<Page>

                                   FORM N-CSR

                   CERTIFIED SHAREHOLDER REPORT OF REGISTERED
                         MANAGEMENT INVESTMENT COMPANIES

Investment Company Act file number: 811-04015

                         EATON VANCE MUTUAL FUNDS TRUST
               (Exact Name of Registrant as Specified in Charter)

     THE EATON VANCE BUILDING, 255 STATE STREET, BOSTON, MASSACHUSETTS 02109
                    (Address of principal Executive Offices)

                                 Alan R. Dynner
     THE EATON VANCE BUILDING, 255 STATE STREET, BOSTON, MASSACHUSETTS 02109
                    (Name and Address of Agent for Services)

                                 (617) 482-8260
                         (Registrant's Telephone Number)

                                OCTOBER 31, 2003
                             Date of Fiscal Year End

                                 APRIL 30, 2003
                            Date of Reporting Period

<Page>

ITEM 1. REPORTS TO STOCKHOLDERS
<Page>

[EATON VANCE LOGO]

[PHOTO OF STATUE OF LIBERTY]

SEMIANNUAL REPORT APRIL 30, 2003

[PHOTO OF TAX FORM/CALCULATOR]

EATON VANCE TAX-MANAGED SMALL-CAP VALUE FUND

[PHOTO OF FLOOR STOCK EXCHANGE]


<Page>

                       IMPORTANT NOTICE REGARDING DELIVERY
                            OF SHAREHOLDER DOCUMENTS

The Securities and Exchange Commission (SEC) permits mutual funds to deliver
only one copy of shareholder documents, including prospectuses, proxy statements
and shareholder reports, to fund investors with multiple accounts at the same
residential or post office box address. This practice is often called
"householding" and it helps eliminate duplicate mailings to shareholders.

EATON VANCE, OR YOUR FINANCIAL ADVISER, MAY HOUSEHOLD THE MAILING OF YOUR
DOCUMENTS INDEFINITELY UNLESS YOU INSTRUCT EATON VANCE, OR YOUR FINANCIAL
ADVISER, OTHERWISE.

If you would prefer that your Eaton Vance documents not be householded, please
contact Eaton Vance at 1-800-262-1122, or contact your financial adviser.

Your instructions that householding not apply to delivery of your Eaton Vance
documents will be effective within 30 days of receipt by Eaton Vance or your
financial adviser.
<Page>

EATON VANCE TAX-MANAGED SMALL-CAP VALUE FUND    AS OF APRIL 30, 2003

INVESTMENT UPDATE

[PHOTO OF GEORGE PIERIDES]
George Pierides
Fox Asset Management
Portfolio Manager

INVESTMENT ENVIRONMENT

- -    The investment climate was challenging during the six-month period, as
     small-cap stocks lagged their large-cap counterparts for the third
     consecutive quarter. However, the small-cap universe showed signs of
     renewal as the period ended. The S&P SmallCap 600 Index had a total return
     of 3.54% for the six months ended April 30, 2003.(1)

- -    The recent passage of the federal tax cut could provide a measure of
     stimulus for the economy. Historically, following a period of economic
     malaise, smaller companies have been among the first to benefit from an
     accelerating economy.

THE FUND

- -    The Fund's Class A shares had a total return of 5.42% during the six months
     ended April 30, 2003.(2) This return resulted from an increase in net asset
     value (NAV) per share to $9.34 on April 30, 2003 from $8.86 on October 31,
     2002.

- -    The Fund's Class B shares had a total return of 4.99% during the six months
     ended April 30, 2003.(2) This return resulted from an increase in NAV per
     share to $9.26 on April 30, 2003 from $8.82 on October 31, 2002.

- -    The Fund's Class C shares had a total return of 4.99% during the six months
     ended April 30, 2003.(2) This return resulted from an increase in NAV per
     share to $9.26 on April 30, 2003 from $8.82 on October 31, 2002.


THE VIEWS EXPRESSED IN THIS REPORT ARE THOSE OF THE PORTFOLIO MANAGER AND ARE
CURRENT ONLY THROUGH THE END OF THE PERIOD OF THE REPORT AS STATED ON THE COVER.
THESE VIEWS ARE SUBJECT TO CHANGE AT ANY TIME BASED UPON MARKET OR OTHER
CONDITIONS, AND FOX ASSET MANAGEMENT DISCLAIMS ANY RESPONSIBILITY TO UPDATE SUCH
VIEWS. THESE VIEWS MAY NOT BE RELIED ON AS INVESTMENT ADVICE AND, BECAUSE
INVESTMENT DECISIONS ARE BASED ON MANY FACTORS, MAY NOT BE RELIED ON AS AN
INDICATION OF TRADING INTENT ON BEHALF OF ANY FUND.


MANAGEMENT DISCUSSION

- -    The Fund focuses on small-cap companies that management believes are
     inexpensive relative to the overall stock market. In addition, the Fund
     pursues a variety of tax-managed strategies designed to avoid taxable
     distributions. This tax-managed approach allows investors to participate
     more fully in the growth of small companies, while considering the tax
     events that can reduce investment returns.

- -    While the economy has awaited a convincing recovery, stock selection has
     remained of paramount importance. The Portfolio emphasized companies we
     believe have good fundamentals, strong balance sheets and relatively low
     valuation, and has sought a balance between cyclical and consumer stocks.
     The Portfolio's largest sector weightings at April 30, 2003 were energy,
     medical services and supplies, industrial products and retailing.

- -    Energy stocks played a prominent role in the Portfolio and performed
     relatively well. Natural gas companies benefited from rising gas prices,
     which were high even by seasonal standards. Prices were boosted by an
     unusually severe winter and by concerns over the availability of long-term
     gas supplies.

- -    Medical services and supplies stocks were among the Portfolio's best
     performers during the period. A prime beneficiary of advances in medical
     technology, the group has enjoyed relatively strong revenue growth, even as
     other segments of the economy have struggled with declining demand.

- -    Although consumers were increasingly beleaguered in recent months, the
     Portfolio's restaurant stocks fared unusually well. While "fast-food"
     chains have been troubled by issues of nutrition and cleanliness, other
     companies have achieved impressive revenue growth through a blend of
     attractive casual dining concepts and value-priced menus.

- -    Some of the Portfolio's cyclical holdings fared less well. Transportation
     and chemicals continued to experience subpar revenues, as demand remained
     weak amid the slow recovery.

