue - 4.0%               Long Beach, CA, Harbor Rev., "A" FGIC, 5.25%, 2018                       $ 3,500,000    $  3,681,685
                             Los Angeles, CA, Department of Airports Rev. (Ontario International
                             Airport), "A", FGIC, 6%, 2017                                              4,100,000       4,150,594
                             Los Angeles, CA, Harbor Department Rev.,"B", 5.375%, 2023                  3,000,000       3,060,930
                             Port Oakland, CA, "K", FGIC, 5.75%, 2020                                   4,000,000       4,225,120
                                                                                                                     ------------
                                                                                                                     $ 15,118,329
- ---------------------------------------------------------------------------------------------------------------------------------
General Obligations -        Commonwealth of Puerto Rico, ROLS, Series II R 124B, XLCA,
General Purpose - 7.8%       7.693%, 2017 (z)(v)                                                      $ 1,500,000    $  1,840,650
                             Commonwealth of Puerto Rico, ROLS, Series II R 184C, FGIC,
                             7.763%, 2020 (z)(v)                                                        3,300,000       4,077,546
                             Los Angeles, CA, RITES, 6.519%, 2014 (z)(v)                                5,405,000       6,433,788
                             State of California, 10%, 2007                                             1,055,000       1,147,850
                             State of California, 5.5%, 2010 (c)                                        3,000,000       3,235,350
                             State of California, 5.125%, 2025                                          2,000,000       2,086,880
                             State of California, 5.25%, 2029                                           2,000,000       2,094,320
                             State of California, AMBAC, 7.2%, 2008                                     1,600,000       1,711,824
                             State of California, AMBAC, 6.3%, 2010                                     3,000,000       3,319,410
                             State of California, AMBAC, 7%, 2010                                       2,000,000       2,269,780
                             State of California, RITES, "B", 7.519%, 2017 (z)(v)                       1,250,000       1,459,750
                                                                                                                     ------------
                                                                                                                     $ 29,677,148
- ---------------------------------------------------------------------------------------------------------------------------------
General Obligations -
Schools - 15.4%              Antelope Valley, CA (Union High School), "A", MBIA, 5%, 2027             $ 1,500,000    $  1,560,495
                             Butte Glenn Community College District, "A", MBIA, 5%, 2026                1,885,000       1,963,416
                             Campbell, CA, Union High School District, Election 2002, "B",
                             FGIC, 5.5%, 2033                                                           2,270,000       2,469,783
                             Campbell, CA, Union High School District, FSA, 5%, 2021                    1,280,000       1,333,888
                             Capistrano, CA, Union High School District, "A", FGIC, 5.875%, 2020        1,185,000       1,308,619
                             Chaffey, CA, Union High School District, "C", FSA, 5%, 2027                1,000,000       1,042,270
                             Colton, CA, Joint Union School District (Election of 2001), "C",
                             FGIC, 0%, 2032                                                             1,000,000         261,110
                             Colton, CA, Joint Union School District (Election of 2001), "C",
                             FGIC, 0%, 2033                                                             3,000,000         740,610
                             Colton, CA, Joint Union School District, "A", FGIC, 5.375%, 2026           1,200,000       1,304,352
                             Coronado, CA, Union School District, "A", 5.7%, 2020                       1,285,000       1,407,396
                             Escondido, CA, Union School District, "A", FSA, 5%, 2026                   1,000,000       1,036,650
                             Folsom Cordova, CA, Union School District, Facilities
                             Improvement, "A", MBIA, 0%, 2025                                           1,505,000         603,987
                             Glendale, CA, Union School District, "B", FSA, 5.5%, 2018                  4,275,000       4,510,809
                             Inglewood, CA, Union School District, "A", FGIC, 6%, 2019                  1,695,000       1,832,363
                             Little Lake, CA, City School District, "A", FSA, 6.125%, 2010 (c)          1,035,000       1,145,290
                             Live Oak, CA, School District, Santa Cruz County, Election 2004,
                             "A", MBIA,  5%, 2033                                                       1,410,000       1,470,743
                             Los Angeles, CA, Union School District Election of 1997, "E", MBIA,
                             5.125%, 2027                                                               5,000,000       5,265,250
                             Los Angeles, CA, Union School District, RITES, FSA,
                             6.519%, 2020 (z)(v)                                                        5,000,000       5,692,700
                             Moreno Valley, CA, Union School District, Election 2004, "A", FSA,
                             5%, 2025                                                                   1,075,000       1,122,526
                             Moreno Valley, CA, Union School District, Election 2004, "A", FSA,
                             5%, 2026                                                                   1,715,000       1,788,385
                             Morgan Hill, CA, Union School District, FGIC, 5.5%, 2020                   2,545,000       2,751,196
                             Natomas Union School District, Election 2002 "B", FGIC, 5%, 2028           1,430,000       1,488,659
                             Oceanside, CA, Union School District Election of 2000, "C", MBIA,
                             5.25%, 2032                                                                1,940,000       2,049,746
                             Perris, CA, Union School District, "A", FGIC, 0%, 2027                     3,100,000       1,123,068
                             Rowland, CA, Union School District, "A", FSA, 5.5%, 2010 (c)               1,250,000       1,356,063
                             San Gabriel, CA, Union School District, "A", FSA, 5%, 2024                 2,000,000       2,083,400
                             San Ysidro, CA, School District, AMBAC, 6.125%, 2021                         960,000       1,097,520
                             Santa Clara, CA, Union School District, FGIC, 5.5%, 2019                   2,210,000       2,371,750
                             Santa Maria, CA, Joint Union High School District, "A", FSA,
                             5.375%, 2020                                                               1,120,000       1,233,960
                             Santa Maria, CA, Joint Union High School District, "A", FSA,
                             5.375%, 2021                                                               1,210,000       1,331,133
                             Tehachapi, CA, Union School District, "A", FGIC, 5.625%, 2020              1,100,000       1,172,809
                             Val Verde, CA, Union School District, COP, "B", FGIC, 5%, 2030             1,000,000       1,032,810
                             Walnut Valley, CA, Union School District, (Election of 2000), "E",
                             FSA, 0%, 2028                                                              1,535,000         530,128
                             Washington, CA, Union School District, (Election of 1999), "A",
                             FGIC, 5.625%, 2021                                                         1,000,000       1,095,820
                                                                                                                     ------------
                                                                                                                     $ 58,578,704
- ---------------------------------------------------------------------------------------------------------------------------------
Healthcare Revenue -
Hospitals - 11.0%            Abag Finance Authority Rev. (San Diego Hospital), "C", 5.375%, 2020      $ 2,000,000    $  2,069,500
                             California Health Facilities Financing Authority Rev., Catholic
                             Healthcare West, "G", 5.25%, 2023                                          2,000,000       2,070,140
                             California Health Facilities Financing Authority Rev., Cedars Sinai
                             Medical Center, 5%, 2027                                                   1,000,000       1,019,840
                             California Health Facilities Financing Authority Rev., Health
                             Facilities (Adventist Health Systems), "A", 5%, 2033                       1,750,000       1,752,957
                             California Statewide Communities Development Authority Rev. (Henry
                             Mayo Newhall Memorial Hospital), "A", CHFC, 5%, 2018                       2,000,000       2,078,100
                             California Statewide Communities Development Authority Rev. (Kaiser
                             Permanente), "A", 5.5%, 2032                                               2,000,000       2,089,500
                             California Statewide Communities Development Authority Rev. (Los
                             Angeles Children's Hospital), 5.125%, 2019                                 4,000,000       4,129,080
                             California Statewide Communities Development Authority Rev., CHFC,
                             ETM, 0%, 2007 (c)                                                          3,645,000       3,472,519
                             California Statewide Communities Development Authority Rev., CHFC,
                             ETM, 0%, 2008 (c)                                                          6,345,000       5,797,998
                             California Statewide Communities Development Authority Rev., Health
                             Facilities (Memorial Health Services), "A", 6%, 2023                       1,500,000       1,643,040
                             California Statewide Communities Development, "B", 5.625%, 2042            4,000,000       4,172,120
                             California Valley Health Systems, COP, 6.875%, 2023                          485,000         485,456
                             Central California Joint Powers Health Financing (Community
                             Hospitals of Central California), 5.625%, 2021                             1,000,000       1,030,650
                             Kaweah Delta Health Care District Rev., 6%, 2034                           2,000,000       2,152,200
                             Rancho Mirage, CA, Joint Powers (Eisenhower Medical Center),
                             5.625%, 2029                                                               3,000,000       3,170,730
                             Tahoe Forest, CA, Hospital District Rev., "A", 5.85%, 2022                 1,000,000       1,026,880
                             Turlock, CA, Health Facilities Rev. (Emanuel Medical Center),
                             5%, 2024                                                                     500,000         499,395
                             Washington Township, CA, Health Care Rev., 5%, 2018                        1,000,000       1,023,040
                             West Contra Costa California Healthcare District, AMBAC, 5.5%, 2029        2,000,000       2,139,100
                                                                                                                     ------------
                                                                                                                     $ 41,822,245
- ---------------------------------------------------------------------------------------------------------------------------------
Healthcare Revenue - Long    California Health Facilities Financing Authority Rev. (Paradise
Term Care - 0.7%             Valley Estates), 5.125%, 2022                                            $ 1,000,000    $  1,042,410
                             La Verne, CA, COP (Brethren Hillcrest Homes), "B", 6.625%, 2025            1,000,000       1,064,930
                             Millbrae, CA, Residential Facilities Rev. (Magnolia of Millbrae),
                             "A", 7.375%, 2027                                                            465,000         484,688
                                                                                                                     ------------
                                                                                                                     $  2,592,028
- ---------------------------------------------------------------------------------------------------------------------------------
Human Services - 0.5%        California Statewide Communities Development Authority (Prides
                             Industries), 7.125%, 2009 (c)                                            $ 1,640,000    $  1,802,918
- ---------------------------------------------------------------------------------------------------------------------------------
Industrial Revenue -
Environmental Services -     California Pollution Control Financing Authority, Solid Waste
1.4%                         Disposal Rev. (Browning Ferris, Inc.), "A", 5.8%, 2016                   $ 2,000,000    $  1,951,360
                             California Pollution Control Financing Authority, Solid Waste
                             Disposal Rev. (Waste Management, Inc.), "A", 5.125%, 2031                  2,250,000       2,334,960
                             California Pollution Control Financing Authority, Solid Waste
                             Disposal Rev. (Waste Management, Inc.), "A-2", 5.4%, 2025                  1,000,000       1,040,720
                                                                                                                     ------------
                                                                                                                     $  5,327,040
- ---------------------------------------------------------------------------------------------------------------------------------
Industrial Revenue -         Virgin Islands Public Finance Authority, Refinery Facilities Rev.
Other - 0.3%                 (Hovensa Refinery), 5.875%, 2022                                         $   960,000    $  1,012,339
- ---------------------------------------------------------------------------------------------------------------------------------
Miscellaneous Revenue -
Entertainment &
Tourism - 0.4%               Del Mar, CA, Race Track Authority Rev., 6.2%, 2006 (c)                   $ 1,365,000    $  1,405,459
- ---------------------------------------------------------------------------------------------------------------------------------
Miscellaneous Revenue -      San Diego County, CA, COP, (Burnham Institute for Medical Research),
Other - 0.9%                 5%, 2034                                                                 $ 1,000,000    $    994,140
                             San Diego County, CA, COP, (Burnham Institute), 6.25%, 2009 (c)            2,300,000       2,510,105
                                                                                                                     ------------
                                                                                                                     $  3,504,245
- ---------------------------------------------------------------------------------------------------------------------------------
Multi-Family Housing         California Housing Finance Agency Rev., Multi-Unit Rental Housing,
Revenue - 2.7%               "B II", 6.7%, 2015                                                       $ 1,003,000    $  1,006,329
                             California Statewide Communities Development Authority Rev. (Irvine
                             Apartments), 5.25%, 2025                                                   6,000,000       6,183,060
                             San Bernardino County, CA (Equity Residential/Redlands), "A",
                             5.2%, 2029                                                                 3,000,000       3,064,320
                                                                                                                     ------------
                                                                                                                     $ 10,253,709
- ---------------------------------------------------------------------------------------------------------------------------------
Parking - 0.3%               San Francisco, CA, Union Square, MBIA, 6%, 2020                          $ 1,000,000    $  1,094,420
- ---------------------------------------------------------------------------------------------------------------------------------
Sales & Excise Tax           Contra Costa, CA, Transportation & Sales Tax Rev., "A", ETM,
Revenue - 0.1%               6.875%, 2007 (c)                                                         $   480,000    $    494,510
- ---------------------------------------------------------------------------------------------------------------------------------
Single Family Housing -      California Rural Home Mortgage Finance Authority Rev.,
Local - 1.1%                 GNMA, 7.3%, 2031                                                         $    35,000    $     35,801
                             California Rural Home Mortgage Finance Authority Rev., Mortgage
                             Backed Securities Program, "B4", GNMA, 6.35%, 2029                            50,000          50,107
                             Pomona, CA, Single Family Mortgage Rev., GNMA, ETM, 7.375%, 2010 (c)       1,265,000       1,357,206
                             Pomona, CA, Single Family Mortgage Rev., GNMA, ETM, 7.5%, 2023 (c)         2,000,000       2,604,800
                                                                                                                     ------------
                                                                                                                     $  4,047,914
- ---------------------------------------------------------------------------------------------------------------------------------
Single Family Housing -
State - 0.8%                 California Housing Finance Agency Rev., Home Mortgage, FSA, 0%, 2019     $ 2,885,000    $  1,257,715
                             California Housing Finance Agency Rev., Home Mortgage, MBIA, 0%, 2028      5,225,000       1,664,423
                                                                                                                     ------------
                                                                                                                     $  2,922,138
- ---------------------------------------------------------------------------------------------------------------------------------
Solid Waste Revenue - 0.9%   California Pollution Control Financing Authority, Solid Waste
                             Disposal Rev. (West County Resource Recovery), "A", 5.125%, 2014         $ 1,000,000    $  1,012,520
                             South Bayside Waste Management Authority, California Solid Waste
                             System Rev., AMBAC, 5.75%, 2020                                            2,100,000       2,251,620
                                                                                                                     ------------
                                                                                                                     $  3,264,140
- ---------------------------------------------------------------------------------------------------------------------------------
State & Agency -
Other - 2.8%                 Grossmont, CA, Union High School District, MBIA, 0%, 2006                $ 6,000,000    $  5,874,120
                             Pasadena CA, COP, Old Pasadena Parking Facilities Project,
                             6.25%, 2018                                                                2,995,000       3,338,407
                             Sacramento County, CA, COP, Capital Projects, AMBAC, 5.75%, 2018           1,500,000       1,623,765
                                                                                                                     ------------
                                                                                                                     $ 10,836,292
- ---------------------------------------------------------------------------------------------------------------------------------
State & Local
Agencies - 13.5%             Banning, CA, COP, Water Systems Improvement Project, AMBAC, 8%, 2019     $   925,000    $  1,148,045
                             California Public Works Board Lease Rev., Department of Corrections
                             State Prison, "A", 7.4%, 2010                                              5,000,000       5,688,850
                             California Public Works Board, Department of Justice, "D",
                             5.25%, 2020                                                                1,565,000       1,644,252
                             California State Department of Water Resources Power Supply,
                             Rev, "C", 5.25%, 2028                                                      2,500,000       2,616,850
                             Fortuna & Susanville, CA, COP, "B", 7.375%, 2017                             660,000         670,190
                             Golden State, CA, Tobacco Securitization Corp., Tobacco Settlement
                             Rev., "A", FSA, 0% to 2010, 4.55% to 2022                                  3,000,000       2,423,550
                             Golden State, CA, Tobacco Securitization Corp., Tobacco Settlement
                             Rev., Enhanced, "A", 5%, 2045                                              3,000,000       3,046,770
                             Golden State, CA, Tobacco Securitization Corp., Tobacco Settlement
                             Rev., Enhanced, "B", 5.5%, 2013 (c)                                        7,000,000       7,670,180
                             Golden State, CA, Tobacco Securitization Corp., Tobacco Settlement
                             Rev., Enhanced, "B", 5.625%, 2013 (c)                                      5,000,000       5,517,350
                             Los Angeles, CA, COP, Antelope Valley Courthouse, "A", AMBAC,
                             5.25%, 2027                                                                3,000,000       3,136,050
                             Los Angeles, CA, COP, Real Property Program, AMBAC, 5.3%, 2027             3,000,000       3,181,260
                             Pomona, CA, Public Financing Authority Rev., "P", 6.25%, 2010              4,020,000       4,304,737
                             Sacramento, CA, City Financing Authority Rev., Capital Improvement,
                             5.5%, 2010 (c)                                                             1,635,000       1,769,904
                             Sacramento, CA, City Financing Authority Rev., City Hall &
                             Redevelopment Projects, "A", FSA, 5%, 2032                                 2,000,000       2,145,940
                             Salinas, CA, COP, Capital Improvement Projects, "A", 5.7%, 2007 (c)        2,200,000       2,311,408
                             San Francisco, CA, City & County, COP, (San Bruno Jail No 3),
                             AMBAC, 5.25%, 2033                                                         3,930,000       4,113,610
                                                                                                                     ------------
                                                                                                                     $ 51,388,946
- ---------------------------------------------------------------------------------------------------------------------------------
Tax - Other - 2.4%           Irvine, CA, School District Special Tax Rev., Community Facilities
                             District No. 86-1, AMBAC, 5.8%, 2020                                     $ 3,500,000    $  3,679,445
                             Santa Cruz County, CA, Redevelopment Agency Tax Allocation (Oak/
                             Soquel Community), 5.6%, 2017                                              1,455,000       1,524,418
                             Virgin Islands Public Finance Authority Rev., "A", 5.5%, 2022              2,000,000       2,072,620
                             Virgin Islands Public Finance Authority Rev., "E", 5.875%, 2018            1,600,000       1,684,896
                                                                                                                     ------------
                                                                                                                     $  8,961,379
- ---------------------------------------------------------------------------------------------------------------------------------
Tax Assessment - 7.4%        Brea, CA, Public Finance Authority Rev., MBIA, 0%, 2006                  $ 2,415,000    $  2,388,217
                             Duarte, CA, Redevelopment Agency Tax Allocation, Davis Addition
                             Project Area, 6.7%, 2014                                                     605,000         637,247
                             Fontana, CA, Redevelopment Agency Tax Allocation, Jurupa Hills
                             Redevelopment Project, "A", 5.5%, 2027                                     3,350,000       3,440,718
                             Huntington Park, CA, Public Financing Rev. Wastewater Systems
                             Project, "A", 6.2%, 2025                                                   2,000,000       2,045,160
                             La Mirada, CA, Redevelopment Agency, Special Tax Rev., Community
                             Facilities District No. 89-1, 5.7%, 2020                                   1,500,000       1,524,720
                             Modesto, CA, Irrigation District, COP, Refunding & Capital
                             Improvements, "B", 5.3%, 2022                                              1,720,000       1,721,995
                             Modesto, CA, Public Financing Authority (John Thurman Field
                             Renovation), 6.125%, 2016                                                  1,255,000       1,295,662
                             Orange County, CA, Community Facilities District, Special Tax
                             (Rancho Santa Margarita), "A", 5.55%, 2017                                 1,000,000       1,041,270
                             Poway, CA, Community Facilities District, Special Tax (Parkway
                             Business Center), 6.5%, 2010                                                 715,000         763,677
                             Poway, CA, Community Facilities District, Special Tax (Parkway
                             Business Center), 6.75%, 2015                                                775,000         832,621
                             Riverside County, CA, Public Financing Authority, Tax Allocation
                             Rev., "A", 5.25%, 2006 (c)                                                   892,500         917,990
                             Riverside County, CA, Public Financing Authority, Tax Allocation
                             Rev., "A", 5.25%, 2006 (c)                                                 1,655,000       1,702,267
                             Riverside County, CA, Public Financing Authority, Tax Allocation
                             Rev., "A", 5.25%, 2016                                                       572,500         587,860
                             Riverside County, CA, Public Financing Authority, Tax Allocation
                             Rev., XLCA, 5%, 2037                                                       3,000,000       3,066,600
                             Riverside County, CA, Redevelopment Agency, Tax Allocation, "A",
                             XLCA, 5%, 2037                                                             2,000,000       2,051,440
                             San Diego, CA, Redevelopment Agency, Tax Allocation (Centre City),
                             "B", AMBAC, 5.3%, 2020                                                     1,250,000       1,334,900
                             San Jose, CA, Redevelopment Agency, Tax Allocation Redevelopment
                             Project, FGIC, 4.9%, 2033                                                  2,675,000       2,744,309
                                                                                                                     ------------
                                                                                                                     $ 28,096,653
- ---------------------------------------------------------------------------------------------------------------------------------
Tobacco - 2.2%               California County, CA, Tobacco Asset Baked L.A. County, "A", 0%, 2041    $ 2,500,000    $  1,939,350
                             Children's Trust Fund, Tobacco Settlement Rev., Puerto Rico, "A",
                             0%, 2050                                                                   2,000,000         130,800
                             Children's Trust Fund, Tobacco Settlement Rev., Puerto Rico, "B",
                             0%, 2055                                                                   2,000,000          69,300
                             Golden State, CA, Tobacco Securitization Corp., Tobacco Settlement
                             "A-1", 6.75%, 2039                                                         2,645,000       2,974,593
                             Golden State, CA, Tobacco Securitization Corp., Tobacco Settlement,
                             "A-1", 6.25%, 2033                                                         2,935,000       3,197,389
                                                                                                                     ------------
                                                                                                                     $  8,311,432
- ---------------------------------------------------------------------------------------------------------------------------------
Toll Roads - 0.7%            Foothill/Eastern Corridor Agency, California Toll Road Rev., Capital
                             Appreciation, "A", 7.1%, 2010 (c)                                        $ 2,500,000    $  2,849,950
- ---------------------------------------------------------------------------------------------------------------------------------
Transportation - Special     Alameda Corridor Transportation Authority, California Rev., Capital
Tax - 0.6%                   Appreciation, "A", AMBAC, 0%, 2030                                       $ 8,000,000    $  2,468,240
- ---------------------------------------------------------------------------------------------------------------------------------
Universities - Colleges -    California Educational Facilities Authority Rev. (Dominican
7.1%                         University), 5%, 2036                                                    $ 1,150,000    $  1,126,942
                             California Educational Facilities Authority Rev. (Fresno Pacific
                             University), "A", 6.75%, 2019                                              2,000,000       2,162,800
                             California Educational Facilities Authority Rev. (L.A. College of
                             Chiropractic), 5.6%, 2017                                                  2,100,000       2,029,524
                             California Educational Facilities Authority Rev. (Lutheran
                             University), "C", 5%, 2029                                                 2,500,000       2,524,100
                             California Educational Facilities Authority Rev. (Pomona College),
                             "B", 5.875%, 2009 (c)                                                      2,000,000       2,158,820
                             California Educational Facilities Authority Rev. (Santa Clara
                             University), "A", MBIA, 5%, 2027                                           1,340,000       1,384,300
                             California Educational Facilities Authority Rev. (University of Los
                             Angeles), "A", 5%, 2029                                                    1,500,000       1,507,785
                             California Educational Facilities Authority Rev., Pooled College &
                             University Projects, "B", 6.3%, 2007 (c)                                   1,000,000       1,045,800
                             California Educational Facilities Authority Rev., Pooled College &
                             University Projects, "B", 6.625%, 2020                                     1,000,000       1,116,980
                             California Statewide Communities, Notre Dame De Namur University,
                             6.625%, 2033                                                               1,000,000       1,021,440
                             Foothill-De Anza, CA, Community College District, Election of 1999,
                             "B", FGIC, 0%, 2025                                                        1,500,000         612,450
                             Long Beach, CA, Industrial Development Rev. (CSU Foundation), "A",
                             5.25%, 2023                                                                1,450,000       1,466,385
                             Santa Monica, CA, Community College District, 2002 Election, "C",
                             MBIA, 0%, 2027                                                             2,000,000         695,140
                             University of California Rev., RITES, MBIA, 6.985%, 2016 (z)(v)            5,705,000       6,052,663
                             University of California, COP, San Diego Campus Projects, "A",
                             5.25%, 2032                                                                1,840,000       1,914,060
                                                                                                                     ------------
                                                                                                                     $ 26,819,189
- ---------------------------------------------------------------------------------------------------------------------------------
Universities - Secondary     California Statewide Communities Development Authority Rev., Aspire
Schools - 1.1%               Public Schools, (Oakland Project), "A", 7.25%, 2031                      $   975,000    $  1,004,309
                             California Statewide Communities, Development Authority Rev.
                             (Escondido Charter High School), 7.5%, 2036                                1,000,000       1,059,680
                             Los Angeles, CA, COP, 5.7%, 2018                                           1,900,000       1,990,079
                                                                                                                     ------------
                                                                                                                     $  4,054,068
- ---------------------------------------------------------------------------------------------------------------------------------
Utilities - Investor         California Pollution Control Financing Authority, Pollution Control
Owned - 1.6%                 Rev. (Pacific Gas & Electric Co.), MBIA, 5.35%, 2016                     $ 3,500,000    $  3,728,165
                             Chula Vista, CA, Industrial Development Rev. (San Diego Gas), "B",
                             5%, 2027                                                                   2,500,000       2,539,600
                                                                                                                     ------------
                                                                                                                     $  6,267,765
- ---------------------------------------------------------------------------------------------------------------------------------
Utilities - Municipal
Owned - 3.0%                 Glendale, CA, Electric Works Rev., MBIA, 5.75%, 2019                     $ 1,420,000    $  1,541,481
                             Glendale, CA, Electric Works Rev., MBIA, 5.75%, 2020                       1,160,000       1,250,178
                             Northern California Power Agency Public Power Rev., 5.85%, 2010              880,000         934,375
                             Sacramento, CA, Power Authority, Cogeneration Project Rev., MBIA,
                             5.875%, 2006 (c)                                                           5,500,000       5,642,065
                             Virgin Islands Water & Power Authority Rev., 5.5%, 2017                      800,000         815,040
                             Virgin Islands Water & Power Authority Rev., 5.3%, 2018                      250,000         249,533
                             Virgin Islands Water & Power Authority Rev., "A", 5.125%, 2013             1,000,000       1,001,240
                                                                                                                     ------------
                                                                                                                     $ 11,433,912
- ---------------------------------------------------------------------------------------------------------------------------------
Water & Sewer Utility        California Department of Water Resources, Central Valley Project
Revenue - 7.0%               Rev., "X", FGIC, 5%, 2029                                                $ 2,000,000    $  2,059,160
                             California Department of Water Resources, Water Systems Rev.,
                             7%, 2012                                                                   1,090,000       1,286,320
                             California Department of Water Resources, Water Systems Rev.,
                             ETM, 7%, 2012 (c)                                                            405,000         480,556
                             Castaic Lake Water Agency, California Rev., Water Systems
                             Improvement Project, AMBAC, 5.125%, 2030                                   1,725,000       1,787,980
                             Culver City, CA, Wastewater Facilities Rev, "A", FGIC, 5.6%, 2019          1,000,000       1,075,550
                             El Monte, CA, Water Authority Rev., Water Systems Project, AMBAC,
                             6%, 2019                                                                   1,065,000       1,175,888
                             Fairfield-Suisun, CA, Sewer District Rev., "A", MBIA, 0%, 2006             2,080,000       2,074,821
                             Livermore Amador Valley Water Management Rev., "A", AMBAC, 5%, 2031        4,875,000       5,000,531
                             Mojave, CA, Water Agency, Improvement District (M  - Morongo Basin),
                             FGIC, 5.75%, 2006 (c)                                                      2,625,000       2,701,808
                             Southern California Metropolitan Water District Rev., RITES,
                             7.542%, 2018 (z)(v)                                                        5,000,000       6,313,500
                             West Sacramento, CA, Financing Authority Rev., Water Systems
                             Improvement Project, FGIC, 5%, 2032                                        2,750,000       2,840,530
                                                                                                                     ------------
                                                                                                                     $ 26,796,644
- ---------------------------------------------------------------------------------------------------------------------------------
  TOTAL MUNICIPAL BONDS (IDENTIFIED COST, $351,522,967)                                                              $371,201,756
- ---------------------------------------------------------------------------------------------------------------------------------
Floating Rate Demand Notes - 1.3%
- ---------------------------------------------------------------------------------------------------------------------------------
                             Bay Area Toll Authority, California Toll Bridge Rev., "A", 3.05%,
                             due 4/06/06                                                              $   100,000    $    100,000
                             Orange County, CA, 3.06%, due 4/03/06                                        100,000         100,000
                             State of California, Department of Water Resources, Power Supply
                             Rev., "C-2", 3.17%, due 4/06/06                                            3,500,000       3,500,000
                             State of California, Department of Water Resources, Power Supply
                             Rev., "C-3", 3.17%, due 4/06/06                                            1,000,000       1,000,000
- ---------------------------------------------------------------------------------------------------------------------------------
  TOTAL FLOATING RATE DEMAND NOTES, AT IDENTIFIED COST                                                               $  4,700,000
- ---------------------------------------------------------------------------------------------------------------------------------
  TOTAL INVESTMENTS (IDENTIFIED COST, $356,222,967)                                                                  $375,901,756
- ---------------------------------------------------------------------------------------------------------------------------------
Other Assets, Less Liabilities  - 1.0%                                                                                  3,972,533
- ---------------------------------------------------------------------------------------------------------------------------------
  NET ASSETS - 100.0%                                                                                                $379,874,289
- ---------------------------------------------------------------------------------------------------------------------------------

INTEREST RATE SWAPS


                              NOTIONAL PRINCIPAL                                                                  UNREALIZED
                                  AMOUNT OF               CASH FLOWS PAID                  CASH FLOWS            APPRECIATION
EXPIRATION        CURRENCY        CONTRACT                  BY THE FUND               RECEIVED BY THE FUND      (DEPRECIATION)
- ------------------------------------------------------------------------------------------------------------------------------
                                                                                                    
12/01/07             USD          $9,000,000              Fixed - 3 Year               Floating - 7 day            $123,600
                                                      BMA Swap Index (2.795%)           BMA Swap Index
- ------------------------------------------------------------------------------------------------------------------------------
 7/13/16             USD           3,000,000              Fixed - 10 Year              Floating - 7 Day              63,072
                                                      BMA Swap Index (3.742%)           BMA Swap Index
- ------------------------------------------------------------------------------------------------------------------------------
 8/02/21             USD           3,000,000              Fixed - 15 Year              Floating - 7 Day              47,944
                                                      BMA Swap Index (4.011%)           BMA Swap Index
- ------------------------------------------------------------------------------------------------------------------------------
 9/07/26             USD           3,000,000             Floating - 3 Month             Fixed - 20 Year             (80,725)
                                                          LIBOR Swap Index         LIBOR Swap Index (5.268%)
- ------------------------------------------------------------------------------------------------------------------------------
 9/13/26             USD           3,750,000             Floating - 3 Month             Fixed - 20 Year             (58,111)
                                                          LIBOR Swap Index         LIBOR Swap Index (5.363%)
- ------------------------------------------------------------------------------------------------------------------------------
 7/11/36             USD           3,000,000             Floating - 7 day               Fixed - 30 Year             (96,827)
                                                          BMA Swap Index            BMA Swap Index (4.127%)
- ------------------------------------------------------------------------------------------------------------------------------
                                                                                                                   $ (1,047)
                                                                                                                   ========

At March 31, 2006, the fund had sufficient cash and/or securities to cover any commitments under these derivative contracts.

SEE PORTFOLIO FOOTNOTES AND NOTES TO FINANCIAL STATEMENTS




PORTFOLIO OF INVESTMENTS - 3/31/06                      MFS(R) FLORIDA MUNICIPAL BOND FUND

The Portfolio of Investments is a complete list of all securities owned by your
fund. It is categorized by broad-based asset classes.


Municipal Bonds - 97.5%
- ---------------------------------------------------------------------------------------------------------------------------------
                             ISSUER                                                                   SHARES/PAR      VALUE ($)
- ---------------------------------------------------------------------------------------------------------------------------------
                                                                                                               
Airport & Port
Revenue - 5.2%               Greater Orlando Aviation Authority Rev., "A", FGIC, 5.25%, 2018          $ 1,000,000    $  1,038,820
                             Hillsborough County, FL, Aviation Authority Rev. (Tampa International
                             Airport), "A", FGIC, 5.875%, 2015                                            750,000         771,630
                             Lee County, FL, Airport Rev., "A", FSA, 5.875%, 2018                       1,000,000       1,078,300
                             Miami-Dade County, FL, Aviation Rev., "C", MBIA, 5.25%, 2018                 500,000         516,310
                             Miami-Dade County, FL, Aviation Revenue, "A", CIFG, 5%, 2038                 500,000         509,455
                             Pensacola, FL, Airport Rev., "B", MBIA, 5.625%, 2014                         500,000         520,980
                                                                                                                     ------------
                                                                                                                     $  4,435,495
- ---------------------------------------------------------------------------------------------------------------------------------
Chemicals - 0.3%             Red River Authority, TX, Pollution Control Rev. (Celanese Project),
                             6.7%, 2030                                                               $   200,000    $    211,794
- ---------------------------------------------------------------------------------------------------------------------------------
General Obligations -
General Purpose - 7.0%       Commonwealth of Puerto Rico, RITES, MBIA, 7.599%, 2019 (z)(v)            $ 1,000,000    $  1,154,480
                             Miami-Dade County, FL, Educational Facilities Authority, "A", AMBAC,
                             5.5%, 2018                                                                 1,400,000       1,492,400
                             State of Florida, RITES, 6.019%, 2017 (z)(v)                               3,000,000       3,288,960
                                                                                                                     ------------
                                                                                                                     $  5,935,840
- ---------------------------------------------------------------------------------------------------------------------------------
General Obligations -
Schools - 9.3%               Florida Board of Education, Capital Outlay, 9.125%, 2014                 $ 2,600,000    $  3,190,330
                             Florida Board of Education, Capital Outlay, ETM, 9.125%, 2014 (c)            400,000         533,648
                             Florida State Board of Education, Public Education, "J", 5%, 2032          1,000,000       1,031,690
                             Martin County, FL, School Board Certificate, MBIA, 5%, 2031                1,090,000       1,121,610
                             Osceola County, FL, School Board Certificate, "A", AMBAC, 5.25%, 2027      1,950,000       2,066,649
                                                                                                                     ------------
                                                                                                                     $  7,943,927
- ---------------------------------------------------------------------------------------------------------------------------------
Healthcare Revenue -         Birmingham, AL, Baptist Medical Center, Special Care Facilities Rev.
Hospitals - 17.0%            (Baptist Health Systems, Inc.), "A", 5%, 2030                            $   500,000    $    488,215
                             Brevard County, FL, Health Facilities Rev., Health First Inc., 5%, 2034      500,000         507,065
                             Citrus County, FL, Hospital Development Authority Rev. (Citrus Memorial
                             Hospital), 6.25%, 2023                                                       480,000         511,075
                             Coral Gables, FL, Health Facilities Authority, Hospital Rev. (Baptist
                             Health South Florida), 5%, 2029                                              535,000         552,687
                             Denver, CO, Health & Hospital Authority Rev., "A", 6%, 2023                  250,000         264,812
                             Highlands County, FL, Health Facilities Authority Rev. (Adventist
                             Health Systems), 5.25%, 2013                                                 500,000         516,065
                             Hillsborough County, FL, Industrial Development Rev. (University
                             Community Hospital), MBIA, 6.5%, 2019                                      1,000,000       1,200,510
                             Indiana Health Facilities Financing Authority, Hospital Rev. (Munster
                             Medical Research Foundation, Inc.), 6.375%, 2031                             500,000         524,985
                             Jacksonville, FL, Health Facilities, Ascencion Health, "A", 5.25%, 2032    1,000,000       1,036,740
                             Lakeland, FL, Hospital Systems Rev. (Lakeland Regional Health Systems),
                             5.5%, 2032                                                                 1,000,000       1,052,600
                             Leesburg, FL, Hospital Rev. (Leesburg Regional Medical Center),
                             5.5%, 2032                                                                   750,000         770,227
                             Marion County, FL, Hospital District Rev., Refunding & Improvement,
                             Health Systems (Monroe Regional Health System), 5.5%, 2014                   500,000         522,230
                             Marshall County, AL, Health Care Rev., "A", 6.25%, 2022                      500,000         532,250
                             Martin County, FL, Health Facilities Rev. (Martin Memorial Medical
                             Center), "B", 5.75%, 2022                                                    500,000         529,960
                             Miami Beach, FL, Health Facilities Rev. (Mount Sinai Medical Center),
                             "A", 6.7%, 2019                                                              250,000         274,527
                             Miami, FL, Health Facilities Authority Rev. (Catholic Health East),
                             "B", 5.25%, 2028                                                             650,000         669,266
                             New Hampshire Health & Educational Facilities Authority Rev. (Exeter
                             Hospital), 6%, 2024                                                          500,000         546,405
                             Orange County, FL, Health Facilities Authority Hospital Rev. (Orlando
                             Regional Healthcare), 5.75%, 2012 (c)                                      1,000,000       1,107,470
                             Rhode Island Health & Education Building Rev., Hospital Financing
                             (Lifespan Obligated Group), 6.5%, 2012 (c)                                   500,000         572,580
                             South Dakota Health & Education Facilities Authority Rev. (Prairie
                             Lakes Health Care System), 5.625%, 2032                                      500,000         514,085
                             Tallahassee, FL, Health Facilities Rev. (Tallahassee Memorial
                             Healthcare), 6.25%, 2020                                                     300,000         317,166
                             Tallahassee, FL, Health Facilities Rev. (Tallahassee Memorial Regional
                             Medical Center), MBIA, 6.625%, 2013                                        1,000,000       1,011,620
                             Wisconsin Health & Educational Facilities Authority Rev. (Marshfield
                             Clinic), "A", 5.375%, 2034                                                   500,000         512,075
                                                                                                                     ------------
                                                                                                                     $ 14,534,615
- ---------------------------------------------------------------------------------------------------------------------------------
Healthcare Revenue - Long    Orange County, FL, Health Facilities Authority Rev. (Orlando Lutheran),
Term Care - 0.3%             5.7%, 2026                                                               $   250,000    $    248,192
- ---------------------------------------------------------------------------------------------------------------------------------
Human Services - 0.4%        Orange County, FL, Health Facilities Authority Rev. (GF/Orlando
                             Healthcare Facilities), 8.875%, 2021                                     $   300,000    $    334,161
- ---------------------------------------------------------------------------------------------------------------------------------
Industrial Revenue -         Brazos River, TX, Brazoria County Environmental Rev. (Dow Chemical,
Chemicals - 0.7%             Co.), "A", 6.625%, 2033                                                  $   500,000    $    555,470
- ---------------------------------------------------------------------------------------------------------------------------------
Industrial Revenue -
Environmental Services -     California Pollution Control Financing Authority, Solid Waste Disposal
1.0%                         Rev. (Waste Management, Inc.), "B", 5%, 2027                             $   500,000    $    501,950
                             Nevada Department of Business Rev. (Republic Services, Inc.),
                             5.625%, 2026                                                                 300,000         322,803
                                                                                                                     ------------
                                                                                                                     $    824,753
- ---------------------------------------------------------------------------------------------------------------------------------
Industrial Revenue -
Other - 1.0%                 Madison County, FL, Rev. (Twin Oaks Project), "A", 6%, 2025              $   150,000    $    153,413
                             Park Creek Metropolitan District, CO, Rev., Custodial Receipts, CR-2,
                             7.875%, 2032 (a)                                                             160,000         176,827
                             Tooele County, UT, Hazardous Waste Treatment Rev. (Union Pacific
                             Corp.), 5.7%, 2026                                                           500,000         523,740
                                                                                                                     ------------
                                                                                                                     $    853,980
- ---------------------------------------------------------------------------------------------------------------------------------
Industrial Revenue -         Delta County, MI, Economic Development Corp., Environmental
Paper - 0.7%                 Improvements Rev. (Mead Westvaco Escanaba), "A", 6.25%, 2012 (c)         $   500,000    $    565,145
- ---------------------------------------------------------------------------------------------------------------------------------
Miscellaneous Revenue -
Entertainment &              Palm Beach County, FL, Industrial Development Rev. (South Florida Fair
Tourism - 1.2%               Project), MBIA, 5.5%, 2020                                               $ 1,000,000    $  1,058,420
- ---------------------------------------------------------------------------------------------------------------------------------
Miscellaneous Revenue -
Other - 0.2%                 Summit County, OH, Port Authority Building (Seville), "A", 5.1%, 2025    $   200,000    $    202,754
- ---------------------------------------------------------------------------------------------------------------------------------
Multi-Family Housing         Bay County, FL, Housing Finance Authority, Multi-family Rev. (Andrews
Revenue - 3.3%               Place II Apartments), FSA, 5%, 2035                                      $   500,000    $    502,475
                             Collier County, FL, Housing Finance Authority Rev. (Goodlette Arms
                             Housing Project), "A", FNMA, 4.9%, 2032                                      500,000         523,815
                             Florida Housing Finance Corp., Housing Rev. (Augustine Club
                             Apartments), "D", MBIA, 5.5%, 2020                                           500,000         520,445
                             Florida Housing Finance Corp., Housing Rev. (Crossing At University
                             Apartments), AMBAC, 5.1%, 2018                                             1,115,000       1,130,588
                             Palm Beach County, FL, Housing Finance Rev. (Westlake Apartments
                             Project), Phase II, FSA, 4.3%, 2012                                          140,000         141,674
                                                                                                                     ------------
                                                                                                                     $  2,818,997
- ---------------------------------------------------------------------------------------------------------------------------------
Sales & Excise Tax
Revenue - 4.9%               Escambia County, FL, Sales Tax Rev., AMBAC, 5%, 2022                     $ 1,160,000    $  1,213,789
                             Hillsborough County, FL, Court Facilities Rev., 3%, 2006                     300,000         298,713
                             Miami-Dade County, FL, Special Obligations, Capital Appreciation, "A",
                             MBIA, 0%, 2032                                                             2,000,000         515,800
                             Pasco County, FL, Sales Tax Rev., Half Central, AMBAC, 5%, 2023            1,000,000       1,045,860
                             Volusia County, FL, Tourist Development Tax Rev., FSA, 5%, 2034              815,000         840,363
                             Wyandotte County-Kansas City, KS, Sales Tax 2nd Lien Area B, 5%, 2020        250,000         255,128
                                                                                                                     ------------
                                                                                                                     $  4,169,653
- ---------------------------------------------------------------------------------------------------------------------------------
Single Family Housing -
Local - 3.5%                 Brevard County, FL, Housing Finance Authority, "B", GNMA, 6.5%, 2022     $    39,000    $     39,304
                             Lee County, FL, Housing Finance Authority Rev., "A", GNMA, 7%, 2031           95,000          96,019
                             Lee County, FL, Housing Finance Authority, Multi-County Program, "A",
                             GNMA, 7.2%, 2033                                                              35,000          35,429
                             Manatee County, FL, Housing Finance Mortgage Rev., Single Family,
                             Subordinated Series 3, GNMA, 5.3%, 2028                                       70,000          70,955
                             Miami-Dade County, FL, Housing Finance Authority Rev. (Home Ownership
                             Mortgage), "A", GNMA, 5.2%, 2031                                             485,000         492,314
                             Palm Beach County, FL, Single Family Rev., "B", GNMA, 5.5%, 2022             235,000         238,133
                             Pinellas County, FL, Housing Finance Authority Rev., "A-1", GNMA,
                             4.85%, 2037                                                                1,000,000         984,210
                             Pinellas County, FL, Housing Finance Authority Rev., Multi-County
                             Program, "A", GNMA, 5.45%, 2034                                              595,000         611,000
                             Pinellas County, FL, Housing Finance Authority Rev., Multi-County
                             Program, "B", GNMA, 6.2%, 2031                                               380,000         386,992
                                                                                                                     ------------
                                                                                                                     $  2,954,356
- ---------------------------------------------------------------------------------------------------------------------------------
Single Family Housing -      Florida Housing Finance Corp. Rev., Homeowner Mortgage, "1", GNMA,
State - 2.7%                 4.8%, 2031                                                               $ 1,000,000    $    983,260
                             Florida Housing Finance Corp. Rev., Homeowner Mortgage, "4", FSA,
                             5.85%, 2031                                                                  400,000         408,392
                             Florida Housing Finance Corp. Rev., Homeowner Mortgage, "5", 5%, 2034        920,000         938,492
                                                                                                                     ------------
                                                                                                                     $  2,330,144
- ---------------------------------------------------------------------------------------------------------------------------------
Solid Waste Revenue - 0.3%   Delaware County, PA, Industrial Development Authority, Resource
                             Recovery Facilities Rev. (American Ref-Fuel Co.), "A", 6.2%, 2019        $   200,000    $    209,036
- ---------------------------------------------------------------------------------------------------------------------------------
State & Local Agencies -
3.7%                         Florida Municipal Loan Council Rev., "B", MBIA, 5.625%, 2009 (c)         $ 1,000,000    $  1,074,340
                             Florida Municipal Loan Council Rev., "C", MBIA, 5.25%, 2022                1,000,000       1,072,100
                             St. Augustine, FL, Capital Improvement Rev, AMBAC, 5%, 2029                1,000,000       1,040,680
                                                                                                                     ------------
                                                                                                                     $  3,187,120
- ---------------------------------------------------------------------------------------------------------------------------------
Tax - Other - 2.0%           Orange County, FL, Tourist Development Tax Rev., Subordinated, AMBAC,
                             5.25%, 2027                                                              $ 1,500,000    $  1,585,065
                             Virgin Islands Public Finance Authority Rev., "A", 5.25%, 2024               130,000         135,049
                                                                                                                     ------------
                                                                                                                     $  1,720,114
- ---------------------------------------------------------------------------------------------------------------------------------
Tax Assessment - 4.1%        Arbor Greene, FL, Community Development District, 5.75%, 2006            $    46,000    $     46,000
                             Arborwood Community Development District, Florida Capital Improvement
                             Rev. (Master Infrastructure Projects), "B", 5.1%, 2014                       200,000         197,798
                             Concord Station Community Development District, FL, Capital Improvement
                             Rev., 5%, 2015                                                               185,000         183,028
                             Concorde Estates Community Development District, FL, Capital
                             Improvement Rev., "B", 5%, 2011                                              235,000         234,497
                             Durbin Crossing Community Development District, "B-1", 4.875%, 2010          250,000         249,012
                             Fishawk Community Development District II, "B", 5%, 2007                     100,000          99,567
                             Greyhawk Landing Community Development, FL, Special Assessment Rev.,
                             "B", 6.25%, 2009                                                             100,000         101,077
                             Heritage Harbour South Community, Development District, FL, Rev.,
                             Capital Improvement, "B", 5.4%, 2008                                          25,000          24,827
                             Killarney, FL, Community Development District, "B", 5.125%, 2009             165,000         164,535
                             Lakes by the Bay South Community Development District, FL, Special
                             Assessment, "B", 5.3%, 2009                                                  180,000         179,690
                             Middle Village Community Development District, FL, Special Assessment,
                             "B", 5%, 2009                                                                 95,000          94,908
                             Middle Village, FL, Community Development District Rev.,
                             "A", 5.8%, 2022                                                               95,000          97,304
                             New Port Tampa Bay Community Development District, FL, Special
                             Assessment, "B", 5.3%, 2012                                                  200,000         198,724
                             North Springs Improvement District, FL, Special Assessment Rev.
                             (Parkland Golf Country Club), "B-2", 5.125%, 2015                            250,000         247,825
                             Old Palm Community Development District, FL, Special Assessment (Palm
                             Beach Gardens), "B", 5.375%, 2014                                            155,000         155,888
                             Palm Glades Community Development District, FL, Special Assessment,
                             "A", 5.3%, 2036                                                              200,000         200,732
                             Panther Trace, FL, Community Development District Rev., 5.4%, 2008            10,000           9,938
                             Panther Trace, FL, Community Development District Rev., "B", 5%, 2010        200,000         198,862
                             Parkway Center, FL, Community Development District Rev.,
                             "B", 5.625%, 2014                                                            100,000         101,130
                             Renaissance Community Development, FL, "B", 6.25%, 2008                      100,000         100,687
                             Tuscany Reserve Community Development District, FL, "B", 5.25%, 2016         250,000         250,453
                             Villa Portofino West Community Development District, FL, Special
                             Assessment, "A", 5.35%, 2036                                                 200,000         200,948
                             Watergrass Community Development District, FL, Special Assessment
                             Rev., "B", 4.875%, 2010                                                      200,000         198,570
                                                                                                                     ------------
                                                                                                                     $  3,536,000
- ---------------------------------------------------------------------------------------------------------------------------------
Tobacco - 0.6%               Louisiana Tobacco Settlement Authority, "B", 5.875%, 2039                $   250,000    $    263,573
                             South Carolina Tobacco Settlement Authority, "B", 6.375%, 2030               250,000         280,133
                                                                                                                     ------------
                                                                                                                     $    543,706
- ---------------------------------------------------------------------------------------------------------------------------------
Toll Roads - 1.2%            Lee County, FL, Transportation Facilities Rev., "A", AMBAC, 5%, 2027     $ 1,000,000    $  1,043,560
- ---------------------------------------------------------------------------------------------------------------------------------
Transportation - Special     Commonwealth of Puerto Rico, Highway & Transportation, ROLS, Railroad
Tax - 4.3%                   II R 227 1, MBIA, 7.763%, 2020 (z)(v)                                    $ 2,500,000    $  3,185,200
                             St. Johns County, FL, Rev. Transportation Improvement, AMBAC, 5%, 2027       500,000         520,255
                                                                                                                     ------------
                                                                                                                     $  3,705,455
- ---------------------------------------------------------------------------------------------------------------------------------
Universities -               Florida Board Regents, Housing Rev. (University of Central Florida),
Dormitories - 3.5%           FGIC, 5.25%, 2020                                                        $ 1,185,000    $  1,270,877
                             Florida Board Regents, Housing Rev., MBIA, 5.3%, 2020                        610,000         653,401
                             Florida Finance Authority, Capital Loan Projects, "F", MBIA,
                             5.125%, 2021                                                               1,000,000       1,025,380
                                                                                                                     ------------
                                                                                                                     $  2,949,658
- ---------------------------------------------------------------------------------------------------------------------------------
Utilities - Investor         Brazos River Authority, TX, Pollution Control Rev. (Texas Utility Co.),
Owned - 0.5%                 "C", 6.75%, 2038                                                         $   215,000    $    241,359
                             Port Morrow, OR, Pollution Control Rev. (Portland General Electric),
                             5.2%, 2033                                                                   200,000         206,576
                                                                                                                     ------------
                                                                                                                     $    447,935
- ---------------------------------------------------------------------------------------------------------------------------------
Utilities - Municipal
Owned - 3.1%                 Palm Coast, FL, Utility Systems Rev., MBIA, 5%, 2024                     $   250,000    $    261,265
                             Port St. Lucie, FL, Utility Rev., Capital Appreciation, "A", FGIC,
                             0%, 2006 (c)                                                               1,405,000         568,154
                             Port St. Lucie, FL, Utility Rev., MBIA, 5%, 2022                           1,000,000       1,042,670
                             St. Lucie West, FL, Utility Rev., MBIA, 5.25%, 2034                          720,000         768,204
                                                                                                                     ------------
                                                                                                                     $  2,640,293
- ---------------------------------------------------------------------------------------------------------------------------------
Water & Sewer Utility
Revenue - 15.5%              Bay County, FL, Water Systems Rev., AMBAC, 5.625%, 2010 (c)              $ 1,000,000    $  1,085,640
                             Florida Community Services Corp., AMBAC, 5.5%, 2018                        1,125,000       1,209,229
                             Lee County, FL, Industrial Development Authority (Bonita Springs
                             Utilities Project), MBIA, 6.05%, 2015                                      1,000,000       1,021,970
                             Miami Beach, FL, Stormwater Rev., FGIC, 5.25%, 2020                        1,000,000       1,059,640
                             Miami-Dade County, FL, Stormwater Utility Rev., MBIA, 5%, 2028             2,000,000       2,076,240
                             Orlando, FL, Utilities Commission, Water & Electric Rev. "C", 5%, 2027     1,000,000       1,035,830
                             Pinellas County, FL, Sewer Rev., FSA, 5%, 2032                             1,500,000       1,549,155
                             Polk County, FL, Utility Systems Rev., "A", FGIC, 5%, 2030                 1,000,000       1,039,240
                             Polk County, FL, Utility Systems Rev., FGIC, 5%, 2023                      1,000,000       1,045,060
                             Seminole County, FL, Water & Sewer Rev., MBIA, 6%, 2019                      940,000       1,080,088
                             Tohopekaliga Water Authority, Florida Utility System Rev., "A",
                             FSA, 5%, 2024                                                              1,000,000       1,045,060
                                                                                                                     ------------
                                                                                                                     $ 13,247,152
- ---------------------------------------------------------------------------------------------------------------------------------
  TOTAL MUNICIPAL BONDS (IDENTIFIED COST, $79,713,329)                                                               $ 83,207,725
- ---------------------------------------------------------------------------------------------------------------------------------
Floating Rate Demand Notes - 2.1%
- ---------------------------------------------------------------------------------------------------------------------------------
                             ISSUER                                                                    SHARES/PAR     VALUE ($)
- ---------------------------------------------------------------------------------------------------------------------------------
                             Burke County, GA, Development Authority Pollution Control Rev.
                             (Oglethorpe Power Corp.), "A", 3.22%, due 4/05/06                        $ 1,000,000    $  1,000,000
                             Georgia Municipal Electric Authority, 3.05%, due 4/05/06                     100,000         100,000
                             Jefferson County, AL, Sewer Rev., Warrants, "B-4", 3.22%, due 4/06/06        100,000         100,000
                             Lincoln County, WY, Pollution Control Rev. (Exxon Mobile Corp.),
                             3.13%, due 4/03/06                                                           600,000         600,000
- ---------------------------------------------------------------------------------------------------------------------------------
  TOTAL FLOATING RATE DEMAND NOTES, AT IDENTIFIED COST                                                               $  1,800,000
- ---------------------------------------------------------------------------------------------------------------------------------
  TOTAL INVESTMENTS (IDENTIFIED COST, $81,513,329)                                                                   $ 85,007,725
- ---------------------------------------------------------------------------------------------------------------------------------
Other Assets, Less Liabilities - 0.4%                                                                                     364,394
- ---------------------------------------------------------------------------------------------------------------------------------
  NET ASSETS - 100.0%                                                                                                $ 85,372,119
- ---------------------------------------------------------------------------------------------------------------------------------

INTEREST RATE SWAPS


                              NOTIONAL PRINCIPAL                                                                  UNREALIZED
                                  AMOUNT OF               CASH FLOWS PAID                  CASH FLOWS            APPRECIATION
EXPIRATION        CURRENCY        CONTRACT                  BY THE FUND               RECEIVED BY THE FUND      (DEPRECIATION)
- ------------------------------------------------------------------------------------------------------------------------------
                                                                                                     
12/01/07             USD          $2,000,000              Fixed - 3 Year               Floating - 7 day             $27,467
                                                      BMA Swap Index (2.795%)           BMA Swap Index
- ------------------------------------------------------------------------------------------------------------------------------
 6/06/16             USD           1,000,000              Fixed - 10 Year              Floating - 7 Day               5,302
                                                      BMA Swap Index (3.938%)           BMA Swap Index
- ------------------------------------------------------------------------------------------------------------------------------
 6/16/16             USD           1,500,000              Fixed - 10 Year              Floating - 7 Day               3,864
                                                      BMA Swap Index (3.977%)           BMA Swap Index
- ------------------------------------------------------------------------------------------------------------------------------
 7/13/16             USD           1,000,000              Fixed - 10 Year              Floating - 7 Day              21,024
                                                      BMA Swap Index (3.742%)           BMA Swap Index
- ------------------------------------------------------------------------------------------------------------------------------
 8/30/16             USD           1,500,000              Fixed - 10 Year              Floating - 7 Day              11,519
                                                      BMA Swap Index (3.926%)           BMA Swap Index
- ------------------------------------------------------------------------------------------------------------------------------
 6/15/18             USD           1,500,000              Fixed - 12 Year              Floating - 7 Day               7,896
                                                      BMA Swap Index (4.019%)           BMA Swap Index
- ------------------------------------------------------------------------------------------------------------------------------
 8/02/21             USD           1,000,000              Fixed - 15 Year              Floating - 7 Day              15,981
                                                      BMA Swap Index (4.011%)           BMA Swap Index
- ------------------------------------------------------------------------------------------------------------------------------
 9/13/26             USD             850,000            Floating - 3 Month              Fixed - 20 Year             (13,172)
                                                         LIBOR Swap Index          LIBOR Swap Index (5.363%)
- ------------------------------------------------------------------------------------------------------------------------------
                                                                                                                    $79,881
                                                                                                                    =======

At March 31, 2006, the fund had sufficient cash and/or securities to cover any commitments under these derivative contracts.

SEE PORTFOLIO FOOTNOTES AND NOTES TO FINANCIAL STATEMENTS




PORTFOLIO OF INVESTMENTS - 3/31/06                      MFS(R) GEORGIA MUNICIPAL BOND FUND

The Portfolio of Investments is a complete list of all securities owned by your
fund. It is categorized by broad-based asset classes.


Municipal Bonds - 98.1%
- ---------------------------------------------------------------------------------------------------------------------------------
                             ISSUER                                                                   SHARES/PAR      VALUE ($)
- ---------------------------------------------------------------------------------------------------------------------------------
                                                                                                               
Airport & Port
Revenue - 5.6%               Atlanta, GA, Airport Passenger Facilities Rev., "J", FSA, 5%, 2029       $   750,000    $    776,250
                             Atlanta, GA, Airport Passenger Facilities Rev., "J", FSA, 5%, 2034          1,250,000      1,288,287
                             Atlanta, GA, Airport Rev., "B", FSA, 5.25%, 2033                            1,000,000      1,057,430
                             Augusta, GA, Airport Rev., "B", 5.35%, 2028                                   350,000        352,887
                                                                                                                     ------------
                                                                                                                     $  3,474,854
- ---------------------------------------------------------------------------------------------------------------------------------
General Obligations -
General Purpose - 5.1%       Columbia County, GA (Courthouse Detention Center), 5.625%, 2020          $ 1,490,000    $  1,567,063
                             Gilmer County, GA, Building Authority Rev., Courthouse Project,
                             "A", XLCA, 5%, 2029                                                          500,000         520,190
                             Macon Bibb County, GA, Urban Development Rev. (Bibb County Public
                             Facilities Project), 5.5%, 2022                                            1,000,000       1,073,110
                                                                                                                     ------------
                                                                                                                     $  3,160,363
- ---------------------------------------------------------------------------------------------------------------------------------
General Obligations -
Improvement - 2.2%           Puerto Rico Municipal Finance Agency, RITES, FSA, 8.108%, 2016 (z)(v)    $   500,000    $    583,340
                             Suwanee, GA, MBIA, 5.25%, 2032                                               750,000         786,623
                                                                                                                     ------------
                                                                                                                     $  1,369,963
- ---------------------------------------------------------------------------------------------------------------------------------
General Obligations -
Schools - 7.6%               Fayette County, GA, School District Rev., FSA, 0% to 2010,
                             4.9% to 2024                                                             $   575,000    $    465,830
                             Forsyth County, GA, School District, 6%, 2010 (c)                            750,000         823,387
                             Fulton County, GA, School District, 6.375%, 2010                           2,000,000       2,198,880
                             Wilkes County, GA, School District, 5%, 2024                               1,115,000       1,167,951
                                                                                                                     ------------
                                                                                                                     $  4,656,048
- ---------------------------------------------------------------------------------------------------------------------------------
Healthcare Revenue -         Athens Clarke County, GA (United Catholic Health East Issue),
                             5.5%, Hospitals - 9.2% 2032                                              $   500,000    $    522,765
                             Chatham County, GA, Hospital Authority Rev. (Memorial Health Medical
                             Center), "A", 6%, 2017                                                       350,000         375,819
                             Chatham County, GA, Hospital Authority Rev., Hospital Improvement
                             (Memorial Health University), "A", 5.375%, 2026                              200,000         207,870
                             Cobb County, GA, Hospital Authority Revolving, Refunding & Improvement
                             Rev., Anticipation Certificates, AMBAC, 5.25%, 2023                          750,000         803,707
                             Coffee County, GA, Hospital Authority Rev. (Coffee Regional Medical
                             Center, Inc.), 5%, 2026                                                      350,000         345,978
                             Gainesville & Hall County, GA, Hospital Authority Rev. (Northeast
                             Georgia Health System, Inc.), 5.5%, 2031                                     500,000         515,900
                             Royston, GA, Hospital Authority Rev. (Ty Cobb Healthcare System, Inc.),
                             6.125%, 2009                                                                 280,000         279,093
                             Tift County, GA, Hospital Authority Rev., Anticipation Certificates,
                             AMBAC, 5%, 2022                                                            2,000,000       2,079,800
                             Valdosta & Lowdes County, GA, Hospital Authority Rev. (Southern Georgia
                             Medical Center Project), AMBAC, 5.25%, 2027                                  500,000         528,170
                                                                                                                     ------------
                                                                                                                     $  5,659,102
- ---------------------------------------------------------------------------------------------------------------------------------
Healthcare Revenue - Long    Fulton County, GA, Residential Care Facilities (Canterbury Court), "A",
Term Care - 0.2%             6.125%, 2034                                                             $   150,000    $    150,681
- ---------------------------------------------------------------------------------------------------------------------------------
Industrial Revenue -
Environmental Services -     Savannah, GA, Economic Development Authority, Solid Waste Disposal Rev.
0.9%                         (Georgia Waste Management Project), "A", 5.5%, 2016                      $   500,000    $    525,120
- ---------------------------------------------------------------------------------------------------------------------------------
Industrial Revenue -         Cartersville, GA, Development Authority Waste (Anheuser Busch Project),
Other - 1.6%                 5.95%, 2032                                                              $   750,000    $    813,090
                             Virgin Islands Public Finance Authority, Refinery Facilities Rev.
                             (Hovensa Refinery), 5.875%, 2022                                             160,000         168,723
                                                                                                                     ------------
                                                                                                                     $    981,813
- ---------------------------------------------------------------------------------------------------------------------------------
Industrial Revenue -         Effingham County, GA, Development Authority, Solid Waste Disposal Rev.
Paper - 2.0%                 (Fort James), 5.625%, 2018                                               $   150,000    $    147,460
                             Savannah, GA, Economic Development Pollution (Union Camp Corp.),
                             6.15%, 2017                                                                1,000,000       1,101,020
                                                                                                                     ------------
                                                                                                                     $  1,248,480
- ---------------------------------------------------------------------------------------------------------------------------------
Multi-Family Housing         De Kalb County, GA, Housing Authority Multi-Family Housing Rev.
Revenue - 3.8%               (Castaways Apartments), "A", GNMA, 5.4%, 2029                            $   595,000    $    615,986
                             Hinesville, GA, Leased Housing Corp., "A", FHA, 6.7%, 2017                   900,000         902,016
                             Savannah, GA, Housing Authority (Chatham Gardens Project), FNMA,
                             5.625%, 2031                                                                 750,000         794,205
                                                                                                                     ------------
                                                                                                                     $  2,312,207
- ---------------------------------------------------------------------------------------------------------------------------------
Single Family Housing -
State - 4.8%                 Georgia Housing & Finance Authority Rev., 5.5%, 2032                     $ 1,000,000    $  1,005,710
                             Georgia Housing & Finance Authority Rev., Single Family Mortgage, "A",
                             5.6%, 2032                                                                   675,000         687,501
                             Georgia Housing & Finance Authority Rev., Single Family Mortgage,
                             "A-2", 4.85%, 2037                                                           500,000         488,420
                             Georgia Housing & Finance Authority Rev., Single Family Mortgage, "C",
                             5.1%, 2022                                                                   750,000         756,263
                                                                                                                     ------------
                                                                                                                     $  2,937,894
- ---------------------------------------------------------------------------------------------------------------------------------
State & Agency -             County Commissioners of Georgia Assoc., Leasing Program, Rockdale
Other - 2.6%                 County, GA (Public Purpose Project), AMBAC, 5.625%, 2020                 $   500,000    $    534,375
                             Fulton County, GA, Facilities Corp., Fulton County, GA (Public Purpose
                             Project), AMBAC, 5.9%, 2019                                                1,000,000       1,073,540
                                                                                                                     ------------
                                                                                                                     $  1,607,915
- ---------------------------------------------------------------------------------------------------------------------------------
State & Local Agencies -
3.8%                         Clayton County, GA, Development Authority Rev., "A", 6.25%, 2009 (c)     $   500,000    $    549,165
                             College Park, GA, Bus & Industrial Development Civic Center Project,
                             "N", AMBAC, 5.25%, 2025                                                      500,000         539,055
                             De Kalb County, GA, Public Safety & Judicial Facilities Authority Rev.,
                             5%, 2029                                                                     400,000         417,096
                             Fayette County, GA, Public Facilities Authority (Criminal Justice
                             Center Project), 6.25%, 2010 (c)                                             755,000         835,891
                                                                                                                     ------------
                                                                                                                     $  2,341,207
- ---------------------------------------------------------------------------------------------------------------------------------
Tax - Other - 2.9%           Puerto Rico Convention Center, District Authority Hotel Occupancy Tax
                             Rev., "A", CIFG, 4.5%, 2036                                              $   750,000    $    730,598
                             Virgin Islands Public Finance Authority Rev., ASST GTY, 5.5%, 2018         1,000,000       1,050,330
                                                                                                                     ------------
                                                                                                                     $  1,780,928
- ---------------------------------------------------------------------------------------------------------------------------------
Tax Assessment - 0.5%        Atlanta, GA, Tax Allocation (Eastside Project), "B", 5.6%, 2030          $   150,000    $    153,306
                             Atlanta, GA, Tax Allocation (Princeton Lakes Project), 5.5%, 2031            150,000         150,510
                                                                                                                     ------------
                                                                                                                     $    303,816
- ---------------------------------------------------------------------------------------------------------------------------------
Tobacco - 0.6%               Children's Trust Fund, Tobacco Settlement Rev., Puerto Rico,
                             5.375%, 2033                                                             $   365,000    $    374,165
- ---------------------------------------------------------------------------------------------------------------------------------
Transportation - Special     Commonwealth of Puerto Rico Highway & Transportation Authority, "Y",
Tax - 1.1%                   5.5%, 2036                                                               $   610,000    $    652,328
- ---------------------------------------------------------------------------------------------------------------------------------
Universities - Colleges -    Atlanta, GA, Development Authority Rev. (Tuff Yamacraw LLC Project),
9.8%                         "A", AMBAC, 5%, 2027                                                     $   335,000    $    359,760
                             Fulton County, GA (Morehouse College), AMBAC, 6.25%, 2021                    980,000       1,087,516
                             Fulton County, GA, Development Authority Rev. (Georgia Tech Foundation
                             Funding), "A", 5%, 2031                                                      265,000         272,815
                             Fulton County, GA, Development Authority Rev. (Georgia Tech
                             Foundation), "A", 5.75%, 2017                                              1,000,000       1,089,730
                             Private Colleges & University Authority (Emory University), "A",
                             5.75%, 2009 (c)                                                            1,000,000       1,076,750
                             Private Colleges & University Authority (Emory University), "A",
                             5.75%, 2010 (c)                                                            1,000,000       1,091,280
                             Private Colleges & University Authority (Mercer University),
                             5.75%, 2021                                                                  500,000         535,400
                             Savannah, GA, Economic Development Authority Rev. (College of
                             Art & Design, Inc.), ETM, 6.2%, 2009 (c)                                     500,000         519,330
                                                                                                                     ------------
                                                                                                                     $  6,032,581
- ---------------------------------------------------------------------------------------------------------------------------------
Universities -               Georgia Private College & University Authority Rev. (Mercer Housing
Dormitories - 2.6%           Corp.), "A", 6%, 2021                                                    $   500,000    $    529,275
                             Marietta, GA, Development Authority Rev., Student Housing (Southern
                             Polytech University), "A", 6.25%, 2007 (c)                                 1,000,000       1,058,240
                                                                                                                     ------------
                                                                                                                     $  1,587,515
- ---------------------------------------------------------------------------------------------------------------------------------
Utilities - Municipal
Owned - 5.8%                 Georgia Municipal Electric Authority Power Rev., "A", MBIA, 6.5%, 2020   $ 1,250,000    $  1,537,375
                             Griffin, GA, Combined Public Utility Rev., Refunding & Improvement,
                             AMBAC, 5%, 2025                                                              500,000         521,905
                             Monroe County, GA, Pollution Control Rev. (Oglethorpe Power Corp.),
                             "A", 6.8%, 2012                                                            1,000,000       1,136,740
                             Summerville, GA, Public Utility Rev., Refunding & Improvement,
                             5.75%, 2026                                                                  350,000         372,950
                                                                                                                     ------------
                                                                                                                     $  3,568,970
- ---------------------------------------------------------------------------------------------------------------------------------
Water & Sewer Utility
Revenue - 25.4%              Atlanta, GA, Water & Wastewater Rev., "A", MBIA, 5%, 2033                $   500,000    $    514,210
                             Atlanta, GA, Water & Wastewater Rev., RITES, FGIC, 7.019%, 2016 (z)(v)     4,000,000       4,744,400
                             Augusta, GA, Water & Sewer Rev., FSA, 5.25%, 2034                          1,000,000       1,064,770
                             Clayton County, GA, Water Authority, Water & Sewer Rev., 6.25%,
                             2010 (c)                                                                   1,000,000       1,103,360
                             Columbia County, GA, Water & Sewer Rev., FGIC, 6.25%, 2010 (c)               470,000         516,314
                             De Kalb County, GA, Water & Sewer Rev., 5.125%, 2031                       1,200,000       1,257,504
                             Fairburn, GA, Utility Rev., 5.75%, 2020                                      500,000         527,990
                             Forsyth County, GA, Water & Sewer Authority, 6.25%, 2010 (c)               1,105,000       1,217,290
                             Fulton County, GA, Water & Sewer Rev., FGIC, 6.375%, 2014                    100,000         111,947
                             Fulton County, GA, Water & Sewer Rev., FGIC, ETM, 6.375%, 2014 (c)         2,150,000       2,410,430
                             Gainesville, GA, Water & Sew Rev., FGIC, 5.625%, 2019                      1,000,000       1,074,990
                             Jackson County, GA, Water & Sewer Authority, "A", AMBAC, 5.75%, 2017       1,000,000       1,094,890
                                                                                                                     ------------
                                                                                                                     $ 15,638,095
- ---------------------------------------------------------------------------------------------------------------------------------
  TOTAL MUNICIPAL BONDS (IDENTIFIED COST, $57,018,161)                                                               $ 60,364,045
- ---------------------------------------------------------------------------------------------------------------------------------
Floating Rate Demand Notes - 0.5%
- ---------------------------------------------------------------------------------------------------------------------------------
                             Georgia Municipal Electric Authority, 3.05%, due 4/05/06                 $   100,000    $    100,000
                             Jefferson County, AL, Sewer Rev., Capital Improvement Warrants, "A",
                             3.22%, due 4/06/06                                                           200,000         200,000
- ---------------------------------------------------------------------------------------------------------------------------------
  TOTAL FLOATING RATE DEMAND NOTES, AT IDENTIFIED COST                                                               $    300,000
- ---------------------------------------------------------------------------------------------------------------------------------
  TOTAL INVESTMENTS (IDENTIFIED COST, $57,318,161)                                                                   $ 60,664,045
- ---------------------------------------------------------------------------------------------------------------------------------
Other Assets, Less Liabilities  - 1.4%                                                                                    832,368
- ---------------------------------------------------------------------------------------------------------------------------------
  NET ASSETS - 100.0%                                                                                                $ 61,496,413
- ---------------------------------------------------------------------------------------------------------------------------------

INTEREST RATE SWAPS


                              NOTIONAL PRINCIPAL                                                                  UNREALIZED
                                  AMOUNT OF               CASH FLOWS PAID                  CASH FLOWS            APPRECIATION
EXPIRATION        CURRENCY        CONTRACT                  BY THE FUND               RECEIVED BY THE FUND      (DEPRECIATION)
- ------------------------------------------------------------------------------------------------------------------------------
                                                                                                     
12/01/07             USD          $1,000,000              Fixed - 3 Year               Floating - 7 day             $13,733
                                                      BMA Swap Index (2.795%)           BMA Swap Index
- ------------------------------------------------------------------------------------------------------------------------------
 6/16/16             USD           1,000,000              Fixed - 10 Year              Floating - 7 Day               2,576
                                                      BMA Swap Index (3.977%)           BMA Swap Index
- ------------------------------------------------------------------------------------------------------------------------------
 7/13/16             USD           1,000,000              Fixed - 10 Year              Floating - 7 Day              21,024
                                                      BMA Swap Index (3.742%)           BMA Swap Index
- ------------------------------------------------------------------------------------------------------------------------------
 8/30/16             USD           1,500,000              Fixed - 10 Year              Floating - 7 Day              11,519
                                                      BMA Swap Index (3.926%)           BMA Swap Index
- ------------------------------------------------------------------------------------------------------------------------------
 6/15/18             USD           1,500,000              Fixed - 12 Year              Floating - 7 Day               7,896
                                                      BMA Swap Index (4.019%)           BMA Swap Index
- ------------------------------------------------------------------------------------------------------------------------------
 6/22/18             USD           1,000,000              Fixed - 12 Year              Floating - 7 Day              19,031
                                                      BMA Swap Index (3.861%)           BMA Swap Index
- ------------------------------------------------------------------------------------------------------------------------------
 9/13/26             USD             600,000             Floating - 3 Month             Fixed - 20 Year              (9,298)
                                                          LIBOR Swap Index         LIBOR Swap Index (5.363%)
- ------------------------------------------------------------------------------------------------------------------------------
                                                                                                                    $66,481
                                                                                                                    =======

At March 31, 2006, the fund had sufficient cash and/or securities to cover any commitments under these derivative contracts.

SEE PORTFOLIO FOOTNOTES AND NOTES TO FINANCIAL STATEMENTS




PORTFOLIO OF INVESTMENTS - 3/31/06                      MFS(R) MARYLAND MUNICIPAL BOND FUND

The Portfolio of Investments is a complete list of all securities owned by your
fund. It is categorized by broad-based asset classes.


Municipal Bonds - 96.6%
- ---------------------------------------------------------------------------------------------------------------------------------
                             ISSUER                                                                   SHARES/PAR      VALUE ($)
- ---------------------------------------------------------------------------------------------------------------------------------
                                                                                                               
Airport and Port             Maryland Transportation Authority Rev. (Baltimore/Washington
Revenue - 0.8%               International Airport), "A", AMBAC, 5%, 2027                             $ 1,000,000    $  1,035,430

- ---------------------------------------------------------------------------------------------------------------------------------
General Obligations -
General Purpose - 4.1%       Baltimore, MD, "B", 7.15%, 2009                                          $ 2,120,000    $  2,350,910
                             Baltimore, MD, Public Improvement, "A", MBIA, 7%, 2009                     1,000,000       1,110,980
                             Frederick County, MD, Public Facilities, 5.25%, 2009 (c)                   2,000,000       2,114,600
                                                                                                                     ------------
                                                                                                                     $  5,576,490
- ---------------------------------------------------------------------------------------------------------------------------------
General Obligations -
Improvement - 14.1%          Howard County, MD, "B", 0%, 2008                                         $ 1,000,000    $    914,320
                             Howard County, MD, Consolidated Public Improvement,
                             "A", 5.5%, 2008 (c)                                                        1,000,000       1,043,770
                             Howard County, MD, Consolidated Public Improvement,
                             "A", 5.5%, 2008 (c)                                                        2,000,000       2,087,540
                             Prince George's County, MD, 0%, 2007                                       5,110,000       4,887,255
                             Prince George's County, MD, Consolidated Public Improvement,
                             "A", 5%, 2023                                                              2,000,000       2,112,420
                             Prince George's County, MD, Unrefunded Balance, Public Improvement,
                             FSA, 5.375%, 2015                                                             80,000          85,322
                             Puerto Rico Municipal Finance Agency, RITES, FSA, 7.101%, 2019 (z)(v)      1,000,000       1,135,640
                             Washington Suburban Sanitation District, General Construction Rev.,
                             5%, 2027                                                                     930,000         973,766
                             Washington Suburban Sanitation District, General Construction Rev.,
                             5%, 2028                                                                     980,000       1,024,619
                             Washington Suburban Sanitation District, General Construction Rev.,
                             5%, 2029                                                                   1,025,000       1,070,090
                             Worcester County, MD, Public Improvement, 5.625%, 2010 (c)                 1,620,000       1,748,255
                             Worcester County, MD, Public Improvement, 5.625%, 2010 (c)                 2,030,000       2,190,715
                                                                                                                     ------------
                                                                                                                     $ 19,273,712
- ---------------------------------------------------------------------------------------------------------------------------------
Healthcare Revenue -         Maryland Health & Higher Educational Facilities Authority Rev.
Hospitals - 19.9%            (Peninsula Regional Medical Center), 5%, 2036                            $ 1,000,000    $  1,018,390
                             Maryland Health & Higher Educational Facilities Authority Rev.
                             (Adventist Healthcare), "A", 5.75%, 2025                                   1,000,000       1,052,800
                             Maryland Health & Higher Educational Facilities Authority Rev. (Anne
                             Arundel Health Systems), "A", FSA, 5%, 2023                                1,000,000       1,044,540
                             Maryland Health & Higher Educational Facilities Authority Rev.
                             (Calvert Health Systems), 5.5%, 2039                                       1,000,000       1,048,480
                             Maryland Health & Higher Educational Facilities Authority Rev.
                             (Carroll County General Hospital), 6%, 2037                                1,000,000       1,058,430
                             Maryland Health & Higher Educational Facilities Authority Rev.
                             (Doctors Community Hospital), 5.5%, 2024                                   1,000,000       1,001,800
                             Maryland Health & Higher Educational Facilities Authority Rev.
                             (Frederick Memorial Hospital), 5.125%, 2035                                1,000,000       1,007,620
                             Maryland Health & Higher Educational Facilities Authority Rev. (Good
                             Samaritan Hospital), ETM, 5.7%, 2009 (c)                                   1,085,000       1,133,706
                             Maryland Health & Higher Educational Facilities Authority Rev. (Johns
                             Hopkins Hospital), 5%, 2021                                                  750,000         772,440
                             Maryland Health & Higher Educational Facilities Authority Rev. (Johns
                             Hopkins Medical Institutions), "A", 5%, 2037                                 750,000         763,140
                             Maryland Health & Higher Educational Facilities Authority Rev.
                             (Lifebridge Health), "A", 5.125%, 2034                                     1,000,000       1,018,420
                             Maryland Health & Higher Educational Facilities Authority Rev.
                             (Medlantic/Helix Issue), "B", AMBAC, 5.25%, 2038                           1,500,000       1,668,660
                             Maryland Health & Higher Educational Facilities Authority Rev.
                             (Medstar Health), 5.5%, 2033                                                 800,000         829,224
                             Maryland Health & Higher Educational Facilities Authority Rev. (Mercy
                             Medical Center), FSA, 5.625%, 2017                                         1,800,000       1,843,650
                             Maryland Health & Higher Educational Facilities Authority Rev. (North
                             Arundel Hospital), 6.5%, 2010 (c)                                            500,000         557,455
                             Maryland Health & Higher Educational Facilities Authority Rev.
                             (Suburban Hospital), "A", 5.5%, 2016                                       1,000,000       1,077,410
                             Maryland Health & Higher Educational Facilities Authority Rev. (Union
                             Hospital of Cecil County Issue), 5.625%, 2032                              1,000,000       1,045,590
                             Maryland Health & Higher Educational Facilities Authority Rev. (Union
                             Hospital of Cecil County Issue), 5%, 2035                                    500,000         506,980
                             Maryland Health & Higher Educational Facilities Authority Rev.
                             (University of Maryland Medical Systems), 6.625%, 2010 (c)                 1,000,000       1,106,890
                             Maryland Health & Higher Educational Facilities Authority Rev.
                             (University of Maryland Medical Systems), "B", AMBAC, 5%, 2024             1,000,000       1,048,160
                             Maryland Health & Higher Educational Facilities Authority Rev. (Upper
                             Chesapeake Hospital), "A", FSA, 5.5%, 2020                                 2,000,000       2,078,040
                             Maryland Health & Higher Educational Facilities Rev. (Helix Health
                             Issue), AMBAC, ETM, 5%, 2027 (c)                                           1,000,000       1,062,920
                             Maryland Industrial Development Authority, Economic Development Rev.,
                             RIBS, FSA, 8.36%, 2022 (v)                                                 1,400,000       1,776,180
                             Maryland State Health & Higher Educational Facilities Authority Rev.
                             (Catholic Health), "A", 6%, 2020                                             245,000         269,904
                             Maryland State Health & Higher Educational Facilities Authority Rev.
                             (Catholic Health), "A", ETM, 6%, 2020 (c)                                    755,000         820,723
                             Montgomery County, MD, Economic Development (Trinity Healthcare
                             Group), 5.125%, 2022                                                         500,000         517,945
                                                                                                                     ------------
                                                                                                                     $ 27,129,497
- ---------------------------------------------------------------------------------------------------------------------------------
Healthcare Revenue - Long    Maryland Health & Higher Educational Facilities Authority Rev.
Term Care - 1.1%             (Bradford Oaks Nursing & Rehabilitation Center), 6.375%, 2027            $ 1,000,000    $  1,004,230
                             Maryland Health & Higher Educational Facilities Authority Rev. (Mercy
                             Ridge), "A", 6%, 2035                                                        150,000         155,106
                             Westminster, MD, Economic Development Rev. (Carroll Lutheran
                             Village), "A", 6.25%, 2034                                                   400,000         410,968
                                                                                                                     ------------
                                                                                                                     $  1,570,304
- ---------------------------------------------------------------------------------------------------------------------------------
Industrial Revenue -         Baltimore, MD, Port Facilities Rev., Consolidated Coal Sales, "B",
Chemicals - 1.2%             6.5%, 2011                                                               $ 1,500,000    $  1,587,675
- ---------------------------------------------------------------------------------------------------------------------------------
Industrial Revenue -
Environmental Services -     Northeast Maryland Waste Disposal Authority Resources Recovery Rev.
0.5%                         (Baltimore Resco Retrofit Project), 5%, 2012                             $   690,000    $    703,848
- ---------------------------------------------------------------------------------------------------------------------------------
Industrial Revenue -         Virgin Islands Public Finance Authority, Refinery Facilities Rev.
Other - 0.3%                 (Hovensa Refinery), 5.875%, 2022                                         $   375,000    $    395,445
- ---------------------------------------------------------------------------------------------------------------------------------
Miscellaneous Revenue -
Entertainment &              Maryland Industrial Development Authority Economic Development
Tourism - 0.8%               (Baltimore Aquarium Project), 5.2%, 2026                                 $ 1,000,000    $  1,042,880
- ---------------------------------------------------------------------------------------------------------------------------------
Miscellaneous Revenue -
Other - 4.4%                 Baltimore, MD, Convention Center Hotel Rev., "A", XLCA, 5.25%, 2039      $ 1,000,000    $  1,066,010
                             Baltimore, MD, Convention Center Hotel Rev., "B", 5.875%, 2039               300,000         310,464
                             Harford County MD, Economic Development Rev. (Battelle Memorial
                             Institute Project), 5.25%, 2034                                            1,600,000       1,669,952
                             Maryland Industrial Authority Economic Development Rev. (YMCA
                             Baltimore), 8%, 2006 (c)                                                   2,825,000       2,920,937
                                                                                                                     ------------
                                                                                                                     $  5,967,363
- ---------------------------------------------------------------------------------------------------------------------------------
Multi-Family Housing
Revenue - 4.3%               Baltimore, MD, City Housing Corp. Rev., "A", FHA, 7.25%, 2023            $ 1,040,000    $  1,041,830
                             Baltimore, MD, City Housing Corp. Rev., FHA, 7.75%, 2009                     420,000         418,669
                             Maryland Community Development Administration (Waters Landing II
                             Apartments), "A", GNMA, 5.875%, 2033                                       1,500,000       1,570,275
                             Maryland Community Development Administration, "A", 5%, 2034                 910,000         911,665
                             Maryland Community Development Administration, "A", 5.1%, 2044               970,000         972,386
                             Maryland Community Development Administration, "D", 5%, 2032               1,000,000         997,020
                                                                                                                     ------------
                                                                                                                     $  5,911,845
- ---------------------------------------------------------------------------------------------------------------------------------
Parking - 1.1%               Maryland Health & Higher Educational Facilities Authority Rev. (Johns
                             Hopkins Medical Institutions), AMBAC, 5%, 2034                           $ 1,500,000    $  1,554,195
- ---------------------------------------------------------------------------------------------------------------------------------
Single Family Housing -      Prince George's County, MD, Housing Single Family Collateral, "A",
Local - 0.3%                 7.4%, 2032                                                               $    40,000    $     40,204
                             Prince George's County, MD, Housing Single Family Collateral, "A",
                             GNMA, 5.6%, 2034                                                              85,000          85,811
                             Prince George's County, MD, Housing Single Family, "A", GNMA,
                             5.375%, 2018                                                                 240,000         244,598
                                                                                                                     ------------
                                                                                                                     $    370,613
- ---------------------------------------------------------------------------------------------------------------------------------
Single Family Housing -      Maryland Community Development Administration Housing, "A",
State - 3.3%                 5.875%, 2016                                                             $ 1,155,000    $  1,184,568
                             Maryland Community Development Administration Residential, "B",
                             4.75%, 2019                                                                  785,000         787,261
                             Maryland Community Development Administration Single Family Program,
                             First Series, 5.15%, 2018                                                  2,000,000       2,024,520
                             Puerto Rico Housing Finance Authority Home Mortgage Rev., Mortgage
                             Backed Securities, "A", 4.75%, 2023                                          180,000         180,254
                             Puerto Rico Housing Finance Authority Mortgage Backed Securities,
                             "A", 4.375%, 2017                                                            305,000         299,385
                                                                                                                     ------------
                                                                                                                     $  4,475,988
- ---------------------------------------------------------------------------------------------------------------------------------
Solid Waste Revenue - 0.8%   Northeast Maryland Waste Disposal Authority Solid Waste Rev., 6%, 2006   $ 1,100,000    $  1,105,126
- ---------------------------------------------------------------------------------------------------------------------------------
State & Agency -
Other - 4.2%                 Howard County, MD, COP, 8%, 2019                                         $   805,000    $  1,115,295
                             Howard County, MD, COP, 8%, 2019                                             385,000         533,402
                             Howard County, MD, COP, 8%, 2019                                             680,000         942,113
                             Howard County, MD, COP, 8.15%, 2021                                          450,000         640,004
                             Prince George's County, MD, COP, "A", MBIA, 0%, 2006                       2,490,000       2,469,532
                                                                                                                     ------------
                                                                                                                     $  5,700,346
- ---------------------------------------------------------------------------------------------------------------------------------
State & Local Agencies -     Maryland Stadium Authority, Lease Rev. (Convention Center Expansion),
4.5%                         AMBAC, 5.875%, 2012                                                      $ 1,000,000    $  1,011,290
                             Prince George's County, MD, Lease Development Authority Rev., MBIA,
                             0%, 2009                                                                   1,500,000       1,321,230
                             Puerto Rico Public Finance Corp., Commonwealth Appropriation, "E",
                             5.7%, 2010 (c)                                                             1,235,000       1,323,574
                             Puerto Rico Public Finance Corp., RITES, AMBAC, 6.826%, 2013 (z)(v)          500,000         591,270
                             Puerto Rico Public Finance Corp., RITES, AMBAC, 6.826%, 2016 (z)(v)        1,520,000       1,844,490
                                                                                                                     ------------
                                                                                                                     $  6,091,854
- ---------------------------------------------------------------------------------------------------------------------------------
Tax - Other - 1.5%           Virgin Islands Public Finance Authority Rev., "A", 5.5%, 2022            $ 1,000,000    $  1,036,310
                             Virgin Islands Public Finance Authority Rev., "E", 5.875%, 2018            1,000,000       1,053,060
                                                                                                                     ------------
                                                                                                                     $  2,089,370
- ---------------------------------------------------------------------------------------------------------------------------------
Tax Assessment - 1.6%        Anne Arundel County, MD, Special Obligations (Arundel Mills Project),
                             5.125%, 2029                                                             $ 1,555,000    $  1,639,794
                             Prince George's County, MD, Special Obligations (National Harbor
                             Project), 5.2%, 2034                                                         500,000         498,710
                                                                                                                     ------------
                                                                                                                     $  2,138,504
- ---------------------------------------------------------------------------------------------------------------------------------
Tobacco - 0.6%               Children's Trust Fund, Tobacco Settlement Rev., Puerto Rico,
                             5.375%, 2033                                                             $   235,000    $    240,901
                             Guam Economic Development Authority Tobacco Settlement,
                             "B", 5.5%, 2041                                                              400,000         408,220
                             Virgin Islands Tobacco Settlement Financing Corp., 5%, 2021                  235,000         236,781
                                                                                                                     ------------
                                                                                                                     $    885,902
- ---------------------------------------------------------------------------------------------------------------------------------
Universities - Colleges -    Annapolis, MD, Economic Development Rev. (St. John's College),
14.2%                        5.5%, 2018                                                               $   750,000    $    771,735
                             Anne Arundel County, MD, Economic Development (Community College
                             Project), 5.25%, 2028                                                      1,600,000       1,691,168
                             Frederick County, MD, Educational Facilities Rev. (Mount St. Mary's
                             College), "A", 5.7%, 2020                                                    850,000         880,039
                             Maryland Health & Higher Education (College Of Art), 5%, 2030                750,000         758,888
                             Maryland Health & Higher Education (Loyola College), "A", 5%, 2040         1,000,000       1,012,050
                             Maryland Health & Higher Educational Facilities Authority Rev.
                             (Goucher College), 5.375%, 2025                                              500,000         530,155
                             Maryland Health & Higher Educational Facilities Authority Rev. (Johns
                             Hopkins University), 5.625%, 2027                                          1,400,000       1,446,536
                             Maryland Health & Higher Educational Facilities Authority Rev. (Johns
                             Hopkins University), "A", 5%, 2032                                         2,000,000       2,066,920
                             Maryland Health & Higher Educational Facilities Authority Rev.
                             (Loyola College), "A", MBIA, 5.5%, 2006 (c)                                3,000,000       3,089,280
                             Montgomery County, MD, Rev. Authority (College Arts Center Project),
                             "A", 5%, 2027                                                              1,950,000       2,030,750
                             Morgan State University, MD, Academic, "A", MBIA, ETM, 0%, 2006 (c)        1,135,000       1,125,591
                             Morgan State University, MD, Academic, "A", MBIA, ETM, 0%, 2008 (c)        1,400,000       1,289,106
                             Morgan State University, MD, Academic, MBIA, 6.05%, 2015                   1,500,000       1,676,100
                             Westminster, MD, Educational Facilities Rev. (McDaniel College),
                             5.5%, 2032                                                                 1,000,000       1,038,630
                                                                                                                     ------------
                                                                                                                     $ 19,406,948
- ---------------------------------------------------------------------------------------------------------------------------------
Universities -               Maryland Economic Development Corp. (Morgan State University
Dormitories - 3.7%           Project), "A", 6%, 2034                                                  $ 1,000,000    $  1,037,550
                             Maryland Economic Development Corp. (University of Maryland College
                             Park Project), AMBAC, 5%, 2019                                             1,850,000       1,928,551
                             Maryland Economic Development Corp., Collegiate Housing (Salisbury),
                             "A", 6%, 2019                                                              1,000,000       1,041,910
                             Maryland Economic Development Corp., Collegiate Housing Rev. (Towson
                             University), "A", 5.75%, 2029                                              1,000,000       1,008,950
                                                                                                                     ------------
                                                                                                                     $  5,016,961
- ---------------------------------------------------------------------------------------------------------------------------------
Universities - Secondary     Maryland Industrial Development Financing Authority, Economic
Schools - 0.3%               Development Authority Rev., (Our Lady of Good Council), "A", 6%, 2035    $   400,000    $    424,272
- ---------------------------------------------------------------------------------------------------------------------------------
Utilities - Municipal
Owned - 3.6%                 Guam Power Authority Rev., RITES, AMBAC, 6.565%, 2015 (z)(v)             $ 1,680,000    $  1,875,149
                             Puerto Rico Electric Power Authority Rev., "NN", 5.125%, 2024              1,500,000       1,566,690
                             Puerto Rico Electric Power Authority Rev., RITES, FSA, 6.559%,
                             2015 (z)(v)                                                                1,400,000       1,497,244
                                                                                                                     ------------
                                                                                                                     $  4,939,083
- ---------------------------------------------------------------------------------------------------------------------------------
Water & Sewer Utility        Baltimore, MD, Project Rev., Refunding Water Projects, "A", FGIC,
Revenue - 5.4%               5.125%, 2032                                                             $ 1,000,000    $  1,044,100
                             Baltimore, MD, Rev., LEVRRS, MBIA, 7.9%, 2020 (v)                          3,000,000       3,752,880
                             Baltimore, MD, Wastewater Rev. Project, "A", MBIA, 5.65%, 2020             2,000,000       2,250,960
                             Puerto Rico Aqueduct & Sewer Authority Rev., ETM, 10.25%, 2009 (c)           250,000         277,590
                                                                                                                     ------------
                                                                                                                     $  7,325,530
- ---------------------------------------------------------------------------------------------------------------------------------
  TOTAL MUNICIPAL BONDS (IDENTIFIED COST, $124,432,764)                                                              $131,719,181
- ---------------------------------------------------------------------------------------------------------------------------------
Floating Rate Demand Notes - 0.6%
- ---------------------------------------------------------------------------------------------------------------------------------
                             Allegheny County, PA, Hospital Development Authority Rev.
                             (Presbyterian University Hospital), "A", 3.22%, due 4/06/06              $   300,000    $    300,000
                             Allegheny County, PA, Hospital Development Authority Rev.
                             (Presbyterian University Hospital), "B", 3.22%, due 4/06/06                  400,000         400,000
                             Triborough Bridge & Tunnel Authority, NY, Rev., "F", 3.16%,
                             due 4/06/06                                                                  100,000         100,000
- ---------------------------------------------------------------------------------------------------------------------------------
  TOTAL FLOATING RATE DEMAND NOTES, AT IDENTIFIED COST                                                               $    800,000
- ---------------------------------------------------------------------------------------------------------------------------------
  TOTAL INVESTMENTS (IDENTIFIED COST, $125,232,764)                                                                  $132,519,181
- ---------------------------------------------------------------------------------------------------------------------------------
Other Assets, Less Liabilities  - 2.8%                                                                                  3,798,079
- ---------------------------------------------------------------------------------------------------------------------------------
  NET ASSETS  - 100.0%                                                                                               $136,317,260
- ---------------------------------------------------------------------------------------------------------------------------------

INTEREST RATE SWAPS


                              NOTIONAL PRINCIPAL                                                                  UNREALIZED
                                  AMOUNT OF               CASH FLOWS PAID                  CASH FLOWS            APPRECIATION
EXPIRATION        CURRENCY        CONTRACT                  BY THE FUND               RECEIVED BY THE FUND      (DEPRECIATION)
- ------------------------------------------------------------------------------------------------------------------------------
                                                                                                    
12/01/07             USD          $3,000,000              Fixed - 3 Year               Floating - 7 Day             $41,200
                                                      BMA Swap Index (2.795%)           BMA Swap Index
- ------------------------------------------------------------------------------------------------------------------------------
 6/16/16             USD           1,500,000              Fixed - 10 Year              Floating - 7 Day               3,864
                                                      BMA Swap Index (3.977%)           BMA Swap Index
- ------------------------------------------------------------------------------------------------------------------------------
 7/13/16             USD           1,000,000              Fixed - 10 Year              Floating - 7 Day              21,024
                                                      BMA Swap Index (3.742%)           BMA Swap Index
- ------------------------------------------------------------------------------------------------------------------------------
 8/30/16             USD           1,500,000              Fixed - 10 Year              Floating - 7 Day              11,519
                                                      BMA Swap Index (3.926%)           BMA Swap Index
- ------------------------------------------------------------------------------------------------------------------------------
 6/22/18             USD           2,000,000              Fixed - 12 Year              Floating - 7 Day              38,062
                                                      BMA Swap Index (3.861%)           BMA Swap Index
- ------------------------------------------------------------------------------------------------------------------------------
 8/02/21             USD           1,000,000              Fixed - 15 Year              Floating -7 Day               15,981
                                                      BMA Swap Index (4.011%)           BMA Swap Index
- ------------------------------------------------------------------------------------------------------------------------------
 9/13/26             USD           1,250,000             Floating - 3 Month             Fixed - 20 Year             (19,370)
                                                          LIBOR Swap Index         LIBOR Swap Index (5.363%)
- ------------------------------------------------------------------------------------------------------------------------------
                                                                                                                   $112,280
                                                                                                                   ========

At March 31, 2006, the fund had sufficient cash and/or securities to cover any commitments under these derivative contracts.

SEE PORTFOLIO FOOTNOTES AND NOTES TO FINANCIAL STATEMENTS




PORTFOLIO OF INVESTMENTS - 3/31/06                      MFS(R) MASSACHUSETTS MUNICIPAL BOND FUND

The Portfolio of Investments is a complete list of all securities owned by your
fund. It is categorized by broad-based asset classes.


Municipal Bonds - 98.0%
- ---------------------------------------------------------------------------------------------------------------------------------
                             ISSUER                                                                   SHARES/PAR      VALUE ($)
- ---------------------------------------------------------------------------------------------------------------------------------
                                                                                                               
Airport & Port
Revenue - 4.3%               Massachusetts Port Authority Rev., 6.125%, 2010 (c)                      $ 1,460,000    $  1,594,130
                             Massachusetts Port Authority Rev., "A", AMBAC, 5%, 2035                    2,000,000       2,056,480
                             Massachusetts Port Authority Rev., "A", FSA, 5.125%, 2017                  1,275,000       1,335,257
                             Massachusetts Port Authority Rev., "A", MBIA, 5%, 2033                     3,000,000       3,071,100
                             Massachusetts Port Authority Rev., "C", 6%, 2010 (c)                       1,000,000       1,087,550
                             Massachusetts Port Authority Rev., ETM, 13%, 2013 (c)                        660,000         889,786
                                                                                                                     ------------
                                                                                                                     $ 10,034,303
- ---------------------------------------------------------------------------------------------------------------------------------
General Obligations -
General Purpose - 13.4%      Boston, MA, "A", 5.75%, 2010 (c)                                         $ 3,645,000    $  3,912,871
                             Brookline, MA, 5.375%, 2019                                                1,800,000       1,938,906
                             Commonwealth of Massachusetts, 5.875%, 2009 (c)                            1,000,000       1,076,120
                             Commonwealth of Massachusetts, "B", 5.25%, 2028                            2,500,000       2,792,375
                             Commonwealth of Massachusetts, FGIC, ETM, 7%, 2009 (c)                     1,150,000       1,224,865
                             Greater Lawrence, MA, San District, MBIA, 5.625%, 2020                     1,640,000       1,759,703
                             Lynn, MA, AMBAC, 5.125%, 2018                                              3,690,000       3,864,426
                             Middleborough, MA, FGIC, 5.6%, 2010 (c)                                       75,000          80,712
                             Salisbury, MA, MBIA, 5.25%, 2031                                           2,790,000       2,975,033
                             State of Massachusetts, Consolidated Loan, "A", 6%, 2010 (c)               3,000,000       3,261,900
                             State of Massachusetts, Consolidated Loan, "B", 5.75%, 2010 (c)            1,000,000       1,079,440
                             State of Massachusetts, Consolidated Loan, "C", 5.75%, 2010 (c)            1,500,000       1,622,235
                             Sutton, MA, MBIA, 5.5%, 2017                                               1,000,000       1,069,060
                             Sutton, MA, MBIA, 5.5%, 2019                                               1,000,000       1,066,000
                             Westford, MA, FGIC, 5.25%, 2020                                            2,250,000       2,395,080
                             Weymouth, MA, MBIA, 5.375%, 2020                                           1,250,000       1,331,375
                                                                                                                     ------------
                                                                                                                     $ 31,450,101
- ---------------------------------------------------------------------------------------------------------------------------------
General Obligations -        Massachusetts Bay Transportation Authority, RITES,
Improvement - 5.4%           8.389%, 2016 (z)(v)                                                      $ 4,835,000    $  6,193,828
                             Massachusetts Bay Transportation Authority, Unrefunded Balance,
                             "A", 5.75%, 2018                                                             320,000         343,939
                             Maynard, MA, MBIA, 5.5%, 2021                                              1,000,000       1,089,480
                             Springfield, MA, FSA, 6.25%, 2009 (c)                                      1,600,000       1,749,216
                             Worcester, MA, "A", FSA, 6%, 2016                                          2,955,000       3,233,863
                                                                                                                     ------------
                                                                                                                     $ 12,610,326
- ---------------------------------------------------------------------------------------------------------------------------------
General Obligations -
Schools - 4.9%               Belmont, MA, 5%, 2015                                                    $ 2,165,000    $  2,195,569
                             Dudley-Charlton, MA, Regional School District, RITES, FGIC,
                             6.542%, 2015 (z)(v)                                                        1,365,000       1,618,617
                             Dudley-Charlton, MA, Regional School District, RITES, FGIC,
                             6.542%, 2016 (z)(v)                                                        1,430,000       1,706,619
                             Dudley-Charlton, MA, Regional School District, RITES, FGIC,
                             6.542%, 2018 (z)(v)                                                        1,565,000       1,888,517
                             Narragansett, MA, Regional School District, AMBAC, 6%, 2019                1,720,000       1,877,414
                             Tantasquama, MA, Regional School District, FSA, 5.375%, 2010 (c)           2,000,000       2,149,900
                                                                                                                     ------------
                                                                                                                     $ 11,436,636
- ---------------------------------------------------------------------------------------------------------------------------------
Healthcare Revenue -         Massachusetts Development Finance Agency, Massachusetts Biomedical
Hospitals - 10.9%            Research, "C", 6.375%, 2016                                              $    50,000    $     54,672
                             Massachusetts Health & Educational Facilities Authority Rev.
                             (Baystate Medical Center), "F", 5.75%, 2033                                2,000,000       2,103,420
                             Massachusetts Health & Educational Facilities Authority Rev.
                             (Berkshire Health Systems), 6.25%, 2031                                    1,350,000       1,431,756
                             Massachusetts Health & Educational Facilities Authority Rev. (Caritas
                             Christi), 6.5%, 2012                                                         500,000         541,735
                             Massachusetts Health & Educational Facilities Authority Rev. (Caritas
                             Christi), "B", 6.25%, 2022                                                    20,000          21,493
                             Massachusetts Health & Educational Facilities Authority Rev.
                             (Catholic Health East Issue), 5.5%, 2032                                   1,575,000       1,646,710
                             Massachusetts Health & Educational Facilities Authority Rev.
                             (Covenant Health Systems, Inc.), 6.5%, 2017                                   75,000          83,288
                             Massachusetts Health & Educational Facilities Authority Rev.
                             (Covenant Health Systems, Inc.), 6%, 2031                                  1,000,000       1,080,680
                             Massachusetts Health & Educational Facilities Authority Rev. (Jordan
                             Hospital), 5.25%, 2018                                                     1,330,000       1,325,465
                             Massachusetts Health & Educational Facilities Authority Rev. (Milford
                             Whitinsville Hospital), 6.35%, 2032                                           50,000          52,946
                             Massachusetts Health & Educational Facilities Authority Rev.
                             (Milford-Whitinsville Regional Hospital), "C", 5.25%, 2018                 1,500,000       1,483,845
                             Massachusetts Health & Educational Facilities Authority Rev. (Milton
                             Hospital), "C", 5.5%, 2016                                                   800,000         817,280
                             Massachusetts Health & Educational Facilities Authority Rev. (New
                             England Medical Center Hospital), "H", FGIC, 5.375%, 2018                  1,000,000       1,072,730
                             Massachusetts Health & Educational Facilities Authority Rev. (New
                             England Medical Center Hospital), "H", FGIC, 5.375%, 2019                    815,000         873,819
                             Massachusetts Health & Educational Facilities Authority Rev. (New
                             England Medical Center Hospital), "H", FGIC, 5%, 2025                      1,135,000       1,174,782
                             Massachusetts Health & Educational Facilities Authority Rev. (Newton
                             Wellesley Hospital), "G", MBIA, 6.125%, 2015                               1,000,000       1,047,890
                             Massachusetts Health & Educational Facilities Authority Rev. (North
                             Adams Regional Hospital), "C", 6.625%, 2018                                  475,000         485,811
                             Massachusetts Health & Educational Facilities Authority Rev.
                             (Partners Healthcare Systems), 5.75%, 2021                                   100,000         109,053
                             Massachusetts Health & Educational Facilities Authority Rev.
                             (Partners Healthcare Systems), "A", MBIA, 5.375%, 2018                     2,000,000       2,057,480
                             Massachusetts Health & Educational Facilities Authority Rev. (South
                             Shore Hospital), "F", 5.625%, 2019                                         2,000,000       2,110,280
                             Massachusetts Health & Educational Facilities Authority Rev.
                             (University of Massachusetts Memorial Hospital), 6.5%, 2021                1,000,000       1,095,260
                             Massachusetts Health & Educational Facilities Authority Rev.
                             (University of Massachusetts), "D", 5%, 2033                                 500,000         493,370
                             Massachusetts Industrial Finance Agency Rev., Capital Appreciation
                             (Mass Biomedical Research), "A", 0%, 2010                                  5,300,000       4,409,759
                                                                                                                     ------------
                                                                                                                     $ 25,573,524
- ---------------------------------------------------------------------------------------------------------------------------------
Healthcare Revenue - Long    Boston, MA, Industrial Development Finance Authority, Alzheimer's
Term Care - 0.3%             Center Project, FHA, 5.5%, 2012                                          $   140,000    $    140,189
                             Massachusetts Development Finance Agency Rev., First Mortgage,
                             (Loomis Communities Project), "A", 6.9%, 2032                                530,000         569,697
                                                                                                                     ------------
                                                                                                                     $    709,886
- ---------------------------------------------------------------------------------------------------------------------------------
Human Services - 0.4%        Massachusetts Health & Educational Facilities Authority Rev.
                             (Learning Center for Deaf Children), 6.1%, 2019                          $ 1,000,000    $  1,016,200
- ---------------------------------------------------------------------------------------------------------------------------------
Industrial Revenue -
Airlines - 1.4%              Massachusetts Port Authority Rev. (U.S. Airways), MBIA, 5.875%, 2016     $ 1,900,000    $  2,000,339
                             Massachusetts Port Authority Rev., Special Facilities (U.S. Airways),
                             "A", MBIA, 5.625%, 2011                                                    1,140,000       1,170,529
                                                                                                                     ------------
                                                                                                                     $  3,170,868
- ---------------------------------------------------------------------------------------------------------------------------------
Industrial Revenue -         Massachusetts Development Finance Agency Rev. (Waste Management,
Environmental Services -     Inc.), 5.5%, 2027                                                        $   750,000    $    797,138
0.8%                         Massachusetts Development Finance Agency Rev., Resource Recovery Rev.
                             (Waste Management, Inc.), 6.9%, 2029                                       1,000,000       1,089,130
                                                                                                                     ------------
                                                                                                                     $  1,886,268
- ---------------------------------------------------------------------------------------------------------------------------------
Industrial Revenue -         Massachusetts Development Finance Agency, Resource Recovery Rev.
Other - 2.0%                 (Flour Corp.), 5.625%, 2019                                              $ 1,675,000    $  1,747,427
                             Massachusetts Industrial Finance Agency Rev. (Welch Foods, Inc.),
                             5.6%, 2017                                                                 2,100,000       2,179,443
                             Virgin Islands Public Finance Authority, Refinery Facilities Rev.
                             (Hovensa Refinery), 5.875%, 2022                                             595,000         627,439
                                                                                                                     ------------
                                                                                                                     $  4,554,309
- ---------------------------------------------------------------------------------------------------------------------------------
Miscellaneous Revenue -
Other - 1.7%                 Martha's Vineyard, MA, Land Bank Rev., AMBAC, 5%, 2029                   $   785,000    $    814,523
                             Massachusetts Development Finance Agency Rev. (WGBH Educational
                             Foundation), "A", AMBAC, 5.375%, 2042 (c)                                  3,000,000       3,156,030
                                                                                                                     ------------
                                                                                                                     $  3,970,553
- ---------------------------------------------------------------------------------------------------------------------------------
Multi-Family Housing         Massachusetts Development Finance Agency (Morville House Apartments),
Revenue - 4.8%               "A", LOC, 4.95%, 2023                                                    $ 2,500,000    $  2,475,400
                             Massachusetts Development Finance Agency Rev. (Credit Housing-Chelsea
                             Homes), "I-A", 5%, 2024                                                    1,185,000       1,173,553
                             Massachusetts Housing Finance Agency Rev., "F", 5.125%, 2034                 720,000         729,288
                             Massachusetts Housing Finance Agency Rev., "P", 5%, 2023                   1,240,000       1,256,294
                             Massachusetts Housing Finance Agency Rev., "P", 5.1%, 2033                 1,565,000       1,578,428
                             Massachusetts Housing Finance Agency Rev., "P", 5.2%, 2045                 1,445,000       1,456,921
                             Massachusetts Housing Finance Agency Rev., Rental Mortgage, "A",
                             AMBAC, 5.7%, 2020                                                          1,475,000       1,502,391
                             Massachusetts Housing Finance Agency, Rev., "E", 5%, 2028                  1,000,000         991,900
                                                                                                                     ------------
                                                                                                                     $ 11,164,175
- ---------------------------------------------------------------------------------------------------------------------------------
Parking - 0.6%               Rail Connections, Inc., Massachusetts Rev. (Route 128 Parking
                             Garage), "A", 6%, 2009 (c)                                               $   450,000    $    490,005
                             Rail Connections, Inc., Massachusetts Rev. (Route 128 Parking
                             Garage), "A", 6%, 2009 (c)                                                   500,000         544,450
                             Rail Connections, Inc., Massachusetts Rev. (Route 128 Parking
                             Garage), "A", 6%, 2009 (c)                                                   250,000         272,225
                                                                                                                     ------------
                                                                                                                     $  1,306,680
- ---------------------------------------------------------------------------------------------------------------------------------
Sales & Excise Tax           Massachusetts Bay Transportation Authority, Sales Tax Rev.,
Revenue - 1.6%               "A", 5%, 2012 (c)                                                        $ 2,020,000    $  2,147,623
                             Route 3 North Transportation Improvement Associates, MBIA,
                             5.625%, 2010 (c)                                                           1,500,000       1,610,535
                                                                                                                     ------------
                                                                                                                     $  3,758,158
- ---------------------------------------------------------------------------------------------------------------------------------
Single Family Housing -      Massachusetts Housing Finance Agency, Single Family Housing Rev.,
State - 2.4%                 "102", 5%, 2029                                                          $ 1,500,000    $  1,503,270
                             Massachusetts Housing Finance Agency, Single Family Housing Rev.,
                             "118", 4.75%, 2030                                                         1,500,000       1,461,630
                             Massachusetts Housing Finance Agency, Single Family Housing Rev.,
                             "91", 5.5%, 2031                                                             660,000         664,719
                             Massachusetts Housing Finance Agency, Single Family, "122",
                             4.85%, 2031                                                                2,000,000       1,995,220
                                                                                                                     ------------
                                                                                                                     $  5,624,839
- ---------------------------------------------------------------------------------------------------------------------------------
Solid Waste Revenue - 1.1%   Massachusetts Development Finance Agency Rev. (Ogden Haverhill
                             Associates), 6.7%, 2014                                                  $   600,000    $    655,470
                             Massachusetts Industrial Finance Agency, Resource Recovery Rev.
                             (Ogden Haverhill Associates), 5.5%, 2013                                      25,000          26,113
                             Massachusetts Industrial Finance Agency, Resource Recovery Rev.
                             (Ogden Haverhill Associates), 5.6%, 2019                                   1,925,000       1,990,123
                                                                                                                     ------------
                                                                                                                     $  2,671,706
- ---------------------------------------------------------------------------------------------------------------------------------
State & Agency -             Massachusetts Development Finance Agency Rev., Visual & Performing
Other - 0.6%                 Arts Project, 6%, 2015                                                   $ 1,235,000    $  1,406,986
- ---------------------------------------------------------------------------------------------------------------------------------
State & Local Agencies -
2.6%                         Puerto Rico Public Finance Corp., RITES, AMBAC, 6.826%, 2016 (z)(v)      $ 2,500,000    $  3,033,700
                             University of Massachusetts, Building Authority Project, "1", AMBAC,
                             5.25%, 2023                                                                1,500,000       1,604,220
                             University of Massachusetts, Building Authority Project, "B", AMBAC,
                             5.5%, 2018                                                                 1,400,000       1,504,454
                                                                                                                     ------------
                                                                                                                     $  6,142,374
- ---------------------------------------------------------------------------------------------------------------------------------
Student Loan Revenue - 0.7%  Massachusetts Educational Financing Authority, Education Loan Rev.,
                             "E", AMBAC, 5%, 2015                                                     $    90,000    $     91,383
                             Massachusetts Educational Financing Authority, Education Loan Rev.,
                             "Issue E", AMBAC, 5.3%, 2016                                               1,490,000       1,513,021
                             Massachusetts Educational Financing Authority, Education Loan Rev.,
                             "Issue G", "A", MBIA, 6.05%, 2017                                             60,000          61,114
                                                                                                                     ------------
                                                                                                                     $  1,665,518
- ---------------------------------------------------------------------------------------------------------------------------------
Tax - Other - 2.0%           Virgin Islands Public Finance Authority Rev., "A", 5.5%, 2022            $ 2,950,000    $  3,057,115
                             Virgin Islands Public Finance Authority Rev., "E", 5.875%, 2018            1,420,000       1,495,345
                                                                                                                     ------------
                                                                                                                     $  4,552,460
- ---------------------------------------------------------------------------------------------------------------------------------
Tax Assessment - 3.5%        Massachusetts Bay Transportation Authority Assessment, "A",
                             5.25%, 2030                                                              $   615,000    $    641,980
                             Massachusetts Bay Transportation Authority Assessment, "A",
                             5.75%, 2010 (c)                                                            3,460,000       3,734,274
                             Massachusetts Bay Transportation Authority, "A", 5%, 2014 (c)              3,500,000       3,748,465
                                                                                                                     ------------
                                                                                                                     $  8,124,719
- ---------------------------------------------------------------------------------------------------------------------------------
Tobacco - 0.5%               Children's Trust Fund, Tobacco Settlement Rev., Puerto Rico,
                             5.375%, 2033                                                             $   675,000    $    691,949
                             Children's Trust Fund, Tobacco Settlement Rev., Puerto Rico,
                             5.5%, 2039                                                                   400,000         410,744
                             Children's Trust Fund, Tobacco Settlement Rev., Puerto Rico, "A",
                             0%, 2050                                                                   2,000,000         130,800
                                                                                                                     ------------
                                                                                                                     $  1,233,493
- ---------------------------------------------------------------------------------------------------------------------------------
Universities - Colleges -    Massachusetts College Building Authority Project Rev., "A", MBIA,
20.0%                        5.625%, 2009 (c)                                                         $ 1,650,000    $  1,759,610
                             Massachusetts College Building Authority Project Rev., "A", XLCA,
                             5.25%, 2023                                                                1,000,000       1,060,500
                             Massachusetts Development Finance Agency Rev. (Boston University),
                             XLCA, 6%, 2059                                                             1,500,000       1,781,820
                             Massachusetts Development Finance Agency Rev. (Hampshire College),
                             5.7%, 2034                                                                 1,000,000       1,047,930
                             Massachusetts Development Finance Agency Rev. (Massachusetts College
                             of Pharmacy), 6.625%, 2010 (c)                                                50,000          55,551
                             Massachusetts Development Finance Agency Rev. (Massachusetts College
                             of Pharmacy), "C", 5.75%, 2033                                             1,000,000       1,055,580
                             Massachusetts Development Finance Agency Rev. (Mount Holyoke
                             College), 5.125%, 2021                                                     1,000,000       1,051,670
                             Massachusetts Development Finance Agency Rev. (Suffolk University),
                             5.75%, 2009 (c)                                                            1,000,000       1,069,270
                             Massachusetts Development Finance Agency Rev. (Suffolk University),
                             5.85%, 2009 (c)                                                            1,000,000       1,072,290
                             Massachusetts Development Finance Agency Rev. (Western New England
                             College), 6.125%, 2032                                                     1,115,000       1,264,243
                             Massachusetts Development Finance Agency Rev., (Olin College), "B",
                             XLCA, 5.25%, 2033                                                          3,000,000       3,158,310
                             Massachusetts Development Finance Agency Rev., Higher Education
                             (Smith College), 5.5%, 2010 (c)                                            1,210,000       1,304,513
                             Massachusetts Development Finance Agency, (Clark University), "N",
                             XLCA, 5.125%, 2025                                                         1,500,000       1,576,485
                             Massachusetts Health & Educational Authority Rev. (University of
                             Massachusetts), "A", FGIC, 5.625%, 2010 (c)                                2,170,000       2,354,081
                             Massachusetts Health & Educational Facilities Authority Rev. (Boston
                             College), "K", 5.25%, 2023                                                 4,350,000       4,354,959
                             Massachusetts Health & Educational Facilities Authority Rev. (Simmons
                             College), "D", AMBAC, 6.05%, 2010 (c)                                      1,745,000       1,927,213
                             Massachusetts Health & Educational Facilities Authority Rev. (Simmons
                             College), "F", FGIC, 5%, 2023                                                500,000         524,160
                             Massachusetts Health & Educational Facilities Authority Rev.
                             (University of Massachusetts Worcester Campus), "B", FGIC,
                             5.125%, 2019                                                               1,780,000       1,879,591
                             Massachusetts Health & Educational Facilities Authority Rev.
                             (University of Massachusetts), "A", FGIC, 5.75%, 2010 (c)                  2,395,000       2,610,430
                             Massachusetts Health & Educational Facilities Authority Rev.
                             (University of Massachusetts), "A", FGIC, 5.85%, 2010 (c)                  1,200,000       1,312,860
                             Massachusetts Health & Educational Facilities Authority Rev.
                             (University of Massachusetts), "C", MBIA, 5.25%, 2031                      3,000,000       3,175,530
                             Massachusetts Health & Educational Facilities Authority Rev.
                             (University of Massachusetts), "D", FGIC, 5%, 2029                         1,500,000       1,556,715
                             Massachusetts Health & Educational Facilities Authority Rev.
                             (Wellesley College), "H", 5%, 2033                                         1,000,000       1,031,150
                             Massachusetts Health & Educational Facilities Authority Rev.
                             (Wheelock College), "B", MBIA, 5.5%, 2021                                  3,275,000       3,484,698
                             Massachusetts Health & Educational Facilities Authority Rev.
                             (Williams College), "H", 5%, 2028                                          1,000,000       1,038,670
                             Massachusetts Industrial Finance Agency Rev. (Brandeis University),
                             "C", MBIA, 0%, 2009                                                        1,000,000         870,350
                             Massachusetts Industrial Finance Agency Rev. (Brandeis University),
                             "C", MBIA, 0%, 2010                                                        1,000,000         831,620
                             Massachusetts Industrial Finance Agency Rev. (Brandeis University),
                             "C", MBIA, 0%, 2011                                                          500,000         397,790
                             Massachusetts State College Building Authority Project Rev., "A",
                             XLCA, 5%, 2043                                                             2,110,000       2,155,281
                                                                                                                     ------------
                                                                                                                     $ 46,762,870
- ---------------------------------------------------------------------------------------------------------------------------------
Universities - Secondary     Massachusetts Development Finance Agency Rev. (Deerfield Academy),
Schools - 4.6%                "A", 5%, 2028                                                           $ 1,000,000    $  1,037,590
                             Massachusetts Development Finance Agency Rev. (Williston Northampton
                             School), 6.5%, 2008 (c)                                                    1,300,000       1,410,487
                             Massachusetts Development Finance Agency Rev. (Xaverian Brothers High
                             School), 5.55%, 2019                                                       1,000,000       1,044,820
                             Massachusetts Development Finance Agency Rev. (Xaverian Brothers High
                             School), 5.65%, 2029                                                       1,000,000       1,035,840
                             Massachusetts Development Finance Agency Rev., Middlesex School
                             Education Project, 5.125%, 2023                                              500,000         528,505
                             Massachusetts Industrial Finance Agency Rev. (Belmont Hill School),
                             5.625%, 2020                                                               1,150,000       1,205,568
                             Massachusetts Industrial Finance Agency Rev. (Concord Academy),
                             5.5%, 2027                                                                 2,000,000       2,078,360
                             Massachusetts Industrial Finance Agency Rev. (Dana Hall School),
                             5.9%, 2007 (c)                                                             1,340,000       1,401,734
                             Massachusetts Industrial Finance Agency Rev. (Tabor Academy),
                             5.4%, 2018                                                                 1,000,000       1,051,330
                                                                                                                     ------------
                                                                                                                     $ 10,794,234
- ---------------------------------------------------------------------------------------------------------------------------------
Utilities - Investor         Massachusetts Development Finance Agency Dominion Energy Brayton
Owned - 0.9%                 Point, 5%, 2036                                                          $ 2,000,000    $  2,013,760
- ---------------------------------------------------------------------------------------------------------------------------------
Utilities - Municipal        Massachusetts Development Finance Agency Rev. (Devens Electric
Owned - 0.3%                 Systems), 5.625%, 2016                                                   $   725,000    $    766,934
- ---------------------------------------------------------------------------------------------------------------------------------
Water & Sewer Utility
Revenue - 6.3%               Massachusetts State Water Authority General, "A", MBIA, 5%, 2028         $   800,000    $    838,024
                             Massachusetts State Water Pollution Abatement Trust, (Pool Program
                             Bonds), "10", 5%, 2029                                                     1,000,000       1,039,960
                             Massachusetts State Water Pollution Abatement Trust, MWRA Program,
                             "A", 5%, 2032                                                              1,510,000       1,556,070
                             Massachusetts State Water Resources Authority, "B", MBIA, 5%, 2035         1,000,000       1,039,410
                             Massachusetts Water Pollution Abatement Trust (Pool Program Bonds),
                             "10", 5%, 2034                                                             1,000,000       1,035,030
                             Massachusetts Water Pollution Abatement Trust, Series "5",
                             5.75%, 2009 (c)                                                              975,000       1,047,101
                             Massachusetts Water Pollution Abatement Trust, Unrefunded Balance,
                             Series "5", 5.75%, 2017                                                       25,000          26,695
                             Massachusetts Water Resources Authority, "A", FGIC, 6%, 2010 (c)           1,000,000       1,097,040
                             Massachusetts Water Resources Authority, General, "J", FSA, 5%, 2023         500,000         520,290
                             Massachusetts Water Resources Authority, RITES, FGIC,
                             8.937%, 2019 (z)(v)                                                        4,010,000       5,522,011
                             Springfield, MA, Street & Sewer Commission, General, "A", AMBAC,
                             5%, 2021                                                                   1,000,000       1,051,860
                                                                                                                     ------------
                                                                                                                     $ 14,773,491
- ---------------------------------------------------------------------------------------------------------------------------------
  TOTAL MUNICIPAL BONDS (IDENTIFIED COST, $215,521,616)                                                              $229,175,371
- ---------------------------------------------------------------------------------------------------------------------------------
Floating Rate Demand Notes - 0.6%
- ---------------------------------------------------------------------------------------------------------------------------------
                             Jefferson County, AL, Sewer Rev., Capital Improvement Warrants, "A",
                             3.22%, due 4/06/06                                                       $   650,000    $    650,000
                             Jefferson County, AL, Sewer Rev., Warrants, "B-4", 3.22%, due 4/06/06        200,000         200,000
                             Triborough Bridge & Tunnel Authority, NY, Rev., "F",
                             3.16%, due 4/06/06                                                           700,000         700,000
- ---------------------------------------------------------------------------------------------------------------------------------
  TOTAL FLOATING RATE DEMAND NOTES, AT IDENTIFIED COST                                                               $  1,550,000
- ---------------------------------------------------------------------------------------------------------------------------------
  TOTAL INVESTMENTS (IDENTIFIED COST, $217,071,616)                                                                  $230,725,371
- ---------------------------------------------------------------------------------------------------------------------------------
Other Assets, Less Liabilities  - 1.4%                                                                                  3,190,258
- ---------------------------------------------------------------------------------------------------------------------------------
  NET ASSETS - 100.0%                                                                                                $233,915,629
- ---------------------------------------------------------------------------------------------------------------------------------

INTEREST RATE SWAPS


                              NOTIONAL PRINCIPAL                                                                  UNREALIZED
                                  AMOUNT OF               CASH FLOWS PAID                  CASH FLOWS            APPRECIATION
EXPIRATION        CURRENCY        CONTRACT                  BY THE FUND               RECEIVED BY THE FUND      (DEPRECIATION)
- ------------------------------------------------------------------------------------------------------------------------------
                                                                                                    
12/01/07             USD          $5,000,000              Fixed - 3 Year                 Floating - Day             $68,667
                                                      BMA Swap Index (2.795%)            BMA Swap Index
- ------------------------------------------------------------------------------------------------------------------------------
 6/06/16             USD           2,000,000              Fixed - 10 Year                Floating - 7 Day            10,603
                                                      BMA Swap Index (3.938%)            BMA Swap Index
- ------------------------------------------------------------------------------------------------------------------------------
 6/16/16             USD           3,000,000              Fixed - 10 Year                Floating - 7 Day             7,728
                                                      BMA Swap Index (3.977%)            BMA Swap Index
- ------------------------------------------------------------------------------------------------------------------------------
 7/13/16             USD           1,000,000              Fixed - 10 Year                Floating - 7 Day            21,024
                                                      BMA Swap Index (3.742%)            BMA Swap Index
- ------------------------------------------------------------------------------------------------------------------------------
 6/15/18             USD           5,000,000              Fixed - 12 Year                Floating - 7 Day            26,319
                                                      BMA Swap Index (4.019%)            BMA Swap Index
- ------------------------------------------------------------------------------------------------------------------------------
 8/02/21             USD           2,000,000              Fixed - 15 Year                Floating - 7 Day            31,962
                                                      BMA Swap Index (4.011%)            BMA Swap Index
- ------------------------------------------------------------------------------------------------------------------------------
 9/13/26             USD           2,250,000              Floating - 3 Month             Fixed - 20 Year            (34,867)
                                                      LIBOR Swap Index (4.900%)          LIBOR Swap Index
- ------------------------------------------------------------------------------------------------------------------------------
                                                                                                                   $131,436
                                                                                                                   ========

At March 31, 2006 the fund had sufficient cash and/or securities to cover any commitments under these derivative contracts.

The following abbreviations are used in the Portfolio of Investments and are defined:

         BMA         Bond Market Assn.
         COP         Certificate of Participation
         ETM         Escrowed to Maturity
         LIBOR       London Interbank Offered Rate
         LOC         Letter of Credit

         Insurers                                                         Inverse Floaters
         -------------------------------------------------------------------------------------------------------------------
         AMBAC       AMBAC Indemnity Corp.                                LEVRRS       Leveraged Reverse Rate Securities
         ASST GTY    Asset Guaranty Insurance Co.                         RIBS         Residual Interest Bonds
         CHFC        California Health Facilities Construction Program    RITES        Residual Interest Tax-Exempt Security
         CIFG        CDS IXIS Financial Guaranty                          ROLS         Residual Options Longs
         FGIC        Financial Guaranty Insurance Co.
         FHA         Federal Housing Administration
         FNMA        Federal National Mortgage Assn.
         FSA         Financial Security Assurance, Inc.
         GNMA        Government National Mortgage Assn.
         MBIA        MBIA Insurance Corp.
         XLCA        XL Capital Insurance Co.

Portfolio Footnotes:
(a) SEC Rule 144A restriction.
(c) Refunded bond.
(d) Non-income producing security - in default.
(v) Inverse floating rate security.
(z) Restricted securities (excluding 144A issues) are not registered under the Securities Act of 1933 and are subject to legal
    or contractual restrictions on resale. These securities generally may be resold in transactions exempt from registration or
    to the public if the securities are registered. Disposal of these securities may involve time-consuming negotiations and
    prompt sale at an acceptable price may be difficult. The funds hold the following restricted securities:



                                                                                                                CURRENT   TOTAL %
                                                                                ACQUISITION   ACQUISITION        MARKET    OF NET
FUND              SECURITY                                                             DATE          COST         VALUE    ASSETS
- ---------------------------------------------------------------------------------------------------------------------------------

Alabama           Guam Power Authority Rev., RITES, AMBAC, 6.565%, 2013             5/20/99    $  536,360   $   559,090
Fund              Guam Power Authority Rev., RITES, AMBAC, 6.065%, 2018             5/20/99     4,376,790     4,828,950
                  Puerto Rico Municipal Finance Agency, RITES, FSA,
                  7.101%, 2017                                                      1/06/00       469,080       567,820
                  Puerto Rico Public Finance Corp., RITES, AMBAC, 6.826%, 2013      9/30/99       509,110       591,270
                  Puerto Rico Public Finance Corp., RITES, AMBAC, 6.826%, 2016      3/31/99       569,030       606,740
- ---------------------------------------------------------------------------------------------------------------------------------
                  Total Restricted Securities                                                               $ 7,153,870      8.2%
                                                                                                            ===========      ====

Arkansas          Commonwealth of Puerto Rico, RITES, MBIA, 7.599%, 2020            3/30/00    $3,067,320   $ 3,463,440
Fund              Commonwealth of Puerto Rico, Infrastructure, RITES, ETM,
                  7.099%, 2019                                                     10/05/00     1,282,225     1,441,850
                  Puerto Rico Municipal Finance Agency, RITES, FSA,
                  7.101%, 2017                                                      1/06/00       689,548       834,695
                  Puerto Rico Municipal Finance Agency, RITES, FSA,
                  7.101%, 2018                                                      1/06/00     3,006,835     3,690,830
- ---------------------------------------------------------------------------------------------------------------------------------
                  Total Restricted Securities                                                               $ 9,430,815      7.1%
                                                                                                            ===========      ====

California        Commonwealth of Puerto Rico, ROLS, Series II R 124B, XLCA,
Fund              7.693%, 2017                                                     10/22/01    $1,816,140   $ 1,840,650
                  Commonwealth of Puerto Rico, ROLS, Series II R 184C, FGIC,
                  7.763%, 2020                                                      8/05/02     4,269,738     4,077,546
                  Los Angeles, CA, RITES, 6.519%, 2014                              7/20/99     5,672,548     6,433,788
                  Los Angeles, CA, Union School District, RITES, FSA,
                  6.519%, 2020                                                      3/04/03     5,808,100     5,692,700
                  Southern California Metropolitan Water District Rev., RITES,
                  7.542%, 2018                                                      5/07/01     5,819,300     6,313,500
                  State of California, RITES, "B", 7.519%, 2017                     1/03/00     1,230,275     1,459,750
                  University of California Rev., RITES, MBIA, 6.985%, 2016          5/21/99     5,783,273     6,052,663
- ---------------------------------------------------------------------------------------------------------------------------------
                  Total Restricted Securities                                                               $31,870,597      8.3%
                                                                                                            ===========      ====

Florida           Commonwealth of Puerto Rico, Highway & Transportation, ROLS,      4/25/03    $3,282,600   $ 3,185,200
Fund              Railroad II R 227 1, MBIA, 7.763%, 2020
                  Commonwealth of Puerto Rico, RITES, MBIA, 7.599%, 2019            3/30/00     1,030,240     1,154,480
                  State of Florida, RITES, 6.019%, 2017                             4/09/99     3,042,840     3,288,960
- ---------------------------------------------------------------------------------------------------------------------------------
                  Total Restricted Securities                                                               $ 7,628,640      8.9%
                                                                                                            ===========      ====

Georgia           Atlanta, GA, Water & Wastewater Rev., RITES, FGIC,
Fund              7.019%, 2016                                                      4/20/99    $4,668,400   $ 4,744,400
                  Puerto Rico Municipal Finance Agency, RITES, FSA,
                  8.108%, 2016                                                      1/06/00       519,760       583,340
- ---------------------------------------------------------------------------------------------------------------------------------
                  Total Restricted Securities                                                               $ 5,327,740      8.7%
                                                                                                            ===========      ====

Maryland          Guam Power Authority Rev., RITES, AMBAC, 6.565%, 2015             5/20/99    $1,760,909   $ 1,875,149
Fund              Puerto Rico Electric Power Authority Rev., RITES, FSA,
                  6.559%, 2015                                                      9/16/99     1,367,100     1,497,244
                  Puerto Rico Municipal Finance Agency, RITES, FSA,
                  7.101%, 2019                                                      1/06/00       905,080     1,135,640
                  Puerto Rico Public Finance Corp., RITES, AMBAC, 6.826%, 2013      9/30/99       509,110       591,270
                  Puerto Rico Public Finance Corp., RITES, AMBAC, 6.826%, 2016      3/31/99     1,729,851     1,844,490
- ---------------------------------------------------------------------------------------------------------------------------------
                  Total Restricted Securities                                                               $ 6,943,793      5.1%
                                                                                                            ===========      ====

Massachusetts     Dudley-Charlton, MA, Regional School District, RITES, FGIC,
Fund              6.542%, 2015                                                      5/05/99    $1,501,582   $ 1,618,617
                  Dudley-Charlton, MA, Regional School District, RITES, FGIC,
                  6.542%, 2016                                                      5/05/99     1,558,414     1,706,619
                  Dudley-Charlton, MA, Regional School District, RITES, FGIC,
                  6.542%, 2018                                                      5/05/99     1,687,884     1,888,517
                  Massachusetts Bay Transportation Authority, RITES,
                  8.389%, 2016                                                      4/19/00     5,484,534     6,193,828
                  Massachusetts Water Resources Authority, RITES, FGIC,
                  8.937%, 2019                                                      3/16/00     4,742,707     5,522,011
                  Puerto Rico Public Finance Corp., RITES, AMBAC, 6.826%, 2016      3/31/99     2,845,150     3,033,700
- ---------------------------------------------------------------------------------------------------------------------------------
                  Total Restricted Securities                                                               $19,963,292      8.5%
                                                                                                            ===========      ====
SEE NOTES TO FINANCIAL STATEMENTS




FINANCIAL STATEMENTS      STATEMENT OF ASSETS AND LIABILITIES

This statement represents your fund's balance sheet, which details the assets
and liabilities composing the total value of your fund.


                                                              ALABAMA         ARKANSAS       CALIFORNIA         FLORIDA
At 3/31/06                                                       FUND             FUND             FUND            FUND
                                                                                                
ASSETS
- -----------------------------------------------------------------------------------------------------------------------
Investments -
  Identified cost                                         $81,650,077     $124,462,930     $356,222,967     $81,513,329

  Unrealized appreciation (depreciation)                    4,241,019        7,049,689       19,678,789       3,494,396
- -----------------------------------------------------------------------------------------------------------------------
Total investments, at value                               $85,891,096     $131,512,619     $375,901,756     $85,007,725
Cash                                                           68,561            3,614              645          42,965
Receivable for investments sold                               620,000           34,203               --         525,204
Receivable for fund shares sold                                72,146          154,565          176,665          35,711
Interest receivable                                         1,291,220        1,888,314        4,885,004       1,526,804
Unrealized appreciation on interest rate swaps                 88,161          149,546          255,578          97,711
- -----------------------------------------------------------------------------------------------------------------------
Total assets                                              $88,031,184     $133,742,861     $381,219,648     $87,236,120
- -----------------------------------------------------------------------------------------------------------------------

LIABILITIES
- -----------------------------------------------------------------------------------------------------------------------
Distributions payable                                        $130,620         $212,967         $639,062        $159,705
Payable for investments purchased                                  --               --               --       1,200,000
Payable for fund shares reacquired                            130,265          668,836          292,150         406,663
Unrealized depreciation on interest rate swaps                 43,189           57,140          256,625          17,830
Payable to affiliates -
  Management fee                                                1,319            1,088            3,117             705
  Shareholder servicing costs                                   8,030            9,642           24,434           6,439
  Distribution and service fees                                   876            3,719           18,644             780
  Administrative services fee                                      54               56              113              46
Payable for independent trustees' compensation                 11,629           10,896           22,421          10,816
Accrued expenses and other liabilities                         58,320           63,070           88,793          61,017
- -----------------------------------------------------------------------------------------------------------------------
Total liabilities                                            $384,302       $1,027,414       $1,345,359      $1,864,001
- -----------------------------------------------------------------------------------------------------------------------
Net assets                                                $87,646,882     $132,715,447     $379,874,289     $85,372,119
- -----------------------------------------------------------------------------------------------------------------------

NET ASSETS CONSIST OF
- -----------------------------------------------------------------------------------------------------------------------
Paid-in capital                                           $83,359,647     $125,959,954     $362,138,585     $82,164,042
Unrealized appreciation (depreciation)
 on investments                                             4,285,991        7,142,095       19,677,742       3,574,277
Accumulated net realized gain (loss)
 on investments                                               159,426         (458,545)      (1,340,298)       (264,735)
Accumulated undistributed (distributions in
 excess of) net investment income                            (158,182)          71,943         (601,740)       (101,465)
- -----------------------------------------------------------------------------------------------------------------------
Net assets                                                $87,646,882     $132,715,447     $379,874,289     $85,372,119
- -----------------------------------------------------------------------------------------------------------------------




Statement of Assets and Liabilities - continued


                                                              ALABAMA         ARKANSAS       CALIFORNIA         FLORIDA
                                                                 FUND             FUND             FUND            FUND
                                                                                                
Net assets
Class A                                                   $74,203,651     $122,067,032     $291,656,588     $70,401,793
Class B                                                    13,443,231       10,648,415       58,337,772      14,970,326
Class C                                                            --               --       29,879,929              --
- -----------------------------------------------------------------------------------------------------------------------
Total net assets                                          $87,646,882     $132,715,447     $379,874,289     $85,372,119
- -----------------------------------------------------------------------------------------------------------------------
Shares of beneficial interest outstanding
Class A                                                     7,088,318       12,162,073       49,972,336       7,002,547
Class B                                                     1,284,386        1,059,820        9,991,128       1,489,014
Class C                                                            --               --        5,102,071              --
- -----------------------------------------------------------------------------------------------------------------------
Total shares of beneficial interest outstanding             8,372,704       13,221,893       65,065,535       8,491,561
- -----------------------------------------------------------------------------------------------------------------------
Class A shares
Net asset value per share
(net assets/shares of beneficial interest outstanding)         $10.47           $10.04            $5.84          $10.05
- -----------------------------------------------------------------------------------------------------------------------
Offering price per share (100/95.25Xnet
asset value per share)                                         $10.99           $10.54            $6.13          $10.55
- -----------------------------------------------------------------------------------------------------------------------
Class B shares
Net asset value and offering price per share
(net assets/shares of beneficial interest outstanding)         $10.47           $10.05            $5.84          $10.05
- -----------------------------------------------------------------------------------------------------------------------
Class C shares
Net asset value and offering price per share
(net assets/shares of beneficial interest outstanding)            $--              $--            $5.86             $--
- -----------------------------------------------------------------------------------------------------------------------

On sales of $100,000 or more, the offering price of Class A shares is reduced. A contingent deferred sales charge may be
imposed on redemptions of Class A, Class B and Class C shares.

SEE NOTES TO FINANCIAL STATEMENTS




Statement of Assets and Liabilities - continued


                                                              GEORGIA         MARYLAND    MASSACHUSETTS
At 3/31/06                                                       FUND             FUND             FUND
                                                                                  
ASSETS
- -------------------------------------------------------------------------------------------------------
Investments -
  Identified cost                                         $57,318,161     $125,232,764     $217,071,616
  Unrealized appreciation (depreciation)                    3,345,884        7,286,417       13,653,755
- -------------------------------------------------------------------------------------------------------
Total investments, at value                               $60,664,045     $132,519,181     $230,725,371
Cash                                                           54,250           10,346           75,124
Receivable for investments sold                                    --        1,990,060               --
Receivable for fund shares sold                                35,215          221,015           38,886
Interest receivable                                         1,049,860        1,811,021        3,518,806
Unrealized appreciation on interest rate swaps                 78,108          138,638          177,949
- -------------------------------------------------------------------------------------------------------
Total assets                                              $61,881,478     $136,690,261     $234,536,136
- -------------------------------------------------------------------------------------------------------
LIABILITIES
- -------------------------------------------------------------------------------------------------------
Distributions payable                                         $74,291         $195,558         $379,043
Payable for fund shares reacquired                            219,553           51,437           86,480
Unrealized depreciation on interest rate swaps                 11,627           26,358           46,513
Payable to affiliates -
  Management fee                                                2,973            1,117            1,921
  Shareholder servicing costs                                   5,163           11,472           14,333
  Distribution and service fees                                   624            2,134            2,899
  Administrative services fee                                      39               58               79
Payable for independent trustees' compensation                 13,270           16,074           16,494
Accrued expenses and other liabilities                         57,525           68,793           72,745
- -------------------------------------------------------------------------------------------------------
Total liabilities                                            $385,065         $373,001         $620,507
- -------------------------------------------------------------------------------------------------------
Net assets                                                $61,496,413     $136,317,260     $233,915,629
- -------------------------------------------------------------------------------------------------------
NET ASSETS CONSIST OF
- -------------------------------------------------------------------------------------------------------
Paid-in capital                                           $58,325,749     $129,113,504     $220,161,630
Unrealized appreciation (depreciation) on investments       3,412,365        7,398,697       13,785,191
Accumulated net realized gain (loss) on investments           (67,496)          75,408          446,067
Accumulated distributions in excess of net
investment income                                            (174,205)        (270,349)        (477,259)
- -------------------------------------------------------------------------------------------------------
Net assets                                                $61,496,413     $136,317,260     $233,915,629
- -------------------------------------------------------------------------------------------------------




Statement of Assets and Liabilities - continued


                                                              GEORGIA         MARYLAND    MASSACHUSETTS
                                                                 FUND             FUND             FUND
                                                                                  
Net assets
Class A                                                   $51,680,550     $115,306,646     $196,991,730
Class B                                                     9,815,863       21,010,614       36,923,899
- -------------------------------------------------------------------------------------------------------
Total net assets                                          $61,496,413     $136,317,260     $233,915,629
- -------------------------------------------------------------------------------------------------------
Shares of beneficial interest outstanding
Class A                                                     4,783,583       10,230,813       17,554,782
Class B                                                       905,305        1,865,219        3,285,201
- -------------------------------------------------------------------------------------------------------
Total shares of beneficial interest outstanding             5,688,888       12,096,032       20,839,983
- -------------------------------------------------------------------------------------------------------
Class A shares
Net asset value per share
(net assets/shares of beneficial interest outstanding)         $10.80           $11.27           $11.22
- -------------------------------------------------------------------------------------------------------
Offering price per share (100/95.25Xnet
asset value per share)                                         $11.34           $11.83           $11.78
- ----------------------------------------------------------------------------- -------------------------
Class B shares
Net asset value and offering price per share
(net assets/shares of beneficial interest outstanding)         $10.84           $11.26           $11.24
- -------------------------------------------------------------------------------------------------------

On sales of $100,000 or more, the offering price of Class A shares is reduced. A contingent deferred
sales charge may be imposed on redemptions of Class A and Class B shares.

SEE NOTES TO FINANCIAL STATEMENTS




FINANCIAL STATEMENTS      STATEMENT OF OPERATIONS

This statement describes how much your fund received in investment income and
paid in expenses. It also describes any gains or losses generated by fund
operations.


                                                              ALABAMA         ARKANSAS       CALIFORNIA         FLORIDA
                                                                 FUND             FUND             FUND            FUND

For year ended 3/31/06
                                                                                                 
NET INVESTMENT INCOME
- -----------------------------------------------------------------------------------------------------------------------
Interest                                                   $4,777,315       $7,059,394      $20,690,822      $4,431,057
- -----------------------------------------------------------------------------------------------------------------------
Expenses -
  Management fee                                             $502,775         $759,174       $2,142,271        $479,444
  Distribution and service fees                               335,896          222,686        1,165,659         132,855
  Shareholder servicing costs                                 136,331          184,594          526,298         121,782
  Administrative services fee                                  17,808           23,073           51,617          17,317
  Independent trustees' compensation                            5,020            7,545           15,656           5,433
  Custodian fee                                                34,535           47,487          160,938          38,608
  Shareholder communications                                    8,865           17,412           38,975          10,681
  Auditing fees                                                44,324           44,334           43,592          44,322
  Legal fees                                                    6,539            6,234           19,841           6,956
  Miscellaneous                                                38,979           44,217           61,870          48,050
- -----------------------------------------------------------------------------------------------------------------------
Total expenses                                             $1,131,072       $1,356,756       $4,226,717        $905,448
- -----------------------------------------------------------------------------------------------------------------------
  Fees paid indirectly                                         (7,220)         (11,458)         (51,458)         (8,011)
  Reduction of expenses by investment adviser                (230,537)        (345,913)        (976,123)       (218,447)
- -----------------------------------------------------------------------------------------------------------------------
Net expenses                                                 $893,315         $999,385       $3,199,136        $678,990
- -----------------------------------------------------------------------------------------------------------------------
Net investment income                                      $3,884,000       $6,060,009      $17,491,686      $3,752,067
- -----------------------------------------------------------------------------------------------------------------------
REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS
- -----------------------------------------------------------------------------------------------------------------------
Realized gain (loss) (identified cost basis) -
  Investment transactions                                    $262,160         $399,844      $(1,611,564)       $721,513
  Swap transactions                                           (29,612)         118,119          432,384          77,734
- -----------------------------------------------------------------------------------------------------------------------
Net realized gain (loss) on investments                      $232,548         $517,963      $(1,179,180)       $799,247
- -----------------------------------------------------------------------------------------------------------------------
Change in unrealized appreciation (depreciation) -
  Investments                                             $(1,547,321)     $(2,271,359)     $(1,078,662)    $(1,100,601)
  Swap transactions                                           (31,266)         (40,094)           9,311         (22,481)
- -----------------------------------------------------------------------------------------------------------------------
Net unrealized gain (loss) on investments                 $(1,578,587)     $(2,311,453)     $(1,069,351)    $(1,123,082)
- -----------------------------------------------------------------------------------------------------------------------
Net realized and unrealized gain (loss) on investments    $(1,346,039)     $(1,793,490)     $(2,248,531)      $(323,835)
- -----------------------------------------------------------------------------------------------------------------------
Change in net assets from operations                       $2,537,961       $4,266,519      $15,243,155      $3,428,232
- -----------------------------------------------------------------------------------------------------------------------
SEE NOTES TO FINANCIAL STATEMENTS




Statement of Operations - continued


                                                              GEORGIA         MARYLAND    MASSACHUSETTS
                                                                 FUND             FUND             FUND

For year ended 3/31/06
                                                                                  
NET INVESTMENT INCOME
- -------------------------------------------------------------------------------------------------------
Interest                                                   $3,398,968       $7,706,790      $12,547,081
- -------------------------------------------------------------------------------------------------------
Expenses -
  Management fee                                             $363,158         $798,552       $1,347,164
  Distribution and service fees                               250,537          659,530        1,111,313
  Shareholder servicing costs                                  93,229          213,835          345,799
  Administrative services fee                                  14,882           23,971           35,281
  Independent trustees' compensation                            5,915            9,684           15,175
  Custodian fee                                                28,411           57,213           89,527
  Shareholder communications                                    8,404           19,917           28,728
  Auditing fees                                                44,319           44,337           43,559
  Legal fees                                                    9,349            8,201            8,382
  Miscellaneous                                                44,357           46,892           52,730
- -------------------------------------------------------------------------------------------------------
Total expenses                                               $862,561       $1,882,132       $3,077,658
- -------------------------------------------------------------------------------------------------------
  Fees paid indirectly                                         (7,457)         (12,121)         (20,035)
  Reduction of expenses by investment adviser                (166,822)        (363,950)        (613,881)
- -------------------------------------------------------------------------------------------------------
Net expenses                                                 $688,282       $1,506,061       $2,443,742
- -------------------------------------------------------------------------------------------------------
Net investment income                                      $2,710,686       $6,200,729      $10,103,339
- -------------------------------------------------------------------------------------------------------
REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS
- -------------------------------------------------------------------------------------------------------
Realized gain (loss) (identified cost basis) -
  Investment transactions                                     $49,753         $584,002       $1,150,361
  Swap transactions                                            55,181           55,409          618,028
- -------------------------------------------------------------------------------------------------------
Net realized gain (loss) on investments                      $104,934         $639,411       $1,768,389
- -------------------------------------------------------------------------------------------------------
Change in unrealized appreciation (depreciation) -
  Investments                                             $(1,169,922)     $(2,711,507)     $(2,758,406)
  Swap transactions                                             1,406           83,165            5,430
- -------------------------------------------------------------------------------------------------------
Net unrealized gain (loss) on investments                 $(1,168,516)     $(2,628,342)     $(2,752,976)
- -------------------------------------------------------------------------------------------------------
Net realized and unrealized gain (loss) on investments    $(1,063,582)     $(1,988,931)       $(984,587)
- -------------------------------------------------------------------------------------------------------
Change in net assets from operations                       $1,647,104       $4,211,798       $9,118,752
- -------------------------------------------------------------------------------------------------------
SEE NOTES TO FINANCIAL STATEMENTS




FINANCIAL STATEMENTS      STATEMENT OF CHANGES IN NET ASSETS

The statement describes the increases and/or decreases in net assets resulting
from operations, any distributions, and any shareholder transactions.


                                                              ALABAMA         ARKANSAS       CALIFORNIA         FLORIDA
                                                                 FUND             FUND             FUND            FUND

For year ended 3/31/06
                                                                                                 
CHANGE IN NET ASSETS
FROM OPERATIONS
- -----------------------------------------------------------------------------------------------------------------------
Net investment income                                      $3,884,000       $6,060,009      $17,491,686      $3,752,067
Net realized gain (loss) on investments                       232,548          517,963       (1,179,180)        799,247
Net unrealized gain (loss) on investments                  (1,578,587)      (2,311,453)      (1,069,351)     (1,123,082)
- -----------------------------------------------------------------------------------------------------------------------
Change in net assets from operations                       $2,537,961       $4,266,519      $15,243,155      $3,428,232
- -----------------------------------------------------------------------------------------------------------------------
DISTRIBUTIONS DECLARED TO SHAREHOLDERS
- -----------------------------------------------------------------------------------------------------------------------
From net investment income
  Class A                                                 $(3,354,087)     $(5,605,194)    $(13,643,612)    $(3,110,488)
  Class B                                                    (517,644)        (401,413)      (2,512,572)       (644,130)
  Class C                                                          --               --       (1,210,439)             --
- -----------------------------------------------------------------------------------------------------------------------
From net realized gain on investments
  Class A                                                          --               --         (498,302)             --
  Class B                                                          --               --         (106,987)             --
  Class C                                                          --               --          (52,867)             --
- -----------------------------------------------------------------------------------------------------------------------
Total distributions declared to shareholders              $(3,871,731)     $(6,006,607)    $(18,024,779)    $(3,754,618)
- -----------------------------------------------------------------------------------------------------------------------
Change in net assets from fund share transactions         $(3,636,892)     $(3,878,943)    $(14,978,975)    $(1,765,570)
- -----------------------------------------------------------------------------------------------------------------------
Total change in net assets                                $(4,970,662)     $(5,619,031)    $(17,760,599)    $(2,091,956)
- -----------------------------------------------------------------------------------------------------------------------
NET ASSETS
- -----------------------------------------------------------------------------------------------------------------------
At beginning of period                                     92,617,544      138,334,478      397,634,888      87,464,075
At end of period                                          $87,646,882     $132,715,447     $379,874,289     $85,372,119
- -----------------------------------------------------------------------------------------------------------------------
Accumulated undistributed (distributions in excess
of) net investment income included in net assets
at end of period                                            $(158,182)         $71,943        $(601,740)      $(101,465)
- -----------------------------------------------------------------------------------------------------------------------
SEE NOTES TO FINANCIAL STATEMENTS




Statement of Changes in Net Assets - continued


                                                              GEORGIA         MARYLAND    MASSACHUSETTS
                                                                 FUND             FUND             FUND

For year ended 3/31/06
                                                                                  
CHANGE IN NET ASSETS
FROM OPERATIONS
- -------------------------------------------------------------------------------------------------------
Net investment income                                      $2,710,686       $6,200,729      $10,103,339
Net realized gain (loss) on investments                       104,934          639,411        1,768,389
Net unrealized gain (loss) on investments                  (1,168,516)      (2,628,342)      (2,752,976)
- -------------------------------------------------------------------------------------------------------
Change in net assets from operations                       $1,647,104       $4,211,798       $9,118,752
- -------------------------------------------------------------------------------------------------------
DISTRIBUTIONS DECLARED TO SHAREHOLDERS
- -------------------------------------------------------------------------------------------------------
From net investment income
  Class A                                                 $(2,297,243)     $(5,277,930)     $(8,657,757)
  Class B                                                    (404,404)        (856,271)      (1,391,165)
- -------------------------------------------------------------------------------------------------------
From net realized gain on investments
  Class A                                                          --         (725,708)        (709,997)
  Class B                                                          --         (137,622)        (137,074)
- -------------------------------------------------------------------------------------------------------
Total distributions declared to shareholders              $(2,701,647)     $(6,997,531)    $(10,895,993)
- -------------------------------------------------------------------------------------------------------
Change in net assets from fund share transactions         $(3,918,543)    $(10,873,307)    $(15,175,916)
- -------------------------------------------------------------------------------------------------------
Total change in net assets                                $(4,973,086)    $(13,659,040)    $(16,953,157)
- -------------------------------------------------------------------------------------------------------
NET ASSETS
- -------------------------------------------------------------------------------------------------------
At beginning of period                                     66,469,499      149,976,300      250,868,786
At end of period                                          $61,496,413     $136,317,260     $233,915,629
- -------------------------------------------------------------------------------------------------------
Accumulated distributions in excess of net investment
income included in net assets at end of period              $(174,205)       $(270,349)       $(477,259)
- -------------------------------------------------------------------------------------------------------
SEE NOTES TO FINANCIAL STATEMENTS




Statement of Changes in Net Assets - continued


                                                              ALABAMA         ARKANSAS       CALIFORNIA         FLORIDA
                                                                 FUND             FUND             FUND            FUND

For year ended 3/31/05
                                                                                                 
CHANGE IN NET ASSETS
OPERATIONS
- -----------------------------------------------------------------------------------------------------------------------
Net investment income                                      $4,102,325       $6,200,096      $19,346,992      $4,062,571
Net realized gain (loss) on investments                       319,870          (22,285)       2,695,657         541,384
Net unrealized gain (loss) on investments                  (2,318,426)      (3,569,522)     (10,450,536)     (2,131,974)
- -----------------------------------------------------------------------------------------------------------------------
Change in net assets from operations                       $2,103,769       $2,608,289      $11,592,113      $2,471,981
- -----------------------------------------------------------------------------------------------------------------------
DISTRIBUTIONS DECLARED TO SHAREHOLDERS
- -----------------------------------------------------------------------------------------------------------------------
From net investment income
  Class A                                                 $(3,487,315)     $(5,765,824)    $(14,446,017)    $(3,284,555)
  Class B                                                    (604,659)        (425,966)      (3,065,257)       (773,814)
  Class C                                                          --               --       (1,327,738)             --
- -----------------------------------------------------------------------------------------------------------------------
From net realized gain on investments
  Class A                                                    (270,143)              --               --              --
  Class B                                                     (56,021)              --               --              --
- -----------------------------------------------------------------------------------------------------------------------
Total distributions declared to shareholders              $(4,418,138)     $(6,191,790)    $(18,839,012)    $(4,058,369)
- -----------------------------------------------------------------------------------------------------------------------
Change in net assets from fund share transactions         $(3,110,948)     $(9,969,276)    $(30,697,704)   $(12,416,594)
- -----------------------------------------------------------------------------------------------------------------------
Redemption fees                                                   $--              $91           $1,866             $--
- -----------------------------------------------------------------------------------------------------------------------
Total change in net assets                                $(5,425,317)    $(13,552,686)    $(37,942,737)   $(14,002,982)
- -----------------------------------------------------------------------------------------------------------------------
NET ASSETS
- -----------------------------------------------------------------------------------------------------------------------
At beginning of period                                     98,042,861      151,887,164      435,577,625     101,467,057
At end of period                                          $92,617,544     $138,334,478     $397,634,888     $87,464,075
- -----------------------------------------------------------------------------------------------------------------------
Accumulated undistributed (distributions in excess
of) net investment income included in net assets
at end of period                                            $(164,995)         $26,928        $(715,580)       $(98,019)
- -----------------------------------------------------------------------------------------------------------------------
SEE NOTES TO FINANCIAL STATEMENTS




Statement of Changes in Net Assets - continued

                                                              GEORGIA         MARYLAND    MASSACHUSETTS
                                                                 FUND             FUND             FUND

For year ended 3/31/05
                                                                                  
CHANGE IN NET ASSETS
OPERATIONS
- -------------------------------------------------------------------------------------------------------
Net investment income                                      $2,859,534       $6,874,073      $11,220,830
Net realized gain (loss) on investments                       137,158          784,552          579,740
Net unrealized gain (loss) on investments                  (1,655,497)      (4,370,095)      (5,718,727)
- -------------------------------------------------------------------------------------------------------
Change in net assets from operations                       $1,341,195       $3,288,530       $6,081,843
- -------------------------------------------------------------------------------------------------------
DISTRIBUTIONS DECLARED TO SHAREHOLDERS
- -------------------------------------------------------------------------------------------------------
From net investment income
  Class A                                                 $(2,302,371)     $(5,719,390)     $(9,525,974)
  Class B                                                    (538,120)      (1,103,829)      (1,614,570)
- -------------------------------------------------------------------------------------------------------
From net realized gain on investments
  Class A                                                          --          (49,124)              --
  Class B                                                          --          (11,124)              --
- -------------------------------------------------------------------------------------------------------
Total distributions declared to shareholders              $(2,840,491)     $(6,883,467)    $(11,140,544)
- -------------------------------------------------------------------------------------------------------
Change in net assets from fund share transactions         $(4,449,674)    $(16,326,214)    $(15,249,895)
- -------------------------------------------------------------------------------------------------------
Redemption fees                                                   $61              $--             $926
- -------------------------------------------------------------------------------------------------------
Total change in net assets                                $(5,948,909)    $(19,921,151)    $(20,307,670)
- -------------------------------------------------------------------------------------------------------
NET ASSETS
- -------------------------------------------------------------------------------------------------------
At beginning of period                                     72,418,408      169,897,451      271,176,456
At end of period                                          $66,469,499     $149,976,300     $250,868,786
- -------------------------------------------------------------------------------------------------------
Accumulated distributions in excess of net investment
income included in net assets at end of period              $(183,007)       $(331,642)       $(514,536)
- -------------------------------------------------------------------------------------------------------
SEE NOTES TO FINANCIAL STATEMENTS




FINANCIAL STATEMENTS      FINANCIAL HIGHLIGHTS, MFS(R) ALABAMA MUNICIPAL BOND FUND

The financial highlights table is intended to help you understand the fund's financial performance for the past 5
years. Certain information reflects financial results for a single fund share. The total returns in the table represent
the rate by which an investor would have earned (or lost) on an investment in the fund share class (assuming
reinvestment of all distributions) held for the entire period. This information has been audited by the fund's
independent registered public accounting firm, whose report, together with the fund's financial statements, are
included in this report.


                                                                                YEARS ENDED 3/31
                                                          ------------------------------------------------------------
                                                              2006         2005         2004         2003         2002
CLASS A
                                                                                               
Net asset value, beginning of period                        $10.62       $10.88       $10.82       $10.31       $10.53
- ----------------------------------------------------------------------------------------------------------------------
INCOME (LOSS) FROM INVESTMENT OPERATIONS
- ----------------------------------------------------------------------------------------------------------------------
Net investment income (d)                                    $0.46        $0.48        $0.48        $0.48        $0.51
Net realized and unrealized gain (loss) on investments       (0.15)       (0.22)        0.06         0.54        (0.19)
- ----------------------------------------------------------------------------------------------------------------------
Total from investment operations                             $0.31        $0.26        $0.54        $1.02        $0.32
- ----------------------------------------------------------------------------------------------------------------------
LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS
- ----------------------------------------------------------------------------------------------------------------------
From net investment income                                  $(0.46)      $(0.48)      $(0.48)      $(0.50)      $(0.54)
From net realized gain on investments                           --        (0.04)          --        (0.01)          --
- ----------------------------------------------------------------------------------------------------------------------
Total distributions declared to shareholders                $(0.46)      $(0.52)      $(0.48)      $(0.51)      $(0.54)
- ----------------------------------------------------------------------------------------------------------------------
Net asset value, end of period                              $10.47       $10.62       $10.88       $10.82       $10.31
- ----------------------------------------------------------------------------------------------------------------------
Total return (%) (t)(s)(r)                                    2.97         2.40         5.11        10.06         3.05
- ----------------------------------------------------------------------------------------------------------------------
RATIOS (%) (TO AVERAGE NET ASSETS) AND
SUPPLEMENTAL DATA:
- ----------------------------------------------------------------------------------------------------------------------
Expenses before expense reductions (f)                        1.12         1.09         1.09         1.08         1.08
Expenses after expense reductions (f)                         0.87         0.84         0.88         0.88         0.88
Net investment income                                         4.37         4.46         4.38         4.49         4.87
Portfolio turnover                                               9           17           10           21           20
Net assets at end of period (000 Omitted)                  $74,204      $77,499      $80,704      $84,474      $83,146
- ----------------------------------------------------------------------------------------------------------------------


                                                                                YEARS ENDED 3/31
                                                          ------------------------------------------------------------
                                                              2006          2005         2004         2003        2002
CLASS B
                                                                                               
Net asset value, beginning of period                        $10.62       $10.88       $10.82       $10.31       $10.53
- ----------------------------------------------------------------------------------------------------------------------
INCOME (LOSS) FROM INVESTMENT OPERATIONS
- ----------------------------------------------------------------------------------------------------------------------
Net investment income (d)                                    $0.38        $0.40        $0.39        $0.40        $0.43
Net realized and unrealized gain (loss) on investments       (0.15)       (0.23)        0.07         0.54        (0.19)
- ----------------------------------------------------------------------------------------------------------------------
Total from investment operations                             $0.23        $0.17        $0.46        $0.94        $0.24
- ----------------------------------------------------------------------------------------------------------------------
LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS
- ----------------------------------------------------------------------------------------------------------------------
From net investment income                                  $(0.38)      $(0.39)      $(0.40)      $(0.42)      $(0.46)
From net realized gain on investments                           --        (0.04)          --        (0.01)          --
- ----------------------------------------------------------------------------------------------------------------------
Total distributions declared to shareholders                $(0.38)      $(0.43)      $(0.40)      $(0.43)      $(0.46)
- ----------------------------------------------------------------------------------------------------------------------
Net asset value, end of period                              $10.47       $10.62       $10.88       $10.82       $10.31
- ----------------------------------------------------------------------------------------------------------------------
Total return (%) (t)(s)(r)                                    2.20         1.63         4.32         9.14         2.38
- ----------------------------------------------------------------------------------------------------------------------
RATIOS (%) (TO AVERAGE NET ASSETS) AND
SUPPLEMENTAL DATA:
- ----------------------------------------------------------------------------------------------------------------------
Expenses before expense reductions (f)                        1.87         1.84         1.83         1.83         1.83
Expenses after expense reductions (f)                         1.62         1.59         1.63         1.63         1.63
Net investment income                                         3.61         3.71         3.63         3.74         4.09
Portfolio turnover                                               9           17           10           21           20
Net assets at end of period (000 Omitted)                  $13,443      $15,118      $17,339      $16,163      $13,579
- ----------------------------------------------------------------------------------------------------------------------
(d) Per share data are based on average shares outstanding.
(f) Ratios do not reflect reductions from fees paid indirectly.
(r) Certain expenses have been reduced without which performance would have been lower.
(s) From time to time the fund may receive proceeds from litigation settlements, without which performance would be
    lower.
(t) Total returns do not include any applicable sales charges.

SEE NOTES TO FINANCIAL STATEMENTS




FINANCIAL STATEMENTS      FINANCIAL HIGHLIGHTS, MFS(R) ARKANSAS MUNICIPAL BOND FUND

The financial highlights table is intended to help you understand the fund's financial performance for the past 5
years. Certain information reflects financial results for a single fund share. The total returns in the table represent
the rate by which an investor would have earned (or lost) on an investment in the fund share class (assuming
reinvestment of all distributions) held for the entire period. This information has been audited by the fund's
independent registered public accounting firm, whose report, together with the fund's financial statements, are
included in this report.


                                                                                YEARS ENDED 3/31
                                                          ------------------------------------------------------------
                                                              2006         2005         2004         2003         2002
CLASS A
                                                                                               
Net asset value, beginning of period                        $10.17       $10.41       $10.40        $9.97       $10.08
- ----------------------------------------------------------------------------------------------------------------------
INCOME (LOSS) FROM INVESTMENT OPERATIONS
- ----------------------------------------------------------------------------------------------------------------------
Net investment income (d)                                    $0.45        $0.45        $0.45        $0.47        $0.51
Net realized and unrealized gain (loss) on investments       (0.13)       (0.23)        0.01         0.46        (0.11)
- ----------------------------------------------------------------------------------------------------------------------
Total from investment operations                             $0.32        $0.22        $0.46        $0.93        $0.40
- ----------------------------------------------------------------------------------------------------------------------
LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS
- ----------------------------------------------------------------------------------------------------------------------
From net investment income                                  $(0.45)      $(0.46)      $(0.45)      $(0.50)      $(0.51)
- ----------------------------------------------------------------------------------------------------------------------
Net asset value, end of period                              $10.04       $10.17       $10.41       $10.40        $9.97
- ----------------------------------------------------------------------------------------------------------------------
Total return (%) (t)(s)(r)                                    3.17         2.14         4.53         9.51         4.06
- ----------------------------------------------------------------------------------------------------------------------
RATIOS (%) (TO AVERAGE NET ASSETS) AND
SUPPLEMENTAL DATA:
- ----------------------------------------------------------------------------------------------------------------------
Expenses before expense reductions (f)                        0.92         0.90         0.92         0.93         0.92
Expenses after expense reductions (f)                         0.67         0.65         0.72         0.73         0.72
Net investment income                                         4.45         4.47         4.31         4.59         5.05
Portfolio turnover                                              10           13           19           15           15
Net assets at end of period (000 Omitted)                 $122,067     $127,075     $139,333     $134,521     $119,328
- ----------------------------------------------------------------------------------------------------------------------


                                                                                YEARS ENDED 3/31
                                                          ------------------------------------------------------------
                                                              2006         2005         2004         2003         2002
CLASS B
                                                                                               
Net asset value, beginning of period                        $10.18       $10.42       $10.41        $9.98       $10.09
- ----------------------------------------------------------------------------------------------------------------------
INCOME (LOSS) FROM INVESTMENT OPERATIONS
- ----------------------------------------------------------------------------------------------------------------------
Net investment income (d)                                    $0.38        $0.38        $0.37        $0.39        $0.43
Net realized and unrealized gain (loss) on investments       (0.14)       (0.24)        0.01         0.46        (0.11)
- ----------------------------------------------------------------------------------------------------------------------
Total from investment operations                             $0.24        $0.14        $0.38        $0.85        $0.32
- ----------------------------------------------------------------------------------------------------------------------
LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS
- --------------------------------------------------------------------------------
From net investment income                                  $(0.37)      $(0.38)      $(0.37)      $(0.42)      $(0.43)
- ----------------------------------------------------------------------------------------------------------------------
Net asset value, end of period                              $10.05       $10.18       $10.42       $10.41        $9.98
- ----------------------------------------------------------------------------------------------------------------------
Total return (%) (t)(s)(r)                                    2.39         1.37         3.68         8.62         3.24
- ----------------------------------------------------------------------------------------------------------------------
RATIOS (%) (TO AVERAGE NET ASSETS) AND
SUPPLEMENTAL DATA:
- ----------------------------------------------------------------------------------------------------------------------
Expenses before expense reductions (f)                        1.69         1.66         1.73         1.74         1.70
Expenses after expense reductions (f)                         1.44         1.41         1.53         1.54         1.50
Net investment income                                         3.68         3.71         3.50         3.77         4.26
Portfolio turnover                                              10           13           19           15           15
Net assets at end of period (000 Omitted)                  $10,648      $11,259      $12,554      $12,049       $8,700
- ----------------------------------------------------------------------------------------------------------------------
Any redemption fees charged by the fund during the 2005 fiscal year resulted in a per share impact of less than $0.01.
(d) Per share data are based on average shares outstanding.
(f) Ratios do not reflect reductions from fees paid indirectly.
(r) Certain expenses have been reduced without which performance would have been lower.
(s) From time to time the fund may receive proceeds from litigation settlements, without which performance would be
    lower.
(t) Total returns do not include any applicable sales charges.

SEE NOTES TO FINANCIAL STATEMENTS




FINANCIAL STATEMENTS      FINANCIAL HIGHLIGHTS, MFS(R) CALIFORNIA MUNICIPAL BOND FUND

The financial highlights table is intended to help you understand the fund's financial performance for the past 5
years. Certain information reflects financial results for a single fund share. The total returns in the table represent
the rate by which an investor would have earned (or lost) on an investment in the fund share class (assuming
reinvestment of all distributions) held for the entire period. This information has been audited by the fund's
independent registered public accounting firm, whose report, together with the fund's financial statements, are
included in this report.


                                                                                YEARS ENDED 3/31
                                                          ------------------------------------------------------------
                                                              2006         2005         2004         2003         2002
CLASS A
                                                                                               
Net asset value, beginning of period                         $5.88        $5.98        $5.96        $5.70        $5.81
- ----------------------------------------------------------------------------------------------------------------------
INCOME (LOSS) FROM INVESTMENT OPERATIONS
- ----------------------------------------------------------------------------------------------------------------------
Net investment income (d)                                    $0.28        $0.29        $0.28        $0.28        $0.28
Net realized and unrealized gain (loss) on investments       (0.03)       (0.11)        0.02         0.27        (0.10)
- ----------------------------------------------------------------------------------------------------------------------
Total from investment operations                             $0.25        $0.18        $0.30        $0.55        $0.18
- ----------------------------------------------------------------------------------------------------------------------
LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS
- ----------------------------------------------------------------------------------------------------------------------
From net investment income                                  $(0.28)      $(0.28)      $(0.28)      $(0.29)      $(0.29)
From net realized gain on investments                        (0.01)          --           --           --           --
- ----------------------------------------------------------------------------------------------------------------------
Total distributions declared to shareholders                $(0.29)      $(0.28)      $(0.28)      $(0.29)      $(0.29)
- ----------------------------------------------------------------------------------------------------------------------
Net asset value, end of period                               $5.84        $5.88        $5.98        $5.96        $5.70
- ----------------------------------------------------------------------------------------------------------------------
Total return (%)(t)(s)(r)                                     4.22         3.14         5.22         9.79         3.11
- ----------------------------------------------------------------------------------------------------------------------
RATIOS (%) (TO AVERAGE NET ASSETS) AND
SUPPLEMENTAL DATA:
- ----------------------------------------------------------------------------------------------------------------------
Expenses before expense reductions (f)                        0.88         0.86         0.87         0.87         0.87
Expenses after expense reductions (f)                         0.63         0.61         0.67         0.67         0.67
Net investment income                                         4.69         4.91         4.71         4.73         4.87
Portfolio turnover                                               9           12            8           22           12
Net assets at end of period (000 Omitted)                 $291,656     $295,332     $314,108     $333,350     $305,699
- ----------------------------------------------------------------------------------------------------------------------


                                                                                YEARS ENDED 3/31
                                                          ------------------------------------------------------------
                                                              2006         2005         2004         2003         2002
CLASS B
                                                                                               
Net asset value, beginning of period                         $5.88        $5.98        $5.96        $5.70        $5.81
- ----------------------------------------------------------------------------------------------------------------------
INCOME (LOSS) FROM INVESTMENT OPERATIONS
- ----------------------------------------------------------------------------------------------------------------------
Net investment income (d)                                    $0.23        $0.25        $0.23        $0.23        $0.24
Net realized and unrealized gain (loss) on investments       (0.03)       (0.11)        0.03         0.27        (0.11)
- ----------------------------------------------------------------------------------------------------------------------
Total from investment operations                             $0.20        $0.14        $0.26        $0.50        $0.13
- ----------------------------------------------------------------------------------------------------------------------
LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS
- ----------------------------------------------------------------------------------------------------------------------
From net investment income                                  $(0.23)      $(0.24)      $(0.24)      $(0.24)      $(0.24)
From net realized gain on investments                        (0.01)          --           --           --           --
- ----------------------------------------------------------------------------------------------------------------------
Total distributions declared to shareholders                $(0.24)      $(0.24)      $(0.24)      $(0.24)      $(0.24)
- ----------------------------------------------------------------------------------------------------------------------
Net asset value, end of period                               $5.84        $5.88        $5.98        $5.96        $5.70
- ----------------------------------------------------------------------------------------------------------------------
Total return (%) (t)(s)(r)                                    3.44         2.38         4.38         8.93         2.30
- ----------------------------------------------------------------------------------------------------------------------
RATIOS (%) (TO AVERAGE NET ASSETS) AND
SUPPLEMENTAL DATA:-
- ----------------------------------------------------------------------------------------------------------------------
Expenses before expense reductions (f)                        1.64         1.59         1.67         1.66         1.65
Expenses after expense reductions (f)                         1.39         1.34         1.47         1.46         1.45
Net investment income                                         3.94         4.17         3.91         3.94         4.09
Portfolio turnover                                               9           12            8           22           12
Net assets at end of period (000 Omitted)                  $58,338      $69,142      $85,106      $98,888      $84,123
- ----------------------------------------------------------------------------------------------------------------------

SEE NOTES TO FINANCIAL STATEMENTS




FINANCIAL STATEMENTS      FINANCIAL HIGHLIGHTS, MFS(R) CALIFORNIA MUNICIPAL BOND FUND - CONTINUED


                                                                                YEARS ENDED 3/31
                                                          ------------------------------------------------------------
                                                              2006         2005         2004         2003         2002
CLASS C
                                                                                               
Net asset value, beginning of period                         $5.90        $6.00        $5.98        $5.72        $5.83
- ----------------------------------------------------------------------------------------------------------------------
INCOME (LOSS) FROM INVESTMENT OPERATIONS
- ----------------------------------------------------------------------------------------------------------------------
Net investment income (d)                                    $0.23        $0.24        $0.23        $0.23        $0.23
Net realized and unrealized gain (loss) on investments       (0.04)       (0.11)        0.02         0.27        (0.10)
- ----------------------------------------------------------------------------------------------------------------------
Total from investment operations                             $0.19        $0.13        $0.25        $0.50        $0.13
- ----------------------------------------------------------------------------------------------------------------------
LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS
- ----------------------------------------------------------------------------------------------------------------------
From net investment income                                  $(0.22)      $(0.23)      $(0.23)      $(0.24)      $(0.24)
From net realized gain on investments                        (0.01)          --           --           --           --
- ----------------------------------------------------------------------------------------------------------------------
Total distributions declared to shareholders                $(0.23)      $(0.23)      $(0.23)      $(0.24)      $(0.24)
- ----------------------------------------------------------------------------------------------------------------------
Net asset value, end of period                               $5.86        $5.90        $6.00        $5.98        $5.72
- ----------------------------------------------------------------------------------------------------------------------
Total return (%) (t)(s)(r)                                    3.29         2.22         4.27         8.78         2.17
- ----------------------------------------------------------------------------------------------------------------------
RATIOS (%) (TO AVERAGE NET ASSETS) AND
SUPPLEMENTAL DATA:
- ----------------------------------------------------------------------------------------------------------------------
Expenses before expense reductions (f)                        1.78         1.76         1.77         1.77         1.77
Expenses after expense reductions (f)                         1.53         1.51         1.56         1.57         1.57
Net investment income                                         3.79         4.01         3.81         3.83         3.97
Portfolio turnover                                               9           12            8           22           12
Net assets at end of period (000 Omitted)                  $29,880      $33,162      $36,363      $40,804      $35,022
- ----------------------------------------------------------------------------------------------------------------------
Any redemption fees charged by the fund during the 2004 and 2005 fiscal years resulted in a per share impact of less
than $0.01.
(d) Per share data are based on average shares outstanding.
(f) Ratios do not reflect reductions from fees paid indirectly.
(r) Certain expenses have been reduced without which performance would have been lower.
(s) From time to time the fund may receive proceeds from litigation settlements, without which performance would be
    lower.
(t) Total returns do not include any applicable sales charges.

SEE NOTES TO FINANCIAL STATEMENTS




FINANCIAL STATEMENTS      FINANCIAL HIGHLIGHTS, MFS(R) FLORIDA MUNICIPAL BOND FUND

The financial highlights table is intended to help you understand the fund's financial performance for the past 5
years. Certain information reflects financial results for a single fund share. The total returns in the table represent
the rate by which an investor would have earned (or lost) on an investment in the fund share class (assuming
reinvestment of all distributions) held for the entire period. This information has been audited by the fund's
independent registered public accounting firm, whose report, together with the fund's financial statements, are
included in this report.


                                                                                YEARS ENDED 3/31
                                                          ------------------------------------------------------------
                                                              2006         2005         2004         2003         2002
CLASS A
                                                                                               
Net asset value, beginning of period                        $10.09       $10.24       $10.19        $9.78        $9.95
- ----------------------------------------------------------------------------------------------------------------------
INCOME (LOSS) FROM INVESTMENT OPERATIONS
- ----------------------------------------------------------------------------------------------------------------------
Net investment income (d)                                    $0.45        $0.47        $0.47        $0.48        $0.50
Net realized and unrealized gain (loss) on investments       (0.04)       (0.15)        0.05         0.44        (0.16)
- ----------------------------------------------------------------------------------------------------------------------
Total from investment operations                             $0.41        $0.32        $0.52        $0.92        $0.34
- ----------------------------------------------------------------------------------------------------------------------
LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS
- ----------------------------------------------------------------------------------------------------------------------
From net investment income                                  $(0.45)      $(0.47)      $(0.47)      $(0.51)      $(0.51)
- ----------------------------------------------------------------------------------------------------------------------
Net asset value, end of period                              $10.05       $10.09       $10.24       $10.19        $9.78
- ----------------------------------------------------------------------------------------------------------------------
Total return (%) (t)(s)(r)                                    4.14         3.25         5.20         9.40         3.52
- ----------------------------------------------------------------------------------------------------------------------
RATIOS (%) (TO AVERAGE NET ASSETS) AND
SUPPLEMENTAL DATA:
- ----------------------------------------------------------------------------------------------------------------------
Expenses before expense reductions (f)                        0.89         0.82         0.85         0.82         0.83
Expenses after expense reductions (f)                         0.64         0.57         0.64         0.62         0.63
Net investment income                                         4.46         4.68         4.58         4.78         5.09
Portfolio turnover                                              17           18           31           27           16
Net assets at end of period (000 Omitted)                  $70,402      $69,082      $79,155      $86,045      $69,959
- ----------------------------------------------------------------------------------------------------------------------


                                                                                YEARS ENDED 3/31
                                                          ------------------------------------------------------------
                                                              2006         2005         2004         2003         2002
CLASS B
                                                                                               
Net asset value, beginning of period                        $10.09       $10.24       $10.19        $9.78        $9.95
- ----------------------------------------------------------------------------------------------------------------------
INCOME (LOSS) FROM INVESTMENT OPERATIONS
- ----------------------------------------------------------------------------------------------------------------------
Net investment income (d)                                    $0.38        $0.40        $0.39        $0.40        $0.43
Net realized and unrealized gain (loss) on investments       (0.04)       (0.16)        0.05         0.43        (0.17)
- ----------------------------------------------------------------------------------------------------------------------
Total from investment operations                             $0.34        $0.24        $0.44        $0.83        $0.26
- ----------------------------------------------------------------------------------------------------------------------
LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS
- ----------------------------------------------------------------------------------------------------------------------
From net investment income                                  $(0.38)      $(0.39)      $(0.39)      $(0.42)      $(0.43)
- ----------------------------------------------------------------------------------------------------------------------
Net asset value, end of period                              $10.05       $10.09       $10.24       $10.19        $9.78
- ----------------------------------------------------------------------------------------------------------------------
Total return (%) (t)(s)(r)                                    3.35         2.45         4.36         8.64         2.58
- ----------------------------------------------------------------------------------------------------------------------
RATIOS (%) (TO AVERAGE NET ASSETS) AND
SUPPLEMENTAL DATA:
- ----------------------------------------------------------------------------------------------------------------------
Expenses before expense reductions (f)                        1.65         1.59         1.64         1.62         1.63
Expenses after expense reductions (f)                         1.40         1.34         1.44         1.42         1.43
Net investment income                                         3.70         3.92         3.78         3.97         4.29
Portfolio turnover                                              17           18           31           27           16
Net assets at end of period (000 Omitted)                  $14,970      $18,382      $22,312      $25,175      $22,151
- ----------------------------------------------------------------------------------------------------------------------
(d) Per share data are based on average shares outstanding.
(f) Ratios do not reflect reductions from fees paid indirectly.
(r) Certain expenses have been reduced without which performance would have been lower.
(s) From time to time the fund may receive proceeds from litigation settlements, without which performance would be
    lower.
(t) Total returns do not include any applicable sales charges.

SEE NOTES TO FINANCIAL STATEMENTS




FINANCIAL STATEMENTS      FINANCIAL HIGHLIGHTS, MFS(R) GEORGIA MUNICIPAL BOND FUND

The financial highlights table is intended to help you understand the fund's financial performance for the past 5
years. Certain information reflects financial results for a single fund share. The total returns in the table represent
the rate by which an investor would have earned (or lost) on an investment in the fund share class (assuming
reinvestment of all distributions) held for the entire period. This information has been audited by the fund's
independent registered public accounting firm, whose report, together with the fund's financial statements, are
included in this report.


                                                                                YEARS ENDED 3/31
                                                          ------------------------------------------------------------
                                                              2006         2005         2004         2003         2002
CLASS A
                                                                                               
Net asset value, beginning of period                        $10.99       $11.22       $11.17       $10.63       $10.82
- ----------------------------------------------------------------------------------------------------------------------
INCOME (LOSS) FROM INVESTMENT OPERATIONS
- ----------------------------------------------------------------------------------------------------------------------
Net investment income (d)                                    $0.46        $0.48        $0.49        $0.49        $0.50
Net realized and unrealized gain (loss) on investments       (0.18)       (0.23)        0.05         0.55        (0.17)
- ----------------------------------------------------------------------------------------------------------------------
Total from investment operations                             $0.28        $0.25        $0.54        $1.04        $0.33
- ----------------------------------------------------------------------------------------------------------------------
LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS
- ----------------------------------------------------------------------------------------------------------------------
From net investment income                                  $(0.47)      $(0.48)      $(0.49)      $(0.50)      $(0.52)
- ----------------------------------------------------------------------------------------------------------------------
Net asset value, end of period                              $10.80       $10.99       $11.22       $11.17       $10.63
- ----------------------------------------------------------------------------------------------------------------------
Total return (%) (t)(s)(r)                                    2.53         2.27         4.93         9.97         3.03
- ----------------------------------------------------------------------------------------------------------------------
RATIOS (%) (TO AVERAGE NET ASSETS) AND
SUPPLEMENTAL DATA:
- ----------------------------------------------------------------------------------------------------------------------
Expenses before expense reductions (f)                        1.18         1.13         1.12         1.12         1.13
Expenses after expense reductions (f)                         0.93         0.88         0.91         0.92         0.93
Net investment income                                         4.22         4.35         4.35         4.43         4.67
Portfolio turnover                                               5           18           12           25           19
Net assets at end of period (000 Omitted)                  $51,681      $53,190      $55,659      $57,636      $54,179
- ----------------------------------------------------------------------------------------------------------------------


                                                                                YEARS ENDED 3/31
                                                          ------------------------------------------------------------
                                                              2006         2005         2004         2003         2002
CLASS B
                                                                                               
Net asset value, beginning of period                        $11.00       $11.23       $11.18       $10.64       $10.83
- ----------------------------------------------------------------------------------------------------------------------
INCOME (LOSS) FROM INVESTMENT OPERATIONS
- ----------------------------------------------------------------------------------------------------------------------
Net investment income (d)                                    $0.41        $0.40        $0.40        $0.40        $0.42
Net realized and unrealized gain (loss) on investments       (0.18)       (0.24)        0.06         0.56        (0.18)
- ----------------------------------------------------------------------------------------------------------------------
Total from investment operations                             $0.23        $0.16        $0.46        $0.96        $0.24
- ----------------------------------------------------------------------------------------------------------------------
LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS
- ----------------------------------------------------------------------------------------------------------------------
From net investment income                                  $(0.39)      $(0.39)      $(0.41)      $(0.42)      $(0.43)
- ----------------------------------------------------------------------------------------------------------------------
Net asset value, end of period                              $10.84       $11.00       $11.23       $11.18       $10.64
- ----------------------------------------------------------------------------------------------------------------------
Total return (%) (t)(s)(r)                                    2.05         1.51         4.15         9.15         2.26
- ----------------------------------------------------------------------------------------------------------------------
RATIOS (%) (TO AVERAGE NET ASSETS) AND
SUPPLEMENTAL DATA:
- ----------------------------------------------------------------------------------------------------------------------
Expenses before expense reductions (f)                        1.93         1.88         1.86         1.87         1.88
Expenses after expense reductions (f)                         1.68         1.63         1.66         1.67         1.68
Net investment income                                         3.72         3.60         3.60         3.68         3.91
Portfolio turnover                                               5           18           12           25           19
Net assets at end of period (000 Omitted)                   $9,816      $13,280      $16,759      $18,077      $16,031
- ----------------------------------------------------------------------------------------------------------------------
Any redemption fees charged by the fund during the 2004 and 2005 fiscal years resulted in a per share impact of less
than $0.01.
(d) Per share data are based on average shares outstanding.
(f) Ratios do not reflect reductions from fees paid indirectly.
(r) Certain expenses have been reduced without which performance would have been lower.
(s) From time to time the fund may receive proceeds from litigation settlements, without which performance would be
    lower.
(t) Total returns do not include any applicable sales charges.

SEE NOTES TO FINANCIAL STATEMENTS




FINANCIAL STATEMENTS      FINANCIAL HIGHLIGHTS, MFS(R) MARYLAND MUNICIPAL BOND FUND

The financial highlights table is intended to help you understand the fund's financial performance for the past 5
years. Certain information reflects financial results for a single fund share. The total returns in the table represent
the rate by which an investor would have earned (or lost) on an investment in the fund share class (assuming
reinvestment of all distributions) held for the entire period. This information has been audited by the fund's
independent registered public accounting firm, whose report, together with the fund's financial statements, are
included in this report.


                                                                                YEARS ENDED 3/31
                                                          ------------------------------------------------------------
                                                              2006         2005         2004         2003         2002
CLASS A
                                                                                               
Net asset value, beginning of period                        $11.49       $11.74       $11.69       $11.21       $11.35
- ----------------------------------------------------------------------------------------------------------------------
INCOME (LOSS) FROM INVESTMENT OPERATIONS
- ----------------------------------------------------------------------------------------------------------------------
Net investment income (d)                                    $0.50        $0.52        $0.51        $0.52        $0.54
Net realized and unrealized gain (loss) on investments       (0.15)       (0.25)        0.06         0.50        (0.14)
- ----------------------------------------------------------------------------------------------------------------------
Total from investment operations                             $0.35        $0.27        $0.57        $1.02        $0.40
- ----------------------------------------------------------------------------------------------------------------------
LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS
- ----------------------------------------------------------------------------------------------------------------------
From net investment income                                  $(0.50)      $(0.51)      $(0.52)      $(0.54)      $(0.54)
From net realized gain on investments                        (0.07)       (0.01)          --           --           --
- ----------------------------------------------------------------------------------------------------------------------
Total distributions declared to shareholders                $(0.57)      $(0.52)      $(0.52)      $(0.54)      $(0.54)
- ----------------------------------------------------------------------------------------------------------------------
Net asset value, end of period                              $11.27       $11.49       $11.74       $11.69       $11.21
- ----------------------------------------------------------------------------------------------------------------------
Total return (%) (t)(s)(r)                                    3.06         2.36         4.96         9.21         3.59
- ----------------------------------------------------------------------------------------------------------------------
RATIOS (%) (TO AVERAGE NET ASSETS) AND
SUPPLEMENTAL DATA:
- ----------------------------------------------------------------------------------------------------------------------
Expenses before expense reductions (f)                        1.19         1.14         1.17         1.15         1.15
Expenses after expense reductions (f)                         0.94         0.89         0.96         0.95         0.95
Net investment income                                         4.38         4.48         4.35         4.51         4.73
Portfolio turnover                                               9           12           21           12            8
Net assets at end of period (000 Omitted)                 $115,307     $124,261     $138,201     $138,666     $128,750
- ----------------------------------------------------------------------------------------------------------------------


                                                                                YEARS ENDED 3/31
                                                          ------------------------------------------------------------
                                                              2006         2005         2004         2003         2002
CLASS B
                                                                                               
Net asset value, beginning of period                        $11.49       $11.74       $11.68       $11.20       $11.34
- ----------------------------------------------------------------------------------------------------------------------
INCOME (LOSS) FROM INVESTMENT OPERATIONS
- ----------------------------------------------------------------------------------------------------------------------
Net investment income (d)                                    $0.43        $0.44        $0.43        $0.45        $0.46
Net realized and unrealized gain (loss) on investments       (0.17)       (0.25)        0.07         0.49        (0.13)
- ----------------------------------------------------------------------------------------------------------------------
Total from investment operations                             $0.26        $0.19        $0.50        $0.94        $0.33
- ----------------------------------------------------------------------------------------------------------------------
LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS
- ----------------------------------------------------------------------------------------------------------------------
From net investment income                                  $(0.42)      $(0.44)      $(0.44)      $(0.46)      $(0.47)
From net realized gain on investments                        (0.07)       (0.00)(w)       --           --           --
- ----------------------------------------------------------------------------------------------------------------------
Total distributions declared to shareholders                $(0.49)      $(0.44)      $(0.44)      $(0.46)      $(0.47)
- ----------------------------------------------------------------------------------------------------------------------
Net asset value, end of period                              $11.26       $11.49       $11.74       $11.68       $11.20
- ----------------------------------------------------------------------------------------------------------------------
Total return (%) (t)(s)(r)                                    2.30         1.69         4.37         8.52         2.92
- ----------------------------------------------------------------------------------------------------------------------
RATIOS (%) (TO AVERAGE NET ASSETS) AND
SUPPLEMENTAL DATA:
- ----------------------------------------------------------------------------------------------------------------------
Expenses before expense reductions (f)                        1.84         1.79         1.81         1.80         1.80
Expenses after expense reductions (f)                         1.59         1.54         1.61         1.60         1.60
Net investment income                                         3.72         3.83         3.70         3.86         4.08
Portfolio turnover                                               9           12           21           12            8
Net assets at end of period (000 Omitted)                  $21,011      $25,716      $31,697      $34,033      $31,542
- ----------------------------------------------------------------------------------------------------------------------
(d) Per share data are based on average shares outstanding.
(f) Ratios do not reflect reductions from fees paid indirectly.
(r) Certain expenses have been reduced without which performance would have been lower.
(s) From time to time the fund may receive proceeds from litigation settlements, without which performance would be
    lower.
(t) Total returns do not include any applicable sales charges.
(w) Per share amount was less than $0.01.