MUTUAL FUND SHARES ARE NOT INSURED BY THE FDIC AND ARE NOT DEPOSITS OR OTHER
OBLIGATIONS OF, OR GUARANTEED BY, ANY DEPOSITORY INSTITUTION. SHARES ARE SUBJECT
TO INVESTMENT RISKS, INCLUDING POSSIBLE LOSS OF PRINCIPAL INVESTED.

FUND INFORMATION
as of April 30, 2003

<Table>
<Caption>

PERFORMANCE(3)             CLASS A    CLASS B    CLASS C
- ----------------------------------------------------------------------------
                                        
Average Annual Total Returns (at net asset value)
One Year                    -14.00%    -14.65%    -14.65%
Life of Fund+                -5.67      -6.36      -6.36

SEC Average Annual Total Returns (including sales charge or applicable CDSC)
One Year                    -18.92%    -18.92%    -15.51%
Life of Fund+               -10.32     -10.38      -6.36
</Table>

+ Inception dates: Class A: 3/4/02; Class B: 3/4/02; Class C: 3/4/02


TEN LARGEST HOLDINGS(4) By total net assets

<Table>
                                    
Church & Dwight Co., Inc.              3.7%
Teleflex, Inc.                         3.5
Arkansas Best Corp.                    3.4
Lafarge North America, Inc.            3.2
BorgWarner, Inc.                       3.2
AptarGroup, Inc.                       3.2
Protective Life Corp.                  3.0
RPM, Inc.                              2.9
INAMED Corp.                           2.8
Piedmont Natural Gas Co., Inc.         2.8
</Table>


(1)  It is not possible to invest directly in an Index. (2) These returns do not
     include the 5.75% maximum sales charge for the Fund's Class A shares or the
     applicable contingent deferred sales charges (CDSC) for Class B and Class C
     shares. (3) Returns are historical and are calculated by determining the
     percentage change in net asset value with all distributions reinvested. SEC
     average annual returns for Class A reflect a 5.75% sales charge; for Class
     B, returns reflect applicable CDSC based on the following schedule: 5%-1st
     and 2nd years; 4%-3rd year; 3%-4th year; 2%-5th year; 1%-6th year; for
     Class C, 1-year return reflects 1% CDSC. (4) Based on market value. Ten
     largest holdings represent 31.7% of the Portfolio's net assets. Holdings
     are subject to change.

Past performance is no guarantee of future results. Investment return and
principal value will fluctuate so that shares, when redeemed, may be worth more
or less than their original cost.

                                       2

<Page>

EATON VANCE TAX-MANAGED SMALL-CAP VALUE FUND     AS OF APRIL 30, 2003

PERFORMANCE

The tables below set forth the pre-tax and after-tax performance for the Fund.
After-tax performance reflects the impact of federal income taxes on Fund
distributions of dividends and capital gains, as well as capital gains taxes on
the sale of Fund shares, while pre-tax performance does not. Because the
objective of the Fund is to provide long-term, after-tax returns to
shareholders, it is important for investors to know the effect of taxes on the
Fund's return.

AVERAGE ANNUAL TOTAL RETURNS
(FOR THE PERIOD ENDED APRIL 30, 2003)

RETURNS AT NET ASSET VALUE (NAV) (CLASS A)
<Table>
<Caption>
                                    ONE YEAR    LIFE OF FUND
                                          
Return Before Taxes                  -14.00%     -5.67%
Return After Taxes on Distributions  -14.00%     -5.67%
Return After Taxes on Distributions   -9.10%     -4.53%
and Sale of Fund Shares
</Table>

RETURNS AT PUBLIC OFFERING PRICE (POP) (CLASS A)
<Table>
<Caption>
                                    ONE YEAR    LIFE OF FUND
                                          
Return Before Taxes                  -18.92%    -10.32%
Return After Taxes on Distributions  -18.92%    -10.32%
Return After Taxes on Distributions  -12.30%     -8.24%
and Sale of Fund Shares
</Table>


AVERAGE ANNUAL TOTAL RETURNS
(FOR THE PERIOD ENDED APRIL 30, 2003)

RETURNS AT NET ASSET VALUE (NAV) (CLASS B)
<Table>
<Caption>
                                    ONE YEAR    LIFE OF FUND
                                          
Return Before Taxes                  -14.65%     -6.36%
Return After Taxes on Distributions  -14.65%     -6.36%
Return After Taxes on Distributions   -9.52%     -5.08%
and Sale of Fund Shares
</Table>

RETURNS AT PUBLIC OFFERING PRICE (POP) (CLASS B)
<Table>
<Caption>
                                    ONE YEAR    LIFE OF FUND
                                          
Return Before Taxes                  -18.92%    -10.38%
Return After Taxes on Distributions  -18.92%    -10.38%
Return After Taxes on Distributions  -12.30%     -8.29%
and Sale of Fund Shares
</Table>

RETURNS AT NET ASSET VALUE (NAV) (CLASS C)
<Table>
<Caption>
                                    ONE YEAR    LIFE OF FUND
                                          
Return Before Taxes                  -14.65%     -6.36%
Return After Taxes on Distributions  -14.65%     -6.36%
Return After Taxes on Distributions   -9.52%     -5.08%
and Sale of Fund Shares
</Table>

RETURNS AT PUBLIC OFFERING PRICE (POP) (CLASS C)
<Table>
<Caption>
                                    ONE YEAR    LIFE OF FUND
                                          
Return Before Taxes                  -15.51%     -6.36%
Return After Taxes on Distributions  -15.51%     -6.36%
Return After Taxes on Distributions  -10.08%     -5.08%
and Sale of Fund Shares
</Table>

Class A, Class B and Class C commenced operations on 3/4/02. Returns at Public
Offering Price (POP) reflect the deduction of the maximum sales charge, while
Returns at Net Asset Value (NAV) do not.

After-tax returns are calculated using the highest historical individual federal
income tax rate and do not reflect the impact of state and local taxes. Actual
after-tax returns depend on a shareholder's tax situation and may differ from
those shown. After-tax returns are not relevant for shareholders who hold shares
in tax-deferred accounts or to shares held by non-taxable entities. Return After
Taxes on Distributions for a period may be the same as Return Before Taxes for
that period because no distributions were paid during that period or because the
taxable portion of distributions made during the period was insignificant. Also,
Return After Taxes on Distributions and Sale of Fund Shares for a period may be
greater than Return After Taxes on Distributions for the same period because of
realized losses on the sale of Fund shares.