SEE NOTES TO FINANCIAL STATEMENTS




FINANCIAL STATEMENTS      FINANCIAL HIGHLIGHTS, MFS(R) MASSACHUSETTS MUNICIPAL BOND FUND

The financial highlights table is intended to help you understand the fund's financial performance for the past 5
years. Certain information reflects financial results for a single fund share. The total returns in the table represent
the rate by which an investor would have earned (or lost) on an investment in the fund share class (assuming
reinvestment of all distributions) held for the entire period. This information has been audited by the fund's
independent registered public accounting firm, whose report, together with the fund's financial statements, are
included in this report.


                                                                                YEARS ENDED 3/31
                                                          ------------------------------------------------------------
                                                              2006         2005         2004         2003         2002
CLASS A
                                                                                               
Net asset value, beginning of period                        $11.31       $11.52       $11.49       $10.90       $11.11
- ----------------------------------------------------------------------------------------------------------------------
INCOME (LOSS) FROM INVESTMENT OPERATIONS
- ----------------------------------------------------------------------------------------------------------------------
Net investment income (d)                                    $0.48        $0.51        $0.51        $0.52        $0.53
Net realized and unrealized gain (loss) on investments       (0.05)       (0.22)        0.03         0.60        (0.21)
- ----------------------------------------------------------------------------------------------------------------------
Total from investment operations                             $0.43        $0.29        $0.54        $1.12        $0.32
- ----------------------------------------------------------------------------------------------------------------------
LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS
- ----------------------------------------------------------------------------------------------------------------------
From net investment income                                  $(0.48)      $(0.50)      $(0.51)      $(0.53)      $(0.53)
From net realized gain on investments                        (0.04)          --           --           --           --
- ----------------------------------------------------------------------------------------------------------------------
Total distributions declared to shareholders                $(0.52)      $(0.50)      $(0.51)      $(0.53)      $(0.53)
- ----------------------------------------------------------------------------------------------------------------------
Net asset value, end of period                              $11.22       $11.31       $11.52       $11.49       $10.90
- ----------------------------------------------------------------------------------------------------------------------
Total return (%) (t)(s)(r)                                    3.83         2.63         4.82        10.42         2.93
- ----------------------------------------------------------------------------------------------------------------------
RATIOS (%) (TO AVERAGE NET ASSETS) AND
SUPPLEMENTAL DATA:
- ----------------------------------------------------------------------------------------------------------------------
Expenses before expense reductions (f)                        1.15         1.09         1.16         1.12         1.12
Expenses after expense reductions (f)                         0.90         0.84         0.95         0.92         0.92
Net investment income                                         4.23         4.48         4.39         4.56         4.73
Portfolio turnover                                              10           11           14           15           13
Net assets at end of period (000 Omitted)                 $196,992     $210,103     $224,923     $233,500     $210,269
- ----------------------------------------------------------------------------------------------------------------------


                                                                                YEARS ENDED 3/31
                                                          ------------------------------------------------------------
                                                              2006         2005         2004         2003         2002

CLASS B
                                                                                               
Net asset value, beginning of period                        $11.33       $11.54       $11.51       $10.92       $11.12
- ----------------------------------------------------------------------------------------------------------------------
INCOME (LOSS) FROM INVESTMENT OPERATIONS
- ----------------------------------------------------------------------------------------------------------------------
Net investment income (d)                                    $0.41        $0.43        $0.43        $0.44        $0.46
Net realized and unrealized gain (loss) on investments       (0.05)       (0.21)        0.04         0.60        (0.20)
- ----------------------------------------------------------------------------------------------------------------------
Total from investment operations                             $0.36        $0.22        $0.47        $1.04        $0.26
- ----------------------------------------------------------------------------------------------------------------------
LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS
- ----------------------------------------------------------------------------------------------------------------------
From net investment income                                  $(0.41)      $(0.43)      $(0.44)      $(0.45)      $(0.46)
From net realized gain on investments                        (0.04)          --           --           --           --
- ----------------------------------------------------------------------------------------------------------------------
Total distributions declared to shareholders                $(0.45)      $(0.43)      $(0.44)      $(0.45)      $(0.46)
- ----------------------------------------------------------------------------------------------------------------------
Net asset value, end of period                              $11.24       $11.33       $11.54       $11.51       $10.92
- ----------------------------------------------------------------------------------------------------------------------
Total return (%) (t)(s)(r)                                    3.16         1.97         4.14         9.69         2.35
- ----------------------------------------------------------------------------------------------------------------------
RATIOS (%) (TO AVERAGE NET ASSETS) AND
SUPPLEMENTAL DATA:
- ----------------------------------------------------------------------------------------------------------------------
Expenses before expense reductions (f)                        1.80         1.74         1.80         1.77         1.77
Expenses after expense reductions (f)                         1.55         1.49         1.60         1.57         1.57
Net investment income                                         3.58         3.83         3.74         3.91         4.13
Portfolio turnover                                              10           11           14           15           13
Net assets at end of period (000 Omitted)                  $36,924      $40,766      $46,253      $47,612      $37,487
- ----------------------------------------------------------------------------------------------------------------------
Any redemption fees charged by the fund during the 2004 and 2005 fiscal years resulted in a per share impact of less
than $0.01.
(d) Per share data are based on average shares outstanding.
(f) Ratios do not reflect reductions from fees paid indirectly.
(r) Certain expenses have been reduced without which performance would have been lower.
(s) From time to time the fund may receive proceeds from litigation settlements, without which performance would be
    lower.
(t) Total returns do not include any applicable sales charges.

SEE NOTES TO FINANCIAL STATEMENTS


NOTES TO FINANCIAL STATEMENTS

(1) BUSINESS AND ORGANIZATION

MFS Alabama Municipal Bond Fund (Alabama Fund), MFS Arkansas Municipal Bond
Fund (Arkansas Fund), MFS California Municipal Bond Fund (California Fund),
MFS Florida Municipal Bond Fund (Florida Fund), MFS Georgia Municipal Bond
Fund (Georgia Fund), MFS Maryland Municipal Bond Fund (Maryland Fund), and MFS
Massachusetts Municipal Bond Fund (Massachusetts Fund) are each a series of
MFS Municipal Series Trust (the trust). The trust is organized as a
Massachusetts business trust and is registered under the Investment Company
Act of 1940, as amended, as an open-end management investment company.

(2) SIGNIFICANT ACCOUNTING POLICIES

General - The preparation of financial statements in conformity with U.S.
generally accepted accounting principles requires management to make estimates
and assumptions that affect the reported amounts of assets and liabilities,
and disclosure of contingent assets and liabilities at the date of the
financial statements and the reported amounts of revenues and expenses during
the reporting period. Actual results could differ from those estimates.
Because each fund invests primarily in the securities of a single state and
its political subdivisions, each fund is vulnerable to the effects of changes
in the legal and economic environment of the particular state. Municipal
securities backed by current or anticipated revenues from a specific project
or specific assets can be negatively affected by the discontinuance of the
taxation supporting the projects or assets or the inability to collect
revenues for the project or from the assets. If the Internal Revenue Service
determines an issuer of a municipal security has not complied with applicable
tax requirements, the security could decline in value, interest from the
security could become taxable and the funds may be required to issue Forms
1099-DIV.

Investment Valuations - Debt instruments (other than short-term instruments),
including restricted debt instruments, are generally valued at an evaluated
bid price as reported by an independent pricing service. Values of debt
instruments obtained from pricing services can utilize both dealer-supplied
valuations and electronic data processing techniques which take into account
factors such as institutional-size trading in similar groups of securities,
yield, quality, coupon rate, maturity, type of issue, trading characteristics
and other market data. Short-term instruments with a maturity at issuance of
365 days or less are generally valued at amortized cost, which approximates
market value. Swaps are generally valued on the basis of quotations from
brokers and dealers. Securities and other assets generally valued on the basis
of information from an independent pricing service may also be valued on the
basis of information from brokers and dealers. When pricing-service
information or market quotations are not readily available, securities are
priced at fair value as determined under the direction of the Board of
Trustees.

Derivative Risk - Each fund may invest in derivatives for hedging or non-
hedging purposes. While hedging can reduce or eliminate losses, it can also
reduce or eliminate gains. When the funds use derivatives as an investment to
gain market exposure, or for hedging purposes, gains and losses from
derivative instruments may be substantially greater than the derivative's
original cost. Derivative instruments include swap agreements.

Swap Agreements - Each fund may enter into swap agreements. A swap is an
exchange of cash payments between the fund and another party. Net cash
payments are exchanged at specified intervals and are recorded as a realized
gain or loss in the Statement of Operations. The value of the swap is adjusted
daily and the change in value is recorded as unrealized appreciation or
depreciation in the Statement of Operations. Risks may arise upon entering
into these agreements from the potential inability of counterparties to meet
the terms of their contract and from unanticipated changes in the value of the
financial index on which the swap agreement is based.

Interest Rate Swap Agreements - Interest rate swap agreements are agreements
to exchange cash flows periodically based on a notional principal amount, such
as the exchange of fixed rate interest payments for floating rate interest
payments, which are based on a specific financial index, or the exchange of
two distinct floating rate payments. The net receivable or payable associated
with these payments is accrued daily and recorded as an unrealized gain or
loss, and any payments received or made are recorded as realized gains or
losses, in the Statement of Operations. The primary risk associated with
interest rate swap agreements is that unfavorable changes in the fluctuation
of interest rates could adversely impact the funds.

Short Term Fees - For purchases made on or after July 1, 2004 and before April
1, 2005, each fund charged a 2% redemption fee (which was retained by each
fund) on proceeds from Class A, Class B, and Class C shares redeemed or
exchanged within 5 business days following their acquisition (either by
purchase or exchange). Effective April 1, 2005, each fund will no longer
charge a redemption fee. See each fund's prospectus for details. Any
redemption fees charged are accounted for as an addition to paid-in capital.

Investment Transactions and Income - Investment transactions are recorded on
the trade date. Interest income is recorded on the accrual basis. All premium
and discount is amortized or accreted for financial statement purposes in
accordance with U.S. generally accepted accounting principles. All premium and
original issue discount is amortized or accreted for tax reporting purposes as
required by federal income tax regulations.

Each fund may receive proceeds from litigation settlements involving its
portfolio holdings. Any proceeds received are reflected in realized gain/loss
in the Statement of Operations, or in unrealized gain/loss if the security is
still held by the fund.

Legal fees and other related expenses incurred to preserve and protect the
value of a security owned are added to the cost of the security; other legal
fees are expensed. Capital infusions made directly to the security issuer,
which are generally non-recurring, incurred to protect or enhance the value of
high-yield debt securities, are reported as additions to the cost basis of the
security. Costs that are incurred to negotiate the terms or conditions of
capital infusions or that are expected to result in a plan of reorganization
are reported as realized losses. Ongoing costs incurred to protect or enhance
an investment, or costs incurred to pursue other claims or legal actions, are
expensed.

Fees Paid Indirectly - Each fund's custody fee is reduced according to an
arrangement that measures the value of cash deposited with the custodian by
each fund. This amount, for the year ended March 31, 2006, is shown as a
reduction of total expenses on the Statement of Operations.

Tax Matters and Distributions - Each fund intends to continue to qualify as a
regulated investment company, as defined under Subchapter M of the Internal
Revenue Code, and to distribute all of its taxable and tax-exempt income,
including realized capital gains. Accordingly, no provision for federal income
tax is required in the financial statements.

Distributions to shareholders are recorded on the ex-dividend date. Income and
capital gain distributions are determined in accordance with income tax
regulations, which may differ from generally accepted accounting principles.
Certain capital accounts in the financial statements are periodically adjusted
for permanent differences in order to reflect their tax character. These
adjustments have no impact on net assets or net asset value per share.
Temporary differences which arise from recognizing certain items of income,
expense, gain or loss in different periods for financial statement and tax
purposes will reverse at some time in the future. Distributions in excess of
net investment income or net realized gains are temporary overdistributions
for financial statement purposes resulting from differences in the recognition
or classification of income or distributions for financial statement and tax
purposes.

Book/tax differences primarily relate to expiration of capital loss
carryforwards, amortization and accretion of debt securities, defaulted bonds,
and treating a portion of the proceeds from redemptions as a distribution for
tax purposes.

The tax character of distributions declared to shareholders is as follows:




                                   ALABAMA       ARKANSAS     CALIFORNIA       FLORIDA       GEORGIA       MARYLAND  MASSACHUSETTS
YEAR ENDED MARCH 31, 2006             FUND           FUND           FUND          FUND          FUND           FUND           FUND
                                                                                                 
Ordinary income (including
any short-term capital gains)          $--            $--            $--       $49,709           $--            $--            $--
Tax-exempt income                3,871,731      6,006,607     17,366,623     3,704,909     2,701,647      6,134,201     10,048,922
Long-term capital gain                  --             --        658,156            --            --        863,330        847,071
- ----------------------------------------------------------------------------------------------------------------------------------
Total distributions             $3,871,731     $6,006,607    $18,024,779    $3,754,618    $2,701,647     $6,997,531    $10,895,993

YEAR ENDED MARCH 31, 2005
Ordinary income (including
any short-term capital gains)      $63,872       $214,789        $55,853           $--           $--       $70,072        $252,507
Tax-exempt income                4,028,102      5,977,001     18,783,159     4,058,369     2,840,491     6,753,147      10,888,037
Long-term capital gain             326,164             --             --            --            --        60,248              --
- ----------------------------------------------------------------------------------------------------------------------------------
Total distributions             $4,418,138     $6,191,790    $18,839,012    $4,058,369    $2,840,491    $6,883,467     $11,140,544

The federal tax cost and the tax basis components of distributable earnings were as follows:


                                   ALABAMA       ARKANSAS     CALIFORNIA       FLORIDA       GEORGIA       MARYLAND  MASSACHUSETTS
AS OF MARCH 31, 2006                  FUND           FUND           FUND          FUND          FUND           FUND           FUND
                                                                                                 
Cost of investments            $81,630,945   $124,419,290   $356,158,426   $81,513,307   $57,318,687   $125,156,444   $216,977,632
- ----------------------------------------------------------------------------------------------------------------------------------
Gross appreciation              $4,697,020     $7,185,673    $20,031,371    $3,634,491    $3,381,056     $7,506,728    $13,897,006
Gross depreciation                (436,869)       (92,344)      (288,041)     (140,073)      (35,698)      (143,991)      (149,267)
- ----------------------------------------------------------------------------------------------------------------------------------
Net unrealized appreciation
(depreciation)                  $4,260,151     $7,093,329    $19,743,330    $3,494,418    $3,345,358     $7,362,737    $13,747,739
Undistributed ordinary income          $--            $--            $--           $--           $--            $--       $372,024
Undistributed tax-exempt income    282,450        570,738        818,897       214,900        53,805        227,456        339,371
Undistributed long-term
capital gain                       140,902             --             --            --            --             --             --
Capital loss carryforwards              --       (501,285)    (1,402,103)     (264,149)      (66,666)            --             --
Post-October capital loss
deferral                                --             --             --            --            --             --        (18,421)
Other temporary differences       (396,268)      (407,289)    (1,424,420)     (237,092)     (161,833)      (386,437)      (686,714)

As of March 31, 2006, certain funds had available capital loss carryforwards to offset future realized gains. Such losses expire as
follows:


                                              ARKANSAS               CALIFORNIA                  FLORIDA                  GEORGIA
EXPIRATION DATE                                   FUND                     FUND                     FUND                     FUND
                                                                                                              
March 31, 2008                                     $--                $(229,685)                     $--                      $--
March 31, 2009                                      --                       --                       --                  (66,666)
March 31, 2010                                      --                       --                 (142,514)                      --
March 31, 2011                                      --                       --                 (121,635)                      --
March 31, 2012                                (501,285)                      --                       --                       --
March 31, 2014                                      --               (1,172,418)                      --                       --
- ---------------------------------------------------------------------------------------------------------------------------------

Total                                        $(501,285)             $(1,402,103)               $(264,149)                $(66,666)

Multiple Classes of Shares of Beneficial Interest - Each fund offers multiple classes of shares, which differ in their respective
distribution and service fees. All shareholders bear the common expenses of the fund based on the value of settled shares
outstanding of each class, without distinction between share classes. Dividends are declared separately for each class.
Differences in per share dividend rates are generally due to differences in separate class expenses. Class B shares will convert
to Class A shares approximately eight years after purchase.

(3) TRANSACTIONS WITH AFFILIATES

Investment Adviser - The trust has an investment advisory agreement with MFS to provide overall investment advisory and
administrative services, and general office facilities. The management fee is computed daily and paid monthly at an annual rate
of 0.55% of each fund's average daily net assets.

As part of a settlement agreement with the New York Attorney General concerning market timing and related matters, MFS has agreed
to reduce the management fee to 0.30% of each fund's average daily net assets for the period March 1, 2004 through February 28,
2009. For the year ended March 31, 2006, this waiver amounted to the following for each fund and is reflected as a reduction of
total expenses in the Statement of Operations.

          ALABAMA           ARKANSAS         CALIFORNIA            FLORIDA            GEORGIA           MARYLAND      MASSACHUSETTS
             FUND               FUND               FUND               FUND               FUND               FUND               FUND

         $229,879           $345,100           $973,826           $217,935           $166,435           $363,030           $612,409

The management fee incurred for the year ended March 31, 2006 was equivalent to an annual effective rate of 0.30% of the fund's
average daily net assets.

Distributor - MFS Fund Distributors, Inc. (MFD), a wholly owned subsidiary of MFS, as distributor, received the following amounts
for the year ended March 31, 2006, as its portion of the initial sales charge on sales of Class A shares of the funds.

          ALABAMA           ARKANSAS         CALIFORNIA            FLORIDA            GEORGIA           MARYLAND      MASSACHUSETTS
             FUND               FUND               FUND               FUND               FUND               FUND               FUND

          $21,270            $53,465            $87,854            $34,849            $19,343            $27,698            $46,201

The Board of Trustees has adopted a distribution plan for certain class shares pursuant to Rule 12b-1 of the Investment Company
Act of 1940.

Each fund's distribution plan provides that the fund will pay MFD for services provided by MFD and financial intermediaries in
connection with the distribution and servicing of certain share classes. One component of the plan is a distribution fee paid to
MFD and another component of the plan is a service fee paid to MFD. MFD may subsequently pay all, or a portion, of the
distribution and/or service fees to financial intermediaries.

DISTRIBUTION FEE PLAN TABLE:

                                                                                   CLASS A
                                          -----------------------------------------------------------------------------------------
                                                                                          TOTAL            ANNUAL      DISTRIBUTION
                                               DISTRIBUTION           SERVICE      DISTRIBUTION         EFFECTIVE       AND SERVICE
                                                   FEE RATE          FEE RATE           PLAN(1)           RATE(2)               FEE

Alabama Fund                                          0.10%             0.25%             0.35%             0.25%          $192,363
Arkansas Fund                                         0.10%             0.25%             0.35%             0.10%           127,022
California Fund                                       0.10%             0.25%             0.35%             0.10%           292,962
Florida Fund                                          0.10%             0.25%             0.35%             0.00%                --
Georgia Fund                                          0.10%             0.25%             0.35%             0.25%           135,068
Maryland Fund                                         0.10%             0.25%             0.35%             0.35%           426,576
Massachusetts Fund                                    0.10%             0.25%             0.35%             0.35%           720,392

                                                                                   CLASS B
                                          -----------------------------------------------------------------------------------------
                                                                                          TOTAL            ANNUAL      DISTRIBUTION
                                               DISTRIBUTION           SERVICE      DISTRIBUTION         EFFECTIVE       AND SERVICE
                                                   FEE RATE          FEE RATE           PLAN(1)           RATE(2)               FEE

Alabama Fund                                          0.75%             0.25%             1.00%             1.00%          $143,533
Arkansas Fund                                         0.75%             0.25%             1.00%             0.87%            95,664
California Fund                                       0.75%             0.25%             1.00%             0.86%           550,533
Florida Fund                                          0.75%             0.25%             1.00%             0.76%           132,855
Georgia Fund                                          0.75%             0.25%             1.00%             1.00%           115,469
Maryland Fund                                         0.75%             0.25%             1.00%             1.00%           232,954
Massachusetts Fund                                    0.75%             0.25%             1.00%             1.00%           390,921

                                                                                   CLASS C
                                          -----------------------------------------------------------------------------------------
                                                                                          TOTAL            ANNUAL      DISTRIBUTION
                                               DISTRIBUTION           SERVICE      DISTRIBUTION         EFFECTIVE       AND SERVICE
                                                   FEE RATE          FEE RATE           PLAN(1)           RATE(2)               FEE

California Fund                                       0.75%             0.25%             1.00%             1.00%          $322,164

                                        ALABAMA    ARKANSAS    CALIFORNIA       FLORIDA       GEORGIA      MARYLAND   MASSACHUSETTS
                                           FUND        FUND          FUND          FUND          FUND          FUND            FUND

Total Distribution and Service Fees    $335,896    $222,686    $1,165,659      $132,855      $250,537      $659,530      $1,111,313

(1) In accordance with the distribution plan for certain classes, each fund pays distribution and/or service fees up to these
    annual percentage rates of each class' average daily net assets.
(2) The annual effective rates represent actual fees incurred under the distribution plan for the year ended March 31, 2006 based
    on each class' average daily net assets. Payment of the Alabama Fund's, Arkansas Fund's, California Fund's, Florida Fund's,
    and Georgia Fund's 0.10% annual Class A distribution fee is not yet implemented and will commence on such date as the Trustees
    of the Trust may determine. Payment of Florida Fund's 0.25% annual Class A service fee is not yet implemented and will
    commence on such date as the Trustees of the Trust may determine. Payment of Arkansas Fund's and California Fund's 0.10% of
    the Class A service fee is currently being paid by each fund, payment of the remaining 0.15% of the Class A service fee is not
    yet implemented and will commence on such date as the Trustees of the Trust may determine. Except in the case of the 0.25%
    annual Class B service fee paid by the Florida Fund upon the sale of Class B shares in the first year, payment of the Class B
    service fee will not be implemented until such date as the Trustees of the Trust may determine. Except in the case of the
    0.25% annual Class B service fee paid by Arkansas Fund and California Fund upon the sale of Class B shares in the first year,
    the Class B service fee has been set at 0.10% annually and may be increased to a maximum of 0.25% annually on such date as the
    Trustees of the Trust may determine.

Certain Class A and Class C shares are subject to a contingent deferred sales charge in the event of a shareholder redemption
within 12 months of purchase. Class B shares are subject to a contingent deferred sales charge in the event of a shareholder
redemption within six years of purchase. All contingent deferred sales charges are paid to MFD and during the year ended March 31,
2006, were as follows:

                                         ALABAMA      ARKANSAS    CALIFORNIA   FLORIDA       GEORGIA      MARYLAND   MASSACHUSETTS
CDSC IMPOSED                                FUND          FUND          FUND      FUND          FUND          FUND            FUND

Class A                                      $--           $--        $6,153    $4,160           $--           $--              $--
Class B                                   18,376        25,043       105,552    38,519        28,884        41,816           70,385
Class C                                      N/A           N/A         2,560       N/A           N/A           N/A              N/A

Shareholder Servicing Agent - Each fund pays a portion of shareholder servicing costs to MFS Service Center, Inc. (MFSC), a
wholly-owned subsidiary of MFS. MFSC receives a fee from the funds, for its services as shareholder servicing agent, set
periodically under the supervision of the funds' Board of Trustees. For the year ended March 31, 2006, each fund paid MFSC the
following fee, which equated to the following annual percentage of each fund's average daily net assets for shareholder services.

                                        ALABAMA      ARKANSAS    CALIFORNIA    FLORIDA       GEORGIA      MARYLAND   MASSACHUSETTS
                                           FUND          FUND          FUND       FUND          FUND          FUND            FUND

Expenses Paid                           $96,310      $145,503      $410,922    $91,868       $69,126      $153,392        $258,652
Percentage of average daily net assets  0.1055%       0.1054%       0.1055%    0.1054%       0.1054%       0.1057%         0.1056%

MFSC also receives payment from the funds for out-of-pocket and sub-accounting expenses paid by MFSC on behalf of the funds. For
the year ended March 31, 2006, these costs amounted to the following:

                                         ALABAMA      ARKANSAS    CALIFORNIA   FLORIDA       GEORGIA      MARYLAND   MASSACHUSETTS
                                            FUND          FUND          FUND      FUND          FUND          FUND            FUND

                                         $36,425       $33,428       $95,308   $25,167       $20,942       $51,227          $74,238

Administrator - MFS provides certain financial, legal, shareholder communications, compliance, and other administrative services
to certain funds for which MFS acts as investment adviser. Under an administrative services agreement, the funds may partially
reimburse MFS the costs incurred to provide these services, subject to review and approval by the Board of Trustees. Each fund is
charged a fixed amount plus a fee based on calendar year average net assets. Effective July 1, 2005, each fund's annual fixed
amount is $10,000. The administrative services fee incurred for the year ended March 31, 2006 was equivalent to the following
annual effective rates of each fund's average daily net assets:

                                         ALABAMA      ARKANSAS    CALIFORNIA   FLORIDA       GEORGIA      MARYLAND   MASSACHUSETTS
                                            FUND          FUND          FUND      FUND          FUND          FUND            FUND

Percentage of average daily net assets   0.0195%       0.0167%       0.0133%   0.0199%       0.0227%       0.0165%         0.0144%

Trustees' and Officers' Compensation - Each fund pays compensation to Independent Trustees in the form of a retainer, attendance
fees, and additional compensation to Board and Committee chairpersons. The funds do not pay compensation directly to Trustees who
are officers of the investment adviser, or to officers of each fund, all of whom receive remuneration for their services to the
funds from MFS. Certain officers and Trustees of the funds are officers or directors of MFS, MFD, and MFSC.

Each fund has an unfunded, defined benefit plan for retired Independent Trustees which resulted in the following pension expense
for the funds. These amounts are included in Independent trustees' compensation for the year ended March 31, 2006.

                                        ALABAMA      ARKANSAS    CALIFORNIA    FLORIDA       GEORGIA      MARYLAND   MASSACHUSETTS
                                           FUND          FUND          FUND       FUND          FUND          FUND            FUND

                                         $1,590        $1,388        $3,363     $1,384        $1,597        $3,093          $3,135

The deferred liability for retirement benefits payable to retired Trustees amounted to the following for each fund at March 31,
2006, and is included in payable for independent trustees' compensation.

                                        ALABAMA      ARKANSAS    CALIFORNIA    FLORIDA       GEORGIA      MARYLAND   MASSACHUSETTS
                                           FUND          FUND          FUND       FUND          FUND          FUND            FUND

                                        $11,185       $10,659       $21,323    $10,645       $12,819       $15,431         $15,354

Other - These funds and certain other MFS funds (the funds) have entered into a services agreement (the Agreement) which provides
for payment of fees by the funds to Tarantino LLC in return for the provision of services of an Independent Chief Compliance
Officer (ICCO) for the funds. The ICCO is an officer of the funds and the sole member of Tarantino LLC. The funds can terminate
the Agreement with Tarantino LLC at any time under the terms of the Agreement. For the year ended March 31, 2006, the fees paid to
Tarantino LLC amounted to the following:

                                        ALABAMA      ARKANSAS    CALIFORNIA    FLORIDA       GEORGIA      MARYLAND   MASSACHUSETTS
                                           FUND          FUND          FUND       FUND          FUND          FUND            FUND

                                           $699          $926        $2,627       $582          $439          $975          $1,655

MFS has agreed to reimburse the funds for a portion of the payments made by each fund to Tarantino LLC in the following amounts,
which are shown as a reduction of total expenses in the Statement of Operations. Additionally, MFS has agreed to bear all expenses
associated with office space, other administrative support, and supplies provided to the ICCO.

                                        ALABAMA      ARKANSAS    CALIFORNIA    FLORIDA       GEORGIA      MARYLAND   MASSACHUSETTS
                                           FUND          FUND          FUND       FUND          FUND          FUND            FUND

                                           $658          $813        $2,297       $512          $387          $920          $1,472

(4) PORTFOLIO SECURITIES

Purchases and sales of investments, other than U.S. government securities, purchased option transactions, and short-term
obligations were as follows:

                                    ALABAMA      ARKANSAS    CALIFORNIA       FLORIDA       GEORGIA      MARYLAND   MASSACHUSETTS
                                       FUND          FUND          FUND          FUND          FUND          FUND            FUND

Purchases                        $8,044,469   $12,862,683   $35,732,650   $14,429,891    $3,481,046   $12,856,377     $24,674,924
- ---------------------------------------------------------------------------------------------------------------------------------
Sales                           $10,510,710   $15,604,340   $52,726,768   $15,254,182    $6,137,950   $25,647,080     $35,741,140
- ---------------------------------------------------------------------------------------------------------------------------------

(5) SHARES OF BENEFICIAL INTEREST

The Trust's Declaration permits the Trustees to issue an unlimited number of full and fractional shares of beneficial interest.
Transactions in each funds' shares were as follows:

                                             ALABAMA FUND                                          ARKANSAS FUND
                        ------------------------------------------------------  ---------------------------------------------------
                                YEAR ENDED                  YEAR ENDED                 YEAR ENDED                 YEAR ENDED
                              MARCH 31, 2006              MARCH 31, 2005             MARCH 31, 2006             MARCH 31, 2005
                        --------------------------  --------------------------  -------------------------  ------------------------
                          SHARES        AMOUNT        SHARES        AMOUNT        SHARES        AMOUNT       SHARES       AMOUNT
Shares sold
Class A                    453,164     $4,807,670      633,888     $6,775,648    1,098,066   $11,184,396     995,533   $10,203,706
Class B                     47,894        508,335      139,584      1,483,702      127,141     1,292,625     131,045     1,342,758
- -----------------------------------------------------------------------------------------------------------------------------------
                           501,058     $5,316,005      773,472     $8,259,350    1,225,207   $12,477,021   1,126,578   $11,546,464

Shares issued to shareholders in reinvestment of distributions

Class A                    183,725     $1,948,887      228,052     $2,438,067      306,870    $3,122,224     373,158    $3,817,869
Class B                     27,249        289,073       37,666        402,644       24,788       252,510      27,514       281,798
- -----------------------------------------------------------------------------------------------------------------------------------
                           210,974     $2,237,960      265,718     $2,840,711      331,658    $3,374,734     400,672    $4,099,667

Shares reacquired

Class A                   (842,942)   $(8,923,169)    (983,413)  $(10,502,049)  (1,743,455) $(17,710,230) (2,249,074) $(22,990,694)
Class B                   (213,823)    (2,267,688)    (347,499)    (3,708,960)    (198,441)   (2,020,468)   (256,542)   (2,624,713)
- -----------------------------------------------------------------------------------------------------------------------------------
                        (1,056,765)  $(11,190,857)  (1,330,912)  $(14,211,009)  (1,941,896) $(19,730,698) (2,505,616) $(25,615,407)

Net change
Class A                   (206,053)   $(2,166,612)    (121,473)   $(1,288,334)    (338,519)  $(3,403,610)   (880,383)  $(8,969,119)
Class B                   (138,680)    (1,470,280)    (170,249)    (1,822,614)     (46,512)     (475,333)    (97,983)   (1,000,157)
- -----------------------------------------------------------------------------------------------------------------------------------
                          (344,733)   $(3,636,892)    (291,722)   $(3,110,948)    (385,031)  $(3,878,943)   (978,366)  $(9,969,276)

                                          CALIFORNIA FUND                                         FLORIDA FUND
                       ------------------------------------------------------  ---------------------------------------------------
                               YEAR ENDED                  YEAR ENDED                 YEAR ENDED                 YEAR ENDED
                             MARCH 31, 2006              MARCH 31, 2005             MARCH 31, 2006             MARCH 31, 2005

                       --------------------------  --------------------------  -------------------------  ------------------------
                         SHARES        AMOUNT        SHARES        AMOUNT        SHARES        AMOUNT       SHARES       AMOUNT
Shares sold

Class A                 5,540,422    $32,768,817    3,679,642    $21,728,685    1,343,743   $13,639,634     971,884     $9,841,457
Class B                   341,572      2,022,416      386,452      2,273,545      116,876     1,188,551     190,084      1,920,916
Class C                   501,717      2,981,705      642,391      3,786,792           --            --          --             --
- -----------------------------------------------------------------------------------------------------------------------------------
                        6,383,711    $37,772,938    4,708,485    $27,789,022    1,460,619   $14,828,185   1,161,968    $11,762,373

Shares issued to shareholders in reinvestment of distributions

Class A                 1,269,372     $7,511,470    1,398,671     $8,246,933      142,752    $1,450,063     164,846     $1,665,046
Class B                   262,673      1,555,229      330,068      1,945,699       27,817       282,641      36,036        363,956
Class C                   129,873        771,330      147,165        870,734           --            --          --             --
- -----------------------------------------------------------------------------------------------------------------------------------
                        1,661,918     $9,838,029    1,875,904    $11,063,366      170,569    $1,732,704     200,882     $2,029,002

Shares reacquired

Class A                (7,053,114)  $(41,766,637)  (7,403,226)  $(43,515,183)  (1,327,818) $(13,490,043) (2,025,356) $ (20,328,622)
Class B                (2,363,896)   (14,014,351)  (3,197,035)   (18,786,884)    (476,733)   (4,836,416)   (584,841)    (5,879,347)
Class C                (1,149,084)    (6,808,954)  (1,232,114)    (7,248,025)          --            --          --             --
- -----------------------------------------------------------------------------------------------------------------------------------
                      (10,566,094)  $(62,589,942) (11,832,375)  $(69,550,092)  (1,804,551) $(18,326,459) (2,610,197) $ (26,207,969)

Net change

Class A                  (243,320)   $(1,486,350)  (2,324,913)  $(13,539,565)     158,677    $1,599,654    (888,626)   $(8,822,119)
Class B                (1,759,651)   (10,436,706)  (2,480,515)   (14,567,640)    (332,040)   (3,365,224)   (358,721)    (3,594,475)
Class C                  (517,494)    (3,055,919)    (442,558)    (2,590,499)          --            --          --             --
- -----------------------------------------------------------------------------------------------------------------------------------
                       (2,520,465)  $(14,978,975)  (5,247,986)  $(30,697,704)    (173,363)  $(1,765,570)  (1,247,347) $(12,416,594)

                                             GEORGIA FUND                                          MARYLAND FUND
                        ------------------------------------------------------  ---------------------------------------------------
                                YEAR ENDED                  YEAR ENDED                 YEAR ENDED                 YEAR ENDED
                              MARCH 31, 2006              MARCH 31, 2005             MARCH 31, 2006             MARCH 31, 2005
                        --------------------------  --------------------------  -------------------------  ------------------------
                          SHARES        AMOUNT        SHARES        AMOUNT        SHARES        AMOUNT       SHARES       AMOUNT
Shares sold

Class A                    460,892     $5,066,357      329,030     $3,641,888      730,679    $8,394,007     580,758    $6,707,670
Class B                     28,232        312,944       33,020        365,147       83,527       958,062     101,049     1,161,791
- -----------------------------------------------------------------------------------------------------------------------------------
                           489,124     $5,379,301      362,050     $4,007,035      814,206    $9,352,069     681,807    $7,869,461

Shares issued to shareholders in reinvestment of distributions

Class A                    137,577     $1,511,329      148,053     $1,634,914      299,543    $3,427,995     317,868    $3,668,412
Class B                     20,316        223,644       29,129        321,863       48,765       557,986      58,752       677,734
- -----------------------------------------------------------------------------------------------------------------------------------
                           157,893     $1,734,973      177,182     $1,956,777      348,308    $3,985,981     376,620    $4,346,146

Shares reacquired

Class A                   (655,008)   $(7,177,983)    (597,886)   $(6,573,646)  (1,610,274)$(18,401,179) (1,856,776) $(21,368,626)
Class B                   (350,537)    (3,854,834)    (347,203)    (3,839,840)    (505,608)   (5,810,178)   (622,058)   (7,173,195)
- -----------------------------------------------------------------------------------------------------------------------------------
                        (1,005,545)  $(11,032,817)    (945,089)  $(10,413,486)  (2,115,882) $(24,211,357)  (2,478,834) $(28,541,821)

Net change

Class A                    (56,539)     $(600,297)    (120,803)   $(1,296,844)    (580,052)  $(6,579,177)   (958,150) $(10,992,544)
Class B                   (301,989)    (3,318,246)    (285,054)    (3,152,830)    (373,316)   (4,294,130)   (462,257)   (5,333,670)
- -----------------------------------------------------------------------------------------------------------------------------------
                          (358,528)   $(3,918,543)    (405,857)   $(4,449,674)    (953,368) $(10,873,307) (1,420,407) $(16,326,214)

                                          MASSACHUSETTS FUND
                        ------------------------------------------------------
                                YEAR ENDED                  YEAR ENDED
                              MARCH 31, 2006              MARCH 31, 2005

                        --------------------------  --------------------------
                          SHARES        AMOUNT        SHARES        AMOUNT
Shares sold
Class A                  1,762,892    $20,057,220    1,137,090    $12,908,079
Class B                    181,196      2,072,498      196,932      2,239,325
- --------------------------------------------------------------------------------
                         1,944,088    $22,129,718    1,334,022    $15,147,404

Shares issued to shareholders in reinvestment of distributions

Class A                    405,376     $4,607,951      426,503     $4,841,396
Class B                     81,697        930,076       95,377      1,084,111
- --------------------------------------------------------------------------------
                           487,073     $5,538,027      521,880     $5,925,507

Shares reacquired
Class A                 (3,187,918)  $(36,274,707)  (2,509,529)  $(28,364,705)
Class B                   (575,954)    (6,568,954)    (701,985)    (7,958,101)
- --------------------------------------------------------------------------------
                        (3,763,872)  $(42,843,661)  (3,211,514)  $(36,322,806)

Net change

Class A                 (1,019,650)  $(11,609,536)    (945,936)  $(10,615,230)
Class B                   (313,061)    (3,566,380)    (409,676)    (4,634,665)
- --------------------------------------------------------------------------------
                        (1,332,711)  $(15,175,916)  (1,355,612)  $(15,249,895)

(6) LINE OF CREDIT

Each fund and other affiliated funds participate in a $1 billion unsecured line of credit provided by a syndication of banks
under a credit agreement. Borrowings may be made for temporary financing needs. Interest is charged to each fund, based on its
borrowings, at a rate equal to the Federal Reserve funds rate plus 0.35%. In addition, a commitment fee, based on the average
daily, unused portion of the line of credit, is allocated among the participating funds at the end of each calendar quarter. The
commitment fee allocated to each fund for the year ended March 31, 2006 ranged from $461 to $2,521, and is included in
miscellaneous expense on the Statement of Operations. None of the funds had significant borrowings during the year ended March
31, 2006.

(7) CONCENTRATION OF CREDIT RISK

Since each fund invests a substantial portion of its assets in issuers located in one state, it will be more susceptible to
factors adversely affecting issuers of that state than would be a comparable tax-exempt mutual fund that invests nationally. The
risk associated with such factors is mitigated by the fact that a percentage of securities in a portfolio of investments are
backed by letters of credit or bond insurance of various financial institutions and financial guaranty assurance agencies. At
March 31, 2006, the percentage of holdings that carried such enhancements were as follows:


                                        ALABAMA      ARKANSAS    CALIFORNIA    FLORIDA       GEORGIA      MARYLAND   MASSACHUSETTS
                                           FUND          FUND          FUND       FUND          FUND          FUND            FUND

                                                                                                       
Total:                                   70.25%        70.91%        49.29%     61.49%        49.06%        43.76%          43.27%

For each fund, the greatest exposure to any one institution or agency did not exceed the following percentages of total
investments as of March 31, 2006:

                                         ALABAMA      ARKANSAS    CALIFORNIA   FLORIDA       GEORGIA      MARYLAND   MASSACHUSETTS
                                            FUND          FUND          FUND      FUND          FUND          FUND            FUND

Single Insurer:                           38.78%        20.76%        12.40%    24.46%        14.40%        10.49%          13.98%



REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Trustees and Shareholders of MFS Municipal Series Trust:

We have audited the accompanying statements of assets and liabilities,
including the portfolios of investments, of MFS Alabama Municipal Bond Fund,
MFS Arkansas Municipal Bond Fund, MFS California Municipal Bond Fund, MFS
Florida Municipal Bond Fund, MFS Georgia Municipal Bond Fund, MFS Maryland
Municipal Bond Fund and MFS Massachusetts Municipal Bond Fund, certain of the
portfolios of MFS Municipal Series Trust (the "Trust"), as of March 31, 2006,
and the related statements of operations for the year then ended, the
statements of changes in net assets for each of the two years in the period
then ended, and the financial highlights for each of the five years in the
period then ended. These financial statements and financial highlights are the
responsibility of the Trust's management. Our responsibility is to express an
opinion on these financial statements and financial highlights based on our
audits.

We conducted our audits in accordance with the standards of the Public Company
Accounting Oversight Board (United States). Those standards require that we
plan and perform the audit to obtain reasonable assurance about whether the
financial statements and financial highlights are free of material
misstatement. The Trust is not required to have, nor were we engaged to
perform, an audit of its internal control over financial reporting. Our audits
included consideration of internal control over financial reporting as a basis
for designing audit procedures that are appropriate in the circumstances, but
not for the purpose of expressing an opinion on the effectiveness of the
Trust's internal control over financial reporting. Accordingly, we express no
such opinion. An audit also includes examining, on a test basis, evidence
supporting the amounts and disclosures in the financial statements, assessing
the accounting principles used and significant estimates made by management,
as well as evaluating the overall financial statement presentation. Our
procedures included confirmation of securities owned as of March 31, 2006, by
correspondence with the custodian and brokers; where replies were not received
from brokers, we performed other auditing procedures. We believe that our
audits provide a reasonable basis for our opinion.

In our opinion, such financial statements and financial highlights present
fairly, in all material respects, the financial positions of MFS Alabama
Municipal Bond Fund, MFS Arkansas Municipal Bond Fund, MFS California
Municipal Bond Fund, MFS Florida Municipal Bond Fund, MFS Georgia Municipal
Bond Fund, MFS Maryland Municipal Bond Fund and MFS Massachusetts Municipal
Bond Fund as of March 31, 2006, the results of their operations for the year
then ended, the changes in their net assets for each of the two years in the
period then ended, and their financial highlights for each of the five years
in the period then ended, in conformity with accounting principles generally
accepted in the United States of America.

DELOITTE & TOUCHE LLP

Boston, Massachusetts
May 23, 2006


TRUSTEES AND OFFICERS -- IDENTIFICATION AND BACKGROUND

The Trustees and officers of the Trust, as of May 1, 2006, are listed below, together with their principal occupations during the
past five years. (Their titles may have varied during that period.) The address of each Trustee and officer is 500 Boylston
Street, Boston, Massachusetts 02116.


                                                  TRUSTEE/
                          POSITION(s) HELD        OFFICER                   PRINCIPAL OCCUPATIONS DURING THE PAST FIVE YEARS &
NAME, DATE OF BIRTH           WITH FUND           SINCE(H)                                OTHER DIRECTORSHIPS(J)
- -------------------           ---------           --------                  ----------------------------------------------------
                                                                    
INTERESTED TRUSTEES
Robert J. Manning(k)    Trustee                February 2004                 Massachusetts Financial Services Company,
(born 10/20/63)                                                              Chief Executive Officer, President, Chief
                                                                             Investment Officer and Director

Robert C. Pozen(k)      Trustee                February 2004                 Massachusetts Financial Services Company,
(born 08/08/46)                                                              Chairman (since February 2004); Secretary of
                                                                             Economic Affairs, The Commonwealth of
                                                                             Massachusetts (January 2002 to December
                                                                             2002); Fidelity Investments, Vice Chairman
                                                                             (June 2000 to December 2001); Fidelity
                                                                             Management & Research Company (investment
                                                                             adviser), President (March 1997 to July
                                                                             2001); Bell Canada Enterprises
                                                                             (telecommunications), Director; Medtronic,
                                                                             Inc. (medical technology), Director; Telesat
                                                                             (satellite communications), Director

INDEPENDENT TRUSTEES
J. Atwood Ives          Trustee and Chair of   February 1992                 Private investor; Eastern Enterprises
(born 05/01/36)         Trustees                                             (diversified services company), Chairman,
                                                                             Trustee and Chief Executive Officer (until
                                                                             November 2000)

Robert E. Butler(n)     Trustee                January 2006                  Consultant - regulatory and
(born 11/29/41)                                                              compliance matters (since July 2002);
                                                                             PricewaterhouseCoopers LLP (professional
                                                                             services firm), Partner (November 2000 until
                                                                             June 2002)

Lawrence H. Cohn, M.D.  Trustee                August 1993                   Brigham and Women's Hospital, Senior Cardiac
(born 03/11/37)                                                              Surgeon, Chief of Cardiac Surgery (until
                                                                             2005); Harvard Medical School, Professor of
                                                                             Surgery;Brigham and Women's Hospital
                                                                             Physicians' Organization, Chair (2000 to
                                                                             2004)

David H. Gunning        Trustee                January 2004                   Cleveland-Cliffs Inc. (mining products
(born 05/30/42)                                                               and service provider), Vice Chairman/
                                                                              Director (since April 2001); Encinitos
                                                                              Ventures (private investment company),
                                                                              Principal (1997 to April 2001); Lincoln
                                                                              Electric Holdings, Inc. (welding equipment
                                                                              manufacturer), Director

William R. Gutow        Trustee                December 1993                 Private investor and real estate consultant;
(born 09/27/41)                                                              Capitol Entertainment Management Company
                                                                             (video franchise), Vice Chairman

Michael Hegarty         Trustee                December 2004                 Retired; AXA Financial (financial services
(born 12/21/44)                                                              and insurance), Vice Chairman and Chief
                                                                             Operating Officer (until May 2001); The Equitable
                                                                             Life Assurance Society (insurance), President and
                                                                             Chief Operating Officer (until May 2001)

Lawrence T. Perera      Trustee                July 1981                     Hemenway & Barnes (attorneys), Partner
(born 06/23/35)

J. Dale Sherratt        Trustee                August 1993                   Insight Resources, Inc. (acquisition planning
(born 09/23/38)                                                              specialists), President; Wellfleet
                                                                             Investments (investor in health care
                                                                             companies), ManagingGeneral Partner (since
                                                                             1993); Cambridge Nutraceuticals (professional
                                                                             nutritional products), Chief Executive
                                                                             Officer (until May 2001)

Laurie J. Thomsen       Trustee                March 2005                    Private investor; Prism Venture Partners
(born 08/05/57)                                                              (venture capital), Co-founder and General
                                                                             Partner (until June 2004); St. Paul Travelers
                                                                             Companies (commercial property liability
                                                                             insurance), Director

Robert W. Uek           Trustee                January 2006                  Retired (since 1999); PricewaterhouseCoopers
(born 05/18/41)                                                              LLP (professional services firm), Partner
                                                                             (until 1999); Consultant to investment
                                                                             company industry (since 2000); TT
                                                                             International Funds (mutual fund complex),
                                                                             Trustee(2000 until 2005); Hillview Investment
                                                                             Trust II Funds (mutual fund complex), Trustee
                                                                             (2000 until 2005)

OFFICERS
Maria F. Dwyer(k)       President              November 2005                 Massachusetts Financial Services Company,
(born 12/01/58)                                                              Executive Vice President and Chief Regulatory
                                                                             Officer (since March 2004); Fidelity
                                                                             Management & Research Company, Vice President
                                                                             (prior to March 2004); Fidelity Group of
                                                                             Funds, President and Treasurer (prior to
                                                                             March 2004)

Tracy Atkinson(k)       Treasurer              September 2005                Massachusetts Financial Services Company,
(born 12/30/64)                                                              Senior Vice President (since September 2004);
                                                                             PricewaterhouseCoopers LLP, Partner (prior to
                                                                             September 2004)

Christopher R. Bohane   Assistant Secretary    July 2005                     Massachusetts Financial Services Company,
(k)                     and Assistant Clerk                                  Vice President and Senior Counsel (since April
(born 1/18/74)                                                               2003); Kirkpatrick & Lockhart LLP (law firm),
                                                                             Associate (prior to April 2003); Nvest
                                                                             Services Company, Assistant Vice President
                                                                             and Associate Counsel (prior to January 2001)

Ethan D. Corey(k)       Assistant Secretary    July 2005                     Massachusetts Financial Services Company,
(born 11/21/63)         and Assistant Clerk                                  Special Counsel (since December 2004);
                                                                             Dechert LLP (law firm), Counsel (prior to
                                                                             December 2004)

David L. DiLorenzo(k)   Assistant Treasurer    July 2005                     Massachusetts Financial Services Company,
(born 8/10/68)                                                               Vice President (since June 2005); JP Morgan
                                                                             Investor Services, Vice President (January
                                                                             2001 to June 2005); State Street Bank, Vice
                                                                             President and Corporate Audit Manager (prior
                                                                             to January 2001)

Timothy M. Fagan(k)     Assistant Secretary    September 2005                Massachusetts Financial Services Company,
(born 7/10/68)          and Assistant Clerk                                  Vice President and Senior Counsel (since
                                                                             September 2005); John Hancock Advisers, LLC,
                                                                             Vice President and Chief Compliance Officer
                                                                             (September 2004 to August 2005), Senior
                                                                             Attorney(prior to September 2004); John
                                                                             Hancock Group of Funds, Vice President
                                                                             and Chief Compliance Officer (September 2004
                                                                             to December 2004)

Mark D. Fischer(k)      Assistant Treasurer    July 2005                     Massachusetts Financial Services Company,
(born 10/27/70)                                                              Vice President (since May 2005); JP Morgan
                                                                             Investment Management Company, Vice President
                                                                             (prior to May 2005)

Ellen Moynihan(k)       Assistant Treasurer    April 1997                    Massachusetts Financial Services Company,
(born 11/13/57)                                                              Senior Vice President

Susan S. Newton(k)      Assistant Secretary    May 2005                      Massachusetts Financial Services Company,
(born 03/07/50)         and Assistant Clerk                                  Senior Vice President and Associate General
                                                                             Counsel (since April 2005); John Hancock
                                                                             Advisers, LLC, Senior Vice President,
                                                                             Secretary and Chief Legal Officer (prior to
                                                                             April 2005); John Hancock Group of Funds,
                                                                             Senior Vice President, Secretary and Chief
                                                                             Legal Officer (prior to April 2005)

Susan A. Pereira(k)     Assistant Secretary    July 2005                     Massachusetts Financial Services Company,
(born 11/05/70)         and Assistant Clerk                                  Vice President and Senior Counsel (since June
                                                                             2004); Bingham McCutchen LLP (law firm),
                                                                             Associate (January 2001 to June 2004); Preti,
                                                                             Flaherty, Beliveau, Pachios & Haley, LLC,
                                                                             Associate (prior to January 2001)

Mark N. Polebaum(k)     Secretary and Clerk    January 2006                  Massachusetts Financial Services Company,
(born 05/01/52)                                                              Executive Vice President, General Counsel and
                                                                             Secretary (since January 2006); Wilmer Cutler
                                                                             Pickering Hale and Dorr LLP (law firm),
                                                                             Partner (prior to January 2006)

Frank L. Tarantino      Independent Chief      June 2004                     Tarantino LLC (provider of compliance
(born 03/07/44)         Compliance Officer                                   services), Principal (since June 2004); CRA
                                                                             Business Strategies Group (consulting
                                                                             services), Executive Vice President (April
                                                                             2003 to June 2004); David L. Babson & Co.
                                                                             (investment adviser), Managing Director,
                                                                             Chief Administrative Officer and Director
                                                                             (February 1997 to March 2003)

James O. Yost(k)        Assistant Treasurer    September 1990                Massachusetts Financial Services Company,
(born 06/12/60)                                                              Senior Vice President

- --------------
(h) Date first appointed to serve as Trustee/officer of an MFS fund. Each Trustee has served continuously since appointment unless
    indicated otherwise.
(j) Directorships or trusteeships of companies required to report to the Securities and Exchange Commission (i.e., "public
    companies").
(k) "Interested person" of the Trust within the meaning of the Investment Company Act of 1940 (referred to as the 1940 Act), which
    is the principal federal law governing investment companies like the fund, as a result of position with MFS. The address of
    MFS is 500 Boylston Street, Boston, Massachusetts 02116.
(n) In 2004 and 2005, Mr. Butler provided consulting services to the independent compliance consultant retained by MFS pursuant to
    its settlement with the SEC concerning market timing and related matters. The terms of that settlement required that
    compensation and expenses related to the independent compliance consultant be borne exclusively by MFS and, therefore, MFS
    paid Mr. Butler for the services he rendered to the independent compliance consultant. In 2004 and 2005, MFS paid Mr. Butler a
    total of $351,119.29.

Each Trustee and officer holds office until his or her successor is chosen and qualified or until his or her earlier death,
resignation, retirement or removal. Messrs. Butler, Sherratt and Uek and Ms. Thomsen are members of the Trust's Audit Committee.

Each of the Trust's Trustees and officers holds comparable positions with certain other funds of which MFS or a subsidiary is the
investment adviser or distributor, and, in the case of the officers, with certain affiliates of MFS. As of December 31, 2005, each
Trustee served as a board member of 98 funds within the MFS Family of Funds.

The Trust held a shareholders' meeting in 2005, and will hold a shareholders' meeting at least once every five years thereafter,
to elect Trustees.

The Statement of Additional Information contains further information about the Trustees and is available without charge upon
request by calling 1-800-225-2606.
- --------------------------------------------------------------------------------------------

INVESTMENT ADVISER                                          CUSTODIAN
Massachusetts Financial Services Company                    State Street Bank and Trust Company
500 Boylston Street, Boston, MA 02116-3741                  225 Franklin Street, Boston, MA 02110

                                                            INDEPENDENT REGISTERED PUBLIC
DISTRIBUTOR                                                 ACCOUNTING FIRM
MFS Fund Distributors, Inc.                                 Deloitte & Touche LLP
500 Boylston Street, Boston, MA  02116-3741                 200 Berkeley Street, Boston, MA 02116

PORTFOLIO MANAGER
Michael L. Dawson


BOARD REVIEW OF INVESTMENT ADVISORY AGREEMENT

A discussion regarding the Board's most recent review and renewal of the
Fund's investment advisory agreement is available by clicking on the fund's
name under "Select a fund" on the MFS Web site (mfs.com).

PROXY VOTING POLICIES AND INFORMATION

A general description of the MFS funds' proxy voting policies and procedures
is available without charge, upon request, by calling 1-800-225-2606, by
visiting the Proxy Voting section of mfs.com or by visiting the SEC's Web site
at http://www.sec.gov.

Information regarding how the fund voted proxies relating to portfolio
securities during the most recent twelve-month period ended June 30 is
available without charge by visiting the Proxy Voting section of mfs.com or by
visiting the SEC's Web site at http://www.sec.gov.

QUARTERLY PORTFOLIO DISCLOSURE

The fund will file a complete schedule of portfolio holdings with the
Securities and Exchange Commission (the Commission) for the first and third
quarters of each fiscal year on Form N-Q. The fund's Form N-Q may be reviewed
and copied at the:
  Public Reference Room
  Securities and Exchange Commission
  100 F Street, NE
  Room 1580
  Washington, D.C. 20549

Information on the operation of the Public Reference Room may be obtained by
calling the Commission at 1-202-551-5850. The fund's Form N-Q is available on
the EDGAR database on the Commission's Internet Web site at http://
www.sec.gov, and copies of this information may be obtained, upon payment of a
duplicating fee, by electronic request at the following e-mail address:
publicinfo@sec.gov or by writing the Public Reference Section at the above
address.

A shareholder can also obtain the quarterly portfolio holdings report at
mfs.com.

FEDERAL TAX INFORMATION

The funds will notify shareholders of amounts for use in preparing 2006 income
tax forms in January 2007. The following information is provided pursuant to
provisions of the Internal Revenue Code.

The funds below designated the following amounts as capital gain dividends
paid during the fiscal year.

                                                     CAPITAL GAINS
                        ------------------------------------------
                        Alabama Fund                        33,574
                        California Fund                    658,156
                        Maryland Fund                      863,330
                        Massachusetts Fund               1,019,498

Of the dividends paid from net investment income during the fiscal year, the
following percentages were designated as
exempt interest dividends for federal income tax purposes. If each fund had
earned income on private activity bonds, a portion of the dividends paid may
be considered a tax preference item for purposes of computing a shareholder's
alternative minimum tax.

                                       EXEMPT INTEREST
                                             DIVIDENDS
                        ------------------------------
                        Alabama Fund           100.00%
                        Arkansas Fund          100.00%
                        California Fund        100.00%
                        Florida Fund            98.68%
                        Georgia Fund           100.00%
                        Maryland Fund          100.00%
                        Massachusetts Fund     100.00%


CONTACT INFORMATION

INVESTOR SERVICE

Write to us at: MFS Service Center, Inc.
                P.O. Box 55824
                Boston, MA 02205-5824


                                                                          
Type of Information                         Phone number                         Hours, Eastern Time
- -------------------------------------------------------------------------------------------------------------------
General information                         1-800-225-2606                       8 a.m. to 8 p.m., any business day
- -------------------------------------------------------------------------------------------------------------------
Speech- or hearing-impaired                 1-800-637-6576                       9 a.m. to 5 p.m., any business day
- -------------------------------------------------------------------------------------------------------------------
Share prices, account balances, exchanges   1-800-MFS-TALK (1-800-637-8255)
or stock and bond outlooks                  touch-tone required                  24 hours a day, 365 days a year
- -------------------------------------------------------------------------------------------------------------------


M F S(M)
INVESTMENT MANAGEMENT(R)

MFS Investment Management(R)
MFS(R) investment products are offered through MFS Fund Distributors, Inc.,
500 Boylston Street, Boston, MA 02116.
                                                            MST-A-ANN-5/06 22M



MFS(R) MUNICIPAL SERIES TRUST                                          3/31/06

FOR THE STATES OF: MISSISSIPPI,
NEW YORK, NORTH CAROLINA,
PENNSYLVANIA, SOUTH CAROLINA,
TENNESSEE, VIRGINIA, AND WEST VIRGINIA

ANNUAL REPORT

- ----------------------------------------------------

LETTER FROM THE CEO                                1
- ----------------------------------------------------
PORTFOLIO COMPOSITION                              2
- ----------------------------------------------------
MANAGEMENT REVIEW                                  5
- ----------------------------------------------------
PERFORMANCE SUMMARY                                6
- ----------------------------------------------------
FUND EXPENSE TABLES                               14
- ----------------------------------------------------
PORTFOLIO OF INVESTMENTS                          17
- ----------------------------------------------------
FINANCIAL STATEMENTS                              57
- ----------------------------------------------------
NOTES TO FINANCIAL STATEMENTS                     76
- ----------------------------------------------------
REPORT OF INDEPENDENT REGISTERED
PUBLIC ACCOUNTING FIRM                            84
- ----------------------------------------------------
TRUSTEES AND OFFICERS                             85
- ----------------------------------------------------
BOARD REVIEW OF INVESTMENT
ADVISORY AGREEMENT                                87
- ----------------------------------------------------
PROXY VOTING POLICIES AND
INFORMATION                                       87
- ----------------------------------------------------
QUARTERLY PORTFOLIO DISCLOSURE                    87
- ----------------------------------------------------
FEDERAL TAX INFORMATION                           87
- ----------------------------------------------------
CONTACT INFORMATION                       BACK COVER
- ----------------------------------------------------

THIS REPORT HAS BEEN PREPARED FOR THE GENERAL INFORMATION OF SHAREHOLDERS. IT
IS AUTHORIZED FOR DISTRIBUTION TO PROSPECTIVE INVESTORS ONLY WHEN PRECEDED OR
ACCOMPANIED BY A CURRENT PROSPECTUS.

M F S(SM)
INVESTMENT MANAGEMENT(R)

LETTER FROM THE CEO

[Photo of Robert J. Manning]

Dear Shareholders,
It has been said that change is the only constant in life. As investors have
seen, that theme is still accurate today as we recently have experienced
shifting economic cycles because of natural disasters and political instability
around the globe.

Markets worldwide have fluctuated in the past year as devastating hurricanes
had a dramatic effect on the international economy, particularly on oil prices.
We witnessed political unrest in the Middle East, highlighted by instability in
Iraq, and in Africa, the usually stable Nigeria also experienced violence. As a
result, energy prices have bounced up and down, with crude oil prices at one
point topping a record $70 per barrel.

Such cycles are not uncommon and in fact have almost become the norm in our
everyday lives. What does all of this mean to you as an investor? In times like
these, it helps to know that you're working with a seasoned investment
professional who has experience to guide you through difficult times. At
MFS(R), we believe our investment management team has the knowledge and
confidence to navigate through difficult cycles and at the same time see
through adversity to find investment opportunities for our clients and
shareholders.

Our investment management process, honed over 80 years, combines a unique
concept of teamwork with our unwavering focus on the long term. We firmly
believe that the best way to realize long-term financial goals - be it a
college education, a comfortable retirement, or a secure family legacy - is to
follow a three-pronged approach that focuses on longer time horizons. Allocate
holdings across the major asset classes - including stocks, bonds, and cash.
Diversify within each class to take advantage of different market segments and
investing styles. Rebalance assets regularly to maintain a desired asset
allocation. Of course, these strategies cannot guarantee a profit or protect
against a loss. This long-term approach requires diligence and patience, two
traits that in our experience are essential to capitalizing on the many
opportunities the financial markets can offer - through both up and down
economic cycles.

    Respectfully,

/s/ Robert J. Manning

    Robert J. Manning
    Chief Executive Officer and Chief Investment Officer
    MFS Investment Management(R)

    May 15, 2006

The opinions expressed in this letter are those of MFS, and no forecasts can be
guaranteed.

PORTFOLIO COMPOSITION

MFS(R) Mississippi Municipal Bond Fund

              PORTFOLIO STRUCTURE(i)

              Bonds                                      98.6%
              Cash & Other Net Assets                     1.4%

              TOP FIVE BOND INDUSTRIES (i)

              Health/Hospitals                           16.5%
              ------------------------------------------------
              State Agency                               13.5%
              ------------------------------------------------
              General Obligations/General Purpose        13.3%
              ------------------------------------------------
              Water/Sewer                                11.2%
              ------------------------------------------------
              Universities/Colleges                      11.1%
              ------------------------------------------------

              CREDIT QUALITY OF BONDS (r)

              AAA                                        80.6%
              ------------------------------------------------
              AA                                          2.5%
              ------------------------------------------------
              A                                           6.9%
              ------------------------------------------------
              BBB                                         8.5%
              ------------------------------------------------
              Not Rated                                   1.5%
              ------------------------------------------------

              PORTFOLIO FACTS

              Average Duration (d)                         6.5
              ------------------------------------------------
              Average Life (m)                       14.8 yrs.
              ------------------------------------------------
              Average Maturity (m)                   16.1 yrs.
              ------------------------------------------------
              Average Credit Quality of Rated
              Securities (a)                               AA+
              ------------------------------------------------
              Average Short Term Credit Quality            A-1
              ------------------------------------------------

MFS(R) New York Municipal Bond Fund

              PORTFOLIO STRUCTURE(i)

              Bonds                                      98.7%
              Cash & Other Net Assets                     1.3%

              TOP FIVE BOND INDUSTRIES (i)

              Water/Sewer                                13.2%
              ------------------------------------------------
              State Agency                               12.1%
              ------------------------------------------------
              Toll Roads                                  8.6%
              ------------------------------------------------
              Transportation/Special Tax                  7.7%
              ------------------------------------------------
              General Obligations/General Purpos          7.6%
              ------------------------------------------------

              CREDIT QUALITY OF BONDS (r)

              AAA                                        43.8%
              ------------------------------------------------
              AA                                         20.3%
              ------------------------------------------------
              A                                          19.0%
              ------------------------------------------------
              BBB                                         9.8%
              ------------------------------------------------
              BB                                          2.2%
              ------------------------------------------------
              B                                           0.6%
              ------------------------------------------------
              Not Rated                                   4.3%
              ------------------------------------------------

              PORTFOLIO FACTS

              Average Duration (d)                         6.6
              ------------------------------------------------
              Average Life (m)                       15.6 yrs.
              ------------------------------------------------
              Average Maturity (m)                   17.2 yrs.
              ------------------------------------------------
              Average Credit Quality of Rated
              Securities (a)                                AA
              ------------------------------------------------
              Average Short Term Credit Quality            A-1
              ------------------------------------------------

MFS(R) North Carolina Municipal Bond Fund

              PORTFOLIO STRUCTURE (i)

              Bonds                                      93.3%
              Cash & Other Net Assets                     0.7%

              TOP FIVE BOND INDUSTRIES (i)

              Health/Hospitals                           23.0%
              ------------------------------------------------
              Municipal-owned utilities                  13.8%
              ------------------------------------------------
              Universities/Colleges                      10.1%
              ------------------------------------------------
              Water/Sewer                                 9.3%
              ------------------------------------------------
              State & Local Appropriation Other           8.2%
              ------------------------------------------------

              CREDIT QUALITY OF BONDS (r)

              AAA                                        40.3%
              ------------------------------------------------
              AA                                         33.8%
              ------------------------------------------------
              A                                           8.6%
              ------------------------------------------------
              BBB                                        16.4%
              ------------------------------------------------
              Not Rated                                   0.9%
              ------------------------------------------------

              PORTFOLIO FACTS

              Average Duration (d)                         6.1
              ------------------------------------------------
              Average Life (m)                       14.2 yrs.
              ------------------------------------------------
              Average Maturity (m)                   15.5 yrs.
              ------------------------------------------------
              Average Credit Quality of Rated
              Securities (a)                                AA
              ------------------------------------------------
              Average Short Term Credit Quality            A-1
              ------------------------------------------------

MFS(R) Pennsylvania Municipal Bond Fund

              PORTFOLIO STRUCTURE (i)

              Bonds                                      98.6%
              Cash & Other Net Assets                     1.4%

              TOP FIVE BOND INDUSTRIES (i)

              General Obligations/Schools                21.8%
              ------------------------------------------------
              Universities/Colleges                      13.9%
              ------------------------------------------------
              Health/Hospitals                           11.7%
              ------------------------------------------------
              Water/Sewer                                 9.4%
              ------------------------------------------------
              General Obligations/General Purpose         7.7%
              ------------------------------------------------

              CREDIT QUALITY OF BONDS (r)

              AAA                                        68.1%
              ------------------------------------------------
              AA                                         14.0%
              ------------------------------------------------
              A                                           5.9%
              ------------------------------------------------
              BBB                                         9.0%
              ------------------------------------------------
              BB                                          0.6%
              ------------------------------------------------
              B                                           0.2%
              ------------------------------------------------
              CCC                                         0.5%
              ------------------------------------------------
              Not Rated                                   1.7%
              ------------------------------------------------

              PORTFOLIO FACTS

              Average Duration (d)                         7.0
              ------------------------------------------------
              Average Life (m)                       16.9 yrs.
              ------------------------------------------------
              Average Maturity (m)                   18.0 yrs.
              ------------------------------------------------
              Average Credit Quality of Rated
              Securities (a)                                AA
              ------------------------------------------------
              Average Short Term Credit Quality            A-1
              ------------------------------------------------

MFS(R) South Carolina Municipal Bond Fund

              PORTFOLIO STRUCTURE(i)

              Bonds                                      98.8%
              Cash & Other Net Assets                     1.2%

              TOP FIVE BOND INDUSTRIES (i)

              Health/Hospitals                           20.9%
              ------------------------------------------------
              Water/Sewer                                14.6%
              ------------------------------------------------
              Universities/Colleges                      11.7%
              ------------------------------------------------
              Municipal-owned Utilities                  11.3%
              ------------------------------------------------
              General Obligations/Schools                10.2%
              ------------------------------------------------

              CREDIT QUALITY OF BONDS (r)

              AAA                                        76.1%
              ------------------------------------------------
              AA                                         11.8%
              ------------------------------------------------
              A                                           6.2%
              ------------------------------------------------
              BBB                                         2.8%
              ------------------------------------------------
              B                                           0.6%
              ------------------------------------------------
              Not Rated                                   2.5%
              ------------------------------------------------

              PORTFOLIO FACTS

              Average Duration (d)                         6.8
              ------------------------------------------------
              Average Life (m)                       18.1 yrs.
              ------------------------------------------------
              Average Maturity (m)                   19.3 yrs.
              ------------------------------------------------
              Average Credit Quality of Rated
              Securities (a)                               AA+
              ------------------------------------------------
              Average Short Term Credit Quality            A-1
              ------------------------------------------------

MFS(R) Tennessee Municipal Bond Fund

              PORTFOLIO STRUCTURE(i)

              Bonds                                      99.1%
              Cash & Other Net Assets                     0.9%

              TOP FIVE BOND INDUSTRIES (i)

              Water/Sewer                                19.3%
              ------------------------------------------------
              Health/Hospitals                           14.0%
              ------------------------------------------------
              General Obligations/Schools                12.9%
              ------------------------------------------------
              Single Family Housing/State                12.7%
              ------------------------------------------------
              General Obligations/General Purpose         8.4%
              ------------------------------------------------

              CREDIT QUALITY OF BONDS (r)

              AAA                                        56.8%
              ------------------------------------------------
              AA                                         28.9%
              ------------------------------------------------
              A                                           4.3%
              ------------------------------------------------
              BBB                                         7.1%
              ------------------------------------------------
              B                                           0.9%
              ------------------------------------------------
              Not Rated                                   2.0%
              ------------------------------------------------

              PORTFOLIO FACTS

              Average Duration (d)                         5.9
              ------------------------------------------------
              Average Life (m)                       12.8 yrs.
              ------------------------------------------------
              Average Maturity (m)                   15.9 yrs.
              ------------------------------------------------
              Average Credit Quality of Rated
              Securities (a)                                AA
              ------------------------------------------------
              Average Short Term Credit Quality            A-1
              ------------------------------------------------

MFS(R) Virginia Municipal Bond Fund

              PORTFOLIO STRUCTURE(i)

              Bonds                                      98.4%
              Cash & Other Net Assets                     1.6%

              TOP FIVE BOND INDUSTRIES (i)

              State Agency                               22.0%
              ------------------------------------------------
              General Obligations/Improvement            12.9%
              ------------------------------------------------
              Health/Hospitals                           12.4%
              ------------------------------------------------
              Water/Sewer                                10.2%
              ------------------------------------------------
              Airport                                     8.5%
              ------------------------------------------------

              CREDIT QUALITY OF BONDS (r)

              AAA                                        48.3%
              ------------------------------------------------
              AA                                         27.1%
              ------------------------------------------------
              A                                          12.0%
              ------------------------------------------------
              BBB                                         5.0%
              ------------------------------------------------
              BB                                          1.1%
              ------------------------------------------------
              B                                           1.0%
              ------------------------------------------------
              CCC                                         0.6%
              ------------------------------------------------
              Not Rated                                   4.9%
              ------------------------------------------------

              PORTFOLIO FACTS

              Average Duration (d)                         6.2
              ------------------------------------------------
              Average Life (m)                       14.5 yrs.
              ------------------------------------------------
              Average Maturity (m)                   16.5 yrs.
              ------------------------------------------------
              Average Credit Quality of Rated
              Securities (a)                                AA
              ------------------------------------------------
              Average Short Term Credit Quality            A-1
              ------------------------------------------------

MFS(R) West Virginia Municipal Bond Fund

              PORTFOLIO STRUCTURE(i)

              Bonds                                      99.0%
              Cash & Other Net Assets                     1.0%

              TOP FIVE BOND INDUSTRIES (i)

              Universities/Colleges                      23.4%
              ------------------------------------------------
              General Obligations/General Purpose        22.2%
              ------------------------------------------------
              State Agency                               20.5%
              ------------------------------------------------
              Water/Sewer                                 8.2%
              ------------------------------------------------
              Health/Hospitals                            5.4%
              ------------------------------------------------

              CREDIT QUALITY OF BONDS (r)

              AAA                                        79.0%
              ------------------------------------------------
              AA                                          6.4%
              ------------------------------------------------
              A                                           9.2%
              ------------------------------------------------
              BBB                                         3.8%
              ------------------------------------------------
              BB                                          0.2%
              ------------------------------------------------
              B                                           0.6%
              ------------------------------------------------
              Not Rated                                   0.8%
              ------------------------------------------------

              PORTFOLIO FACTS

              Average Duration (d)                         6.2
              ------------------------------------------------
              Average Life (m)                       15.8 yrs.
              ------------------------------------------------
              Average Maturity (m)                   16.8 yrs.
              ------------------------------------------------
              Average Credit Quality of Rated
              Securities (a)                               AA+
              ------------------------------------------------
              Average Short Term Credit Quality            A-1
              ------------------------------------------------

(a) The average credit quality of rated securities is based upon a market
    weighted average of portfolio holdings that are rated by public rating
    agencies.

(d) Duration is a measure of how much a bond's price is likely to fluctuate
    with general changes in interest rates, e.g., if rates rise 1.00%, a bond
    with a 5-year duration is likely to lose about 5.00% of its value.

(i) For purposes of this graphical presentation, the bond component includes
    both accrued interest amounts and the equivalent expo sure from any
    derivative holdings, if applicable.

(m) The average maturity shown is calculated using the final stated maturity on
    the portfolio's holdings without taking into account any holdings which
    have been pre-refunded to an earlier date or which have a mandatory put
    date prior to the stated maturity. The average life shown takes into
    account these earlier dates.

(r) Each security is assigned a rating from Moody's Investors Service. If not
    rated by Moody's, the rating will be that assigned by Standard & Poor's.
    Likewise, if not assigned a rating by Standard & Poor's, it will be based
    on the rating assigned by Fitch, Inc. For those portfolios that hold a
    security which is not rated by any of the three agencies, the security is
    considered Not Rated. Holdings in U.S. Treasuries and government agency
    mortgage-backed securities, if any, are included in the "AAA"-rating
    category. Percentages are based on the total market value of investments as
    of 3/31/06.

Percentages are based on net assets as of 3/31/06, unless otherwise noted.
The portfolios are actively managed, and current holdings may be different.

MANAGEMENT REVIEW

FACTORS THAT AFFECTED PERFORMANCE

During the period, our duration(d) positioning relative to our benchmark, the
Lehman Brothers Municipal Bond Index (Lehman Index), had a positive effect on
relative performance for the North Carolina and Tennessee funds, and a negative
effect on results for the Pennsylvania fund. For all other funds, duration
positioning had a neutral effect on performance.

Yield-curve(y) positioning was a strong contributor to relative results in all
funds, with the exception of the Virginia and Tennessee funds, in which the
positioning had a neutral and negative effect, respectively. Compared to the
benchmark, all of the funds, excluding the South Carolina, Tennessee, and
Virginia funds, were underweighted in bonds on the short end of the yield-
curve (represented by bonds with durations of 0- to 4- years). This positioning
helped relative returns as bonds on the short-end of the curve suffered price
declines as their yields increased. The South Carolina fund was overweighted in
bonds on the long end of the curve (represented by bonds with durations of 11-
to 25-years). This helped relative results during the period because long-term
municipal bonds increased in price as their yields flattened.

The average credit quality of most of the funds was similar to that of the
Lehman Index over the period. The effect of credit quality on relative
performance was therefore neutral for all funds with the exception of the South
Carolina and Virginia funds, where credit quality hurt results.

Sector allocation benefited the Mississippi and New York funds, where our
underweighted positions in the general obligation sector aided results. The
Virginia fund benefited from an overweighting in the utilities sector. On the
negative side, security selection in the credit enhanced sector was an area of
weakness for many of the funds. Underweighting the strong-performing tobacco
sector hurt results for all funds, except the New York and Tennessee funds,
where the sector had a neutral impact on performance. Security selection in the
pre-refunded bonds sector also negatively impacted relative returns for the New
York, South Carolina, and West Virginia funds. Overweighting this sector in the
Tennessee fund also dampened results.

Respectfully,

Michael Dawson
Portfolio Manager

(d) Duration is a measure of how much a bond's price is likely to fluctuate
    with general changes in interest rates, e.g., if rates rise 1.00%, a bond
    with a 5-year duration is likely to lose about 5.00% of its value.
(y) A yield curve graphically depicts the yields of different maturity bonds of
    the same credit quality and type. A normal yield curve is upward sloping,
    with short-term rates lower than long-term rates.

The views expressed in this report are those of the portfolio manager only
through the end of the period of the report as stated on the cover and do not
necessarily reflect the views of MFS or any other person in the MFS
organization. These views are subject to change at any time based on market and
other conditions, and MFS disclaims any responsibility to update such views.
These views may not be relied upon as investment advice or an indication of
trading intent on behalf of any MFS portfolio. References to specific
securities are not recommendations of such securities, and may not be
representative of any MFS portfolio's current or future investments.

PERFORMANCE SUMMARY THROUGH 3/31/06

The following information illustrates the historical performance of each fund's
original share class in comparison to various market indicators. Performance
results include the deduction of the maximum applicable sales charge and
reflect the percentage change in net asset value, including reinvestment of
dividends and capital gains distributions. Each fund's results have been
compared to the average relevant state municipal debt fund tracked by Lipper
Inc., an independent firm that reports mutual fund performance. For those
states where Lipper does not track state specific fund performance, we have
provided the average "other state" municipal debt fund returns. Each fund's
results have also been compared to the Lehman Brothers Municipal Bond Index, a
market-value-weighted index representative of the tax-exempt bond market.
However, while this index is considered the benchmark for the performance of
municipal bond funds, it is comprised of municipal bonds issued nationwide,
while each of the funds is limited to investing in the bonds of a particular
state. The performance of other share classes will be greater than or less than
that of the class depicted below. Benchmark comparisons are unmanaged; do not
reflect sales charges, commissions or expenses; and cannot be invested in
directly. (See Notes to Performance Summary.) It is not possible to invest
directly in an index.

PERFORMANCE DATA SHOWN REPRESENTS PAST PERFORMANCE AND IS NO GUARANTEE OF
FUTURE RESULTS. INVESTMENT RETURN AND PRINCIPAL VALUE FLUCTUATE SO YOUR SHARES,
WHEN SOLD, MAY BE WORTH MORE OR LESS THAN THE ORIGINAL COST; CURRENT
PERFORMANCE MAY BE LOWER OR HIGHER THAN QUOTED. FOR MOST RECENT MONTH-END
PERFORMANCE, PLEASE VISIT MFS.COM. THE PERFORMANCE SHOWN DOES NOT REFLECT THE
DEDUCTION OF TAXES, IF ANY, THAT A SHAREHOLDER WOULD PAY ON FUND DISTRIBUTIONS
OR THE REDEMPTION OF FUND SHARES.

GROWTH OF A HYPOTHETICAL $10,000 INVESTMENT
(FOR THE 10-YEAR PERIOD ENDED 3/31/06)

                         MFS Mississippi    Lehman Brothers
                         Municipal Bond       Municipal
                     Bond Fund - Class A      Bond Index

              3/96         $ 9,525             $10,000
              3/97          10,022              10,547
              3/98          11,126              11,677
              3/99          11,751              12,400
              3/00          11,683              12,39
              3/01          12,854              13,744
              3/02          13,298              14,261
              3/03          14,558              15,671
              3/04          15,252              16,590
              3/05          15,674              17,032
              3/06          16,237              17,682


MFS(R) MISSISSIPPI BOND FUND
TOTAL RETURNS THROUGH 3/31/06

AVERAGE ANNUAL WITHOUT SALES CHARGE

                 Class inception
  Share class           date                       1-yr       5-yr     10-yr

       A               8/06/92                       3.59%     4.78%     5.48%
- ------------------------------------------------------------------------------
       B               9/07/93                       2.71%     3.95%     4.64%

AVERAGE ANNUAL

Comparative Benchmarks

Average "other state" municipal debt
fund (l)                                             3.82%     4.88%     5.40%
- ------------------------------------------------------------------------------
Lehman Brothers Municipal Bond Index
(f)                                                  3.81%     5.17%     5.86%

AVERAGE ANNUAL WITH SALES CHARGE

  Share class

       A                                            -1.33%     3.77%     4.97%
With Initial Sales Charge (4.75%)
- ------------------------------------------------------------------------------
       B                                            -1.25%     3.61%     4.64%
With CDSC (Declining over six years
from 4% to 0%)

CDSC - Contingent Deferred Sales Charge.
(f) Source: FactSet Research Systems, Inc.
(l) Source: Lipper Inc., an independent firm that reports mutual fund
    performance.


GROWTH OF A HYPOTHETICAL $10,000 INVESTMENT
(FOR THE 10-YEAR PERIOD ENDED 3/31/06)

                          MFS New York     Lehman Brothers
                         Municipal Bond       Municipal
                         Fund - Class A      Bond Index

              3/96         $ 9,525             $10,000
              3/97           9,971              10,547
              3/98          11,126              11,677
              3/99          11,698              12,400
              3/00          11,574              12,390
              3/01          12,819              13,744
              3/02          13,224              14,261
              3/03          14,553              15,671
              3/04          15,267              16,590
              3/05          15,641              17,032
              3/06          16,157              17,682

MFS(R) NEW YORK MUNICIPAL BOND FUND
TOTAL RETURNS THROUGH 3/31/06

AVERAGE ANNUAL WITHOUT SALES CHARGE

                 Class inception
  Share class           date                       1-yr       5-yr     10-yr

       A               6/06/88                       3.30%     4.74%     5.43%
- ------------------------------------------------------------------------------
       B               9/07/93                       2.43%     3.90%     4.60%
- ------------------------------------------------------------------------------
       C              12/11/00                       2.43%     3.94%     4.61%

AVERAGE ANNUAL

Comparative Benchmarks

Average New York municipal debt
fund (l)                                             3.89%     4.64%     5.20%
- ------------------------------------------------------------------------------
Lehman Brothers Municipal Bond
Index (f)                                            3.81%     5.17%     5.86%

AVERAGE ANNUAL WITH SALES CHARGE

  Share class

       A                                            -1.61%     3.72%     4.91%
With Initial Sales Charge (4.75%)
- ------------------------------------------------------------------------------
       B                                            -1.51%     3.56%     4.60%
With CDSC (Declining over six years
from 4% to 0%)
- ------------------------------------------------------------------------------
       C                                             1.45%     3.94%     4.61%
With CDSC (1% for 12 months) (x)

CDSC - Contingent Deferred Sales Charge.
(f) Source: FactSet Research Systems, Inc.
(l) Source: Lipper Inc., an independent firm that reports mutual fund
    performance.
(x) Assuming redemption within one year from the end of the prior month of
    purchase.


GROWTH OF A HYPOTHETICAL $10,000 INVESTMENT
(FOR THE 10-YEAR PERIOD ENDED 3/31/06)

                      MFS North Carolina    Lehman Brothers
                         Municipal Bond       Municipal
                         Fund - Class A      Bond Index

              3/96         $ 9,525             $10,000
              3/97          10,010              10,547
              3/98          11,047              11,677
              3/99          11,572              12,400
              3/00          11,379              12,390
              3/01          12,539              13,744
              3/02          12,926              14,261
              3/03          14,181              15,671
              3/04          14,891              16,590
              3/05          15,211              17,032
              3/06          15,742              17,682

MFS(R) NORTH CAROLINA MUNICIPAL BOND FUND
TOTAL RETURNS THROUGH 3/31/06

AVERAGE ANNUAL WITHOUT SALES CHARGE

                 Class inception
  Share class           date                       1-yr       5-yr     10-yr

       A              10/31/84                       3.49%     4.65%     5.15%
- ------------------------------------------------------------------------------
       B               9/07/93                       2.73%     3.94%     4.46%
- ------------------------------------------------------------------------------
       C               1/03/94                       2.82%     3.96%     4.48%

AVERAGE ANNUAL

Comparative Benchmarks

Average North Carolina municipal
debt fund (l)                                        3.14%     4.23%     4.89%
- ------------------------------------------------------------------------------
Lehman Brothers Municipal Bond
Index (f)                                            3.81%     5.17%     5.86%

AVERAGE ANNUAL WITH SALES CHARGE

  Share class

       A                                            -1.43%     3.64%     4.64%
With Initial Sales Charge (4.75%)
- ------------------------------------------------------------------------------
       B                                            -1.22%     3.60%     4.46%
With CDSC (Declining over six years
from 4% to 0%)
- ------------------------------------------------------------------------------
       C                                             1.83%     3.96%     4.48%
With CDSC (1% for 12 months) (x)

CDSC - Contingent Deferred Sales Charge.
(f) Source: FactSet Research Systems, Inc.
(l) Source: Lipper Inc., an independent firm that reports mutual fund
    performance.
(x) Assuming redemption within one year from the end of the prior month of
    purchase.


GROWTH OF A HYPOTHETICAL $10,000 INVESTMENT
(FOR THE 10-YEAR PERIOD ENDED 3/31/06)

                        MFS Pennsylvania    Lehman Brothers
                         Municipal Bond       Municipal
                         Fund - Class A      Bond Index

              3/96         $ 9,525             $10,000
              3/97           9,970              10,547
              3/98          11,131              11,677
              3/99          11,782              12,400
              3/00          11,730              12,390
              3/01          13,002              13,744
              3/02          13,502              14,261
              3/03          14,868              15,671
              3/04          15,629              16,590
              3/05          16,093              17,032
              3/06          16,750              17,682

MFS(R) PENNSYLVANIA MUNICIPAL BOND FUND
TOTAL RETURNS THROUGH 3/31/06

AVERAGE ANNUAL WITHOUT SALES CHARGE

                 Class inception
  Share class           date                       1-yr       5-yr     10-yr

       A               2/01/93                       4.08%     5.20%     5.81%
- ------------------------------------------------------------------------------
       B               9/07/93                       3.30%     4.36%     4.97%

AVERAGE ANNUAL

Comparative Benchmarks

Average Pennsylvania municipal debt
fund (l)                                             3.66%     4.79%     5.03%
- ------------------------------------------------------------------------------
Lehman Brothers Municipal Bond
Index (f)                                            3.81%     5.17%     5.86%

AVERAGE ANNUAL WITH SALES CHARGE

  Share class

       A                                            -0.86%     4.18%     5.29%
With Initial Sales Charge (4.75%)
- ------------------------------------------------------------------------------
       B                                            -0.69%     4.02%     4.97%
With CDSC (Declining over six years
from 4% to 0%)

CDSC - Contingent Deferred Sales Charge.
(f) Source: FactSet Research Systems, Inc.
(l) Source: Lipper Inc., an independent firm that reports mutual fund
    performance.


GROWTH OF A HYPOTHETICAL $10,000 INVESTMENT
(FOR THE 10-YEAR PERIOD ENDED 3/31/06)

                      MFS South Carolina    Lehman Brothers
                         Municipal Bond       Municipal
                         Fund - Class A      Bond Index

              3/96         $ 9,525             $10,000
              3/97           9,949              10,547
              3/98          11,006              11,677
              3/99          11,482              12,400
              3/00          11,222              12,390
              3/01          12,373              13,744
              3/02          12,828              14,261
              3/03          14,048              15,671
              3/04          14,793              16,590
              3/05          15,166              17,032
              3/06          15,694              17,682

MFS(R) SOUTH CAROLINA MUNICIPAL BOND FUND
TOTAL RETURNS THROUGH 3/31/06

AVERAGE ANNUAL WITHOUT SALES CHARGE

                 Class inception
  Share class           date                       1-yr       5-yr     10-yr

       A              10/31/84                       3.48%     4.87%     5.12%
- ------------------------------------------------------------------------------
       B               9/07/93                       2.73%     4.19%     4.43%

AVERAGE ANNUAL

Comparative Benchmarks

Average South Carolina municipal
debt fund (l)                                        3.16%     4.47%     4.97%
- ------------------------------------------------------------------------------
Lehman Brothers Municipal Bond
Index (f)                                            3.81%     5.17%     5.86%

AVERAGE ANNUAL WITH SALES CHARGE

  Share class

       A                                            -1.44%     3.85%     4.61%
With Initial Sales Charge (4.75%)
- ------------------------------------------------------------------------------
       B                                            -1.23%     3.85%     4.43%
With CDSC (Declining over six years
from 4% to 0%)

CDSC - Contingent Deferred Sales Charge.
(f) Source: FactSet Research Systems, Inc.
(l) Source: Lipper Inc., an independent firm that reports mutual fund
    performance.


GROWTH OF A HYPOTHETICAL $10,000 INVESTMENT
(FOR THE 10-YEAR PERIOD ENDED 3/31/06)

                          MFS Tennessee    Lehman Brothers
                         Municipal Bond       Municipal
                         Fund - Class A      Bond Index

              3/96         $ 9,525             $10,000
              3/97           9,952              10,547
              3/98          11,058              11,677
              3/99          11,589              12,400
              3/00          11,386              12,390
              3/01          12,510              13,744
              3/02          12,930              14,261
              3/03          14,138              15,671
              3/04          14,816              16,590
              3/05          15,191              17,032
              3/06          15,666              17,682

MFS(R) TENNESSEE MUNICIPAL BOND FUND
TOTAL RETURNS THROUGH 3/31/06

AVERAGE ANNUAL WITHOUT SALES CHARGE

                 Class inception
  Share class           date                       1-yr       5-yr     10-yr

       A               8/12/88                       3.13%     4.60%     5.10%
- ------------------------------------------------------------------------------
       B               9/07/93                       2.56%     3.95%     4.43%

AVERAGE ANNUAL

Comparative Benchmarks

Average Tennessee municipal debt
fund (l)                                             2.89%     4.27%     4.94%
- ------------------------------------------------------------------------------
Lehman Brothers Municipal Bond Index
(f)                                                  3.81%     5.17%     5.86%

AVERAGE ANNUAL WITH SALES CHARGE

  Share class

       A                                            -1.77%     3.59%     4.59%
With Initial Sales Charge (4.75%)
- ------------------------------------------------------------------------------
       B                                            -1.39%     3.60%     4.43%
With CDSC (Declining over six years
from 4% to 0%)

CDSC - Contingent Deferred Sales Charge.
(f) Source: FactSet Research Systems, Inc.
(l) Source: Lipper Inc., an independent firm that reports mutual fund
    performance.


GROWTH OF A HYPOTHETICAL $10,000 INVESTMENT
(FOR THE 10-YEAR PERIOD ENDED 3/31/06)

                          MFS Virginia     Lehman Brothers
                         Municipal Bond       Municipal
                         Fund - Class A      Bond Index

              3/96         $ 9,525             $10,000
              3/97           9,903              10,547
              3/98          10,925              11,677
              3/99          11,440              12,400
              3/00          11,315              12,390
              3/01          12,510              13,744
              3/02          12,751              14,261
              3/03          13,412              15,671
              3/04          14,705              16,590
              3/05          15,120              17,032
              3/06          15,641              17,682

MFS(R) VIRGINIA MUNICIPAL BOND FUND
TOTAL RETURNS THROUGH 3/31/06

AVERAGE ANNUAL WITHOUT SALES CHARGE

                 Class inception
  Share class           date                       1-yr       5-yr     10-yr

       A              10/31/84                       3.45%     4.76%     5.09%
- ------------------------------------------------------------------------------
       B               9/07/93                       2.78%     4.08%     4.39%
- ------------------------------------------------------------------------------
       C               1/03/94                       2.78%     4.08%     4.41%

AVERAGE ANNUAL

Comparative Benchmarks

Average Virginia municipal debt
fund (l)                                             3.16%     4.27%     4.93%
- ------------------------------------------------------------------------------
Lehman Brothers Municipal Bond
Index (f)                                            3.81%     5.17%     5.86%

AVERAGE ANNUAL WITH SALES CHARGE

  Share class

       A                                            -1.47%     3.75%     4.57%
With Initial Sales Charge (4.75%)
- ------------------------------------------------------------------------------
       B                                            -1.19%     3.74%     4.39%
With CDSC (Declining over six years
from 4% to 0%)
- ------------------------------------------------------------------------------
       C                                             1.79%     4.08%     4.41%
With CDSC (1% for 12 months) (x)

CDSC - Contingent Deferred Sales Charge.
(f) Source: FactSet Research Systems, Inc.
(l) Source: Lipper Inc., an independent firm that reports mutual fund
    performance.
(x) Assuming redemption within one year from the end of the prior month of
    purchase.


GROWTH OF A HYPOTHETICAL $10,000 INVESTMENT
(FOR THE 10-YEAR PERIOD ENDED 3/31/06)

                        MFS West Virginia  Lehman Brothers
                         Municipal Bond       Municipal
                         Fund - Class A      Bond Index

              3/96         $ 9,525             $10,000
              3/97          10,021              10,547
              3/98          10,965              11,677
              3/99          11,483              12,400
              3/00          11,266              12,390
              3/01          12,398              13,744
              3/02          12,868              14,261
              3/03          14,031              15,671
              3/04          14,710              16,590
              3/05          15,046              17,032
              3/06          15,528              17,682

MFS(R) WEST VIRGINIA MUNICIPAL BOND FUND
TOTAL RETURNS THROUGH 3/31/06

AVERAGE ANNUAL WITHOUT SALES CHARGE

                 Class inception
  Share class           date                       1-yr       5-yr     10-yr

       A              10/31/84                       3.21%     4.61%     5.01%
- ------------------------------------------------------------------------------
       B               9/07/93                       2.45%     3.93%     4.32%

AVERAGE ANNUAL

Comparative Benchmarks

Average "other state" municipal debt
fund (l)                                             3.82%     4.88%     5.40%
- ------------------------------------------------------------------------------
Lehman Brothers Municipal Bond
Index (f)                                            3.81%     5.17%     5.86%

AVERAGE ANNUAL WITH SALES CHARGE

  Share class

       A                                            -1.69%     3.59%     4.50%
With Initial Sales Charge (4.75%)
- ------------------------------------------------------------------------------
       B                                            -1.50%     3.58%     4.32%
With CDSC (Declining over six years
from 4% to 0%)

CDSC - Contingent Deferred Sales Charge.
(f)  Source: FactSet Research Systems, Inc.
(l)  Source: Lipper Inc., an independent firm that reports mutual fund
     performance.

NOTES TO PERFORMANCE SUMMARY

Performance results reflect any applicable expense subsidies and waivers in
effect during the periods shown. Without such subsidies and waivers the funds'
performance results would be less favorable. Please see the prospectus and
financial statements for complete details.

A portion of income may be subject to state, federal, and/or alternative
minimum tax. Capital gains, if any, are subject to a capital gains tax.

From time to time the funds may receive proceeds from litigation settlements,
without which performance would be lower.

For the MFS New York Municipal Bond Fund only:

Performance for Class C shares includes the performance of the fund's Class B
shares prior to their offering. This blended class performance has been
adjusted to take into account differences in sales loads, if any, applicable to
these share classes, but has not been adjusted to take into account differences
in class specific operating expenses (such as Rule 12b-1 fees). Compared to
performance these share classes would have experienced had they been offered
for the entire period, the use of blended performance generally results in
higher performance for share classes with higher operating expenses than the
share class to which it is blended, and lower performance for share classes
with lower operating expenses than the share class to which it is blended.

FUND EXPENSE TABLES

FUND EXPENSES BORNE BY THE SHAREHOLDERS DURING THE PERIOD, OCTOBER 1, 2005,
THROUGH MARCH 31, 2006.

As a shareholder of the funds, you incur two types of costs: (1) transaction
costs, including sales charges (loads) on certain purchase or redemption
payments and redemption fees on certain exchanges and redemptions, and (2)
ongoing costs, including management fees; distribution and service (12b-1)
fees; and other fund expenses. This example is intended to help you understand
your ongoing costs (in dollars) of investing in the funds and to compare these
costs with the ongoing costs of investing in other mutual funds.

The example is based on an investment of $1,000 invested at the beginning of
the period and held for the entire period October 1, 2005 through March 31,
2006.

ACTUAL EXPENSES

The first line for each share class in the tables below provides information
about actual account values and actual expenses. You may use the information in
7this line, together with the amount you invested, to estimate the expenses that
you paid over the period. Simply divide your account value by $1,000 (for
example, an $8,600 account value divided by $1,000 = 8.6), then multiply the
result by the number in the first line under the heading entitled "Expenses
Paid During Period" to estimate the expenses you paid on your account during
this period.

HYPOTHETICAL EXAMPLE FOR COMPARISON PURPOSES

The second line for each share class in the tables below provides information
about hypothetical account values and hypothetical expenses based on each
fund's actual expense ratio and an assumed rate of return of 5% per year before
expenses, which is not each fund's actual return. The hypothetical account
values and expenses may not be used to estimate the actual ending account
balance or expenses you paid for the period. You may use this information to
compare the ongoing costs of investing in each fund and other funds. To do so,
compare this 5% hypothetical example with the 5% hypothetical examples that
appear in the shareholder reports of the other funds.

Please note that the expenses shown in the tables are meant to highlight your
ongoing costs only and do not reflect any transactional costs, such as sales
charges (loads) or redemption fees. Therefore, the second line for each share
class in the tables is useful in comparing ongoing costs only, and will not
help you determine the relative total costs of owning different funds. In
addition, if these transactional costs were included, your costs would have
been higher.

MFS(R) MISSISSIPPI MUNICIPAL BOND FUND



- -------------------------------------------------------------------------------------------
                                                                                 Expenses
                                                                                Paid During
                                Annualized      Beginning         Ending        Period (p)
                                 Expense      Account Value    Account Value     10/01/05-
Share Class                       Ratio         10/01/05          3/31/06         3/31/06
- -------------------------------------------------------------------------------------------
                                                                    
            Actual                0.64%         $1,000.0         $1,009.90         $3.21
    A       -------------------------------------------------------------------------------
            Hypothetical (h)      0.64%         $1,000.00        $1,021.74         $3.23
- -------------------------------------------------------------------------------------------
            Actual                1.40%         $1,000.00        $1,006.10         $7.00
    B       -------------------------------------------------------------------------------
            Hypothetical (h)      1.40%         $1,000.00        $1,017.95         $7.04
- -------------------------------------------------------------------------------------------


(h) 5% class return per year before expenses.
(p) Expenses paid is equal to each class' annualized expense ratio, as shown
    above, multiplied by the average account value over the period, multiplied
    by the number of days in the period, divided by the number of days in the
    year. Expenses paid do not include any applicable sales charges (loads) or
    redemption fees. If these transaction costs had been included, your costs
    would have been higher.

MFS(R) NEW YORK MUNICIPAL BOND FUND



- -------------------------------------------------------------------------------------------
                                                                                 Expenses
                                                                                Paid During
                                Annualized      Beginning         Ending        Period (p)
                                 Expense      Account Value    Account Value     10/01/05-
Share Class                       Ratio         10/01/05          3/31/06         3/31/06
- -------------------------------------------------------------------------------------------
                                                                    
            Actual                0.82%         $1,000.00        $1,006.80         $4.10
    A       -------------------------------------------------------------------------------
            Hypothetical (h)      0.82%         $1,000.00        $1,020.84         $4.13
- -------------------------------------------------------------------------------------------
            Actual                1.57%         $1,000.00        $1,003.00         $7.84
    B       -------------------------------------------------------------------------------
            Hypothetical (h)      1.57%         $1,000.00        $1,017.10         $7.90
- -------------------------------------------------------------------------------------------
            Actual                1.57%         $1,000.00        $1,003.00         $7.84
    C       -------------------------------------------------------------------------------
            Hypothetical (h)      1.57%         $1,000.00        $1,017.10         $7.90
- -------------------------------------------------------------------------------------------


MFS(R) NORTH CAROLINA MUNICIPAL BOND FUND



- -------------------------------------------------------------------------------------------
                                                                                 Expenses
                                                                                Paid During
                                Annualized      Beginning         Ending        Period (p)
                                 Expense      Account Value    Account Value     10/01/05-
Share Class                       Ratio         10/01/05          3/31/06         3/31/06
- -------------------------------------------------------------------------------------------
                                                                    
            Actual                0.87%         $1,000.00        $1,009.20         $4.36
    A       -------------------------------------------------------------------------------
            Hypothetical (h)      0.87%         $1,000.00        $1,020.59         $4.38
- -------------------------------------------------------------------------------------------
            Actual                1.52%         $1,000.00        $1,006.00         $7.60
    B       -------------------------------------------------------------------------------
            Hypothetical (h)      1.52%         $1,000.00        $1,017.35         $7.64
- -------------------------------------------------------------------------------------------
            Actual                1.52%         $1,000.00        $1,006.00         $7.60
    C       -------------------------------------------------------------------------------
            Hypothetical (h)      1.52%         $1,000.00        $1,017.35         $7.64
- -------------------------------------------------------------------------------------------


MFS(R) PENNSYLVANIA MUNICIPAL BOND FUND



- -------------------------------------------------------------------------------------------
                                                                                 Expenses
                                                                                Paid During
                                Annualized      Beginning         Ending        Period (p)
                                 Expense      Account Value    Account Value     10/01/05-
Share Class                       Ratio         10/01/05          3/31/06         3/31/06
- -------------------------------------------------------------------------------------------
                                                                    
            Actual                0.59%         $1,000.00        $1,013.20         $2.96
    A       -------------------------------------------------------------------------------
            Hypothetical (h)      0.59%         $1,000.00        $1,021.99         $2.97
- -------------------------------------------------------------------------------------------
            Actual                1.34%         $1,000.00        $1,010.40         $6.72
    B       -------------------------------------------------------------------------------
            Hypothetical (h)      1.34%         $1,000.00        $1,018.25         $6.74
- -------------------------------------------------------------------------------------------

MFS(R) SOUTH CAROLINA MUNICIPAL BOND FUND

- -------------------------------------------------------------------------------------------
                                                                                 Expenses
                                                                                Paid During
                                Annualized      Beginning         Ending        Period (p)
                                 Expense      Account Value    Account Value     10/01/05-
Share Class                       Ratio         10/01/05          3/31/06         3/31/06
- -------------------------------------------------------------------------------------------
                                                                    
            Actual                0.89%         $1,000.00        $1,009.50         $4.46
   A        -------------------------------------------------------------------------------
            Hypothetical (h)      0.89%         $1,000.00        $1,020.49         $4.48
- -------------------------------------------------------------------------------------------
            Actual                1.54%         $1,000.00        $1,006.20         $7.70
   B        -------------------------------------------------------------------------------
            Hypothetical (h)      1.54%         $1,000.00        $1,017.25         $7.75
- -------------------------------------------------------------------------------------------


(h) 5% class return per year before expenses.
(p) Expenses paid is equal to each class' annualized expense ratio, as shown
    above, multiplied by the average account value over the period, multiplied
    by the number of days in the period, divided by the number of days in the
    year. Expenses paid do not include any applicable sales charges (loads) or
    redemption fees. If these transaction costs had been included, your costs
    would have been higher.

MFS(R) TENNESSEE MUNICIPAL BOND FUND



- -------------------------------------------------------------------------------------------
                                                                                 Expenses
                                                                                Paid During
                                Annualized      Beginning         Ending        Period (p)
                                 Expense      Account Value    Account Value     10/01/05-
Share Class                       Ratio         10/01/05          3/31/06         3/31/06
- -------------------------------------------------------------------------------------------
                                                                    
            Actual                0.93%         $1,000.00        $1,006.70         $4.65
   A        -------------------------------------------------------------------------------
            Hypothetical (h)      0.93%         $1,000.00        $1,020.29         $4.68
- -------------------------------------------------------------------------------------------
            Actual                1.58%         $1,000.00        $1,003.40         $7.89
   B        -------------------------------------------------------------------------------
            Hypothetical (h)      1.58%         $1,000.00        $1,017.05         $7.95
- -------------------------------------------------------------------------------------------


MFS(R) VIRGINIA MUNICIPAL BOND FUND



- -------------------------------------------------------------------------------------------
                                                                                 Expenses
                                                                                Paid During
                                Annualized      Beginning         Ending        Period (p)
                                 Expense      Account Value    Account Value     10/01/05-
Share Class                       Ratio         10/01/05          3/31/06         3/31/06
- -------------------------------------------------------------------------------------------
                                                                    
            Actual                0.88%         $1,000.00        $1,008.40         $4.41
   A        -------------------------------------------------------------------------------
            Hypothetical (h)      0.88%         $1,000.00        $1,020.54         $4.43
- -------------------------------------------------------------------------------------------
            Actual                1.53%         $1,000.00        $1,005.10         $7.65
   B        -------------------------------------------------------------------------------
            Hypothetical (h)      1.53%         $1,000.00        $1,017.30         $7.70
- -------------------------------------------------------------------------------------------
            Actual                1.53%         $1,000.00        $1,006.00         $7.65
   C        -------------------------------------------------------------------------------
            Hypothetical (h)      1.53%         $1,000.00        $1,017.30         $7.70
- -------------------------------------------------------------------------------------------


MFS(R) WEST VIRGINIA MUNICIPAL BOND FUND



- -------------------------------------------------------------------------------------------
                                                                                 Expenses
                                                                                Paid During
                                Annualized      Beginning         Ending        Period (p)
                                 Expense      Account Value    Account Value     10/01/05-
Share Class                       Ratio         10/01/05          3/31/06         3/31/06
- -------------------------------------------------------------------------------------------
                                                                    
            Actual                0.91%         $1,000.00        $1,010.20         $4.56
   A        -------------------------------------------------------------------------------
            Hypothetical (h)      0.91%         $1,000.00        $1,020.39         $4.58
- -------------------------------------------------------------------------------------------
            Actual                1.56%         $1,000.00        $1,006.00         $7.80
   B        -------------------------------------------------------------------------------
            Hypothetical (h)      1.56%         $1,000.00        $1,017.15         $7.85
- -------------------------------------------------------------------------------------------


(h) 5% class return per year before expenses.
(p) Expenses paid is equal to each class' annualized expense ratio, as shown
    above, multiplied by the average account value over the period, multiplied
    by the number of days in the period, divided by the number of days in the
    year. Expenses paid do not include any applicable sales charges (loads) or
    redemption fees. If these transaction costs had been included, your costs
    would have been higher.


PORTFOLIO OF INVESTMENTS - 3/31/06       MFS(R) MISSISSIPPI MUNICIPAL BOND FUND

The Portfolio of Investments is a complete list of all securities owned by your
fund. It is categorized by broad-based asset classes.



Municipal Bonds - 97.5%
- ---------------------------------------------------------------------------------------------------------------------------------
                           ISSUER                                                                     SHARES/PAR      VALUE ($)
- ---------------------------------------------------------------------------------------------------------------------------------
                                                                                                            
Airport and Port           Jackson, MS, Municipal Airport Authority, Airport Rev., "A", AMBAC,
Revenue - 3.0%             5%, 2031                                                                   $ 2,510,000    $  2,590,370
- ---------------------------------------------------------------------------------------------------------------------------------
General Obligations -
General Purpose - 13.2%    Commonwealth of Puerto Rico, ROLS, FGIC, 7.763%, 2016 (z)(v)               $ 3,110,000    $  3,842,778
                           Hinds County, MS, MBIA, 6.25%, 2010                                          1,660,000       1,809,400
                           Hinds County, MS, MBIA, 6.25%, 2011                                          1,285,000       1,425,849
                           Mississippi Development Bank Special Obligations (Jackson, Mississippi)
                           FSA, 5.25%, 2018                                                               600,000         657,348
                           Mississippi Development Bank Special Obligations (Jackson, Mississippi)
                           FSA, 5.25%, 2019                                                             1,260,000       1,382,812
                           Mississippi Development Bank Special Obligations (Jackson, Mississippi)
                           FSA, 5.25%, 2020                                                               620,000         681,826
                           Mississippi Development Bank Special Obligations, Harrison County
                           Mississippi Highway Construction, "N", FGIC, 5%, 2026                        1,000,000       1,037,410
                           Puerto Rico Commonwealth Public Improvement, "A", CIFG, 5%, 2025               500,000         524,385
                                                                                                                     ------------
                                                                                                                     $ 11,361,808
- ---------------------------------------------------------------------------------------------------------------------------------
General Obligations -
Improvement - 3.2%         Puerto Rico Municipal Finance Agency, RITES, FSA, 7.101%, 2017 (z)(v)      $   750,000    $    851,730
                           State of Mississippi, Capital Improvement, 5.5%, 2010 (c)                      750,000         802,702
                           State of Mississippi, Capital Improvement, "I", 6%, 2009 (c)                 1,000,000       1,074,540
                                                                                                                     ------------
                                                                                                                     $  2,728,972
- ---------------------------------------------------------------------------------------------------------------------------------
General Obligations -
Schools - 5.8%             Biloxi, MS, Public School District, MBIA, 5%, 2021                         $ 1,000,000    $  1,029,320
                           Jackson, MS, Public School District, "B", AMBAC, 5.75%, 2010 (c)             1,000,000       1,083,640
                           Jackson, MS, Public School District, "B", AMBAC, 0%, 2022                    2,000,000         850,980
                           Jackson, MS, Public School District, "B", AMBAC, 0%, 2023                    1,000,000         398,440
                           Madison County, MS, School District, "A", MBIA, 5.875%, 2016                 1,500,000       1,605,915
                                                                                                                     ------------
                                                                                                                     $  4,968,295
- ---------------------------------------------------------------------------------------------------------------------------------
Healthcare Revenue -       Alcorn County, MS, Corinth Hospital Rev. (Magnolia Regional Health
Hospitals - 16.2%          Center), AMBAC, 5.75%, 2013                                                $ 1,000,000    $  1,021,090
                           Corinth & Alcorn County, MS, Hospital Rev. (Magnolia Regional Health
                           Center), 5.5%, 2021                                                            400,000         402,128
                           Gulfport, MS, Hospital Facilities Rev. (Memorial Hospital), 5.75%, 2031        500,000         511,965
                           Gulfport, MS, Hospital Facilities Rev. (Memorial Hospital) MBIA,
                           6.125%, 2015                                                                 2,250,000       2,265,322
                           Gulfport, MS, Hospital Facilities Rev. (Memorial Hospital) MBIA,
                           6.2%, 2018                                                                   1,000,000       1,006,990
                           Hinds County, MS, Rev. (Methodist Hospital & Rehabilitation) AMBAC,
                           5.6%, 2012                                                                   2,055,000       2,133,994
                           Jones County, MS, Hospital Rev. (South Central Regional Medical
                           Center), 5.5%, 2017                                                          1,000,000       1,017,480
                           Mississippi Development Bank Special Obligations (Adams County
                           Hospital) FSA, 5.75%, 2016                                                   1,000,000       1,014,640
                           Mississippi Hospital Equipment & Facilities Authority Rev. (Baptist
                           Medical Center) MBIA, 6.5%, 2010                                             1,190,000       1,204,625
                           Mississippi Hospital Equipment & Facilities Authority Rev. (Baptist
                           Medical Center) MBIA, 6%, 2013                                                 750,000         758,955
                           Mississippi Hospital Equipment & Facilities Authority Rev. (Baptist
                           Memorial Healthcare), "B-1", 5%, 2024                                        1,000,000       1,012,270
                           Mississippi Hospital Equipment & Facilities Authority Rev. (Forrest
                           County General Hospital) FSA, 5.625%, 2020                                   1,000,000       1,074,600
                           Mississippi Hospital Equipment & Facilities Authority Rev., Refunding &
                           Improvement, Southwest Regional Medical Center, 5.5%, 2019                     250,000         260,320
                           Mississippi Hospital Equipment & Facilities Authority, Refunding &
                           Improvement, Southwest Regional Medical Center, 5.75%, 2023                    250,000         261,220
                                                                                                                     ------------
                                                                                                                     $ 13,945,599
- ---------------------------------------------------------------------------------------------------------------------------------
Industrial Revenue -
Environmental              Mississippi Business Finance Corp. (Solid Waste Management, Inc.),
Services - 0.3%            4.4%, 2027                                                                 $   250,000    $    250,868
- ---------------------------------------------------------------------------------------------------------------------------------
Industrial Revenue -       Virgin Islands Public Finance Authority, Refinery Facilities Rev.
Other - 0.3%               (Hovensa Refinery), 5.875%, 2022                                           $   210,000    $    221,449
- ---------------------------------------------------------------------------------------------------------------------------------
Industrial Revenue -       Jones County, MS, Solid Waste Disposal Rev. (International Paper Co.)
Paper - 3.1%               "A", 5.8%, 2021                                                            $   500,000    $    511,215
                           Lowndes County, MS, Solid Waste Disposal & Pollution Control Rev.
                           (Weyerhaeuser Co.), 6.8%, 2022                                               1,250,000       1,486,488
                           Warren County, MS, Environmental Improvement Rev. (International Paper
                           Co.), "A", 4.4%, 2015                                                          750,000         714,082
                                                                                                                     ------------
                                                                                                                     $  2,711,785
- ---------------------------------------------------------------------------------------------------------------------------------
Miscellaneous Revenue -
Entertainment &            Mississippi Development Bank, Special Obligation (Diamond Lakes
Tourism - 1.4%             Utilities), 6.25%, 2017                                                    $ 1,150,000    $  1,173,161
- ---------------------------------------------------------------------------------------------------------------------------------
Multi-Family Housing       Gulfport, MS, Community Development Urban Renewal Rev. (Oakview
Revenue - 2.0%             Apartments) FNMA, 7.4%, 2025                                               $ 1,720,000    $  1,723,079
- ---------------------------------------------------------------------------------------------------------------------------------
Single Family Housing -
State - 6.9%               Mississippi Home Corp. Rev., Single Family Rev, "B-2", GNMA, 6.375%, 2032  $   550,000    $    570,922
                           Mississippi Home Corp. Rev., Single Family Rev., "A", GNMA, 6.3%, 2031         205,000         214,301
                           Mississippi Home Corp. Rev., Single Family Rev., "A-2", GNMA, 5.3%, 2023       780,000         796,887
                           Mississippi Home Corp. Rev., Single Family Rev., "A-2", GNMA, 6.95%, 2031      330,000         339,781
                           Mississippi Home Corp. Rev., Single Family Rev., "A-2", GNMA, 6.5%, 2032       320,000         331,219
                           Mississippi Home Corp. Rev., Single Family Rev., "B", GNMA, 6.625%, 2027       235,000         236,981
                           Mississippi Home Corp. Rev., Single Family Rev., "B", GNMA, 5.3%, 2035         860,000         879,513
                           Mississippi Home Corp. Rev., Single Family Rev., "B-2", GNMA, 6.45%, 2033      585,000         612,612
                           Mississippi Home Corp. Rev., Single Family Rev., "C", GNMA, 4.95%, 2025        885,000         889,425
                           Mississippi Home Corp. Rev., Single Family Rev., "F", GNMA, 7.55%, 2027        174,000         176,563
                           Mississippi Home Corp. Rev., Single Family Rev., GNMA, 6.5%, 2024              890,000         891,104
                                                                                                                     ------------
                                                                                                                     $  5,939,308
- ---------------------------------------------------------------------------------------------------------------------------------
State & Local
Agencies - 13.3%           Lamar County, MS, (Jail Project) MBIA, 5.1%, 2021                          $   430,000    $    447,428
                           Mississippi Development Bank Special Obligations (Correctional
                           Facilities), "A", AMBAC, 5.125%, 2025                                        1,000,000       1,047,450
                           Mississippi Development Bank Special Obligations (Hinds County Public
                           Improvements), FSA, 5.25%, 2030                                              1,110,000       1,172,837
                           Mississippi Development Bank Special Obligations (Mississippi, Ltd. Tax
                           Hospital Rev.), 5.1%, 2020                                                   1,000,000       1,037,280
                           Mississippi Development Bank Special Obligations (Natchez Mississippi
                           Convention Center) AMBAC, 6%, 2021                                             750,000         819,360
                           Mississippi Development Bank Special Obligations (Public Improvement
                           Board), 5%, 2023                                                               750,000         750,323
                           Mississippi Development Bank Special Obligations (Southaven, MS,
                           Recreation Facilities), 5.875%, 2014                                           375,000         395,670
                           Mississippi Development Bank Special Obligations (Southaven, MS,
                           Recreation Facilities), 6.2%, 2020                                             400,000         426,268
                           Mississippi Development Bank Special Obligations (Tunica County Highway
                           Construction Project), FGIC, 5%, 2024                                        1,000,000       1,041,600
                           Mississippi Development Bank Special Obligations (Tunica County Highway
                           Construction Project), FGIC, 5%, 2025                                        1,000,000       1,039,390
                           Mississippi Development Bank Special Obligations (Tupelo Fairgrounds),
                           "A", AMBAC, 5%, 2017                                                           785,000         812,342
                           Puerto Rico Public Finance Corp., RITES, AMBAC, 6.826%, 2013 (z)(v)            500,000         591,270
                           Walnut Grove, MS, Correctional Authority, AMBAC, 6%, 2009 (c)                1,750,000       1,914,185
                                                                                                                     ------------
                                                                                                                     $ 11,495,403
- ---------------------------------------------------------------------------------------------------------------------------------
Tax - Other - 1.0%         Puerto Rico Convention Center, District Authority Hotel Occupancy Tax
                           Rev., "A", CIFG, 4.5%, 2036                                                $   750,000    $    730,597
                           Virgin Islands Public Finance Authority Rev., "A", 5.25%, 2024                 135,000         140,243
                                                                                                                     ------------
                                                                                                                     $    870,840
- ---------------------------------------------------------------------------------------------------------------------------------
Tobacco - 0.7%             Children's Trust Fund, Tobacco Settlement Rev., Puerto Rico, 5.375%, 2033  $   235,000    $    240,901
                           Guam Economic Development Authority Tobacco Settlement, "B", 5.5%, 2041        350,000         357,193
                                                                                                                     ------------
                                                                                                                     $    598,094
- ---------------------------------------------------------------------------------------------------------------------------------
Transportation -           Mississippi Development Bank Special Obligations, Madison County (Road
Special Tax - 1.4%         & Bridge) AMBAC, 5.1%, 2019                                                $ 1,175,000    $  1,234,526
- ---------------------------------------------------------------------------------------------------------------------------------
Universities -             Jackson State University, Educational Building Corp. Rev., (Campus
Colleges -  11.0%          Facilities), "A", FGIC, 5%, 2029                                           $ 3,100,000    $  3,196,565
                           Jackson State University, Educational Building Corp. Rev., (Student
                           Recreation Center), AMBAC, 5.125%, 2027                                        750,000         779,483
                           Medical Center, Educational Building Corp. Rev. (University of
                           Mississippi Medical Center), "B", AMBAC, 5.5%, 2023                          1,000,000       1,134,000
                           Mississippi State University Educational Building Corp. Rev. (Athletic
                           Facilities), "A", 6.2%, 2006 (c)                                             1,000,000       1,024,120
                           Mississippi State University Educational Building Corp. Rev., AMBAC,
                           5.5%, 2016                                                                   1,000,000       1,066,270
                           Mississippi State University Educational Building Corp. Rev., AMBAC,
                           5%, 2021                                                                       250,000         258,352
                           Mississippi Valley State University, Educational Building Corp., MBIA,
                           5.5%, 2021                                                                     890,000         941,575
                           University of Mississippi, Educational Building Corp. (Performing Arts
                           Center) AMBAC, 5.25%, 2018                                                   1,000,000       1,038,150
                                                                                                                     ------------
                                                                                                                     $  9,438,515
- ---------------------------------------------------------------------------------------------------------------------------------
Utilities - Municipal
Owned - 3.6%               Guam Power Authority Rev., RITES, AMBAC, 6.565%, 2013 (z)(v)               $ 1,000,000    $  1,118,180
                           Mississippi Development Bank Special Obligations (Okolona Electric
                           System), 5.2%, 2016                                                          1,010,000       1,056,985
                           Puerto Rico Electric Power Authority Rev., "II", 5.25%, 2031                   875,000         909,615
                                                                                                                     ------------
                                                                                                                     $  3,084,780
- ---------------------------------------------------------------------------------------------------------------------------------
Water & Sewer Utility
Revenue - 11.1%            Jackson, MS, Water & Sewer Systems Rev., FGIC, 5.25%, 2009 (c)             $   420,000    $    441,323
                           Mississippi Development Bank Special Obligations (Combined Water Sewer
                           & Solid Waste Management) FSA, 5.25%, 2021                                   1,270,000       1,369,454
                           Mississippi Development Bank Special Obligations (Combined Water Sewer
                           & Solid Waste Management) FSA, 5.05%, 2027                                   1,610,000       1,693,028
                           Mississippi Development Bank Special Obligations (Gulfport Water &
                           Sewer Project) FSA, 5.625%, 2012 (c)                                           500,000         556,655
                           Mississippi Development Bank Special Obligations (Gulfport Water &
                           Sewer Project), "A", FGIC, 5.25%, 2012 (c)                                   2,000,000       2,153,860
                           Mississippi Development Bank Special Obligations (Jackson Water & Sewer
                           System Project) FSA, 5%, 2029                                                2,000,000       2,063,600
                           Mississippi Development Bank Special Obligations (Jackson Water & Sewer
                           System Project), FGIC, 5%, 2032                                                250,000         257,160
                           Mississippi Development Bank Special Obligations, Grenada, MS, Water &
                           Sewer Systems Project, "N", FSA, 5%, 2030                                    1,000,000       1,037,181
                                                                                                                     ------------
                                                                                                                     $  9,572,261
- ---------------------------------------------------------------------------------------------------------------------------------
  TOTAL MUNICIPAL BONDS (IDENTIFIED COST, $80,680,738)                                                               $ 83,909,113
- ---------------------------------------------------------------------------------------------------------------------------------
Floating Rate Demand Notes - 0.8%
- ---------------------------------------------------------------------------------------------------------------------------------
                           Jefferson County, AL, Sewer Rev., 3.22%, due 4/06/06                       $   300,000    $    300,000
                           Oklahoma Industries Authority, Health System Rev. (Integris Baptist
                           Medical Center), "B", 3.18%, due 4/03/06                                       400,000         400,000
- ---------------------------------------------------------------------------------------------------------------------------------
  TOTAL FLOATING RATE DEMAND NOTES, AT IDENTIFIED COST                                                               $    700,000
- ---------------------------------------------------------------------------------------------------------------------------------
  TOTAL INVESTMENTS (IDENTIFIED COST, $81,380,738)                                                                   $ 84,609,113
- ---------------------------------------------------------------------------------------------------------------------------------
Other Assets, Less Liabilities - 1.7%                                                                                   1,452,407
- ---------------------------------------------------------------------------------------------------------------------------------
  NET ASSETS - 100.0%                                                                                                $ 86,061,520
- ---------------------------------------------------------------------------------------------------------------------------------


INTEREST RATE SWAPS

                             NOTIONAL PRINCIPAL                                                                    UNREALIZED
                                 AMOUNT OF               CASH FLOWS PAID                  CASH FLOWS              APPRECIATION
EXPIRATION      CURRENCY          CONTRACT                 BY THE FUND               RECEIVED BY THE FUND        (DEPRECIATION)
- -------------------------------------------------------------------------------------------------------------------------------

                                                                                                      
12/01/07           USD          $2,000,000               Fixed - 3 Year                Floating - 7 Day              $ 27,467
                                                     BMA Swap Index (2.795%)            BMA Swap Index
- -------------------------------------------------------------------------------------------------------------------------------
 7/13/16           USD           1,000,000               Fixed - 10 Year               Floating - 7 Day                21,024
                                                     BMA Swap Index (3.742%)            BMA Swap Index
- -------------------------------------------------------------------------------------------------------------------------------
 6/15/18           USD           2,000,000               Fixed - 12 Year               Floating - 7 Day                10,528
                                                     BMA Swap Index (4.019%)            BMA Swap Index
- -------------------------------------------------------------------------------------------------------------------------------
 6/22/18           USD           1,000,000               Fixed - 12 Year               Floating - 7 Day                19,031
                                                     BMA Swap Index (3.861%)            BMA Swap Index
- -------------------------------------------------------------------------------------------------------------------------------
 9/07/26           USD           1,000,000             Floating - 3 Month               Fixed - 20 Year               (26,908)
                                                        LIBOR Swap Index           LIBOR Swap Index (5.268%)
- -------------------------------------------------------------------------------------------------------------------------------
 9/13/26           USD             850,000             Floating - 3 Month               Fixed - 20 Year               (13,173)
                                                        LIBOR Swap Index           LIBOR Swap Index (5.363%)
- -------------------------------------------------------------------------------------------------------------------------------
                                                                                                                     $ 37,969
                                                                                                                     ========

At March 31, 2006, the fund had sufficient cash and/or securities to cover any
commitments under these derivative contracts.

SEE PORTFOLIO FOOTNOTES AND NOTES TO FINANCIAL STATEMENTS



PORTFOLIO OF INVESTMENTS - 3/31/06          MFS(R) NEW YORK MUNICIPAL BOND FUND

The Portfolio of Investments is a complete list of all securities owned by your
fund. It is categorized by broad-based asset classes.



Municipal Bonds - 97.3%
- ---------------------------------------------------------------------------------------------------------------------------------
                           ISSUER                                                                     SHARES/PAR      VALUE ($)
- ---------------------------------------------------------------------------------------------------------------------------------
                                                                                                            
Airport & Port             New York City, NY, City Industrial Development Agency, Special
Revenue - 3.5%             Facilities Rev. (Terminal One Group), 5.5%, 2024                           $ 1,000,000    $  1,050,690
                           Port Authority NY & NJ, (120th Series) MBIA, 5.5%, 2018                      1,500,000       1,548,705
                           Port Authority NY & NJ, (132nd Series), 5%, 2033                             2,000,000       2,068,160
                           Port Authority NY & NJ, Special Obligation Rev. (JFK International),
                           MBIA, 6.25%, 2015                                                            1,000,000       1,148,430
                                                                                                                     ------------
                                                                                                                     $  5,815,985
- ---------------------------------------------------------------------------------------------------------------------------------
General Obligations -
General Purpose - 7.3%     Commonwealth of Puerto Rico, ROLS, XLCA, 7.693%, 2017 (z)(v)               $ 1,350,000    $  1,656,585
                           Nassau County, NY, Health Systems Rev. (Nassau County), FSA,
                           6%, 2009 (c)                                                                 1,000,000       1,090,570
                           New York NY, "N", 5%, 2026                                                   1,500,000       1,550,730
                           New York, NY, "D", 5%, 2028                                                  2,000,000       2,057,500
                           New York, NY, "A", 6%, 2010 (c)                                                990,000       1,085,763
                           New York, NY, "B", 5.375%, 2017                                              1,250,000       1,332,162
                           New York, NY, "C-1", 5.25%, 2025                                             1,000,000       1,060,310
                           New York, NY, "G", 5%, 2028                                                  2,000,000       2,057,900
                           New York, NY, "J", FGIC, 5.5%, 2026                                            200,000         203,386
                           New York, NY, Unrefunded, "A", 6%, 2019                                         10,000          10,804
                                                                                                                     ------------
                                                                                                                     $ 12,105,710
- ---------------------------------------------------------------------------------------------------------------------------------
General Obligations -
Improvement - 0.1%         Erie County, NY, Public Improvement, "A", FGIC, 5%, 2019                   $   140,000    $    146,556
- ---------------------------------------------------------------------------------------------------------------------------------
General Obligations -      Genesee Valley, NY, Central School District (Angelica Belmont), FGIC,
Schools - 5.5%             5.25%, 2028                                                                $ 1,720,000    $  1,850,290
                           North Babylon, NY, Union Free School District, "A", FGIC, 5.5%, 2018         2,415,000       2,564,899
                           Port Byron, NY, Central School District, AMBAC, ETM, 7.4%, 2012 (c)            500,000         598,480
                           Port Byron, NY, Central School District, AMBAC, ETM, 7.4%, 2013 (c)            500,000         609,525
                           Port Byron, NY, Central School District, AMBAC, ETM, 7.4%, 2014 (c)            500,000         620,510
                           Port Byron, NY, Central School District, AMBAC, ETM, 7.4%, 2015 (c)            500,000         629,670
                           Rome, NY, City School District, FSA, 5.5%, 2009 (c)                          1,000,000       1,065,720
                           Washingtonville, NY, Central School Central District, FGIC, 7.35%, 2008        550,000         593,346
                           Washingtonville, NY, Central School Central District, FGIC, 7.35%, 2009        550,000         611,320
                                                                                                                     ------------
                                                                                                                     $  9,143,760
- ---------------------------------------------------------------------------------------------------------------------------------
Healthcare Revenue -       Chautauqua County, NY, Industrial Development Agency, Civic
Hospitals - 6.6%           Facilities Rev. (Women's Christian Assn.), "A", 6.35%, 2017                $   155,000    $    157,006
                           Chautauqua County, NY, Industrial Development Agency, Civic
                           Facilities Rev. (Women's Christian Assn.), "A", 6.4%, 2029                     490,000         485,605
                           Chemung County, NY, Industrial Development Agency, Civic Facilities
                           Rev. (Arnot Ogden Medical Center), "A", 5%, 2029                               750,000         754,672
                           Chemung County, NY, Industrial Development Agency, Civic Facilities
                           Rev. (Arnot Ogden Medical Center), "B", 5%, 2029                             1,000,000       1,006,230
                           Fulton County, NY, Industrial Development Agency, Civic Facilities
                           Rev. (Nathan Littauer Hospital), "A", 5.75%, 2009                              615,000         613,383
                           Monroe County, NY, Industrial Development Agency, Civic Facilities
                           Rev. (Highland Hospital of Rochester), 5%, 2025                              1,000,000       1,007,340
                           Nassau County, NY, Industrial Development Agency, Civic Facilities
                           Rev. (North Shore Health Systems), "D", 5.625%, 2010                           500,000         528,280
                           New York City, NY, Industrial Development Agency, Civic Facilities
                           Rev. (Staten Island University Hospital), "B", 6.375%, 2031                    500,000         507,290
                           New York City, NY, Health & Hospital Corp. Rev., "A", 5.25%, 2017              760,000         789,260
                           New York Dormitory Authority Rev. (Montefiore Medical Center), AMBAC,
                           5.25%, 2019                                                                    810,000         852,136
                           New York Dormitory Authority Rev. (North Shore Long Island Jewish
                           Group), 5.5%, 2033                                                             250,000         263,290
                           New York Dormitory Authority Rev. (White Plains Hospital), FHA,
                           5.375%, 2043                                                                 1,500,000       1,579,215
                           New York State Dormitory Authority Rev., Non State Supported Debt
                           (Mt. Sinai NYU Health), 5.5%, 2026                                             250,000         253,760
                           New York State Dormitory Authority Rev., Non State Supported Debt
                           (Mt. Sinai NYU Health), "C", 5.5%, 2026                                        500,000         507,520
                           Suffolk County, NY, Industrial Development Agency, Civic Facilities
                           Rev. (Huntington Hospital), "C", 5.875%, 2032                                1,000,000       1,046,180
                           Yonkers, NY, Industrial Development Agency, Civic Facilities Rev.
                           (St. John's Riverside Hospital), "A", 7.125%, 2031                             500,000         519,640
                                                                                                                     ------------
                                                                                                                     $ 10,870,807
- ---------------------------------------------------------------------------------------------------------------------------------
Healthcare Revenue - Long  Suffolk County, NY, Industrial Development Agency, Civic Facilities
Term Care - 0.4%           Rev. (Gurwin Jewish Phase II), 6.7%, 2039                                  $   385,000    $    406,256
                           Westchester County, NY, Industrial Development Agency, Civic
                           Facilities Rev., Continuing Care Retirement (Kendal On Hudson), "A",
                           6.5%, 2034                                                                     300,000         311,640
                                                                                                                     ------------
                                                                                                                     $    717,896
- ---------------------------------------------------------------------------------------------------------------------------------
Human Services - 0.9%      Nassau County, NY, Industrial Development Agency, Civic Facility Rev.
                           (Special Needs Facility), "B-1", 6.5%, 2017                                $   205,000    $    212,558
                           New York Dormitory Authority Rev. (Jewish Board of Families &
                           Children), AMBAC, 5%, 2023                                                     695,000         725,823
                           New York, NY, Industrial Development Agency (PSCH, Inc.),
                           6.375%, 2033                                                                   500,000         519,400
                                                                                                                     ------------
                                                                                                                     $  1,457,781
- ---------------------------------------------------------------------------------------------------------------------------------
Industrial Revenue -       New York City, NY, Industrial Development Agency Rev. (American
Airlines - 0.2%            Airlines, Inc.), 7.625%, 2025                                              $   350,000    $    384,608
- ---------------------------------------------------------------------------------------------------------------------------------
Industrial Revenue -       Onondaga County, NY, Industrial Development Agency, Sewer Facilities
Other - 1.0%               Rev. (Bristol-Meyers Squibb Co.), 5.75%, 2024                              $ 1,000,000    $  1,120,930
                           Virgin Islands Public Finance Authority, Refinery Facilities Rev.
                           (Hovensa Refinery), 5.875%, 2022                                               430,000         453,444
                                                                                                                     ------------
                                                                                                                     $  1,574,374
- ---------------------------------------------------------------------------------------------------------------------------------
Industrial Revenue -       Essex County, NY, Industrial Development Agency, Pollution Control
Paper - 1.6%               Rev. (International Paper Corp.), 5.55%, 2014                              $   750,000    $    787,425
                           Essex County, NY, Industrial Development Agency, Pollution Control
                           Rev. (International Paper Corp.), 6.15%, 2021                                1,000,000       1,030,690
                           Essex County, NY, Industrial Development Agency, Pollution Control
                           Rev. (International Paper Corp.), 6.45%, 2023                                  700,000         747,810
                                                                                                                     ------------
                                                                                                                     $  2,565,925
- ---------------------------------------------------------------------------------------------------------------------------------
Miscellaneous Revenue -
Entertainment &            New York City, NY, City Industrial Development Agency Rev., Liberty
Tourism - 0.3%             IAC/InterActiveCorp, 5%, 2035                                              $   500,000    $    489,655
- ---------------------------------------------------------------------------------------------------------------------------------
Miscellaneous Revenue -    New York City, NY, Industrial Development Agency, Civic Facilities
Other - 0.6%               Rev. (United Jewish Appeal), "A", 5%, 2027                                 $ 1,000,000    $  1,041,720
- ---------------------------------------------------------------------------------------------------------------------------------
Multi-Family Housing
Revenue - 2.6%             New York City, NY, City Housing Development Corp., "E", 4.65%, 2025        $ 1,000,000    $  1,000,730
                           New York City, NY, Housing Development Corp., Multi-Family Housing
                           Rev., 5.5%, 2034                                                             2,000,000       2,045,440
                           New York City, NY, Housing Development Corp., Multi-Family Housing
                           Rev., "C", 5.6%, 2019                                                          400,000         420,744
                           New York State Housing Finance Agency Rev. Multi Family Housing, "A",
                           5.1%, 2041                                                                     840,000         846,418
                                                                                                                     ------------
                                                                                                                     $  4,313,332
- ---------------------------------------------------------------------------------------------------------------------------------
Sales & Excise Tax         Schenectady, NY, Metroplex Development Authority Rev., "A", MBIA,
Revenue - 0.3%             5.375%, 2021                                                               $   475,000    $    513,000
- ---------------------------------------------------------------------------------------------------------------------------------
Single Family Housing -
State - 4.8%               New York Mortgage Agency Rev., 4.6%, 2015                                  $ 2,000,000    $  2,009,620
                           New York Mortgage Agency Rev., 5.8%, 2020                                    1,555,000       1,598,913
                           New York Mortgage Agency Rev., 5.1%, 2024                                    2,000,000       2,022,220
                           New York Mortgage Agency Rev., "130", 4.75%, 2030                            1,500,000       1,468,110
                           New York Mortgage Agency Rev., "B", 5.85%, 2018                                845,000         877,296
                                                                                                                     ------------
                                                                                                                     $  7,976,159
- ---------------------------------------------------------------------------------------------------------------------------------
Solid Waste                Niagara County, NY, Industrial Development Agency, Solid Waste
 Revenue - 0.5%            Disposal Rev., (American Ref-fuel), "C", 5.625%, 2024                      $   850,000    $    883,728
- ---------------------------------------------------------------------------------------------------------------------------------
State & Agency -
Other - 5.7%               New York Dormitory Authority (City University), AMBAC, 5.75%, 2018         $   800,000    $    907,160
                           New York Dormitory Authority (Pace University), MBIA, 6%, 2010 (c)           1,700,000       1,869,354
                           New York Dormitory Authority (School Program), 6.25%, 2020                   1,690,000       1,858,713
                           New York Dormitory Authority (State University), 5.375%, 2010 (c)            1,500,000       1,612,605
                           New York Dormitory Authority (State University), 5.875%, 2017                1,130,000       1,290,144
                           New York Dormitory Authority (Upstate Community Colleges), "A", FSA,
                           6%, 2010 (c)                                                                 1,010,000       1,110,616
                           New York Municipal Bond Bank Agency, Special Program Rev., "A",
                           AMBAC, 5.25%, 2015                                                             715,000         757,271
                                                                                                                     ------------
                                                                                                                     $  9,405,863
- ---------------------------------------------------------------------------------------------------------------------------------
State & Local              New York City Industrial Development Agency (American National Red
Agencies - 12.0%           Cross Project), AMBAC, 5%, 2036                                            $   500,000    $    518,435
                           New York Dormitory Authority (City University), "A", 5.625%, 2016            2,450,000       2,724,988
                           New York Dormitory Authority (Judicial Institute at Pace), AMBAC,
                           5.5%, 2020                                                                   2,500,000       2,672,925
                           New York Dormitory Authority Rev., Mental Health Services, "A", MBIA,
                           5.75%, 2010 (c)                                                                  5,000           5,380
                           New York Dormitory Authority Rev., Mental Health Services, "B", MBIA,
                           5.25%, 2011 (c)                                                                385,000         413,374
                           New York Dormitory Authority Rev., Mental Health Services, "D", FSA,
                           5.25%, 2010 (c)                                                                 35,000          37,223
                           New York Dormitory Authority Rev., Mental Health Services,
                           Unrefunded, "B", MBIA, 5.25%, 2031                                             830,000         866,943
                           New York Dormitory Authority Rev., Mental Health Services,
                           Unrefunded, "D", FSA, 5.25%, 2030                                               70,000          73,352
                           New York Dormitory Authority, Mental Health Services Facilities
                           Improvement, "B", MBIA, 5.25%, 2011 (c)                                        785,000         840,884
                           New York Dormitory Authority, Mental Health Services Facilities
                           Improvement, "D", FSA, 5.25%, 2010 (c)                                         895,000         951,841
                           New York Municipal Bond Bank Agency, Special School Purpose Rev.,
                           5.25%, 2022                                                                  1,000,000       1,056,660
                           New York Urban Development Corp. (Correctional Facilities), AMBAC,
                           0%, 2009                                                                     5,000,000       4,504,100
                           New York Urban Development Corp. (State Facilities), AMBAC, 5.6%, 2015       2,750,000       3,032,123
                           Tobacco Settlement Financing Corp., NY, "A-1", 5.5%, 2018                    2,000,000       2,150,860
                                                                                                                     ------------
                                                                                                                     $ 19,849,088
- ---------------------------------------------------------------------------------------------------------------------------------
Tax - Other - 2.4%         New York City, NY, Transitional Finance Authority Rev., "A",
                           5.75%, 2009 (c)                                                            $ 2,730,000    $  2,938,326
                           New York City, NY, Transitional Finance Authority Rev., "A", 5%, 2026        1,000,000       1,040,330
                                                                                                                     ------------
                                                                                                                     $  3,978,656
- ---------------------------------------------------------------------------------------------------------------------------------
Tobacco - 1.9%             Erie County, NY, Tobacco Asset Securitization Corp., 0%, 2047              $ 8,000,000    $    664,000
                           Guam Economic Development Authority Tobacco Settlement, "B", 5.5%, 2041        400,000         408,220
                           New York County Tobacco Trust II, 5.625%, 2035                                 800,000         818,344
                           Rockland Tobacco Asset Securitization Corp., NY, Tobacco Asset
                           Backed, "C", 0%, 2060                                                        5,000,000          86,550
                           TSASC, Inc., NY, "1", 5%, 2034                                                 750,000         729,128
                           Westchester, NY, Tobacco Asset Securitization Corp., 5.125%, 2045              500,000         486,570
                                                                                                                     ------------
                                                                                                                     $  3,192,812
- ---------------------------------------------------------------------------------------------------------------------------------
Toll Roads - 8.5%          New York Thruway Authority, General Rev., "E", 5.25%, 2008 (c)             $   200,000    $    207,486
                           New York Thruway Authority, General Rev., "E", 5.25%, 2015                   1,300,000       1,344,200
                           Niagara Falls, NY, Bridge Commission Toll Rev., RITES, FGIC,
                           6.53%, 2015 (z)(v)                                                           3,500,000       4,055,940
                           Triborough Bridge & Tunnel Authority Rev., NY, "B", 5%, 2032                 1,000,000       1,026,550
                           Triborough Bridge & Tunnel Authority Rev., NY, ETM, 6%, 2012 (c)             1,000,000       1,087,340
                           Triborough Bridge & Tunnel Authority Rev., NY, RITES, ETM,
                           7.745%, 2017 (z)(v)(c)                                                       5,000,000       6,042,800
                           Triborough Bridge & Tunnel Authority Rev., NY, Unrefunded "A", MBIA,
                           5%, 2032                                                                       310,000         319,799
                                                                                                                     ------------
                                                                                                                     $ 14,084,115
- ---------------------------------------------------------------------------------------------------------------------------------
Transportation - Special   Metropolitan Transportation Authority Rev., NY, AMBAC, ETM,
Tax - 7.6%                 5.75%, 2013 (c)                                                            $   825,000    $    892,122
                           Metropolitan Transportation Authority Rev., NY, Dedicated Tax Fund
                           Rev., 5.5%, 2015 (c)                                                           750,000         833,070
                           Metropolitan Transportation Authority Rev., NY, ETM, 7.375%, 2008 (c)        1,095,000       1,141,943
                           Metropolitan Transportation Authority Rev., NY, FGIC, 5.875%, 2010 (c)       2,000,000       2,166,100
                           Metropolitan Transportation Authority Rev., NY, FGIC, 5%, 2025               2,500,000       2,597,475
                           Metropolitan Transportation Authority, NY, Commuter Facilities Rev.,
                           FGIC, 5.25%, 2011 (c)                                                        1,000,000       1,074,620
                           New York Thruway Authority, General Rev., Highway & Bridges, "A",
                           FSA, 5.8%, 2010 (c)                                                             20,000          21,740
                           New York Thruway Authority, General Rev., Highway & Bridges, "B-1",
                           FGIC, 5.4%, 2010 (c)                                                         2,000,000       2,148,460
                           Puerto Rico Highway & Transportation Authority Rev., "Y", 5%, 2036           1,700,000       1,710,710
                                                                                                                     ------------
                                                                                                                     $ 12,586,240
- ---------------------------------------------------------------------------------------------------------------------------------
Universities -             Amherst, NY, Industrial Development Agency Rev. (Daemen College), "A",
Colleges - 4.6%            6%, 2021                                                                   $ 1,000,000    $  1,065,030
                           Cattaraugus County, NY, Industrial Development Agency Rev. (Jamestown
                           Community College), "A", 6.4%, 2019                                            500,000         559,780
                           Hempstead Town, NY, Industrial Development Agency, Civic Facilities
                           Rev. (Hofstra University), MBIA, 5.8%, 2015                                  1,500,000       1,537,620
                           New York Dormitory Authority Rev. (Fordham University), AMBAC, 7.2%, 2015       40,000          40,081
                           New York Dormitory Authority Rev. (St. John's University), "A", MBIA,
                           5%, 2017                                                                       300,000         315,048
                           New York Dormitory Authority Rev. (Yeshiva University), AMBAC,
                           5.125%, 2034                                                                 1,000,000       1,055,240
                           Onondaga County, NY, Industrial Development Agency Rev. (Le Moyne
                           College), 5.625%, 2021                                                         750,000         803,318
                           Schenectady, NY, Industrial Development Agency, Civic Facilities Rev.
                           (Union College), "A", AMBAC, 5%, 2032                                        2,000,000       2,068,560
                           Utica, NY, Industrial Development Agency, Civic Facilities Rev.
                           (Utica College), "A", 5.3%, 2008                                               110,000         111,179
                                                                                                                     ------------
                                                                                                                     $  7,555,856
- ---------------------------------------------------------------------------------------------------------------------------------
Universities -             New York Dormitory Authority Rev. (New York University), "A", FGIC,
Dormitories - 0.6%         5%, 2029                                                                   $ 1,000,000    $  1,041,720
- ---------------------------------------------------------------------------------------------------------------------------------
Utilities - Investor       New York Environmental Facilities, Water Facilities Rev. (NY American
Owned - 1.5%               Water Co.), 8.85%, 2015                                                    $ 2,500,000    $  2,507,525
- ---------------------------------------------------------------------------------------------------------------------------------
Utilities - Municipal
Owned - 3.3%               Guam Power Authority Rev., RITES, "B-1", AMBAC, 6.565%, 2014 (z)(v)        $   500,000    $    557,410
                           Long Island Power Authority, Electrical Systems Rev., "C", 5.5%, 2021          400,000         430,152
                           New York Power Authority Rev., 5.25%, 2040                                   3,000,000       3,148,620
                           New York Power Authority Rev., "A", 5%, 2021                                 1,000,000       1,048,660
                           Virgin Islands Water & Power Authority Rev., 5.5%, 2017                        200,000         203,760
                                                                                                                     ------------
                                                                                                                     $  5,388,602
- ---------------------------------------------------------------------------------------------------------------------------------
Water & Sewer Utility      New York City, NY, Municipal Water & Sewer Finance Authority Rev.,
Revenue - 13.0%            5.5%, 2010 (c)                                                             $ 1,850,000    $  1,997,038
                           New York City, NY, Municipal Water & Sewer Finance Authority Rev.,
                           "A", 5%, 2027                                                                1,500,000       1,551,150
                           New York City, NY, Municipal Water & Sewer Finance Authority Rev.,
                           "A", ETM, 6%, 2010 (c)                                                         620,000         675,899
                           New York City, NY, Municipal Water & Sewer Finance Authority Rev.,
                           "B", AMBAC, 5%, 2028                                                         1,500,000       1,565,445
                           New York City, NY, Municipal Water & Sewer Finance Authority Rev.,
                           "C", 4.75%, 2033                                                             1,500,000       1,511,970
                           New York City, NY, Municipal Water & Sewer Finance Authority Rev.,
                           AMBAC, ETM, 6.75%, 2014 (c)                                                  1,000,000       1,152,370
                           New York City, NY, Municipal Water & Sewer Finance Authority Rev.,
                           FGIC, 5.25%, 2033                                                            2,000,000       2,091,260
                           New York Environmental Facilities Corp., Clean Water & Drinking Rev.,
                           5%, 2024                                                                     1,005,000       1,048,004
                           New York Environmental Facilities Corp., Clean Water & Drinking Rev.,
                           5%, 2025                                                                     1,500,000       1,566,180
                           New York Environmental Facilities Corp., Clean Water & Drinking Rev.,
                           5%, 2029                                                                     2,000,000       2,085,880
                           New York Environmental Facilities Corp., Pollution Control Rev.,
                           5.75%, 2010                                                                    175,000         189,374
                           New York Environmental Facilities Corp., Pollution Control Rev.,
                           6.875%, 2010                                                                   220,000         220,396
                           New York Environmental Facilities Corp., Pollution Control Rev.,
                           7.25%, 2010                                                                     70,000          70,137
                           New York Environmental Facilities Corp., Pollution Control Rev., ETM,
                           5.75%, 2010 (c)                                                                945,000       1,021,091
                           New York Environmental Facilities Corp., Pollution Control Rev., ETM,
                           5.75%, 2010 (c)                                                              1,115,000       1,204,780
                           New York Environmental Facilities Corp., Water Facilities Rev., 6%, 2031     1,005,000       1,069,642
                           New York Environmental Facilities Corp., Water Facilities Rev.
                           (Spring Valley Water Co.), "B", AMBAC, 6.15%, 2024                           1,500,000       1,513,950
                           Suffolk County, NY, Water Authority Rev., MBIA, 5.1%, 2012                     660,000         706,292
                           Suffolk County, NY, Water Authority Rev., MBIA, ETM, 5.1%, 2012 (c)            235,000         252,150
                                                                                                                     ------------
                                                                                                                     $ 21,493,008
- ---------------------------------------------------------------------------------------------------------------------------------
  TOTAL MUNICIPAL BONDS (IDENTIFIED COST, $151,369,624)                                                              $161,084,481
- ---------------------------------------------------------------------------------------------------------------------------------
Floating Rate Demand Notes - 1.1%
- ---------------------------------------------------------------------------------------------------------------------------------
                           Jefferson County, AL, Sewer Rev., Capital Improvement Warrants, "A",
                           3.22%, due 4/06/06                                                         $   250,000    $    250,000
                           New York City, NY, Municipal Water & Sewer Finance Authority Rev.,
                           3.08%, due 4/03/06                                                             700,000         700,000
                           Washington State Health Care Facilities, "A", 3.12%, due 4/03/06               900,000         900,000
- ---------------------------------------------------------------------------------------------------------------------------------
  TOTAL FLOATING RATE DEMAND NOTES, AT IDENTIFIED COST                                                               $  1,850,000
- ---------------------------------------------------------------------------------------------------------------------------------
  TOTAL INVESTMENTS (IDENTIFIED COST, $153,219,624)                                                                  $162,934,481
- ---------------------------------------------------------------------------------------------------------------------------------
Other Assets, Less Liabilities - 1.6%                                                                                   2,650,810
- ---------------------------------------------------------------------------------------------------------------------------------
  NET ASSETS - 100.0%                                                                                                $165,585,291
- ---------------------------------------------------------------------------------------------------------------------------------


INTEREST RATE SWAPS

                             NOTIONAL PRINCIPAL                                                                    UNREALIZED
                                 AMOUNT OF               CASH FLOWS PAID                  CASH FLOWS              APPRECIATION
EXPIRATION      CURRENCY          CONTRACT                 BY THE FUND               RECEIVED BY THE FUND        (DEPRECIATION)
- -------------------------------------------------------------------------------------------------------------------------------
                                                                                                     
12/01/07           USD          $3,000,000               Fixed - 3 Year                Floating - 7 Day             $ 41,200
                                                     BMA Swap Index (2.795%)               BMA Index
- -------------------------------------------------------------------------------------------------------------------------------
 6/06/16           USD           2,000,000               Fixed - 10 Year               Floating - 7 Day               10,603
                                                     BMA Swap Index (3.938%)            BMA Swap Index
- -------------------------------------------------------------------------------------------------------------------------------
 6/16/16           USD           1,500,000               Fixed - 10 Year               Floating - 7 Day                3,865
                                                     BMA Swap Index (3.977%)            BMA Swap Index
- -------------------------------------------------------------------------------------------------------------------------------
 7/13/16           USD           1,000,000               Fixed - 10 Year               Floating - 7 Day               21,024
                                                     BMA Swap Index (3.742%)            BMA Swap Index
- -------------------------------------------------------------------------------------------------------------------------------
 8/30/16           USD           1,500,000               Fixed - 10 Year               Floating - 7 Day               11,519
                                                     BMA Swap Index (3.926%)            BMA Swap Index
- -------------------------------------------------------------------------------------------------------------------------------
 6/22/18           USD           2,000,000               Fixed - 12 Year               Floating - 7 Day               38,062
                                                     BMA Swap Index (3.861%)            BMA Swap Index
- -------------------------------------------------------------------------------------------------------------------------------
 8/02/21           USD           1,000,000               Fixed - 15 Year               Floating - 7 Day               15,981
                                                     BMA Swap Index (4.011%)            BMA Swap Index
- -------------------------------------------------------------------------------------------------------------------------------
 9/13/26           USD           1,650,000             Floating - 3 Month               Fixed - 20 Year              (25,569)
                                                        LIBOR Swap Index           LIBOR Swap Index (5.363%)
- -------------------------------------------------------------------------------------------------------------------------------
                                                                                                                    $116,685
                                                                                                                    ========

At March 31, 2006, the fund had sufficient cash and/or securities to cover any
commitments under these derivative contracts.

SEE PORTFOLIO FOOTNOTES AND NOTES TO FINANCIAL STATEMENTS



PORTFOLIO OF INVESTMENTS - 3/31/06    MFS(R) NORTH CAROLINA MUNICIPAL BOND FUND

The Portfolio of Investments is a complete list of all securities owned by your
fund. It is categorized by broad-based asset classes.



Municipal Bonds - 98.1%
- ---------------------------------------------------------------------------------------------------------------------------------
                           ISSUER                                                                     SHARES/PAR      VALUE ($)
- ---------------------------------------------------------------------------------------------------------------------------------
                                                                                                            
Airport & Port
Revenue - 5.3%             Charlotte, NC, Airport Rev., "A", MBIA, 5%, 2029                           $ 2,000,000    $  2,075,040
                           Charlotte, NC, Airport Rev., "A", MBIA, 5%, 2034                             4,485,000       4,628,296
                           Charlotte, NC, Airport Rev., "B", MBIA, 5.875%, 2019                         1,000,000       1,064,840
                           Charlotte, NC, Airport Rev., "B", MBIA, 5.875%, 2020                         3,775,000       4,016,223
                           Raleigh Durham, NC, Airport Authority Rev., "A", AMBAC, 5%, 2030             3,000,000       3,124,230
                           Raleigh Durham, NC, Airport Authority Rev., "A", FGIC, 5.25%, 2018           2,700,000       2,862,783
                                                                                                                     ------------
                                                                                                                     $ 17,771,412
- ---------------------------------------------------------------------------------------------------------------------------------
General Obligations -
General Purpose - 1.0%     Charlotte, NC, 5.5%, 2010 (c)                                              $ 3,100,000    $  3,369,948
- ---------------------------------------------------------------------------------------------------------------------------------
General Obligations -
Improvement - 1.4%         New Hanover County, NC, Public Improvement, 5.8%, 2010 (c)                 $ 4,200,000    $  4,636,926
- ---------------------------------------------------------------------------------------------------------------------------------
General Obligations -
Schools - 3.8%             Brunswick County, NC, FGIC, 5%, 2020                                       $ 2,800,000    $  2,961,168
                           Cumberland County, NC, 5.8%, 2010 (c)                                        4,400,000       4,805,856
                           Johnston County, NC, FGIC, 5.6%, 2010 (c)                                    2,000,000       2,173,880
                           New Hanover County, NC, Public Improvement, 5%, 2021                         1,435,000       1,499,790
                           New Hanover County, NC, School Improvement, 5%, 2019                         1,255,000       1,327,301
                                                                                                                     ------------
                                                                                                                     $ 12,767,995
- ---------------------------------------------------------------------------------------------------------------------------------
Healthcare Revenue -       Catawba County, NC, Hospital Rev. (Catawba Memorial Hospital), AMBAC,
Hospitals - 22.8%          5%, 2017                                                                   $ 1,200,000    $  1,242,816
                           Charlotte-Mecklenberg, NC, Healthcare Systems Rev. (Carolinas
                           Healthcare), "A", 5.125%, 2022                                               1,000,000       1,028,330
                           Charlotte-Mecklenberg, NC, Healthcare Systems Rev. (Carolinas
                           Healthcare), "A", 5%, 2031                                                   3,500,000       3,577,210
                           Cumberland County, NC, Hospital Facilities Rev. (Cumberland
                           Hospital), MBIA, 0%, 2009                                                    1,800,000       1,563,948
                           New Hanover County, NC, Hospital Rev. (New Hanover Regional Medical
                           Center), MBIA, 5%, 2019                                                      6,225,000       6,412,310
                           North Carolina Medical Care Commission (Cleveland County Healthcare),
                           "A", AMBAC, 5%, 2035                                                         1,305,000       1,343,080
                           North Carolina Medical Care Commission (Morehead Memorial Hospital),
                           FHA, 5%, 2026                                                                2,000,000       2,078,280
                           North Carolina Medical Care Commission (Northeast Medical Center),
                           5.25%, 2029                                                                  2,000,000       2,082,540
                           North Carolina Medical Care Commission (Novant Health), "A", MBIA,
                           5%, 2018                                                                     1,975,000       2,038,753
                           North Carolina Medical Care Commission (Novant Health), Obligations
                           Group A, 5%, 2020                                                              500,000         517,500
                           North Carolina Medical Care Commission, Health Care Facilities Rev.
                           (Wakemed), AMBAC, 5%, 2021                                                   3,500,000       3,661,630
                           North Carolina Medical Care Commission, Hospital Rev. (Betsy Johnson
                           Health Care System), FSA, 5.125%, 2032                                       1,500,000       1,567,770
                           North Carolina Medical Care Commission, Hospital Rev. (Duke
                           University), "C", 5.25%, 2021                                                5,975,000       5,992,029
                           North Carolina Medical Care Commission, Hospital Rev. (Gaston
                           Memorial Hospital), 5.5%, 2015                                               5,790,000       5,938,687
                           North Carolina Medical Care Commission, Hospital Rev. (Gaston
                           Memorial Hospital), 5.5%, 2019                                               6,500,000       6,666,465
                           North Carolina Medical Care Commission, Hospital Rev. (Mission-St.
                           Joseph Health Systems), 5.5%, 2021                                           2,825,000       3,001,563
                           North Carolina Medical Care Commission, Hospital Rev. (Mission-St.
                           Joseph Health Systems), MBIA, 5.1%, 2018                                     1,500,000       1,550,505
                           North Carolina Medical Care Commission, Hospital Rev. (Pitt County
                           Memorial Hospital), "B", 5%, 2008 (c)                                        3,000,000       3,131,070
                           North Carolina Medical Care Commission, Hospital Rev. (Rex
                           Healthcare), AMBAC, 5%, 2017                                                 5,000,000       5,152,100
                           North Carolina Medical Care Commission, Hospital Rev. (Southeastern
                           Regional Medical Center), 5.375%, 2032                                       3,330,000       3,436,427
                           North Carolina Medical Care Commission, Hospital Rev. (Wilson
                           Memorial Hospital), AMBAC, 0%, 2013                                          1,000,000         718,700
                           North Carolina Medical Care Commission, Hospital Rev. (Wilson
                           Memorial Hospital), AMBAC, 0%, 2015                                          1,140,000         739,712
                           Northern Hospital District Surry County, NC, Health Care Facilities
                           Rev., ASST GTY, 5.5%, 2019                                                   1,250,000       1,308,338
                           Northern Hospital District Surry County, NC, Health Care Facilities
                           Rev., ASST GTY, 5.1%, 2021                                                   1,000,000       1,037,420
                           Pitt County, NC, Rev., Pitt County Memorial Hospital, ETM,
                           5.25%, 2021 (c)                                                             10,135,000      10,611,649
                                                                                                                     ------------
                                                                                                                     $ 76,398,832
- ---------------------------------------------------------------------------------------------------------------------------------
Healthcare Revenue -       North Carolina Medical Care Commission, Health Care Facilities Rev.
Long Term Care - 1.1%      (Arbor Acres Community), 6.375%, 2032                                      $ 1,000,000    $  1,037,840
                           North Carolina Medical Care Commission, Health Care Facilities Rev.
                           (Deerfield), "A", 5%, 2023                                                   1,000,000       1,023,770
                           North Carolina Medical Care Commission, Health Care Facilities Rev.
                           (Givens Estates), 6.5%, 2032                                                   800,000         836,848
                           North Carolina Medical Care Commission, Health Care Facilities Rev.,
                           "A", 6.125%, 2035                                                              750,000         773,123
                                                                                                                     ------------
                                                                                                                     $  3,671,581
- ---------------------------------------------------------------------------------------------------------------------------------
Human Services - 0.7%      Cumberland County, NC, Finance Corp., Installment Payment Rev.
                           (Detention Center & Mental Health), AMBAC, 5.625%, 2019                    $ 2,125,000    $  2,250,885
- ---------------------------------------------------------------------------------------------------------------------------------
Industrial Revenue -       Virgin Islands Public Finance Authority, Refinery Facilities Rev.
Other - 0.3%               (Hovensa Refinery), 5.875%, 2022                                           $   860,000    $    906,887
- ---------------------------------------------------------------------------------------------------------------------------------
Industrial Revenue -       Columbus County, NC, Industrial Facilities & Pollution Control
Paper - 2.3%               Financing Authority Rev. (International Paper Co.), "A", 5.8%, 2016        $ 2,000,000    $  2,072,840
                           Haywood County, NC, Industrial Facilities & Pollution Control
                           Financing Authority Rev. (Champion International Corp.), "A", 5.75%, 2025    5,400,000       5,446,980
                                                                                                                     ------------
                                                                                                                     $  7,519,820
- ---------------------------------------------------------------------------------------------------------------------------------
Multi-Family Housing       Charlotte, NC, Housing Authority Rev., Mortgage Rocky Branch II,
Revenue - 2.4%             GNMA, 4.65%, 2035                                                          $ 2,000,000    $  1,940,560
                           Mecklenburg County, NC (Little Rock Apartments), FNMA, 5.15%, 2022           1,000,000       1,025,510
                           North Carolina Housing Finance Agency, "H", FHA, 6.05%, 2028                 3,920,000       3,986,993
                           North Carolina Medical Care Commission, Health Care Facilities Rev.,
                           "A", 5.8%, 2034                                                              1,000,000       1,052,900
                                                                                                                     ------------
                                                                                                                     $  8,005,963
- ---------------------------------------------------------------------------------------------------------------------------------
Single Family Housing -
State - 6.1%               North Carolina Housing Finance Agency Rev., "14-A", AMBAC, 4.35%, 2028     $ 3,070,000    $  3,075,587
                           North Carolina Housing Finance Agency Rev., "15-A", FSA, 4.95%, 2032           435,000         436,357
                           North Carolina Housing Finance Agency Rev., "19-A", 5.1%, 2030               2,430,000       2,453,012
                           North Carolina Housing Finance Agency Rev., "22-A", 4.8%, 2026               2,000,000       2,007,960
                           North Carolina Housing Finance Agency Rev., "23-A", 4.8%, 2037               3,000,000       2,951,460
                           North Carolina Housing Finance Agency Rev., "5-A", 5.55%, 2019               3,080,000       3,140,892
                           North Carolina Housing Finance Agency Rev., "7-A", 6.15%, 2020                 695,000         716,260
                           North Carolina Housing Finance Agency Rev., "A", 5.25%, 2020                 1,430,000       1,439,052
                           North Carolina Housing Finance Agency Rev., "A", 5.375%, 2023                  245,000         248,795
                           North Carolina Housing Finance Agency Rev., "PP", FHA, 6.15%, 2017           1,420,000       1,455,855
                           North Carolina Housing Finance Agency Rev., "RR", 5.85%, 2028                2,485,000       2,517,206
                                                                                                                     ------------
                                                                                                                     $ 20,442,436
- ---------------------------------------------------------------------------------------------------------------------------------
State & Agency -
Other - 8.2%               Brunswick County, NC, Certificates of Participation, FSA, 5.5%, 2020       $ 1,000,000    $  1,078,480
                           Cabarrus County, NC, Installment Financing Contract, 5%, 2021                5,500,000       5,750,525
                           Carteret County, NC, AMBAC, 5.625%, 2020                                     1,010,000       1,080,377
                           Charlotte, NC, Certificates of Participation (Convention Facilities),
                           AMBAC, 0%, 2006                                                              1,075,000       1,050,555
                           Charlotte, NC, Certificates of Participation (Convention Facilities),
                           AMBAC, 0%, 2008                                                              3,000,000       2,708,250
                           Charlotte, NC, Certificates of Participation (Public Safety
                           Facilities), "D", 5.5%, 2010 (c)                                             3,000,000       3,235,440
                           Charlotte, NC, Certificates of Participation (Transit Projects), "E",
                           5%, 2035                                                                     1,990,000       2,045,820
                           Harnett County, NC, Certificates of Participation, FSA, 5.25%, 2015          1,020,000       1,116,033
                           Harnett County, NC, Certificates of Participation, FSA, 5.5%, 2016           1,225,000       1,315,711
                           Pitt County, NC, Certificates of Participation (School Facilities
                           Improvement), "A", FSA, 5.5%, 2020                                           1,250,000       1,326,788
                           Pitt County, NC, Certificates of Participation (School Facilities
                           Improvement), "B", FSA, 5.75%, 2018                                          1,390,000       1,501,937
                           Pitt County, NC, Certificates of Participation (School Facilities
                           Improvement), "B", FSA, 5.75%, 2019                                          1,390,000       1,500,866
                           Randolph County, NC, Certificates of Participation, FSA, 5.6%, 2009 (c)      3,000,000       3,201,330
                           Rockingham, NC, Certificates of Participation, AMBAC, 5.125%, 2024             350,000         371,389
                                                                                                                     ------------
                                                                                                                     $ 27,283,501
- ---------------------------------------------------------------------------------------------------------------------------------
State & Local Agencies -
5.6%                       Cabarrus County, NC, Development Corp., AMBAC, 5.3%, 2019                  $ 1,250,000    $  1,322,425
                           Forsyth County, NC, Certificates of Participation (Public Facilities
                           & Equipment Project), 5.25%, 2013 (c)                                          775,000         842,402
                           Forsyth County, NC, Certificates of Participation (Public Facilities
                           & Equipment Project), 5.25%, 2013 (c)                                        1,230,000       1,336,973
                           Iredell County, NC, Public Facilities (School Projects), AMBAC,
                           5.5%, 2010 (c)                                                               1,000,000       1,078,480
                           New Hanover County, NC, Certificates of Participation (New Hanover
                           County Projects), AMBAC, 5.25%, 2011 (c)                                     1,635,000       1,770,362
                           Puerto Rico Housing Bank & Finance Agency (Kidder), 7.5%, 2006               7,000,000       7,138,110
                           Puerto Rico Public Finance Corp., RITES, AMBAC, 7.535%, 2016 (z)(v)          1,500,000       1,820,220
                           Rutherford County, NC, Certificates of Participation (Rutherford
                           County School), AMBAC, 5%, 2023                                                840,000         879,598
                           Winston Salem, NC, Certificates of Participation, "C", 5%, 2018              2,575,000       2,686,446
                                                                                                                     ------------
                                                                                                                     $ 18,875,016
- ---------------------------------------------------------------------------------------------------------------------------------
Tax - Other - 0.8%         Virgin Islands Public Finance Authority Rev., "A", 5.5%, 2022              $ 1,650,000    $  1,709,912
                           Virgin Islands Public Finance Authority Rev., ASST GTY, 5.5%, 2018           1,000,000       1,050,330
                                                                                                                     ------------
                                                                                                                     $  2,760,242
- ---------------------------------------------------------------------------------------------------------------------------------
Tobacco - 0.6%             Children's Trust Fund, Tobacco Settlement Rev., Puerto Rico, 5.375%, 2033  $ 1,820,000    $  1,865,700
                           Children's Trust Fund, Tobacco Settlement Rev., Puerto Rico, "A",
                           0%, 2050                                                                     2,000,000         130,800
                                                                                                                     ------------
                                                                                                                     $  1,996,500
- ---------------------------------------------------------------------------------------------------------------------------------
Transportation - Special   Commonwealth of Puerto Rico, Highway & Transportation Authority Rev.,
Tax - 2.2%                 RITES, FSA, 8.076%, 2018 (z)(v)                                            $ 5,425,000    $  7,335,251
- ---------------------------------------------------------------------------------------------------------------------------------
Universities -
Colleges - 10.0%           Appalachian State University, NC, "A", FGIC, 5.125%, 2022                  $ 1,260,000    $  1,338,561
                           Appalachian State University, NC, Rev., "C", MBIA, 5%, 2030                  1,000,000       1,043,690
                           Appalachian State University, NC, Rev., FSA, 5.6%, 2010 (c)                  2,285,000       2,473,764
                           East Carolina University, NC, Rev., "A", AMBAC, 5.25%, 2021                  1,375,000       1,472,254
                           North Carolina Capital Facilities, Finance Agency Rev. (Duke
                           University), "A", 5%, 2041                                                   2,000,000       2,057,840
                           North Carolina Capital Facilities, Finance Agency Rev. (Duke
                           University), "A", 5.125%, 2041                                               5,000,000       5,145,550
                           North Carolina Capital Facilities, Finance Agency Rev. (Duke
                           University), "A", 5.25%, 2042                                                2,000,000       2,092,760
                           North Carolina Capital Facilities, Finance Agency Rev. (High Point
                           University), 5.125%, 2018                                                      510,000         536,658
                           North Carolina Capital Facilities, Finance Agency Rev. (High Point
                           University), 5.125%, 2021                                                      300,000         315,084
                           North Carolina Capital Facilities, Finance Agency Rev. (Johnson &
                           Wales University), "A", XLCA, 5.25%, 2021                                      775,000         829,653
                           North Carolina Capital Facilities, Finance Agency Rev. (Johnson &
                           Wales University), "A", XLCA, 5.25%, 2022                                    1,870,000       1,998,357
                           North Carolina Capital Facilities, Finance Agency Rev. (Johnson &
                           Wales University), "A", XLCA, 5%, 2033                                       3,385,000       3,481,439
                           Puerto Rico Industrial Tourist Authority (University Plaza), "A",
                           MBIA, 5%, 2020                                                               2,180,000       2,270,993
                           University of North Carolina, Greensboro Rev., "A", FSA, 5%, 2020            2,835,000       2,969,266
                           University of North Carolina, Systems Pool Rev., "C", AMBAC, 5%, 2029        2,000,000       2,076,000
                           University of North Carolina, University Rev., 5%, 2028                      2,000,000       2,081,120
                           University of North Carolina, Wilmington Rev., "A", AMBAC, 5%, 2019          1,375,000       1,441,358
                                                                                                                     ------------
                                                                                                                     $ 33,624,347
- ---------------------------------------------------------------------------------------------------------------------------------
Utilities - Investor       Wake County, NC, Industrial Facilities & Pollution Control Rev.
Owned - 0.8%               (Carolina Power & Light Co.), 5.375%, 2017                                 $ 2,500,000    $  2,631,400
- ---------------------------------------------------------------------------------------------------------------------------------
Utilities - Municipal
Owned - 13.6%              North Carolina Eastern Municipal Power Agency, "A", ETM, 7.5%, 2010 (c)    $ 2,595,000    $  2,939,071
                           North Carolina Eastern Municipal Power Agency, "A", ETM, 5%, 2017 (c)        3,120,000       3,354,094
                           North Carolina Eastern Municipal Power Agency, "A", MBIA, 7.5%, 2010         3,005,000       3,394,478
                           North Carolina Eastern Municipal Power Agency, "B", MBIA, 7.25%, 2007        5,000,000       5,133,700
                           North Carolina Eastern Municipal Power Agency, AMBAC, 6%, 2018               1,245,000       1,448,408
                           North Carolina Eastern Municipal Power Agency, RITES, AMBAC,
                           8.042%, 2018 (z)(v)                                                          6,500,000       8,623,940
                           North Carolina Municipal Power Agency, Catawba Electric Rev.,
                           6.375%, 2013                                                                 1,000,000       1,087,360
                           North Carolina Municipal Power Agency, Catawba Electric Rev., MBIA,
                           7%, 2007                                                                     5,000,000       5,124,700
                           North Carolina Municipal Power Agency, Catawba Electric Rev., MBIA,
                           6%, 2011                                                                     5,000,000       5,488,500
                           North Carolina Municipal Power Agency, Catawba Electric Rev., ROLS,
                           MBIA, 7.236%, 2019 (z)(v)                                                    5,000,000       5,652,300
                           North Carolina Municipal Power Agency, Catawba Electric Rev., ROLS,
                           MBIA, 7.236%, 2020 (z)(v)                                                    3,000,000       3,384,120
                                                                                                                     ------------
                                                                                                                     $ 45,630,671
- ---------------------------------------------------------------------------------------------------------------------------------
Water & Sewer Utility
Revenue - 9.1%             Broad River, NC, Water Authority Rev., MBIA, 5.75%, 2010 (c)               $ 1,490,000    $  1,621,180
                           Cary, NC, Combined Enterprise Systems Rev., 5%, 2026                         1,000,000       1,038,320
                           Charlotte, NC, Storm Water Fee Rev., 6%, 2010 (c)                            3,180,000       3,490,336
                           Charlotte, NC, Storm Water Fee Rev., 5%, 2034                                3,675,000       3,806,675
                           Charlotte, NC, Water & Sewer Systems Rev., 5.75%, 2009 (c)                   2,000,000       2,143,080
                           Charlotte, NC, Water & Sewer Systems Rev., 5.75%, 2010 (c)                   3,075,000       3,345,723
                           Charlotte, NC, Water & Sewer Systems Rev., 5.5%, 2017                        1,650,000       1,771,242
                           Durham County, NC, Enterprise Systems Rev., MBIA, 5%, 2023                   1,675,000       1,758,047
                           Greensboro, NC, Enterprise Systems Rev., "A", 5.125%, 2018                   1,490,000       1,575,899
                           Greensboro, NC, Enterprise Systems Rev., "A", 5.125%, 2019                   1,750,000       1,848,368
                           Greenville, NC, Combined Enterprise Systems Rev., FSA, 5%, 2016              1,005,000       1,061,260
                           Greenville, NC, Combined Enterprise Systems Rev., FSA, 5.25%, 2019           1,170,000       1,256,358
                           Harnett County, NC, Water & Sewer Systems Rev., AMBAC, 5%, 2028                700,000         728,483
                           Kannapolis, NC, Water & Sewer Rev., "B", FSA, 5.25%, 2021                    1,000,000       1,051,370
                           Raleigh, NC, Combined Enterprise Systems Rev., 5.125%, 2007 (c)              2,000,000       2,066,500
                           Raleigh, NC, Combined Enterprise Systems Rev., 5%, 2024                        385,000         403,938
                           Winston Salem, NC, Water & Sewer Systems Rev., 5%, 2033                      1,600,000       1,664,264
                                                                                                                     ------------
                                                                                                                     $ 30,631,043
- ---------------------------------------------------------------------------------------------------------------------------------
  TOTAL MUNICIPAL BONDS (IDENTIFIED COST, $310,088,695)                                                              $328,510,656
- ---------------------------------------------------------------------------------------------------------------------------------

Floating Rate Demand Notes - 0.0%
- ---------------------------------------------------------------------------------------------------------------------------------
                           Allegheny County, PA, Hospital Development Authority Rev.
                           (Presbyterian University Hospital), "B", 3.22%, due 4/06/06, at
                           Identified Cost                                                            $   100,000    $    100,000

- ---------------------------------------------------------------------------------------------------------------------------------
  TOTAL INVESTMENTS (IDENTIFIED COST, $310,188,695)                                                                  $328,610,656
- ---------------------------------------------------------------------------------------------------------------------------------

Other Assets, Less Liabilities  - 1.9%                                                                                  6,346,043
- ---------------------------------------------------------------------------------------------------------------------------------
  NET ASSETS - 100.0%                                                                                                $334,956,699
- ---------------------------------------------------------------------------------------------------------------------------------


INTEREST RATE SWAPS

                             NOTIONAL PRINCIPAL                                                                    UNREALIZED
                                 AMOUNT OF               CASH FLOWS PAID                  CASH FLOWS              APPRECIATION
EXPIRATION      CURRENCY          CONTRACT                 BY THE FUND               RECEIVED BY THE FUND        (DEPRECIATION)
- -------------------------------------------------------------------------------------------------------------------------------

                                                                                                     
12/01/07           USD          $7,000,000               Fixed - 3 Year                Floating - 7 Day             $ 96,106
                                                    BMA Swap Index (2.795%)            BMA Swap Index
- -------------------------------------------------------------------------------------------------------------------------------
 6/16/16           USD           2,500,000               Fixed - 10 Year               Floating - 7 Day                6,440
                                                    BMA Swap Index (3.977%)            BMA Swap Index
- -------------------------------------------------------------------------------------------------------------------------------
 7/13/16           USD           2,500,000               Fixed - 10 Year               Floating - 7 Day               52,560
                                                    BMA Swap Index (3.742%)            BMA Swap Index
- -------------------------------------------------------------------------------------------------------------------------------
 6/22/18           USD           3,000,000               Fixed - 12 Year               Floating - 7 Day               57,092
                                                    BMA Swap Index (3.861%)            BMA Swap Index
- -------------------------------------------------------------------------------------------------------------------------------
 8/02/21           USD           3,000,000               Fixed - 15 Year               Floating - 7 Day               47,944
                                                    BMA Swap Index (4.011%)            BMA Swap Index
- -------------------------------------------------------------------------------------------------------------------------------
 9/13/26           USD           3,300,000             Floating - 3 Month               Fixed - 20 Year              (51,138)
                                                       LIBOR Swap Index           LIBOR Swap Index (5.363%)
- -------------------------------------------------------------------------------------------------------------------------------
                                                                                                                    $209,004
                                                                                                                    ========

At March 31, 2006, the fund had sufficient cash and/or securities to cover any
commitments under these derivative contracts.

SEE PORTFOLIO FOOTNOTES AND NOTES TO FINANCIAL STATEMENTS



PORTFOLIO OF INVESTMENTS - 3/31/06      MFS(R) PENNSYLVANIA MUNICIPAL BOND FUND

The Portfolio of Investments is a complete list of all securities owned by your
fund. It is categorized by broad-based asset classes.



Municipal Bonds - 97.4%
- ---------------------------------------------------------------------------------------------------------------------------------
                           ISSUER                                                                     SHARES/PAR      VALUE ($)
- ---------------------------------------------------------------------------------------------------------------------------------
                                                                                                            
Airport & Port             Allegheny County PA, Airport Rev. (Pittsburgh International Airport),
Revenue - 2.1%             FGIC, 6.125%, 2017                                                         $   500,000    $    533,645
                           Allegheny County PA, Airport Rev. (Pittsburgh International Airport),
                           MBIA, 5.75%, 2014                                                            1,000,000       1,085,610
                           Susquehanna Area Regional Airport, 5.375%, 2018                                200,000         204,344
                           Susquehanna Area Regional Airport, AMBAC, 5.375%, 2023                         500,000         525,155
                                                                                                                     ------------
                                                                                                                     $  2,348,754
- ---------------------------------------------------------------------------------------------------------------------------------
General Obligations -
General Purpose - 7.6%     Allegheny County, PA, Unrefunded Balance, "C53", FGIC, 5.3%, 2018          $   285,000    $    302,972
                           Allegheny County, PA, Unrefunded Balance, "C53", FGIC, 5.4%, 2019              290,000         309,198
                           Beaver County, PA, MBIA, 5.75%, 2006 (c)                                       250,000         252,823
                           Bedford County PA, "N", AMBAC, 5%, 2028                                      1,000,000       1,044,980
                           Commonwealth of Puerto Rico, ROLS, FGIC, 7.763%, 2015 (z)(v)                 1,000,000       1,224,780
                           Commonwealth of Puerto Rico, ROLS, XLCA, 7.693%, 2017 (z)(v)                 1,000,000       1,227,100
                           Erie County, PA, Convention Center, FGIC, 5%, 2025                             500,000         521,985
                           Erie County, PA, Convention Center, FGIC, 5%, 2026                             500,000         520,875
                           Luzerne County, PA, MBIA, 5.25%, 2025                                          500,000         528,825
                           North Huntingdon Township, PA, AMBAC, 5.25%, 2019                              500,000         534,775
                           Pennsylvania, 6%, 2010 (c)                                                   1,000,000       1,090,150
                           Pennsylvania, 6.25%, 2010                                                      300,000         329,613
                           Pennsylvania State Finance Authority Rev. (Penn Hills), "A", FGIC,
                           5.45%, 2010 (c)                                                                 85,000          91,266
                           Pennsylvania State Finance Authority Rev. (Penn Hills), "A", FGIC,
                           5.45%, 2019                                                                    415,000         441,058
                                                                                                                     ------------
                                                                                                                     $  8,420,400
- ---------------------------------------------------------------------------------------------------------------------------------
General Obligations -
Improvement - 0.5%         Pittsburgh, PA, FGIC, 5.75%, 2009 (c)                                      $   500,000    $    533,320
- ---------------------------------------------------------------------------------------------------------------------------------
General Obligations -
Schools - 21.6%            Allegheny Valley, PA, School District, "A", MBIA, 5%, 2028                 $ 1,000,000    $  1,041,700
                           Ambridge, PA, Area School District, MBIA, 5%, 2034                             750,000         778,028
                           Butler, PA, School District, FGIC, 5.375%, 2018                                500,000         519,980
                           Chambersburg, PA, School District, FSA, 5%, 2011 (c)                           500,000         529,950
                           Chester County, PA, School Authority (School Intermediate Unit
                           Project), "N", AMBAC, 5%, 2025                                                 750,000         785,190
                           Downingtown, PA, School District, AMBAC, 5.65%, 2008 (c)                       500,000         523,165
                           Exeter Township, PA, School District, FGIC, 5%, 2025                         1,000,000       1,042,350
                           Garnet Valley, PA, School District, FGIC, 5.5%, 2015                           750,000         813,540
                           Gateway, PA, Allegheny School District, FGIC, 5.2%, 2023                     1,000,000       1,063,960
                           Gateway, PA, Allegheny School District, FGIC, 5%, 2032                       1,890,000       1,955,848
                           North Allegheny, PA, School District, FGIC, 5.05%, 2022                        590,000         611,700
                           North Pocono, PA, School District, FGIC, 5%, 2013 (c)                          500,000         533,165
                           North Schuylkill, PA, School District, FGIC, 5%, 2028                          650,000         670,319
                           Palmyra, PA, School District, FGIC, 5.375%, 2016                               820,000         882,976
                           Pennridge, PA, School District, MBIA, 5%, 2020                                 500,000         523,300
                           Pennridge, PA, School District, MBIA, 5%, 2021                                 500,000         522,695
                           Pennsylvania Public School Building (Garnet Valley School District),
                           AMBAC, 5.5%, 2011 (c)                                                        1,005,000       1,083,249
                           Perkiomen Valley, PA, School District, "A", FSA, 5.25%, 2028                 1,000,000       1,058,250
                           Perkiomen Valley, PA, School District, FSA, 5%, 2011 (c)                       280,000         295,926
                           Perkiomen Valley, PA, School District, FSA, 5%, 2013 (c)                     1,000,000       1,066,720
                           Perkiomen Valley, PA, School District, FSA, 5%, 2019                           220,000         230,228
                           Perkiomen Valley, PA, School District, FSA, 5%, 2025                         1,260,000       1,309,669
                           Philadelphia, PA, School District, AMBAC, 5.375%, 2007 (c)                     500,000         508,790
                           Philadelphia, PA, School District, FSA, 5.75%, 2011 (c)                        500,000         544,400
                           Philadelphia, PA, School District, MBIA, 6%, 2010 (c)                          500,000         541,065
                           South Park, PA, School District, FGIC, 5%, 2019                                750,000         778,673
                           Southeastern Area, PA, Special Schools Authority Rev., 0%, 2007                360,000         341,024
                           State Public School Building Authority, Pennsylvania School (Colonial
                           Intermediate Unit 20), FGIC, 5%, 2030                                          500,000         521,150
                           State Public School Building Authority, Pennsylvania School (Lease
                           Philadelphia School District), FSA, 5.25%, 2024                              1,000,000       1,063,620
                           State Public School Building Authority, Pennsylvania School
                           (Tuscarora School District), FSA, 5%, 2013 (c)                               1,000,000       1,066,720
                           State Public School Building Authority, Pennsylvania School
                           (Wattsburg School District), MBIA, 0%, 2027                                  2,150,000         788,233
                                                                                                                     ------------
                                                                                                                     $ 23,995,583
- ---------------------------------------------------------------------------------------------------------------------------------
Healthcare Revenue -       Allegheny County, PA, Hospital Development Authority Rev. (South
Hospitals - 11.5%          Hills Health System), MBIA, 5.8%, 2016                                     $   500,000    $    510,695
                           Allegheny County, PA, Hospital Development Authority Rev. (South
                           Hills Health Systems), "B", 6.75%, 2025                                        555,000         583,066
                           Allegheny County, PA, Hospital Development Authority Rev. (UPMC
                           Health Systems), MBIA, 5%, 2018                                                500,000         516,855
                           Allegheny County, PA, Hospital Development Authority Rev. (West Penn
                           Allegheny Health), 9.25%, 2030                                                 150,000         179,093
                           Allegheny County, PA, Hospital Development Authority Rev. (West Penn
                           Allegheny Health), "B", 9.25%, 2022                                             50,000          59,698
                           Blair County, PA, Hospital Authority Rev. (Altoona), AMBAC, 5.5%, 2008         470,000         488,194
                           Erie County, PA, Hospital Authority Rev. (Hamot Health Foundation),
                           AMBAC, 5.25%, 2017                                                             675,000         720,104
                           Lancaster County, PA, Hospital Authority Rev., 5.5%, 2026                      500,000         527,435
                           Lebanon County, PA, Health Facilities Authority Rev. (Good Samaritan
                           Hospital), 5%, 2018                                                            200,000         202,516
                           Lebanon County, PA, Health Facilities Authority Rev. (Good Samaritan
                           Hospital), 6%, 2035                                                            350,000         373,629
                           Lehigh County, PA, General Purpose Authority (Good Shepherd Group),
                           "A", 5.625%, 2034                                                              350,000         368,074
                           Lehigh County, PA, General Purpose Authority (Lehigh Valley
                           Hospital), 5.25%, 2032                                                         600,000         616,308
                           Lehigh County, PA, General Purpose Authority (Lehigh Valley
                           Hospital), MBIA, 7%, 2016                                                      250,000         292,598
                           Lehigh County, PA, General Purpose Authority (St. Luke's Bethlehem
                           Hospital), 5.375%, 2033                                                        600,000         617,394
                           Lehigh County, PA, Hospital Rev. (Lehigh Valley Hospital), FSA,
                           5.25%, 2019                                                                    500,000         530,630
                           Lycoming County, PA, Authority Hospital Rev. (Williamsport Hospital
                           Obligation Group), CONNIE LEE, 5.375%, 2010                                    750,000         766,560
                           Monroe County, PA, Hospital Authority Rev. (Pocono Medical Center),
                           6%, 2043                                                                       750,000         790,200
                           Mount Lebanon, PA, Hospital Authority Rev. (St. Clair Memorial
                           Hospital), 5.625%, 2032                                                        400,000         416,484
                           Pennsylvania Higher Educational Facilities Authority Rev. (UPMC
                           Health), 6.25%, 2018                                                           100,000         110,013
                           Pennsylvania Higher Educational Facilities Authority Rev. (UPMC
                           Health), 6%, 2031                                                              650,000         706,043
                           Philadelphia, PA, Health & Educational Facilities Rev. (Jeane
                           Health), 6.6%, 2010                                                            140,000         148,058
                           Philadelphia, PA, Health & Educational Facilities Rev. (Temple
                           University), 6.625%, 2023                                                      250,000         250,925
                           Sayre, PA, Health Care Facilities Authority Rev. (Guthrie Health),
                           5.875%, 2031                                                                   500,000         531,155
                           Sayre, PA, Health Care Facilities Authority Rev. (Latrobe Hospital),
                           AMBAC, 5.25%, 2015                                                             585,000         630,004
                           South Central, PA, General Authority Rev., 5.625%, 2011 (c)                    490,000         535,923
                           South Central, PA, General Authority Rev.. Wellspan Health, ETM,
                           5.625%, 2026 (c)                                                               110,000         119,051
                           St. Mary's Hospital Authority, PA, Health Systems Rev. (Catholic
                           Health East), "B", 5.375%, 2034                                                750,000         788,183
                           West Shore, PA, Hospital Authority (Holy Spirit Hospital), 6.25%, 2032         350,000         372,278
                                                                                                                     ------------
                                                                                                                     $ 12,751,166
- ---------------------------------------------------------------------------------------------------------------------------------
Healthcare Revenue -       Bucks County, PA, Industrial Development Authority Rev. (Ann's
Long Term Care - 1.2%      Choice, Inc.), 6.125%, 2025                                                $   250,000    $    255,295
                           Clarion, PA, Industrial Development Authority Rev. (Beverly
                           Enterprises, Inc.), 7.5%, 2012                                                 150,000         152,130
                           Cumberland County, PA, Municipal Authority Rev. (Wesley), "A",
                           7.25%, 2013 (c)                                                                110,000         131,768
                           Cumberland County, PA, Municipal Authority Rev. (Wesley), "A",
                           7.25%, 2035                                                                     40,000          42,718
                           Lancaster County, PA, Hospital Authority Rev. (Willow Valley
                           Retirement Project), 5.875%, 2031                                              500,000         521,035
                           Montgomery County, PA, Industrial Development Authority Rev.
                           (Whitemarsh Continuing Care), 6.25%, 2035                                      250,000         262,675
                                                                                                                     ------------
                                                                                                                     $  1,365,621
- ---------------------------------------------------------------------------------------------------------------------------------
Human Services - 0.1%      Montgomery County, PA, Industrial Development Authority (Wordsworth
                           Academy), 8%, 2024                                                         $   150,000    $    150,596
- ---------------------------------------------------------------------------------------------------------------------------------
Industrial Revenue -       New Morgan, PA, Industrial Development Authority, Solid Waste
Environmental Services -   Disposal Rev. (New Morgan Landfill Co., Inc./Browning Ferris, Inc.),
1.0%                       6.5%, 2019                                                                 $   530,000    $    532,767
                           Westmoreland County, PA, Industrial Development Corp. (Waste
                           Management), LOC, 5.1%, 2018                                                   500,000         512,250
                                                                                                                     ------------
                                                                                                                     $  1,045,017
- ---------------------------------------------------------------------------------------------------------------------------------
Industrial Revenue -       Bucks County, PA, Industrial Development Authority Rev. (USX Corp.),
Other - 1.7%               5.4%, 2017                                                                 $   300,000    $    318,051
                           Pennsylvania Economic Development Financing Authority Rev. (Amtrak),
                           6.125%, 2021                                                                   150,000         158,846
                           Pennsylvania Economic Development Financing Authority, Solid Waste
                           Disposal Rev. (Procter & Gamble), 5.375%, 2031                               1,000,000       1,098,410
                           Virgin Islands Public Finance Authority, Refinery Facilities Rev.
                           (Hovensa Refinery), 5.875%, 2022                                               270,000         284,720
                                                                                                                     ------------
                                                                                                                     $  1,860,027
- ---------------------------------------------------------------------------------------------------------------------------------
Industrial Revenue -       Erie County, PA, Industrial Development Authority, Pollution Control
Paper - 0.6%               (International Paper Co.), "A", 5.3%, 2012                                 $   650,000    $    674,960
- ---------------------------------------------------------------------------------------------------------------------------------
Miscellaneous Revenue -
Other - 0.1%               Gallery Certificate Trust, PA, Parking Rev., FSA, 4.5%, 2013               $   150,000    $    148,077
- ---------------------------------------------------------------------------------------------------------------------------------
Parking - 1.9%             Philadelphia, PA, Public Parking Authority Rev., FSA, 5.625%, 2015         $ 1,000,000    $  1,065,880
                           Pittsburgh, PA, Public Parking Authority Rev., "A", FGIC, 5%, 2025             500,000         517,790
                           Pittsburgh, PA, Public Parking Authority Rev., AMBAC, 6%, 2020                 500,000         544,495
                                                                                                                     ------------
                                                                                                                     $  2,128,165
- ---------------------------------------------------------------------------------------------------------------------------------
Sales & Excise Tax         Pittsburgh & Allegheny County, PA, Sales Tax Rev. (Public Auditorium
Revenue - 0.5%             Hotel Room), AMBAC, 5.25%, 2017                                            $   500,000    $    525,530
- ---------------------------------------------------------------------------------------------------------------------------------
Single Family Housing -    Allegheny County, PA, Residential Financing Authority, Single Family
Local - 0.5%               Mortgage Rev., "RR", 4.75%, 2025                                           $   375,000    $    366,574
                           Pittsburgh, PA, Urban Development Authority Mortgage Rev., 5.5%, 2010          225,000         226,942
                                                                                                                     ------------
                                                                                                                     $    593,516
- ---------------------------------------------------------------------------------------------------------------------------------
Single Family Housing -    Pennsylvania Housing Finance Agency, Single Family Mortgage Rev., 5%,
State - 4.1%               2014                                                                       $   500,000    $    507,620
                           Pennsylvania Housing Finance Agency, Single Family Mortgage Rev.,
                           5.1%, 2020                                                                   1,405,000       1,417,420
                           Pennsylvania Housing Finance Agency, Single Family Mortgage Rev.,
                           5.25%, 2021                                                                    750,000         754,163
                           Pennsylvania Housing Finance Agency, Single Family Mortgage Rev.,
                           5.25%, 2033                                                                    555,000         563,331
                           Pennsylvania Housing Finance Agency, Single Family Mortgage Rev., 5%,
                           2034                                                                           835,000         851,141
                           Pennsylvania Housing Finance Agency, Single Family Mortgage Rev.,
                           "A", 4.875%, 2026                                                              500,000         498,985
                                                                                                                     ------------
                                                                                                                     $  4,592,660
- ---------------------------------------------------------------------------------------------------------------------------------
Solid Waste Revenue - 0.3% Delaware County, PA, Industrial Development Authority, Resource
                           Recovery Facilities Rev. (American Ref-Fuel Co.), "A", 6.2%, 2019          $   300,000    $    313,554
- ---------------------------------------------------------------------------------------------------------------------------------
State & Local Agencies -   Delaware Valley, PA, Regional Finance Authority, RITES, AMBAC,
3.7%                       7.624%, 2018 (v)                                                           $   500,000    $    591,750
                           Northumberland County, PA (Country Careers & Arts Center), 6.65%, 2020         245,000         250,030
                           Pennsylvania Industrial Development Authority, Economic Development,
                           AMBAC, 7%, 2007                                                                300,000         307,437
                           Philadelphia, PA, Industrial Development Authority, FSA, 5.125%, 2026        1,000,000       1,045,700
                           Philadelphia, PA, Industrial Development Authority, FSA, 5.25%, 2030           750,000         780,060
                           Philadelphia, PA, Industrial Development Authority, MBIA, 5.35%, 2012          500,000         517,160
                           Puerto Rico Public Finance Corp., RITES, AMBAC, 6.826%, 2013 (z)(v)            500,000         591,270
                                                                                                                     ------------
                                                                                                                     $  4,083,407
- ---------------------------------------------------------------------------------------------------------------------------------
Student Loan Revenue -
1.4%                       Pennsylvania Higher Education, Capital Acquistion Rev., MBIA, 5%, 2026     $ 1,500,000    $  1,546,245
- ---------------------------------------------------------------------------------------------------------------------------------
Tax - Other - 0.6%         Pittsburgh & Allegheny County, PA, Sales Tax Rev. (Public Auditorium
                           Hotel Room), AMBAC, 5.25%, 2013                                            $   500,000    $    526,975
                           Virgin Islands Public Finance Authority Rev., "A", 5.25%, 2024                 135,000         140,243
                                                                                                                     ------------
                                                                                                                     $    667,218
- ---------------------------------------------------------------------------------------------------------------------------------
Tax Assessment - 0.3%      Allegheny County, PA, Redevelopment Authority Rev. (Pittsburgh
                           Mills), 5.6%, 2023                                                         $   350,000    $    366,051
- ---------------------------------------------------------------------------------------------------------------------------------
Tobacco - 0.4%             Children's Trust Fund, Tobacco Settlement Rev., Puerto Rico,
                           5.375%, 2033                                                               $   320,000    $    328,035
                           Virgin Islands Tobacco Settlement Financing Corp., 5%, 2021                    150,000         151,137
                                                                                                                     ------------
                                                                                                                     $    479,172
- ---------------------------------------------------------------------------------------------------------------------------------
Toll Roads - 0.3%          Pennsylvania Turnpike Commission, 5.5%, 2015                               $   250,000    $    268,130
- ---------------------------------------------------------------------------------------------------------------------------------
Transportation - Special   Allegheny County, PA, Port Authority Special Rev., MBIA,
Tax - 5.8%                 6.25%, 2009 (c)                                                            $   500,000    $    540,300
                           Commonwealth of Puerto Rico Highway & Transportation Authority, "Y",
                           5.5%, 2036                                                                   1,020,000       1,090,778
                           Commonwealth of Puerto Rico Highway & Transportation Authority, ROLS,
                           MBIA, 7.763%, 2020 (z)(v)                                                    1,500,000       1,911,120
                           Pennsylvania Turnpike Commission, MBIA, 5%, 2024                             1,775,000       1,854,041
                           Southeastern Pennsylvania Transportation Authority, Special Rev.,
                           FGIC, 5.25%, 2013                                                              500,000         525,075
                           Southeastern Pennsylvania Transportation Authority, Special Rev.,
                           FGIC, 5.375%, 2017                                                             500,000         517,640
                                                                                                                     ------------
                                                                                                                     $  6,438,954
- ---------------------------------------------------------------------------------------------------------------------------------
Universities - Colleges -
13.7%                      Allegheny County, PA, (Chatham College), 5.95%, 2032                       $   335,000    $    354,239
                           Allegheny County, PA, Higher Education Building Authority Rev.
                           (Duquesne University), "A", XLCA, 5%, 2024                                   1,000,000       1,051,000
                           Cumberland County, PA, Municipal Authority (Dickinson College),
                           AMBAC, 5.55%, 2017                                                             535,000         569,780
                           Lycoming County, PA, (College of Technology), AMBAC, 5.25%, 2032               750,000         781,598
                           Pennsylvania Higher Educational Facilities Authority Rev. (Clarion
                           University Foundation), XLCA, 5%, 2023                                       1,000,000       1,044,350
                           Pennsylvania Higher Educational Facilities Authority Rev. (Drexel
                           University), 5.2%, 2032                                                        500,000         523,470
                           Pennsylvania Higher Educational Facilities Authority Rev. (Drexel
                           University), MBIA, 5%, 2028                                                    750,000         782,768
                           Pennsylvania Higher Educational Facilities Authority Rev.
                           (Independent Colleges & Universities), FGIC, 5%, 2024                        1,000,000       1,046,590
                           Pennsylvania Higher Educational Facilities Authority Rev. (Marywood
                           University), MBIA, 5.5%, 2018 (c)                                              300,000         320,967
                           Pennsylvania Higher Educational Facilities Authority Rev. (Mercyhurst
                           College), "B", 5%, 2023                                                        500,000         503,900
                           Pennsylvania Higher Educational Facilities Authority Rev. (Widener
                           University), 5.375%, 2029                                                      300,000         313,653
                           Pennsylvania Higher Educational Facilities Authority Rev. (Widener
                           University), 5%, 2031                                                          300,000         303,084
                           Pennsylvania Public School Building Authority (Delaware County
                           College), MBIA, 5.75%, 2016                                                    500,000         539,675
                           Pennsylvania State Higher Educational Facilities (Allegheny College),
                           4.75%, 2031                                                                    500,000         492,060
                           Pennsylvania State Higher Educational Facilities (Philadelphia
                           University), 5.5%, 2020                                                        500,000         520,090
                           Pennsylvania State Higher Educational Facilities Authority, "C",
                           4.5%, 2030                                                                   1,000,000         972,570
                           Pennsylvania State Public School Building Authority, Montgomery
                           County Community College, AMBAC, 5%, 2025                                      500,000         524,515
                           Pennsylvania State University, 5%, 2029                                      1,400,000       1,460,788
                           Pennsylvania State University, "A", 5%, 2029                                 1,000,000       1,039,600
                           State Public School Building Authority, PA, Jefferson County (Dubois
                           Technical School), FGIC, 5%, 2026                                            1,000,000       1,043,500
                           Union County, PA, Higher Educational Facilities Financing Authority,
                           University Rev. (Bucknell University), 5.25%, 2021                           1,000,000       1,061,160
                                                                                                                     ------------
                                                                                                                     $ 15,249,357
- ---------------------------------------------------------------------------------------------------------------------------------
Universities -             Pennsylvania Economic Development Financing Authority (Germantown
Dormitories - 0.6%         Friends School Project), 5.35%, 2031                                       $   600,000    $    629,550
- ---------------------------------------------------------------------------------------------------------------------------------
Utilities -                Carbon County, PA, Industrial Development Authority Rev. (Panther
Cogeneration - 0.3%        Creek Partners), 6.65%, 2010                                               $   110,000    $    116,091
                           Pennsylvania Economic Development Financing Authority Rev., Resources
                           Recovery Rev. (Colver), "G", 5.125%, 2015                                      100,000          97,694
                           Pennsylvania Economic Development Financing Authority Rev., Resources
                           Recovery Rev. (Northampton Generating), 6.4%, 2009                             150,000         149,118
                                                                                                                     ------------
                                                                                                                     $    362,903
- ---------------------------------------------------------------------------------------------------------------------------------
Utilities - Investor       Lehigh County, PA, Industrial Development Authority Pollution Control
Owned - 1.1%               Rev. (PPL Electric Utilities Corp.), "A", FGIC, 4.7%, 2029                 $   500,000    $    497,170
                           Lehigh County, PA, Industrial Development Authority Rev. (PPL
                           Electric Utilities Corp.), FGIC, 4.75%, 2027                                   750,000         752,648
                                                                                                                     ------------
                                                                                                                     $  1,249,818
- ---------------------------------------------------------------------------------------------------------------------------------
Utilities - Municipal
Owned - 4.6%               Guam Power Authority Rev., RITES, AMBAC, 6.565%, 2014 (z)(v)               $ 2,170,000    $  2,419,159
                           Philadelphia, PA, Gas Works Rev. (1998 General Ordinance), FSA,
                           5.25%, 2020                                                                  1,000,000       1,059,720
                           Philadelphia, PA, Gas Works Rev., FSA, 5.5%, 2009 (c)                        1,000,000       1,064,870
                           Philadelphia, PA, Gas Works Rev., FSA, 5.5%, 2011 (c)                          500,000         541,330
                                                                                                                     ------------
                                                                                                                     $  5,085,079
- ---------------------------------------------------------------------------------------------------------------------------------
Water & Sewer Utility
Revenue - 9.3%             Allegheny County, PA, Sewer Rev., MBIA, 5.75%, 2010 (c)                    $   750,000    $    814,440
                           Bucks County, PA, (Suburban Water Co.), FGIC, 5.55%, 2032                    1,000,000       1,054,940
                           Delaware County, PA, Water Quality Control Authority, Sewer Rev.,
                           FGIC, 5%, 2018                                                                 750,000         778,380
                           Fairview Township, PA, Sewer Rev., FGIC, 5.05%, 2018                           750,000         782,115
                           Johnstown, PA, Redevelopment Authority, Sewer Rev., "A", FSA, 5%, 2034       1,500,000       1,554,870
                           Lancaster County, PA, Water & Sewer Authority Rev., MBIA, 5%, 2028             440,000         457,318
                           Unity Township, PA, Municipal Authority Sewer Rev., FSA, 5%, 2034            1,660,000       1,722,482
                           University Area Joint Authority, Sewer Rev., MBIA, 5%, 2023                  1,500,000       1,552,995
                           Virgin Islands Water & Power Authority Rev., ASST GTY, 5.3%, 2018              500,000         521,065
                           Westmoreland County, PA, Municipal Authority Services Rev., FSA,
                           5.25%, 2026                                                                  1,000,000       1,070,922
                                                                                                                     ------------
                                                                                                                     $ 10,309,527
- ---------------------------------------------------------------------------------------------------------------------------------
  TOTAL MUNICIPAL BONDS (IDENTIFIED COST, $104,246,535)                                                              $108,182,357
- ---------------------------------------------------------------------------------------------------------------------------------