Past performance (both before and after taxes) is no guarantee of future
results. Investment return and principal value will fluctuate so that shares,
when redeemed, may be worth more or less than their original cost.
Performance is for the stated time period only; due to market volatility, the
Fund's current performance may be different.

                                       3
<Page>
EATON VANCE TAX-MANAGED SMALL-CAP VALUE FUND AS OF APRIL 30, 2003

FINANCIAL STATEMENTS (UNAUDITED)

STATEMENT OF ASSETS AND LIABILITIES

<Table>
<Caption>
AS OF APRIL 30, 2003
                                       
Assets
- -----------------------------------------------------
Investment in Tax-Managed Small-Cap
   Value Portfolio (Portfolio), at value
   (identified cost, $11,258,998)         $10,703,662
Receivable for Fund shares sold                   426
Receivable from affiliate                      78,927
- -----------------------------------------------------
TOTAL ASSETS                              $10,783,015
- -----------------------------------------------------

Liabilities
- -----------------------------------------------------
Payable for Fund shares redeemed          $     6,036
Payable to affiliate for distribution
   and service fees                             1,932
Payable to affiliate for Trustees' fees            80
Accrued expenses                               20,094
- -----------------------------------------------------
TOTAL LIABILITIES                         $    28,142
- -----------------------------------------------------
NET ASSETS                                $10,754,873
- -----------------------------------------------------

Sources of Net Assets
- -----------------------------------------------------
Paid-in capital                           $11,540,876
Accumulated net realized loss from
   Portfolio (computed on the basis of
   identified cost)                          (186,094)
Accumulated net investment loss               (44,573)
Net unrealized depreciation from
   Portfolio (computed on the basis of
   identified cost)                          (555,336)
- -----------------------------------------------------
TOTAL                                     $10,754,873
- -----------------------------------------------------

Class A Shares
- -----------------------------------------------------
NET ASSETS                                $ 4,427,968
SHARES OUTSTANDING                            474,308
NET ASSET VALUE AND REDEMPTION PRICE PER
   SHARE
   (net assets  DIVIDED BY shares of
      beneficial interest outstanding)    $      9.34
MAXIMUM OFFERING PRICE PER SHARE
   (100  DIVIDED BY 94.25 of $9.34)       $      9.91
- -----------------------------------------------------
Class B Shares
- -----------------------------------------------------
NET ASSETS                                $ 3,625,214
SHARES OUTSTANDING                            391,453
NET ASSET VALUE, OFFERING PRICE AND
   REDEMPTION PRICE PER SHARE
   (net assets  DIVIDED BY shares of
      beneficial interest outstanding)    $      9.26
- -----------------------------------------------------
Class C Shares
- -----------------------------------------------------
NET ASSETS                                $ 2,701,691
SHARES OUTSTANDING                            291,717
NET ASSET VALUE, OFFERING PRICE AND REDEMPTION PRICE
   PER SHARE
   (net assets  DIVIDED BY shares of
      beneficial interest outstanding)    $      9.26
- -----------------------------------------------------
</Table>

 On sales of $50,000 or more, the offering price of Class A shares is reduced.

STATEMENT OF OPERATIONS

<Table>
<Caption>
FOR THE SIX MONTHS ENDED
APRIL 30, 2003
                                       
Investment Income
- ---------------------------------------------------
Dividends allocated from Portfolio        $  53,535
Interest allocated from Portfolio             2,093
Expenses allocated from Portfolio           (56,458)
- ---------------------------------------------------
NET INVESTMENT LOSS FROM PORTFOLIO        $    (830)
- ---------------------------------------------------

Expenses
- ---------------------------------------------------
Administration fee                        $   6,871
Trustees' fees and expenses                       8
Distribution and service fees
   Class A                                    4,796
   Class B                                   15,140
   Class C                                   11,139
Registration fees                            55,628
Transfer and dividend disbursing agent
   fees                                      10,803
Custodian fee                                 8,769
Legal and accounting services                 5,183
Printing and postage                          2,020
Miscellaneous                                 2,313
- ---------------------------------------------------
TOTAL EXPENSES                            $ 122,670
- ---------------------------------------------------
Deduct --
   Preliminary allocation of expenses to
      affiliate                           $  78,927
- ---------------------------------------------------
TOTAL EXPENSE REDUCTIONS                  $  78,927
- ---------------------------------------------------

NET EXPENSES                              $  43,743
- ---------------------------------------------------

NET INVESTMENT LOSS                       $ (44,573)
- ---------------------------------------------------

Realized and Unrealized Gain (Loss) from Portfolio
- ---------------------------------------------------
Net realized gain (loss) --
   Investment transactions (identified
      cost basis)                         $(146,386)
- ---------------------------------------------------
NET REALIZED LOSS                         $(146,386)
- ---------------------------------------------------
Change in unrealized appreciation
   (depreciation) --
   Investments (identified cost basis)    $ 633,372
- ---------------------------------------------------
NET CHANGE IN UNREALIZED APPRECIATION
   (DEPRECIATION)                         $ 633,372
- ---------------------------------------------------

NET REALIZED AND UNREALIZED GAIN          $ 486,986
- ---------------------------------------------------

NET INCREASE IN NET ASSETS FROM
   OPERATIONS                             $ 442,413
- ---------------------------------------------------
</Table>

                       SEE NOTES TO FINANCIAL STATEMENTS

                                       4
<Page>
EATON VANCE TAX-MANAGED SMALL-CAP VALUE FUND AS OF APRIL 30, 2003

FINANCIAL STATEMENTS CONT'D

STATEMENTS OF CHANGES IN NET ASSETS

<Table>
<Caption>
                                          SIX MONTHS ENDED
INCREASE (DECREASE)                       APRIL 30, 2003    PERIOD ENDED
IN NET ASSETS                             (UNAUDITED)       OCTOBER 31, 2002(1)
                                                      