Floating Rate Demand Notes - 0.8%
- ---------------------------------------------------------------------------------------------------------------------------------
                           Allegheny County, PA, Hospital Development Authority Rev.
                           (Presbyterian University Hospital), "B", 3.22%, due 4/06/06                $   400,000    $    400,000
                           Allegheny County, PA, Hospital Development Authority Rev.
                           (Presbyterian University Hospital), "D", 3.22%, due 4/06/06                    500,000         500,000

- ---------------------------------------------------------------------------------------------------------------------------------
  TOTAL FLOATING RATE DEMAND NOTES, AT IDENTIFIED COST                                                               $    900,000
- ---------------------------------------------------------------------------------------------------------------------------------
  TOTAL INVESTMENTS (IDENTIFIED COST, $105,146,535)                                                                  $109,082,357
- ---------------------------------------------------------------------------------------------------------------------------------

Other Assets, Less Liabilities - 1.8%                                                                                   1,989,195
- ---------------------------------------------------------------------------------------------------------------------------------
  NET ASSETS - 100.0%                                                                                                $111,071,552
- ---------------------------------------------------------------------------------------------------------------------------------


INTEREST RATE SWAPS

                             NOTIONAL PRINCIPAL                                                                    UNREALIZED
                                 AMOUNT OF               CASH FLOWS PAID                  CASH FLOWS              APPRECIATION
EXPIRATION      CURRENCY          CONTRACT                 BY THE FUND               RECEIVED BY THE FUND        (DEPRECIATION)
- -------------------------------------------------------------------------------------------------------------------------------

                                                                                                     
12/01/07           USD          $2,000,000               Fixed - 3 Year                Floating - 7 Day             $ 27,467
                                                     BMA Swap Index (2.795%)            BMA Swap Index
- -------------------------------------------------------------------------------------------------------------------------------
 6/06/16           USD           4,000,000               Fixed - 10 Year               Floating - 7 Day               21,206
                                                     BMA Swap Index (3.938%)            BMA Swap Index
- -------------------------------------------------------------------------------------------------------------------------------
 8/30/16           USD           2,000,000               Fixed - 10 Year               Floating - 7 Day               15,359
                                                     BMA Swap Index (3.926%)            BMA Swap Index
- -------------------------------------------------------------------------------------------------------------------------------
 6/15/18           USD           2,000,000               Fixed - 12 Year               Floating - 7 Day               10,528
                                                     BMA Swap Index (4.019%)            BMA Swap Index
- -------------------------------------------------------------------------------------------------------------------------------
 6/22/18           USD           2,000,000               Fixed - 12 Year               Floating - 7 Day               38,062
                                                     BMA Swap Index (3.861%)            BMA Swap Index
- -------------------------------------------------------------------------------------------------------------------------------
 8/02/21           USD           1,000,000               Fixed - 15 Year               Floating - 7 Day               15,981
                                                     BMA Swap Index (4.011%)            BMA Swap Index
- -------------------------------------------------------------------------------------------------------------------------------
 9/13/26           USD           1,100,000             Floating - 3 Month               Fixed - 20 Year              (17,046)
                                                        LIBOR Swap Index           LIBOR Swap Index (5.363%)
- -------------------------------------------------------------------------------------------------------------------------------
                                                                                                                    $111,557
                                                                                                                    ========

At March 31, 2006, the fund had sufficient cash and/or securities to cover any
commitments under these derivative contracts.

SEE PORTFOLIO FOOTNOTES AND NOTES TO FINANCIAL STATEMENTS



PORTFOLIO OF INVESTMENTS - 3/31/06    MFS(R) SOUTH CAROLINA MUNICIPAL BOND FUND

The Portfolio of Investments is a complete list of all securities owned by your
fund. It is categorized by broad-based asset classes.



Municipal Bonds - 97.7%
- ---------------------------------------------------------------------------------------------------------------------------------
                           ISSUER                                                                     SHARES/PAR      VALUE ($)
- ---------------------------------------------------------------------------------------------------------------------------------
                                                                                                            
Airport & Port
Revenue - 3.1%             Horry County, SC, "A", FSA, 5.7%, 2027                                     $ 2,250,000    $  2,280,260
                           Richland Lexington, SC, Airport Rev. (Columbia Airport), "A", FSA,
                           5%, 2026                                                                     1,000,000       1,025,990
                           Richland Lexington, SC, Airport Rev. (Columbia Airport), FSA,
                           5.125%, 2025                                                                 1,500,000       1,549,485
                                                                                                                     ------------
                                                                                                                     $  4,855,735
- ---------------------------------------------------------------------------------------------------------------------------------
Chemicals - 0.5%           York County, SC, Industrial Rev., Exempt Facilities Hoechst Celanese,
                           5.7%, 2024                                                                 $   850,000    $    831,530
- ---------------------------------------------------------------------------------------------------------------------------------
General Obligations -
General Purpose - 6.2%     Commonwealth of Puerto Rico, RITES, ETM, 7.099%, 2018 (z)(c)(v)            $ 2,000,000    $  2,310,400
                           Commonwealth of Puerto Rico, RITES, ETM, 7.099%, 2019 (z)(c)(v)              1,750,000       2,018,590
                           Commonwealth of Puerto Rico, RITES, MBIA, 7.599%, 2020 (z)(v)                2,000,000       2,308,960
                           Hilton Head Island, SC, Rev., MBIA, 5.125%, 2022                             1,000,000       1,059,720
                           Horry County, SC, Hospital Fee Special Obligation, 6%, 2015                    915,000         994,953
                           Richard Lexington Riverbanks, SC, Parks District, FGIC, 5.8%, 2018           1,000,000       1,065,730
                                                                                                                     ------------
                                                                                                                     $  9,758,353
- ---------------------------------------------------------------------------------------------------------------------------------
General Obligations -
Improvement - 1.3%         Beaufort County, SC, FGIC, 5.25%, 2018                                     $ 1,000,000    $  1,047,120
                           Commonwealth of Puerto Rico, RITES, FSA, 8.108%, 2016 (z)(v)                   850,000         991,678
                                                                                                                     ------------
                                                                                                                     $  2,038,798
- ---------------------------------------------------------------------------------------------------------------------------------
General Obligations -
Schools - 10.1%            Anderson County, SC, School District, "B", 5.5%, 2018                      $ 1,465,000    $  1,560,606
                           Berkeley County, SC, School District, 5%, 2008 (c)                           2,000,000       2,091,720
                           Chesterfield County, SC, School District, FSA, 5%, 2023                      3,000,000       3,127,440
                           Darlington County, SC, School District, FSA, 5%, 2027                        2,770,000       2,905,813
                           Jasper County, SC, School District, MBIA, 5.25%, 2024                        1,000,000       1,071,930
                           Orangeburg County, SC, Consolidated School District, FSA, 5.25%, 2020        1,065,000       1,133,213
                           Orangeburg County, SC, Consolidated School District, FSA, 5.375%, 2022       2,050,000       2,204,447
                           Richland County, SC, School District, 5.1%, 2021                             1,750,000       1,844,868
                                                                                                                     ------------
                                                                                                                     $ 15,940,037
- ---------------------------------------------------------------------------------------------------------------------------------
Healthcare Revenue -       Charleston County, SC, Hospital Facilities Rev. (Medical Society
Hospitals - 20.6%          Health), MBIA, ETM, 5%, 2022 (c)                                           $ 2,450,000    $  2,465,141
                           Florence County, SC, Hospital Rev. (McLeod Regional Medical Center),
                           "A", FSA, 5%, 2031                                                           2,000,000       2,071,840
                           Florence County, SC, Hospital Rev. (McLeod Regional Medical Center),
                           "A", FSA, 5.25%, 2034                                                        2,000,000       2,105,640
                           Greenville, SC, Hospital Systems, Hospital Facilities Rev., 6%, 2020         3,400,000       3,915,304
                           Greenwood County, SC, Hospital Facilities Rev. (Self Memorial
                           Hospital), 5.5%, 2021                                                        1,000,000       1,034,880
                           Lexington County, SC, Health Services District, Inc., 5.5%, 2032               250,000         263,640
                           Lexington County, SC, Health Services District, Inc., 5.5%, 2037               250,000         262,783
                           Lexington County, SC, Health Services District, Inc., Hospital Rev.,
                           Refunding & Improvement, 5.5%, 2032                                          1,000,000       1,051,740
                           Lexington County, SC, Health Services District, Inc., Hospital Rev.,
                           Refunding & Improvement, FSA, 5.125%, 2021                                   1,500,000       1,562,190
                           South Carolina Jobs & Economic Development Authority Rev. (Bon
                           Secours Health Systems, Inc.), "A", 5.625%, 2030                             1,250,000       1,306,325
                           South Carolina Jobs & Economic Development Authority, Hospital
                           Facilities Rev. (Anderson Area Medical Center, Inc.), MBIA, 5.25%, 2015      1,750,000       1,788,045
                           South Carolina Jobs & Economic Development Authority, Hospital
                           Facilities Rev. (Georgetown Memorial Hospital), AMBAC, 5%, 2023              1,000,000       1,022,060
                           South Carolina Jobs & Economic Development Authority, Hospital
                           Facilities Rev. (Georgetown Memorial Hospital), ASST GTY, 5.25%, 2021        1,500,000       1,563,435
                           South Carolina Jobs & Economic Development Authority, Hospital
                           Facilities Rev. (Palmetto Health Alliance), 6.25%, 2031                        750,000         808,260
                           South Carolina Jobs & Economic Development Authority, Hospital
                           Facilties Rev. (Georgetown Memorial Hospital), AMBAC, 6%, 2014               1,000,000       1,084,690
                           South Carolina Jobs & Economic Development Authority, Hospital
                           Facilties Rev. (Tuomey), CIFG, 5%, 2030                                      1,000,000       1,033,550
                           South Carolina Medical University, Hospital Facilities Rev., "A",
                           MBIA, 5%, 2031                                                               3,100,000       3,189,435
                           Spartanburg County, SC, Health Service Rev., AMBAC, 5.3%, 2020               2,500,000       2,527,275
                           Spartanburg County, SC, Health Service Rev., AMBAC, 5.3%, 2025               1,000,000       1,010,910
                           Spartanburg County, SC, Health Service Rev., FSA, 5.25%, 2032                2,250,000       2,345,423
                                                                                                                     ------------
                                                                                                                     $ 32,412,566
- ---------------------------------------------------------------------------------------------------------------------------------
Healthcare Revenue -
Long Term Care - 1.2%      Greenville County, SC, Hospital Rev. (Chestnut Hill), "A", 8%, 2015        $ 1,420,000    $  1,421,775
                           South Carolina Jobs & Economic Development Authority, Residential
                           Care Facilities (Episcopal Home), "A", 6.375%, 2032                            400,000         408,440
                                                                                                                     ------------
                                                                                                                     $  1,830,215
- ---------------------------------------------------------------------------------------------------------------------------------
Industrial Revenue -       Calhoun County, SC, Solid Waste Disposal Facilities Rev. (Carolina
Other - 1.0%               Eastman Co.), ETM, 6.75%, 2017 (c)                                         $ 1,000,000    $  1,194,470
                           Virgin Islands Public Finance Authority, Refinery Facilities Rev.
                           (Hovensa Refinery), 5.875%, 2022                                               385,000         405,990
                                                                                                                     ------------
                                                                                                                     $  1,600,460
- ---------------------------------------------------------------------------------------------------------------------------------
Industrial Revenue -       Darlington County, SC, Industrial Development Rev. (Sonoco Products
Paper - 2.1%               Co.), 6.125%, 2025                                                         $ 1,500,000    $  1,521,555
                           Florence County, SC, Industrial Development Rev. (Stone Container
                           Corp.), 7.375%, 2007                                                           225,000         226,118
                           Georgetown County, SC, Environmental Improvement Rev., International
                           Paper, "A", 5.3%, 2028                                                         500,000         483,010
                           Richland County, SC, Environmental Improvement Rev., International
                           Paper, "A", 6.1%, 2023                                                       1,000,000       1,070,680
                                                                                                                     ------------
                                                                                                                     $  3,301,363
- ---------------------------------------------------------------------------------------------------------------------------------
Miscellaneous Revenue -
Entertainment &
Tourism - 1.5%             Myrtle Beach, SC, Hospitality Fee Rev., "A", FGIC, 5%, 2036                $   510,000    $    527,921
                           South Carolina Jobs & Economic Development Authority (Myrtle Beach
                           Convention), "B", MBIA, 5.125%, 2018                                           570,000         593,245
                           South Carolina Jobs & Economic Development Authority (Myrtle Beach
                           Convention), "B", MBIA, 5.125%, 2019                                           595,000         624,179
                           South Carolina Jobs & Economic Development Authority (Myrtle Beach
                           Convention), "B", MBIA, 5.125%, 2020                                           630,000         660,026
                                                                                                                     ------------
                                                                                                                     $  2,405,371
- ---------------------------------------------------------------------------------------------------------------------------------
Multi-Family Housing       North Charleston SC, Housing Authority Rev. (Horizon Village), "A",
Revenue - 1.4%             FHA, 5%, 2038                                                              $ 1,000,000    $    978,110
                           North Charleston SC, Housing Authority Rev. (Horizon Village), "A",
                           FHA, 5.1%, 2041                                                              1,210,000       1,182,787
                                                                                                                     ------------
                                                                                                                     $  2,160,897
- ---------------------------------------------------------------------------------------------------------------------------------
Single Family Housing -    South Carolina Housing, Finance & Development Authority Mortgage Rev,
State - 2.0%               "A-2", FSA, 5.2%, 2035                                                     $ 1,000,000    $  1,010,730
                           South Carolina Housing, Finance & Development Authority Rev., "A-2",
                           FSA, 6%, 2020                                                                  395,000         401,423
                           South Carolina Housing, Finance & Development Authority Rev., "A-2",
                           FSA, 5.35%, 2024                                                             1,715,000       1,744,687
                                                                                                                     ------------
                                                                                                                     $  3,156,840
- ---------------------------------------------------------------------------------------------------------------------------------
State & Agency -
Other - 1.1%               Greenville County, SC (University Center), "A", AMBAC, 5.25%, 2019         $ 1,000,000    $  1,054,470
                           South Carolina Water Resources Authority Rev. (Local Government
                           Program), "A", 7.25%, 2020                                                     605,000         606,198
                                                                                                                     ------------
                                                                                                                     $  1,660,668
- ---------------------------------------------------------------------------------------------------------------------------------
State & Local Agencies -   North Charleston, SC, Municipal Golf Course Mortgage Rev.,
3.9%                       5.5%, 2009 (c)                                                             $ 1,000,000    $  1,062,820
                           Puerto Rico Public Finance Corp., 5.75%, 2007 (c)                            1,000,000       1,017,620
                           Puerto Rico Public Finance Corp., RITES, AMBAC, 6.826%, 2013 (z)(v)          1,375,000       1,625,993
                           Puerto Rico Public Finance Corp., RITES, AMBAC, 6.826%, 2019 (z)(v)          1,300,000       1,611,818
                           Spartanburg, SC, Public Facilities Corp. (Renaissance Park), AMBAC,
                           5.125%, 2025                                                                   685,000         716,763
                                                                                                                     ------------
                                                                                                                     $  6,035,014
- ---------------------------------------------------------------------------------------------------------------------------------
Tax - Other - 0.1%         Virgin Islands Public Finance Authority Rev., "A", 5.25%, 2024             $   180,000    $    186,991
- ---------------------------------------------------------------------------------------------------------------------------------
Tax Assessment - 0.3%      Lancaster County, SC, Assessment Rev. (Sun City Carolina Lakes),
                           5.45%, 2037                                                                $   500,000    $    501,060
- ---------------------------------------------------------------------------------------------------------------------------------
Tobacco - 0.7%             South Carolina Tobacco Settlement Authority, 6.375%, 2028                  $ 1,000,000    $  1,075,290
- ---------------------------------------------------------------------------------------------------------------------------------
Transportation - Special
Tax - 3.4%                 South Carolina Transportation Infrastructure Rev., "A", AMBAC, 5%, 2023    $   500,000    $    518,435
                           South Carolina Transportation Infrastructure Rev., "A", AMBAC, 5%, 2027      2,000,000       2,078,440
                           South Carolina Transportation Infrastructure Rev., "A", AMBAC, 5%, 2033      1,645,000       1,707,197
                           South Carolina Transportation Infrastructure Rev., "A", MBIA,
                           5.375%, 2009 (c)                                                             1,000,000       1,064,840
                                                                                                                     ------------
                                                                                                                     $  5,368,912
- ---------------------------------------------------------------------------------------------------------------------------------
Universities -
Colleges - 11.6%           Clemson University, University Rev., AMBAC, 6.25%, 2009 (c)                $ 1,250,000    $  1,355,550
                           College Charleston, SC, Higher Education Facility Rev., "A", FGIC,
                           5.25%, 2028                                                                  2,435,000       2,561,230
                           College of Charleston, SC, Academic & Administrative Facilities Rev.,
                           "B", XLCA, 5%, 2024                                                            800,000         833,672
                           College of Charleston, SC, Academic & Administrative Facilities Rev.,
                           "B", XLCA, 5.125%, 2034                                                      1,510,000       1,579,958
                           South Carolina Educational Facilities Authority (Furman University),
                           5%, 2038                                                                     1,000,000       1,027,120
                           South Carolina Educational Facilities Authority (Furman University),
                           AMBAC, 5.375%, 2020                                                          1,245,000       1,332,013
                           South Carolina Educational Facilities Authority (Furman University),
                           AMBAC, 5.5%, 2030                                                            2,000,000       2,114,380
                           South Carolina Jobs & Economic Development Authority, Student Housing
                           Rev. (Francis Marion University), "A", MBIA, 5%, 2034                        1,945,000       2,007,668
                           University of South Carolina, University Rev., "A", AMBAC, 5%, 2034          3,665,000       3,770,369
                           University of South Carolina, University Rev., "A", FGIC,
                           5.625%, 2010 (c)                                                             1,555,000       1,671,096
                                                                                                                     ------------
                                                                                                                     $ 18,253,056
- ---------------------------------------------------------------------------------------------------------------------------------
Utilities - Municipal
Owned - 11.1%              Camden, SC, Public Utilities Rev., MBIA, 5.5%, 2007 (c)                    $ 1,425,000    $  1,477,098
                           Camden, SC, Public Utilities Rev., MBIA, 5.5%, 2017                             75,000          77,797
                           Easley, SC, Utility Rev., FSA, 5%, 2027                                      1,000,000       1,038,330
                           Easley, SC, Utility Rev., Refunding & Improvement, FSA, 5%, 2034             3,500,000       3,643,990
                           Greenwood, SC, Combined Public Utility, Refunding & Improvement
                           Systems, MBIA, 5%, 2021                                                        175,000         183,141
                           Orangeburg County, SC, Solid Waste Disposal Facilities Rev., Electric
                           & Gas, AMBAC, 5.7%, 2024                                                     2,000,000       2,003,340
                           Piedmont, SC, Municipal Power Agency, FGIC, 6.25%, 2021                      2,600,000       3,152,240
                           Puerto Rico Electric Power Authority, RITES, FSA, 6.559%, 2015 (z)(v)        1,000,000       1,069,460
                           South Carolina Public Service Authority, "A", AMBAC, 5%, 2034                2,000,000       2,064,600
                           South Carolina Public Service Authority, "A", MBIA, 5.5%, 2018                 200,000         212,752
                           South Carolina Public Service Authority, "A", MBIA, 5%, 2030                 1,000,000       1,044,630
                           South Carolina Public Service Authority, "B", FSA, 5.125%, 2037              1,500,000       1,550,685
                                                                                                                     ------------
                                                                                                                     $ 17,518,063
- ---------------------------------------------------------------------------------------------------------------------------------
Water & Sewer Utility
Revenue - 14.5%            Anderson County, SC, Joint Municipal Water, FSA, 5%, 2032                  $ 1,000,000    $  1,030,870
                           Anderson County, SC, Water & Sewer Systems Rev., FGIC, 5.125%, 2032          2,000,000       2,093,980
                           Charleston, SC, Waterworks & Sewer Rev., Capital Improvement, "B",
                           5%, 2028                                                                     1,000,000       1,031,650
                           Columbia, SC, Waterworks & Sewer Systems Rev., 6%, 2010 (c)                  2,000,000       2,164,660
                           Greenville, SC, Stormwater Systems, FSA, 5%, 2022                              595,000         622,537
                           Greenville, SC, Waterworks Rev., 5.5%, 2007 (c)                              1,000,000       1,035,040
                           Greenville, SC, Waterworks Rev., 5.25%, 2020                                   860,000         919,340
                           Rock Hill, SC, Utility Systems Rev., Refunding & Improvement, "A",
                           FSA, 5.375%, 2023                                                              500,000         536,565
                           Spartanburg, SC, San Sewer District, Sewer Systems Rev., "B", MBIA,
                           5%, 2034                                                                     4,000,000       4,145,120
                           Spartanburg, SC, Water & Sewer Authority Rev., "B", MBIA, 5.25%, 2030        1,000,000       1,061,680
                           Spartanburg, SC, Waterworks Rev., FGIC, 6.05%, 2006 (c)                      2,750,000       2,761,193
                           Western Carolina Regional Sewer Authority Rev., AMBAC, 0%, 2007              4,000,000       3,871,440
                           York County, SC, Water & Sewer Rev., Refunding & Capital Improvement,
                           MBIA, 5%, 2027                                                               1,490,000       1,551,209
                                                                                                                     ------------
                                                                                                                     $ 22,825,284
- ---------------------------------------------------------------------------------------------------------------------------------
  TOTAL MUNICIPAL BONDS (IDENTIFIED COST, $145,381,815)                                                              $153,716,503
- ---------------------------------------------------------------------------------------------------------------------------------

Floating Rate Demand Notes - 1.5%
- ---------------------------------------------------------------------------------------------------------------------------------
                           Allegheny County, PA, Hospital Development Authority Rev.
                           (Presbyterian University Hospital), "B", 3.22%, due 4/06/06                $   400,000    $    400,000
                           Allegheny County, PA, Hospital Development Authority Rev.
                           (Presbyterian University Hospital), "D", 3.22%, due 4/06/06                    100,000         100,000
                           Burke County, GA, Development Authority Pollution Control Rev.
                           (Oglethorpe Power Corp.), "A", 3.22%, due 4/05/06                            1,230,000       1,230,000
                           Georgia Municipal Electric Authority, 3.05%, due 4/05/06                       100,000         100,000
                           Jefferson County, AL, Sewer Rev., Capital Improvement Warrants, "A",
                           3.22%, due 4/06/06                                                             400,000         400,000
                           Jefferson County, AL, Sewer Rev., Warrants, "B-4", 3.22%, due 4/06/06          100,000         100,000
- ---------------------------------------------------------------------------------------------------------------------------------
  TOTAL FLOATING RATE DEMAND NOTES, AT IDENTIFIED COST                                                               $  2,330,000
- ---------------------------------------------------------------------------------------------------------------------------------
  TOTAL INVESTMENTS (IDENTIFIED COST, $147,711,815)                                                                  $156,046,503
- ---------------------------------------------------------------------------------------------------------------------------------
Other Assets, Less Liabilities - 0.8%                                                                                   1,334,833
- ---------------------------------------------------------------------------------------------------------------------------------
  NET ASSETS - 100.0%                                                                                                $157,381,336
- ---------------------------------------------------------------------------------------------------------------------------------


INTEREST RATE SWAPS

                             NOTIONAL PRINCIPAL                                                                    UNREALIZED
                                 AMOUNT OF               CASH FLOWS PAID                  CASH FLOWS              APPRECIATION
EXPIRATION      CURRENCY          CONTRACT                 BY THE FUND               RECEIVED BY THE FUND        (DEPRECIATION)
- -------------------------------------------------------------------------------------------------------------------------------

                                                                                                     
12/01/07          USD           $3,000,000               Fixed - 3 Year                Floating - 7 Day             $ 41,200
                                                     BMA Swap Index (2.795%)            BMA Swap Index
- -------------------------------------------------------------------------------------------------------------------------------
 7/13/16          USD            2,000,000               Fixed - 10 Year               Floating - 7 Day               42,048
                                                     BMA Swap Index (3.742%)            BMA Swap Index
- -------------------------------------------------------------------------------------------------------------------------------
 6/22/18          USD            3,000,000               Fixed - 12 Year               Floating - 7 Day               57,092
                                                     BMA Swap Index (3.861%)            BMA Swap Index
- -------------------------------------------------------------------------------------------------------------------------------
 8/02/21          USD            2,000,000               Fixed - 15 Year               Floating - 7 Day               31,963
                                                     BMA Swap Index (4.011%)            BMA Swap Index
- -------------------------------------------------------------------------------------------------------------------------------
 9/13/26          USD            1,500,000             Floating - 3 Month               Fixed - 20 Year              (23,244)
                                                        LIBOR Swap Index           LIBOR Swap Index (5.363%)
- -------------------------------------------------------------------------------------------------------------------------------
                                                                                                                    $149,059
                                                                                                                    ========

At March 31, 2006, the fund had sufficient cash and/or securities to cover any
commitments under these derivative contracts.

SEE PORTFOLIO FOOTNOTES AND NOTES TO FINANCIAL STATEMENTS



PORTFOLIO OF INVESTMENTS - 3/31/06         MFS(R) TENNESSEE MUNICIPAL BOND FUND

The Portfolio of Investments is a complete list of all securities owned by your
fund. It is categorized by broad-based asset classes.



Municipal Bonds - 98.1%
- ---------------------------------------------------------------------------------------------------------------------------------
                           ISSUER                                                                     SHARES/PAR      VALUE ($)
- ---------------------------------------------------------------------------------------------------------------------------------
                                                                                                            
Airport and Port           Memphis-Shelby County, TN, Airport Authority Facilities Rev., FSA,
Revenue - 1.3%             5.125%, 2021                                                               $ 1,500,000    $  1,536,810
- ---------------------------------------------------------------------------------------------------------------------------------
General Obligations -
General Purpose - 8.3%     Chattanooga, TN, Public Improvement, 5%, 2021                              $ 2,570,000    $  2,663,368
                           Commonwealth of Puerto Rico, Unrefunded, Public Improvement, FSA,
                           5%, 2024                                                                   770,000         801,955
                           Lincoln County, TN, School Improvement, FGIC, 5.8%, 2007 (c)                 1,000,000       1,031,330
                           Lincoln County, TN, School Improvement, FGIC, 5.8%, 2007 (c)                 1,000,000       1,031,330
                           Puerto Rico Commonwealth, 5.4%, 2006 (c)                                     3,000,000       3,058,140
                           Puerto Rico Public Building Authority, 5.5%, 2021                            1,000,000       1,101,710
                                                                                                                     ------------
                                                                                                                     $  9,687,833
- ---------------------------------------------------------------------------------------------------------------------------------
General Obligations -
Improvement - 2.2%         Knoxville, TN, Recreational Facilities Improvement, 5.5%, 2008 (c)         $   645,000    $    675,631
                           Williamson County, TN, Public Improvement, 5%, 2018                          1,760,000       1,850,992
                                                                                                                     ------------
                                                                                                                     $  2,526,623
- ---------------------------------------------------------------------------------------------------------------------------------
General Obligations -
Schools - 12.8%            Fayette County, TN, School District, AMBAC, 5.6%, 2008 (c)                 $ 1,215,000    $  1,258,072
                           Gibson County, TN, School District, MBIA, 5.75%, 2009 (c)                      455,000         482,086
                           Gibson County, TN, School District, MBIA, 5.75%, 2016                          190,000         201,533
                           Giles County, TN, School Improvement, FGIC, 5.75%, 2010 (c)                  1,980,000       2,125,510
                           Greene County, TN, Rural School, FGIC, 5%, 2011 (c)                          1,240,000       1,313,780
                           Roane County, TN, Rural School, FGIC, 5.6%, 2008 (c)                           915,000         947,684
                           Roane County, TN, Rural School, FGIC, 5.6%, 2008 (c)                           975,000       1,009,827
                           Rutherford County, TN, School & Public Improvement, 5%, 2022                 1,510,000       1,573,284
                           Rutherford County, TN, School District, 5.875%, 2010 (c)                     1,100,000       1,189,243
                           Rutherford County, TN, School Improvement, 0%, 2007 (c)                      1,500,000         914,955
                           Rutherford County, TN, School Improvement, 5.875%, 2010 (c)                  2,000,000       2,162,260
                           Williamson County, TN, Rural School, 6.125%, 2010 (c)                        1,575,000       1,711,442
                                                                                                                     ------------
                                                                                                                     $ 14,889,676
- ---------------------------------------------------------------------------------------------------------------------------------
Healthcare Revenue -       Jackson, TN, Hospital Rev. (Jackson-Madison County General Hospital),
Hospitals - 13.9%          AMBAC, 5%, 2018                                                            $ 1,000,000    $  1,034,680
                           Johnson City, TN, Health & Education Financing Authority Rev.
                           (Johnson City Medical Center Hospital), MBIA, 5.25%, 2016                    1,375,000       1,381,545
                           Johnson City, TN, Health & Education Financing Authority Rev.
                           (Johnson City Medical Center Hospital), MBIA, ETM, 5%, 2018 (c)              1,500,000       1,554,285
                           Johnson City, TN, Health & Educational Facilities, Hospital Rev.
                           (Mountain States Health), "A", 5.5%, 2036                                      600,000         625,230
                           Knox County, TN, Health Educational Housing Facilities Board,
                           Hospital Facilities Rev. (Baptist Health Systems), 6.5%, 2031                  300,000         316,839
                           Knox County, TN, Health, Education & Housing Facilities Board Rev.
                           (Catholic Healthcare Partners), 5.25%, 2030                                  1,000,000       1,033,270
                           Knox County, TN, Health, Education & Housing Facilities Board Rev.
                           (Covenent Health), FSA, 5%, 2022                                             1,000,000       1,036,960
                           Knox County, TN, Health, Education & Housing Facilities Board Rev.
                           (East Tennessee Children's Hospital), 5.75%, 2033                              450,000         469,971
                           Knox County, TN, Health, Education & Housing Facilities Board Rev.
                           (Fort Sanders), MBIA, 5.75%, 2014                                            3,250,000       3,613,675
                           Metropolitan Government of Nashville & Davidson County, TN, Health,
                           Educational & Housing Facilities Board Rev. (Adventist Health
                           System), 5.25%, 2020                                                         1,000,000       1,025,150
                           Shelby County, TN, Health Educational & Housing Facilities Board Rev.
                           (St. Judes Children's Research), 5.5%, 2020                                  1,750,000       1,833,230
                           Shelby County, TN, Health Educational & Housing Facilities Hospital
                           Rev., (Methodist Healthcare), 6.5%, 2012 (c)                                   625,000         716,294
                           Shelby County, TN, Health Educational & Housing Facilities Hospital
                           Rev., (Methodist Healthcare), 6.5%, 2012 (c)                                   375,000         429,776
                           Springfield, TN, Health & Higher Educational Facilities Hospital Rev.
                           (Northcrest Medical Center), 5.25%, 2013                                     1,000,000       1,013,450
                                                                                                                     ------------
                                                                                                                     $ 16,084,355
- ---------------------------------------------------------------------------------------------------------------------------------
Healthcare Revenue -       Shelby County, TN, Health Educational Rev. (Germantown Village),
Long Term Care - 0.5%      7.25%, 2034                                                                $   250,000    $    264,998
                           Shelby County, TN, Nursing Home Rev. (Beverly Enterprises, Inc.),
                           7.4%, 2006 (c)                                                                 250,000         260,898
                                                                                                                     ------------
                                                                                                                     $    525,896
- ---------------------------------------------------------------------------------------------------------------------------------
Industrial Revenue -
Other - 1.2%               Hardeman County, TN, Correctional Facilities Rev., 7.75%, 2017             $ 1,000,000    $  1,033,190
                           Virgin Islands Public Finance Authority, Refinery Facilities Rev.
                           (Hovensa Refinery), 5.875%, 2022                                               320,000         337,446
                                                                                                                     ------------
                                                                                                                     $  1,370,636
- ---------------------------------------------------------------------------------------------------------------------------------
Industrial Revenue -       McMinn County, TN, Industrial Development Board, Pollution Control
Paper - 0.9%               Rev. (Bowater, Inc.), 7.625%, 2016                                         $ 1,000,000    $  1,006,540
- ---------------------------------------------------------------------------------------------------------------------------------
Miscellaneous Revenue -
Entertainment &
Tourism - 3.3%             Memphis-Shelby County, TN (Memphis Sports Arena), AMBAC, 5.125%, 2028      $ 2,000,000    $  2,088,880
                           Memphis-Shelby County, TN (Memphis Sports Arena), AMBAC, 5.35%, 2029         1,665,000       1,776,871
                                                                                                                     ------------
                                                                                                                     $  3,865,751
- ---------------------------------------------------------------------------------------------------------------------------------
Multi-Family Housing       Chattanooga, TN, Health, Educational & Housing Facilities (Rainbow
Revenue - 3.9%             Creek), GNMA, 6.125%, 2019                                                 $   425,000    $    447,461
                           Franklin, TN, Industrial Development Rev. (Landings Apartments), FSA,
                           6%, 2026                                                                     1,000,000       1,024,820
                           Knoxville, TN, Community Development Corp., 5%, 2024                         1,000,000       1,045,240
                           Memphis, TN, Health & Educational Facilities Board Rev. (Hickory
                           Point Apartments), MBIA, 5.85%, 2020                                         1,000,000       1,035,080
                           Metropolitan Government of Nashville & Davidson County, TN, Health &
                           Educational & Housing Facilities Board Rev. (Berkshire Place), GNMA,
                           6%, 2023                                                                       500,000         521,815
                           Metropolitan Government of Nashville & Davidson County, TN, Health,
                           Educational & Housing Facilities Board Rev. (Herman Street), FHA,
                           7.25%, 2032                                                                    485,000         486,896
                                                                                                                     ------------
                                                                                                                     $  4,561,312
- ---------------------------------------------------------------------------------------------------------------------------------
Single Family Housing -    Tennessee Housing Development Agency (Homeownership Program), "1A",
State - 12.5%              5%, 2035                                                                   $ 1,000,000    $  1,039,370
                           Tennessee Housing Development Agency Mortgage Finance, 5.2%, 2023            1,500,000       1,551,510
                           Tennessee Housing Development Agency Mortgage Finance, 5.35%, 2034           1,150,000       1,174,104
                           Tennessee Housing Development Agency Rev., Homeownership Program,
                           5.45%, 2014                                                                  2,535,000       2,591,480
                           Tennessee Housing Development Agency Rev., Homeownership Program,
                           4.45%, 2017                                                                    645,000         634,151
                           Tennessee Housing Development Agency Rev., Homeownership Program,
                           4.45%, 2017                                                                    660,000         648,503
                           Tennessee Housing Development Agency Rev., Homeownership Program,
                           4.55%, 2018                                                                    575,000         565,214
                           Tennessee Housing Development Agency Rev., Homeownership Program,
                           4.55%, 2018                                                                    690,000         677,884
                           Tennessee Housing Development Agency Rev., Homeownership Program,
                           6%, 2020                                                                     1,260,000       1,288,073
                           Tennessee Housing Development Agency Rev., Homeownership Program,
                           5.05%, 2027                                                                    885,000         888,690
                           Tennessee Housing Development Agency Rev., Homeownership Program,
                           5.125%, 2034                                                                 1,090,000       1,125,381
                           Tennessee Housing Development Agency Rev., Homeownership Program,
                           5.25%, 2034                                                                  1,400,000       1,443,484
                           Tennessee Housing Development Agency Rev., Homeownership Program,
                           FSA, 5.4%, 2032                                                                790,000         798,177
                           Tennessee Housing Development Agency Rev., Homeownership Program,
                           MBIA, 6.125%, 2020                                                              70,000          70,725
                                                                                                                     ------------
                                                                                                                     $ 14,496,746
- ---------------------------------------------------------------------------------------------------------------------------------
State & Local Agencies -   Chattanooga,TN, Industrial Development Board, AMBAC, 5.75%, 2018           $ 1,000,000    $  1,078,060
5.4%                       Puerto Rico Public Finance Corp., 5.75%, 2007 (c)                            2,000,000       2,035,240
                           State of Tennessee, School Bond Authority (Higher Education
                           Facilities), FSA, 5.25%, 2029                                                3,000,000       3,152,430
                                                                                                                     ------------
                                                                                                                     $  6,265,730
- ---------------------------------------------------------------------------------------------------------------------------------
Tax - Other - 0.7%         Virgin Islands Public Finance Authority Rev., "E", 5.875%, 2018            $   730,000    $    768,734
- ---------------------------------------------------------------------------------------------------------------------------------
Tobacco - 1.0%             Guam Economic Development Authority Tobacco Settlement, "B", 5.5%, 2041    $   350,000    $    357,193
                           Tobacco Settlement Financing Corp., 5%, 2031                                   750,000         752,040
                                                                                                                     ------------
                                                                                                                     $  1,109,233
- ---------------------------------------------------------------------------------------------------------------------------------
Universities -             Metropolitan Government of Nashville & Davidson County, TN, Health,
Colleges - 4.2%            Educational & Housing Facilities Board Rev. (McKendree Village,
                           Inc.), 5.125%, 2020                                                        $ 1,000,000    $  1,020,680
                           Metropolitan Government of Nashville & Davidson County, TN, Health,
                           Educational & Housing Facilities Board Rev. (Meharry Medical
                           College), AMBAC, 5%, 2024                                                    3,750,000       3,858,825
                                                                                                                     ------------
                                                                                                                     $  4,879,505
- ---------------------------------------------------------------------------------------------------------------------------------
Utilities - Municipal      Jackson, TN, Electrical Systems Rev., MBIA, 5%, 2018                       $ 1,000,000    $  1,015,930
Owned - 6.9%               Lawrenceburg, TN, Electrical Rev., MBIA, 5.5%, 2009 (c)                      1,255,000       1,325,242
                           Metropolitan Government of Nashville & Davidson County, TN,
                           Electrical Rev., 5.125%, 2021                                                1,500,000       1,568,775
                           Metropolitan Government of Nashville & Davidson County, TN,
                           Electrical Rev., "A", AMBAC, 5%, 2029                                        1,500,000       1,558,695
                           Metropolitan Government of Nashville & Davidson County, TN,
                           Electrical Rev., MBIA, 0%, 2012                                              3,305,000       2,563,622
                                                                                                                     ------------
                                                                                                                     $  8,032,264
- ---------------------------------------------------------------------------------------------------------------------------------
Water & Sewer Utility      Hallsdale-Powell Utility District, TN, Water & Sewer Rev., "A", FGIC,
Revenue - 19.1%            5%, 2024                                                                   $ 1,500,000    $  1,561,875
                           Hallsdale-Powell Utility District, TN, Water & Sewer Rev., FGIC,
                           5%, 2027                                                                     3,000,000       3,109,110
                           Harpeth Valley, TN, Utilities Improvements Rev., MBIA, 5.05%, 2008 (c)       1,925,000       1,990,046
                           Madison, TN, Utility Waterworks Rev., MBIA, 5%, 2019                         2,750,000       2,811,820
                           Memphis, TN, Sewage Systems Rev., 5.75%, 2016                                  625,000         655,594
                           Memphis, TN, Sewage Systems Rev., 5.75%, 2018                                1,145,000       1,201,048
                           Memphis, TN, Sewage Systems Rev., 5.75%, 2020                                  750,000         789,480
                           Rutherford County, TN, Water Rev., MBIA, 5%, 2027                              770,000         807,106
                           West Knox Utility District, TN, Water & Sewer Rev., MBIA, ETM,
                           0%, 2006 (c)                                                                 1,920,000       1,876,224
                           West Knox Utility District, TN, Water & Sewer Rev., MBIA, ETM,
                           0%, 2007 (c)                                                                 1,920,000       1,806,931
                           West Wilson Utility District, TN, Waterworks Rev., MBIA, 5.25%, 2030         2,000,000       2,118,140
                           White House Utility District, TN, Water & Sewer Rev. (Robertson &
                           Sumner Counties Waterworks), FSA, 6%, 2010 (c)                               1,000,000       1,080,650
                           White House Utility District, TN, Water & Sewer Rev. (Robertson &
                           Sumner Counties Waterworks), FSA, 5%, 2021                                     800,000         827,536
                           White House Utility District, TN, Water & Sewer Rev. (Robertson &
                           Sumner Counties Waterworks), FSA, 5%, 2032                                   1,500,000       1,540,515
                                                                                                                     ------------
                                                                                                                     $ 22,176,075
- ---------------------------------------------------------------------------------------------------------------------------------
  TOTAL MUNICIPAL BONDS (IDENTIFIED COST, $108,161,488)                                                              $113,783,719
- ---------------------------------------------------------------------------------------------------------------------------------

Floating Rate Demand Notes - 0.3%
- ---------------------------------------------------------------------------------------------------------------------------------
                           Jefferson County, AL, Sewer Rev., Warrants, "B-4", 3.22%, due 4/06/06      $   200,000    $    200,000
                           Sevier County, TN, Public Building Authority, 3.19%, due 4/06/06               200,000         200,000
- ---------------------------------------------------------------------------------------------------------------------------------
  TOTAL FLOATING RATE DEMAND NOTES, AT IDENTIFIED COST                                                               $    400,000
- ---------------------------------------------------------------------------------------------------------------------------------
  TOTAL INVESTMENTS (IDENTIFIED COST, $108,561,488)                                                                  $114,183,719
- ---------------------------------------------------------------------------------------------------------------------------------
Other Assets, Less Liabilities - 1.6%                                                                                   1,859,269
- ---------------------------------------------------------------------------------------------------------------------------------
  NET ASSETS - 100.0%                                                                                                $116,042,988
- ---------------------------------------------------------------------------------------------------------------------------------


INTEREST RATE SWAPS

                             NOTIONAL PRINCIPAL                                                                    UNREALIZED
                                 AMOUNT OF               CASH FLOWS PAID                  CASH FLOWS              APPRECIATION
EXPIRATION      CURRENCY          CONTRACT                 BY THE FUND               RECEIVED BY THE FUND        (DEPRECIATION)
- -------------------------------------------------------------------------------------------------------------------------------

                                                                                                    
9/07/26            USD          $2,000,000             Floating - 3 Month               Fixed - 20 Year            $ (53,817)
                                                        LIBOR Swap Index           LIBOR Swap Index (5.268%)
- -------------------------------------------------------------------------------------------------------------------------------
9/13/26            USD           2,150,000             Floating - 3 Month               Fixed - 20 Year              (33,317)
                                                        LIBOR Swap Index           LIBOR Swap Index (5.363%)
- -------------------------------------------------------------------------------------------------------------------------------
7/11/36            USD           2,000,000              Floating - 7 Day                Fixed - 30 Year              (64,550)
                                                         BMA Swap Index             BMA Swap Index (4.127%)
- -------------------------------------------------------------------------------------------------------------------------------
                                                                                                                   $(151,684)
                                                                                                                   =========

At March 31, 2006, the fund had sufficient cash and/or securities to cover any
commitments under these derivative contracts.

SEE PORTFOLIO FOOTNOTES AND NOTES TO FINANCIAL STATEMENTS



PORTFOLIO OF INVESTMENTS - 3/31/06          MFS(R) VIRGINIA MUNICIPAL BOND FUND

The Portfolio of Investments is a complete list of all securities owned by your
fund. It is categorized by broad-based asset classes.



Municipal Bonds - 97.4%
- ---------------------------------------------------------------------------------------------------------------------------------
                           ISSUER                                                                     SHARES/PAR      VALUE ($)
- ---------------------------------------------------------------------------------------------------------------------------------
                                                                                                            
Airport & Port             Metropolitan Washington, D C, Airports Authority Rev., "A", FSA,
Revenue - 8.5%             5%, 2032                                                                   $ 1,455,000    $  1,496,889
                           Metropolitan Washington, DC, Airport Authority Rev., "A", FGIC,
                           5.125%, 2024                                                                 1,000,000       1,035,500
                           Metropolitan Washington, DC, Airport Authority Rev., "A", FGIC, 5%, 2025       705,000         724,486
                           Metropolitan Washington, DC, Airport Authority Rev., "A", MBIA, 5%, 2035     3,000,000       3,075,180
                           Metropolitan Washington, DC, Airport Authority Rev., "B", 5.5%, 2016         2,465,000       2,552,039
                           Metropolitan Washington, DC, Airport Authority Rev., "B", 5.75%, 2020       11,000,000      11,427,900
                           Norfolk, VA, Airport Authority Rev., "A", FGIC, 5.375%, 2017                 1,755,000       1,871,339
                           Norfolk, VA, Airport Authority Rev., "A", FGIC, 5%, 2022                     3,000,000       3,100,230
                           Virginia Resources Authority, Airport Rev., "B", 5.125%, 2027                  720,000         739,296
                                                                                                                     ------------
                                                                                                                     $ 26,022,859
- ---------------------------------------------------------------------------------------------------------------------------------
General Obligations -      Lebanon, VA, 6.375%, 2006 (c)                                              $ 1,625,000    $  1,687,335
General Purpose - 2.1%     Newport News, VA, Economic Development, "A", 5%, 2031                        1,595,000       1,659,980
                           Stafford County, VA, Industrial Development Authority Rev., "B",
                           MBIA, 5%, 2034                                                               3,060,000       3,177,963
                                                                                                                     ------------
                                                                                                                     $  6,525,278
- ---------------------------------------------------------------------------------------------------------------------------------
General Obligations -      Chesterfield County, VA, 6%, 2010 (c)                                      $ 1,900,000    $  2,054,717
Improvement - 12.8%        Chesterfield County, VA, 5%, 2020                                            2,015,000       2,106,178
                           Hampton, VA, Public Improvement, 6%, 2010 (c)                                3,280,000       3,607,114
                           Hampton, VA, Public Improvement, 6%, 2010 (c)                                3,480,000       3,827,060
                           Lynchburg, VA, Public Improvement, 5.6%, 2010 (c)                            1,765,000       1,910,260
                           Puerto Rico Municipal Finance Agency, RITES, FSA, 8.108%, 2016 (z)(v)        1,105,000       1,289,181
                           Puerto Rico Municipal Finance Agency, RITES, FSA, 7.101%, 2017 (z)(v)          615,000         698,419
                           Richmond, VA, 0%, 2008                                                       2,000,000       1,875,120
                           Richmond, VA, "A", FSA, 5.125%, 2010 (c)                                     5,000,000       5,297,750
                           Richmond, VA, "B", 0%, 2007                                                  5,280,000       5,135,856
                           Richmond, VA, "B", 0%, 2008                                                  5,270,000       4,940,941
                           Richmond, VA, "B", 0%, 2009                                                  5,175,000       4,620,758
                           Suffolk, VA, Public Improvement, 5.5%, 2010 (c)                              1,880,000       2,022,842
                                                                                                                     ------------
                                                                                                                     $ 39,386,196
- ---------------------------------------------------------------------------------------------------------------------------------
General Obligations -      Harrisonburg, VA, Public Recreation Facilities, FSA, 5.75%, 2029           $ 1,000,000    $  1,088,010
Schools - 0.4%
- ---------------------------------------------------------------------------------------------------------------------------------
Healthcare Revenue -       Albemarle County, VA, Industrial Development Authority, Hospital Rev.
Hospitals - 12.3%          (Martha Jefferson Hospital), 5.25%, 2023                                   $ 3,000,000    $  3,082,890
                           Arlington County, VA, Industrial Development Authority Rev. (Virginia
                           Hospital Center Arlington Health Systems), 5.25%, 2011 (c)                   2,600,000       2,802,618
                           Fredericksburg, VA, Industrial Development Rev. (Medicorp Health
                           Systems), "B", 5.125%, 2033                                                    750,000         760,065
                           Fredericksburg, VA, Industrial Development Rev. (Medicorp Health
                           Systems), AMBAC, 5.25%, 2023                                                11,000,000      11,385,000
                           Henrico County, VA, Economic Development Authority Rev. (Bon Secours
                           Health Systems, Inc.), "A", 5.6%, 2030                                       2,000,000       2,085,020
                           Henrico County, VA, Industrial Development Authority Rev. (Bon
                           Secours Health Systems, Inc.), MBIA, 6.25%, 2020                             1,500,000       1,768,005
                           Loudoun County, VA, Industrial Development Authority, Hospital Rev.
                           (Loudoun Hospital Center), "A", 6.1%, 2012 (c)                               1,000,000       1,126,600
                           Lynchburg, VA, Industrial Development Authority, Healthcare
                           Facilities Rev. (Central Health), 5.2%, 2008 (c)                               855,000         885,549
                           Lynchburg, VA, Industrial Development Authority, Healthcare
                           Facilities Rev., Unrefunded Balance (Central Health), 5.2%, 2018               145,000         150,330
                           Medical College of Virginia, Hospital Authority Rev., MBIA, 5.125%, 2018     3,000,000       3,108,900
                           Peninsula Ports Authority, VA, Health System Rev. (Riverside Health
                           System), 5%, 2018                                                            3,580,000       3,678,522
                           Peninsula Ports Authority, VA, Hospital Facility Rev. (Whittaker
                           Memorial), FHA, 8.7%, 2023                                                   2,025,000       2,357,809
                           Prince William County, VA, Industrial Development Authority, Hospital
                           Rev. (Potomac Hospital Corp.), 5.2%, 2026                                    1,000,000       1,035,590
                           Roanoke, VA, Industrial Development Authority, Hospital Rev. (Roanoke
                           Memorial Hospital), "B", MBIA, 6.125%, 2017                                  3,000,000       3,490,620
                                                                                                                     ------------
                                                                                                                     $ 37,717,518
- ---------------------------------------------------------------------------------------------------------------------------------
Healthcare Revenue -       Henrico County, VA, Economic Development Authority, Residential Care
Long Term Care - 0.5%      Facilities (United Methodist Homes), "A", 6.7%, 2027                       $   750,000    $    782,888
                           Norfolk, VA, Redevelopment & Housing Authority Rev. (Fort Norfolk
                           Retirement Community), "A", 6.125%, 2035                                       750,000         761,385
                                                                                                                     ------------
                                                                                                                     $  1,544,273
- ---------------------------------------------------------------------------------------------------------------------------------
Industrial Revenue -       Charles City County, VA, Industrial Development Authority, Solid
Environmental Services -   Waste Disposal Facility Rev. (Waste Management, Inc.), 6.25%, 2027         $ 1,500,000    $  1,643,880
1.1%                       Henrico County, VA, Industrial Development Authority Rev. (Browning
                           Ferris, Inc.), 5.45%, 2014                                                   1,750,000       1,689,713
                                                                                                                     ------------
                                                                                                                     $  3,333,593
- ---------------------------------------------------------------------------------------------------------------------------------
Industrial Revenue -       Loudoun County, VA, Industrial Development Authority Rev. (Dulles
Other - 1.3%               Airport Marriot Hotel), 7.125%, 2015                                       $ 2,000,000    $  2,040,800
                           Peninsula Ports Authority, Virginia Coal (Dominion Terminal
                           Associates), 6%, 2033                                                        1,000,000       1,069,110
                           Virgin Islands Public Finance Authority, Refinery Facilities Rev.
                           (Hovensa Refinery), 5.875%, 2022                                               750,000         790,890
                                                                                                                     ------------
                                                                                                                     $  3,900,800
- ---------------------------------------------------------------------------------------------------------------------------------
Industrial Revenue -       Bedford County, VA, Industrial Development Authority Rev. (Nekooska
Paper - 1.8%               Packaging Corp.), 5.6%, 2025                                               $ 1,000,000    $    969,570
                           Isle Wight County, VA, Industrial Development Authority, Solid Waste
                           Disposal Facilities Rev. (Union Camp Corp.), 6.1%, 2027                      2,750,000       2,819,300
                           West Point, VA, Industrial Development Authority, Solid Waste
                           Disposal Rev. (Chesapeake Corp.), "A", 6.375%, 2019                          1,750,000       1,751,435
                                                                                                                     ------------
                                                                                                                     $  5,540,305
- ---------------------------------------------------------------------------------------------------------------------------------
Multi-Family Housing       Alexandria, VA, Redevelopment & Housing Finance Authority Rev.
Revenue - 4.3%             (Jefferson Village Apartments), "B", 9%, 2018                              $ 3,610,000    $  3,593,394
                           Arlington County, VA, Industrial Development Authority Rev. (Colonial
                           Village), FNMA, 5.15%, 2031                                                  3,000,000       3,073,560
                           Virginia Housing Development Authority Rev., "B", 5.95%, 2016                1,345,000       1,367,569
                           Virginia Housing Development Authority Rev., "G", 5.625%, 2020               2,000,000       2,060,220
                           Virginia Housing Development Authority Rev., "I", 5.15%, 2017                3,000,000       3,055,260
                                                                                                                     ------------
                                                                                                                     $ 13,150,003
- ---------------------------------------------------------------------------------------------------------------------------------
Parking - 0.5%             Norfolk, VA, Parking Systems Rev., MBIA, 5%, 2020                          $ 1,630,000    $  1,688,468
- ---------------------------------------------------------------------------------------------------------------------------------
Single Family Housing -
State - 3.0%               Virginia Housing Development Authority Commonwealth, "C", 4.4%, 2022       $ 1,270,000    $  1,217,740
                           Virginia Housing Development Authority Commonwealth, "C", 4.75%, 2032        1,795,000       1,757,897
                           Virginia Housing Development Authority, "A", 4.9%, 2027                      2,850,000       2,838,401
                           Virginia Housing Development Authority, "A", 5%, 2031                        2,000,000       2,026,740
                           Virginia Housing Development Authority, "C", 4.66%, 2027                     1,285,000       1,252,220
                                                                                                                     ------------
                                                                                                                     $  9,092,998
- ---------------------------------------------------------------------------------------------------------------------------------
State & Agency -
Other - 1.6%               Fairfax County, VA, COP, 6.1%, 2017                                        $ 3,090,000    $  3,463,674
                           Virginia Biotechnology Research Park Lease Rev. (Consolidated
                           Laboratories), 5%, 2021                                                      1,500,000       1,565,550
                                                                                                                     ------------
                                                                                                                     $  5,029,224
- ---------------------------------------------------------------------------------------------------------------------------------
State & Local
Agencies - 21.7%           Blue Ridge, VA, Regional Jail Authority, MBIA, 5.2%, 2021                  $ 1,830,000    $  1,904,426
                           Caroline County, VA, Industrial Development Authority, Lease Rev.,
                           AMBAC, 5.125%, 2034                                                          1,000,000       1,046,560
                           Chesapeake, VA, Industrial Development Authority (Chesapeake Court
                           House), MBIA, 6.25%, 2011                                                    3,985,000       4,181,141
                           Chesapeake, VA, Industrial Development Authority (Chesapeake Court
                           House), MBIA, 5.25%, 2017                                                    2,000,000       2,074,840
                           Chesterfield County, VA, Industrial Development Authority, Public
                           Facilities Lease Rev., 7.5%, 2008                                            1,150,000       1,150,356
                           Culpepperva Industrial Development Authority, "N", MBIA, 4.5%, 2030          5,000,000       4,885,500
                           Dinwiddie County, VA, Industrial Development Authority Lease Rev.,
                           "B", MBIA, 5%, 2030                                                          2,500,000       2,585,200
                           Fairfax County, VA, Economic Development Authority (Vienna II
                           Metrorail), 6%, 2009 (c)                                                     1,750,000       1,911,455
                           Fairfax County, VA, Economic Development Authority Rev. (U.S. Route
                           28), MBIA, 5%, 2029                                                          1,000,000       1,042,780
                           Fairfax County, VA, Economic Development Authority, Parking Rev.
                           (Vienna II Metrorail), 6%, 2009 (c)                                          1,650,000       1,802,229
                           Fairfax County, VA, Redevelopment & Housing Authority Rev. (Mott &
                           Gum Springs Community Centers), 5.5%, 2017                                   2,225,000       2,267,787
                           Fairfax, VA, Economic Development Authority Fairfax Public
                           Improvement Project, 5%, 2030                                                1,000,000       1,035,130
                           Front Royal & Warren County, VA, Industrial Development Authority
                           Lease Rev., School & Capital Improvement, "B", FSA, 5%, 2035                 2,875,000       2,976,401
                           King George County, VA, Industrial Development Authority Lease Rev.,
                           FSA, 5%, 2036                                                                2,000,000       2,067,160
                           Middlesex County, VA, Industrial Development Authority Rev., AMBAC,
                           5.125%, 2027                                                                 1,000,000       1,056,240
                           Middlesex County, VA, Industrial Development Authority Rev., AMBAC,
                           5.25%, 2032                                                                  2,000,000       2,113,680
                           Montgomery County, VA, Industrial Development, "B", AMBAC, 6%, 2017          1,000,000       1,107,280
                           Montgomery County, VA, Industrial Development, "C", AMBAC, 6%, 2017          1,120,000       1,240,154
                           New River Valley, VA, Regional Jail Authority, MBIA, 5.125%, 2019            3,405,000       3,548,248
                           Orange County, VA, Industrial Development Authority (Orange County
                           Project), AMBAC, 5%, 2034                                                    1,000,000       1,036,140
                           Pamunkey, VA, Regional Jail Authority, MBIA, 5.75%, 2006 (c)                 2,230,000       2,286,664
                           Pamunkey, VA, Regional Jail Authority, MBIA, 5.75%, 2006 (c)                   270,000         276,861
                           Powhatan County, VA, Economic Development Authority Lease Rev.
                           (Virginia Capital Projects), AMBAC, 5.25%, 2033                              1,000,000       1,055,980
                           Prince William County, VA, Lease Partnerships, 5%, 2021                      1,500,000       1,565,235
                           Puerto Rico Public Finance Corp., RITES, AMBAC, 6.826%, 2013 (z)(v)          2,000,000       2,365,080
                           Puerto Rico Public Finance Corp., RITES, AMBAC, 6.826%, 2016 (z)(v)            500,000         606,740
                           Richmond, VA, Public Facilities, COP (Megahertz Project), "A", AMBAC,
                           5%, 2022                                                                     1,600,000       1,659,616
                           Southwest Virginia Regional Jail Authority Rev., MBIA, 5%, 2035              1,720,000       1,777,964
                           Virginia College Building Authority (21st Century College Program),
                           6%, 2009 (c)                                                                 2,000,000       2,144,020
                           Virginia Public Building Authority Rev., "B", MBIA, 0%, 2007                 3,750,000       3,573,000
                           Virginia Resources Authority Rev., "B", FSA, 5.5%, 2019                      1,070,000       1,140,909
                           Virginia Resources Authority Rev., ROLS, 6.729%, 2021 (z)(v)                 1,390,000       1,534,727
                           Virginia Resources Authority Rev., ROLS, 6.729%, 2023 (z)(v)                 1,520,000       1,658,198
                           Virginia Resources Authority Rev., ROLS, 6.729%, 2033 (z)(v)                 2,510,000       2,682,437
                           Virginia Resources Authority, Infrastructure Rev., "A", 5%, 2017             1,360,000       1,421,200
                                                                                                                     ------------
                                                                                                                     $ 66,781,338
- ---------------------------------------------------------------------------------------------------------------------------------
Tax - Other - 1.6%         Greater Richmond Convention Center Authority, Hotel Tax Rev.
                           (Convention Center Expansion), 6.125%, 2010 (c)                            $ 3,500,000    $  3,855,320
                           Virgin Islands, Public Finance Authority Rev., "A", 5.625%, 2025             1,000,000       1,036,830
                                                                                                                     ------------
                                                                                                                     $  4,892,150
- ---------------------------------------------------------------------------------------------------------------------------------
Tobacco - 1.0%             Children's Trust Fund, Tobacco Settlement Rev., Puerto Rico, 5.375%, 2033  $   455,000    $    466,425
                           Children's Trust Fund, Tobacco Settlement Rev., Puerto Rico, 5.5%, 2039        965,000         990,919
                           Children's Trust Fund, Tobacco Settlement Rev., Puerto Rico, "B",
                           0%, 2055                                                                     2,000,000          69,300
                           Tobacco Settlement Financing Corp., 5.625%, 2037                             1,000,000       1,024,190
                           Virgin Islands Tobacco Settlement Financing Corp., 5%, 2021                    570,000         574,321
                                                                                                                     ------------
                                                                                                                     $  3,125,155
- ---------------------------------------------------------------------------------------------------------------------------------
Toll Roads - 0.3%          Pocahontas Parkway Assn., VA, Toll Road Rev., 0%, 2013                     $ 1,500,000    $  1,018,440
- ---------------------------------------------------------------------------------------------------------------------------------
Transportation - Special   Commonwealth of Puerto Rico, Highway & Transportation Authority Rev.,
Tax - 2.2%                 "J", MBIA, 5%, 2029                                                        $ 1,210,000    $  1,263,893
                           Virginia Transportation Board Rev. (U.S. Route 58), "B", 5.125%, 2006 (c)    4,000,000       4,047,400
                           Virginia Commonwealth Board Program (Oak Grove Connector), "A",
                           5.25%, 2022                                                                  1,500,000       1,525,440
                                                                                                                     ------------
                                                                                                                     $  6,836,733
- ---------------------------------------------------------------------------------------------------------------------------------
Universities - Colleges -  Amherst, VA, Industrial Development Authority Rev. (Educational
2.7%                       Facilities Sweet Briar), 5%, 2026                                          $ 1,770,000    $  1,801,559
                           Danville, VA, Industrial Development Authority, Educational
                           Facilities Rev. (Averett University), 6%, 2022                                 500,000         519,140
                           Loudoun County, VA, Industrial Development Authority, University
                           Facilities Rev. (George Washington University), 6.25%, 2012                  2,710,000       2,714,824
                           Virginia College Building Authority, Educational Facilities Rev.
                           (Washington & Lee University), MBIA, 5.25%, 2031                             1,000,000       1,115,740
                           Virginia College Building Authority, Educational Facilities Rev.
                           (Hampton University), 6%, 2010 (c)                                           1,000,000       1,092,430
                           Virginia College Building Authority, Educational Facilities Rev.
                           (Regent University), MBIA, 5.125%, 2031                                      1,000,000       1,037,480
                                                                                                                     ------------
                                                                                                                     $  8,281,173
- ---------------------------------------------------------------------------------------------------------------------------------
Utilities - Investor       Chesapeake, VA, Industrial Development Authority Rev. (Virginia
Owned - 2.2%               Electric & Power Co.), 5.25%, 2008                                         $   750,000    $    757,717
                           Halifax County, VA, Industrial Development Authority (Old Dominion
                           Electric Cooperative), AMBAC, 5.625%, 2028                                   3,000,000       3,212,850
                           Mecklenburg County, VA, Industrial Development Authority Rev. (UAE
                           Mecklenburg LP), 6.5%, 2017                                                    700,000         766,003
                           Pittsylvania County, VA, Industrial Development Authority Rev.,
                           7.5%, 2014                                                                   2,000,000       2,036,000
                                                                                                                     ------------
                                                                                                                     $  6,772,570
- ---------------------------------------------------------------------------------------------------------------------------------
Utilities - Municipal
Owned - 5.4%               Bristol, VA, Utility Systems Rev., FSA, ETM, 5.75%, 2016 (c)               $   240,000    $    273,358
                           Guam Power Authority Rev., RITES, AMBAC, 6.565%, 2015 (z)(v)                 1,010,000       1,127,322
                           Puerto Rico Electric Power Authority Rev., RITES, FSA,
                           7.599%, 2017 (z)(v)                                                          2,500,000       2,949,450
                           Puerto Rico Electric Power Authority Rev., RITES, FSA,
                           7.349%, 2019 (z)(v)                                                          1,270,000       1,485,951
                           Puerto Rico Electric Power Authority Rev., RITES, FSA,
                           6.699%, 2020 (z)(v)                                                          1,250,000       1,435,000
                           Richmond, VA, Public Utilities Rev., FSA, 5%, 2033                           6,950,000       7,149,535
                           Richmond, VA, Public Utilities Rev., FSA, 5%, 2035                           1,000,000       1,038,070
                           Richmond, VA, Public Utilities Rev., FSA, "N", 5%, 2027                      1,000,000       1,043,230
                                                                                                                     ------------
                                                                                                                     $ 16,501,916
- ---------------------------------------------------------------------------------------------------------------------------------
Water & Sewer Utility      Fairfax County, VA, Water Authority Rev., 5%, 2026                         $ 1,000,000    $  1,044,840
Revenue - 10.1%            Fairfax County, VA, Water Authority Rev., 5%, 2027                           3,155,000       3,292,148
                           Fairfax County, VA, Water Authority Rev., 5%, 2027                           3,210,000       3,344,724
                           Fairfax County, VA, Water Authority Rev., 5%, 2032                           2,000,000       2,068,960
                           Fairfax County, VA, Water Authority Rev., "A", 5%, 2030                      2,000,000       2,094,340
                           Loudoun County, VA, Sanitation Authority Water & Sewer Rev., 5%, 2033        3,000,000       3,115,980
                           Prince William County, VA, Water & Sewer Rev., FGIC, 5.5%, 2009 (c)          2,000,000       2,129,740
                           Puerto Rico Aqueduct & Sewer Authority Rev., ETM, 10.25%, 2009 (c)             195,000         216,520
                           Spotsylvania County, VA, Water & Sewer Rev., FSA, 5%, 2022                   1,450,000       1,504,549
                           Virginia Beach, VA, Storm Water Utilities Rev., 6%, 2020                     1,000,000       1,097,760
                           Virginia Resources Authority Sewer Systems Rev. (Hopewell Regional
                           Wastewater), 5.75%, 2021                                                     1,335,000       1,447,594
                           Virginia Resources Authority, Clean Water Rev., 5.4%, 2010 (c)               1,135,000       1,213,644
                           Virginia Resources Authority, Clean Water Rev., 6%, 2017                     2,750,000       3,004,623
                           Virginia Resources Authority, Infrastructure Rev., "A", MBIA, 5.5%, 2019     1,600,000       1,719,936
                           Virginia Resources Authority, Infrastructure Rev., "A", MBIA, 5.5%, 2020     1,690,000       1,815,077
                           Virginia State Resources Authority, Water & Sewer Systems Rev.
                           (Tuckahoe Creek Project), 5%, 2035                                           2,015,000       2,090,240
                                                                                                                     ------------
                                                                                                                     $ 31,200,675
- ---------------------------------------------------------------------------------------------------------------------------------
  TOTAL MUNICIPAL BONDS (IDENTIFIED COST, $285,595,692)                                                              $299,429,675
- ---------------------------------------------------------------------------------------------------------------------------------

Floating Rate Demand Notes - 1.5%
- ---------------------------------------------------------------------------------------------------------------------------------
                           Allegheny County, PA, Hospital Development Authority Rev.
                           (Presbyterian University Hospital), "A", 3.22%, due 4/06/06                $   100,000    $    100,000
                           Allegheny County, PA, Hospital Development Authority Rev.
                           (Presbyterian University Hospital), "B", 3.22%, due 4/06/06                    600,000         600,000
                           Allegheny County, PA, Hospital Development Authority Rev.
                           (Presbyterian University Hospital), "C", 3.22%, due 4/06/06                    500,000         500,000
                           Allegheny County, PA, Hospital Development Authority Rev.
                           (Presbyterian University Hospital), "D", 3.22%, due 4/06/06                    600,000         600,000
                           Burke County, GA, Development Authority Pollution Control Rev.
                           (Oglethorpe Power Corp.), "A", 3.22%, due 4/05/06                              300,000         300,000
                           Georgia Municipal Electric Authority, 3.05%, due 4/05/06                       800,000         800,000
                           Jefferson County, AL, Sewer Rev., Capital Improvement Warrants, "A",
                           3.22%, due 4/06/06                                                           1,000,000       1,000,000
                           Jefferson County, AL, Sewer Rev., Warrants, "B-4", 3.22%, due 4/06/06          300,000         300,000
                           Massachusetts Water Resources Authority, 3.17%, due 4/05/06                    100,000         100,000
                           Missouri Health & Educational Facilities Authority Rev., Medical
                           Research Facilities (Stowers Institute), 3.22%, due 4/06/06                    200,000         200,000
                           Sevier County, TN, Public Building Authority, 3.19%, due 4/06/06                70,000          70,000
- ---------------------------------------------------------------------------------------------------------------------------------
  TOTAL FLOATING RATE DEMAND NOTES, AT IDENTIFIED COST                                                               $  4,570,000
- ---------------------------------------------------------------------------------------------------------------------------------
  TOTAL INVESTMENTS (IDENTIFIED COST, $290,165,692)                                                                  $303,999,675
- ---------------------------------------------------------------------------------------------------------------------------------
Other Assets, Less Liabilities - 1.1%                                                                                   3,513,045
- ---------------------------------------------------------------------------------------------------------------------------------
  NET ASSETS - 100.0%                                                                                                $307,512,720
- ---------------------------------------------------------------------------------------------------------------------------------


INTEREST RATE SWAPS

                             NOTIONAL PRINCIPAL                                                                    UNREALIZED
                                 AMOUNT OF               CASH FLOWS PAID                  CASH FLOWS              APPRECIATION
EXPIRATION      CURRENCY          CONTRACT                 BY THE FUND               RECEIVED BY THE FUND        (DEPRECIATION)
- -------------------------------------------------------------------------------------------------------------------------------
                                                                                                     
12/01/07          USD           $6,000,000               Fixed - 3 Year                Floating - 7 Day             $ 82,400
                                                     BMA Swap Index (2.795%)            BMA Swap Index
- -------------------------------------------------------------------------------------------------------------------------------
 8/02/21          USD            3,000,000               Fixed - 15 Year               Floating - 7 Day               47,944
                                                     BMA Swap Index (4.011%)            BMA Swap Index
- -------------------------------------------------------------------------------------------------------------------------------
 9/13/26          USD            3,000,000             Floating - 3 Month               Fixed - 20 Year              (46,489)
                                                        LIBOR Swap Index           LIBOR Swap Index (5.363%)
- -------------------------------------------------------------------------------------------------------------------------------
 7/11/36          USD            3,000,000              Floating - 7 Day                Fixed - 30 Year              (96,826)
                                                         BMA Swap Index             BMA Swap Index (4.127%)
- -------------------------------------------------------------------------------------------------------------------------------
                                                                                                                    $(12,971)
                                                                                                                    ========

At March 31, 2006 the fund had sufficient cash and/or securities to cover any
commitments under these derivative contracts.

SEE PORTFOLIO FOOTNOTES AND NOTES TO FINANCIAL STATEMENTS



PORTFOLIO OF INVESTMENTS - 3/31/06     MFS(R) WEST VIRGINIA MUNICIPAL BOND FUND

The Portfolio of Investments is a complete list of all securities owned by your
fund. It is categorized by broad-based asset classes.



Municipal Bonds - 97.7%
- ---------------------------------------------------------------------------------------------------------------------------------
                           ISSUER                                                                     SHARES/PAR      VALUE ($)
- ---------------------------------------------------------------------------------------------------------------------------------
                                                                                                            
General Obligations -      Charleston, WV, Public Improvements, 7.2%, 2009                            $ 1,140,000    $  1,255,357
General Purpose - 21.8%    Commonwealth of Puerto Rico, Public Improvement, 5.25%, 2023                 1,500,000       1,562,160
                           Commonwealth of Puerto Rico, Public Improvement, "A", CIFG, 5%, 2034         2,000,000       2,062,520
                           Commonwealth of Puerto Rico, Public Improvement, RITES, MBIA,
                           7.599%, 2019 (z)(v)                                                          3,000,000       3,463,440
                           Puerto Rico Commonwealth Public Improvement, "A", CIFG, 5%, 2025             1,000,000       1,048,770
                           Puerto Rico Public Buildings Authority Rev. (State Office Building),
                           "F", XLCA, 5.25%, 2025                                                       2,000,000       2,224,520
                           Puerto Rico Public Buildings Authority Rev., "B", 5.25%, 2007 (c)            3,115,000       3,223,184
                           West Virginia State, Highway Improvements, FGIC, 5.625%, 2010 (c)            2,000,000       2,162,500
                           West Virginia State, Public Improvements, FGIC, 5%, 2021                     4,000,000       4,107,880
                           West Virginia State, Sewer Improvements, FGIC, 5.5%, 2017                    2,565,000       2,721,952
                           West Virginia State, Water Utility Improvements, FGIC, 5.25%, 2026           8,000,000       8,229,280
                                                                                                                     ------------
                                                                                                                     $ 32,061,563
- ---------------------------------------------------------------------------------------------------------------------------------
General Obligations -      Brooke County, WV, Board of Education, FGIC, 5%, 2016                      $ 1,390,000    $  1,446,726
Improvement - 1.7%         Puerto Rico, Municipal Finance Agency, RITES, FSA,
                           7.101%, 2017 (z)(v)                                                            900,000       1,022,076
                                                                                                                     ------------
                                                                                                                     $  2,468,802
- ---------------------------------------------------------------------------------------------------------------------------------
General Obligations -      Jefferson County, WV, Board of Education, FGIC, ETM, 6.85%, 2009 (c)       $ 1,680,000    $  1,842,691
Schools - 5.0%             Monongalia County, WV, Board of Education, MBIA, 5%, 2027                    2,350,000       2,447,313
                           Monongalia County, WV, Board of Education, MBIA, 5%, 2033                    3,000,000       3,108,360
                                                                                                                     ------------
                                                                                                                     $  7,398,364
- ---------------------------------------------------------------------------------------------------------------------------------
Healthcare Revenue -       Kanawha County, WV, Building Commission Rev. (St. Francis Hospital),
Hospitals - 5.3%           ETM, 7.5%, 2007 (c)                                                        $    60,000    $     62,552
                           Monongalia County, WV, Building Community Hospital Rev. (Monongalia
                           General Hospital), "A", 5.25%, 2035                                          1,000,000       1,012,330
                           Ohio County, WV, County Commission Health System Rev. (Ohio Valley
                           Medical Center), 5.75%, 2013                                                   750,000         713,415
                           Randolph County, WV, Community Health Systems Rev. (Davis Health
                           Systems, Inc.), FSA, 5.2%, 2021                                              1,000,000       1,059,600
                           Weirton, WV, Municipal Hospital Building, Commission Rev. (Weirton
                           Hospital Medical Center), 6.375%, 2031                                         600,000         602,898
                           West Virginia Hospital Finance Authority, Hospital Rev. (Charleston
                           Area Medical Center), ETM, 6.5%, 2023 (c)                                    2,000,000       2,408,780
                           West Virginia Hospital Finance Authority, Hospital Rev. (Fairmont
                           General Hospital), 6.625%, 2019                                                300,000         300,042
                           West Virginia Hospital Finance Authority, Hospital Rev. (General
                           Division Medical Office Building), 7.25%, 2014                               1,645,000       1,647,912
                                                                                                                     ------------
                                                                                                                     $  7,807,529
- ---------------------------------------------------------------------------------------------------------------------------------
Healthcare Revenue -       Harrison County, WV, Building Commission Rev. (Maplewood Retirement),
Long Term Care - 1.9%      AMBAC, 5.25%, 2008 (c)                                                     $ 2,625,000    $  2,757,877
- ---------------------------------------------------------------------------------------------------------------------------------
Industrial Revenue -       Virgin Islands Public Finance Authority, Refinery Facilities Rev.
Other - 0.2%               (Hovensa Refinery), 5.875%, 2022                                           $   350,000    $    369,082
- ---------------------------------------------------------------------------------------------------------------------------------
Multi-Family Housing       Webster County, WV, Housing Development Rev. (Circlebrook), FHA,
Revenue - 0.1%             6.35%, 2008                                                                $   155,000    $    155,338
- ---------------------------------------------------------------------------------------------------------------------------------
Parking - 0.9%             West Virginia Economic Development Authority, Auto Lease Rev.
                           (Capitol Parking Garage), AMBAC, 5.8%, 2020                                $ 1,260,000    $  1,356,579
- ---------------------------------------------------------------------------------------------------------------------------------
Single Family Housing -    Charlestown, WV, Residential Mortgage Rev., 6.2%, 2011                     $    75,000    $     75,211
Local - 0.9%               Kanawha County, WV, 0%, 2014 (c)                                             1,920,000       1,212,346
                                                                                                                     ------------
                                                                                                                     $  1,287,557
- ---------------------------------------------------------------------------------------------------------------------------------
Single Family Housing -    Puerto Rico Housing Finance Authority Home Mortgage Rev., Mortgage
State - 1.8%               Backed Securities, "A", 4.75%, 2023                                        $   690,000    $    690,973
                           West Virginia State, Housing Development Fund Rev., 5.25%, 2018              1,000,000       1,008,700
                           West Virginia State, Housing Development Fund Rev., 5.3%, 2023                 985,000         992,299
                                                                                                                     ------------
                                                                                                                     $  2,691,972
- ---------------------------------------------------------------------------------------------------------------------------------
State & Local              Huntington, WV, Municipal Development Authority, Rev., MBIA, 5.1%, 2018    $ 1,740,000    $  1,802,431
Agencies - 20.3%           West Virginia Building Commission, "A", RITES, AMBAC,
                           7.475%, 2018 (z)(v)                                                          4,520,000       5,463,866
                           West Virginia Building Commission, "B", RITES, AMBAC,
                           7.475%, 2018 (z)(v)                                                          1,250,000       1,511,025
                           West Virginia Building Commission, Lease Rev., MBIA, ETM, 0%, 2007 (c)       3,150,000       3,010,140
                           West Virginia Building Commission, Lease Rev., MBIA, ETM, 0%, 2008 (c)       3,050,000       2,808,410
                           West Virginia Building Commission, Lease Rev., MBIA, ETM, 0%, 2009 (c)       1,000,000         883,810
                           West Virginia Economic Development Authority (Correctional Juvenile &
                           Public), 5%, 2020                                                            1,000,000       1,036,970
                           West Virginia Economic Development Authority (Correctional Juvenile &
                           Public), MBIA, 5.5%, 2013                                                    1,000,000       1,091,770
                           West Virginia Economic Development Authority (Correctional Juvenile &
                           Public), MBIA, 5%, 2026                                                      2,100,000       2,173,899
                           West Virginia Economic Development Authority State Office Building,
                           "B", MBIA, 5.25%, 2030                                                       1,355,000       1,427,032
                           West Virginia Economic Development Authority, Auto Lease Rev., 5.2%, 2033    1,000,000       1,036,550
                           West Virginia Economic Development Authority, Department of
                           Environmental Protection, 5.5%, 2022                                         2,000,000       2,153,160
                           West Virginia Economic Development Authority, Lease Rev. (State
                           Office Building), "B", MBIA, 5.25%, 2025                                       645,000         683,190
                           West Virginia Hospital Finance Authority, Hospital Rev. (Veterans
                           Nursing Home), 5.5%, 2034                                                    1,000,000       1,010,230
                           West Virginia Hospital Finance Authority, Hospital Rev. (West
                           Virginia University Hospital), AMBAC, 5%, 2018                               1,000,000       1,020,100
                           West Virginia School Building Authority, Miscellaneous Tax Rev., FSA,
                           5.25%, 2021                                                                  2,550,000       2,646,976
                                                                                                                     ------------
                                                                                                                     $ 29,759,559
- ---------------------------------------------------------------------------------------------------------------------------------
Tax - Other - 0.4%         Virgin Islands, Public Finance Authority Rev., "A", 5.625%, 2025           $   500,000    $    518,415
- ---------------------------------------------------------------------------------------------------------------------------------
Tobacco - 0.5%             Children's Trust Fund, Tobacco Settlement Rev., Puerto Rico, 5.375%, 2033  $   675,000    $    691,949
- ---------------------------------------------------------------------------------------------------------------------------------
Toll Roads - 3.4%          West Virginia Parkways, Economic Development & Tourism Authority,
                           Rev., FGIC, ETM, 0%, 2006 (c)                                              $ 2,500,000    $  2,479,275
                           West Virginia Parkways, Economic Development & Tourism Authority,
                           Rev., FGIC, ETM, 0%, 2007 (c)                                                2,000,000       1,911,200
                           West Virginia Parkways, Economic Development & Tourism Authority,
                           Rev., FGIC, ETM, 0%, 2008 (c)                                                  610,000         561,682
                                                                                                                     ------------
                                                                                                                     $  4,952,157
- ---------------------------------------------------------------------------------------------------------------------------------
Transportation - Special   Commonwealth of Puerto Rico, Highway & Transportation Authority Rev.,
Tax - 1.3%                 "J", MBIA, 5%, 2029                                                        $ 1,820,000    $  1,901,063
- ---------------------------------------------------------------------------------------------------------------------------------
Universities -             Commonwealth of Puerto Rico, Industrial Tourist Education (University
Colleges - 23.2%           Plaza), MBIA, 5%, 2021                                                     $ 1,270,000    $  1,318,984
                           Fairmont State College, West Virginia, College Rev., "A", FGIC, 5%, 2032     3,210,000       3,307,070
                           Fairmont State College, West Virginia, College Rev., FGIC, 5.25%, 2022       5,130,000       5,443,392
                           Fairmont State College, West Virginia, College Rev., FGIC, 5.375%, 2027      1,500,000       1,603,725
                           Fairmont State College, West Virginia, College Rev., FGIC, 5%, 2032          2,250,000       2,318,040
                           Shepherd University Board of Governors, West Virginia Rev. (Residence
                           Facilities Projects), MBIA, 5%, 2035                                         1,675,000       1,734,630
                           State of West Virginia, Department of Higher Education (Marshall
                           University), FGIC, 5.25%, 2019                                               1,680,000       1,768,402
                           State of West Virginia, Department of Higher Education (Student Union
                           James C. Wilson College), 5.125%, 2022                                       1,500,000       1,576,935
                           State of West Virginia, Department of Higher Education, "B", FGIC,
                           5%, 2029                                                                     1,000,000       1,035,950
                           State of West Virginia, Department of Higher Education, MBIA, 5%, 2010       1,345,000       1,409,291
                           West Virginia University, Dormitory Rev., AMBAC, 5%, 2007 (c)                2,000,000       2,062,840
                           West Virginia University, University Systems Rev. (Marshall
                           University), FGIC, 6%, 2020                                                  2,705,000       2,947,666
                           West Virginia University, University Systems Rev. (West Virginia
                           University), MBIA, 5.5%, 2020                                                1,700,000       1,914,693
                           West Virginia, Higher Education Facilities Rev., "B", FGIC, 5%, 2034         4,395,000       4,535,113
                           West Virginia, West Virginia University Improvement Rev., "C", FGIC,
                           5%, 2028                                                                     1,000,000       1,034,240
                                                                                                                     ------------
                                                                                                                     $ 34,010,971
- ---------------------------------------------------------------------------------------------------------------------------------
Universities -             West Liberty State College, Capital Improvement, 6%, 2028                  $   500,000    $    529,420
Dormitories - 0.4%
- ---------------------------------------------------------------------------------------------------------------------------------
Utilities - Investor       Mason County, WV, Pollution Control Rev. (Appalachian Power Co.),
Owned - 0.5%               5.5%, 2022                                                                 $   750,000    $    766,357
- ---------------------------------------------------------------------------------------------------------------------------------
Water & Sewer Utility      Fairmont, WV, Waterworks Rev., AMBAC, 5.25%, 2022                          $   200,000    $    222,278
Revenue - 8.1%             Parkersburg, WV, Waterworks & Sewer Series A, "N", FGIC, 4.5%, 2022          1,000,000       1,003,720
                           West Virginia Water Development Authority Loan Program, "B", AMBAC,
                           4.75%, 2035                                                                    500,000         501,890
                           West Virginia Water Development Authority Rev., AMBAC, 6.25%, 2020           1,000,000       1,090,410
                           West Virginia Water Development Authority Rev., AMBAC, 5.25%, 2023           1,000,000       1,065,270
                           West Virginia Water Development Authority Rev., AMBAC, 5%, 2026              2,850,000       2,966,793
                           West Virginia Water Development Authority Rev., ETM, 7.1%, 2009 (c)            105,000         111,794
                           West Virginia Water Development Authority, "A", FGIC, 5%, 2033               1,500,000       1,556,580
                           West Virginia Water Development Authority, Infrastructure Rev., "A",
                           AMBAC, 5%, 2033                                                              1,950,000       2,016,768
                           West Virginia Water Development Authority, Infrastructure Rev., FSA,
                           5.5%, 2018                                                                     390,000         413,162
                           West Virginia Water Development Authority, Infrastructure Rev., FSA,
                           5.5%, 2019                                                                     895,000         945,899
                                                                                                                     ------------
                                                                                                                     $ 11,894,564
- ---------------------------------------------------------------------------------------------------------------------------------
  TOTAL MUNICIPAL BONDS (IDENTIFIED COST, $136,466,802)                                                              $143,379,118
- ---------------------------------------------------------------------------------------------------------------------------------
Floating Rate Demand Notes - 0.7%
- ---------------------------------------------------------------------------------------------------------------------------------
                           Allegheny County, PA, Hospital Development Authority Rev.
                           (Presbyterian University Hospital), "C", 3.22%, due 4/06/06                $   100,000    $    100,000
                           Allegheny County, PA, Hospital Development Authority Rev.
                           (Presbyterian University Hospital), "D", 3.22%, due 4/06/06                    400,000         400,000
                           New York City, NY, Municipal Water & Sewer Finance Authority Rev.,
                           3.09%, due 4/03/06                                                             600,000         600,000
- ---------------------------------------------------------------------------------------------------------------------------------
  TOTAL FLOATING RATE DEMAND NOTES, AT IDENTIFIED COST                                                               $  1,100,000
- ---------------------------------------------------------------------------------------------------------------------------------
  TOTAL INVESTMENTS (IDENTIFIED COST, $137,566,802)                                                                  $144,479,118
- ---------------------------------------------------------------------------------------------------------------------------------
Other Assets, Less Liabilities - 1.6%                                                                                   2,324,643
- ---------------------------------------------------------------------------------------------------------------------------------
  NET ASSETS - 100.0%                                                                                                $146,803,761
- ---------------------------------------------------------------------------------------------------------------------------------


INTEREST RATE SWAPS

                             NOTIONAL PRINCIPAL                                                                    UNREALIZED
                                 AMOUNT OF               CASH FLOWS PAID                  CASH FLOWS              APPRECIATION
EXPIRATION      CURRENCY          CONTRACT                 BY THE FUND               RECEIVED BY THE FUND        (DEPRECIATION)
- -------------------------------------------------------------------------------------------------------------------------------

                                                                                                     
12/01/07          USD           $3,000,000               Fixed - 3 Year                Floating - 7 Day             $ 41,200
                                                     BMA Swap Index (2.795%)            BMA Swap Index
- -------------------------------------------------------------------------------------------------------------------------------
 6/16/16          USD            3,000,000               Fixed - 10 Year               Floating - 7 Day               7,728
                                                     BMA Swap Index (3.977%)            BMA Swap Index
- -------------------------------------------------------------------------------------------------------------------------------
 6/15/18          USD            3,000,000               Fixed - 12 Year               Floating - 7 Day              15,791
                                                     BMA Swap Index (4.019%)            BMA Swap Index
- -------------------------------------------------------------------------------------------------------------------------------
 6/22/18          USD            3,000,000               Fixed - 12 Year               Floating - 7 Day              57,092
                                                     BMA Swap Index (3.861%)            BMA Swap Index
- -------------------------------------------------------------------------------------------------------------------------------
 9/13/26          USD            1,500,000             Floating - 3 Month               Fixed - 20 Year             (23,244)
                                                        LIBOR Swap Index           LIBOR Swap Index (5.363%)
- -------------------------------------------------------------------------------------------------------------------------------
                                                                                                                   $ 98,567
                                                                                                                   ========

At March 31, 2006 the fund had sufficient cash and/or securities to cover any
commitments under these derivative contracts.

The following abbreviations are used in the Portfolio of Investments and are
defined:

BMA                    Bond Market Assn.
COP                    Certificate of Participation
ETM                    Escrowed to Maturity
LIBOR                  London Interbank Offered Rate
LOC                    Letter of Credit

Insurers                                                               Inverse Floaters
- ----------------------------------------------------------------------------------------------------------------------------
AMBAC                  AMBAC Indemnity Corp.                           RITES           Residual Interest Tax-Exempt Security
ASST GTY               Asset Guaranty Insurance Co.                    ROLS            Residual Options Longs
CIFG                   CDS IXIS Financial Guaranty
CONNIE LEE             Connie Lee Insurance Co.
FGIC                   Financial Guaranty Insurance Co.
FHA                    Federal Housing Administration
FNMA                   Federal National Mortgage Assn.
FSA                    Financial Security Assurance, Inc.
GNMA                   Government National Mortgage Assn.
MBIA                   MBIA Insurance Corp.
XLCA                   XL Capital Insurance Co.

Portfolio Footnotes:

(c)  Refunded bond.
(v)  Inverse floating rate security.
(z)  Restricted securities (excluding 144A issues) are not registered under the Securities Act of 1933 and are subject to legal or
     contractual restrictions on resale. These securities generally may be resold in transactions exempt from registration or to
     the public if the securities are registered. Disposal of these securities may involve time-consuming negotiations and prompt
     sale at an acceptable price may be difficult. The funds hold the following restricted securities:



                                                                                                                          TOTAL %
                                                                                 ACQUISITION  ACQUISITION        CURRENT   OF NET
FUND              SECURITY                                                              DATE         COST   MARKET VALUE   ASSETS
- ---------------------------------------------------------------------------------------------------------------------------------

                                                                                                              
Mississippi       Commonwealth of Puerto Rico, ROLS, FGIC, 7.763%, 2016              8/05/02   $4,023,905   $ 3,842,778
Fund              Guam Power Authority Rev., RITES, AMBAC, 6.565%, 2013              5/20/99    1,072,720     1,118,180
                  Puerto Rico Municipal Finance Agency, RITES, FSA, 7.101%,
                  2017                                                               1/06/00      703,620       851,730
                  Puerto Rico Public Finance Corp., RITES, AMBAC, 6.826%, 2013       9/30/99      509,110       591,270
- ---------------------------------------------------------------------------------------------------------------------------------
                  Total Restricted Securities                                                               $ 6,403,958      7.4%
                                                                                                            ===========      ===

New York          Commonwealth of Puerto Rico, ROLS, XLCA, 7.693%, 2017             10/22/01   $1,634,526   $ 1,656,585
Fund              Guam Power Authority Rev., RITES, "B-1", AMBAC, 6.565%, 2014       5/20/99      531,950       557,410
                  Niagra Falls, NY, Bridge Commission Toll Rev., RITES, FGIC,
                  6.53%, 2015                                                        5/21/99    3,755,920     4,055,940
                  Triborough Bridge & Tunnel Authority Rev., NY, RITES, ETM,
                  7.745%, 2017                                                       4/18/00    5,018,300     6,042,800
- ---------------------------------------------------------------------------------------------------------------------------------
                  Total Restricted Securities                                                               $12,312,735      7.4%
                                                                                                            ===========      ===

North Carolina    Commonwealth of Puerto Rico, Highway & Transportation              2/26/99   $7,037,419   $ 7,335,251
Fund              Authority Rev., RITES, FSA, 8.076%, 2018
                  North Carolina Eastern Municipal Power Agency, RITES, AMBAC,
                  8.042%, 2018                                                       5/26/00    6,552,130     8,623,940
                  North Carolina Municipal Power Agency, ROLS, Catawaba
                  Electric Rev., MBIA, 7.236%, 2019                                  3/03/03    5,726,600     5,652,300
                  North Carolina Municipal Power Agency, ROLS, Catawaba
                  Electric Rev., MBIA, 7.236%, 2020                                  3/03/03    3,376,680     3,384,120
                  Puerto Rico Public Finance Corp., RITES, AMBAC, 7.535%, 2016       9/30/99    1,471,890     1,820,220
- -----------------------------------------------------------------------------------------------------------------------------------
                  Total Restricted Securities                                                               $26,815,831      8.0%
                                                                                                            ===========      ===

Pennsylvania      Commonwealth of Puerto Rico Highway & Transportation               4/25/03   $1,969,560   $ 1,911,120
Fund              Authority, ROLS, MBIA, 7.763%, 2020
                  Commonwealth of Puerto Rico, ROLS, FGIC, 7.763%, 2015              8/05/02    1,292,920     1,224,780
                  Commonwealth of Puerto Rico, ROLS, XLCA, 7.693%, 2017             10/22/01    1,210,760     1,227,100
                  Guam Power Authority Rev., RITES, AMBAC, 6.565%, 2014              5/20/99    2,308,663     2,419,159
                  Puerto Rico Public Finance Corp., RITES, AMBAC, 6.826%, 2013       9/30/99      509,110       591,270
- -----------------------------------------------------------------------------------------------------------------------------------
                  Total Restricted Securities                                                               $ 7,373,429      6.6%
                                                                                                            ===========      ===

South Carolina    Commonwealth of Puerto Rico, RITES, ETM, 7.099%, 2018             10/05/00   $2,068,200   $ 2,310,400
Fund              Commonwealth of Puerto Rico, RITES, ETM, 7.099%, 2019             10/05/00    1,795,115     2,018,590
                  Commonwealth of Puerto Rico, RITES, MBIA, 7.599%, 2020             3/30/00    2,044,880     2,308,960
                  Commonwealth of Puerto Rico, RITES, FSA, 8.108%, 2016              1/06/00      883,592       991,678
                  Puerto Rico Electric Power Authority, RITES, FSA,
                  6.559%, 2015                                                       9/16/99      976,500     1,069,460
                  Puerto Rico Public Finance Corp., RITES, AMBAC, 6.826%, 2013       9/30/99    1,400,053     1,625,993
                  Puerto Rico Public Finance Corp., RITES, AMBAC, 6.826%, 2019       3/31/99    1,470,326     1,611,818
- ---------------------------------------------------------------------------------------------------------------------------------
                  Total Restricted Securities                                                               $11,936,899      7.6%
                                                                                                            ===========      ===

Virginia          Guam Power Authority Rev., RITES, AMBAC, 6.565%, 2015              5/20/99   $1,058,642   $ 1,127,322
Fund              Puerto Rico Electric Power Authority Rev., RITES, FSA,             8/28/00    2,770,600     2,949,450
                  7.599%, 2017
                  Puerto Rico Electric Power Authority Rev., RITES, FSA,
                  7.349%, 2019                                                       8/28/00    1,345,006     1,485,951
                  Puerto Rico Electric Power Authority Rev., RITES, FSA,
                  6.699%, 2020                                                       8/28/00    1,240,075     1,435,000
                  Puerto Rico Municipal Finance Agency, RITES, FSA,
                  8.108%, 2016                                                       1/06/00    1,145,670     1,289,181
                  Puerto Rico Municipal Finance Agency, RITES, FSA,
                  7.101%, 2017                                                       1/06/00      576,968       698,419
                  Puerto Rico Public Finance Corp., RITES, AMBAC, 6.826%, 2013       9/30/99    2,036,440     2,365,080
                  Puerto Rico Public Finance Corp., RITES, AMBAC, 6.826%, 2016       3/31/99      569,030       606,740
                  Virginia Resources Authority Rev., ROLS, 6.729%, 2021             12/01/03    1,508,372     1,534,727
                  Virginia Resources Authority Rev., ROLS, 6.729%, 2023             12/01/03    1,612,568     1,658,198
                  Virginia Resources Authority Rev., ROLS, 6.729%, 2033             12/01/03    2,586,957     2,682,437
- -----------------------------------------------------------------------------------------------------------------------------------
                  Total Restricted Securities                                                               $17,832,505      5.8%
                                                                                                            ===========      ===

West Virginia     Commonwealth of Puerto Rico, Public Improvement, RITES, MBIA,      3/30/00   $3,090,720   $ 3,463,440
Fund              7.599%, 2019
                  Puerto Rico, Municipal Finance Agency, RITES, FSA,
                  7.101%, 2017                                                       1/06/00      844,344     1,022,076
                  West Virginia Building Commission, "A", RITES, AMBAC,
                  7.475%, 2018                                                       5/05/99    4,888,561     5,463,866
                  West Virginia Building Commission, "B", RITES, AMBAC,
                  7.475%, 2018                                                       5/05/99    1,351,925     1,511,025
- ---------------------------------------------------------------------------------------------------------------------------------
                  Total Restricted Securities                                                               $11,460,407      7.8%
                                                                                                            ===========      ===

SEE NOTES TO FINANCIAL STATEMENTS



FINANCIAL STATEMENTS      STATEMENT OF ASSETS AND LIABILITIES

This statement represents your fund's balance sheet, which details the assets
and liabilities composing the total value of your fund.



                                                                   MISSISSIPPI        NEW YORK    NORTH CAROLINA    PENNSYLVANIA
For year ended 3/31/06                                                    FUND            FUND              FUND            FUND

                                                                                                        
ASSETS
- --------------------------------------------------------------------------------------------------------------------------------
Investments -
  Identified cost                                                  $81,380,738    $153,219,624      $310,188,695    $105,146,535
  Unrealized appreciation (depreciation)                             3,228,375       9,714,857        18,421,961       3,935,822
- --------------------------------------------------------------------------------------------------------------------------------
Total investments, at value                                        $84,609,113    $162,934,481      $328,610,656    $109,082,357
Cash                                                                    53,828          57,731            93,330           5,497
Receivable for investments sold                                        431,255         353,308         1,631,327          40,000
Receivable for fund shares sold                                         76,679          76,006            49,621         288,684
Interest receivable                                                  1,247,192       2,520,587         5,344,196       1,671,290
Receivable from investment adviser                                          --              --                --         328,082
Unrealized appreciation on interest rate swaps                          82,707         149,241           276,446         133,261
- --------------------------------------------------------------------------------------------------------------------------------
Total assets                                                       $86,500,774    $166,091,354      $336,005,576    $111,549,171
- --------------------------------------------------------------------------------------------------------------------------------

LIABILITIES
- --------------------------------------------------------------------------------------------------------------------------------
Distributions payable                                                 $139,233        $222,243          $399,413        $135,535
Payable for fund shares reacquired                                     175,578         148,117           451,404         222,027
Unrealized depreciation on interest rate swaps                          44,738          32,556            67,442          21,704
Payable to affiliates -
  Management fee                                                           708           1,359             2,750             910
  Shareholder servicing costs                                            7,105          13,134            21,244           7,366
  Distribution and service fees                                            487           2,068             4,362          12,009
  Administrative services fee                                               47              64               129              61
Payable for independent trustees' compensation                          10,213          13,428            16,565           9,952
Accrued expenses and other liabilities                                  61,145          73,094            85,568          68,055
- --------------------------------------------------------------------------------------------------------------------------------
Total liabilities                                                     $439,254        $506,063        $1,048,877        $477,619
- --------------------------------------------------------------------------------------------------------------------------------
Net assets                                                         $86,061,520    $165,585,291      $334,956,699    $111,071,552
- --------------------------------------------------------------------------------------------------------------------------------

NET ASSETS CONSIST OF
- --------------------------------------------------------------------------------------------------------------------------------
Paid-in capital                                                    $83,246,841    $155,568,821      $316,806,089    $107,409,795
Unrealized appreciation (depreciation) on investments                3,266,344       9,831,542        18,630,965       4,047,379
Accumulated net realized gain (loss) on investments                   (329,133)        691,315           105,034        (175,233)
Accumulated distributions in excess of net investment income          (122,532)       (506,387)         (585,389)       (210,389)
- --------------------------------------------------------------------------------------------------------------------------------
Net assets                                                         $86,061,520    $165,585,291      $334,956,699    $111,071,552
- --------------------------------------------------------------------------------------------------------------------------------




Statement of Assets and Liabilities - continued



                                                                   MISSISSIPPI        NEW YORK    NORTH CAROLINA    PENNSYLVANIA
                                                                          FUND            FUND              FUND            FUND

                                                                                                        
Net Assets
Class A                                                            $75,596,857    $118,475,660      $270,123,603    $ 72,429,191
Class B                                                             10,464,663      30,045,829        32,609,959      38,642,361
Class C                                                                   --        17,063,802        32,223,137            --
- --------------------------------------------------------------------------------------------------------------------------------
Total net assets                                                   $86,061,520    $165,585,291      $334,956,699    $111,071,552
- --------------------------------------------------------------------------------------------------------------------------------
Shares of beneficial interest outstanding
Class A                                                              7,772,637      10,644,398        22,796,832       7,134,583
Class B                                                              1,074,534       2,708,136         2,755,978       3,796,778
Class C                                                                   --         1,535,312         2,721,190            --
- --------------------------------------------------------------------------------------------------------------------------------
Total shares of beneficial interest outstanding                      8,847,171      14,887,846        28,274,000      10,931,361
- --------------------------------------------------------------------------------------------------------------------------------

Class A shares
Net asset value per share
(net assets/shares of beneficial interest outstanding)             $      9.73    $      11.13      $      11.85    $      10.15
- --------------------------------------------------------------------------------------------------------------------------------
Offering price per share (100/95.25Xnet asset value per share)     $     10.22    $      11.69      $      12.44    $      10.66
- --------------------------------------------------------------------------------------------------------------------------------

Class B shares
Net asset value and offering price per share
(net assets/shares of beneficial interest outstanding)             $      9.74    $      11.09      $      11.83    $      10.18
- --------------------------------------------------------------------------------------------------------------------------------

Class C shares
Net asset value and offering price per share
(net assets/shares of beneficial interest outstanding)                     $--    $      11.11      $      11.84             $--
- --------------------------------------------------------------------------------------------------------------------------------

On sales of $100,000 or more, the offering price of Class A shares is reduced. A contingent deferred sales charge may be imposed
on redemptions of Class A, Class B and Class C shares.

SEE NOTES TO FINANCIAL STATEMENTS



Statement of Assets and Liabilities - continued




                                                                   SOUTH CAROLINA       TENNESSEE        VIRGINIA    WEST VIRGINIA
For year ended 3/31/06                                                       FUND            FUND            FUND             FUND

                                                                                                          
ASSETS
- ----------------------------------------------------------------------------------------------------------------------------------
Investments -
  Identified cost                                                    $147,711,815    $108,561,488    $290,165,692     $137,566,802
  Unrealized appreciation (depreciation)                                8,334,688       5,622,231      13,833,983        6,912,316
- ----------------------------------------------------------------------------------------------------------------------------------
Total investments, at value                                          $156,046,503    $114,183,719    $303,999,675     $144,479,118
Cash                                                                       37,408          24,466          99,860           25,983
Receivable for investments sold                                                --         875,742       3,138,230           30,000
Receivable for fund shares sold                                           143,634          23,100         114,129           98,795
Interest receivable                                                     2,444,173       1,660,432       4,747,094        2,417,707
Unrealized appreciation on interest rate swaps                            179,291              --         144,319          128,799
- ----------------------------------------------------------------------------------------------------------------------------------
Total assets                                                         $158,851,009    $116,767,459    $312,243,307     $147,180,402
- ----------------------------------------------------------------------------------------------------------------------------------
LIABILITIES
- ----------------------------------------------------------------------------------------------------------------------------------
Distributions payable                                                    $161,341        $198,454        $445,466         $158,591
Payable for investments purchased                                       1,028,680              --       3,811,842               --
Payable for fund shares reacquired                                        154,949         289,318         184,651           97,683
Unrealized depreciation on interest rate swaps                             30,232         151,684         157,290           30,232
Payable to affiliates -
  Management fee                                                            1,292             953           2,522            1,204
  Shareholder servicing costs                                              10,691           7,388          20,447            8,881
  Distribution and service fees                                             1,972           1,419           3,473            1,627
  Administrative services fee                                                  63              53             120               61
Payable for independent trustees' compensation                             16,078          13,107          16,669           15,736
Accrued expenses and other liabilities                                     64,375          62,095          88,107           62,626
- ----------------------------------------------------------------------------------------------------------------------------------
Total liabilities                                                      $1,469,673        $724,471      $4,730,587         $376,641
- ----------------------------------------------------------------------------------------------------------------------------------
Net assets                                                           $157,381,336    $116,042,988    $307,512,720     $146,803,761
- ----------------------------------------------------------------------------------------------------------------------------------
NET ASSETS CONSIST OF
- ----------------------------------------------------------------------------------------------------------------------------------
Paid-in capital                                                      $149,405,014    $110,694,520    $294,437,588     $140,245,969
Unrealized appreciation (depreciation) on investments                   8,483,747       5,470,547      13,821,012        7,010,883
Accumulated net realized gain (loss) on investments                      (414,234)        133,909          78,692         (169,083)
Accumulated distributions in excess of net investment income              (93,191)       (255,988)       (824,572)        (284,008)
- ----------------------------------------------------------------------------------------------------------------------------------
Net assets                                                           $157,381,336    $116,042,988    $307,512,720     $146,803,761
- ----------------------------------------------------------------------------------------------------------------------------------



Statement of Assets and Liabilities - continued




                                                                   SOUTH CAROLINA       TENNESSEE        VIRGINIA    WEST VIRGINIA
For year ended 3/31/06                                                       FUND            FUND            FUND             FUND

                                                                                                          
Net Assets
Class A                                                              $131,167,200    $ 98,825,497    $277,632,554     $134,415,461
Class B                                                                26,214,136      17,217,491      16,884,892       12,388,300
Class C                                                                        --              --      12,995,274               --
- ----------------------------------------------------------------------------------------------------------------------------------
Total net assets                                                     $157,381,336    $116,042,988    $307,512,720     $146,803,761
- ----------------------------------------------------------------------------------------------------------------------------------
Shares of beneficial interest outstanding
Class A                                                                10,706,507       9,356,295      24,329,340       11,718,696
Class B                                                                 2,141,062       1,631,198       1,480,756        1,080,558
Class C                                                                        --              --       1,139,059               --
- ----------------------------------------------------------------------------------------------------------------------------------
Total shares of beneficial interest outstanding                        12,847,569      10,987,493      26,949,155       12,799,254
- ----------------------------------------------------------------------------------------------------------------------------------

Class A shares
Net asset value per share
(net assets/shares of beneficial interest outstanding)                     $12.25          $10.56          $11.41           $11.47
- ----------------------------------------------------------------------------------------------------------------------------------
Offering price per share (100/95.25Xnet asset value per share)             $12.86          $11.09          $11.98           $12.04
- ----------------------------------------------------------------------------------------------------------------------------------

Class B shares
Net asset value and offering price per share
(net assets/shares of beneficial interest outstanding)                     $12.24          $10.56          $11.40           $11.46
- ----------------------------------------------------------------------------------------------------------------------------------

Class C shares
Net asset value and offering price per share
(net assets/shares of beneficial interest outstanding)                        $--             $--          $11.41              $--
- ----------------------------------------------------------------------------------------------------------------------------------

On sales of $100,000 or more, the offering price of Class A shares is reduced. A contingent deferred sales charge may be imposed
on redemptions of Class A, Class B and Class C shares.

SEE NOTES TO FINANCIAL STATEMENTS



FINANCIAL STATEMENTS      STATEMENT OF OPERATIONS

This statement describes how much your fund received in investment income and
paid in expenses. It also describes any gains or losses generated by fund
operations.



                                                                  MISSISSIPPI         NEW YORK    NORTH CAROLINA     PENNSYLVANIA
For year ended 3/31/06                                                   FUND             FUND              FUND             FUND

                                                                                                           
NET INVESTMENT INCOME
- ---------------------------------------------------------------------------------------------------------------------------------
Interest                                                           $4,474,833       $9,047,182       $17,763,345       $5,387,602
- ---------------------------------------------------------------------------------------------------------------------------------
Expenses -
  Management fee                                                     $482,629         $956,565        $1,905,888         $612,949
  Distribution and service fees                                        84,973          818,796         1,664,065          418,425
  Shareholder servicing costs                                         124,489          247,140           478,496          154,667
  Administrative services fee                                          17,427           27,235            46,766           20,034
  Independent trustees' compensation                                    5,418            8,205            15,340            7,302
  Custodian fee                                                        40,431           62,240           121,182           42,987
  Shareholder communications                                            8,219           23,483            42,755           18,819
  Auditing fees                                                        44,324           44,344            44,382           43,528
  Legal fees                                                            8,970           33,890            11,129           14,383
  Miscellaneous                                                        50,516           75,746            72,746           39,418
- ---------------------------------------------------------------------------------------------------------------------------------
Total expenses                                                       $867,396       $2,297,644        $4,402,749       $1,372,512
- ---------------------------------------------------------------------------------------------------------------------------------
  Fees paid indirectly                                                (10,791)         (12,591)          (30,136)          (8,166)
  Reduction of expenses by investment adviser                        (220,301)        (435,899)         (868,267)        (399,762)
- ---------------------------------------------------------------------------------------------------------------------------------
Net expenses                                                         $636,304       $1,849,154        $3,504,346         $964,584
- ---------------------------------------------------------------------------------------------------------------------------------
Net investment income                                              $3,838,529       $7,198,028       $14,258,999       $4,423,018
- ---------------------------------------------------------------------------------------------------------------------------------

REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS:
- ---------------------------------------------------------------------------------------------------------------------------------
Realized gain (loss) (identified cost basis) -
  Investment transactions                                            $139,165         $719,463          $736,465         $301,189
  Swap transactions                                                   147,467           89,998           282,977           42,702
- ---------------------------------------------------------------------------------------------------------------------------------
Net realized gain (loss) on investments                              $286,632         $809,461        $1,019,442         $343,891
- ---------------------------------------------------------------------------------------------------------------------------------
Change in unrealized appreciation (depreciation) -
  Investments                                                     $(1,058,665)     $(2,621,573)      $(3,866,717)       $(580,781)
  Swap transactions                                                   (44,559)             334           119,123          (19,004)
- ---------------------------------------------------------------------------------------------------------------------------------
Net unrealized gain (loss) on investments                         $(1,103,224)     $(2,621,239)      $(3,747,594)       $(599,785)
- ---------------------------------------------------------------------------------------------------------------------------------
Net realized and unrealized gain (loss) on investments              $(816,592)     $(1,811,778)      $(2,728,152)       $(255,894)
- ---------------------------------------------------------------------------------------------------------------------------------
Change in net assets from operations                               $3,021,937       $5,386,250       $11,530,847       $4,167,124
- ---------------------------------------------------------------------------------------------------------------------------------


SEE NOTES TO FINANCIAL STATEMENTS


Statement of Operations - continued




                                                               SOUTH CAROLINA        TENNESSEE         VIRGINIA    WEST VIRGINIA
For year ended 3/31/06                                                   FUND             FUND             FUND             FUND

                                                                                                         
NET INVESTMENT INCOME
- --------------------------------------------------------------------------------------------------------------------------------
Interest                                                           $8,393,277       $6,229,512      $16,499,907       $7,522,980
- --------------------------------------------------------------------------------------------------------------------------------
Expenses -
  Management fee                                                     $878,565         $672,349       $1,723,944         $816,555
  Distribution and service fees                                       746,133          551,957        1,299,754          607,115
  Shareholder servicing costs                                         216,254          163,542          421,988          195,257
  Administrative services fee                                          25,541           21,330           42,966           24,259
  Independent trustees' compensation                                    9,710            7,628           14,603            9,345
  Custodian fee                                                        62,188           41,947          106,473           51,385
  Shareholder communications                                           18,139           10,881           45,839           14,942
  Auditing fees                                                        44,340           44,332           44,374           44,337
  Legal fees                                                            5,840            6,328           12,132            5,570
  Miscellaneous                                                        39,887           49,714           83,830           50,665
- --------------------------------------------------------------------------------------------------------------------------------
Total expenses                                                     $2,046,597       $1,570,008       $3,795,903       $1,819,430
- --------------------------------------------------------------------------------------------------------------------------------
  Fees paid indirectly                                                (11,861)          (8,344)         (26,212)         (12,467)
  Reduction of expenses by investment adviser                        (400,334)        (306,371)        (785,506)        (372,074)
- --------------------------------------------------------------------------------------------------------------------------------
Net expenses                                                       $1,634,402       $1,255,293       $2,984,185       $1,434,889
- --------------------------------------------------------------------------------------------------------------------------------
Net investment income                                              $6,758,875       $4,974,219      $13,515,722       $6,088,091
- --------------------------------------------------------------------------------------------------------------------------------

REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS:
- --------------------------------------------------------------------------------------------------------------------------------
Realized gain (loss) (identified cost basis) -
  Investment transactions                                            $439,645         $361,731         $830,201         $150,465
  Swap transactions                                                   250,896          119,455          364,938          250,952
- --------------------------------------------------------------------------------------------------------------------------------
Net realized gain (loss) on investments                              $690,541         $481,186       $1,195,139         $401,417
- --------------------------------------------------------------------------------------------------------------------------------
Change in unrealized appreciation (depreciation) -
  Investments                                                     $(2,259,791)     $(1,581,219)     $(4,268,211)     $(1,918,969)
  Swap transactions                                                    94,849         (139,688)         102,093           (9,694)
- --------------------------------------------------------------------------------------------------------------------------------
Net unrealized gain (loss) on investments                         $(2,164,942)     $(1,720,907)     $(4,166,118)     $(1,928,663)
- --------------------------------------------------------------------------------------------------------------------------------
Net realized and unrealized gain (loss) on investments            $(1,474,401)     $(1,239,721)     $(2,970,979)     $(1,527,246)
- --------------------------------------------------------------------------------------------------------------------------------
Change in net assets from operations                               $5,284,474       $3,734,498      $10,544,743       $4,560,845
- --------------------------------------------------------------------------------------------------------------------------------


SEE NOTES TO FINANCIAL STATEMENTS


FINANCIAL STATEMENTS      STATEMENT OF CHANGES IN NET ASSETS

This statement describes the increases and or decreases in net assets resulting
from operations, any distributions, and any shareholder transactions.




                                                                   MISSISSIPPI        NEW YORK    NORTH CAROLINA     PENNSYLVANIA
For year ended 3/31/06                                                    FUND            FUND              FUND             FUND

                                                                                                        
CHANGE IN NET ASSETS
OPERATIONS
- ---------------------------------------------------------------------------------------------------------------------------------
Net investment income                                               $3,838,529      $7,198,028       $14,258,999       $4,423,018
Net realized gain (loss) on investments                                286,632         809,461         1,019,442          343,891
Net unrealized gain (loss) on investments                           (1,103,224)     (2,621,239)       (3,747,594)        (599,785)
- ---------------------------------------------------------------------------------------------------------------------------------
Change in net assets from operations                                $3,021,937      $5,386,250       $11,530,847       $4,167,124
- ---------------------------------------------------------------------------------------------------------------------------------
DISTRIBUTIONS DECLARED TO SHAREHOLDERS
- ---------------------------------------------------------------------------------------------------------------------------------
From net investment income
  Class A                                                          $(3,413,002)    $(5,263,309)     $(11,694,658)     $(2,989,205)
  Class B                                                             (412,712)     (1,168,804)       (1,306,917)      (1,394,784)
  Class C                                                                   --        (642,938)       (1,170,926)              --
- ---------------------------------------------------------------------------------------------------------------------------------
From net realized gain on investments
  Class A                                                                   --        (564,709)       (1,065,305)              --
  Class B                                                                   --        (152,917)         (135,859)              --
  Class C                                                                   --         (82,521)         (127,766)              --
- ---------------------------------------------------------------------------------------------------------------------------------
Total distributions declared to shareholders                       $(3,825,714)    $(7,875,198)     $(15,501,431)     $(4,383,989)
- ---------------------------------------------------------------------------------------------------------------------------------
Change in net assets from fund share transactions                  $(4,252,560)   $(12,844,892)     $(14,095,028)      $1,890,721
- ---------------------------------------------------------------------------------------------------------------------------------
Total change in net assets                                         $(5,056,337)   $(15,333,840)     $(18,065,612)      $1,673,856
- ---------------------------------------------------------------------------------------------------------------------------------

NET ASSETS
- ---------------------------------------------------------------------------------------------------------------------------------
At beginning of period                                              91,117,857     180,919,131       353,022,311      109,397,696
At end of period                                                   $86,061,520    $165,585,291      $334,956,699     $111,071,552
- ---------------------------------------------------------------------------------------------------------------------------------
Accumulated distributions in excess of net investment income
included in net assets at end of period                              $(122,532)      $(506,387)        $(585,389)       $(210,389)
- ---------------------------------------------------------------------------------------------------------------------------------

                                                                SOUTH CAROLINA       TENNESSEE          VIRGINIA    WEST VIRGINIA
For year ended 3/31/06                                                    FUND            FUND              FUND             FUND

CHANGE IN NET ASSETS
OPERATIONS
- ---------------------------------------------------------------------------------------------------------------------------------
Net investment income                                               $6,758,875      $4,974,219       $13,515,722       $6,088,091
Net realized gain (loss) on investments                                690,541         481,186         1,195,139          401,417
Net unrealized gain (loss) on investments                           (2,164,942)     (1,720,907)       (4,166,118)      (1,928,663)
- ---------------------------------------------------------------------------------------------------------------------------------
Change in net assets from operations                                $5,284,474      $3,734,498       $10,544,743       $4,560,845
- ---------------------------------------------------------------------------------------------------------------------------------
DISTRIBUTIONS DECLARED TO SHAREHOLDERS
- ---------------------------------------------------------------------------------------------------------------------------------
From net investment income
  Class A                                                          $(5,659,836)    $(4,261,947)     $(12,295,006)     $(5,562,081)
  Class B                                                           (1,056,777)       (664,458)         (688,908)        (467,115)
  Class C                                                                   --              --          (466,544)              --
- ---------------------------------------------------------------------------------------------------------------------------------
From net realized gain on investments
  Class A                                                                   --        (373,368)               --               --
  Class B                                                                   --         (67,191)               --               --
- ---------------------------------------------------------------------------------------------------------------------------------
Total distributions declared to shareholder                        $(6,716,613)    $(5,366,964)     $(13,450,458)     $(6,029,196)
- ---------------------------------------------------------------------------------------------------------------------------------
Change in net assets from fund share transactions                  $(2,560,303)    $(7,850,463)      $(6,612,020)       $(521,038)
- ---------------------------------------------------------------------------------------------------------------------------------
Total change in net assets                                         $(3,992,442)    $(9,482,929)      $(9,517,735)     $(1,989,389)
- ---------------------------------------------------------------------------------------------------------------------------------

NET ASSETS
- ---------------------------------------------------------------------------------------------------------------------------------
At beginning of period                                             161,373,778     125,525,917       317,030,455      148,793,150
At end of period                                                  $157,381,336    $116,042,988      $307,512,720     $146,803,761
- ---------------------------------------------------------------------------------------------------------------------------------
Accumulated distributions in excess of net investment income
included in net assets at end of period                               $(93,191)      $(255,988)        $(824,572)       $(284,008)
- ---------------------------------------------------------------------------------------------------------------------------------


SEE NOTES TO FINANCIAL STATEMENTS


Statement of Changes in Net Assets - continued




                                                                   MISSISSIPPI        NEW YORK    NORTH CAROLINA     PENNSYLVANIA
For year ended 3/31/05                                                    FUND            FUND              FUND             FUND

                                                                                                        
CHANGE IN NET ASSETS
OPERATIONS
- ---------------------------------------------------------------------------------------------------------------------------------
Net investment income                                               $4,246,035      $7,863,201       $15,534,523       $4,519,117
Net realized gain (loss) on investments                               (599,779)      1,305,318         2,301,615          515,430
Net unrealized gain (loss) on investments                           (1,291,053)     (5,205,262)      (10,908,526)      (2,429,625)
- ---------------------------------------------------------------------------------------------------------------------------------
Change in net assets from operations                                $2,355,203      $3,963,257        $6,927,612       $2,604,922
- ---------------------------------------------------------------------------------------------------------------------------------
DISTRIBUTIONS DECLARED TO SHAREHOLDERS
- ---------------------------------------------------------------------------------------------------------------------------------
From net investment income
  Class A                                                          $(3,800,669)    $(5,659,906)    $(12,575,689)      $(2,936,106)
  Class B                                                             (488,047)     (1,405,511)      (1,644,629)       (1,545,007)
  Class C                                                                   --        (758,214)      (1,223,511)               --
- ---------------------------------------------------------------------------------------------------------------------------------
From net realized gain on investments
  Class A                                                                   --              --         (936,801)               --
  Class B                                                                   --              --         (140,671)               --
  Class C                                                                   --              --         (107,103)               --
- ---------------------------------------------------------------------------------------------------------------------------------
Total distributions declared to shareholders                       $(4,288,716)    $(7,823,631)    $(16,628,404)      $(4,481,113)
- ---------------------------------------------------------------------------------------------------------------------------------
Change in net assets from fund share transactions                  $(2,632,645)   $(10,280,741)    $(28,080,809)     $(12,289,315)
- ---------------------------------------------------------------------------------------------------------------------------------
Redemption fees                                                            $41          $2,441               $1               $21
- ---------------------------------------------------------------------------------------------------------------------------------
Total change in net assets                                         $(4,566,117)   $(14,138,674)    $(37,781,600)     $(14,165,485)
- ---------------------------------------------------------------------------------------------------------------------------------
NET ASSETS
- ---------------------------------------------------------------------------------------------------------------------------------
At beginning of period                                              95,683,974     195,057,805      390,803,911       123,563,181
At end of period                                                   $91,117,857    $180,919,131     $353,022,311      $109,397,696
- ---------------------------------------------------------------------------------------------------------------------------------
Accumulated distributions in excess of net investment income
included in net assets at end of period                              $(145,835)      $(579,928)       $(629,708)        $(247,616)
- ---------------------------------------------------------------------------------------------------------------------------------

                                                                SOUTH CAROLINA       TENNESSEE          VIRGINIA    WEST VIRGINIA
For year ended 3/31/05                                                    FUND            FUND              FUND             FUND

CHANGE IN NET ASSETS
OPERATIONS
- ---------------------------------------------------------------------------------------------------------------------------------
Net investment income                                               $7,197,796      $5,340,555       $14,787,096       $6,504,194
Net realized gain (loss) on investments                                930,247       1,007,888         3,298,859          (76,934)
Net unrealized gain (loss) on investments                           (4,411,964)     (3,338,157)       (9,424,724)      (3,229,447)
- ---------------------------------------------------------------------------------------------------------------------------------
Change in net assets from operations                                $3,716,079      $3,010,286        $8,661,231       $3,197,813
- ---------------------------------------------------------------------------------------------------------------------------------
DISTRIBUTIONS DECLARED TO SHAREHOLDERS
- ---------------------------------------------------------------------------------------------------------------------------------
From net investment income
  Class A                                                          $(5,900,829)    $(4,493,724)     $(13,347,276)     $(5,865,720)
  Class B                                                           (1,287,235)       (765,363)         (855,754)        (572,534)
  Class C                                                                   --              --          (489,932)              --
- ---------------------------------------------------------------------------------------------------------------------------------
From net realized gain on investments
  Class A                                                                   --        (753,833)               --               --
  Class B                                                                   --        (154,547)               --               --
- ---------------------------------------------------------------------------------------------------------------------------------
Total distributions declared to shareholders                       $(7,188,064)    $(6,167,467)     $(14,692,962)     $(6,438,254)
- ---------------------------------------------------------------------------------------------------------------------------------
Change in net assets from fund share transactions                  $(9,882,323)   $(14,612,884)     $(15,058,690)     $(6,309,465)
- ---------------------------------------------------------------------------------------------------------------------------------
Redemption fees                                                            $--             $--              $606              $44
- ---------------------------------------------------------------------------------------------------------------------------------
Total change in net assets                                        $(13,354,308)   $(17,770,065)     $(21,089,815)     $(9,549,862)
- ---------------------------------------------------------------------------------------------------------------------------------
NET ASSETS
- ---------------------------------------------------------------------------------------------------------------------------------
At beginning of period                                             174,728,086     143,295,982       338,120,270      158,343,012
At end of period                                                  $161,373,778    $125,525,917      $317,030,455     $148,793,150
- ---------------------------------------------------------------------------------------------------------------------------------
Accumulated distributions in excess of net investment income
included in net assets at end of period                             $(104,050)       $(285,525)        $(862,634)       $(336,222)
- ---------------------------------------------------------------------------------------------------------------------------------


SEE NOTES TO FINANCIAL STATEMENTS




FINANCIAL STATEMENTS      FINANCIAL HIGHLIGHTS, MFS(R) MISSISSIPPI MUNICIPAL BOND FUND

The financial highlights table is intended to help you understand the fund's financial performance for the past 5 years.
Certain information reflects financial results for a single fund share. The total returns in the table represent the
rate by which an investor would have earned (or lost) on an investment in the fund share class (assuming reinvestment of
all distributions) held for the entire period. This information has been audited by the fund's independent registered
public accounting firm, whose report, together with the fund's financial statements, are included in this report.



                                                                                           YEARS ENDED 3/31
                                                                      -----------------------------------------------------------
CLASS A                                                                  2006         2005         2004         2003         2002
                                                                                                             
Net asset value, beginning of period                                    $9.82       $10.02       $10.02        $9.61        $9.78
- ---------------------------------------------------------------------------------------------------------------------------------

INCOME (LOSS) FROM INVESTMENT OPERATIONS
- ---------------------------------------------------------------------------------------------------------------------------------
Net investment income (d)                                               $0.44        $0.46        $0.46        $0.46        $0.49
Net realized and unrealized gain (loss) on investments                  (0.09)       (0.19)        0.01         0.44        (0.16)
- ---------------------------------------------------------------------------------------------------------------------------------
Total from investment operations                                        $0.35        $0.27        $0.47        $0.90        $0.33
- ---------------------------------------------------------------------------------------------------------------------------------
LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS
- ---------------------------------------------------------------------------------------------------------------------------------
From net investment income                                             $(0.44)      $(0.47)      $(0.47)      $(0.49)      $(0.50)
- ---------------------------------------------------------------------------------------------------------------------------------
Net asset value, end of period                                          $9.73        $9.82       $10.02       $10.02        $9.61
- ---------------------------------------------------------------------------------------------------------------------------------
Total return (%) (r)(s)(t)                                               3.59         2.76         4.77         9.48         3.45
- ---------------------------------------------------------------------------------------------------------------------------------

RATIOS (%) (TO AVERAGE NET ASSETS) AND
SUPPLEMENTAL DATA:
- ---------------------------------------------------------------------------------------------------------------------------------
Expenses before expense reductions (f)                                   0.89         0.83         0.82         0.84         0.85
Expenses after expense reductions (f)                                    0.64         0.58         0.62         0.64         0.65
Net investment income                                                    4.48         4.70         4.61         4.70         5.05
Portfolio turnover                                                          9           19           12           22            6
Net assets at end of period (000 Omitted)                             $75,597      $79,574      $82,507      $87,724      $76,004
- ---------------------------------------------------------------------------------------------------------------------------------


                                                                                           YEARS ENDED 3/31
                                                                      -----------------------------------------------------------
CLASS B                                                                  2006         2005         2004         2003         2002
                                                                                                             
Net asset value, beginning of period                                    $9.84       $10.03       $10.04        $9.62        $9.79
- ---------------------------------------------------------------------------------------------------------------------------------
INCOME (LOSS) FROM INVESTMENT OPERATIONS
- ---------------------------------------------------------------------------------------------------------------------------------
Net investment income (d)                                               $0.37        $0.39        $0.38        $0.38        $0.42
Net realized and unrealized gain (loss) on investments                  (0.10)       (0.19)       (0.01)(g)     0.44        (0.17)
- ---------------------------------------------------------------------------------------------------------------------------------
Total from investment operations                                        $0.27        $0.20        $0.37        $0.82        $0.25
- ---------------------------------------------------------------------------------------------------------------------------------
LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS
- ---------------------------------------------------------------------------------------------------------------------------------
From net investment income                                             $(0.37)      $(0.39)      $(0.38)      $(0.40)      $(0.42)
- ---------------------------------------------------------------------------------------------------------------------------------
Net asset value, end of period                                          $9.74        $9.84       $10.03       $10.04        $9.62
- ---------------------------------------------------------------------------------------------------------------------------------
Total return (%) (r)(s)(t)                                               2.71         2.08         3.80         8.67         2.62
- ---------------------------------------------------------------------------------------------------------------------------------

RATIOS (%) (TO AVERAGE NET ASSETS) AND
SUPPLEMENTAL DATA:
- ---------------------------------------------------------------------------------------------------------------------------------
Expenses before expense reductions (f)                                   1.65         1.60         1.64         1.67         1.65
Expenses after expense reductions (f)                                    1.40         1.35         1.44         1.47         1.45
Net investment income                                                    3.72         3.93         3.79         3.86         4.23
Portfolio turnover                                                          9           19           12           22            6
Net assets at end of period (000 Omitted)                             $10,465      $11,544      $13,177      $12,900      $10,177
- ---------------------------------------------------------------------------------------------------------------------------------

Any redemption fees charged by the fund during the 2005 fiscal year resulted in a per share impact of less than $0.01.
(d) Per share data are based on average shares outstanding
(f) Ratios do not reflect reductions from fees paid indirectly.
(g) The per share amount is not in accordance with the net realized and unrealized gain/loss for the period because of the
    timing of sales of fund shares and the amount of per share realized and unrealized gains and losses at such time.
(r) Certain expenses have been reduced without which performance would have been lower.
(s) From time to time the fund may receive proceeds from litigation settlements, without which performance would be lower.
(t) Total returns do not include any applicable sales charges.

SEE NOTES TO FINANCIAL STATEMENTS




FINANCIAL STATEMENTS      FINANCIAL HIGHLIGHTS, MFS(R) NEW YORK MUNICIPAL BOND FUND

The financial highlights table is intended to help you understand the fund's financial performance for the past 5 years.
Certain information reflects financial results for a single fund share. The total returns in the table represent the
rate by which an investor would have earned (or lost) on an investment in the fund share class (assuming reinvestment of
all distributions) held for the entire period. This information has been audited by the fund's independent registered
public accounting firm, whose report, together with the fund's financial statements, are included in this report.


                                                                                         YEARS ENDED 3/31
                                                                 ----------------------------------------------------------------
CLASS A                                                              2006          2005          2004          2003          2002
                                                                                                            
Net asset value, beginning of period                               $11.30        $11.53        $11.49        $10.94        $11.14
- ---------------------------------------------------------------------------------------------------------------------------------
INCOME (LOSS) FROM INVESTMENT OPERATIONS
- ---------------------------------------------------------------------------------------------------------------------------------
Net investment income (d)                                           $0.49         $0.51         $0.51         $0.52         $0.53
Net realized and unrealized gain (loss) on investments              (0.12)        (0.24)         0.04          0.56         (0.18)
- ---------------------------------------------------------------------------------------------------------------------------------
Total from investment operations                                    $0.37         $0.27         $0.55         $1.08         $0.35
- ---------------------------------------------------------------------------------------------------------------------------------
LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS
- ---------------------------------------------------------------------------------------------------------------------------------
From net investment income                                         $(0.49)       $(0.50)       $(0.51)       $(0.53)       $(0.55)
From net realized gain on investments                               (0.05)           --            --            --            --
- ---------------------------------------------------------------------------------------------------------------------------------
Total distributions declared to shareholders                       $(0.54)       $(0.50)       $(0.51)       $(0.53)       $(0.55)
- ---------------------------------------------------------------------------------------------------------------------------------
Net asset value, end of period                                     $11.13        $11.30        $11.53        $11.49        $10.94
- ---------------------------------------------------------------------------------------------------------------------------------
Total return (%) (r)(s)(t)                                           3.30          2.45          4.90         10.05          3.16
- ---------------------------------------------------------------------------------------------------------------------------------

RATIOS (%) (TO AVERAGE NET ASSETS) AND
SUPPLEMENTAL DATA:
- ---------------------------------------------------------------------------------------------------------------------------------
Expenses before expense reductions (f)                               1.10          1.04          1.06          1.07          1.08
Expenses after expense reductions (f)                                0.85          0.79          0.86          0.87          0.88
Net investment income                                                4.36          4.47          4.39          4.56          4.80
Portfolio turnover                                                     12            20            13            17            18
Net assets at end of period (000 Omitted)                        $118,476      $125,861      $131,642      $132,843      $121,717
- ---------------------------------------------------------------------------------------------------------------------------------


                                                                                         YEARS ENDED 3/31
                                                                 ----------------------------------------------------------------
CLASS B                                                              2006          2005          2004          2003          2002
                                                                                                            
Net asset value, beginning of period                               $11.27        $11.49        $11.45        $10.93        $11.13
- ---------------------------------------------------------------------------------------------------------------------------------
INCOME (LOSS) FROM INVESTMENT OPERATIONS
- ---------------------------------------------------------------------------------------------------------------------------------
Net investment income (d)                                           $0.41         $0.42         $0.42         $0.43         $0.45
Net realized and unrealized gain (loss) on investments              (0.14)        (0.22)         0.04          0.54         (0.19)
- ---------------------------------------------------------------------------------------------------------------------------------
Total from investment operations                                    $0.27         $0.20         $0.46         $0.97         $0.26
- ---------------------------------------------------------------------------------------------------------------------------------
LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS
- ---------------------------------------------------------------------------------------------------------------------------------
From net investment income                                         $(0.40)       $(0.42)       $(0.42)       $(0.45)       $(0.46)
From net realized gain on investments                               (0.05)           --            --            --            --
- ---------------------------------------------------------------------------------------------------------------------------------
Total distributions declared to shareholders                       $(0.45)       $(0.42)       $(0.42)       $(0.45)       $(0.46)
- ---------------------------------------------------------------------------------------------------------------------------------
Net asset value, end of period                                     $11.09        $11.27        $11.49        $11.45        $10.93
- ---------------------------------------------------------------------------------------------------------------------------------
Total return (%) (r)(s)(t)                                           2.43          1.77          4.12          8.96          2.39
- ---------------------------------------------------------------------------------------------------------------------------------

RATIOS (%) (TO AVERAGE NET ASSETS) AND
SUPPLEMENTAL DATA:
- ---------------------------------------------------------------------------------------------------------------------------------
Expenses before expense reductions (f)                               1.85          1.79          1.80          1.82          1.83
Expenses after expense reductions (f)                                1.60          1.54          1.60          1.62          1.63
Net investment income                                                3.61          3.70          3.62          3.80          4.05
Portfolio turnover                                                     12            20            13            17            18
Net assets at end of period (000 Omitted)                         $30,046       $35,328       $41,509       $40,867       $29,903
- ---------------------------------------------------------------------------------------------------------------------------------

SEE NOTES TO FINANCIAL STATEMENTS



FINANCIAL STATEMENTS      FINANCIAL HIGHLIGHTS, MFS(R) NEW YORK MUNICIPAL BOND FUND - CONTINUED
                                                                                           YEARS ENDED 3/31
                                                                      -----------------------------------------------------------

CLASS C                                                                  2006         2005         2004         2003         2002
                                                                                                            
Net asset value, beginning of period                                   $11.29       $11.51       $11.47       $10.93       $11.13
- ---------------------------------------------------------------------------------------------------------------------------------
INCOME (LOSS) FROM INVESTMENT OPERATIONS
- ---------------------------------------------------------------------------------------------------------------------------------
Net investment income (d)                                               $0.41        $0.42        $0.42        $0.43        $0.45
Net realized and unrealized gain (loss) on investments                  (0.14)       (0.22)        0.04         0.56        (0.18)
- ---------------------------------------------------------------------------------------------------------------------------------
Total from investment operations                                        $0.27        $0.20        $0.46        $0.99        $0.27
- ---------------------------------------------------------------------------------------------------------------------------------
LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS
- ---------------------------------------------------------------------------------------------------------------------------------
From net investment income                                             $(0.40)      $(0.42)      $(0.42)      $(0.45)      $(0.47)
From net realized gain on investments                                   (0.05)          --           --           --           --
- ---------------------------------------------------------------------------------------------------------------------------------
Total distributions declared to shareholders                           $(0.45)      $(0.42)      $(0.42)      $(0.45)      $(0.47)
- ---------------------------------------------------------------------------------------------------------------------------------
Net asset value, end of period                                         $11.11       $11.29       $11.51       $11.47       $10.93
- ---------------------------------------------------------------------------------------------------------------------------------
Total return (%) (r)(s)(t)                                               2.43         1.78         4.12         9.14         2.39
- ---------------------------------------------------------------------------------------------------------------------------------

RATIOS (%) (TO AVERAGE NET ASSETS) AND
SUPPLEMENTAL DATA:
- ---------------------------------------------------------------------------------------------------------------------------------
Expenses before expense reductions (f)                                   1.85         1.79         1.80         1.82         1.83
Expenses after expense reductions (f)                                    1.60         1.54         1.60         1.62         1.63
Net investment income                                                    3.61         3.72         3.63         3.81         4.05
Portfolio turnover                                                         12           20           13           17           18
Net assets at end of period (000 Omitted)                             $17,064      $19,730      $21,907      $14,005      $10,178
- ---------------------------------------------------------------------------------------------------------------------------------

Any redemption fees charged by the fund during the 2005 fiscal year resulted in a per share impact of less than $0.01.
(d) Per share data are based on average shares outstanding.
(f) Ratios do not reflect reductions from fees paid indirectly.
(r) Certain expenses have been reduced without which performance would have been lower.
(s) From time to time the fund may receive proceeds from litigation settlements, without which performance would be lower.
(t) Total returns do not include any applicable sales charges.

SEE NOTES TO FINANCIAL STATEMENTS




FINANCIAL STATEMENTS      FINANCIAL HIGHLIGHTS, MFS(R) NORTH CAROLINA MUNICIPAL BOND FUND

The financial highlights table is intended to help you understand the fund's financial performance for the past 5 years.
Certain information reflects financial results for a single fund share. The total returns in the table represent the
rate by which an investor would have earned (or lost) on an investment in the fund share class (assuming reinvestment of
all distributions) held for the entire period. This information has been audited by the fund's independent registered
public accounting firm, whose report, together with the fund's financial statements, are included in this report.



                                                                                         YEARS ENDED 3/31
                                                                 ----------------------------------------------------------------
CLASS A                                                              2006          2005          2004          2003          2002
                                                                                                            
Net asset value, beginning of period                               $11.99        $12.30        $12.24        $11.68        $11.89
- ---------------------------------------------------------------------------------------------------------------------------------
INCOME (LOSS) FROM INVESTMENT OPERATIONS
- ---------------------------------------------------------------------------------------------------------------------------------
Net investment income (d)                                           $0.51         $0.53         $0.53         $0.54         $0.57
Net realized and unrealized gain (loss) on investments              (0.09)        (0.27)         0.07          0.58         (0.21)
- ---------------------------------------------------------------------------------------------------------------------------------
Total from investment operations                                    $0.42         $0.26         $0.60         $1.12         $0.36
- ---------------------------------------------------------------------------------------------------------------------------------
LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS
- ---------------------------------------------------------------------------------------------------------------------------------
From net investment income                                         $(0.51)       $(0.53)       $(0.53)       $(0.56)       $(0.57)
From net realized gain on investments                               (0.05)        (0.04)        (0.01)           --            --
- ---------------------------------------------------------------------------------------------------------------------------------
Total distributions declared to shareholders                       $(0.56)       $(0.57)       $(0.54)       $(0.56)       $(0.57)
- ---------------------------------------------------------------------------------------------------------------------------------
Net asset value, end of period                                     $11.85        $11.99        $12.30        $12.24        $11.68
- ---------------------------------------------------------------------------------------------------------------------------------
Total return (%) (r)(s)(t)                                           3.49          2.15          5.01          9.71          3.08
- ---------------------------------------------------------------------------------------------------------------------------------

RATIOS (%) (TO AVERAGE NET ASSETS) AND
SUPPLEMENTAL DATA:
- ---------------------------------------------------------------------------------------------------------------------------------
Expenses before expense reductions (f)                               1.14          1.10          1.12          1.11          1.12
Expenses after expense reductions (f)                                0.89          0.85          0.92          0.91          0.92
Net investment income                                                4.24          4.38          4.30          4.50          4.78
Portfolio turnover                                                      8             9             9            20            13
Net assets at end of period (000 Omitted)                        $270,124      $279,875      $305,185      $316,687      $303,250
- ---------------------------------------------------------------------------------------------------------------------------------


                                                                                         YEARS ENDED 3/31
                                                                 ----------------------------------------------------------------
CLASS B                                                              2006          2005          2004          2003          2002
                                                                                                            
Net asset value, beginning of period                               $11.98        $12.29        $12.23        $11.67        $11.89
- ---------------------------------------------------------------------------------------------------------------------------------
INCOME (LOSS) FROM INVESTMENT OPERATIONS
- ---------------------------------------------------------------------------------------------------------------------------------
Net investment income (d)                                           $0.43         $0.45         $0.45         $0.47         $0.48
Net realized and unrealized gain (loss) on investments              (0.10)        (0.27)         0.07          0.57         (0.20)
- ---------------------------------------------------------------------------------------------------------------------------------
Total from investment operations                                    $0.33         $0.18         $0.52         $1.04         $0.28
- ---------------------------------------------------------------------------------------------------------------------------------
LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS
- ---------------------------------------------------------------------------------------------------------------------------------
From net investment income                                         $(0.43)       $(0.45)       $(0.45)       $(0.48)       $(0.50)
From net realized gain on investments                               (0.05)        (0.04)        (0.01)           --            --
- ---------------------------------------------------------------------------------------------------------------------------------
Total distributions declared to shareholders                       $(0.48)       $(0.49)       $(0.46)       $(0.48)       $(0.50)
- ---------------------------------------------------------------------------------------------------------------------------------
Net asset value, end of period                                     $11.83        $11.98        $12.29        $12.23        $11.67
- ---------------------------------------------------------------------------------------------------------------------------------
Total return (%) (r)(s)(t)                                           2.73          1.49          4.33          9.01          2.33
- ---------------------------------------------------------------------------------------------------------------------------------

RATIOS (%) (TO AVERAGE NET ASSETS) AND
SUPPLEMENTAL DATA:
- ---------------------------------------------------------------------------------------------------------------------------------
Expenses before expense reductions (f)                               1.79          1.75          1.76          1.76          1.77
Expenses after expense reductions (f)                                1.54          1.50          1.56          1.56          1.57
Net investment income                                                3.59          3.72          3.64          3.85          4.07
Portfolio turnover                                                      8             9             9            20            13
Net assets at end of period (000 Omitted)                         $32,610       $40,251       $50,363       $59,116       $57,534
- ---------------------------------------------------------------------------------------------------------------------------------

SEE NOTES TO FINANCIAL STATEMENTS




FINANCIAL STATEMENTS      FINANCIAL HIGHLIGHTS, MFS(R) NORTH CAROLINA MUNICIPAL BOND FUND - CONTINUED

                                                                                           YEARS ENDED 3/31
                                                                      -----------------------------------------------------------

CLASS C                                                                  2006         2005         2004         2003         2002
                                                                                                            
Net asset value, beginning of period                                   $11.98       $12.29       $12.23       $11.67       $11.89
- ---------------------------------------------------------------------------------------------------------------------------------
INCOME (LOSS) FROM INVESTMENT OPERATIONS
- ---------------------------------------------------------------------------------------------------------------------------------
Net investment income (d)                                               $0.43        $0.45        $0.45        $0.46        $0.48
Net realized and unrealized gain (loss) on investments                  (0.09)       (0.27)        0.07         0.58        (0.20)
- ---------------------------------------------------------------------------------------------------------------------------------
Total from investment operations                                        $0.34        $0.18        $0.52        $1.04        $0.28
- ---------------------------------------------------------------------------------------------------------------------------------
LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS
- ---------------------------------------------------------------------------------------------------------------------------------
From net investment income                                             $(0.43)      $(0.45)      $(0.45)      $(0.48)      $(0.50)
From net realized gain on investments                                   (0.05)       (0.04)       (0.01)          --           --
- ---------------------------------------------------------------------------------------------------------------------------------
Total distributions declared to shareholders                           $(0.48)      $(0.49)      $(0.46)      $(0.48)      $(0.50)
- ---------------------------------------------------------------------------------------------------------------------------------
Net asset value, end of period                                         $11.84       $11.98       $12.29       $12.23       $11.67
- ---------------------------------------------------------------------------------------------------------------------------------
Total return (%) (r)(s)(t)                                               2.82         1.49         4.33         9.01         2.33
- ---------------------------------------------------------------------------------------------------------------------------------

RATIOS (%) (TO AVERAGE NET ASSETS) AND
SUPPLEMENTAL DATA:
- ---------------------------------------------------------------------------------------------------------------------------------
Expenses before expense reductions (f)                                   1.79         1.76         1.77         1.76         1.77
Expenses after expense reductions (f)                                    1.54         1.51         1.57         1.56         1.57
Net investment income                                                    3.61         3.76         3.67         3.84         4.07
Portfolio turnover                                                          8            9            9           20           13
Net assets at end of period (000 Omitted)                             $32,223      $32,897      $35,256      $31,836      $23,741
- ---------------------------------------------------------------------------------------------------------------------------------

Any redemption fees charged by the fund during the 2005 fiscal year resulted in a per share impact of less than $0.01.
(d) Per share data are based on average shares outstanding.
(f) Ratios do not reflect reductions from fees paid indirectly.
(r) Certain expenses have been reduced without which performance would have been lower.
(s) From time to time the fund may receive proceeds from litigation settlements, without which performance would be lower.
(t) Total returns do not include any applicable sales charges.

SEE NOTES TO FINANCIAL STATEMENTS




FINANCIAL STATEMENTS      FINANCIAL HIGHLIGHTS, MFS(R) PENNSYLVANIA MUNICIPAL BOND FUND

The financial highlights table is intended to help you understand the fund's financial performance for the past 5 years.
Certain information reflects financial results for a single fund share. The total returns in the table represent the
rate by which an investor would have earned (or lost) on an investment in the fund share class (assuming reinvestment of
all distributions) held for the entire period. This information has been audited by the fund's independent registered
public accounting firm, whose report, together with the fund's financial statements, are included in this report.


                                                                                           YEARS ENDED 3/31
                                                                      -----------------------------------------------------------
CLASS A                                                                  2006         2005         2004         2003         2002
                                                                                                             
Net asset value, beginning of period                                   $10.17       $10.31       $10.21        $9.73        $9.85
- ---------------------------------------------------------------------------------------------------------------------------------
INCOME (LOSS) FROM INVESTMENT OPERATIONS
- ---------------------------------------------------------------------------------------------------------------------------------
Net investment income (d)                                               $0.43        $0.44        $0.42        $0.45        $0.48
Net realized and unrealized gain (loss) on investments                  (0.02)       (0.14)        0.10         0.51        (0.11)
- ---------------------------------------------------------------------------------------------------------------------------------
Total from investment operations                                        $0.41        $0.30        $0.52        $0.96        $0.37
- ---------------------------------------------------------------------------------------------------------------------------------
LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS
- ---------------------------------------------------------------------------------------------------------------------------------
From net investment income                                             $(0.43)      $(0.44)      $(0.42)      $(0.48)      $(0.49)
- ---------------------------------------------------------------------------------------------------------------------------------
Net asset value, end of period                                         $10.15       $10.17       $10.31       $10.21        $9.73
- ---------------------------------------------------------------------------------------------------------------------------------
Total return (%)(r)(s)(t)                                                4.08         2.97         5.12        10.12         3.85
- ---------------------------------------------------------------------------------------------------------------------------------

RATIOS (%) (TO AVERAGE NET ASSETS) AND
SUPPLEMENTAL DATA:
- ---------------------------------------------------------------------------------------------------------------------------------
Expenses before expense reductions (f)                                   0.96         0.94         0.94         0.96         0.89
Expenses after expense reductions (f)                                    0.60         0.60         0.64         0.48         0.36
Net investment income                                                    4.24         4.33         4.12         4.47         4.90
Portfolio turnover                                                          9           20           24           19           19
Net assets at end of period (000 Omitted)                             $72,429      $67,942      $75,083      $68,705      $47,661
- ---------------------------------------------------------------------------------------------------------------------------------


                                                                                         YEARS ENDED 3/31
                                                                 ----------------------------------------------------------------
CLASS B                                                              2006          2005          2004          2003          2002
                                                                                                             
Net asset value, beginning of period                               $10.20        $10.34        $10.24         $9.75         $9.88
- ---------------------------------------------------------------------------------------------------------------------------------
INCOME (LOSS) FROM INVESTMENT OPERATIONS
- ---------------------------------------------------------------------------------------------------------------------------------
Net investment income (d)                                           $0.36         $0.36         $0.34         $0.36         $0.40
Net realized and unrealized gain (loss) on investments              (0.03)        (0.14)         0.10          0.53         (0.12)
- ---------------------------------------------------------------------------------------------------------------------------------
Total from investment operations                                    $0.33         $0.22         $0.44         $0.89         $0.28
- ---------------------------------------------------------------------------------------------------------------------------------
LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS
- ---------------------------------------------------------------------------------------------------------------------------------
From net investment income                                         $(0.35)       $(0.36)       $(0.34)       $(0.40)       $(0.41)
- ---------------------------------------------------------------------------------------------------------------------------------
Net asset value, end of period                                     $10.18        $10.20        $10.34        $10.24         $9.75
- ---------------------------------------------------------------------------------------------------------------------------------
Total return (%)(r)(s)(t)                                            3.30          2.19          4.38          9.21          2.86
- ---------------------------------------------------------------------------------------------------------------------------------
RATIOS (%) (TO AVERAGE NET ASSETS) AND
SUPPLEMENTAL DATA:
- ---------------------------------------------------------------------------------------------------------------------------------
Expenses before expense reductions (f)                               1.72          1.71          1.74          1.78          1.73
Expenses after expense reductions (f)                                1.36          1.37          1.44          1.30          1.20
Net investment income                                                3.49          3.56          3.32          3.62          4.06
Portfolio turnover                                                      9            20            24            19            19
Net assets at end of period (000 Omitted)                         $38,642       $41,455       $48,480       $46,941       $28,286
- ---------------------------------------------------------------------------------------------------------------------------------

Any redemption fees charged by the fund during the 2005 fiscal year resulted in a per share impact of less than $0.01.
(d) Per share data are based on average shares outstanding.
(f) Ratios do not reflect reductions from fees paid indirectly.
(r) Certain expenses have been reduced without which performance would have been lower.
(s) From time to time the fund may receive proceeds from litigation settlements, without which performance would be lower.
(t) Total returns do not include any applicable sales charges.

SEE NOTES TO FINANCIAL STATEMENTS




FINANCIAL STATEMENTS      FINANCIAL HIGHLIGHTS, MFS(R) SOUTH CAROLINA MUNICIPAL BOND FUND

The financial highlights table is intended to help you understand the fund's financial performance for the past 5 years.
Certain information reflects financial results for a single fund share. The total returns in the table represent the
rate by which an investor would have earned (or lost) on an investment in the fund share class (assuming reinvestment of
all distributions) held for the entire period. This information has been audited by the fund's independent registered
public accounting firm, whose report, together with the fund's financial statements, are included in this report.



                                                                                         YEARS ENDED 3/31
                                                                 ----------------------------------------------------------------
CLASS A                                                              2006          2005          2004          2003          2002
                                                                                                            
Net asset value, beginning of period                               $12.36        $12.61        $12.53        $12.00        $12.15
- ---------------------------------------------------------------------------------------------------------------------------------
INCOME (LOSS) FROM INVESTMENT OPERATIONS
- ---------------------------------------------------------------------------------------------------------------------------------
Net investment income (d)                                           $0.54         $0.56         $0.55         $0.58         $0.60
Net realized and unrealized gain (loss) on investments              (0.11)        (0.25)         0.10          0.54         (0.16)
- ---------------------------------------------------------------------------------------------------------------------------------
Total from investment operations                                    $0.43         $0.31         $0.65         $1.12         $0.44
- ---------------------------------------------------------------------------------------------------------------------------------
LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS
- ---------------------------------------------------------------------------------------------------------------------------------
From net investment income                                         $(0.54)       $(0.56)       $(0.57)       $(0.59)       $(0.59)
- ---------------------------------------------------------------------------------------------------------------------------------
Net asset value, end of period                                     $12.25        $12.36        $12.61        $12.53        $12.00
- ---------------------------------------------------------------------------------------------------------------------------------
Total return (%)(r)(s)(t)                                            3.48          2.52          5.30          9.51          3.68
- ---------------------------------------------------------------------------------------------------------------------------------

RATIOS (%) (TO AVERAGE NET ASSETS) AND
SUPPLEMENTAL DATA:
- ---------------------------------------------------------------------------------------------------------------------------------
Expenses before expense reductions (f)                               1.17          1.14          1.14          1.15          1.14
Expenses after expense reductions (f)                                0.92          0.89          0.94          0.95          0.94
Net investment income                                                4.35          4.50          4.39          4.68          4.91
Portfolio turnover                                                     13            15            16            21            10
Net assets at end of period (000 Omitted)                        $131,167      $130,342      $137,911      $129,844      $121,438
- ---------------------------------------------------------------------------------------------------------------------------------


                                                                                         YEARS ENDED 3/31
                                                                 ----------------------------------------------------------------
CLASS B                                                              2006          2005          2004          2003          2002
                                                                                                            
Net asset value, beginning of period                               $12.36        $12.60        $12.52        $11.99        $12.14
- ---------------------------------------------------------------------------------------------------------------------------------
INCOME (LOSS) FROM INVESTMENT OPERATIONS
- ---------------------------------------------------------------------------------------------------------------------------------
Net investment income (d)                                           $0.46         $0.48         $0.47         $0.50         $0.52
Net realized and unrealized gain (loss) on investments              (0.12)        (0.24)         0.10          0.54         (0.16)
- ---------------------------------------------------------------------------------------------------------------------------------
Total from investment operations                                    $0.34         $0.24         $0.57         $1.04         $0.36
- ---------------------------------------------------------------------------------------------------------------------------------
LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS
- ---------------------------------------------------------------------------------------------------------------------------------
From net investment income                                         $(0.46)       $(0.48)       $(0.49)       $(0.51)       $(0.51)
- ---------------------------------------------------------------------------------------------------------------------------------
Net asset value, end of period                                     $12.24        $12.36        $12.60        $12.52        $11.99
- ---------------------------------------------------------------------------------------------------------------------------------
Total return (%)(r)(s)(t)                                            2.73          1.94          4.62          8.81          3.01
- ---------------------------------------------------------------------------------------------------------------------------------

RATIOS (%) (TO AVERAGE NET ASSETS) AND
SUPPLEMENTAL DATA:
- ---------------------------------------------------------------------------------------------------------------------------------
Expenses before expense reductions (f)                               1.82          1.79          1.79          1.80          1.79
Expenses after expense reductions (f)                                1.57          1.54          1.59          1.60          1.59
Net investment income                                                3.70          3.85          3.74          4.03          4.25
Portfolio turnover                                                     13            15            16            21            10
Net assets at end of period (000 Omitted)                         $26,214       $31,032       $36,817       $37,603       $34,139
- ---------------------------------------------------------------------------------------------------------------------------------

(d) Per share data are based on average shares outstanding.
(f) Ratios do not reflect reductions from fees paid indirectly.
(r) Certain expenses have been reduced without which performance would have been lower.
(s) From time to time the fund may receive proceeds from litigation settlements, without which performance would be lower.
(t) Total returns do not include any applicable sales charges.

SEE NOTES TO FINANCIAL STATEMENTS




FINANCIAL STATEMENTS      FINANCIAL HIGHLIGHTS, MFS(R) TENNESSEE MUNICIPAL BOND FUND

The financial highlights table is intended to help you understand the fund's financial performance for the past 5 years.
Certain information reflects financial results for a single fund share. The total returns in the table represent the
rate by which an investor would have earned (or lost) on an investment in the fund share class (assuming reinvestment of
all distributions) held for the entire period. This information has been audited by the fund's independent registered
public accounting firm, whose report, together with the fund's financial statements, are included in this report.


                                                                                         YEARS ENDED 3/31
                                                                  ---------------------------------------------------------------
CLASS A                                                              2006          2005          2004          2003          2002
                                                                                                            
Net asset value, beginning of period                               $10.71        $10.96        $10.90        $10.43        $10.58
- ---------------------------------------------------------------------------------------------------------------------------------
INCOME (LOSS) FROM INVESTMENT OPERATIONS
- ---------------------------------------------------------------------------------------------------------------------------------
Net investment income (d)                                           $0.45         $0.45         $0.45         $0.47         $0.49
Net realized and unrealized gain (loss) on investments              (0.12)        (0.18)         0.06          0.49         (0.14)
- ---------------------------------------------------------------------------------------------------------------------------------
Total from investment operations                                    $0.33         $0.27         $0.51         $0.96         $0.35
- ---------------------------------------------------------------------------------------------------------------------------------
LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS
- ---------------------------------------------------------------------------------------------------------------------------------
From net investment income                                         $(0.44)       $(0.44)       $(0.45)       $(0.49)       $(0.50)
From net realized gain on investments                               (0.04)        (0.08)           --            --            --
- ---------------------------------------------------------------------------------------------------------------------------------
Total distributions declared to shareholders                       $(0.48)       $(0.52)       $(0.45)       $(0.49)       $(0.50)
- ---------------------------------------------------------------------------------------------------------------------------------
Net asset value, end of period                                     $10.56        $10.71        $10.96        $10.90        $10.43
- ---------------------------------------------------------------------------------------------------------------------------------
Total return (%)(r)(s)(t)                                            3.13          2.53          4.80          9.34          3.36
- ---------------------------------------------------------------------------------------------------------------------------------

RATIOS (%) (TO AVERAGE NET ASSETS) AND
SUPPLEMENTAL DATA:
- ---------------------------------------------------------------------------------------------------------------------------------
Expenses before expense reductions (f)                               1.19          1.16          1.14          1.17          1.14
Expenses after expense reductions (f)                                0.94          0.91          0.94          0.97          0.94
Net investment income                                                4.17          4.16          4.08          4.35          4.66
Portfolio turnover                                                      5            11            19            16            12
Net assets at end of period (000 Omitted)                         $98,825      $104,837      $118,990      $115,819      $101,294
- ---------------------------------------------------------------------------------------------------------------------------------


                                                                                         YEARS ENDED 3/31
                                                                 ----------------------------------------------------------------
CLASS B                                                              2006          2005          2004          2003          2002
                                                                                                            
Net asset value, beginning of period                               $10.70        $10.95        $10.89        $10.42        $10.57
- ---------------------------------------------------------------------------------------------------------------------------------
INCOME (LOSS) FROM INVESTMENT OPERATIONS
- ---------------------------------------------------------------------------------------------------------------------------------
Net investment income (d)                                           $0.38         $0.38         $0.38         $0.40         $0.42
Net realized and unrealized gain (loss) on investments              (0.11)        (0.18)         0.06          0.49         (0.14)
- ---------------------------------------------------------------------------------------------------------------------------------
Total from investment operations                                    $0.27         $0.20         $0.44         $0.89         $0.28
- ---------------------------------------------------------------------------------------------------------------------------------
LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS
- ---------------------------------------------------------------------------------------------------------------------------------
From net investment income                                         $(0.37)       $(0.37)       $(0.38)       $(0.42)       $(0.43)
From net realized gain on investments                               (0.04)        (0.08)           --            --            --
- ---------------------------------------------------------------------------------------------------------------------------------
Total distributions declared to shareholders                       $(0.41)       $(0.45)       $(0.38)       $(0.42)       $(0.43)
- ---------------------------------------------------------------------------------------------------------------------------------
Net asset value, end of period                                     $10.56        $10.70        $10.95        $10.89        $10.42
- ---------------------------------------------------------------------------------------------------------------------------------
Total return (%)(r)(s)(t)                                            2.56          1.87          4.12          8.64          2.69
- ---------------------------------------------------------------------------------------------------------------------------------

RATIOS (%) (TO AVERAGE NET ASSETS) AND
SUPPLEMENTAL DATA:
- ---------------------------------------------------------------------------------------------------------------------------------
Expenses before expense reductions (f)                               1.84          1.81          1.79          1.82          1.79
Expenses after expense reductions (f)                                1.59          1.56          1.59          1.62          1.59
Net investment income                                                3.52          3.51          3.43          3.70          4.00
Portfolio turnover                                                      5            11            19            16            12
Net assets at end of period (000 Omitted)                         $17,217       $20,689       $24,306       $27,546       $26,183
- ---------------------------------------------------------------------------------------------------------------------------------

(d) Per share data are based on average shares outstanding.
(f) Ratios do not reflect reductions from fees paid indirectly.
(r) Certain expenses have been reduced without which performance would have been lower.
(s) From time to time the fund may receive proceeds from litigation settlements, without which performance would be lower.
(t) Total returns do not include any applicable sales charges.

SEE NOTES TO FINANCIAL STATEMENTS




FINANCIAL STATEMENTS      FINANCIAL HIGHLIGHTS, MFS(R) VIRGINIA MUNICIPAL BOND FUND

The financial highlights table is intended to help you understand the fund's financial performance for the past 5 years.
Certain information reflects financial results for a single fund share. The total returns in the table represent the
rate by which an investor would have earned (or lost) on an investment in the fund share class (assuming reinvestment of
all distributions) held for the entire period. This information has been audited by the fund's independent registered
public accounting firm, whose report, together with the fund's financial statements, are included in this report.


                                                                                         YEARS ENDED 3/31
                                                                 ----------------------------------------------------------------
CLASS A                                                              2006          2005          2004          2003          2002
                                                                                                            
Net asset value, beginning of period                               $11.52        $11.73        $11.61        $11.14        $11.36
- ---------------------------------------------------------------------------------------------------------------------------------
INCOME (LOSS) FROM INVESTMENT OPERATIONS
- ---------------------------------------------------------------------------------------------------------------------------------
Net investment income (d)                                           $0.51         $0.53         $0.53         $0.53         $0.54
Net realized and unrealized gain (loss) on investments              (0.12)        (0.21)         0.12          0.47         (0.22)
- ---------------------------------------------------------------------------------------------------------------------------------
Total from investment operations                                    $0.39         $0.32         $0.65         $1.00         $0.32
- ---------------------------------------------------------------------------------------------------------------------------------
LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS
- ---------------------------------------------------------------------------------------------------------------------------------
From net investment income                                         $(0.50)       $(0.53)       $(0.53)       $(0.53)       $(0.54)
- ---------------------------------------------------------------------------------------------------------------------------------
Net asset value, end of period                                     $11.41        $11.52        $11.73        $11.61        $11.14
- ---------------------------------------------------------------------------------------------------------------------------------
Total return (%)(r)(s)(t)                                            3.45          2.83          5.70          9.10          2.87
- ---------------------------------------------------------------------------------------------------------------------------------

RATIOS (%) (TO AVERAGE NET ASSETS) AND
SUPPLEMENTAL DATA:
- ---------------------------------------------------------------------------------------------------------------------------------
Expenses before expense reductions (f)                               1.15          1.10          1.13          1.13          1.12
Expenses after expense reductions (f)                                0.90          0.85          0.93          0.93          0.92
Net investment income                                                4.38          4.63          4.53          4.62          4.77
Portfolio turnover                                                     13            11            11            13            14
Net assets at end of period (000 Omitted)                        $277,633      $285,185      $301,218      $308,164      $299,088
- ---------------------------------------------------------------------------------------------------------------------------------


                                                                                         YEARS ENDED 3/31
                                                                 ----------------------------------------------------------------
CLASS B                                                              2006          2005          2004          2003          2002
                                                                                                            
Net asset value, beginning of period                               $11.51        $11.72        $11.60        $11.13        $11.35
- ---------------------------------------------------------------------------------------------------------------------------------
INCOME (LOSS) FROM INVESTMENT OPERATIONS
- ---------------------------------------------------------------------------------------------------------------------------------
Net investment income (d)                                           $0.43         $0.46         $0.45         $0.46         $0.47
Net realized and unrealized gain (loss) on investments              (0.11)        (0.21)         0.12          0.46         (0.22)
- ---------------------------------------------------------------------------------------------------------------------------------
Total from investment operations                                    $0.32         $0.25         $0.57         $0.92         $0.25
- ---------------------------------------------------------------------------------------------------------------------------------
LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS
- ---------------------------------------------------------------------------------------------------------------------------------
From net investment income                                         $(0.43)       $(0.46)       $(0.45)       $(0.45)       $(0.47)
- ---------------------------------------------------------------------------------------------------------------------------------
Net asset value, end of period                                     $11.40        $11.51        $11.72        $11.60        $11.13
- ---------------------------------------------------------------------------------------------------------------------------------
Total return (%)(r)(s)(t)                                            2.78          2.16          5.02          8.40          2.20

RATIOS (%) (TO AVERAGE NET ASSETS) AND
SUPPLEMENTAL DATA:
- ---------------------------------------------------------------------------------------------------------------------------------
Expenses before expense reductions (f)                               1.80          1.75          1.77          1.78          1.78
Expenses after expense reductions (f)                                1.55          1.50          1.57          1.58          1.58
Net investment income                                                3.73          3.98          3.88          3.97          4.12
Portfolio turnover                                                     13            11            11            13            14
Net assets at end of period (000 Omitted)                         $16,885       $19,637       $23,564       $25,470       $26,970
- ---------------------------------------------------------------------------------------------------------------------------------

SEE NOTES TO FINANCIAL STATEMENTS




FINANCIAL STATEMENTS      FINANCIAL HIGHLIGHTS, MFS(R) VIRGINIA MUNICIPAL BOND FUND - CONTINUED

                                                                                           YEARS ENDED 3/31
                                                                      -----------------------------------------------------------
CLASS C                                                                  2006         2005         2004         2003         2002
                                                                                                            
Net asset value, beginning of period                                   $11.52       $11.72       $11.61       $11.13       $11.36
- ---------------------------------------------------------------------------------------------------------------------------------
INCOME (LOSS) FROM INVESTMENT OPERATIONS
- ---------------------------------------------------------------------------------------------------------------------------------
Net investment income (d)                                               $0.43        $0.46        $0.45        $0.45        $0.47
Net realized and unrealized gain (loss) on investments                  (0.11)       (0.20)        0.11         0.48        (0.23)
- ---------------------------------------------------------------------------------------------------------------------------------
Total from investment operations                                        $0.32        $0.26        $0.56        $0.93        $0.24
- ---------------------------------------------------------------------------------------------------------------------------------
LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS
- ---------------------------------------------------------------------------------------------------------------------------------
From net investment income                                             $(0.43)      $(0.46)      $(0.45)      $(0.45)      $(0.47)
- ---------------------------------------------------------------------------------------------------------------------------------
Net asset value, end of period                                         $11.41       $11.52       $11.72       $11.61       $11.13
- ---------------------------------------------------------------------------------------------------------------------------------
Total return (%)(r)(s)(t)                                                2.78         2.25         4.93         8.49         2.10
- ---------------------------------------------------------------------------------------------------------------------------------

RATIOS (%) (TO AVERAGE NET ASSETS) AND
SUPPLEMENTAL DATA:
- ---------------------------------------------------------------------------------------------------------------------------------
Expenses before expense reductions (f)                                   1.80         1.75         1.77         1.78         1.77
Expenses after expense reductions (f)                                    1.55         1.50         1.57         1.58         1.57
Net investment income                                                    3.72         3.98         3.88         3.97         4.10
Portfolio turnover                                                         13           11           11           13           14
Net assets at end of period (000 Omitted)                             $12,995      $12,208      $13,338      $12,758      $10,619
- ---------------------------------------------------------------------------------------------------------------------------------

Any redemption fees charged by the fund during the 2005 fiscal year resulted in a per share impact of less than $0.01.
(d) Per share data are based on average shares outstanding.
(f) Ratios do not reflect reductions from fees paid indirectly.
(r) Certain expenses have been reduced without which performance would have been lower.
(s) From time to time the fund may receive proceeds from litigation settlements, without which performance would be lower.
(t) Total returns do not include any applicable sales charges.

SEE NOTES TO FINANCIAL STATEMENTS




FINANCIAL STATEMENTS      FINANCIAL HIGHLIGHTS, MFS(R) WEST VIRGINIA MUNICIPAL BOND FUND

The financial highlights table is intended to help you understand the fund's financial performance for the past 5 years.
Certain information reflects financial results for a single fund share. The total returns in the table represent the
rate by which an investor would have earned (or lost) on an investment in the fund share class (assuming reinvestment of
all distributions) held for the entire period. This information has been audited by the fund's independent registered
public accounting firm, whose report, together with the fund's financial statements, are included in this report.


                                                                                         YEARS ENDED 3/31
                                                                 ----------------------------------------------------------------
CLASS A                                                              2006          2005          2004          2003          2002
                                                                                                            
Net asset value, beginning of period                               $11.58        $11.82        $11.77        $11.32        $11.45
- ---------------------------------------------------------------------------------------------------------------------------------
INCOME (LOSS) FROM INVESTMENT OPERATIONS
- ---------------------------------------------------------------------------------------------------------------------------------
Net investment income (d)                                           $0.48         $0.51         $0.51         $0.55         $0.57
Net realized and unrealized gain (loss) on investments              (0.11)        (0.25)         0.05          0.46         (0.14)
- ---------------------------------------------------------------------------------------------------------------------------------
Total from investment operations                                    $0.37         $0.26         $0.56         $1.01         $0.43
- ---------------------------------------------------------------------------------------------------------------------------------
LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS
- ---------------------------------------------------------------------------------------------------------------------------------
From net investment income                                         $(0.48)       $(0.50)       $(0.51)       $(0.56)       $(0.56)
- ---------------------------------------------------------------------------------------------------------------------------------
Net asset value, end of period                                     $11.47        $11.58        $11.82        $11.77        $11.32
- ---------------------------------------------------------------------------------------------------------------------------------
Total return (%)(r)(s)(t)                                            3.21          2.28          4.84          9.04          3.79
- ---------------------------------------------------------------------------------------------------------------------------------

RATIOS (%) (TO AVERAGE NET ASSETS) AND
SUPPLEMENTAL DATA:
- ---------------------------------------------------------------------------------------------------------------------------------
Expenses before expense reductions (f)                               1.17          1.14          1.13          1.16          1.13
Expenses after expense reductions (f)                                0.92          0.89          0.93          0.96          0.93
Net investment income                                                4.16          4.35          4.33          4.71          4.97
Portfolio turnover                                                      7            14            17            13             2
Net assets at end of period (000 Omitted)                        $134,416      $134,459      $140,599      $139,564      $121,860
- ---------------------------------------------------------------------------------------------------------------------------------


                                                                                         YEARS ENDED 3/31
                                                                 ----------------------------------------------------------------
CLASS B                                                              2006          2005          2004          2003          2002
                                                                                                            
Net asset value, beginning of period                               $11.58        $11.82        $11.76        $11.31        $11.44
- ---------------------------------------------------------------------------------------------------------------------------------
INCOME (LOSS) FROM INVESTMENT OPERATIONS
- ---------------------------------------------------------------------------------------------------------------------------------
Net investment income (d)                                           $0.41         $0.43         $0.43         $0.47         $0.50
Net realized and unrealized gain (loss) on investments              (0.13)        (0.24)         0.06          0.46         (0.15)
- ---------------------------------------------------------------------------------------------------------------------------------
Total from investment operations                                    $0.28         $0.19         $0.49         $0.93         $0.35
- ---------------------------------------------------------------------------------------------------------------------------------
LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS
- ---------------------------------------------------------------------------------------------------------------------------------
From net investment income                                         $(0.40)       $(0.43)       $(0.43)       $(0.48)       $(0.48)
- ---------------------------------------------------------------------------------------------------------------------------------
Net asset value, end of period                                     $11.46        $11.58        $11.82        $11.76        $11.31
- ---------------------------------------------------------------------------------------------------------------------------------
Total return (%)(r)(s)(t)                                            2.45          1.62          4.25          8.34          3.12
- ---------------------------------------------------------------------------------------------------------------------------------

RATIOS (%) (TO AVERAGE NET ASSETS) AND
SUPPLEMENTAL DATA:
- ---------------------------------------------------------------------------------------------------------------------------------
Expenses before expense reductions (f)                               1.82          1.79          1.78          1.81          1.79
Expenses after expense reductions (f)                                1.57          1.54          1.58          1.61          1.59
Net investment income                                                3.51          3.71          3.68          4.06          4.31
Portfolio turnover                                                      7            14            17            13             2
Net assets at end of period (000 Omitted)                         $12,388       $14,334       $17,744       $19,443       $16,248
- ---------------------------------------------------------------------------------------------------------------------------------

Any redemption fees charged by the fund during the 2005 fiscal year resulted in a per share impact of less than $0.01.
(d) Per share data are based on average shares outstanding.
(f) Ratios do not reflect reductions from fees paid indirectly.
(r) Certain expenses have been reduced without which performance would have been lower.
(s) From time to time the fund may receive proceeds from litigation settlements, without which performance would be lower.
(t) Total returns do not include any applicable sales charges.

SEE NOTES TO FINANCIAL STATEMENTS



(1) BUSINESS AND ORGANIZATION

MFS Mississippi Municipal Bond Fund (Mississippi Fund), MFS New York Municipal
Bond Fund (New York Fund), MFS North Carolina Municipal Bond Fund (North
Carolina Fund), MFS Pennsylvania Municipal Bond Fund (Pennsylvania Fund), MFS
South Carolina Municipal Bond Fund (South Carolina Fund), MFS Tennessee
Municipal Bond Fund (Tennessee Fund), MFS Virginia Municipal Bond Fund
(Virginia Fund), and MFS West Virginia Municipal Bond Fund (West Virginia Fund)
are each a series of MFS Municipal Series Trust (the trust). The trust is
organized as a Massachusetts business trust and is registered under the
Investment Company Act of 1940, as amended, as an open-end management
investment company.

(2) SIGNIFICANT ACCOUNTING POLICIES

General - The preparation of financial statements in conformity with U.S.
generally accepted accounting principles requires management to make estimates
and assumptions that affect the reported amounts of assets and liabilities, and
disclosure of contingent assets and liabilities at the date of the financial
statements and the reported amounts of revenues and expenses during the
reporting period. Actual results could differ from those estimates. Because
each fund invests primarily in the securities of a single state and its
political subdivisions, each fund is vulnerable to the effects of changes in
the legal and economic environment of the particular state. Municipal
securities backed by current or anticipated revenues from a specific project or
specific assets can be negatively affected by the discontinuance of the
taxation supporting the projects or assets or the inability to collect revenues
for the project or from the assets. If the Internal Revenue Service determines
an issuer of a municipal security has not complied with applicable tax
requirements, the security could decline in value, interest from the security
could become taxable and the funds may be required to issue Forms 1099-DIV.

Investment Valuations - Debt instruments (other than short-term instruments),
including restricted debt instruments, are generally valued at an evaluated bid
price as reported by an independent pricing service. Values of debt instruments
obtained from pricing services can utilize both dealer-supplied valuations and
electronic data processing techniques which take into account factors such as
institutional-size trading in similar groups of securities, yield, quality,
coupon rate, maturity, type of issue, trading characteristics and other market
data. Short-term instruments with a maturity at issuance of 365 days or less
are generally valued at amortized cost, which approximates market value. Swaps
are generally valued on the basis of quotations from brokers and dealers.
Securities and other assets generally valued on the basis of information from
an independent pricing service may also be valued on the basis of information
from brokers and dealers. When pricing-service information or market quotations
are not readily available, securities are priced at fair value as determined
under the direction of the Board of Trustees.

Derivative Risk - Each fund may invest in derivatives for hedging or non-
hedging purposes. While hedging can reduce or eliminate losses, it can also
reduce or eliminate gains. When the funds use derivatives as an investment to
gain market exposure, or for hedging purposes, gains and losses from derivative
instruments may be substantially greater than the derivative's original cost.
Derivative instruments include swap agreements.

Swap Agreements - Each fund may enter into swap agreements. A swap is an
exchange of cash payments between the fund and another party. Net cash payments
are exchanged at specified intervals and are recorded as a realized gain or
loss in the Statement of Operations. The value of the swap is adjusted daily
and the change in value is recorded as unrealized appreciation or depreciation
in the Statement of Operations. Risks may arise upon entering into these
agreements from the potential inability of counterparties to meet the terms of
their contract and from unanticipated changes in the value of the financial
index on which the swap agreement is based.

Interest Rate Swap Agreements - Interest rate swap agreements are agreements to
exchange cash flows periodically based on a notional principal amount, such as
the exchange of fixed rate interest payments for floating rate interest
payments, which are based on a specific financial index, or the exchange of two
distinct floating rate payments. The net receivable or payable associated with
these payments is accrued daily and recorded as an unrealized gain or loss, and
any payments received or made are recorded as realized gains or losses, in the
Statement of Operations. The primary risk associated with interest rate swap
agreements is that unfavorable changes in the fluctuation of interest rates
could adversely impact the funds.

Short Term Fees - For purchases made on or after July 1, 2004 and before April
1, 2005, each fund charged a 2% redemption fee (which was retained by each
fund) on proceeds from Class A, Class B, and Class C shares redeemed or
exchanged within 5 business days following their acquisition (either by
purchase or exchange). Effective April 1, 2005, each fund will no longer charge
a redemption fee. See each fund's prospectus for details. Any redemption fees
charged are accounted for as an addition to paid-in capital.

Investment Transactions and Income - Investment transactions are recorded on
the trade date. Interest income is recorded on the accrual basis. All premium
and discount is amortized or accreted for financial statement purposes in
accordance with U.S. generally accepted accounting principles. All premium and
original issue discount is amortized or accreted for tax reporting purposes as
required by federal income tax regulations.

Each fund may receive proceeds from litigation settlements involving its
portfolio holdings. Any proceeds received are reflected in realized gain/loss
in the Statement of Operations, or in unrealized gain/loss if the security is
still held by the fund.

Legal fees and other related expenses incurred to preserve and protect the
value of a security owned are added to the cost of the security; other legal
fees are expensed. Capital infusions made directly to the security issuer,
which are generally non-recurring, incurred to protect or enhance the value of
high-yield debt securities, are reported as additions to the cost basis of the
security. Costs that are incurred to negotiate the terms or conditions of
capital infusions or that are expected to result in a plan of reorganization
are reported as realized losses. Ongoing costs incurred to protect or enhance
an investment, or costs incurred to pursue other claims or legal actions, are
expensed.

Fees Paid Indirectly - Each fund's custody fee is reduced according to an
arrangement that measures the value of cash deposited with the custodian by
each fund. This amount, for the year ended March 31, 2006, is shown as a
reduction of total expenses on the Statement of Operations.

Tax Matters and Distributions - Each fund intends to continue to qualify as a
regulated investment company, as defined under Subchapter M of the Internal
Revenue Code, and to distribute all of its taxable and tax-exempt income,
including realized capital gains. Accordingly, no provision for federal income
tax is required in the financial statements.

Distributions to shareholders are recorded on the ex-dividend date. Income and
capital gain distributions are determined in accordance with income tax
regulations, which may differ from generally accepted accounting principles.
Certain capital accounts in the financial statements are periodically adjusted
for permanent differences in order to reflect their tax character. These
adjustments have no impact on net assets or net asset value per share.
Temporary differences which arise from recognizing certain items of income,
expense, gain or loss in different periods for financial statement and tax
purposes will reverse at some time in the future. Distributions in excess of
net investment income or net realized gains are temporary overdistributions for
financial statement purposes resulting from differences in the recognition or
classification of income or distributions for financial statement and tax
purposes.

Book/tax differences primarily relate to amortization and accretion of debt
securities, wash sale loss deferrals, and treating a portion of the proceeds
from redemptions as a distribution for tax purposes.