- -------------------------------------------------------------------------------
From operations --
   Net investment loss                    $        (44,573) $           (38,541)
   Net realized loss                              (146,386)             (39,708)
   Net change in unrealized appreciation
      (depreciation)                               633,372           (1,188,708)
- -------------------------------------------------------------------------------
NET INCREASE (DECREASE) IN NET ASSETS
   FROM OPERATIONS                        $        442,413  $        (1,266,957)
- -------------------------------------------------------------------------------
Transactions in shares of beneficial interest --
   Proceeds from sale of shares
      Class A                             $      1,707,178  $         4,205,443
      Class B                                    1,612,838            3,570,446
      Class C                                    1,060,232            2,428,136
   Cost of shares redeemed
      Class A                                     (562,507)            (633,644)
      Class B                                     (463,866)            (779,516)
      Class C                                     (332,030)            (233,293)
- -------------------------------------------------------------------------------
NET INCREASE IN NET ASSETS FROM FUND
   SHARE TRANSACTIONS                     $      3,021,845  $         8,557,572
- -------------------------------------------------------------------------------

NET INCREASE IN NET ASSETS                $      3,464,258  $         7,290,615
- -------------------------------------------------------------------------------

Net Assets
- -------------------------------------------------------------------------------
At beginning of period                    $      7,290,615  $                --
- -------------------------------------------------------------------------------
AT END OF PERIOD                          $     10,754,873  $         7,290,615
- -------------------------------------------------------------------------------

Accumulated net investment loss included in net assets
- -------------------------------------------------------------------------------
AT END OF PERIOD                          $        (44,573) $                --
- -------------------------------------------------------------------------------
</Table>

 (1)  For the period from the start of business, March 4, 2002, to October 31,
      2002.

                       SEE NOTES TO FINANCIAL STATEMENTS

                                       5
<Page>
EATON VANCE TAX-MANAGED SMALL-CAP VALUE FUND AS OF APRIL 30, 2003

FINANCIAL STATEMENTS CONT'D

FINANCIAL HIGHLIGHTS

<Table>
<Caption>
                                                    CLASS A
                                  -------------------------------------------
                                  SIX MONTHS ENDED
                                  APRIL 30, 2003      PERIOD ENDED
                                  (UNAUDITED)         OCTOBER 31, 2002(1)
                                                
- -----------------------------------------------------------------------------
Net asset value -- Beginning
   of period                          $ 8.860                 $10.000
- -----------------------------------------------------------------------------

Income (loss) from operations
- -----------------------------------------------------------------------------
Net investment loss(2)                $(0.024)                $(0.046)
Net realized and unrealized
   gain (loss)                          0.504                  (1.094)
- -----------------------------------------------------------------------------
TOTAL INCOME (LOSS) FROM
   OPERATIONS                         $ 0.480                 $(1.140)
- -----------------------------------------------------------------------------

NET ASSET VALUE -- END OF
   PERIOD                             $ 9.340                 $ 8.860
- -----------------------------------------------------------------------------

TOTAL RETURN(3)                          5.42%                 (11.40)%
- -----------------------------------------------------------------------------

Ratios/Supplemental Data+
- -----------------------------------------------------------------------------
Net assets, end of period
   (000's omitted)                    $ 4,428                 $ 3,105
Ratios (As a percentage of
   average daily net assets):
   Net expenses(4)                       1.75%(5)                1.75%(5)
   Net investment loss                  (0.55)%(5)              (0.74)%(5)
Portfolio Turnover of the
   Portfolio                               11%                      5%
- -----------------------------------------------------------------------------
+  The operating expenses of the Fund reflect an allocation of expenses to
   the Administrator. Had such action not been taken, the ratios and net
   investment loss per share would have been as follows:
Ratios (As a percentage of
   average daily net assets):
   Expenses(4)                           3.47%(5)                4.41%(5)
   Net investment loss                  (2.27)%(5)              (3.40)%(5)
Net investment loss per share         $(0.100)                $(0.211)
- -----------------------------------------------------------------------------
</Table>

 (1)  For the period from the start of business, March 4, 2002, to October 31,
      2002.
 (2)  Net investment loss per share was computed using average shares
      outstanding.
 (3)  Returns are historical and are calculated by determining the percentage
      change in net asset value with all distributions reinvested. Total
      return is not computed on an annualized basis.
 (4)  Includes the Fund's share of the Portfolio's allocated expenses.
 (5)  Annualized.

                       SEE NOTES TO FINANCIAL STATEMENTS

                                       6
<Page>
EATON VANCE TAX-MANAGED SMALL-CAP VALUE FUND AS OF APRIL 30, 2003

FINANCIAL STATEMENTS CONT'D

FINANCIAL HIGHLIGHTS

<Table>
<Caption>
                                                    CLASS B
                                  -------------------------------------------
                                  SIX MONTHS ENDED
                                  APRIL 30, 2003      PERIOD ENDED
                                  (UNAUDITED)         OCTOBER 31, 2002(1)
                                                
- -----------------------------------------------------------------------------
Net asset value -- Beginning
   of period                          $ 8.820                 $10.000
- -----------------------------------------------------------------------------

Income (loss) from operations
- -----------------------------------------------------------------------------
Net investment loss(2)                $(0.056)                $(0.091)
Net realized and unrealized
   gain (loss)                          0.496                  (1.089)
- -----------------------------------------------------------------------------
TOTAL INCOME (LOSS) FROM
   OPERATIONS                         $ 0.440                 $(1.180)
- -----------------------------------------------------------------------------

NET ASSET VALUE -- END OF
   PERIOD                             $ 9.260                 $ 8.820
- -----------------------------------------------------------------------------

TOTAL RETURN(3)                          4.99%                 (11.80)%
- -----------------------------------------------------------------------------

Ratios/Supplemental Data+
- -----------------------------------------------------------------------------
Net assets, end of period
   (000's omitted)                    $ 3,625                 $ 2,323
Ratios (As a percentage of
   average daily net assets):
   Net expenses(4)                       2.50%(5)                2.50%(5)
   Net investment loss                  (1.28)%(5)              (1.47)%(5)
Portfolio Turnover of the
   Portfolio                               11%                      5%
- -----------------------------------------------------------------------------
+  The operating expenses of the Fund reflect an allocation of expenses to
   the Administrator. Had such action not been taken, the ratios and net
   investment loss per share would have been as follows:
Ratios (As a percentage of
   average daily net assets):
   Expenses(4)                           4.22%(5)                5.16%(5)
   Net investment loss                  (3.00)%(5)              (4.13)%(5)
Net investment loss per share         $(0.132)                $(0.256)
- -----------------------------------------------------------------------------
</Table>

 (1)  For the period from the start of business, March 4, 2002, to October 31,
      2002.
 (2)  Net investment loss per share was computed using average shares
      outstanding.
 (3)  Returns are historical and are calculated by determining the percentage
      change in net asset value with all distributions reinvested. Total
      return is not computed on an annualized basis.
 (4)  Includes the Fund's share of the Portfolio's allocated expenses.
 (5)  Annualized.