The tax character of distributions declared to shareholders is as follows:



                                                           NORTH                      SOUTH                                    WEST
                           MISSISSIPPI     NEW YORK     CAROLINA  PENNSYLVANIA     CAROLINA    TENNESSEE      VIRGINIA     VIRGINIA
YEAR ENDED MARCH 31, 2006         FUND         FUND         FUND          FUND         FUND         FUND          FUND         FUND
                                                                                                        
Ordinary income (including
any short-term capital
gains)                             $--          $--     $398,095           $--          $--     $178,774           $--          $--
Tax-exempt income            3,825,714    7,075,051   14,172,501     4,383,989    6,716,613    4,915,444    13,450,458    6,029,196

Long-term capital gain              --      800,147      930,835            --           --      272,746            --           --
- -----------------------------------------------------------------------------------------------------------------------------------
Total distributions         $3,825,714   $7,875,198  $15,501,431    $4,383,989   $6,716,613   $5,366,964   $13,450,458   $6,029,196

YEAR ENDED MARCH 31, 2005
Ordinary income (including
any short-term capital
gains)                             $--          $--     $338,971           $--   $7,152,028     $194,393           $--      $35,541

Tax-exempt income            4,288,716    7,823,631   15,104,858     4,481,113       36,036    5,259,087    14,692,962    6,402,713

Long-term capital gain              --           --    1,184,575            --           --      713,987            --           --
- -----------------------------------------------------------------------------------------------------------------------------------
Total distributions         $4,288,716   $7,823,631  $16,628,404    $4,481,113   $7,188,064   $6,167,467   $14,692,962   $6,438,254

The federal tax cost and the tax basis components of distributable earnings were as follows:


                                                           NORTH                      SOUTH                                   WEST
                           MISSISSIPPI     NEW YORK     CAROLINA  PENNSYLVANIA     CAROLINA    TENNESSEE     VIRGINIA     VIRGINIA
AS OF MARCH 31, 2006              FUND         FUND         FUND          FUND         FUND         FUND         FUND         FUND
                                                                                                        
Cost of investments        $81,370,159 $153,098,806 $310,081,560  $105,130,780 $147,510,016 $108,427,579 $290,015,566  $137,513,232
- -----------------------------------------------------------------------------------------------------------------------------------
Gross appreciation          $3,355,431   $9,986,521  $18,739,736    $4,083,736   $8,658,413   $5,835,077  $14,375,942    $7,069,833

Gross depreciation            (116,477)    (150,846)    (210,640)     (132,159)    (121,926)     (78,937)    (391,833)    (103,947)
- -----------------------------------------------------------------------------------------------------------------------------------
Net unrealized
appreciation
(depreciation)              $3,238,954   $9,835,675  $18,529,096    $3,951,577   $8,536,487   $5,756,140  $13,984,109    $6,965,886
Undistributed ordinary
income                             $--      $42,588          $--           $--          $--          $--          $--           $--
Undistributed tax-exempt
income                         198,486       76,149      586,480       162,694      445,131      154,994      276,734       228,967
Undistributed long-term
capital gain                        --      528,821           --            --           --           --           --            --
Capital loss
carryforwards                 (317,125)          --           --      (190,380)    (615,121)          --           --      (221,741)
Post-October capital loss
deferral                       (21,979)          --           --            --           --           --      (69,610)           --
Other temporary differences   (283,657)    (466,763)    (964,966)     (262,134)    (390,175)    (562,666)  (1,116,101)     (415,320)

As of March 31, 2006, certain funds had available capital loss carryforwards to offset future realized gains. Such losses expire
as follows:


                                            MISSISSIPPI             PENNSYLVANIA           SOUTH CAROLINA            WEST VIRGINIA
EXPIRATION DATE                                    FUND                     FUND                     FUND                     FUND
                                                                                                             
March 31, 2009                                     $--                      $--                $(615,121)                $(75,960)
March 31, 2010                                      --                       --                       --                  (83,347)
March 31, 2012                                      --                 (190,380)                      --                       --
March 31, 2013                                (287,448)                      --                       --                  (62,434)
March 31, 2014                                 (29,677)                      --                       --                       --
- ----------------------------------------------------------------------------------------------------------------------------------
Total                                        $(317,125)               $(190,380)               $(615,121)               $(221,741)

Multiple Classes of Shares of Beneficial Interest - Each fund offers multiple classes of shares, which differ in their
respective distribution and service fees. All shareholders bear the common expenses of the fund based on the value of settled
shares outstanding of each class, without distinction between share classes. Dividends are declared separately for each class.
Differences in per share dividend rates are generally due to differences in separate class expenses. Class B shares will convert
to Class A shares approximately eight years after purchase.

(3) TRANSACTIONS WITH AFFILIATES

Investment Adviser - The trust has an investment advisory agreement with MFS to provide overall investment advisory and
administrative services, and general office facilities. The management fee is computed daily and paid monthly at an annual rate
of 0.55% of each fund's average daily net assets.

As part of a settlement agreement with the New York Attorney General concerning market timing and related matters, MFS has
agreed to reduce the management fee to 0.30% of each fund's average daily net assets for the period March 1, 2004 through
February 28, 2009. For the year ended March 31, 2006, this waiver amounted to the following for each fund and is reflected as a
reduction of total expenses in the Statement of Operations.


MISSISSIPPI       NEW YORK     NORTH CAROLINA       PENNSYLVANIA     SOUTH CAROLINA      TENNESSEE       VIRGINIA      WEST VIRGINIA
       FUND           FUND               FUND               FUND               FUND           FUND           FUND               FUND
                                                                                                       
   $219,717       $434,859           $866,378           $278,607           $399,362       $305,648       $783,646           $371,168

The management fee incurred for the year ended March 31, 2006 was equivalent to an annual effective rate of 0.30% of each fund's
average daily net assets.

For the Pennsylvania Fund, the investment adviser has contractually agreed to pay a portion of the fund's operating expenses
exclusive of management, distribution and service, and certain other fees and expenses, such that operating expenses do not
exceed 0.20% annually of the fund's average daily net assets. This contractual fee arrangement will continue until August 1,
2006. For the year ended March 31, 2006 this reduction amounted to $120,502 and is reflected as a reduction of total expenses in
the Statement of Operations.

Distributor - MFS Fund Distributors, Inc. (MFD), a wholly owned subsidiary of MFS, as distributor, received the following
amounts for the year ended March 31, 2006, as its portion of the initial sales charge on sales of Class A shares of the funds.

MISSISSIPPI       NEW YORK     NORTH CAROLINA       PENNSYLVANIA     SOUTH CAROLINA      TENNESSEE      VIRGINIA      WEST VIRGINIA
       FUND           FUND               FUND               FUND               FUND           FUND          FUND               FUND

    $36,917        $32,543            $48,878            $54,052            $53,030        $15,995       $54,548            $59,371

The Board of Trustees has adopted a distribution plan for certain class shares pursuant to Rule 12b-1 of the Investment Company
Act of 1940.

Each fund's distribution plan provides that the fund will pay MFD for services provided by MFD and financial intermediaries in
connection with the distribution and servicing of certain share classes. One component of the plan is a distribution fee paid to
MFD and another component of the plan is a service fee paid to MFD. MFD may subsequently pay all, or a portion, of the
distribution and/or service fees to financial intermediaries.

Distribution Fee Plan Table:


                                                                                CLASS A
                                     --------------------------------------------------------------------------------------------
                                                                                      TOTAL            ANNUAL        DISTRIBUTION
                                        DISTRIBUTION           SERVICE         DISTRIBUTION         EFFECTIVE         AND SERVICE
                                            FEE RATE          FEE RATE              PLAN(1)           RATE(2)                 FEE
                                                                                                                  
Mississippi Fund                               0.10%             0.25%                0.35%                --                 $--
New York Fund                                  0.10%             0.25%                0.35%             0.25%             306,731
North Carolina Fund                            0.10%             0.25%                0.35%             0.35%             969,752
Pennsylvania Fund                              0.10%             0.25%                0.35%             0.10%              71,057
South Carolina Fund                            0.10%             0.25%                0.35%             0.35%             458,345
Tennessee Fund                                 0.10%             0.25%                0.35%             0.35%             360,973
Virginia Fund                                  0.10%             0.25%                0.35%             0.35%             987,845
West Virginia Fund                             0.10%             0.25%                0.35%             0.35%             472,504


                                                                                CLASS B
                                     --------------------------------------------------------------------------------------------
                                                                                      TOTAL            ANNUAL        DISTRIBUTION
                                        DISTRIBUTION           SERVICE         DISTRIBUTION         EFFECTIVE         AND SERVICE
                                            FEE RATE          FEE RATE              PLAN(1)           RATE(2)                 FEE
                                                                                                                  
Mississippi Fund                               0.75%             0.25%                1.00%             0.76%             $84,973
New York Fund                                  0.75%             0.25%                1.00%             1.00%             330,385
North Carolina Fund                            0.75%             0.25%                1.00%             1.00%             366,281
Pennsylvania Fund                              0.75%             0.25%                1.00%             0.86%             347,368
South Carolina Fund                            0.75%             0.25%                1.00%             1.00%             287,788
Tennessee Fund                                 0.75%             0.25%                1.00%             1.00%             190,984
Virginia Fund                                  0.75%             0.25%                1.00%             1.00%             185,897
West Virginia Fund                             0.75%             0.25%                1.00%             1.00%             134,611


                                                                                CLASS C
                                     --------------------------------------------------------------------------------------------
                                                                                      TOTAL            ANNUAL        DISTRIBUTION
                                        DISTRIBUTION           SERVICE         DISTRIBUTION         EFFECTIVE         AND SERVICE
                                            FEE RATE          FEE RATE              PLAN(1)           RATE(2)                 FEE
                                                                                                                  
New York Fund                                  0.75%             0.25%                1.00%             1.00%            $181,680
North Carolina Fund                            0.75%             0.25%                1.00%             1.00%             328,032
Virginia Fund                                  0.75%             0.25%                1.00%             1.00%             126,012


                                                         NORTH                       SOUTH                                     WEST
                       MISSISSIPPI      NEW YORK      CAROLINA  PENNSYLVANIA      CAROLINA     TENNESSEE      VIRGINIA     VIRGINIA
                              FUND          FUND          FUND          FUND          FUND          FUND          FUND         FUND
                                                                                                   
Total Distribution and
Service Fees               $84,973      $818,796    $1,664,065      $418,425      $746,133      $551,957    $1,299,754     $607,115

(1) In accordance with the distribution plan for certain classes, each fund pays distribution and/or service fees up to these
    annual percentage rates of each class' average daily net assets.
(2) The annual effective rates represent actual fees incurred under the distribution plan for the year ended March 31, 2006
    based on each class' average daily net assets. Payment of the Mississippi Fund's 0.25% annual Class A service fee and 0.10%
    annual Class A distribution fee are not yet implemented and will commence on such date as the Trustees of the Trust may
    determine. Except in the case of the 0.25% annual Class B service fee paid by the Mississippi Fund upon the sale of Class B
    shares in the first year, payment of the Class B service fee will not be implemented until such date as the Trustees of the
    Trust may determine. Payment of the New York Fund's 0.10% annual Class A distribution fee is not yet implemented and will
    commence on such date as the Trustees of the Trust may determine. Payment of the Pennsylvania Fund's 0.10% annual Class A
    distribution fee is not yet implemented and will commence on such date as the Trustees of the Trust may determine. 0.10% of
    the Class A service fee is currently being paid by the Pennsylvania Fund. Payment of the remaining 0.15% of the Pennsylvania
    Fund's Class A service fee is not yet implemented and will commence on such date as the Trustees of the Trust may determine.
    Except in the case of the 0.25% annual Class B service fee paid by the Pennsylvania Fund upon the sale of Class B shares in
    the first year, the Class B service fee has been set at 0.10% annually and may be increased to a maximum of 0.25% annually
    on such date as the Trustees of the Trust may determine.

Certain Class A and Class C shares are subject to a contingent deferred sales charge in the event of a shareholder redemption
within 12 months of purchase. Class B shares are subject to a contingent deferred sales charge in the event of a shareholder
redemption within six years of purchase. All contingent deferred sales charges are paid to MFD and during the year ended March
31, 2006, were as follows:


                                                         NORTH                       SOUTH                                     WEST
                       MISSISSIPPI      NEW YORK      CAROLINA  PENNSYLVANIA      CAROLINA     TENNESSEE      VIRGINIA     VIRGINIA
CDSC IMPOSED                  FUND          FUND          FUND          FUND          FUND          FUND          FUND         FUND
                                                                                                     
Class A                        $--           $--           $--          $901          $137           $--        $3,586       $3,924
Class B                     12,550        63,111        78,328        79,310        41,905        32,750        28,120       28,095
Class C                        N/A         1,491         3,994           N/A           N/A           N/A         1,619          N/A

Shareholder Servicing Agent - Each fund pays a portion of shareholder servicing costs to MFS Service Center, Inc. (MFSC), a
wholly-owned subsidiary of MFS. MFSC receives a fee from the funds', for its services as shareholder servicing agent, set
periodically under the supervision of the funds' Board of Trustees. For the year ended March 31, 2006, each fund paid MFSC the
following fee, which equated to the following annual percentage of each fund's average daily net assets for shareholder
services.


                                                         NORTH                       SOUTH                                     WEST
                       MISSISSIPPI      NEW YORK      CAROLINA  PENNSYLVANIA      CAROLINA     TENNESSEE      VIRGINIA     VIRGINIA
                              FUND          FUND          FUND          FUND          FUND          FUND          FUND         FUND
                                                                                                     
Expenses paid              $92,562      $183,682      $365,689      $117,352      $168,397      $128,989      $330,601     $156,514
Percentage of average
daily net assets           0.1056%       0.1056%       0.1055%       0.1053%       0.1054%       0.1055%       0.1055%      0.1054%

MFSC also receives payment from each fund for out-of-pocket and sub-accounting expenses paid by MFSC on behalf of the funds. For
the year ended March 31, 2006, these costs amounted to the following:


                                                         NORTH                       SOUTH                                     WEST
                       MISSISSIPPI      NEW YORK      CAROLINA  PENNSYLVANIA      CAROLINA     TENNESSEE      VIRGINIA     VIRGINIA
                              FUND          FUND          FUND          FUND          FUND          FUND          FUND         FUND
                                                                                                     
                           $31,625       $51,023      $111,575       $27,359       $40,228       $28,805       $72,709      $31,652

Administrator - MFS provides certain financial, legal, shareholder communications, compliance, and other administrative services
to certain funds for which MFS acts as investment adviser. Under an administrative services agreement, the funds may partially
reimburse MFS the costs incurred to provide these services, subject to review and approval by the Board of Trustees. Each fund
is charged a fixed amount plus a fee based on calendar year average net assets. Effective July 1, 2005, each fund's annual fixed
amount is $10,000. The administrative services fee incurred for the year ended March 31, 2006 was equivalent to the following
annual effective rates of each fund's average daily net assets:


                                                         NORTH                       SOUTH                                     WEST
                       MISSISSIPPI      NEW YORK      CAROLINA  PENNSYLVANIA      CAROLINA     TENNESSEE      VIRGINIA     VIRGINIA
                              FUND          FUND          FUND          FUND          FUND          FUND          FUND         FUND
                                                                                                     
Percentage of average
daily net assets            0.0199%       0.0157%       0.0135%       0.0180%       0.0160%       0.0175%       0.0137%      0.0163%

Trustees' and Officers' Compensation - Each fund pays compensation to Independent Trustees in the form of a retainer, attendance
fees, and additional compensation to Board and Committee chairpersons. The funds do not pay compensation directly to Trustees
who are officers of the investment adviser, or to officers of each fund, all of whom receive remuneration for their services to
the funds from MFS. Certain officers and Trustees of the funds are officers or directors of MFS, MFD, and MFSC.

Each fund has an unfunded, defined benefit plan for retired Independent Trustees which resulted in the following pension expense
for the funds. These amounts are included in Independent trustees' compensation for the year ended March 31, 2006.


                                                         NORTH                       SOUTH                                     WEST
                       MISSISSIPPI      NEW YORK      CAROLINA  PENNSYLVANIA      CAROLINA     TENNESSEE      VIRGINIA     VIRGINIA
                              FUND          FUND          FUND          FUND          FUND          FUND          FUND         FUND
                                                                                                     
                            $1,161        $1,612        $3,141        $1,197        $3,096        $1,425        $3,127       $3,091

The deferred liability for retirement benefits payable to retired Trustees amounted to the following for each fund at March 31,
2006, and is included in payable for independent trustees' compensation.


                                                         NORTH                       SOUTH                                     WEST
                       MISSISSIPPI      NEW YORK      CAROLINA  PENNSYLVANIA      CAROLINA     TENNESSEE      VIRGINIA     VIRGINIA
                              FUND          FUND          FUND          FUND          FUND          FUND          FUND         FUND
                                                                                                     
                            $9,834       $12,845       $15,474        $9,716       $15,432       $12,801       $15,500      $15,429

Other - These funds and certain other MFS funds (the funds) have entered into a services agreement (the Agreement) which
provides for payment of fees by the funds to Tarantino LLC in return for the provision of services of an Independent Chief
Compliance Officer (ICCO) for the funds. The ICCO is an officer of the funds and the sole member of Tarantino LLC. The funds can
terminate the Agreement with Tarantino LLC at any time under the terms of the Agreement. For the year ended March 31, 2006, the
fees paid to Tarantino LLC amounted to the following:


                                                         NORTH                       SOUTH                                     WEST
                       MISSISSIPPI      NEW YORK      CAROLINA  PENNSYLVANIA      CAROLINA     TENNESSEE      VIRGINIA     VIRGINIA
                              FUND          FUND          FUND          FUND          FUND          FUND          FUND         FUND
                                                                                                     
                              $587        $1,172        $2,319          $747        $1,071          $820        $3,027         $995

MFS has agreed to reimburse the funds for a portion of the payments made by each fund to Tarantino LLC in the following amounts,
which are shown as a reduction of total expenses in the Statement of Operations. Additionally, MFS has agreed to bear all
expenses associated with office space, other administrative support, and supplies provided to the ICCO.


                                                         NORTH                       SOUTH                                     WEST
                       MISSISSIPPI      NEW YORK      CAROLINA  PENNSYLVANIA      CAROLINA     TENNESSEE      VIRGINIA     VIRGINIA
                              FUND          FUND          FUND          FUND          FUND          FUND          FUND         FUND
                                                                                                     
                              $584        $1,040        $1,889          $653          $972          $723        $1,860         $906

(4) PORTFOLIO SECURITIES

Purchases and sales of investments, other than U.S. government securities, purchased option transactions, and short-term
obligations were as follows:


                                                         NORTH                       SOUTH                                     WEST
                       MISSISSIPPI      NEW YORK      CAROLINA  PENNSYLVANIA      CAROLINA     TENNESSEE      VIRGINIA     VIRGINIA
                              FUND          FUND          FUND          FUND          FUND          FUND          FUND         FUND
                                                                                                     
Purchases               $7,370,638   $20,298,941   $27,904,787   $12,854,080   $20,123,471    $5,427,424   $40,721,663   $12,124,714
- -----------------------------------------------------------------------------------------------------------------------------------
Sales                   $9,479,866   $31,159,252   $37,060,077    $9,900,191   $22,517,387   $13,377,719   $48,080,889   $10,290,796
- -----------------------------------------------------------------------------------------------------------------------------------

(5) SHARES OF BENEFICIAL INTEREST

The Trust's Declaration permits the Trustees to issue an unlimited number of full and fractional shares of beneficial interest.
Transactions in each funds' shares were as follows:


                                             MISSISSIPPI FUND                                      NEW YORK FUND
                           ----------------------------------------------------  --------------------------------------------------
                                  YEAR ENDED                 YEAR ENDED                 YEAR ENDED                YEAR ENDED
                                MARCH 31, 2006             MARCH 31, 2005             MARCH 31, 2006            MARCH 31, 2005
                           -------------------------  -------------------------  -------------------------  -----------------------
                             SHARES       AMOUNT        SHARES       AMOUNT        SHARES       AMOUNT       SHARES       AMOUNT
                                                                                                
Shares sold
Class A                      866,381     $8,546,452     848,592     $8,374,011     653,127     $7,390,698     815,176   $9,246,436
Class B                       24,252        239,436      67,946        671,256     138,910      1,569,384     189,036    2,134,993
Class C                           --             --          --             --     134,687      1,526,215     254,356    2,882,371
- ----------------------------------------------------------------------------------------------------------------------------------
                             890,633     $8,785,888     916,538     $9,045,267     926,724    $10,486,297   1,258,568  $14,263,800

Shares issued to shareholders in reinvestment of distributions
Class A                      185,126     $1,824,861     202,129     $1,995,326     324,484     $3,670,111     341,492   $3,876,961

Class B                       21,153        208,716      26,931        266,210      74,060        834,700      82,381      932,304

Class C                           --             --          --             --      39,815        449,550      40,923      464,049
- -----------------------------------------------------------------------------------------------------------------------------------
                             206,279     $2,033,577     229,060     $2,261,536     438,359     $4,954,361     464,796   $5,273,314

Shares reacquired
Class A                   (1,380,138)  $(13,645,231) (1,181,606)  $(11,628,233) (1,469,796)  $(16,663,402) (1,439,174) $(16,299,898)
Class B                     (144,591)    (1,426,794)   (234,324)    (2,311,215)   (640,793)    (7,238,245)   (746,624)   (8,419,453)
Class C                           --             --          --             --    (387,465)    (4,383,903)   (450,082)   (5,098,504)
- -----------------------------------------------------------------------------------------------------------------------------------
                          (1,524,729)  $(15,072,025) (1,415,930)  $(13,939,448) (2,498,054)  $(28,285,550) (2,635,880) $(29,817,855)

Net change
Class A                     (328,631)   $(3,273,918)   (130,885)   $(1,258,896)   (492,185)   $(5,602,593)   (282,506)  $(3,176,501)

Class B                      (99,186)      (978,642)   (139,447)    (1,373,749)   (427,823)    (4,834,161)   (475,207)   (5,352,156)

Class C                           --             --          --             --    (212,963)    (2,408,138)   (154,803)   (1,752,084)
- -----------------------------------------------------------------------------------------------------------------------------------
                            (427,817)   $(4,252,560)   (270,332)   $(2,632,645) (1,132,971)  $(12,844,892)   (912,516) $(10,280,741)


                                           NORTH CAROLINA FUND                                   PENNSYLVANIA FUND
                           ----------------------------------------------------  --------------------------------------------------
                                  YEAR ENDED                 YEAR ENDED                 YEAR ENDED                YEAR ENDED
                                MARCH 31, 2006             MARCH 31, 2005             MARCH 31, 2006            MARCH 31, 2005
                           -------------------------  -------------------------  -------------------------  -----------------------
                             SHARES       AMOUNT        SHARES       AMOUNT        SHARES       AMOUNT       SHARES       AMOUNT
                                                                                                 
Shares sold
Class A                    1,314,537    $15,818,825   1,143,651    $13,851,656   1,258,762    $12,897,989     939,866    $9,572,613
Class B                      132,671      1,590,635     226,499      2,727,665     275,025      2,820,655     219,277     2,233,233
Class C                      271,600      3,270,481     350,544      4,238,404          --             --          --            --
- -----------------------------------------------------------------------------------------------------------------------------------
                           1,718,808    $20,679,941   1,720,694    $20,817,725   1,533,787    $15,718,644   1,159,143  $11,805,846

Shares issued to shareholders in reinvestment of distributions
Class A                      698,501     $8,393,304     801,691     $9,697,346     185,707     $1,901,237     199,352    $2,028,705
Class B                       69,832        838,029      89,784      1,084,499      87,173        894,888     103,442     1,054,750
Class C                       79,561        954,980      86,256      1,042,409          --             --          --            --
- -----------------------------------------------------------------------------------------------------------------------------------
                             847,894    $10,186,313     977,731    $11,824,254     272,880     $2,796,125     302,794    $3,083,455

Shares reacquired
Class A                   (2,554,557)  $(30,727,514) (3,418,210)  $(41,256,336)   (990,703)  $(10,143,698) (1,740,181) $(17,572,031)
Class B                     (807,609)    (9,719,958) (1,054,515)   (12,698,157)   (631,297)    (6,480,350)  (946,568)   (9,606,585)
Class C                     (375,266)    (4,513,810)   (560,837)    (6,768,295)         --             --         --            --
- -----------------------------------------------------------------------------------------------------------------------------------
                          (3,737,432)  $(44,961,282) (5,033,562)  $(60,722,788) (1,622,000)  $(16,624,048) (2,686,749) $(27,178,616)

Net change
Class A                     (541,519)   $(6,515,385) (1,472,868)  $(17,707,334)    453,766     $4,655,528   (600,963)  $(5,970,713)
Class B                     (605,106)    (7,291,294)   (738,232)    (8,885,993)   (269,099)    (2,764,807)  (623,849)   (6,318,602)
Class C                      (24,105)      (288,349)   (124,037)    (1,487,482)         --             --         --            --
- -----------------------------------------------------------------------------------------------------------------------------------
                          (1,170,730)  $(14,095,028) (2,335,137)  $(28,080,809)    184,667     $1,890,721  (1,224,812) $(12,289,315)


                                           SOUTH CAROLINA FUND                                     TENNESSEE FUND
                           ----------------------------------------------------  --------------------------------------------------
                                  YEAR ENDED                 YEAR ENDED                 YEAR ENDED                YEAR ENDED
                                MARCH 31, 2006             MARCH 31, 2005             MARCH 31, 2006            MARCH 31, 2005
                           -------------------------  -------------------------  -------------------------  -----------------------
                             SHARES       AMOUNT        SHARES       AMOUNT        SHARES       AMOUNT       SHARES       AMOUNT
                                                                                                 
Shares sold
Class A                    1,132,204    $14,046,582     950,794    $11,757,607     493,536     $5,305,262    807,064    $8,690,294
Class B                       85,307      1,056,145     141,911      1,753,969      79,543        857,100    100,093     1,078,899
- -----------------------------------------------------------------------------------------------------------------------------------
                           1,217,511    $15,102,727   1,092,705    $13,511,576     573,079     $6,162,362    907,157    $9,769,193

Shares issued to shareholders in reinvestment of distributions
Class A                      307,593     $3,815,307     331,066     $4,103,455     210,399     $2,255,583    305,347    $3,294,671
Class B                       54,579        676,705      71,169        881,385      40,963        439,012     55,569       599,037
- -----------------------------------------------------------------------------------------------------------------------------------
                             362,172     $4,492,012     402,235     $4,984,840     251,362     $2,694,595    360,916    $3,893,708

Shares reacquired
Class A                   (1,274,850)  $(15,823,297) (1,676,720)  $(20,679,951) (1,135,271)  $(12,170,537) (2,185,685) $(23,511,524)
Class B                     (510,226)    (6,331,745)   (623,153)    (7,698,788)   (422,094)    (4,536,883)   (442,829)   (4,764,261)
- -----------------------------------------------------------------------------------------------------------------------------------
                          (1,785,076)  $(22,155,042) (2,299,873)  $(28,378,739) (1,557,365)  $(16,707,420) (2,628,514) $(28,275,785)

Net change
Class A                      164,947     $2,038,592    (394,860)   $(4,818,889)   (431,336)   $(4,609,692) (1,073,274) $(11,526,559)
Class B                     (370,340)    (4,598,895)   (410,073)    (5,063,434)   (301,588)    (3,240,771)   (287,167)   (3,086,325)
- -----------------------------------------------------------------------------------------------------------------------------------
                            (205,393)   $(2,560,303)   (804,933)   $(9,882,323)   (732,924)   $(7,850,463) (1,360,441) $(14,612,884)

                                              VIRGINIA FUND                                      WEST VIRGINIA FUND
                           ----------------------------------------------------  --------------------------------------------------
                                  YEAR ENDED                 YEAR ENDED                 YEAR ENDED                YEAR ENDED
                                MARCH 31, 2006             MARCH 31, 2005             MARCH 31, 2006            MARCH 31, 2005
                           -------------------------  -------------------------  -------------------------  -----------------------
                             SHARES       AMOUNT        SHARES       AMOUNT        SHARES       AMOUNT       SHARES       AMOUNT
                                                                                                 
Shares sold

Class A                    1,481,053    $17,100,137   1,462,579    $16,951,475     767,854     $8,913,846    649,571    $7,566,744
Class B                      138,191      1,599,934     170,166      1,965,225      78,236        910,206     79,286       924,193
Class C                      152,773      1,767,443     153,081      1,777,770          --             --         --            --
- -----------------------------------------------------------------------------------------------------------------------------------
                           1,772,017    $20,467,514   1,785,826    $20,694,470     846,090     $9,824,052    728,857    $8,490,937

Shares issued to shareholders in reinvestment of distributions
Class A                      610,984     $7,063,585     708,987     $8,198,785     325,732     $3,779,345    363,462    $4,229,391
Class B                       33,680        389,119      43,470        502,212      23,338        270,745     32,505       377,803
Class C                       26,043        300,916      29,691        343,223          --             --         --            --
- -----------------------------------------------------------------------------------------------------------------------------------
                             670,707     $7,753,620     782,148     $9,044,220     349,070     $4,050,090    395,967    $4,607,194

Shares reacquired
Class A                   (2,517,056)  $(29,092,777) (3,103,223)  $(35,811,466)   (981,278)  $(11,390,785) (1,296,913) $(15,044,930)
Class B                     (396,940)    (4,587,647)   (518,696)    (5,990,259)   (258,946)    (3,004,395)  (375,140)   (4,362,666)
Class C                      (99,697)    (1,152,730)   (260,460)    (2,995,655)         --             --         --            --
- -----------------------------------------------------------------------------------------------------------------------------------
                          (3,013,693)  $(34,833,154) (3,882,379)  $(44,797,380) (1,240,224)  $(14,395,180) (1,672,053) $(19,407,596)

Net change
Class A                     (425,019)   $(4,929,055)   (931,657)  $(10,661,206)    112,308     $1,302,406   (283,880)  $(3,248,795)
Class B                     (225,069)    (2,598,594)   (305,060)    (3,522,822)   (157,372)    (1,823,444)  (263,349)   (3,060,670)
Class C                       79,119        915,629     (77,688)      (874,662)         --             --         --            --
- -----------------------------------------------------------------------------------------------------------------------------------
                            (570,969)   $(6,612,020) (1,314,405)  $(15,058,690)    (45,064)     $(521,038)  (547,229)  $(6,309,465)

(6) LINE OF CREDIT

Each fund and other affiliated funds participate in a $1 billion unsecured line of credit provided by a syndication of banks
under a credit agreement. Borrowings may be made for temporary financing needs. Interest is charged to each fund, based on its
borrowings, at a rate equal to the Federal Reserve funds rate plus 0.35%. In addition, a commitment fee, based on the average
daily, unused portion of the line of credit, is allocated among the participating funds at the end of each calendar quarter. The
commitment fee allocated to each fund for the year ended March 31, 2006 ranged from $563 to $2,216, and is included in
miscellaneous expense on the Statement of Operations. None of the funds had significant borrowings during the year ended March
31, 2006.

(7) CONCENTRATION OF CREDIT RISK

Since each fund invests a substantial portion of its assets in issuers located in one state, it will be more susceptible to
factors adversely affecting issuers of that state than would be a comparable tax-exempt mutual fund that invests nationally. The
risk associated with such factors is mitigated by the fact that a percentage of securities in a portfolio of investments are
backed by letters of credit or bond insurance of various financial institutions and financial guaranty assurance agencies. At
March 31, 2006, the percentage of holdings that carried such enhancements were as follows:


                                                    NORTH                       SOUTH                                     WEST
                  MISSISSIPPI      NEW YORK      CAROLINA  PENNSYLVANIA      CAROLINA     TENNESSEE      VIRGINIA     VIRGINIA
                         FUND          FUND          FUND          FUND          FUND          FUND          FUND         FUND
                                                                                                
Total:                 78.86%        39.05%        49.67%        68.60%        73.75%        68.48%        40.51%       79.57%

For each fund, the greatest exposure to any one institution or agency did not exceed the following percentages of total
investments as of March 31, 2006:


                                                    NORTH                       SOUTH                                     WEST
                  MISSISSIPPI      NEW YORK      CAROLINA  PENNSYLVANIA      CAROLINA     TENNESSEE      VIRGINIA     VIRGINIA
                         FUND          FUND          FUND          FUND          FUND          FUND          FUND         FUND
                                                                                                
Single Insurer:        23.11%        15.26%        17.41%        19.26%        22.84%        36.53%        10.71%       35.43%



To the Trustees and Shareholders of MFS Municipal Series Trust:

We have audited the accompanying statements of assets and liabilities,
including the portfolios of investments, of MFS Mississippi Municipal Bond
Fund, MFS New York Municipal Bond Fund, MFS North Carolina Municipal Bond Fund,
MFS Pennsylvania Municipal Bond Fund, MFS South Carolina Municipal Bond Fund,
MFS Tennessee Municipal Bond Fund, MFS Virginia Municipal Bond Fund and MFS
West Virginia Municipal Bond Fund, certain of the portfolios of MFS Municipal
Series Trust (the "Trust"), as of March 31, 2006, and the related statements of
operations for the year then ended, the statements of changes in net assets for
each of the two years in the period then ended, and the financial highlights
for each of the five years in the period then ended. These financial statements
and financial highlights are the responsibility of the Trust's management. Our
responsibility is to express an opinion on these financial statements and
financial highlights based on our audits.

We conducted our audits in accordance with the standards of the Public Company
Accounting Oversight Board (United States). Those standards require that we
plan and perform the audit to obtain reasonable assurance about whether the
financial statements and financial highlights are free of material
misstatement. The Trust is not required to have, nor were we engaged to
perform, an audit of its internal control over financial reporting. Our audits
included consideration of internal control over financial reporting as a basis
for designing audit procedures that are appropriate in the circumstances, but
not for the purpose of expressing an opinion on the effectiveness of the
Trust's internal control over financial reporting. Accordingly, we express no
such opinion. An audit also includes examining, on a test basis, evidence
supporting the amounts and disclosures in the financial statements, assessing
the accounting principles used and significant estimates made by management, as
well as evaluating the overall financial statement presentation. Our procedures
included confirmation of securities owned as of March 31, 2006, by
correspondence with the custodian and brokers; where replies were not received
from brokers, we performed other auditing procedures. We believe that our
audits provide a reasonable basis for our opinion.

In our opinion, such financial statements and financial highlights present
fairly, in all material respects, the financial positions of MFS Mississippi
Municipal Bond Fund, MFS New York Municipal Bond Fund, MFS North Carolina
Municipal Bond Fund, MFS Pennsylvania Municipal Bond Fund, MFS South Carolina
Municipal Bond Fund, MFS Tennessee Municipal Bond Fund, MFS Virginia Municipal
Bond Fund and MFS West Virginia Municipal Bond Fund as of March 31, 2006, the
results of their operations for the year then ended, the changes in their net
assets for each of the two years in the period then ended, and their financial
highlights for each of the five years in the period then ended, in conformity
with accounting principles generally accepted in the United States of America.

DELOITTE & TOUCHE LLP

Boston, Massachusetts
May 23, 2006



TRUSTEES AND OFFICERS -- IDENTIFICATION AND BACKGROUND

The Trustees and officers of the Trust, as of May 1, 2006, are listed below, together with their principal occupations during the
past five years. (Their titles may have varied during that period.) The address of each Trustee and officer is 500 Boylston
Street, Boston, Massachusetts 02116.


                                                  TRUSTEE/
                          POSITION(s) HELD        OFFICER                      PRINCIPAL OCCUPATIONS DURING THE PAST FIVE YEARS &
NAME, DATE OF BIRTH           WITH FUND           SINCE(H)                                OTHER DIRECTORSHIPS(J)
                                                               ---------------------------------------------------------------------
                                                      
INTERESTED TRUSTEES
Robert J. Manning(k)     Trustee               February 2004   Massachusetts Financial Services Company, Chief Executive Officer,
(born 10/20/63)                                                President, Chief Investment Officer and Director

Robert C. Pozen(k)       Trustee               February 2004   Massachusetts Financial Services Company, Chairman (since February
(born 08/08/46)                                                2004); Secretary of Economic Affairs, The Commonwealth of
                                                               Massachusetts (January 2002 to December 2002); Fidelity
                                                               Investments, Vice Chairman (June 2000 to December 2001); Fidelity
                                                               Management & Research Company (investment adviser), President
                                                               (March 1997 to July 2001); Bell Canada Enterprises
                                                               (telecommunications), Director; Medtronic, Inc. (medical
                                                               technology), Director; Telesat (satellite communications),
                                                               Director

INDEPENDENT TRUSTEES
J. Atwood Ives           Trustee and Chair of  February 1992   Private investor; Eastern Enterprises (diversified services company),
(born 05/01/36)          Trustees                              Chairman, Trustee and Chief Executive Officer (until November 2000)

Robert E. Butler(n)      Trustee               January 2006    Consultant - regulatory and compliance matters (since July 2002);
(born 11/29/41)                                                PricewaterhouseCoopers LLP (professional services firm), Partner
                                                               (November 2000 until June 2002)

Lawrence H. Cohn, M.D.   Trustee               August 1993     Brigham and Women's Hospital, Senior Cardiac Surgeon, Chief of
(born 03/11/37)                                                Cardiac Surgery (until 2005); Harvard Medical School, Professor of
                                                               Surgery; Brigham and Women's Hospital Physicians' Organization,
                                                               Chair (2000 to 2004)

David H. Gunning         Trustee               January 2004    Cleveland-Cliffs Inc. (mining products and service provider), Vice
(born 05/30/42)                                                Chairman/ Director (since April 2001); Encinitos Ventures (private
                                                               investment company), Principal (1997 to April 2001); Lincoln
                                                               Electric Holdings, Inc. (welding equipment manufacturer), Director

William R. Gutow         Trustee               December 1993   Private investor and real estate consultant; Capitol Entertainment
(born 09/27/41)                                                Management Company (video franchise), Vice Chairman

Michael Hegarty          Trustee               December 2004   Retired; AXA Financial (financial services and insurance), Vice
(born 12/21/44)                                                Chairman and Chief Operating Officer (until May 2001); The Equitable
                                                               Life Assurance Society (insurance), President and Chief Operating
                                                               Officer (until May 2001)

Lawrence T. Perera       Trustee               July 1981       Hemenway & Barnes (attorneys), Partner
(born 06/23/35)

J. Dale Sherratt         Trustee               August 1993     Insight Resources, Inc. (acquisition planning specialists),
(born 09/23/38)                                                President; Wellfleet Investments (investor in health care companies),
                                                               Managing General Partner (since 1993); Cambridge Nutraceuticals
                                                               (professional nutritional products), Chief Executive Officer (until
                                                               May 2001)

Laurie J. Thomsen        Trustee               March 2005      Private investor; Prism Venture Partners (venture capital),
(born 08/05/57)                                                Co-founder and General Partner (until June 2004); St. Paul Travelers
                                                               Companies (commercial property liability insurance), Director

Robert W. Uek            Trustee               January 2006    Retired (since 1999); PricewaterhouseCoopers LLP (professional
(born 05/18/41)                                                services firm), Partner (until 1999); Consultant to investment
                                                               company industry (since 2000); TT International Funds (mutual fund
                                                               complex), Trustee(2000 until 2005); Hillview Investment Trust II
                                                               Funds (mutual fund complex), Trustee (2000 until 2005)

OFFICERS
Maria F. Dwyer(k)        President             November 2005   Massachusetts Financial Services Company, Executive Vice President
(born 12/01/58)                                                and Chief Regulatory Officer (since March 2004); Fidelity Management
                                                               & Research Company, Vice President (prior to March 2004); Fidelity
                                                               Group of Funds, President and Treasurer (prior to March 2004)

Tracy Atkinson(k)        Treasurer             September 2005  Massachusetts Financial Services Company, Senior Vice President
(born 12/30/64)                                                (since September 2004); PricewaterhouseCoopers LLP, Partner (prior
                                                               to September 2004)

Christopher R. Bohane(k) Assistant Secretary   July 2005       Massachusetts Financial Services Company, Vice President and Senior
(born 1/18/74)           and Assistant Clerk                   Counsel (since April 2003); Kirkpatrick & Lockhart LLP (law firm),
                                                               Associate (prior to April 2003); Nvest Services Company, Assistant
                                                               Vice President and Associate Counsel (prior to January 2001)

Ethan D. Corey(k)        Assistant Secretary   July 2005       Massachusetts Financial Services Company, Special Counsel (since
(born 11/21/63)          and Assistant Clerk                   December 2004); Dechert LLP (law firm), Counsel (prior to December
                                                               2004)

David L. DiLorenzo(k)    Assistant Treasurer   July 2005       Massachusetts Financial Services Company, Vice President (since
(born 8/10/68)                                                 June 2005); JP Morgan Investor Services, Vice President (January
                                                               2001 to June 2005); State Street Bank, Vice President and Corporate
                                                               Audit Manager (prior to January 2001)

Timothy M. Fagan(k)      Assistant Secretary   September 2005  Massachusetts Financial Services Company, Vice President and Senior
(born 7/10/68)           and Assistant Clerk                   Counsel (since September 2005); John Hancock Advisers, LLC, Vice
                                                               President and Chief Compliance Officer (September 2004 to August
                                                               2005), Senior Attorney(prior to September 2004); John Hancock Group
                                                               of Funds, Vice President and Chief Compliance Officer (September
                                                               2004 to December 2004)

Mark D. Fischer(k)       Assistant Treasurer   July 2005       Massachusetts Financial Services Company, Vice President (since May
(born 10/27/70)                                                2005); JP Morgan Investment Management Company, Vice President
                                                               (prior to May 2005)

Ellen Moynihan(k)        Assistant Treasurer   April 1997      Massachusetts Financial Services Company, Senior
(born 11/13/57)                                                Vice President

Susan S. Newton(k)       Assistant Secretary   May 2005        Massachusetts Financial Services Company, Senior Vice President and
(born 03/07/50)          and Assistant Clerk                   Associate General Counsel (since April 2005); John Hancock Advisers,
                                                               LLC, Senior Vice President, Secretary and Chief Legal Officer
                                                               (prior to April 2005); John Hancock Group of Funds, Senior Vice
                                                               President, Secretary and Chief Legal Officer (prior to April 2005)

Susan A. Pereira(k)      Assistant Secretary   July 2005       Massachusetts Financial Services Company, Vice President and Senior
(born 11/05/70)          and Assistant Clerk                   Counsel (since June 2004); Bingham McCutchen LLP (law firm),
                                                               Associate (January 2001 to June 2004); Preti, Flaherty, Beliveau,
                                                               Pachios & Haley, LLC, Associate (prior to January 2001)

Mark N. Polebaum(k)      Secretary and Clerk   January 2006    Massachusetts Financial Services Company, Executive Vice President,
(born 05/01/52)                                                General Counsel and Secretary (since January 2006); Wilmer Cutler
                                                               Pickering Hale and Dorr LLP (law firm), Partner (prior to January
                                                               2006)

Frank L. Tarantino       Independent Chief     June 2004       Tarantino LLC (provider of compliance services), Principal (since
(born 03/07/44)          Compliance Officer                    June 2004); CRA Business Strategies Group (consulting services),
                                                               Executive Vice President (April 2003 to June 2004); David L. Babson
                                                               & Co. (investment adviser), Managing Director, Chief Administrative
                                                               Officer and Director (February 1997 to March 2003)

James O. Yost(k)         Assistant Treasurer   September 1990  Massachusetts Financial Services Company, Senior Vice President
(born 06/12/60)

- --------------
(h) Date first appointed to serve as Trustee/officer of an MFS fund. Each Trustee has served continuously since appointment
    unless indicated otherwise.
(j) Directorships or trusteeships of companies required to report to the Securities and Exchange Commission (i.e., "public
    companies").
(k) "Interested person" of the Trust within the meaning of the Investment Company Act of 1940 (referred to as the 1940 Act),
    which is the principal federal law governing investment companies like the fund, as a result of position with MFS. The
    address of MFS is 500 Boylston Street, Boston, Massachusetts 02116.
(n) In 2004 and 2005, Mr. Butler provided consulting services to the independent compliance consultant retained by MFS pursuant
    to its settlement with the SEC concerning market timing and related matters. The terms of that settlement required that
    compensation and expenses related to the independent compliance consultant be borne exclusively by MFS and, therefore, MFS
    paid Mr. Butler for the services he rendered to the independent compliance consultant. In 2004 and 2005, MFS paid Mr. Butler
    a total of $351,119.29.

Each Trustee and officer holds office until his or her successor is chosen and qualified or until his or her earlier death,
resignation, retirement or removal. Messrs. Butler, Sherratt and Uek and Ms. Thomsen are members of the Trust's Audit Committee.

Each of the Trust's Trustees and officers holds comparable positions with certain other funds of which MFS or a subsidiary is the
investment adviser or distributor, and, in the case of the officers, with certain affiliates of MFS. As of December 31, 2005,
each Trustee served as a board member of 98 funds within the MFS Family of Funds.

The Trust held a shareholders' meeting in 2005, and will hold a shareholders' meeting at least once every five years thereafter,
to elect Trustees.

The Statement of Additional Information contains further information about the Trustees and is available without charge upon
request by calling 1-800-225-2606.

- -----------------------------------------------------------------------------------------------------------------------------------

INVESTMENT ADVISER                                      CUSTODIAN
Massachusetts Financial Services Company                State Street Bank and Trust Company
500 Boylston Street, Boston, MA                         225 Franklin Street, Boston, MA 02110
02116-3741
                                                        INDEPENDENT REGISTERED PUBLIC
DISTRIBUTOR                                             ACCOUNTING FIRM
MFS Fund Distributors, Inc.                             Deloitte & Touche LLP
500 Boylston Street, Boston, MA                         200 Berkeley Street, Boston, MA 02116
02116-3741

PORTFOLIO MANAGER
Michael Dawson



BOARD REVIEW OF INVESTMENT ADVISORY AGREEMENT

A discussion regarding the Board's most recent review and renewal of the Fund's
investment advisory agreement is available by clicking on the fund's name under
"Select a fund" on the MFS Web site (mfs.com).

PROXY VOTING POLICIES AND INFORMATION

A general description of the MFS funds' proxy voting policies and procedures is
available without charge, upon request, by calling 1-800-225-2606, by visiting
the Proxy Voting section of mfs.com or by visiting the SEC's Web site at
http://www.sec.gov.

Information regarding how the fund voted proxies relating to portfolio
securities during the most recent twelve-month period ended June 30 is
available without charge by visiting the Proxy Voting section of mfs.com or by
visiting the SEC's Web site at http://www.sec.gov.

QUARTERLY PORTFOLIO DISCLOSURE

The fund will file a complete schedule of portfolio holdings with the
Securities and Exchange Commission (the Commission) for the first and third
quarters of each fiscal year on Form N-Q. The fund's Form N-Q may be reviewed
and copied at the:

  Public Reference Room
  Securities and Exchange Commission
  100 F Street, NE,
  Room 1580
  Washington, D.C. 20549

Information on the operation of the Public Reference Room may be obtained by
calling the Commission at 1-202-551-5850. The fund's Form N-Q is available on
the EDGAR database on the Commission's Internet Web site at http://
www.sec.gov, and copies of this information may be obtained, upon payment of a
duplicating fee, by electronic request at the following e-mail address:
publicinfo@sec.gov or by writing the Public Reference Section at the above
address.

A shareholder can also obtain the quarterly portfolio holdings report at
mfs.com.

FEDERAL TAX INFORMATION (unaudited)

The funds will notify shareholders of amounts for use in preparing 2006 income
tax forms in January 2007. The following information is provided pursuant to
provisions of the Internal Revenue Code.

The funds below designated the following amounts as capital gain dividends paid
during the fiscal year.

                                                 CAPITAL GAINS

                        New York Fund                  882,849
                        North Carolina Fund            930,835
                        Tennessee Fund                 315,108
                        Virginia Fund                   56,016

Of the dividends paid from net investment income during the fiscal year, the
following percentages were designated as exempt interest dividends for federal
income tax purposes. If each fund had earned income on private activity bonds,
a portion of the dividends paid may be considered a tax preference item for
purposes of computing a shareholder's alternative minimum tax.

                                               EXEMPT INTEREST
                                                     DIVIDENDS

                        Mississippi Fund               100.00%
                        New York Fund                  100.00%
                        North Carolina Fund            100.00%
                        Pennsylvania Fund              100.00%
                        South Carolina Fund            100.00%
                        Tennessee Fund                  99.78%
                        Virginia Fund                  100.00%
                        West Virginia Fund             100.00%


CONTACT INFORMATION

INVESTOR SERVICE

Write to us at: MFS Service Center, Inc.
                P.O. Box 55824
                Boston, MA 02205-5824


                                                                           
Type of Information                         Phone number                         Hours, Eastern Time
- -------------------------------------------------------------------------------------------------------------------
General information                         1-800-225-2606                       8 a.m. to 8 p.m., any business day
- -------------------------------------------------------------------------------------------------------------------
Speech- or hearing-impaired                 1-800-637-6576                       9 a.m. to 5 p.m., any business day
- -------------------------------------------------------------------------------------------------------------------
Share prices, account balances, exchanges   1-800-MFS-TALK (1-800-637-8255)
or stock and bond outlooks                  touch-tone required                  24 hours a day, 365 days a year
- -------------------------------------------------------------------------------------------------------------------


M F S(SM)
INVESTMENT MANAGEMENT(R)

MFS Investment Management(R)
MFS(R) investment products are offered through MFS Fund Distributors, Inc., 500
Boylston Street, Boston, MA 02116.
                                                           MST-B-ANN-05/06 30M



MFS(R) MUNICIPAL INCOME FUND                                            3/31/06

ANNUAL REPORT
- -------------------------------------------------------------------------------

LETTER FROM THE CEO                               1
- ---------------------------------------------------
PORTFOLIO COMPOSITION                             2
- ---------------------------------------------------
MANAGEMENT REVIEW                                 3
- ---------------------------------------------------
PERFORMANCE SUMMARY                               4
- ---------------------------------------------------
EXPENSE TABLE                                     6
- ---------------------------------------------------
PORTFOLIO OF INVESTMENTS                          8
- ---------------------------------------------------
FINANCIAL STATEMENTS                             27
- ---------------------------------------------------
NOTES TO FINANCIAL STATEMENTS                    34
- ---------------------------------------------------
REPORT OF INDEPENDENT REGISTERED
PUBLIC ACCOUNTING FIRM                           41
- ---------------------------------------------------
TRUSTEES AND OFFICERS                            42
- ---------------------------------------------------
BOARD REVIEW OF INVESTMENT ADVISORY AGREEMENT    47
- ---------------------------------------------------
PROXY VOTING POLICIES AND INFORMATION            47
- ---------------------------------------------------
QUARTERLY PORTFOLIO DISCLOSURE                   47
- ---------------------------------------------------
FEDERAL TAX INFORMATION                          47
- ---------------------------------------------------
CONTACT INFORMATION                      BACK COVER
- ---------------------------------------------------

THE REPORT IS PREPARED FOR THE GENERAL INFORMATION OF
SHAREHOLDERS. IT IS AUTHORIZED FOR DISTRIBUTION TO
PROSPECTIVE INVESTORS ONLY WHEN PRECEDED OR
ACCOMPANIED BY A CURRENT PROSPECTUS.
                                                       M F S(SM)
                                                       INVESTMENT MANAGEMENT(R)


LETTER FROM THE CEO

[Photo of Robert J. Manning]

Dear Shareholders,
It has been said that change is the only constant in life. As investors have
seen, that theme is still accurate today as we recently have experienced
shifting economic cycles because of natural disasters and political
instability around the globe.

Markets worldwide have fluctuated in the past year as devastating hurricanes
had a dramatic effect on the international economy, particularly on oil
prices. We witnessed political unrest in the Middle East, highlighted by
instability in Iraq, and in Africa, the usually stable Nigeria also
experienced violence. As a result, energy prices have bounced up and down,
with crude oil prices at one point topping a record $70 per barrel.

Such cycles are not uncommon and in fact have almost become the norm in our
everyday lives. What does all of this mean to you as an investor? In times like
these, it helps to know that you're working with a seasoned investment
professional who has experience to guide you through difficult times. At
MFS(R), we believe our investment management team has the knowledge and
confidence to navigate through difficult cycles and at the same time see
through adversity to find investment opportunities for our clients and
shareholders.

Our investment management process, honed over 80 years, combines a unique
concept of teamwork with our unwavering focus on the long term. We firmly
believe that the best way to realize long-term financial goals - be it a
college education, a comfortable retirement, or a secure family legacy - is to
follow a three-pronged approach that focuses on longer time horizons. Allocate
holdings across the major asset classes - including stocks, bonds, and cash.
Diversify within each class to take advantage of different market segments and
investing styles. Rebalance assets regularly to maintain a desired asset
allocation. Of course, these strategies cannot guarantee a profit or protect
against a loss. This long-term approach requires diligence and patience, two
traits that in our experience are essential to capitalizing on the many
opportunities the financial markets can offer - through both up and down
economic cycles.

    Respectfully,

/s/ Robert J. Manning

    Robert J. Manning
    Chief Executive Officer and Chief Investment Officer
    MFS Investment Management(R)

    May 15, 2006

The opinions expressed in this letter are those of MFS, and no forecasts can
be guaranteed.


PORTFOLIO COMPOSITION

              Bonds                                      99.3%
              Cash & Other Net Assets                     0.7%

              TOP 5 BOND INDUSTRIES (i)

              Health/Hospitals                           19.6%
              ------------------------------------------------
              General Obligations/Schools                 9.1%
              ------------------------------------------------
              General Obligations/General Purpose         7.7%
              ------------------------------------------------
              Municipal-Owned Utilities                   6.4%
              ------------------------------------------------
              Water/Sewer                                 5.7%
              ------------------------------------------------

              CREDIT QUALITY OF BONDS (r)

              AAA                                        36.4%
              ------------------------------------------------
              AA                                         11.7%
              ------------------------------------------------
              A                                          16.0%
              ------------------------------------------------
              BBB                                        20.6%
              ------------------------------------------------
              BB                                          4.1%
              ------------------------------------------------
              B                                           1.9%
              ------------------------------------------------
              CCC                                         0.4%
              ------------------------------------------------
              Not Rated                                   8.9%
              ------------------------------------------------

              PORTFOLIO FACTS

              Average Duration (d)                         5.9
              ------------------------------------------------
              Average Life (m)                       14.4 yrs.
              ------------------------------------------------
              Average Maturity (m)                   16.8 yrs.
              ------------------------------------------------
              Average Credit Quality of
              Rated Securities (a)                          A+
              ------------------------------------------------
              Average Short Term Credit Quality            A-1
              ------------------------------------------------

(a) The Average Credit Quality of Rated Securities is based upon a market
    weighted average of portfolio holdings that are rated by public rating
    agencies.
(d) Duration is a measure of how much a bond price is likely to fluctuate with
    general changes in interest rates, e.g., if rates rise 1.00%, a fund with a
    5-year duration is likely to lose about 5.00% of its value.
(i) For purposes of this graphical presentation, the bond component includes
    both accrued interest amounts and the equivalent exposure from any
    derivative holdings, if applicable.
(m) The average maturity shown is calculated using the final stated maturity on
    the portfolio's holdings without taking into account any holdings which
    have been pre-refunded to an earlier date or which have a mandatory put
    date prior to the stated maturity. The average life shown takes into
    account these earlier dates.
(r) Each security is assigned a rating from Moody's Investors Service. If not
    rated by Moody's, the rating will be that assigned by Standard & Poor's.
    Likewise, if not assigned a rating by Standard & Poor's, it will be based
    on the rating assigned by Fitch, Inc. For those portfolios that hold a
    security which is not rated by any of the three agencies, the security is
    considered Not Rated. Holdings in U.S. Treasuries and government agency
    mortgage-backed securities, if any, are included in a "AAA"-rating
    category. Percentages are based on the total market value of investments as
    of 3/31/06.

Percentages are based on net assets as of 3/31/06, unless otherwise noted.

The portfolio is actively managed, and current holdings may be different.


MANAGEMENT REVIEW

SUMMARY OF RESULTS

For the twelve months ended March 31, 2006, Class A shares of the MFS
Municipal Income Fund provided a total return of 4.18%, at net asset value. In
comparison, the fund's benchmark, the Lehman Brothers Municipal Bond Index
(the Lehman Index), returned 3.81%.

CONTRIBUTORS TO PERFORMANCE

The fund benefited from holding lower-quality "BBB"-rated(s) securities and
below-investment-grade debt. During the period, spreads in these credit
sectors narrowed due to strong demands for higher-yielding securities, causing
prices on these securities to appreciate. (The Lehman Index is composed
primarily of higher-grade securities with no bonds rated lower than "BBB").

Strong security selection in the utilities sector also bolstered relative
returns. A combination of security selection and overweighted positions in the
health care sector also helped relative performance.

DETRACTORS FROM PERFORMANCE

Yield curve(y) positioning had a small negative effect on relative results.
Overweighting the short-to-intermediate portion of the curve (represented by
bonds with durations(d) of 0- to 8- years) detracted as this area
underperformed the index. Additionally, underweighting the longer end of the
curve (represented by bonds with durations of 11- to 14- years) hindered
relative results as rates in that area decreased over the reporting period.

Respectively,

Geoffrey L. Schechter
Portfolio Manager

(d) Duration is a measure of how much a bond's price is likely to fluctuate
    with general changes in interest rates, e.g., if rates rise 1.00%, a bond
    with a 5-year duration is likely to lose about 5.00% of its value.
(s) Bonds rated by S&P as "BBB" or higher are considered investment grade;
    bonds rated "BB" or lower are considered non-investment grade.
(y) A yield curve graphically depicts the yields of different maturity bonds of
    the same credit quality and type. A normal yield curve is upward sloping,
    with short-term rates lower than long-term rates.

The views expressed in this report are those of the portfolio manager only
through the end of the period of the report as stated on the cover and do not
necessarily reflect the views of MFS or any other person in the MFS
organization. These views are subject to change at any time based on market
and other conditions, and MFS disclaims any responsibility to update such
views. These views may not be relied upon as investment advice or an
indication of trading intent on behalf of any MFS portfolio. References to
specific securities are not recommendations of such securities, and may not be
representative of any MFS portfolio's current or
future investments.


PERFORMANCE SUMMARY THROUGH 3/31/06

THE FOLLOWING CHART ILLUSTRATES THE HISTORICAL PERFORMANCE OF THE FUND'S
ORIGINAL SHARE CLASS IN COMPARISON TO ITS BENCHMARK. PERFORMANCE RESULTS
INCLUDE ANY APPLICABLE CONTINGENT DEFERRED SALES CHARGE AND REFLECT THE
PERCENTAGE CHANGE IN NET ASSET VALUE, INCLUDING REINVESTMENT OF DIVIDENDS AND
CAPITAL GAINS DISTRIBUTIONS. THE PERFORMANCE OF OTHER SHARE CLASSES
WILL BE GREATER THAN OR LESS THAN THAT OF THE CLASS DEPICTED BELOW. BENCHMARK
COMPARISONS ARE UNMANAGED; DO NOT REFLECT SALES CHARGES, COMMISSIONS OR
EXPENSES; AND CANNOT BE INVESTED IN DIRECTLY. (SEE NOTES TO PERFORMANCE
SUMMARY.)

PERFORMANCE DATA SHOWN REPRESENTS PAST PERFORMANCE AND IS NO GUARANTEE OF
FUTURE RESULTS. INVESTMENT RETURN AND PRINCIPAL VALUE FLUCTUATE SO YOUR
SHARES, WHEN SOLD, MAY BE WORTH MORE OR LESS THAN THE ORIGINAL COST; CURRENT
PERFORMANCE MAY BE LOWER OR HIGHER THAN QUOTED. FOR MOST RECENT MONTH-END
PERFORMANCE, PLEASE VISIT MFS.COM. THE PERFORMANCE SHOWN DOES NOT REFLECT THE
DEDUCTION OF TAXES, IF ANY, THAT A SHAREHOLDER WOULD PAY ON FUND DISTRIBUTIONS
OR THE REDEMPTION OF FUND SHARES.

GROWTH OF A HYPOTHETICAL $10,000 INVESTMENT

                              MFS Municipal      Lehman Brothers
                             Income Fund --      Municipal Bond
                                Class A              Index

              3/96             $ 9,525              $10,000
              3/97               9,933               10,547
              3/98              11,086               11,677
              3/99              11,658               12,400
              3/00              11,524               12,390
              3/01              12,568               13,744
              3/02              12,917               14,261
              3/03              13,950               15,671
              3/04              14,919               16,590
              3/05              15,439               17,032
              3/06              16,085               17,682

TOTAL RETURNS THROUGH 3/31/06

AVERAGE ANNUAL WITHOUT SALES CHARGE

   Share class     Class inception date      1-yr        5-yr       10-yr
- ---------------------------------------------------------------------------
        A                 9/07/93               4.18%      5.06%      5.38%
- ---------------------------------------------------------------------------
        B                12/29/86               3.40%      4.27%      4.58%
- ---------------------------------------------------------------------------
        C                 1/03/94               3.41%      4.29%      4.61%
- ---------------------------------------------------------------------------

AVERAGE ANNUAL

Comparative benchmarks
- ---------------------------------------------------------------------------
Average general municipal debt fund (l)         3.48%      4.44%      4.97%
- ---------------------------------------------------------------------------
Lehman Brothers Municipal Bond Index (f)        3.81%      5.17%      5.86%
- ---------------------------------------------------------------------------

AVERAGE ANNUAL WITH SALES CHARGE

   Share class                               1-yr        5-yr       10-yr
- ---------------------------------------------------------------------------
        A                                      -0.77%      4.04%      4.87%
With Initial Sales Charge (4.75%)
- ---------------------------------------------------------------------------
        B                                      -0.57%      3.93%      4.58%
With CDSC (Declining over six years from 4% to 0%)
- ---------------------------------------------------------------------------
        C                                       2.41%      4.29%      4.61%
With CDSC (1% for 12 months) (x)
- ---------------------------------------------------------------------------

CDSC - Contingent Deferred Sales Charge.
(f) Source: FactSet Research Systems, Inc.
(l) Source: Lipper Inc., an independent firm that reports mutual fund
    performance.
(x) Assuming redemption within one year from the end of the prior month of
    purchase.

INDEX DEFINITION

Lehman Brothers Municipal Bond Index - a market-value-weighted index
representative of the tax-exempt bond market.

It is not possible to invest directly in an index.

NOTES TO PERFORMANCE SUMMARY

Performance results reflect any applicable expense subsidies and waivers in
effect during the periods shown. Without such subsidies and waivers the fund's
performance results would be less favorable. Please see the prospectus and
financial statements for complete details.

A portion of income may be subject to state, federal, and/or alternative
minimum tax. Capital gains, if any, are subject to a capital gains tax.

From time to time the fund may receive proceeds from litigation settlements,
without which performance would be lower.


EXPENSE TABLE

FUND EXPENSES BORNE BY THE SHAREHOLDERS DURING THE PERIOD,
OCTOBER 1, 2005 THROUGH MARCH 31, 2006.

As a shareholder of the fund, you incur two types of costs: (1) transaction
costs, including sales charges (loads) on certain purchase or redemption
payments and redemption fees on certain exchanges and redemptions, and (2)
ongoing costs, including management fees; distribution and service (12b-1)
fees; and other trust expenses. This example is intended to help you
understand your ongoing costs (in dollars) of investing in the fund and to
compare these costs with the ongoing costs of investing in other mutual funds.

The example is based on an investment of $1,000 invested at the beginning
of the period and held for the entire period October 1, 2005 through
March 31, 2006.

ACTUAL EXPENSES

The first line for each share class in the following table provides
information about actual account values and actual expenses. You may use the
information in this line, together with the amount you invested, to estimate
the expenses that you paid over the period. Simply divide your account value
by $1,000 (for example, an $8,600 account value divided by $1,000 = 8.6), then
multiply the result by the number in the first line under the heading entitled
"Expenses Paid During Period" to estimate the expenses you paid on your
account during this period.

HYPOTHETICAL EXAMPLE FOR COMPARISON PURPOSES

The second line for each share class in the following table provides
information about hypothetical account values and hypothetical expenses based
on the fund's actual expense ratio and an assumed rate of return of 5% per
year before expenses, which is not the fund's actual return. The hypothetical
account values and expenses may not be used to estimate the actual ending
account balance or expenses you paid for the period. You may use this
information to compare the ongoing costs of investing in the fund and other
funds. To do so, compare this 5% hypothetical example with the 5% hypothetical
examples that appear in the shareholder reports of the other funds.

Please note that the expenses shown in the table are meant to highlight your
ongoing costs only and do not reflect any transactional costs, such as sales
charges (loads) or redemption fees. Therefore, the second line for each share
class in the table is useful in comparing ongoing costs only, and will not
help you determine the relative total costs of owning different funds. In
addition, if these transactional costs were included, your costs would have
been higher.

- -------------------------------------------------------------------------------
                                                                       Expenses
                                                                     Paid During
                         Annualized    Beginning        Ending        Period(p)
Share                      Expense   Account Value   Account Value    10/01/05-
Class                       Ratio      10/01/05        3/31/06         3/31/06
- --------------------------------------------------------------------------------
        Actual              0.81%     $1,000.00       $1,011.80         $4.06
  A     ------------------------------------------------------------------------
        Hypothetical (h)    0.81%     $1,000.00       $1,020.89         $4.08
- --------------------------------------------------------------------------------
        Actual              1.56%     $1,000.00       $1,008.10         $7.81
  B    -------------------------------------------------------------------------
        Hypothetical (h)    1.56%     $1,000.00       $1,017.15         $7.85
- --------------------------------------------------------------------------------
        Actual              1.57%     $1,000.00       $1,009.20         $7.86
  C     ------------------------------------------------------------------------
        Hypothetical (h)    1.57%     $1,000.00       $1,017.10         $7.90
- --------------------------------------------------------------------------------

(h) 5% class return per year before expenses.

(p) Expenses paid is equal to each class' annualized expense ratio, as shown
    above, multiplied by the average account value over the period, multiplied
    by the number of days in the period, divided by the number of days in the
    year. Expenses paid do not include any applicable sales charges (loads) or
    redemption fees. If these transaction costs had been included, your costs
    would have been higher.



PORTFOLIO OF INVESTMENTS - 3/31/06


The Portfolio of Investments is a complete list of all
securities owned by your fund. It is categorized by broad-based
asset classes.


Municipal Bonds - 98.0%
- --------------------------------------------------------------------------------------------------
ISSUER                                                               SHARES/PAR         VALUE ($)
- --------------------------------------------------------------------------------------------------
Airport & Port Revenue - 2.7%
- --------------------------------------------------------------------------------------------------
                                                                                
Chicago, IL, O'Hare International Airport Rev. (2nd Lien
Passenger Facility D), AMBAC, 5.5%, 2019                         $    350,000         $    373,618
Chicago, IL, O'Hare International Airport Rev., RITES, FSA,
7.461%, 2022 (z)(v)                                                 1,500,000            1,760,940
Chicago, IL, O'Hare International Airport Rev., Third Lien,
"A", FGIC, 5%, 2033                                                   235,000              242,668
Chicago, IL, O'Hare International Airport Rev., Third Lien,
"A", MBIA, 5%, 2029                                                   950,000              984,020
Indianapolis, IN, Local Public Improvement (Airport Authority
Project), "I", MBIA, 5%, 2034                                         200,000              201,818
Louisville & Jefferson County, KY, Regional Airport Authority,
"A", MBIA, 6.5%, 2017                                               3,000,000            3,146,280
Miami-Dade County, FL, Aviation Revenue, "A", CIFG, 5%, 2038          500,000              509,455
New York City, NY, City Industrial Development Agency, Special
Facilities Rev. (Terminal One Group), 5.5%, 2024                      195,000              204,885
Oklahoma City, OK, Airport Trust, "B", FSA, 5.75%, 2017             1,080,000            1,141,733
                                                                                      ------------
                                                                                      $  8,565,417
- --------------------------------------------------------------------------------------------------
Chemicals - 0.3%
- --------------------------------------------------------------------------------------------------
Red River Authority, TX, Pollution Control Rev. (Celanese
Project), 6.7%, 2030                                             $  1,000,000         $  1,058,970
- --------------------------------------------------------------------------------------------------
General Obligations - General Purpose - 7.6%
- --------------------------------------------------------------------------------------------------
Chicago, IL (Lakefront Millennium Parking Facilities), MBIA,
5%, 2018                                                         $  4,000,000         $  4,180,600
Chicago, IL (Lakefront Millennium Parking Facilities), MBIA,
0% to 2006, 5.7% to 2025                                              645,000              699,174
Commonwealth of Massachusetts, 5.875%, 2009 (c)                     3,205,000            3,448,965
Commonwealth of Puerto Rico, ROLS, FGIC, 7.763%, 2015 (z)(v)        3,000,000            3,674,340
Cranston, RI, FGIC, 6.375%, 2009 (c)                                  200,000              220,028
Houston County, AL, AMBAC, 6.25%, 2009 (c)                            850,000              937,482
Huntsville, AL, Capital Improvement Warrants, "C", MBIA,
5%, 2024                                                              195,000              203,227
Interlocken Metropolitan District, CO, Improvement, "C", XLCA,
0%, 2027                                                              510,000              148,828
Kane Kendall County, IL, Capital Appreciation, "E", FGIC,
0%, 2023                                                            1,360,000              567,759
Kane Kendall County, IL, Capital Appreciation, "E", FGIC,
0%, 2025                                                            1,335,000              497,381
Massachusetts State Consolidated Loan, "C", 5%, 2025                1,390,000            1,452,522
Mobile County, AL, 6%, 2009 (c)                                       800,000              856,976
New York City, NY, "J", 5%, 2030                                      320,000              329,254
New York City, NY, "J", MBIA, 5%, 2017                              2,000,000            2,077,340
San Antonio, TX, 5%, 2020                                             700,000              719,047
Southlake, TX, AMBAC, 0%, 2009 (c)                                  3,185,000            1,219,218
Southlake, TX, AMBAC, 0%, 2009 (c)                                  3,150,000            1,127,826
State of Illinois, MBIA, 5.5%, 2025                                   110,000              115,243
State of Wisconsin, "C", 6%, 2010 (c)                               1,200,000            1,302,468
                                                                                      ------------
                                                                                      $ 23,777,678
- --------------------------------------------------------------------------------------------------
General Obligations - Improvement - 1.6%
- --------------------------------------------------------------------------------------------------
Birmingham, AL, "A", 5.75%, 2017                                 $  1,000,000         $  1,079,260
Worcester, MA, FSA, 6%, 2010 (c)                                    3,475,000            3,802,936
                                                                                      ------------
                                                                                      $  4,882,196
- --------------------------------------------------------------------------------------------------
General Obligations  - Schools - 9.0%
- --------------------------------------------------------------------------------------------------
Adams 12 Five Star Schools, CO, "B", FGIC, 0%, 2025              $    490,000         $    183,495
De Soto, TX, Independent School District, School Building, PSF,
0%, 2031                                                              380,000              103,109
De Soto, TX, Independent School District, School Building, PSF,
0%, 2034                                                              285,000               65,365
De Soto, TX, Independent School District, School Building, PSF,
0%, 2036                                                              380,000               78,557
Detroit, MI, City School District, "B", FGIC, 5%, 2009 (c)          2,000,000            2,093,860
Dudley-Charlton, MA, Regional School District, RITES, FGIC,
6.542%, 2013 (z)(v)                                                 1,495,000            1,792,565
Ennis, TX, Independent School District, Capital Appreciation,
"N", PSF, 0%, 2028                                                    200,000               63,736
Ennis, TX, Independent School District, Capital Appreciation,
"N", PSF, 0%, 2029                                                    385,000              120,574
Ennis, TX, Independent School District, Capital Appreciation,
"N", PSF, 0%, 2031                                                    380,000              103,109
Ferris, TX, Independent School District, PSF, 5.5%, 2034              640,000              687,462
Florida State Board of Education Capital Outlay, Public
Education, "A", 5%, 2019                                            1,000,000            1,033,150
Fresno, CA, Unified School District, MBIA, 6.55%, 2020              1,225,000            1,429,881
Goose Creek, TX, Consolidated School District, PSF,
5%, 2009 (c)                                                        2,500,000            2,588,925
Houston, TX, Independent School District, RITES,
6.519%, 2017 (z)(v)                                                 2,325,000            2,527,740
Keller, TX, Independent School District, PSF, 6%, 2017                225,000              244,521
Knox County, KY, Independent School District, XLCA, 5.5%, 2029        640,000              697,875
Lancaster, TX, Independent School District, Capital
Appreciation, FSA, 0%, 2025                                           275,000              106,959
Lancaster, TX, Independent School District, Capital
Appreciation, FSA, 0%, 2014 (c)                                       485,000              168,266
Lancaster, TX, Independent School District, Capital
Appreciation, FSA, 0%, 2026                                           275,000              101,340
Lancaster, TX, Independent School District, Capital
Appreciation, FSA, 0%, 2014 (c)                                       430,000              140,279
Leander, TX, Independent School District, Capital Appreciation,
Refunding, School Building, FGIC, 0%, 2026                            900,000              316,404
Leander, TX, Independent School District, Capital Appreciation,
Refunding, School Building, FGIC, 0%, 2031                            910,000              237,055
Leander, TX, Independent School District, PSF, 0%, 2018             2,500,000            1,252,550
Manchester, NH, School Facilities Rev., MBIA, 5.5%, 2027              215,000              247,332
Manchester, NH, School Facilities Rev., MBIA, 5.5%, 2028              215,000              247,577
Manistee, MI, Area Public Schools, FGIC, 5.75%, 2009 (c)              700,000              742,756
Marshall, MI, Public School District, 5.5%, 2011 (c)                  500,000              540,780
Phenix City, AL, AMBAC, 5.65%, 2021                                 1,500,000            1,625,025
Philadelphia, PA, School District, MBIA, 6%, 2010 (c)                 750,000              811,598
Roma, TX, Independent School District, PSF, 5.875%, 2010 (c)        1,705,000            1,852,295
San Jose Evergreen, CA, Community College District, Election
2004, "A", MBIA, 0%, 2028                                             740,000              233,418
Wattsburg, PA, Public School Building Authority Rev., Capital
Appreciation, MBIA, 0%, 2029                                        2,150,000              710,317
Williamson County, TN, Rural School, 6.125%, 2010 (c)               1,665,000            1,809,239
Williamson County, TN, Rural School, 6.125%, 2010 (c)               1,765,000            1,917,902
Wylie, TX, Independent School District, PSF, 5.25%, 2029            1,080,000            1,138,352
                                                                                      ------------
                                                                                      $ 28,013,368
                                                                                      ------------
Healthcare Revenue - Hospitals - 19.3%
- --------------------------------------------------------------------------------------------------
Allegheny County, PA, Hospital Development Authority Rev. (West
Penn Allegheny Health), 9.25%, 2030                              $    650,000         $    776,068
Allegheny County, PA, Hospital Development Authority Rev. (West
Penn Allegheny Health), "B", 9.25%, 2022                              350,000              417,883
Baldwin County, AL, Eastern Shore Health Care Authority Rev
(Thomas Hospital), 5.75%, 2008 (c)                                    600,000              634,890
Baxter County, AR, Hospital Rev., 5.375%, 2014                      1,000,000            1,030,160
Chemung County, NY, Civic Facilities Rev. (St. Joseph's
Hospital-Elmira), "A", 6%, 2013                                       600,000              598,698
Colorado Health Facilities Authority Rev. (Portercare Adventist
Health Systems), 6.625%, 2011 (c)                                     500,000              574,250
Cuyahoga County, OH, Hospital Facilities Rev. (Canton, Inc.),
7.5%, 2030                                                            900,000              994,365
Denver, CO, Health & Hospital Authority Rev., 5.375%, 2018            300,000              305,199
Denver, CO, Health & Hospital Authority Rev., "A", 6%, 2023           500,000              529,625
District of Columbia, Health & Hospital Authority Rev. (Medstar
University Hospital), "D", 6.875%, 2007 (c)                           700,000              719,586
Fulton County, NY, Industrial Development Agency, Civic
Facilities Rev. (Nathan Littauer Hospital), "A", 5.75%, 2009          205,000              204,461
Gainesville & Hall County, GA, Hospital Authority Rev
(Northeast Georgia Health System, Inc.), 5.5%, 2031                   445,000              459,151
Gulfport, MS, Hospital Facilities Rev. (Memorial Hospital),
5.75%, 2031                                                           500,000              511,965
Henrico County, VA, Industrial Development Authority Rev. (Bon
Secours) RIBS, FSA, 8.431%, 2027 (v)                                5,000,000            6,441,900
Highlands County, FL, Health Facilities Authority Rev
(Adventist/Sunbelt Hospital), 6%, 2011 (c)                            350,000              376,863
Illinois Health Facilities Authority Rev. (Condell Medical
Center), 6.35%, 2015                                                1,000,000            1,064,600
Illinois Health Facilities Authority Rev. (Decatur Memorial
Hospital), 5.75%, 2024                                                350,000              364,336
Illinois Health Facilities Authority Rev. (Passavant Memorial
Area Hospital Associates), 6%, 2024                                   335,000              360,363
Illinois Health Facilities Authority Rev. (Riverside Health
Systems), 5.75%, 2022                                                 650,000              670,111
Illinois Health Facilities Authority Rev. (Sinai Health), FHA,
5.15%, 2037                                                           640,000              658,509
Indiana Health Facilities Financing Authority, Hospital Rev
(Deaconess Hospital), "A", AMBAC, 5.375%, 2034                        565,000              598,714
Indiana Health Facilities Financing Authority, Hospital Rev
(Clarian Health), "A", 5%, 2039                                       760,000              753,890
Indiana Health Facilities Financing Authority, Hospital Rev
(Munster Medical Research Foundation, Inc.), 6.375%, 2031             500,000              524,985
Indiana Health Facilities Financing Authority, Hospital Rev
(Munster Medical Research Foundation, Inc.), 6.375%, 2021           1,700,000            1,786,156
Indiana Health Facilities Financing Authority, Hospital Rev
(Riverview Hospital), 5.25%, 2014                                     400,000              407,772
Indiana Health Facilities Financing Authority, Hospital Rev
(Riverview Hospital), 6.125%, 2031                                    250,000              261,128
Kentucky Economic Development Finance Authority, Health Systems
Rev. (Norton Healthcare, Inc.), 6.5%, 2020                          1,250,000            1,357,113
Kentucky Economic Development Finance Authority, Health Systems
Rev. (Norton Healthcare, Inc.), 6.625%, 2028                          250,000              271,195
Kentucky Economic Development Finance Authority, Refunding &
Improvement, "A", MBIA, 5%, 2018                                    2,400,000            2,488,656
Knox County, TN, Health Educational Hospital Facility (Baptist
Health Systems, East Tennessee), 6.375%, 2022                       1,000,000            1,052,080
Lauderdale County & Florence, AL (Coffee Health Group), "A",
MBIA, 5.25%, 2019                                                   1,100,000            1,145,199
Macomb County, MI, Hospital Finance Authority Rev. (Mount
Clemens General Hospital), 5.75%, 2025                              1,000,000            1,024,690
Marion County, FL, Hospital District Rev. (Monroe Hospital),
5.625%, 2019                                                          750,000              781,410
Marshall County, AL, Health Care Rev., "A", 6.25%, 2022               500,000              532,250
Martin County, FL, Health Facilities Rev. (Martin Memorial
Medical Center), "B", 5.75%, 2022                                     850,000              900,932
Maryland Health & Higher Educational Facilities Authority Rev.
(Medstar Health), 5.5%, 2033                                          305,000              316,142
Maryland Health & Higher Educational Facilities Authority Rev.
(University of Maryland Medical System), 6.75%, 2010 (c)            1,000,000            1,122,520
Massachusetts Health & Educational Facilities Authority Rev
(Caritas Christi), 6.5%, 2012                                         400,000              433,388
Massachusetts Health & Educational Facilities Authority Rev
(Caritas Christi), 5.7%, 2015                                       1,000,000            1,039,900
Massachusetts Health & Educational Facilities Authority Rev
(Partners Healthcare Systems), 5.75%, 2021                            400,000              436,212
Mecosta County, MI, General Hospital Rev., 6%, 2018                   300,000              305,700
Miami Beach, FL, Health Facilities Rev. (Mount Sinai Medical
Center), "A", 6.7%, 2019                                              750,000              823,583
Michigan Hospital Finance Authority Rev. (Memorial Healthcare
Center), 5.75%, 2015                                                  800,000              835,944
Montgomery, AL, Special Care Facilities, Financing Authority
Rev. (Baptist Health), "A-2", MBIA, 0% to 2007, 5% to 2014 (c)      1,270,000            1,239,279
Mount Lebanon, PA, Hospital Authority Rev. (St. Clair Memorial
Hospital), 5.625%, 2032                                               375,000              390,454
Nassau County, NY, Industrial Development Agency, Civic
Facilities Rev. (North Shore Health System), 5.875%, 2011             330,000              346,843
New Hampshire Health & Educational Facilities Authority Rev
(Covenant Health), 6.5%, 2017                                         870,000              969,876
New Hampshire Health & Educational Facilities Authority Rev
(Exeter Hospital), 6%, 2024                                           500,000              546,405
New Jersey Health Care Facilities (Palisades Medical Center),
6.5%, 2021                                                            500,000              543,550
North Texas Health Facilities Development Corp. Rev. (United
Regional Health Care System, Inc.), 6%, 2023                        1,000,000            1,072,070
Ohio County, WV, County Commission Health System Rev. (Ohio
Valley Medical Center), 5.75%, 2013                                   900,000              856,098
Oklahoma Development Finance Authority Rev. (Comanche County
Hospital), 6%, 2014                                                   600,000              657,750
Oklahoma Development Finance Authority Rev. (Comanche County
Hospital), 6.6%, 2031                                                 255,000              276,624
Rhode Island Health & Education Building Rev., Hospital
Financing (Lifespan Obligated Group), "A", FSA, 5%, 2032            1,120,000            1,151,282
Rhode Island Health & Education Building Rev., Hospital
Financing (Lifespan Obligated Group), 6.5%, 2012 (c)                1,500,000            1,717,740
Royston, GA, Hospital Authority Rev. (Ty Cobb Healthcare
Systems, Inc.), 6.5%, 2027                                            290,000              271,501
Shelby County, TN, Educational & Housing Facilities Board
Hospital Rev. (Methodist Healthcare), 6%, 2012 (c)                    300,000              335,394
Shelby County, TN, Educational & Housing Facilities Board
Hospital Rev. (Methodist Healthcare), 6%, 2012 (c)                    500,000              558,990
South Carolina Jobs & Economic Development Authority, Hospital
Facilities Rev. (Palmetto Health Alliance), 6.25%, 2031               500,000              538,840
Steubenville, OH, Hospital Rev. (Trinity Hospital),
6.375%, 2020                                                          300,000              328,236
Stillwater, OK, Medical Center Authority (Stillwater Medical
Center), 6.5%, 2007 (c)                                             1,000,000            1,049,920
Suffolk County, NY, Industrial Development Agency, Civic
Facilities Rev. (Huntington Hospital), "C", 5.875%, 2032            1,000,000            1,046,180
Tallahassee, FL, Health Facilities Rev. (Tallahassee Memorial
Healthcare), 6.25%, 2020                                            1,000,000            1,057,220
Tom Green County, TX, Health Facilities Rev. (Shannon Health
System), 6.75%, 2021                                                  400,000              428,616
Upper Illinois River Valley Development, Health Facilities Rev.
(Morris Hospital), 6.625%, 2031                                       500,000              542,565
Valley, AL, Special Care Facilities Financing (Lanier Memorial
Hospital), 5.5%, 2007                                                 500,000              500,500
Wapello County, IA, Hospital Authority Rev. (Ottumwa Regional
Health Center), 6.375%, 2031                                          750,000              788,325
Weirton, WV, Municipal Hospital Building, Commission Rev
(Weirton Hospital Medical Center), 6.375%, 2031                       500,000              502,415
West Plains, MO, Industrial Development Authority Rev. (Ozarks
Medical Center), 6.75%, 2024                                          195,000              199,838
West Shore, PA, Hospital Authority (Holy Spirit Hospital),
6.25%, 2032                                                         1,000,000            1,063,650
Wichita, KS, Hospital Authority Rev. (Via Christi Health
System), 6.25%, 2019                                                1,500,000            1,659,345
Wisconsin Health & Educational Facilities Authority Rev
(Agnesian Healthcare, Inc.), 6%, 2017                                 325,000              345,010
Wisconsin Health & Educational Facilities Authority Rev
(Aurora Health Care, Inc.), 6.875%, 2030                              750,000              854,835
Wisconsin Health & Educational Facilities Authority Rev
(Wheaton Franciscan Services), 6.25%, 2022                          1,000,000            1,087,220
Yonkers, NY, Industrial Development Agency, Civic Facilities
Rev. (St. John's Riverside Hospital), 6.8%, 2016                      410,000              427,954
                                                                                      ------------
                                                                                      $ 60,247,067
- --------------------------------------------------------------------------------------------------
Healthcare Revenue - Long Term Care - 1.8%
- --------------------------------------------------------------------------------------------------
Bell County, TX, Health Facilities Development Rev. (Advanced
Living Technology), 7.75%, 2006                                  $     30,000         $     29,933
Bell County, TX, Health Facilities Development Rev. (Advanced
Living Technology), 8.125%, 2016                                      505,000              481,861
Bell County, TX, Health Facilities Development Rev. (Advanced
Living Technology), 8.5%, 2026                                      1,130,000            1,060,042
Colorado Health Facilities Authority Rev. (Evangelical
Lutheran), 6.9%, 2025                                                 500,000              563,390
Cumberland County, PA, Municipal Authority Rev. (Wesley), "A",
7.25%, 2013 (c)                                                       270,000              323,430
Cumberland County, PA, Municipal Authority Rev. (Wesley), "A",
7.25%, 2035                                                           105,000              112,135
Eden Prairie, MN, Multi-Family Housing Rev. (Coll-Rolling
Hills), "A", GNMA, 6%, 2021                                           200,000              214,894
Indiana Health Facilities Financing Authority Rev. (Hoosier
Care), 7.125%, 2034                                                   805,000              763,180
Iowa Finance Authority, Health Care Facilities Rev. (Care
Initiatives Project), 9.25%, 2025                                     485,000              575,278
Millbrae, CA, Residential Facilities Rev. (Magnolia of
Millbrae), "A", 7.375%, 2027                                          940,000              979,800
Shelby County, TN, Health Educational Rev. (Germantown
Village), 7.25%, 2034                                                 385,000              408,096
                                                                                      ------------
                                                                                      $  5,512,039
- --------------------------------------------------------------------------------------------------
Human Services - 0.4%
- --------------------------------------------------------------------------------------------------
Nassau County, NY, Industrial Development Civic (Special Needs
Facilities), 6.1%, 2012                                          $    295,000         $    302,691
Orange County, FL, Health Facilities Authority Rev. (GF/Orlando
Healthcare Facilities), 9%, 2031                                    1,000,000            1,103,990
                                                                                      ------------
                                                                                      $  1,406,681
- --------------------------------------------------------------------------------------------------
Industrial Revenue - Airlines - 0.8%
- --------------------------------------------------------------------------------------------------
Los Angeles, CA, Regional Airport Lease Rev. (AMR Corp.),
7%, 2012                                                         $    300,000         $    309,189
New York City, NY, Industrial Development Agency Rev. (American
Airlines, Inc.), 7.625%, 2025                                         970,000            1,065,914
Tulsa, OK, Municipal Airport Trust Rev. (American Airlines,
Inc.), "B", 5.65%, 2035                                             1,000,000              990,230
                                                                                      ------------
                                                                                      $  2,365,333
- --------------------------------------------------------------------------------------------------
Industrial Revenue - Chemicals - 0.3%
- --------------------------------------------------------------------------------------------------
Brazos River, TX, Harbor Navigation District (Dow Chemical
Co.), 5.7%, 2033                                                 $  1,000,000         $  1,063,440
- --------------------------------------------------------------------------------------------------
Industrial Revenue  - Environmental Services - 1.5%
- --------------------------------------------------------------------------------------------------
California Pollution Control Financing Authority, Solid Waste
Disposal Rev. (Waste Management, Inc.), "A-2", 5.4%, 2025        $    215,000         $    223,755
Carbon County, UT, Solid Waste Disposal Rev. (Laidlaw
Environmental), 7.45%, 2017                                         2,500,000            2,627,500
Charles City County, VA, Industrial Development Authority,
Solid Waste Disposal Facility Rev. (Waste Management, Inc.),
6.25%, 2027                                                           500,000              547,960
Colorado Housing & Finance Authority, Solid Waste Rev. (Waste
Management, Inc.), 5.7%, 2018                                         230,000              246,986
Gloucester County, NJ, Solid Waste Resource Recovery Rev
(Waste Management, Inc.), 6.85%, 2029                                 150,000              163,808
Massachusetts Development Finance Agency Rev., Resource
Recovery Rev. (Waste Management, Inc.), 6.9%, 2029                    300,000              326,739
Nevada Department of Business Rev. (Republic Services, Inc.),
5.625%, 2026                                                          450,000              484,205
                                                                                      ------------
                                                                                      $  4,620,953
- --------------------------------------------------------------------------------------------------
Industrial Revenue - Metals - 0.0%
- --------------------------------------------------------------------------------------------------
Burns Harbor, IN, Solid Waste Disposal Facilities Rev.
(Bethlehem Steel), 8%, 2024 (d)                                  $  3,000,000         $        300
- --------------------------------------------------------------------------------------------------
Industrial Revenue  - Other - 2.6%
- --------------------------------------------------------------------------------------------------
Bucks County, PA, Industrial Development Authority Rev. (USX
Corp.), 5.4%, 2017                                               $    500,000         $    530,085
Gulf Coast, TX, Industrial Development Authority (Valero Energy
Corp.), 5.6%, 2031                                                    500,000              513,625
Hardeman County, TN, Correctional Facilities Corp. (Corrections
Corp. of America), 7.375%, 2017                                       500,000              512,070
Massachusetts Development Finance Agency, Resource Recovery
Rev. (Flour Corp.), 5.625%, 2019                                    2,895,000            3,020,180
Massachusetts Industrial Finance Agency Rev. (Welch Foods,
Inc.), 5.6%, 2017                                                   1,300,000            1,349,179
Park Creek Metropolitan District, CO, Rev., Custodial Receipts,
CR-2, 7.875%, 2032 (a)                                                400,000              442,068
Pennsylvania Economic Development Financing Authority Rev
(Amtrak), 6.125%, 2021                                                550,000              582,434
Tooele County, UT, Hazardous Waste Treatment Rev. (Union
Pacific Corp.), 5.7%, 2026                                            980,000            1,026,530
                                                                                      ------------
                                                                                      $  7,976,171
- --------------------------------------------------------------------------------------------------
Industrial Revenue - Paper - 2.3%
- --------------------------------------------------------------------------------------------------
Butler, AL, Industrial Development Board, Solid Waste Disposal
Rev. (Georgia Pacific Corp.), 5.75%, 2028                        $    260,000         $    255,154
Delta County, MI, Economic Development Corp., Environmental
Improvements Rev. (MeadWestvaco Escanaba), "A",
6.25%, 2012 (c)                                                       900,000            1,017,261
Mobile, AL, Industrial Development Board Improvement Rev.,
(International Paper Co.), "B", 6.45%, 2019                         2,000,000            2,120,160
Navajo County, AZ, Industrial Development Authority Rev. (Stone
Container Corp.), 7.2%, 2027                                          500,000              518,160
Navajo County, AZ, Industrial Development Authority Rev. (Stone
Container Corp.), 7.4%, 2026                                        1,500,000            1,542,900
Onondaga County, NY, Industrial Development Authority Rev.,
Solid Waste Disposal Rev. (Solvay Paperboard LLC), 6.8%, 2014       1,000,000            1,046,650
West Point, VA, Industrial Development Authority, Solid Waste
Disposal Rev. (Chesapeake Corp.), "A", 6.375%, 2019                   550,000              550,451
                                                                                      ------------
                                                                                      $  7,050,736
- --------------------------------------------------------------------------------------------------
Miscellaneous Revenue - Other - 0.8%
- --------------------------------------------------------------------------------------------------
Austin, TX, Convention Center (Convention Enterprises, Inc.),
"A", 6.6%, 2021                                                  $    300,000         $    318,186
Austin, TX, Convention Center (Convention Enterprises, Inc.),
"A", 6.7%, 2028                                                       400,000              424,700
Baltimore, MD, Convention Center Hotel Revenue, "A", XLCA,
5.25%, 2039                                                           555,000              591,636
Gallery Certificate Trust, PA, Parking Rev., FSA,
4.5%, 2013 (z)                                                        640,000              631,795
San Antonio, TX, Convention Center, Hotel Financial Corp.,
Contract Rev. (Empowerment Zone), "A", AMBAC, 5%, 2034                490,000              498,335
Toledo Lucas County, OH, Port Authority Development Rev
(Northwest Ohio Bond Fund), "C", 5.125%, 2025                          65,000               65,070
                                                                                      ------------
                                                                                      $  2,529,722
- --------------------------------------------------------------------------------------------------
Multi-Family Housing Revenue - 3.0%
- --------------------------------------------------------------------------------------------------
Bay County, FL, Housing Finance Authority, Multi-Family Rev
(Andrews Place II Apartments), FSA, 5%, 2035                     $    150,000         $    150,743
Bay County, FL, Housing Finance Authority, Multi-Family Rev
(Andrews Place II Apartments), FSA, 5.1%, 2046                        275,000              276,356
California Statewide Communities Development Authority Rev
(Irvine Apartments), 5.25%, 2025                                    1,000,000            1,030,510
Charter Mac Equity Issuer Trust, 6.625%, 2009                       2,000,000            2,128,960
Eaglebend, CO, Affordable Housing Corp., 6.2%, 2012                 1,000,000              992,790
GMAC Municipal Mortgage Trust, "B-1", 5.6%, 2039 (a)                1,000,000            1,028,730
GMAC Municipal Mortgage Trust, "C-1", 5.7%, 2040 (a)                  500,000              498,250
Indianapolis, IN, Multi-Family Rev. (Cambridge Station
Apartments II), FNMA, 5.25%, 2039                                     320,000              324,112
Munimae TE Bond Subsidiary LLC, "A-2", 4.9%, 2049 (a)               2,000,000            1,984,920
Newark, NJ, Housing Authority Port Authority (Newark Marine
Terminal), MBIA, 5.5%, 2028                                           215,000              233,290
North Charleston, SC, Housing Authority Rev. (Horizon Village),
"A", FGIC, 5.15%, 2048                                                305,000              297,814
Seattle, WA, Housing Authority Rev., Capped Fund Program (High
Rise Rehab), "I", FSA, 5%, 2025                                       455,000              453,858
                                                                                      ------------
                                                                                      $  9,400,333
- --------------------------------------------------------------------------------------------------
Parking - 0.1%
- --------------------------------------------------------------------------------------------------
Rail Connections, Inc., MA Rev., 0%, 2009 (c)                    $    100,000         $     57,884
Rail Connections, Inc., MA Rev., 0%, 2009 (c)                         210,000              113,663
Rail Connections, Inc., MA Rev., 0%, 2009 (c)                         300,000              152,076
                                                                                      ------------
                                                                                      $    323,623
- --------------------------------------------------------------------------------------------------
Sales & Excise Tax Revenue - 0.4%
- --------------------------------------------------------------------------------------------------
Austin, TX, Town Community Events Center Venue, FGIC,
6%, 2009 (c)                                                     $  1,015,000         $  1,094,972
Metropolitan Pier & Expo, IL, McCormick Place Expansion, MBIA,
5.25%, 2042                                                           220,000              231,411
                                                                                      ------------
                                                                                      $  1,326,383
- --------------------------------------------------------------------------------------------------
Single Family Housing  - Local - 3.2%
- --------------------------------------------------------------------------------------------------
Adams County, CO, Single Family Mortgage Rev., ETM,
8.875%, 2011 (c)                                                 $  2,510,000         $  3,088,430
Brevard County, FL, Housing Finance Authority, "B", GNMA,
6.5%, 2022                                                            161,000              162,254
Calcasieu Parish, LA, Public Trust Authority, Single Family
Mortgage Rev. "A", GNMA, 6.05%, 2032                                  465,000              491,775
California Rural Home Mortgage Finance Authority Rev., GNMA,
6.55%, 2030                                                           110,000              111,610
Chicago, IL, Single Family Mortgage Rev., "C", GNMA,
7.05%, 2030                                                            10,000                9,991
Cook County, IL, Single Family Mortgage Rev., "A", 0%, 2015           415,000               94,454
Jefferson Parish, LA, Single Family Mortgage Rev., GNMA,
6.625%, 2023                                                          340,000              350,057
Jefferson Parish, LA, Single Family Mortgage Rev., GNMA,
6.75%, 2030                                                           435,000              451,778
Lee County, FL, Housing Finance Authority Rev., "A", GNMA,
7%, 2031                                                               20,000               20,215
Maricopa County, AZ, Single Family Mortgage Rev., "B", GNMA,
6.2%, 2034                                                            100,000              102,014
Pima County, AZ, Industrial Development Authority Rev., "B-1",
GNMA, 7.05%, 2030                                                     225,000              229,293
Sedgwick & Shawnee Counties, KS, Single Family Housing Rev.,
"A", GNMA, 6.45%, 2029                                                560,000              575,372
Sedgwick & Shawnee Counties, KS, Single Family Housing Rev.,
"A", GNMA, 5.8%, 2036                                                 615,000              666,488
Sedgwick & Shawnee Counties, KS, Single Family Housing Rev.,
"A-1", GNMA, 6.875%, 2026                                              90,000               90,436
Sedgwick & Shawnee Counties, KS, Single Family Housing Rev.,
"A-1", GNMA, 5.75%, 2037                                              190,000              202,392
Sedgwick & Shawnee Counties, KS, Single Family Housing Rev.,
"A-3", GNMA, 6%, 2035                                                 395,000              426,580
Sedgwick & Shawnee Counties, KS, Single Family Housing Rev.,
"A-4", GNMA, 5.85%, 2037                                              365,000              392,284
Sedgwick & Shawnee Counties, KS, Single Family Housing Rev.,
"A-5", GNMA, 5.8%, 2027                                               315,000              334,231
Sedgwick & Shawnee Counties, KS, Single Family Housing Rev.,
"A-5", GNMA, 5.7%, 2036                                               645,000              691,982
Sedgwick & Shawnee Counties, KS, Single Family Housing Rev.,
"A-5", GNMA, 5.9%, 2037                                               145,000              157,221
Sedgwick & Shawnee Counties, KS, Single Family Housing Rev.,
"A-6", GNMA, 5.65%, 2036                                              465,000              494,993
Sedgwick & Shawnee Counties, KS, Single Family Housing Rev.,
"B", GNMA, 5.45%, 2027                                                345,000              363,551
Sedgwick & Shawnee Counties, KS, Single Family Housing Rev.,
"B-2", GNMA, 6.45%, 2033                                              325,000              336,638
                                                                                      ------------
                                                                                      $  9,844,039
- --------------------------------------------------------------------------------------------------
Single Family Housing  - State - 2.6%
- --------------------------------------------------------------------------------------------------
California Housing Finance Agency Rev., Home Mortgage, MBIA,
0%, 2028                                                         $  1,735,000         $    552,684
Colorado Housing & Finance Authority Rev., 7.45%, 2016                 35,000               35,554
Colorado Housing & Finance Authority Rev., 6.875%, 2028                60,000               60,509
Colorado Housing & Finance Authority Rev., 6.8%, 2030                  80,000               82,166
Colorado Housing & Finance Authority Rev., "A-1", 7.4%, 2027           15,000               15,058
Colorado Housing & Finance Authority Rev., "A-2", 7.15%, 2014           7,000                7,012
Colorado Housing & Finance Authority Rev., "A-2", AMBAC,
6.6%, 2028                                                            300,000              309,618
Colorado Housing & Finance Authority Rev., "B-2", 6.1%, 2023          115,000              119,103
Colorado Housing & Finance Authority Rev., "B-3", 6.55%, 2033         105,000              107,626
Colorado Housing & Finance Authority Rev., "C", FHA,
6.75%, 2021                                                            40,000               40,482
Colorado Housing & Finance Authority Rev., "C-2", FHA,
5.9%, 2023                                                            170,000              177,176
Colorado Housing & Finance Authority Rev., "C-2", FHA,
6.6%, 2032                                                            165,000              170,488
Colorado Housing & Finance Authority Rev., "C-3", FHA,
6.375%, 2033                                                           90,000               92,280
Louisiana Housing Finance Agency, Single Family Mortgage Rev.,
"B-2", GNMA, 7.55%, 2031                                              125,000              130,013
Louisiana Housing Finance Agency, Single Family Mortgage Rev.,
GNMA, 6.4%, 2032                                                      130,000              132,123
Minnesota Housing Finance Agency Rev., Residential Housing
Finance, "B", 4.8%, 2023                                              195,000              196,166
Missouri State Housing Development Commission, Single Family
Mortgage Rev. (Home Loan Program), "B", GNMA, 6.7%, 2030              190,000              196,737
Missouri State Housing Development Commission, Single Family
Mortgage Rev. (Home Loan Program), GNMA, 6.35%, 2032                  195,000              200,485
Missouri State Housing Development Commission, Single Family
Mortgage Rev. (Home Loan Program), GNMA, 6.85%, 2032                  175,000              181,249
Missouri State Housing Development Commission, Single Family
Mortgage Rev. (Home Loan Program), GNMA, 6.75%, 2034                  105,000              106,579
New Hampshire Housing Finance Authority Rev., "B", 5.875%, 2030       105,000              105,920
New Hampshire Housing Finance Authority Rev., "B", 6.3%, 2031          90,000               91,110
New Hampshire Housing Finance Authority Rev., "B", 6.5%, 2035         705,000              766,081
New Mexico Mortgage Finance Authority Rev., "B-2", GNMA,
6.35%, 2033                                                           175,000              182,499
New Mexico Mortgage Finance Authority Rev., GNMA, 7.1%, 2030           70,000               70,986
New Mexico Mortgage Finance Authority Rev., GNMA, 6.25%, 2032         380,000              395,173
New Mexico Mortgage Finance Authority Rev., "N", GNMA,
5.95%, 2037                                                           440,000              476,340
North Dakota Housing Finance Agency Rev., Housing Finance, "A",
5%, 2033                                                              385,000              386,690
Ohio Housing Finance Agency Mortgage Rev., Residential Mortgage
Backed, "C", GNMA, 5.9%, 2035                                         425,000              444,682
Oklahoma Housing Finance Agency Rev., 6.65%, 2029                     515,000              545,071
Texas Affordable Housing Corp., Single Family Mortgage Rev.,
"B", 5.25%, 2039                                                      520,000              537,592
Texas Housing & Community Affairs, Residential Mortgage Rev ,
GNMA, 7.1%, 2021                                                      755,000              792,629
Vermont Housing Finance Agency Rev., FSA, 4.95%, 2032                 275,000              278,240
                                                                                      ------------
                                                                                      $  7,986,121
- --------------------------------------------------------------------------------------------------
Solid Waste Revenue - 1.0%
- --------------------------------------------------------------------------------------------------
Delaware County, PA, Industrial Development Authority, Resource
Recovery Facilities Rev. (American Ref-Fuel Co.), "A",
6.2%, 2019                                                       $    500,000         $    522,590
Hudson County, NJ, Solid Waste System Rev., 5.9%, 2015                830,000              828,788
Massachusetts Development Finance Agency Rev. (Ogden Haverhill
Associates), 6.7%, 2014                                               700,000              764,715
Massachusetts Industrial Finance Agency, Resource Recovery Rev.
(Ogden Haverhill Associates), 5.6%, 2019                            1,000,000            1,033,830
                                                                                      ------------
                                                                                      $  3,149,923
- --------------------------------------------------------------------------------------------------
State & Agency - Other - 0.8%
- --------------------------------------------------------------------------------------------------
Massachusetts State Development Finance Agency (Visual &
Performing Arts), 6%, 2021                                       $  1,000,000         $  1,176,900
State of Michigan, COP, AMBAC, 5.5%, 2010 (c)                       1,250,000            1,334,875
                                                                                      ------------
                                                                                      $  2,511,775
- --------------------------------------------------------------------------------------------------
State & Local Agencies - 5.1%
- --------------------------------------------------------------------------------------------------
Alabama Building Renovation Authority, AMBAC, 6%, 2018           $    760,000         $    826,538
Alabama State Public School & College, Capital Improvement,
"D", 6%, 2015                                                       2,850,000            3,086,151
Chicago, IL, Public Building Commission Rev., RITES, FGIC,
8.981%, 2016 (z)(v)                                                 1,500,000            1,784,400
Chicago, IL, Public Building Commission Rev., RITES, FGIC,
8.981%, 2017 (z)(v)                                                 1,250,000            1,497,100
Golden State, CA, Tobacco Securitization Corp., Tobacco
Settlement Rev., Enhanced, "A", 5%, 2045                              325,000              330,067
Golden State, CA, Tobacco Securitization Corp., Tobacco
Settlement Rev., Enhanced, "B", 5.375%, 2010 (c)                    1,500,000            1,597,665
Golden State, CA, Tobacco Securitization Corp., Tobacco
Settlement Rev., Enhanced, "B", 5.5%, 2013 (c)                      1,075,000            1,177,921
Indianapolis, IN, Public Improvement Bond Bank, "C", AMBAC,
6%, 2017                                                              500,000              542,315
New Jersey Economic Development Authority Rev., School
Facilities Construction, "O", 5.25%, 2025                             445,000              469,248
New Mexico Finance Authority Rev., Court Facilities Fee Rev ,
MBIA, 5.5%, 2011 (c)                                                  475,000              514,577
New York State Urban Development Corp., Correctional Facilities
Service Contract C, AMBAC, 5.875%, 2009 (c)                         1,000,000            1,068,380
Stafford, TX, Economic Development Corp., FGIC, 6%, 2015              525,000              599,975
Virginia College Building Authority, VA, Public Higher
Education Financing, "A", 5.75%, 2009 (c)                           2,295,000            2,447,939
                                                                                      ------------
                                                                                      $ 15,942,276
- --------------------------------------------------------------------------------------------------
Student Loan Revenue - 0.9%
- --------------------------------------------------------------------------------------------------
Access to Loans for Learning, California Student Loan Rev.,
7.95%, 2030                                                      $    650,000         $    683,690
Arizona Student Loan Acquisition Authority Rev., 5.8%, 2016           675,000              714,690
Arizona Student Loan Acquisition Authority Rev., 5.85%, 2017          700,000              741,349
Massachusetts Educational Financing Authority, Refunding Issue
G, "A", MBIA, 6.1%, 2018                                              590,000              602,077
                                                                                      ------------
                                                                                      $  2,741,806
- --------------------------------------------------------------------------------------------------
Tax - Other - 1.1%
- --------------------------------------------------------------------------------------------------
New Jersey Economic Development Authority Rev., Cigarette Tax,
5.5%, 2024                                                       $    250,000         $    260,855
New Jersey Economic Development Authority Rev., Cigarette Tax,
5.75%, 2029                                                           450,000              476,208
New Jersey Economic Development Authority Rev., Cigarette Tax,
5.5%, 2031                                                            200,000              207,616
New Jersey Economic Development Authority Rev., Cigarette Tax,
5.75%, 2034                                                           300,000              315,399
New York City, NY, Transitional Finance Authority Rev., Future
Tax Secured, "A", 6%, 2009 (c)                                      2,000,000            2,168,320
                                                                                      ------------
                                                                                      $  3,428,398
- --------------------------------------------------------------------------------------------------
Tax Assessment - 2.1%
- --------------------------------------------------------------------------------------------------
Allegheny County, PA, Redevelopment Authority Rev. (Pittsburgh
Mills), 5.1%, 2014                                               $     75,000         $     76,992
Allegheny County, PA, Redevelopment Authority Rev. (Pittsburgh
Mills), 5.6%, 2023                                                     50,000               52,293
Broadview, IL, Tax Increment Rev., 5.25%, 2012                      1,000,000            1,026,850
Capital Region Community Development District, FL, Capital
Improvement Rev., "B", 5.95%, 2006                                     40,000               40,060
Fishhawk Community Development District, FL, 5.125%, 2009             380,000              378,982
Greyhawk Landing Community Development, FL, Special Assessment
Rev., "B", 6.25%, 2009                                                140,000              141,508
Katy, TX, Development Authority Rev., 5.8%, 2011                      865,000              891,521
Katy, TX, Development Authority Rev., "B", 6%, 2018                 1,200,000            1,238,064
Killarney, FL, Community Development District, "B",
5.125%, 2009                                                          205,000              204,422
Lakes by the Bay South Community Development District, FL,
Special Assessment, "B", 5.3%, 2009                                   255,000              254,561
Lancaster County, SC, Assessment Rev. (Sun City Carolina
Lakes), 5.45%, 2037                                                    50,000               50,106
Panther Trace, FL, Community Development District Rev., "B",
6.5%, 2009                                                              5,000                5,023
Panther Trace, FL, Community Development District Rev., "B",
5%, 2010                                                              655,000              651,273
Parkway Center, FL, Community Development District Rev., "B",
5.625%, 2014                                                          935,000              945,566
Preserve at Wilderness Lake, FL, Community Development
District, Capital Improvement, "B", 5%, 2009                          150,000              148,358
Renaissance Community Development, FL, "B", 6.25%, 2008               120,000              120,824
Tuscany Reserve Community Development District, FL, "B",
5.25%, 2016                                                           185,000              185,335
                                                                                      ------------
                                                                                      $  6,411,738
- --------------------------------------------------------------------------------------------------
Tobacco - 1.6%
- --------------------------------------------------------------------------------------------------
Badger, WI, Tobacco Asset Securitization Corp., 6.125%, 2027     $  1,055,000         $  1,115,251
Children's Trust Fund, Tobacco Settlement Rev., Puerto Rico,
"A", 0%, 2050                                                       4,000,000              261,600
Children's Trust Fund, Tobacco Settlement Rev., Puerto Rico,
"B", 0%, 2055                                                       2,000,000               69,300
District of Columbia, Tobacco Settlement, 6.25%, 2024                 405,000              430,013
Guam Economic Development Authority, 5%, 2022                         115,000              116,133
Iowa Tobacco Settlement Authority, Tobacco Settlement Rev.,
Asset Backed, "B", 5.3%, 2011 (c)                                     750,000              799,140
Iowa Tobacco Settlement Authority, Tobacco Settlement Rev.,
Asset Backed, "B", 0% to 2007, 5.6% to 2034                           615,000              571,353
Louisiana Tobacco Settlement Authority, 5.5%, 2030                    415,000              431,471
New Jersey Tobacco Settlement Authority, 5.75%, 2032                  675,000              701,008
South Carolina Tobacco Settlement Authority, 6.375%, 2028             500,000              537,645
Washington Tobacco Settlement Authority, 6.5%, 2026                    70,000               76,334
                                                                                      ------------
                                                                                      $  5,109,248
- --------------------------------------------------------------------------------------------------
Toll Roads - 0.5%
- --------------------------------------------------------------------------------------------------
New Jersey State Turnpike Authority Rev., Unrefunded, "C",
MBIA, 6.5%, 2016                                                 $    235,000         $    271,141
New Jersey State Turnpike Authority Rev. "C", MBIA, ETM,
6.5%, 2016 (c)                                                         80,000               92,598
Northwest Parkway Public Highway Authority Co. Rev., Capital
Appreciation, "B", AMBAC, 0%, 2018                                    750,000              405,150
San Joaquin Hills, CA, Transportation Corridor Agency, Toll
Road Rev., ETM, 0%, 2009 (c)                                        1,000,000              900,340
                                                                                      ------------
                                                                                      $  1,669,229
- --------------------------------------------------------------------------------------------------
Transportation - Special Tax - 1.1%
- --------------------------------------------------------------------------------------------------
Allegheny County, PA, Port Authority Special Rev., MBIA,
6.25%, 2009 (c)                                                  $  1,000,000         $  1,080,600
New Jersey Economic Development Authority Rev., Transportation
Project Sublease, "A", FSA, 6%, 2009 (c)                              325,000              346,704
Pennsylvania State Turnpike Commission Oil, "A", AMBAC,
5.25%, 2018                                                           850,000              891,140
Pennsylvania State Turnpike Commission Oil, "A", AMBAC, ETM,
5.25%, 2018 (c)                                                     1,150,000            1,193,804
                                                                                      ------------
                                                                                      $  3,512,248
- --------------------------------------------------------------------------------------------------
Universities - Colleges - 4.1%
- --------------------------------------------------------------------------------------------------
Alabama Private Colleges & Universities, Facilities Authority
Rev. (Tuskegee University), ASSD GTY, 4.75%, 2026                $  1,000,000         $  1,004,670
Amherst, NY, Industrial Development Agency Rev. (Daemen
College), "A", 6%, 2021                                             1,000,000            1,065,030
California Educational Facilities Authority Rev. (L.A. College
of Chiropractic), 5.6%, 2017                                          250,000              241,610
Houston, TX, Community College Systems, MBIA, 7.875%, 2025          1,650,000            1,989,554
Illinois Finance Authority Rev. (University of Chicago), "A",
5%, 2034                                                              215,000              221,869
Massachusetts Development Finance Agency Rev. (Boston
University), XLCA, 6%, 2059                                         1,250,000            1,484,850
Massachusetts Development Finance Agency Rev. (Massachusetts
College of Pharmacy), 6.625%, 2010 (c)                                100,000              111,102
Massachusetts Development Finance Agency Rev., (Olin College),
"B", XLCA, 5.25%, 2033                                              2,000,000            2,105,540
Northern Illinois University Rev., Auxiliary Facilities
Systems, AMBAC, 5.875%, 2018                                        1,370,000            1,452,378
Savannah, GA, Economic Development Authority Rev. (College of
Art & Design, Inc.), 6.5%, 2009 (c)                                   500,000              548,175
St. Joseph County, IN, Educational Facilities Rev. (University
of Notre Dame), 6.5%, 2026                                          1,000,000            1,279,650
State of Oregon, Facilities Authority Rev. (Linfield College),
"A", 5%, 2030                                                         165,000              167,114
Upland, IN, Economic Development Rev. (Taylor University),
6%, 2018                                                              435,000              478,509
Upland, IN, Economic Development Rev. (Taylor University),
6.25%, 2023                                                           520,000              571,834
                                                                                      ------------
                                                                                      $ 12,721,885
- --------------------------------------------------------------------------------------------------
Universities - Secondary Schools - 1.8%
- --------------------------------------------------------------------------------------------------
California Statewide Communities, Development Authority Rev
(Escondido Charter High School), 7.5%, 2036                      $    500,000         $    529,840
Clark County, NV, Economic Development Rev. (Alexander Dawson
School), 5.5%, 2020                                                 1,500,000            1,564,965
Maine Finance Authority, Educational Rev. (Waynflete School),
6.4%, 2019                                                          1,000,000            1,064,340
Maine Finance Authority, Educational Rev. (Waynflete School),
6.5%, 2029                                                          1,000,000            1,068,670
Michigan Municipal Bond Authority Rev. (YMCA Service Learning
Academy), 7.625%, 2021                                                400,000              425,396
New Hampshire Health & Education (Derryfield School),
6.5%, 2010                                                            290,000              294,808
Pima County, AZ, Industrial Development Authority Education
Rev. (Arizona Charter Schools), "C", 6.75%, 2031                      500,000              520,345
                                                                                      ------------
                                                                                      $  5,468,364
- --------------------------------------------------------------------------------------------------
Utilities - Cogeneration - 0.6%
- --------------------------------------------------------------------------------------------------
Carbon County, PA, Industrial Development Authority Rev
(Panther Creek Partners), 6.65%, 2010                            $    550,000         $    580,454
Klamath Falls, OR, Electric Rev. (Klamath Cogeneration),
6%, 2025                                                            1,475,000            1,183,496
                                                                                      ------------
                                                                                      $  1,763,950
- --------------------------------------------------------------------------------------------------
Utilities - Investor Owned - 5.0%
- --------------------------------------------------------------------------------------------------
Apache County, AZ, Industrial Development Authority, Pollution
Control Rev. (Tucson Electric Power Co.), 5.875%, 2033           $  1,000,000         $  1,002,410
Brazos River Authority, TX, Pollution Control Rev. (Texas
Utility Co.), "B", 6.3%, 2032                                         120,000              131,207
California Pollution Control Financing Authority, Pollution
Control Rev. (Pacific Gas & Electric Co.), MBIA, 5.35%, 2016        1,600,000            1,704,304
Clark County, NV, Industrial Development Rev. (Southwest Gas
Corp.), "A", AMBAC, 4.85%, 2035                                       730,000              724,335
Connecticut Development Authority, Pollution Control Rev
(Connecticut Light & Power Co.), 5.85%, 2028                        1,000,000            1,058,350
Farmington, NM, Pollution Control Rev. (New Mexico Public
Service), 5.8%, 2022                                                  500,000              507,580
Farmington, NM, Pollution Control Rev. (New Mexico Public
Service), 6.375%, 2022                                              1,000,000            1,049,240
Farmington, NM, Pollution Control Rev. (New Mexico Public
Service), "A", 6.3%, 2016                                             565,000              587,199
Lehigh County, PA, Industrial Development Authority Pollution
Control Rev. (PPL Electric Utility Corp.), "A", FGIC,
4.7%, 2029                                                            320,000              318,189
Matagorda County, TX, Pollution Control Rev. (Reliant Energy),
5.95%, 2030                                                           750,000              767,055
Mecklenburg County, VA, Industrial Development Authority Rev.
(UAE Mecklenburg LP), 6.5%, 2017                                      700,000              766,003
New Hampshire Industrial Development Authority, Pollution
Control Rev. (Connecticut Light & Power), 5.9%, 2016                  500,000              510,590
Pima County, AZ, Industrial Development Authority Rev. (Tucson
Electric Power Co.), "A", 6.1%, 2025                                2,000,000            2,005,700
Pittsylvania County, VA, Industrial Development Authority Rev.,
7.5%, 2014                                                          2,000,000            2,036,000
Port Morrow, OR, Pollution Control Rev. (Portland General
Electric), 5.2%, 2033                                                 350,000              361,508
Sabine River Authority, TX, Pollution Control Rev. (TXU
Electric Co.), "A", 5.5%, 2022                                        500,000              529,965
West Feliciana Parish, LA, Pollution Control Rev. (Entergy Gulf
States), 6.6%, 2028                                                 1,665,000            1,680,218
                                                                                      ------------
                                                                                      $ 15,739,853
- --------------------------------------------------------------------------------------------------
Utilities - Municipal Owned - 6.3%
- --------------------------------------------------------------------------------------------------
Austin, TX, Utility Systems Rev., AMBAC, 6.75%, 2011             $  1,500,000         $  1,715,130
California State, Department of Water Resources Power Supply
Rev., "A", 5.125%, 2012 (c)                                           750,000              813,203
Georgia Municipal Electric Power Authority Rev., MBIA,
6.375%, 2016                                                        2,000,000            2,337,640
Georgia Municipal Electric Power Authority Rev., MBIA,
6.5%, 2020                                                          7,350,000            8,799,347
North Carolina Municipal Power Agency, Catawba Electric Rev ,
6.375%, 2013                                                          750,000              815,520
North Carolina Municipal Power Agency, Catawba Electric Rev ,
MBIA, 7%, 2007                                                      3,250,000            3,331,055
North Carolina Municipal Power Agency, ROLS, MBIA,
7.236%, 2019 (z)(v)                                                 1,500,000            1,695,690
                                                                                      ------------
                                                                                      $ 19,507,585
- --------------------------------------------------------------------------------------------------
Water & Sewer Utility Revenue - 5.7%
- --------------------------------------------------------------------------------------------------
Atlanta, GA, Water & Wastewater Rev., RITES, FGIC,
7.019%, 2016 (z)(v)                                              $  1,000,000         $  1,186,100
Augusta, GA, Water & Sewer Rev., FSA, 5.25%, 2039                   1,090,000            1,155,825
Forsyth County, GA, Water & Sewage Authority, 6.25%, 2010 (c)       1,170,000            1,288,895
Massachusetts Water Resources Authority, 6.5%, 2019                 5,965,000            7,062,321
Mississippi Development Bank Special Obligations, Grenada, MS,
Water & Sewer Systems Project, "N", FSA, 5%, 2030                     490,000              508,218
Narragansett, RI, Bay Commission Wastewater Systems Rev., "A",
MBIA, 5%, 2028                                                        860,000              895,716
Pittsburgh, PA, Water & Sewer Authority Rev., "C", FSA,
5.25%, 2022                                                         2,000,000            2,054,240
Spartanburg, SC, Water & Sewer Authority Rev., "B", MBIA,
5.25%, 2030                                                           255,000              270,728
State of New York, Environmental Facilities, 5%, 2016                 430,000              445,347
State of New York, Environmental Facilities, ETM, 5%, 2016 (c)        570,000              587,904
Upland, CA, Public Financing Authority Rev., Water Systems
Improvement, AMBAC, 5%, 2033                                          590,000              605,558
West Virginia Water Development Authority Loan Program, "B",
AMBAC, 4.75%, 2035                                                    110,000              110,416
West Wilson Utility District, TN, Waterworks Rev., MBIA,
5.25%, 2030                                                           480,000              508,354
Westmoreland County, PA, Municipal Authority Services Rev.,
FSA, 5.25%, 2025                                                      400,000              429,328
Westmoreland County, PA, Municipal Authority Services Rev.,
FSA, 5.25%, 2026                                                      520,000              556,863
                                                                                      ------------
                                                                                      $ 17,665,813
- --------------------------------------------------------------------------------------------------
  TOTAL MUNICIPAL BONDS (IDENTIFIED COST, $287,523,337)                              $305,294,661
- --------------------------------------------------------------------------------------------------

Floating Rate Demand Notes  - 1.0%
- --------------------------------------------------------------------------------------------------
ISSUER                                                               SHARES/PAR         VALUE ($)
- --------------------------------------------------------------------------------------------------
Allegheny County, PA, Hospital Development Authority Rev
(Presbyterian University Hospital), "D", 3.22%, due 4/06/06      $    600,000         $    600,000
Burke County, GA, Development Authority Pollution Control Rev.
(Oglethorpe Power Corp.), "A", 3.22%, due 4/05/06                     200,000              200,000
Georgia Municipal Electric Authority, 3.05%, due 4/05/06              100,000              100,000
Jefferson County, AL, Sewer Rev., 3.22%, due 4/06/06                  300,000              300,000
Lincoln County, WY, Pollution Control Rev. (Exxon Mobile
Corp.), 3.19%, due 4/03/06                                          1,000,000            1,000,000
New York City, NY, Municipal Water & Sewer Finance Authority
Rev., 3.13%, due 4/03/06                                              200,000              200,000
Orange County, CA, 3.1%, due 4/03/06                                  100,000              100,000
Pinellas County, FL, Health Facilities Authority Rev. (Pooled
Hospital Loan Program), 3.18%, due 4/03/06                            500,000              500,000
Washington State Health Care Facilities, "A",
3.18%, due 4/03/06                                                    100,000              100,000
- --------------------------------------------------------------------------------------------------
  TOTAL FLOATING RATE DEMAND NOTES (IDENTIFIED COST,
  $3,100,000)                                                                           $3,100,000
- --------------------------------------------------------------------------------------------------
  TOTAL INVESTMENTS (IDENTIFIED COST, $290,623,337)                                   $308,394,661
- --------------------------------------------------------------------------------------------------

Other Assets, Less Liabilities - 1.0%                                                    3,187,554
- --------------------------------------------------------------------------------------------------
  NET ASSETS - 100.0%                                                                 $311,582,215
- --------------------------------------------------------------------------------------------------

INTEREST RATE SWAPS

                             NOTIONAL
                            PRINCIPAL                              CASH FLOWS           UNREALIZED
                            AMOUNT OF     CASH FLOWS PAID           RECEIVED           APPRECIATION
EXPIRATION      CURRENCY     CONTRACT       BY THE FUND           BY THE FUND         (DEPRECIATION)

12/01/2007        USD       $6,000,000     Fixed - 3 Year       Floating - 7 day          $82,399
                                           BMA Swap Index        BMA Swap Index
                                              (2.795%)

 8/30/2016        USD       15,000,000    Fixed - 10 Year       Floating - 7 Day          115,193
                                           BMA Swap Index        BMA Swap Index
                                              (3.926%)

 8/02/2021        USD        2,000,000    Fixed - 15 Year       Floating - 7 Day           31,963
                                           BMA Swap Index        BMA Swap Index
                                              (4.011%)
- -------------------------------------------------------------------------------------------------
                                                                                         $229,555

At March 31, 2006, the fund had sufficient cash and/or securities to cover any
commitments under these derivative contracts.

Portfolio of Investments - continued

(a) SEC Rule 144A restriction.
(d) Non-income producing security - in default.
(c) Refunded bond.
(v) Inverse floating rate security.
(z) Restricted securities (excluding 144A issues) are not registered under the Securities Act of
    1933 and are subject to legal or contractual restrictions on resale. These securities
    generally may be resold in transactions exempt from registration or to the public if the
    securities are registered. Disposal of these securities may involve time-consuming
    negotiations and prompt sale at an acceptable price may be difficult. The fund holds the
    following restricted securities:

                                            ACQUISITION    ACQUISITION        CURRENT     TOTAL % OF
SECURITY                                           DATE           COST   MARKET VALUE     NET ASSETS

Atlanta, GA, Water & Wastewater Rev.,
RITES, FGIC, 7.019%, 2016                     4/20/1999     $1,167,100     $1,186,100

Chicago, IL O'Hare International Airport
Rev., RITES, FSA, 7.461%, 2022                8/21/2003      1,599,510      1,760,940

Chicago, IL, Public Building Commission
Rev., RITES, FGIC, 8.981%, 2016               3/10/1999      1,619,550      1,784,400

Chicago, IL, Public Building Commission
Rev., RITES, FGIC, 8.981%, 2017               3/10/1999      1,337,550      1,497,100

Commonwealth of Puerto Rico, ROLS, FGIC,
7.763%, 2015                                  8/05/2002      3,878,760      3,674,340

Dudley-Charlton, MA, Regional School
District, RITES, FGIC, 6.542%, 2013           5/05/1999      1,615,946      1,792,565

Gallery Certificate Trust, PA, Parking
Rev., FSA, 4.5%, 2013                        12/17/2003        640,558        631,795

Houston, TX, Independent School District,
RITES, 6.519%, 2017                           2/26/1999      2,440,832      2,527,740

North Carolina Municipal Power Agency,
ROLS, MBIA, 7.236%, 2019                       3/3/2003      1,717,980      1,695,690

- ----------------------------------------------------------------------------------------------------
Total Restricted Securities                                               $16,550,670           5.3%

The following abbreviations are used in the Portfolio of Investments and are
defined:

BMA       Bond Market Assn.
COP       Certificate of Participation
ETM       Escrowed to Maturity

Insurers                                        Inverse Floaters

AMBAC     AMBAC Indemnity Corp.                 RIBS     Residual Interest Bonds
ASSD GTY  Assured Guarantee Insurance Co.       RITES    Residual Interest Tax-Exempt Security
CIFG      CDC IXIS Financial Guaranty           ROLS     Residual Options Longs
FGIC      Financial Guaranty Insurance Co.
FHA       Federal Housing Administration
FNMA      Federal National Mortgage Assn.
FSA       Financial Security Assurance, Inc.
GNMA      Government National Mortgage Assn.
MBIA      MBIA Insurance Corp.
PSF       Permanent School Fund
XLCA      XL Capital Insurance Co.

SEE NOTES TO FINANCIAL STATEMENTS




FINANCIAL STATEMENTS            Statement of Assets and Liabilities

This statement represents your fund's balance sheet, which details the assets
and liabilities composing the total value of the fund.

AT 3/31/06
                                                                                   
ASSETS
- ------------------------------------------------------------------------------------------------------
Investments, at value (identified cost, $290,623,337)               $308,394,661
Cash                                                                      77,197
Receivable for investments sold                                          559,006
Receivable for fund shares sold                                          172,314
Interest receivable                                                    4,517,174
Unrealized appreciation on interest rate swap agreements                 243,530
- ------------------------------------------------------------------------------------------------------
Total assets                                                                              $313,963,882
- ------------------------------------------------------------------------------------------------------
LIABILITIES
- ------------------------------------------------------------------------------------------------------
Distributions payable                                                   $513,639
Payable for investments purchased                                      1,280,005
Payable for fund shares reacquired                                       404,795
Unrealized depreciation on interest rate swap agreements                  13,975
Payable to affiliates
  Management fee                                                           2,510
  Shareholder servicing costs                                             21,285
  Distribution and service fees                                            3,600
  Administrative services fee                                                 97
Payable for independent trustees' compensation                            32,280
Accrued expenses and other liabilities                                   109,481
- ------------------------------------------------------------------------------------------------------
Total liabilities                                                                           $2,381,667
- ------------------------------------------------------------------------------------------------------
Net assets                                                                                $311,582,215
- ------------------------------------------------------------------------------------------------------
NET ASSETS CONSIST OF:
- ------------------------------------------------------------------------------------------------------
Paid-in capital                                                     $297,426,695
Unrealized appreciation (depreciation) on investments                 18,000,879
Accumulated net realized gain (loss) on investments                   (3,719,333)
Accumulated distributions in excess of net investment income            (126,026)
- ------------------------------------------------------------------------------------------------------
Net assets                                                                                $311,582,215
- ------------------------------------------------------------------------------------------------------
Shares of beneficial interest outstanding                                                   36,523,035
- ------------------------------------------------------------------------------------------------------





Statement of Assets and Liabilities - continued
                                                                                   
Class A shares
- ------------------------------------------------------------------------------------------------------
  Net assets                                                        $240,212,089
  Shares outstanding                                                  28,174,876
- ------------------------------------------------------------------------------------------------------
  Net asset value per share                                                                      $8.53
- ------------------------------------------------------------------------------------------------------
  Offering price per share (100/95.25Xnet asset value per
  share)                                                                                         $8.96
- ------------------------------------------------------------------------------------------------------
Class B shares
- ------------------------------------------------------------------------------------------------------
  Net assets                                                         $36,751,814
  Shares outstanding                                                   4,304,321
- ------------------------------------------------------------------------------------------------------
  Net asset value and offering price per share                                                   $8.54
- ------------------------------------------------------------------------------------------------------
Class C shares
- ------------------------------------------------------------------------------------------------------
  Net assets                                                         $34,618,312
  Shares outstanding                                                   4,043,838
- ------------------------------------------------------------------------------------------------------
  Net asset value and offering price per share                                                   $8.56
- ------------------------------------------------------------------------------------------------------

On sales of $100,000 or more, the offering price of Class A shares is reduced.
A contingent deferred sales charge may be imposed on redemptions of Class A,
Class B and Class C shares.

SEE NOTES TO FINANCIAL STATEMENTS




FINANCIAL STATEMENTS            Statement of Operations

This statement describes how much your fund earned in investment income and accrued in
expenses. It also describes any gains and/or losses generated by fund operations.

YEAR ENDED 3/31/06

                                                                                   
NET INVESTMENT INCOME
- ------------------------------------------------------------------------------------------------------
Interest income                                                                            $17,558,073
- ------------------------------------------------------------------------------------------------------
Expenses
  Management fee                                                       $1,748,513
  Distribution and service fees                                         1,354,018
  Shareholder servicing costs                                             438,989
  Administrative services fee                                              43,442
  Independent trustees' compensation                                       18,054
  Custodian fee                                                           117,265
  Shareholder communications                                               30,259
  Auditing fees                                                            47,537
  Legal fees                                                                8,691
  Miscellaneous                                                           110,393
- ------------------------------------------------------------------------------------------------------
Total expenses                                                                              $3,917,161
- ------------------------------------------------------------------------------------------------------
  Fees paid indirectly                                                    (22,580)
  Reduction of expenses by investment adviser                            (796,680)
- ------------------------------------------------------------------------------------------------------
Net expenses                                                                                $3,097,901
- ------------------------------------------------------------------------------------------------------
Net investment income                                                                      $14,460,172
- ------------------------------------------------------------------------------------------------------
REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS
- ------------------------------------------------------------------------------------------------------
Realized gain (loss) (identified cost basis)
  Investment transactions                                                $174,408
  Swap transactions                                                       454,917
- ------------------------------------------------------------------------------------------------------
Net realized gain (loss) on investments                                                       $629,325
- ------------------------------------------------------------------------------------------------------
Change in unrealized appreciation (depreciation)
  Investments                                                         $(2,475,902)
  Swap transactions                                                      (267,889)
- ------------------------------------------------------------------------------------------------------
Net unrealized gain (loss) on investments                                                  $(2,743,791)
- ------------------------------------------------------------------------------------------------------
Net realized and unrealized gain (loss) on investments                                     $(2,114,466)
- ------------------------------------------------------------------------------------------------------
Change in net assets from operations                                                       $12,345,706
- ------------------------------------------------------------------------------------------------------

SEE NOTES TO FINANCIAL STATEMENTS




FINANCIAL STATEMENTS            Statements of Changes in Net Assets

These statements describe the increases and/or decreases in net assets
resulting from operations, any distributions, and any shareholder
transactions.


YEARS ENDED 3/31                                                    2006                     2005
                                                                                   
CHANGE IN NET ASSETS
- ------------------------------------------------------------------------------------------------------
FROM OPERATIONS
- ------------------------------------------------------------------------------------------------------
Net investment income                                             $14,460,172              $15,635,213
Net realized gain (loss) on investments                               629,325                1,875,472
Net unrealized gain (loss) on investments                          (2,743,791)              (7,230,682)
- ------------------------------------------------------------------------------------------------------
Change in net assets from operations                              $12,345,706              $10,280,003
- ------------------------------------------------------------------------------------------------------
DISTRIBUTIONS DECLARED TO SHAREHOLDERS
- ------------------------------------------------------------------------------------------------------
From net investment income
  Class A                                                        $(11,422,176)            $(12,056,821)
  Class B                                                          (1,578,544)              (1,913,952)
  Class C                                                          (1,359,481)              (1,411,847)
- ------------------------------------------------------------------------------------------------------
Total distributions declared to shareholders                     $(14,360,201)            $(15,382,620)
- ------------------------------------------------------------------------------------------------------
Change in net assets from fund share transactions                 $(6,094,125)            $(30,106,846)
- ------------------------------------------------------------------------------------------------------
Redemption fees                                                           $--                     $691
- ------------------------------------------------------------------------------------------------------
Total change in net assets                                        $(8,108,620)            $(35,208,772)
- ------------------------------------------------------------------------------------------------------

NET ASSETS
- ------------------------------------------------------------------------------------------------------
At beginning of period                                            319,690,835              354,899,607

At end of period (including accumulated distributions
in excess of net investment income of $126,026 and
$216,146, respectively)                                          $311,582,215             $319,690,835
- ------------------------------------------------------------------------------------------------------

SEE NOTES TO FINANCIAL STATEMENTS




FINANCIAL STATEMENTS            Financial Highlights

The financial highlights table is intended to help you understand the fund's financial performance for the past 5 years.
Certain information reflects financial results for a single fund share. The total returns in the table represent the rate by
which an investor would have earned (or lost) on an investment in the fund share class (assuming reinvestment of all
distributions) held for the entire period. This information has been audited by the fund's independent registered public
accounting firm, whose report, together with the fund's financial statements, are included in this report.

CLASS A

                                                                             YEARS ENDED 3/31
                                              -------------------------------------------------------------------------------
                                                     2006             2005             2004             2003             2002
                                                                                                         
Net asset value, beginning of period                $8.58            $8.70            $8.54            $8.32            $8.54
- -----------------------------------------------------------------------------------------------------------------------------
INCOME (LOSS) FROM INVESTMENT OPERATIONS
- -----------------------------------------------------------------------------------------------------------------------------
  Net investment income (d)                         $0.41            $0.42            $0.41            $0.41            $0.44
  Net realized and unrealized gain (loss)
  on investments                                    (0.06)           (0.13)            0.17             0.25            (0.20)
- -----------------------------------------------------------------------------------------------------------------------------
Total from investment operations                    $0.35            $0.29            $0.58            $0.66            $0.24
- -----------------------------------------------------------------------------------------------------------------------------
LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS
- -----------------------------------------------------------------------------------------------------------------------------
  From net investment income                       $(0.40)          $(0.41)          $(0.42)          $(0.44)          $(0.46)
- -----------------------------------------------------------------------------------------------------------------------------
Net asset value, end of period                      $8.53            $8.58            $8.70            $8.54            $8.32
- -----------------------------------------------------------------------------------------------------------------------------
Total return (%) (t)(s)(r)                           4.18             3.49             6.94             8.00             2.78
- -----------------------------------------------------------------------------------------------------------------------------

RATIOS (%) (TO AVERAGE NET ASSETS)
AND SUPPLEMENTAL DATA:
- -----------------------------------------------------------------------------------------------------------------------------
Expenses before expense reductions (f)               1.06             1.04             1.04             1.05             1.15
Expenses after expense reductions (f)                0.81             0.79             0.88             0.90             0.91
Net investment income                                4.71             4.90             4.80             4.85             5.12
Portfolio turnover                                      9                8                9               13               15
Net assets at end of period (000 Omitted)        $240,212         $241,850         $264,797         $274,442         $276,719
- -----------------------------------------------------------------------------------------------------------------------------

SEE NOTES TO FINANCIAL STATEMENTS




Financial Highlights - continued

CLASS B

                                                                                YEARS ENDED 3/31
                                                   --------------------------------------------------------------------------
                                                         2006            2005            2004            2003            2002
                                                                                                         
Net asset value, beginning of period                    $8.59           $8.72           $8.55           $8.33           $8.55
- -----------------------------------------------------------------------------------------------------------------------------
INCOME (LOSS) FROM INVESTMENT OPERATIONS
- -----------------------------------------------------------------------------------------------------------------------------
  Net investment income (d)                             $0.34           $0.36           $0.35           $0.35           $0.37
  Net realized and unrealized gain (loss)
  on investments                                        (0.05)          (0.14)           0.18            0.24           (0.20)
- -----------------------------------------------------------------------------------------------------------------------------
Total from investment operations                        $0.29           $0.22           $0.53           $0.59           $0.17
- -----------------------------------------------------------------------------------------------------------------------------
LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS
- -----------------------------------------------------------------------------------------------------------------------------
  From net investment income                           $(0.34)         $(0.35)         $(0.36)         $(0.37)         $(0.39)
- -----------------------------------------------------------------------------------------------------------------------------
Net asset value, end of period                          $8.54           $8.59           $8.72           $8.55           $8.33
- -----------------------------------------------------------------------------------------------------------------------------
Total return (%) (t)(s)(r)                               3.40            2.60            6.27            7.19            2.00
- -----------------------------------------------------------------------------------------------------------------------------

RATIOS (%) (TO AVERAGE NET ASSETS)
AND SUPPLEMENTAL DATA:
- -----------------------------------------------------------------------------------------------------------------------------
Expenses before expense reductions (f)                   1.81            1.79            1.79            1.80            1.90
Expenses after expense reductions (f)                    1.56            1.54            1.63            1.65            1.66
Net investment income                                    3.96            4.15            4.05            4.10            4.37
Portfolio turnover                                          9               8               9              13              15
Net assets at end of period (000 Omitted)             $36,752         $43,930         $52,594         $59,591         $61,627
- -----------------------------------------------------------------------------------------------------------------------------

SEE NOTES TO FINANCIAL STATEMENTS




Financial Highlights - continued

CLASS C
                                                                                YEARS ENDED 3/31
                                                   --------------------------------------------------------------------------
                                                         2006            2005            2004            2003            2002
                                                                                                         
Net asset value, beginning of period                    $8.61           $8.73           $8.56           $8.34           $8.56
- -----------------------------------------------------------------------------------------------------------------------------
INCOME (LOSS) FROM INVESTMENT OPERATIONS
- -----------------------------------------------------------------------------------------------------------------------------
  Net investment income (d)                             $0.35           $0.36           $0.35           $0.35           $0.37
  Net realized and unrealized gain (loss)
  on investments                                        (0.06)          (0.13)           0.18            0.24           (0.20)
- -----------------------------------------------------------------------------------------------------------------------------
Total from investment operations                        $0.29           $0.23           $0.53           $0.59           $0.17
- -----------------------------------------------------------------------------------------------------------------------------
LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS
- -----------------------------------------------------------------------------------------------------------------------------
  From net investment income                           $(0.34)         $(0.35)         $(0.36)         $(0.37)         $(0.39)
- -----------------------------------------------------------------------------------------------------------------------------
Net asset value, end of period                          $8.56           $8.61           $8.73           $8.56           $8.34
- -----------------------------------------------------------------------------------------------------------------------------
Total return (%) (t)(s)(r)                               3.41            2.72            6.27            7.18            2.00
- -----------------------------------------------------------------------------------------------------------------------------

RATIOS (%) (TO AVERAGE NET ASSETS)
AND SUPPLEMENTAL DATA:
- -----------------------------------------------------------------------------------------------------------------------------
Expenses before expense reductions (f)                   1.81            1.79            1.79            1.80            1.90
Expenses after expense reductions (f)                    1.56            1.54            1.63            1.65            1.66
Net investment income                                    4.09            4.15            4.05            4.10            4.37
Portfolio turnover                                          9               8               9              13              15
Net assets at end of period (000 Omitted)             $34,618         $33,911         $37,508         $39,420         $36,146
- -----------------------------------------------------------------------------------------------------------------------------

Any redemption fees charged by the fund during the 2004 and 2005 fiscal years resulted in a per share impact of less
than $0.01.

(d) Per share data are based on average shares outstanding.
(f) Ratios do not reflect reductions from fees paid indirectly.
(r) Certain expenses have been reduced without which performance would have been lower.
(s) From time to time the fund may receive proceeds from litigation settlements, without which performance would be lower.
(t) Total returns do not include any applicable sales charges.

SEE NOTES TO FINANCIAL STATEMENTS



NOTES TO FINANCIAL STATEMENTS

(1) BUSINESS AND ORGANIZATION

MFS Municipal Income Fund (the fund) is a series of MFS Municipal Series Trust
(the trust). The trust is organized as a Massachusetts business trust and is
registered under the Investment Company Act of 1940, as amended, as an open-
end management investment company.

(2) SIGNIFICANT ACCOUNTING POLICIES

GENERAL - The preparation of financial statements in conformity with U.S.
generally accepted accounting principles requires management to make estimates
and assumptions that affect the reported amounts of assets and liabilities,
and disclosure of contingent assets and liabilities at the date of the
financial statements and the reported amounts of revenues and expenses during
the reporting period. Actual results could differ from those estimates.
Municipal securities backed by current or anticipated revenues from a specific
project or specific assets can be negatively affected by the discontinuance of
the taxation supporting the projects or assets or the inability to collect
revenues for the project or from the assets. If the Internal Revenue Service
determines an issuer of a municipal security has not complied with applicable
tax requirements, the security could decline in value, interest from the
security could become taxable and the fund may be required to issue Forms
1099-DIV.

INVESTMENT VALUATIONS - Debt instruments (other than short-term instruments),
including restricted debt instruments, are generally valued at an evaluated
bid price as reported by an independent pricing service. Values of debt
instruments obtained from pricing services can utilize both dealer-supplied
valuations and electronic data processing techniques which take into account
factors such as institutional-size trading in similar groups of securities,
yield, quality, coupon rate, maturity, type of issue, trading characteristics
and other market data. Short-term instruments with a maturity at issuance of
365 days or less are generally valued at amortized cost, which approximates
market value. Swaps are generally valued on the basis of quotations from
brokers and dealers. Securities and other assets generally valued on the basis
of information from an independent pricing service may also be valued on the
basis of information from brokers and dealers. When pricing-service
information or market quotations are not readily available, securities are
priced at fair value as determined under the direction of the Board of
Trustees.

DERIVATIVE RISK - The fund may invest in derivatives for hedging or non-
hedging purposes. While hedging can reduce or eliminate losses, it can also
reduce or eliminate gains. When the fund uses derivatives as an investment to
gain market exposure, or for hedging purposes, gains and losses from
derivative instruments may be substantially greater than the derivative's
original cost. Derivative instruments include swap agreements.

SWAP AGREEMENTS - The fund may enter into swap agreements. A swap is an
exchange of cash payments between the fund and another party. Net cash
payments are exchanged at specified intervals and are recorded as a realized
gain or loss in the Statement of Operations. The value of the swap is adjusted
daily and the change in value is recorded as unrealized appreciation or
depreciation in the Statement of Operations. Risks may arise upon entering
into these agreements from the potential inability of counterparties to meet
the terms of their contract and from unanticipated changes in the value of the
financial index on which the swap agreement is based. Interest rate swap
agreements are agreements to exchange cash flows periodically based on a
notional principal amount, such as the exchange of fixed rate interest
payments for floating rate interest payments, which are based on a specific
financial index, or the exchange of two distinct floating rate payments. The
net receivable or payable associated with these payments is accrued daily and
recorded as an unrealized gain or loss, and any payments received or made are
recorded as realized gains or losses, in the Statement of Operations. The
primary risk associated with interest rate swap agreements is that unfavorable
changes in the fluctuation of interest rates could adversely impact the fund.

SHORT TERM FEES - For purchases made on or after July 1, 2004 and before April
1, 2005, the fund charged a 2% redemption fee (which was retained by the fund)
on proceeds from Class A, Class B, and Class C shares redeemed or exchanged
within 5 business days following their acquisition (either by purchase or
exchange). Effective April 1, 2005, the fund no longer charges a redemption
fee. See the fund's prospectus for details. Any redemption fees charged are
accounted for as an addition to paid-in capital.

INVESTMENT TRANSACTIONS AND INCOME - Investment transactions are recorded on
the trade date. Interest income is recorded on the accrual basis. All premium
and discount is amortized or accreted for financial statement purposes in
accordance with U.S. generally accepted accounting principles. All premium and
original issue discount is amortized or accreted for tax reporting purposes as
required by federal income tax regulations. The fund may receive proceeds from
litigation settlements involving its portfolio holdings. Any proceeds received
are reflected in realized gain/loss in the Statement of Operations, or in
unrealized gain/loss if the security is still held by the fund.

Legal fees and other related expenses incurred to preserve and protect the
value of a security owned are added to the cost of the security; other legal
fees are expensed. Capital infusions made directly to the security issuer,
which are generally non-recurring, incurred to protect or enhance the value of
high-yield debt securities, are reported as additions to the cost basis of the
security. Costs that are incurred to negotiate the terms or conditions of
capital infusions or that are expected to result in a plan of reorganization
are reported as realized losses. Ongoing costs incurred to protect or enhance
an investment, or costs incurred to pursue other claims or legal actions, are
expensed.

FEES PAID INDIRECTLY - The fund's custody fee is reduced according to an
arrangement that measures the value of cash deposited with the custodian by
the fund. This amount, for the year ended March 31, 2006, is shown as a
reduction of total expenses on the Statement of Operations.

TAX MATTERS AND DISTRIBUTIONS - The fund intends to continue to qualify as a
regulated investment company, as defined under Subchapter M of the Internal
Revenue Code, and to distribute all of its taxable and tax-exempt income,
including realized capital gains. Accordingly, no provision for federal income
tax is required in the financial statements.

Distributions to shareholders are recorded on the ex-dividend date. Income and
capital gain distributions are determined in accordance with income tax
regulations, which may differ from generally accepted accounting principles.
Certain capital accounts in the financial statements are periodically adjusted
for permanent differences in order to reflect their tax character. These
adjustments have no impact on net assets or net asset value per share.
Temporary differences which arise from recognizing certain items of income,
expense, gain or loss in different periods for financial statement and tax
purposes will reverse at some time in the future. Distributions in excess of
net investment income or net realized gains are temporary overdistributions
for financial statement purposes resulting from differences in the recognition
or classification of income or distributions for financial statement and
tax purposes.

Book/tax differences primarily relate to amortization and accretion of
debt securities.

The tax character of distributions declared to shareholders is as follows:

                                      MARCH 31, 2006    MARCH 31, 2005
      Ordinary income (including any
      short-term capital gains)                  $--           $27,254
      Tax-exempt income                   14,360,201        15,355,366
      ----------------------------------------------------------------
      Total distributions                $14,360,201       $15,382,620

The federal tax cost and the tax basis components of distributable earnings
were as follows:

          AS OF MARCH 31, 2006

          Cost of investments                           $290,150,614
          ----------------------------------------------------------
          Gross appreciation                             $22,050,402
          Gross depreciation                              (3,806,355)
          ----------------------------------------------------------
          Net unrealized appreciation (depreciation)     $18,244,047
          Undistributed tax-exempt income                 $1,078,782
          Capital loss carryforwards                      (4,190,232)
          Other temporary differences                       (977,077)

As of March 31, 2006, the fund had available capital loss carryforwards to
offset future realized gains. Such losses expire as follows:

          March 31, 2011                                   $(104,559)
          March 31, 2012                                  (4,085,673)
          ----------------------------------------------------------
                                                         $(4,190,232)

MULTIPLE CLASSES OF SHARES OF BENEFICIAL INTEREST - The fund offers multiple
classes of shares, which differ in their respective distribution and service
fees. All shareholders bear the common expenses of the fund based on the value
of settled shares outstanding of each class, without distinction between share
classes. Dividends are declared separately for each class. Differences in per
share dividend rates are generally due to differences in separate class
expenses. Class B shares will convert to Class A shares approximately eight
years after purchase.

(3) TRANSACTIONS WITH AFFILIATES

INVESTMENT ADVISER - The fund has an investment advisory agreement with
Massachusetts Financial Services Company (MFS) to provide overall investment
advisory and administrative services, and general office facilities. The
management fee is computed daily and paid monthly at an annual rate of 0.55%
of the fund's average daily net assets. As part of a settlement agreement with
the New York Attorney General concerning market timing and related matters,
MFS has agreed to reduce the management fee to 0.30% of the fund's average
daily net assets for the period March 1, 2004 through February 28, 2009.
For the year ended March 31, 2006, this waiver amounted to $794,807 and is
reflected as a reduction of total expenses in the Statement of Operations.

The management fee incurred for the year ended March 31, 2006 was equivalent
to an annual effective rate of 0.30% of the fund's average daily
net assets.

DISTRIBUTOR - MFS Fund Distributors, Inc. (MFD), a wholly owned subsidiary of
MFS, as distributor, received $57,357 for the year ended March 31, 2006, as
its portion of the initial sales charge on sales of Class A shares of the
fund.

The Board of Trustees has adopted a distribution plan for certain class shares
pursuant to Rule 12b-1 of the Investment Company Act of 1940.

The fund's distribution plan provides that the fund will pay MFD for services
provided by MFD and financial intermediaries in connection with the
distribution and servicing of certain share classes. One component of the plan
is a distribution fee paid to MFD and another component of the plan is a
service fee paid to MFD. MFD may subsequently pay all, or a portion, of the
distribution and/or service fees to financial intermediaries.

Distribution Fee Plan Table:
                                               TOTAL      ANNUAL   DISTRIBUTION
            DISTRIBUTION      SERVICE   DISTRIBUTION   EFFECTIVE    AND SERVICE
                FEE RATE     FEE RATE        PLAN(1)     RATE(2)            FEE

Class A            0.10%        0.25%          0.35%       0.25%       $608,334
Class B            0.75%        0.25%          1.00%       1.00%        400,650
Class C            0.75%        0.25%          1.00%       1.00%        345,034
- --------------------------------------------------------------------------------
Total Distribution and Service Fees$1,354,018

(1) In accordance with the distribution plan for certain classes, the fund
    pays distribution and/or service fees up to these annual percentage rates
    of each class' average daily net assets.
(2) The annual effective rates represent actual fees incurred under the
    distribution plan for the year ended March 31, 2006 based on each class'
    average daily net assets. Payment of the 0.10% annual Class A distribution
    fee is not yet implemented and will commence on such date as the fund's
    Board of Trustees may determine.

Certain Class A and Class C shares are subject to a contingent deferred sales
charge in the event of a shareholder redemption within 12 months of purchase.
Class B shares are subject to a contingent deferred sales charge in the event
of a shareholder redemption within six years of purchase. All contingent
deferred sales charges are paid to MFD and during the year ended March 31,
2006, were as follows:

                                                          AMOUNT

              Class A                                     $8,903
              Class B                                    $59,246
              Class C                                     $4,632

SHAREHOLDER SERVICING AGENT - The fund pays a portion of shareholder servicing
costs to MFS Service Center, Inc. (MFSC), a wholly-owned subsidiary of MFS.
MFSC receives a fee from the fund, for its services as shareholder servicing
agent, set periodically under the supervision of the fund's Board of Trustees.
For the year ended March 31, 2006, the fee was $335,209, which equated to
0.1054% annually of the fund's average daily net assets. MFSC also receives
payment from the fund for out-of-pocket and sub-accounting expenses paid by
MFSC on behalf of the fund. For the year ended March 31, 2006, these costs
amounted to $79,495.

ADMINISTRATOR - MFS provides certain financial, legal, shareholder
communications, compliance, and other administrative services to certain funds
for which MFS acts as investment adviser. Under an administrative services
agreement, the funds may partially reimburse MFS the costs incurred to provide
these services, subject to review and approval by the Board of Trustees. Each
fund is charged a fixed amount plus a fee based on calendar year average net
assets. Effective July 1, 2005, the fund's annual fixed amount is $10,000. The
administrative services fee incurred for the year ended March 31, 2006 was
equivalent to an annual effective rate of 0.0137% of the fund's average daily
net assets.

TRUSTEES' AND OFFICERS' COMPENSATION - The fund pays compensation to
Independent Trustees in the form of a retainer, attendance fees, and
additional compensation to Board and Committee chairpersons. The fund does not
pay compensation directly to Trustees who are officers of the investment
adviser, or to officers of the fund, all of whom receive remuneration for
their services to the fund from MFS. Certain officers and Trustees of the fund
are officers or directors of MFS, MFD, and MFSC. The fund has an unfunded,
defined benefit plan for retired Independent Trustees which resulted in a
pension expense of $5,751. This amount is included in Independent trustees'
compensation for the year ended March 31, 2006. The deferred liability for
retirement benefits payable to retired Trustees amounted to $31,194 at March
31, 2006, and is included in payable for independent trustees' compensation.

OTHER - This fund and certain other MFS funds (the funds) have entered into a
services agreement (the Agreement) which provides for payment of fees by the
funds to Tarantino LLC in return for the provision of services of an
Independent Chief Compliance Officer (ICCO) for the funds. The ICCO is an
officer of the funds and the sole member of Tarantino LLC. The funds can
terminate the Agreement with Tarantino LLC at any time under the terms of the
Agreement. For the year ended March 31, 2006, the fee paid to Tarantino LLC
was $2,125. MFS has agreed to reimburse the fund for a portion of the payments
made by the funds to Tarantino LLC in the amount of $1,873, which is shown as
a reduction of total expenses in the Statement of Operations. Additionally,
MFS has agreed to bear all expenses associated with office space, other
administrative support, and supplies provided to the ICCO.

(4) PORTFOLIO SECURITIES

Purchases and sales of investments, other than U.S. government securities,
purchased option transactions, and short-term obligations, aggregated
$27,704,803 and $31,794,529, respectively.

(5) SHARES OF BENEFICIAL INTEREST

The fund's Declaration of Trust permits the Trustees to issue an unlimited
number of full and fractional shares of beneficial interest. Transactions in
fund shares were as follows:



                                                  YEAR ENDED 3/31/06               YEAR ENDED 3/31/05
                                               SHARES           AMOUNT          SHARES           AMOUNT
                                                                                    
Shares sold
  Class A                                      3,325,237       $28,649,761      1,567,579       $13,461,021
  Class B                                        537,071         4,625,461        454,146         3,903,573
  Class C                                        633,255         5,472,817        544,452         4,690,961
- --------------------------------------------------------------------------------------------------------------
                                               4,495,563       $38,748,039      2,566,177       $22,055,555

Shares issued to shareholders in
reinvestment of distributions
  Class A                                        734,629        $6,332,181        849,343        $7,292,898
  Class B                                         90,476           781,204        118,406         1,017,998
  Class C                                        104,388           902,609        119,904         1,032,616
- ------------------------------------------------------------------------------------------------------------
                                                 929,493        $8,015,994      1,087,653        $9,343,512

Shares reacquired
  Class A                                     (4,066,222)     $(34,988,521)    (4,659,350)     $(39,924,894)
  Class B                                     (1,435,040)      (12,389,239)    (1,495,083)      (12,809,285)
  Class C                                       (634,387)       (5,480,398)    (1,021,491)       (8,771,734)
- ------------------------------------------------------------------------------------------------------------
                                              (6,135,649)     $(52,858,158)    (7,175,924)     $(61,505,913)

Net change
  Class A                                         (6,356)          $(6,579)    (2,242,428)     $(19,170,975)
  Class B                                       (807,493)       (6,982,574)      (922,531)       (7,887,714)
  Class C                                        103,256           895,028       (357,135)       (3,048,157)
- ------------------------------------------------------------------------------------------------------------
                                                (710,593)      $(6,094,125)    (3,522,094)     $(30,106,846)


(6) LINE OF CREDIT

The fund and other affiliated funds participate in a $1 billion unsecured line
of credit provided by a syndication of banks under a credit agreement.
Borrowings may be made for temporary financing needs. Interest is charged to
each fund, based on its borrowings, at a rate equal to the Federal Reserve
funds rate plus 0.35%. In addition, a commitment fee, based on the average
daily, unused portion of the line of credit, is allocated among the
participating funds at the end of each calendar quarter. The commitment fee
allocated to the fund for the year ended March 31, 2006 was $2,047, and is
included in miscellaneous expense on the Statement of Operations. The fund had
no significant borrowings during the year ended March 31, 2006.

(7) CONCENTRATION OF CREDIT RISK

At March 31, 2006, 40% of securities in the portfolio of investments are
backed by letters of credit or bond insurance of various financial
institutions and financial guaranty assurance agencies. The percentage of
investments insured by or supported (backed) by a letter of credit from any
one institution or agency did not exceed 14.5% of total investments.


REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To The Trustees of MFS Municipal Series Trust and the Shareholders of
MFS Municipal Income Fund:

We have audited the accompanying statement of assets and liabilities, including
the portfolio of investments, of MFS Municipal Income Fund (one of the series
comprising MFS Municipal Series Trust) (the "Trust") as of March 31, 2006, and
the related statement of operations for the year then ended, the statements of
changes in net assets for each of the two years in the period then ended, and
the financial highlights for each of the five years in the period then ended.
These financial statements and financial highlights are the responsibility of
the Trust's management. Our responsibility is to express an opinion on these
financial statements and financial highlights based on our audit.

We conducted our audits in accordance with the standards of the Public Company
Accounting Oversight Board (United States). Those standards require that we
plan and perform the audit to obtain reasonable assurance about whether the
financial statements and financial highlights are free of material
misstatement. The Trust is not required to have, nor were we engaged to
perform, an audit of its internal control over financial reporting. Our audits
included consideration of internal control over financial reporting as a basis
for designing audit procedures that are appropriate in the circumstances, but
not for the purpose of expressing an opinion on the effectiveness of the
Trust's internal control over financial reporting. Accordingly, we express no
such opinion. An audit also includes examining, on a test basis, evidence
supporting the amounts and disclosures in the financial statements, assessing
the accounting principles used and significant estimates made by management,
as well as evaluating the overall financial statement presentation. Our
procedures included confirmation of securities owned as of March 31, 2006, by
correspondence with the custodian and brokers; where replies were not received
from brokers, we performed other auditing procedures. We believe that our
audits provide a reasonable basis for our opinion.

In our opinion, such financial statements and financial highlights present
fairly, in all material respects, the financial position of MFS Muncipal
Income Fund as of March 31, 2006, the results of its operations for the year
then ended, the changes in its net assets for each of the two years in the
period then ended, and its financial highlights for each of the five years in
the period then ended, in conformity with accounting principles generally
accepted in the United States of America.

DELOITTE & TOUCHE LLP

Boston, Massachusetts
May 23, 2006



TRUSTEES AND OFFICERS -- IDENTIFICATION AND BACKGROUND

The Trustees and officers of the Trust, as of May 1, 2006, are listed below, together with their
principal occupations during the past five years. (Their titles may have varied during that period.) The
address of each Trustee and officer is 500 Boylston Street, Boston, Massachusetts 02116.


                                                                          PRINCIPAL OCCUPATIONS DURING
                                POSITION(s) HELD    TRUSTEE/OFFICER          THE PAST FIVE YEARS &
NAME, DATE OF BIRTH                 WITH FUND           SINCE(H)             OTHER DIRECTORSHIPS(J)
- -------------------             ----------------    ---------------    ----------------------------------
                                                              

INTERESTED TRUSTEES
Robert J. Manning(k)            Trustee            February 2004       Massachusetts Financial Services
(born 10/20/63)                                                        Company, Chief Executive Officer,
                                                                       President, Chief Investment
                                                                       Officer and Director

Robert C. Pozen(k)              Trustee            February 2004       Massachusetts Financial Services
(born 08/08/46)                                                        Company, Chairman (since February
                                                                       2004); Secretary of Economic
                                                                       Affairs, The Commonwealth of
                                                                       Massachusetts (January 2002 to
                                                                       December 2002); Fidelity
                                                                       Investments, Vice Chairman (June
                                                                       2000 to December 2001); Fidelity
                                                                       Management & Research Company
                                                                       (investment adviser), President
                                                                       (March 1997 to July 2001); Bell
                                                                       Canada Enterprises
                                                                       (telecommunications), Director;
                                                                       Medtronic, Inc. (medical
                                                                       technology), Director; Telesat
                                                                       (satellite communications),
                                                                       Director

INDEPENDENT TRUSTEES
J. Atwood Ives                  Trustee and Chair  February 1992       Private investor; Eastern
(born 05/01/36)                 of Trustees                            Enterprises (diversified services
                                                                       company), Chairman, Trustee and
                                                                       Chief Executive Officer (until
                                                                       November 2000)

Robert E. Butler(n)             Trustee            January 2006        Consultant - regulatory and
(born 11/29/41)                                                        compliance matters (since July
                                                                       2002); PricewaterhouseCoopers LLP
                                                                       (professional services firm),
                                                                       Partner (November 2000 until June
                                                                       2002)

Lawrence H. Cohn, M.D.          Trustee            August 1993         Brigham and Women's Hospital,
(born 03/11/37)                                                        Senior Cardiac Surgeon, Chief of
                                                                       Cardiac Surgery (until 2005);
                                                                       Harvard Medical School, Professor
                                                                       of Surgery; Brigham and Women's
                                                                       Hospital Physicians' Organization,
                                                                       Chair (2000 to 2004)

David H. Gunning                Trustee            January 2004        Cleveland-Cliffs Inc. (mining
(born 05/30/42)                                                        products and service provider),
                                                                       Vice Chairman/Director (since
                                                                       April 2001); Encinitos Ventures
                                                                       (private investment company),
                                                                       Principal (1997 to April 2001);
                                                                       Lincoln Electric Holdings, Inc.
                                                                       (welding equipment manufacturer),
                                                                       Director

William R. Gutow                Trustee            December 1993       Private investor and real estate
(born 09/27/41)                                                        consultant; Capitol Entertainment
                                                                       Management Company (video
                                                                       franchise), Vice Chairman

Michael Hegarty                 Trustee            December 2004       Retired; AXA Financial (financial
(born 12/21/44)                                                        services and insurance), Vice
                                                                       Chairman and Chief Operating
                                                                       Officer (until May 2001); The
                                                                       Equitable Life Assurance Society
                                                                       (insurance), President and Chief
                                                                       Operating Officer (until May 2001)

Lawrence T. Perera              Trustee            July 1981           Hemenway & Barnes (attorneys),
(born 06/23/35)                                                        Partner

J. Dale Sherratt                Trustee            August 1993         Insight Resources, Inc.
(born 09/23/38)                                                        (acquisition planning
                                                                       specialists), President; Wellfleet
                                                                       Investments (investor in health
                                                                       care companies), Managing General
                                                                       Partner (since 1993); Cambridge
                                                                       Nutraceuticals (professional
                                                                       nutritional    products),    Chief
                                                                       Executive Officer (until May 2001)

Laurie J. Thomsen               Trustee            March 2005          Private investor; Prism Venture
(born 08/05/57)                                                        Partners (venture capital), Co-
                                                                       founder and General Partner (until
                                                                       June 2004); St. Paul Travelers
                                                                       Companies (commercial property
                                                                       liability insurance), Director

Robert W. Uek                   Trustee            January 2006        Retired (since 1999);
(born 05/18/41)                                                        PricewaterhouseCoopers LLP
                                                                       (professional services firm),
                                                                       Partner (until 1999); Consultant
                                                                       to investment company industry
                                                                       (since 2000); TT International
                                                                       Funds (mutual fund complex),
                                                                       Trustee (2000 until 2005);
                                                                       Hillview Investment Trust II Funds
                                                                       (mutual fund complex), Trustee
                                                                       (2000 until 2005)

OFFICERS
Maria F. Dwyer(k)               President          November 2005       Massachusetts Financial Services
(born 12/01/58)                                                        Company, Executive Vice President
                                                                       and Chief Regulatory Officer
                                                                       (since March 2004); Fidelity
                                                                       Management & Research Company,
                                                                       Vice President (prior to March
                                                                       2004); Fidelity Group of Funds,
                                                                       President and Treasurer (prior to
                                                                       March 2004)

Tracy Atkinson(k)               Treasurer          September 2005      Massachusetts Financial Services
(born 12/30/64)                                                        Company, Senior Vice President
                                                                       (since September 2004);
                                                                       PricewaterhouseCoopers LLP,
                                                                       Partner (prior to September 2004)

Christopher R. Bohane(k)        Assistant          July 2005           Massachusetts Financial Services
(born 1/18/74)                  Secretary and                          Company, Vice President and Senior
                                Assistant Clerk                        Counsel (since April 2003);
                                                                       Kirkpatrick & Lockhart LLP (law
                                                                       firm), Associate (prior to April
                                                                       2003); Nvest Services Company,
                                                                       Assistant Vice President and
                                                                       Associate Counsel (prior to
                                                                       January 2001)

Ethan D. Corey(k)               Assistant          July 2005           Massachusetts Financial Services
(born 11/21/63)                 Secretary and                          Company, Special Counsel (since
                                Assistant Clerk                        December 2004); Dechert LLP (law
                                                                       firm), Counsel (prior to December
                                                                       2004)

David L. DiLorenzo(k)           Assistant          July 2005           Massachusetts Financial Services
(born 8/10/68)                  Treasurer                              Company, Vice President (since
                                                                       June 2005); JP Morgan Investor
                                                                       Services, Vice President (January
                                                                       2001 to June 2005); State Street
                                                                       Bank, Vice President and Corporate
                                                                       Audit Manager (prior to January
                                                                       2001)

Timothy M. Fagan(k)             Assistant          September 2005      Massachusetts Financial Services
(born 7/10/68)                  Secretary and                          Company, Vice President and Senior
                                Assistant Clerk                        Counsel (since September 2005);
                                                                       John Hancock Advisers, LLC, Vice
                                                                       President and Chief Compliance
                                                                       Officer (September 2004 to August
                                                                       2005), Senior Attorney (prior to
                                                                       September 2004); John Hancock
                                                                       Group of Funds, Vice President and
                                                                       Chief Compliance Officer
                                                                       (September 2004 to December 2004)

Mark D. Fischer(k)              Assistant          July 2005           Massachusetts Financial Services
(born 10/27/70)                 Treasurer                              Company, Vice President (since May
                                                                       2005); JP Morgan Investment
                                                                       Management Company, Vice President
                                                                       (prior to May 2005)

Ellen Moynihan(k)               Assistant          April 1997          Massachusetts Financial Services
(born 11/13/57)                 Treasurer                              Company, Senior Vice President

Susan S. Newton(k)              Assistant          May 2005            Massachusetts Financial Services
(born 03/07/50)                 Secretary and                          Company, Senior Vice President and
                                Assistant Clerk                        Associate General Counsel (since
                                                                       April 2005); John Hancock
                                                                       Advisers, LLC, Senior Vice
                                                                       President, Secretary and Chief
                                                                       Legal Officer (prior to April
                                                                       2005); John Hancock Group of
                                                                       Funds, Senior Vice President,
                                                                       Secretary and Chief Legal Officer
                                                                       (prior to April 2005)

Susan A. Pereira(k)             Assistant          July 2005           Massachusetts Financial Services
(born 11/05/70)                 Secretary and                          Company, Vice President and Senior
                                Assistant Clerk                        Counsel (since June 2004); Bingham
                                                                       McCutchen LLP (law firm),
                                                                       Associate (January 2001 to June
                                                                       2004); Preti, Flaherty, Beliveau,
                                                                       Pachios & Haley, LLC, Associate
                                                                       (prior to January 2001)

Mark N. Polebaum(k)             Secretary and      January 2006        Massachusetts Financial Services
(born 05/01/52)                 Clerk                                  Company, Executive Vice President,
                                                                       General Counsel and Secretary
                                                                       (since January 2006); Wilmer
                                                                       Cutler Pickering Hale and Dorr LLP
                                                                       (law firm), Partner (prior to
                                                                       January 2006)

Frank L. Tarantino              Independent Chief  June 2004           Tarantino LLC (provider of
(born 03/07/44)                 Compliance                             compliance services), Principal
                                Officer                                (since June 2004); CRA Business
                                                                       Strategies Group (consulting
                                                                       services), Executive Vice
                                                                       President (April 2003 to June
                                                                       2004); David L. Babson & Co.
                                                                       (investment adviser), Managing
                                                                       Director, Chief Administrative
                                                                       Officer and Director (February
                                                                       1997 to March 2003)

James O. Yost(k)                Assistant          September 1990      Massachusetts Financial Services
(born 06/12/60)                 Treasurer                              Company, Senior Vice President

- ------------
(h) Date first appointed to serve as Trustee/officer of an MFS fund. Each Trustee has served
    continuously since appointment unless indicated otherwise.
(j) Directorships or trusteeships of companies required to report to the Securities and Exchange
    Commission (i.e., "public companies").
(k) "Interested person" of the Trust within the meaning of the Investment Company Act of 1940 (referred
    to as the 1940 Act), which is the principal federal law governing investment companies like the
    fund, as a result of position with MFS. The address of MFS is 500 Boylston Street, Boston,
    Massachusetts 02116.
(n) In 2004 and 2005, Mr. Butler provided consulting services to the independent compliance consultant
    retained by MFS pursuant to its settlement with the SEC concerning market timing and related
    matters. The terms of that settlement required that compensation and expenses related to the
    independent compliance consultant be borne exclusively by MFS and, therefore, MFS paid Mr. Butler
    for the services he rendered to the independent compliance consultant. In 2004 and 2005, MFS paid
    Mr. Butler a total of $351,119.29.

Each Trustee and officer holds office until his or her successor is chosen and qualified or until his or
her earlier death, resignation, retirement or removal. Messrs. Butler, Sherratt and Uek and Ms. Thomsen
are members of the Trust's Audit Committee.

Each of the Trust's Trustees and officers holds comparable positions with certain other funds of which
MFS or a subsidiary is the investment adviser or distributor, and, in the case of the officers, with
certain affiliates of MFS. As of December 31, 2005, each Trustee served as a board member of 98 funds
within the MFS Family of Funds.

The Trust held a shareholders' meeting in 2005, and will hold a shareholders' meeting at least once
every five years thereafter, to elect Trustees.

The Statement of Additional Information contains further information about the Trustees and is available
without charge upon request by calling 1-800-225-2606.

- -----------------------------------------------------------------------------------------------------------

INVESTMENT ADVISER                                                 CUSTODIAN
Massachusetts Financial Services Company                           State Street Bank and Trust Company
500 Boylston Street, Boston, MA                                    225 Franklin Street, Boston, MA 02110
02116-3741
                                                                   INDEPENDENT REGISTERED PUBLIC
DISTRIBUTOR                                                        ACCOUNTING FIRM
MFS Fund Distributors, Inc.                                        Deloitte & Touche LLP
500 Boylston Street, Boston, MA                                    200 Berkeley Street, Boston, MA 02116
02116-3741

PORTFOLIO MANAGER
Geoffrey L. Schechter



BOARD REVIEW OF INVESTMENT ADVISORY AGREEMENT

A discussion regarding the Board's most recent review and renewal of the
Fund's investment advisory agreement is available by clicking on the fund's
name under "Select a fund" on the MFS Web site (mfs.com).

PROXY VOTING POLICIES AND INFORMATION

A general description of the MFS funds' proxy voting policies and procedures is
available without charge, upon request, by calling 1-800-225-2606, by visiting
the Proxy Voting section of mfs.com or by visiting the SEC's Web site at
http://www.sec.gov.

Information regarding how the fund voted proxies relating to portfolio
securities during the most recent twelve-month period ended June 30 is
available without charge by visiting the Proxy Voting section of mfs.com or by
visiting the SEC's Web site at http://www.sec.gov.

QUARTERLY PORTFOLIO DISCLOSURE

The fund will file a complete schedule of portfolio holdings with the
Securities and Exchange Commission (the Commission) for the first and third
quarters of each fiscal year on Form N-Q. The fund's Form N-Q may be reviewed
and copied at the:

  Public Reference Room
  Securities and Exchange Commission
  100 F Street, NE
  Room 1580
  Washington, D.C. 20549

Information on the operation of the Public Reference Room may be obtained by
calling the Commission at 1-202-551-5850. The fund's Form N-Q is
available on the EDGAR database on the Commission's Internet Web site at
http://www.sec.gov, and copies of this information may be obtained, upon
payment of a duplicating fee, by electronic request at the following e-mail
address: publicinfo@sec.gov or by writing the Public Reference Section at the
above address.

A shareholder can also obtain the quarterly portfolio holdings report at
mfs.com.

FEDERAL TAX INFORMATION (unaudited)

The fund will notify shareholders of amounts for use in preparing 2006 income
tax forms in January 2007. The following information is provided pursuant to
provisions of the Internal Revenue Code.

Of the dividends paid from net investment income during the fiscal year, 100%
is designated as exempt interest dividends for federal income tax purposes. If
the fund has earned income on private activity bonds, a portion of the
dividends paid may be considered a tax preference item for purposes of
computing a shareholder's alternative minimum tax.


CONTACT INFORMATION

INVESTOR SERVICE

Write to us at: MFS Service Center, Inc.
                P.O. Box 55824
                Boston, MA 02205-5824

Type of Information            Phone number           Hours, Eastern Time
- --------------------------------------------------------------------------------
General information            1-800-225-2606         8 a.m. to 8 p.m., any
                                                      business day
- --------------------------------------------------------------------------------
Speech- or hearing-impaired    1-800-637-6576         9 a.m. to 5 p.m., any
                                                      business day
- --------------------------------------------------------------------------------
Shares prices, account         1-800-MFS-TALK
balances exchanges             (1-800-637-8255)       24 hours a day, 365 days a
or stock and bond outlooks     touch-tone required    year
- --------------------------------------------------------------------------------

M F S(SM)
INVESTMENT MANAGEMENT(R)

MFS Investment Management(R)
MFS(R) investment products are offered through MFS Fund Distributors, Inc.,
500 Boylston Street, Boston, MA 02116.
                                                             LMB-ANN-05/06 10M



ITEM 2. CODE OF ETHICS.

The Registrant has adopted a Code of Ethics pursuant to Section 406 of the
Sarbanes-Oxley Act and as defined in Form N-CSR that applies to the
Registrant's principal executive officer and principal financial and accounting
officer. The Registrant has not amended any provision in its Code of Ethics
(the "Code") that relates to an element of the Code's definitions enumerated in
paragraph (b) of Item 2 of this Form N-CSR.

ITEM 3. AUDIT COMMITTEE FINANCIAL EXPERT.

Messrs. Robert E. Butler and Robert W. Uek and Ms. Laurie J. Thomsen, members
of the Audit Committee, have been determined by the Board of Trustees in their
reasonable business judgment to meet the definition of "audit committee
financial expert" as such term is defined in Form N-CSR. In addition, Messrs.
Butler, and Uek and Ms. Thomsen are "independent" members of the Audit
Committee (as such term has been defined by the Securities and Exchange
Commission in regulations implementing Section 407 of the Sarbanes-Oxley Act of
2002). The Securities and Exchange Commission has stated that the designation
of a person as an audit committee financial expert pursuant to this Item 3 on
the Form N-CSR does not impose on such a person any duties, obligations or
liability that are greater than the duties, obligations or liability imposed on
such person as a member of the Audit Committee and the Board of Trustees in the
absence of such designation or identification.

ITEM 4. PRINCIPAL ACCOUNTANT FEES AND SERVICES.

ITEMS 4(a) THROUGH 4(d) AND 4(g):

The Board of Trustees has appointed Deloitte & Touche LLP ("Deloitte") to serve
as independent accountants to each series of the Registrant (collectively, the
"Funds"). The tables below set forth the audit fees billed to the Funds as well
as fees for non-audit services provided to the Funds and/or to the Funds'
investment adviser, Massachusetts Financial Services Company ("MFS") and to
various entities either controlling, controlled by, or under common control
with MFS that provide ongoing services to the Funds ("MFS Related Entities").

For the fiscal years ended March 31, 2006 and 2005, audit fees billed to the
Funds by Deloitte were as follows:



                                                      Audit Fees
        FEES BILLED BY DELOITTE:                  2006            2005

                                                         
       MFS Alabama Municipal Bond Fund         $ 32,954        $ 33,754
       MFS Arkansas Municipal Bond Fund          32,954          33,754
       MFS California Municipal Bond Fund        32,954          33,754
       MFS Florida Municipal Bond Fund           32,954          33,754
       MFS Georgia Municipal Bond Fund           32,954          33,754
       MFS Maryland Municipal Bond Fund          32,954          33,754
       MFS Massachusetts Municipal Bond Fund     32,954          33,754
       MFS Mississippi Municipal Bond Fund       32,954          33,754
       MFS Municipal Income Fund                 36,117          36,917
       MFS New York Municipal Bond Fund          32,954          33,754
       MFS North Carolina Municipal Bond Fund    32,954          33,754
       MFS Pennsylvania Municipal Bond Fund      32,954          33,754
       MFS South Carolina Municipal Bond Fund    32,954          33,754
       MFS Tennessee Municipal Bond Fund         32,954          33,754
       MFS Virginia Municipal Bond Fund          32,954          33,754
       MFS West Virginia Municipal Bond Fund     32,954          33,754
       TOTAL                                   $530,427        $543,227

For the fiscal years ended March 31, 2006 and 2005, fees billed by Deloitte for audit-related, tax and other
services provided to the Funds and for audit-related, tax and other services provided to MFS and MFS Related
Entities were as follows:


                                  Audit-Related Fees(1)             Tax Fees(2)                All Other Fees(3)

FEES BILLED BY DELOITTE:             2006           2005           2006          2005          2006          2005
                                                                                       
  To MFS Alabama
  Municipal Bond Fund              $      0      $        0      $  9,550      $  9,550      $    514      $      0
  To MFS Arkansas
  Municipal Bond Fund                     0               0         9,550         9,550           519             0
  To MFS California
  Municipal Bond Fund                     0               0         9,550         9,550           548             0
  To MFS Florida
  Municipal Bond Fund                     0               0         9,550         9,550           514             0
  To MFS Georgia
  Municipal Bond Fund                     0               0         9,550         9,550           511             0
  To MFS Maryland
  Municipal Bond Fund                     0               0         9,550         9,550           520             0
  To MFS Massachusetts
  Municipal Bond Fund                     0               0         9,550         9,550           532             0
  To MFS Mississippi
  Municipal Bond Fund                     0               0         9,550         9,550           514             0
  To MFS Municipal
  Income Fund                             0               0         9,550         9,550           539             0
  To MFS New York
  Municipal Bond Fund                     0               0         9,550         9,550           524             0
  To MFS North Carolina
  Municipal Bond Fund                     0               0         9,550         9,550           543             0
  To MFS Pennsylvania
  Municipal Bond Fund                     0               0         9,550         9,550           516             0
  To MFS South Carolina
  Municipal Bond Fund                     0               0         9,550         9,550           522             0
  To MFS Tennessee
  Municipal Bond Fund                     0               0         9,550         9,550           518             0
  To MFS Virginia
  Municipal Bond Fund                     0               0         9,550         9,550           539             0
  To MFS West Virginia
  Municipal Bond Fund                     0               0         9,550         9,550           520             0
TOTAL FEES BILLED BY DELOITTE
TO ABOVE FUNDS:                    $      0      $        0      $152,800      $152,800      $  8,393      $      0

  To MFS and MFS Related
  Entities of MFS Alabama
  Municipal Bond Fund*             $931,475      $1,242,066      $      0      $ 62,000      $444,131      $595,000
  To MFS and MFS Related
  Entities of MFS Arkansas
  Municipal Bond Fund*              931,475       1,242,066             0        62,000       444,131       595,000
  To MFS and MFS Related
  Entities of MFS California
  Municipal Bond Fund*              931,475       1,242,066             0        62,000       444,131       595,000
  To MFS and MFS Related
  Entities of MFS Florida
  Municipal Bond Fund*              931,475       1,242,066             0        62,000       444,131       595,000
  To MFS and MFS Related
  Entities of MFS Georgia
  Municipal Bond Fund*              931,475       1,242,066             0        62,000       444,131       595,000
  To MFS and MFS Related
  Entities of MFS Maryland
  Municipal Bond Fund*              931,475       1,242,066             0        62,000       444,131       595,000
  To MFS and MFS Related
  Entities of MFS
  Massachusetts Municipal
  Bond Fund*                        931,475       1,242,066             0        62,000       444,131       595,000
  To MFS and MFS Related
  Entities of MFS
  Mississippi Municipal
  Bond Fund*                        931,475       1,242,066             0        62,000       444,131       595,000
  To MFS and MFS Related
  Entities of MFS Municipal
  Income Fund*                      931,475       1,242,066             0        62,000       444,131       595,000
  To MFS and MFS Related
  Entities of MFS New York
  Municipal Bond Fund*              931,475       1,242,066             0        62,000       444,131       595,000
  To MFS and MFS Related
  Entities of MFS North
  Carolina Municipal Bond
  Fund*                             931,475       1,242,066             0        62,000       444,131       595,000
  To MFS and MFS Related
  Entities of MFS
  Pennsylvania Municipal
  Bond Fund*                        931,475       1,242,066             0        62,000       444,131       595,000
  To MFS and MFS Related
  Entities of MFS South
  Carolina Municipal Bond
  Fund*                             931,475       1,242,066             0        62,000       444,131       595,000
  To MFS and MFS Related
  Entities of MFS Tennessee
  Municipal Bond Fund*              931,475       1,242,066             0        62,000       444,131       595,000
  To MFS and MFS Related
  Entities of MFS Virginia
  Municipal Bond Fund*              931,475       1,242,066             0        62,000       444,131       595,000
  To MFS and MFS Related
  Entities of MFS West
  Virginia Municipal Bond
  Fund*                             931,475       1,242,066             0        62,000       444,131       595,000

AGGREGATE FEES FOR NON-AUDIT
SERVICES:

                                    2006                  2005
                                                
  To MFS Alabama
  Municipal Bond Fund,           $1,493,265           $1,946,217
  MFS and MFS Related
  Entities(#)
  To MFS Arkansas
  Municipal Bond Fund,            1,493,270            1,946,217
  MFS and MFS Related
  Entities(#)
  To MFS California
  Municipal Bond Fund,            1,493,299            1,946,217
  MFS and MFS Related
  Entities(#)
  To MFS Florida
  Municipal Bond Fund,            1,493,265            1,946,217
  MFS and MFS Related
  Entities(#)
  To MFS Georgia
  Municipal Bond Fund,            1,493,262            1,946,217
  MFS and MFS Related
  Entities(#)
  To MFS Maryland
  Municipal Bond Fund,            1,493,271            1,946,217
  MFS and MFS Related
  Entities(#)
  To MFS Massachusetts
  Municipal Bond Fund,            1,493,283            1,946,217
  MFS and MFS Related
  Entities(#)
  To MFS Mississippi
  Municipal Bond Fund,            1,493,265            1,946,217
  MFS and MFS Related
  Entities(#)
  To MFS Municipal
  Income Fund, MFS                1,493,290            1,946,217
  and MFS Related Entities(#)
  To MFS New York
  Municipal Bond Fund,            1,493,275            1,946,217
  MFS and MFS Related
  Entities(#)
  To MFS North Carolina
  Municipal Bond Fund,            1,493,294            1,946,217
  MFS and MFS Related
  Entities(#)
  To MFS Pennsylvania
  Municipal Bond Fund,            1,493,267            1,946,217
  MFS and MFS Related
  Entities(#)
  To MFS South Carolina
  Municipal Bond Fund,            1,493,273            1,946,217
  MFS and MFS Related
  Entities(#)
  To MFS Tennessee
  Municipal Bond Fund,            1,493,269            1,946,217
  MFS and MFS Related
  Entities(#)
  To MFS Virginia
  Municipal Bond Fund,            1,493,290            1,946,217
  MFS and MFS Related
  Entities(#)
  To MFS West Virginia
  Municipal Bond Fund,            1,493,271            1,946,217
  MFS and MFS Related
  Entities(#)

  * This amount reflects the fees billed to MFS and MFS Related Entities for non-audit services relating directly
    to the operations and financial reporting of the Fund (portions of which services also related to the
    operations and financial reporting of other funds within the MFS Funds complex).

(#) This amount reflects the aggregate fees billed by Deloitte for non-audit services rendered to the Funds and
    for non-audit services rendered to MFS and the MFS Related Entities.

(1) The fees included under "Audit-Related Fees" are fees related to assurance and related services that are
    reasonably related to the performance of the audit or review of financial statements, but not reported under
    "Audit Fees," including accounting consultations, agreed-upon procedure reports, attestation reports, comfort
    letters and internal control reviews.

(2) The fees included under "Tax Fees" are fees associated with tax compliance, tax advice and tax planning,
    including services relating to the filing or amendment of federal, state or local income tax returns,
    regulated investment company qualification reviews and tax distribution and analysis.

(3) The fees included under "All Other Fees" are fees for products and services provided by Deloitte other than
    those reported under "Audit Fees," "Audit-Related Fees" and "Tax Fees," including fees for services related
    to sales tax refunds, consultation on internal cost allocations, consultation on allocation of monies
    pursuant to an administrative proceeding regarding disclosure of brokerage allocation practices in connection
    with fund sales, analysis of certain portfolio holdings versus investment styles, review of internal controls
    and review of Rule 38a-1 compliance program.


ITEM 4(e)(1):
Set forth below are the policies and procedures established by the Audit
Committee of the Board of Trustees relating to the pre-approval of audit and
non-audit related services: To the extent required by applicable law,
pre-approval by the Audit Committee of the Board is needed for all audit and
permissible non-audit services rendered to the Funds and all permissible
non-audit services rendered to MFS or MFS Related Entities if the services
relate directly to the operations and financial reporting of the Registrant.
Pre-approval is currently on an engagement-by-engagement basis. In the event
pre-approval of such services is necessary between regular meetings of the
Audit Committee and it is not practical to wait to seek pre-approval at the
next regular meeting of the Audit Committee, pre-approval of such services may
be referred to the Chair of the Audit Committee for approval; provided that the
Chair may not pre-approve any individual engagement for such services exceeding
$50,000 or multiple engagements for such services in the aggregate exceeding
$100,000 between such regular meetings of the Audit Committee. Any engagement
pre-approved by the Chair between regular meetings of the Audit Committee shall
be presented for ratification by the entire Audit Committee at its next
regularly scheduled meeting.

ITEM 4(e)(2):
None, or 0%, of the services relating to the Audit-Related Fees, Tax Fees and
All Other Fees paid by the Fund and MFS and MFS Related Entities relating
directly to the operations and financial reporting of the Registrant disclosed
above were approved by the audit committee pursuant to paragraphs (c)(7)(i)(C)
of Rule 2-01 of Regulation S-X (which permits audit committee approval after
the start of the engagement with respect to services other than audit, review
or attest services, if certain conditions are satisfied).

ITEM 4(f): Not applicable.

ITEM 4(h): The Registrant's Audit Committee has considered whether the
provision by a Registrant's independent registered public accounting firm of
non-audit services to MFS and MFS Related Entities that were not pre-approved
by the Committee (because such services did not relate directly to the
operations and financial reporting of the Registrant) was compatible with
maintaining the independence of the independent registered public accounting
firm as the Registrant's principal auditors.

ITEM 5. AUDIT COMMITTEE OF LISTED REGISTRANTS.

Not applicable to the Registrant.

ITEM 6. SCHEDULE OF INVESTMENTS

A schedule of investments of the Registrant is included as part of the report
to shareholders of such series under Item 1 of this Form N-CSR.

ITEM 7. DISCLOSURE OF PROXY VOTING POLICIES AND PROCEDURES FOR CLOSED-END
MANAGEMENT INVESTMENT COMPANIES.

Not applicable to the Registrant.

ITEM 8. PORTFOLIO MANAGERS OF CLOSED-END MANAGEMENT INVESTMENT COMPANIES.

Not applicable to the Registrant.

ITEM 9. PURCHASES OF EQUITY SECURITIES BY CLOSED-END MANAGEMENT INVESTMENT
COMPANY AND AFFILIATED PURCHASERS.

Not applicable to the Registrant.

ITEM 10. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS.

There were no material changes to the procedures by which shareholders may send
recommendations to the Board for nominees to the Registrant's Board since the
Registrant last provided disclosure as to such procedures in response to the
requirements of Item 7(d)(2)(ii)(G) of Schedule 14A or this Item.

ITEM 11. CONTROLS AND PROCEDURES.

(a)  Based upon their evaluation of the effectiveness of the registrant's
     disclosure controls and procedures (as defined in Rule 30a-3(c) under the
     Investment Company Act of 1940 (the "Act")) as conducted within 90 days of
     the filing date of this Form N-CSR, the registrant's principal financial
     officer and principal executive officer have concluded that those
     disclosure controls and procedures provide reasonable assurance that the
     material information required to be disclosed by the registrant on this
     report is recorded, processed, summarized and reported within the time
     periods specified in the Securities and Exchange Commission's rules and
     forms.

(b)  There were no changes in the registrant's internal controls over financial
     reporting (as defined in Rule 30a-3(d) under the Act) that occurred during
     the second fiscal quarter of the period covered by the report that have
     materially affected, or are reasonably likely to materially affect, the
     registrant's internal control over financial reporting.

ITEM 12. EXHIBITS.

(a) File the exhibits listed below as part of this Form. Letter or number the
    exhibits in the sequence indicated.

    (1) Any code of ethics, or amendment thereto, that is the subject of the
        disclosure required by Item 2, to the extent that the registrant
        intends to satisfy the Item 2 requirements through filing of an
        exhibit: Code of Ethics attached hereto.

    (2) A separate certification for each principal executive officer and
        principal financial officer of the registrant as required by Rule 30a-2
        under the Act (17 CFR 270.30a-2): Attached hereto.

(b) If the report is filed under Section 13(a) or 15(d) of the Exchange Act,
    provide the certifications required by Rule 30a-2(b) under the Act (17 CFR
    270.30a-2(b)), Rule 13a-14(b) or Rule 15d-14(b) under the Exchange Act (17
    CFR 240.13a-14(b) or 240.15d-14(b)) and Section 1350 of Chapter 63 of Title
    18 of the United States Code (18 U.S.C. 1350) as an exhibit. A
    certification furnished pursuant to this paragraph will not be deemed
    "filed" for the purposes of Section 18 of the Exchange Act (15 U.S.C. 78r),
    or otherwise subject to the liability of that section. Such certification
    will not be deemed to be incorporated by reference into any filing under
    the Securities Act of 1933 or the Exchange Act, except to the extent that
    the registrant specifically incorporates it by reference: Attached hereto.


                                     NOTICE

A copy of the Amended and Restated Declaration of Trust of the Registrant is on
file with the Secretary of State of the Commonwealth of Massachusetts and
notice is hereby given that this instrument is executed on behalf of the
Registrant by an officer of the Registrant as an officer and not individually
and the obligations of or arising out of this instrument are not binding upon
any of the Trustees or shareholders individually, but are binding only upon the
assets and property of the respective constituent series of the Registrant.


                                   SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934 and the
Investment Company Act of 1940, the registrant has duly caused this report to
be signed on its behalf by the undersigned, thereunto duly authorized.

(Registrant) MFS MUNICIPAL SERIES TRUST
             ------------------------------------------------------------------


By (Signature and Title)* MARIA F. DWYER
                          -----------------------------------------------------
                          Maria F. Dwyer, President

Date: May 23, 2006
      ------------

Pursuant to the requirements of the Securities Exchange Act of 1934 and the
Investment Company Act of 1940, this report has been signed below by the
following persons on behalf of the registrant and in the capacities and on the
dates indicated.


By (Signature and Title)* MARIA F. DWYER
                          -----------------------------------------------------
                          Maria F. Dwyer, President (Principal Executive
                          Officer)

Date: May 23, 2006
      ------------

By (Signature and Title)* TRACY ATKINSON
                          -----------------------------------------------------
                          Tracy Atkinson, Treasurer (Principal Financial Officer
                          and Accounting Officer)

Date: May 23, 2006
      ------------

* Print name and title of each signing officer under his or her signature.