                       SEE NOTES TO FINANCIAL STATEMENTS

                                       7
<Page>
EATON VANCE TAX-MANAGED SMALL-CAP VALUE FUND AS OF APRIL 30, 2003

FINANCIAL STATEMENTS CONT'D

FINANCIAL HIGHLIGHTS

<Table>
<Caption>
                                                    CLASS C
                                  -------------------------------------------
                                  SIX MONTHS ENDED
                                  APRIL 30, 2003      PERIOD ENDED
                                  (UNAUDITED)         OCTOBER 31, 2002(1)
                                                
- -----------------------------------------------------------------------------
Net asset value -- Beginning
   of period                          $ 8.820                 $10.000
- -----------------------------------------------------------------------------

Income (loss) from operations
- -----------------------------------------------------------------------------
Net investment loss(2)                $(0.056)                $(0.092)
Net realized and unrealized
   gain (loss)                          0.496                  (1.088)
- -----------------------------------------------------------------------------
TOTAL INCOME (LOSS) FROM
   OPERATIONS                         $ 0.440                 $(1.180)
- -----------------------------------------------------------------------------

NET ASSET VALUE -- END OF
   PERIOD                             $ 9.260                 $ 8.820
- -----------------------------------------------------------------------------

TOTAL RETURN(3)                          4.99%                 (11.80)%
- -----------------------------------------------------------------------------

Ratios/Supplemental Data+
- -----------------------------------------------------------------------------
Net assets, end of period
   (000's omitted)                    $ 2,702                 $ 1,862
Ratios (As a percentage of
   average daily net assets):
   Net expenses(4)                       2.50%(5)                2.50%(5)
   Net investment loss                  (1.29)%(5)              (1.48)%(5)
Portfolio Turnover of the
   Portfolio                               11%                      5%
- -----------------------------------------------------------------------------
+  The operating expenses of the Fund reflect an allocation of expenses to
   the Administrator. Had such action not been taken, the ratios and net
   investment loss per share would have been as follows:
Ratios (As a percentage of
   average daily net assets):
   Expenses(4)                           4.22%(5)                5.16%(5)
   Net investment loss                  (3.01)%(5)              (4.15)%(5)
Net investment loss per share         $(0.131)                $(0.258)
- -----------------------------------------------------------------------------
</Table>

 (1)  For the period from the start of business, March 4, 2002, to October 31,
      2002.
 (2)  Net investment loss per share was computed using average shares
      outstanding.
 (3)  Returns are historical and are calculated by determining the percentage
      change in net asset value with all distributions reinvested. Total
      return is not computed on an annualized basis.
 (4)  Includes the Fund's share of the Portfolio's allocated expenses.
 (5)  Annualized.

                       SEE NOTES TO FINANCIAL STATEMENTS

                                       8
<Page>
EATON VANCE TAX-MANAGED SMALL-CAP VALUE FUND AS OF APRIL 30, 2003

NOTES TO FINANCIAL STATEMENTS (UNAUDITED)

1 Significant Accounting Policies
- -------------------------------------------
   Eaton Vance Tax-Managed Small-Cap Value Fund (the Fund) is a diversified
   series of Eaton Vance Mutual Funds Trust (the Trust). The Trust is an entity
   of the type commonly known as a Massachusetts business trust and is
   registered under the Investment Company Act of 1940, as amended, as an
   open-end management investment company. The Fund offers three classes of
   shares. Class A shares are generally sold subject to a sales charge imposed
   at time of purchase. Class B and Class C shares are sold at net asset value
   and are generally subject to a contingent deferred sales charge (see Note 6).
   Class B shares held for eight years will automatically convert to Class A
   shares. Each class represents a pro rata interest in the Fund, but votes
   separately on class-specific matters and (as noted below) is subject to
   different expenses. Realized and unrealized gains and losses and net
   investment income and losses, other than class-specific expenses, are
   allocated daily to each class of shares based on the relative net assets of
   each class to the total net assets of the Fund. Each class of shares differs
   in its distribution plan and certain other class-specific expenses. The Fund
   invests all of its investable assets in interests of the Tax-Managed Small-
   Cap Value Portfolio (the Portfolio), a New York Trust, having the same
   investment objective as the Fund. The value of the Fund's investment in the
   Portfolio reflects the Fund's proportionate interest in the net assets of the
   Portfolio (40.2% at April 30, 2003). The performance of the Fund is directly
   affected by the performance of the Portfolio. The financial statements of the
   Portfolio, including the Portfolio of Investments, are included elsewhere in
   this report and should be read in conjunction with the Fund's financial
   statements.

   The following is a summary of significant accounting policies consistently
   followed by the Fund in the preparation of its financial statements. The
   policies are in conformity with accounting principles generally accepted in
   the United States of America.

 A Investment Valuation -- Valuation of securities by the Portfolio is discussed
   in Note 1A of the Portfolio's Notes to Financial Statements which are
   included elsewhere in this report.

 B Income -- The Fund's net investment income or loss consists of the Fund's
   pro-rata share of the net investment income or loss of the Portfolio, less
   all actual and accrued expenses of the Fund, determined in accordance with
   accounting principles generally accepted in the United States of America.

 C Expenses -- The majority of expenses of the Trust are directly identifiable
   to an individual fund. Expenses which are not readily identifiable to a
   specific fund are allocated taking into consideration, among other things,
   the nature and type of expense and the relative size of the funds.

 D Federal Taxes -- The Fund's policy is to comply with the provisions of the
   Internal Revenue Code applicable to regulated investment companies and to
   distribute to shareholders, each year, all of its net investment income, and
   any net realized capital gains. Accordingly, no provision for federal income
   or excise tax is necessary. At October 31, 2002, the Fund, for federal income
   tax purposes, had a capital loss carryover of $26,003 which will reduce the
   taxable income arising from future net realized gain on investments, if any,
   to the extent permitted by the Internal Revenue Code and thus will reduce the
   amount of distributions to shareholders which would otherwise be necessary to
   relieve the Fund of any liability for federal income or excise tax. Such loss
   carryover will expire on October 31, 2010.

 E Other -- Investment transactions are accounted for on a trade-date basis.
   Dividends to shareholders are recorded on the ex-dividend date.

 F Use of Estimates -- The preparation of the financial statements in conformity
   with accounting principles generally accepted in the United States of America
   requires management to make estimates and assumptions that affect the
   reported amounts of assets and liabilities at the date of the financial
   statements and the reported amounts of income and expense during the
   reporting period. Actual results could differ from those estimates.

 G Interim Financial Statements -- The interim financial statements relating to
   April 30, 2003 and for the six months then ended have not been audited by
   independent certified public accountants, but in the opinion of the Fund's
   management reflect all adjustments, consisting only of normal recurring
   adjustments, necessary for the fair presentation of the financial statements.

2 Distributions to Shareholders
- -------------------------------------------
   It is the present policy of the Fund to make at least one distribution
   annually (normally in December) of all or substantially all of its net
   investment income, if any, and at least one distribution annually of all or
   substantially all of its net realized capital gains, if any. Distributions
   are paid in the form of additional shares of the Fund or, at the election of
   the shareholder, in cash. Shareholders may

                                       9
<Page>
EATON VANCE TAX-MANAGED SMALL-CAP VALUE FUND AS OF APRIL 30, 2003

NOTES TO FINANCIAL STATEMENTS (UNAUDITED) CONT'D

   reinvest all distributions in additional shares of the Fund at the net asset
   value as of the close of business on the ex-dividend date. The Fund
   distinguishes between distributions on a tax basis and a financial reporting
   basis. Accounting principles generally accepted in the United States of
   America require that only distributions in excess of tax basis earnings and
   profits be reported in the financial statements as a return of capital.
   Permanent differences between book and tax accounting relating to
   distributions are reclassified to paid-in capital.

3 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 (without par
   value). Transactions in Fund shares were as follows:

<Table>
<Caption>
                                              SIX MONTHS ENDED
                                              APRIL 30, 2003    PERIOD ENDED
    CLASS A                                   (UNAUDITED)       OCTOBER 31, 2002(1)
                                                          
    -------------------------------------------------------------------------------
    Sales                                              188,092              417,251
    Redemptions                                        (64,412)             (66,623)
    -------------------------------------------------------------------------------
    NET INCREASE                                       123,680              350,628
    -------------------------------------------------------------------------------
</Table>

<Table>
<Caption>
                                              SIX MONTHS ENDED
                                              APRIL 30, 2003    PERIOD ENDED
    CLASS B                                   (UNAUDITED)       OCTOBER 31, 2002(1)
                                                          
    -------------------------------------------------------------------------------
    Sales                                              180,955              351,931
    Redemptions                                        (52,915)             (88,518)
    -------------------------------------------------------------------------------
    NET INCREASE                                       128,040              263,413
    -------------------------------------------------------------------------------
</Table>

<Table>
<Caption>
                                              SIX MONTHS ENDED
                                              APRIL 30, 2003    PERIOD ENDED
    CLASS C                                   (UNAUDITED)       OCTOBER 31, 2002(1)
                                                          
    -------------------------------------------------------------------------------
    Sales                                              117,915              237,199
    Redemptions                                        (37,379)             (26,018)
    -------------------------------------------------------------------------------
    NET INCREASE                                        80,536              211,181
    -------------------------------------------------------------------------------
</Table>

 (1)  For the period from the start of business, March 4, 2002, to
      October 31, 2002.

4 Transactions with Affiliates
- -------------------------------------------
   The administration fee is earned by Eaton Vance Management (EVM) as
   compensation for managing and administering the business affairs of the Fund.
   Under the administration agreement, EVM earns a fee in the amount of 0.15%
   per annum of average daily net assets of the Fund. For the six months ended
   April 30, 2003, the administration fee amounted to $6,871. To reduce the net
   investment loss of the Fund, EVM was allocated $78,927 of the Fund's
   operating expenses for the six months ended April 30, 2003. The Portfolio has
   engaged Boston Management and Research (BMR), a subsidiary of EVM, to render
   investment advisory services. See Note 2 of the Portfolio's Notes to
   Financial Statements which are included elsewhere in this report. Effective
   August 1, 2002, EVM serves as the sub-transfer agent of the Fund and receives
   from the transfer agent an aggregate fee based upon the actual expenses
   incurred by EVM in the performance of those services. For the six months
   ended April 30, 2003, no significant amounts have been accrued or paid.

   Except for Trustees of the Fund and the Portfolio who are not members of
   EVM's or BMR's organization, officers and Trustees receive remuneration for
   their services to the Fund out of the investment adviser fee earned by BMR.
   Trustees of the Fund that are not affiliated with EVM or BMR may elect to
   defer receipt of all or a percentage of their annual fees in accordance with
   the terms of the Trustees Deferred Compensation Plan. For the six months
   ended April 30, 2003, no significant amounts have been deferred.

   Eaton Vance Distributors, Inc. (EVD), a subsidiary of EVM and the Fund's
   principal underwriter, received $2,524 as its portion of the sales charge on
   sales of Class A shares for the six months ended April 30, 2003.

   Certain officers and Trustees of the Fund and of the Portfolio are officers
   of the above organizations.

5 Distribution and Service Plans
- -------------------------------------------
   The Fund has in effect distribution plans for Class B shares (Class B Plan),
   and Class C shares (Class C Plan), pursuant to Rule 12b-1 under the
   Investment Company Act of 1940 and a service plan for Class A shares
   (Class A Plan) (collectively, the Plans). The Class B and Class C Plans
   require the Fund to pay EVD amounts equal to 1/365 of 0.75% of the Fund's
   average daily net assets attributable to Class B and Class C shares, for
   providing ongoing distribution services and facilities to the Fund. The Fund
   will automatically discontinue payments to EVD during any period in which
   there are no outstanding Uncovered Distribution Charges, which are equivalent
   to the sum of (i) 6.25% of the aggregate amount received by the Fund for the
   Class B and Class C shares sold, plus (ii) interest calculated by applying
   the rate of 1% over the prevailing prime rate to the outstanding balance of
   Uncovered Distribution Charges of EVD, of each respective class, reduced by
   the aggregate amount of contingent deferred

                                       10
<Page>
EATON VANCE TAX-MANAGED SMALL-CAP VALUE FUND AS OF APRIL 30, 2003

NOTES TO FINANCIAL STATEMENTS (UNAUDITED) CONT'D

   sales charges (see Note 6) and daily amounts theretofore paid to EVD by each
   respective class. The Fund paid or accrued $11,355 and $8,354 for Class B and
   Class C shares, respectively, to or payable to EVD for the six months ended
   April 30, 2003, representing 0.75% (annualized) of the average daily net
   assets for Class B and Class C shares, respectively. At April 30, 2003, the
   amount of Uncovered Distribution Charges of EVD calculated under the Plans
   was approximately $169,000 and $140,000 for Class B and Class C shares,
   respectively.

   The Plans authorize the Fund to make payments of service fees to EVD,
   investment dealers and other persons in amounts equal to 0.25% (annualized)
   of the Fund's average daily net assets attributable to Class A, Class B and
   Class C shares for each fiscal year. Service fee payments are made for
   personal services and/or the maintenance of shareholder accounts. Service
   fees are separate and distinct from the sales commissions and distribution
   fees payable by the Fund to EVD and, as such, are not subject to automatic
   discontinuance when there are no outstanding Uncovered Distribution Charges
   of EVD. Service fees for the six months ended April 30, 2003 amounted to
   $4,796, $3,785, and $2,785 for Class A, Class B and Class C shares,
   respectively.

6 Contingent Deferred Sales Charge
- -------------------------------------------
   A contingent deferred sales charge (CDSC) generally is imposed on redemptions
   of Class B shares made within six years of purchase and on redemptions of
   Class C shares made within one year of purchase. Generally, the CDSC is based
   upon the lower of the net asset value at date of redemption or date of
   purchase. No charge is levied on shares acquired by reinvestment of dividends
   or capital gain distributions. Class A shares may be subject to a 1% CDSC if
   redeemed within one year of purchase (depending upon the circumstances of
   purchase). The Class B CDSC is imposed at declining rates that begin at 5% in
   the case of redemptions in the first and second year after purchase,
   declining one percentage point each subsequent year. Class C shares will be
   subject to a 1% CDSC if redeemed within one year of purchase.

   No CDSC is levied on shares which have been sold to EVM or its affiliates or
   to their respective employees or clients and may be waived under certain
   other limited conditions. CDSC pertaining to Class B and Class C redemptions
   are paid to EVD to reduce the amount of Uncovered Distribution Charges
   calculated under the Class B and Class C Plans, respectively (see Note 5).
   CDSC assessed on Class B and Class C shares when no Uncovered Distribution
   Charges exist for the respective classes will be credited to the Fund. EVD
   received approximately $100, $3,000 and $300 of CDSC paid by shareholders for
   Class A shares, Class B shares and Class C shares, respectively, for the six
   months ended April 30, 2003.

7 Investment Transactions
- -------------------------------------------
   Increases and decreases in the Fund's investment in the Portfolio aggregated
   $4,398,459 and $1,410,943, respectively, for the six months ended April 30,
   2003.

                                       11
<Page>
TAX-MANAGED SMALL-CAP VALUE PORTFOLIO AS OF APRIL 30, 2003

PORTFOLIO OF INVESTMENTS (UNAUDITED)

COMMON STOCKS -- 90.0%

<Table>
<Caption>
SECURITY                                  SHARES   VALUE
                                             
- --------------------------------------------------------------
Auto Related -- 3.9%
- --------------------------------------------------------------
BorgWarner, Inc.                           14,500  $   850,715
Superior Industries International, Inc.     5,000      194,150
- --------------------------------------------------------------
                                                   $ 1,044,865
- --------------------------------------------------------------
Cement -- 3.2%
- --------------------------------------------------------------
Lafarge North America, Inc.                27,000  $   859,950
- --------------------------------------------------------------
                                                   $   859,950
- --------------------------------------------------------------
Chemical -- 2.9%
- --------------------------------------------------------------
RPM, Inc.                                  63,000  $   778,680
- --------------------------------------------------------------
                                                   $   778,680
- --------------------------------------------------------------
Computer / Communications Related -- 5.9%
- --------------------------------------------------------------
Actel Corp.(1)                             25,000  $   495,250
International Rectifier Corp.(1)           27,000      610,740
Veeco Instruments, Inc.(1)                 29,000      466,610
- --------------------------------------------------------------
                                                   $ 1,572,600
- --------------------------------------------------------------
Construction / Engineering -- 4.0%
- --------------------------------------------------------------
Granite Construction, Inc.                 32,000  $   537,600
Insituform Technologies, Inc.(1)           33,000      526,350
- --------------------------------------------------------------
                                                   $ 1,063,950
- --------------------------------------------------------------
Electrical Equipment -- 2.3%
- --------------------------------------------------------------
Belden, Inc.                               40,000  $   475,600
Cable Design Technologies Corp.(1)         18,100      125,071
- --------------------------------------------------------------
                                                   $   600,671
- --------------------------------------------------------------
Electronics -- 3.3%
- --------------------------------------------------------------
Bel Fuse, Inc., Class B                    30,800  $   606,760
Technitrol, Inc.(1)                        18,000      284,220
- --------------------------------------------------------------
                                                   $   890,980
- --------------------------------------------------------------
Energy -- 11.3%
- --------------------------------------------------------------
Newfield Exploration Co.(1)                21,000  $   722,190
NUI Corp.                                  19,000      267,330
Piedmont Natural Gas Co., Inc.             20,000      747,200
Questar Corp.                              24,500      739,900
<Caption>
SECURITY                                  SHARES   VALUE
                                             
- --------------------------------------------------------------

Energy (continued)
- --------------------------------------------------------------
XTO Energy, Inc.                           27,333      532,993
- --------------------------------------------------------------
                                                   $ 3,009,613
- --------------------------------------------------------------
Food Wholesalers / Retailers -- 2.1%
- --------------------------------------------------------------
SUPERVALU, Inc.                            34,000  $   559,980
- --------------------------------------------------------------
                                                   $   559,980
- --------------------------------------------------------------
Household Products -- 5.6%
- --------------------------------------------------------------
Church & Dwight Co., Inc.                  31,000  $   975,570
Libbey, Inc.                               23,000      517,040
- --------------------------------------------------------------
                                                   $ 1,492,610
- --------------------------------------------------------------
Industrial Products -- 7.1%
- --------------------------------------------------------------
A.O. Smith Corp.                           23,700  $   706,734
CLARCOR, Inc.                               6,800      254,388
Teleflex, Inc.                             24,000      921,360
- --------------------------------------------------------------
                                                   $ 1,882,482
- --------------------------------------------------------------
Insurance -- 3.0%
- --------------------------------------------------------------
Protective Life Corp.                      28,000  $   804,440
- --------------------------------------------------------------
                                                   $   804,440
- --------------------------------------------------------------
Medical Services / Supplies -- 10.5%
- --------------------------------------------------------------
DENTSPLY International, Inc.               14,100  $   528,045
INAMED Corp.(1)                            20,200      753,258
MIM Corp.(1)                               62,000      453,840
PolyMedica Corp.                           18,500      689,125
West Pharmaceutical Services, Inc.         16,000      381,600
- --------------------------------------------------------------
                                                   $ 2,805,868
- --------------------------------------------------------------
Packaging -- 3.2%
- --------------------------------------------------------------
AptarGroup, Inc.                           24,500  $   843,290
- --------------------------------------------------------------
                                                   $   843,290
- --------------------------------------------------------------
Restaurant -- 5.7%
- --------------------------------------------------------------
Applebee's International, Inc.             19,000  $   520,600
CBRL Group, Inc.                           22,100      704,548
Outback Steakhouse, Inc.                    8,000      285,920
- --------------------------------------------------------------
                                                   $ 1,511,068
- --------------------------------------------------------------
</Table>

                       SEE NOTES TO FINANCIAL STATEMENTS

                                       12
<Page>
TAX-MANAGED SMALL-CAP VALUE PORTFOLIO AS OF APRIL 30, 2003

PORTFOLIO OF INVESTMENTS (UNAUDITED) CONT'D

<Table>
<Caption>
SECURITY                                  SHARES   VALUE
                                             
- --------------------------------------------------------------
Retailing -- 6.7%
- --------------------------------------------------------------
BJ's Wholesale Club, Inc.(1)               40,000  $   564,800
Claire's Stores, Inc.                      14,000      363,860
Footstar, Inc.(1)                          38,000      351,500
ShopKo Stores, Inc.(1)                     41,000      493,230
- --------------------------------------------------------------
                                                   $ 1,773,390
- --------------------------------------------------------------
Toy -- 4.4%
- --------------------------------------------------------------
JAKKS Pacific, Inc.(1)                     52,000  $   676,000
RC2 Corp.(1)                               32,000      508,160
- --------------------------------------------------------------
                                                   $ 1,184,160
- --------------------------------------------------------------
Transportation -- 4.9%
- --------------------------------------------------------------
Arkansas Best Corp.                        36,000  $   912,600
Roadway Corp.                              10,500      389,130
- --------------------------------------------------------------
                                                   $ 1,301,730
- --------------------------------------------------------------
Total Common Stocks
   (identified cost $24,665,223)                   $23,980,327
- --------------------------------------------------------------
Total Investments -- 90.0%
   (identified cost $24,665,223)                   $23,980,327
- --------------------------------------------------------------
Other Assets, Less Liabilities -- 10.0%            $ 2,678,106
- --------------------------------------------------------------
Net Assets -- 100.0%                               $26,658,433
- --------------------------------------------------------------
</Table>

 (1)  Non-income producing security.

                       SEE NOTES TO FINANCIAL STATEMENTS

                                       13
<Page>
TAX-MANAGED SMALL-CAP VALUE PORTFOLIO AS OF APRIL 30, 2003

FINANCIAL STATEMENTS (UNAUDITED)

STATEMENT OF ASSETS AND LIABILITIES

<Table>
<Caption>
AS OF APRIL 30, 2003
                                       
Assets
- -----------------------------------------------------
Investments, at value (identified cost,
   $24,665,223)                           $23,980,327
Cash                                        2,965,710
Receivable for investments sold               396,741
Dividends and interest receivable              20,973
Prepaid expenses                                   15
- -----------------------------------------------------
TOTAL ASSETS                              $27,363,766
- -----------------------------------------------------
Liabilities
- -----------------------------------------------------
Payable for investments purchased         $   686,565
Payable to affiliate for Trustees' fees           155
Accrued expenses                               18,613
- -----------------------------------------------------
TOTAL LIABILITIES                         $   705,333
- -----------------------------------------------------
NET ASSETS APPLICABLE TO INVESTORS'
   INTEREST IN PORTFOLIO                  $26,658,433
- -----------------------------------------------------
Sources of Net Assets
- -----------------------------------------------------
Net proceeds from capital contributions
   and withdrawals                        $27,343,329
Net unrealized depreciation (computed on
   the basis of identified cost)             (684,896)
- -----------------------------------------------------
TOTAL                                     $26,658,433
- -----------------------------------------------------
</Table>

STATEMENT OF OPERATIONS

<Table>
<Caption>
FOR THE SIX MONTHS ENDED
APRIL 30, 2003
                                       
Investment Income
- ----------------------------------------------------
Dividends                                 $  132,803
Interest                                       5,198
- ----------------------------------------------------
TOTAL INVESTMENT INCOME                   $  138,001
- ----------------------------------------------------

Expenses
- ----------------------------------------------------
Investment adviser fee                    $  114,019
Trustees' fees and expenses                      197
Custodian fee                                 16,415
Legal and accounting services                  9,341
Miscellaneous                                    136
- ----------------------------------------------------
TOTAL EXPENSES                            $  140,108
- ----------------------------------------------------

NET INVESTMENT LOSS                       $   (2,107)
- ----------------------------------------------------

Realized and Unrealized Gain (Loss)
- ----------------------------------------------------
Net realized gain (loss) --
   Investment transactions (identified
      cost basis)                         $ (363,851)
- ----------------------------------------------------
NET REALIZED LOSS                         $ (363,851)
- ----------------------------------------------------
Change in unrealized appreciation
   (depreciation) --
   Investments (identified cost basis)    $1,594,378
- ----------------------------------------------------
NET CHANGE IN UNREALIZED APPRECIATION
   (DEPRECIATION)                         $1,594,378
- ----------------------------------------------------

NET REALIZED AND UNREALIZED GAIN          $1,230,527
- ----------------------------------------------------

NET INCREASE IN NET ASSETS FROM
   OPERATIONS                             $1,228,420
- ----------------------------------------------------
</Table>

                       SEE NOTES TO FINANCIAL STATEMENTS

                                       14
<Page>
TAX-MANAGED SMALL-CAP VALUE PORTFOLIO AS OF APRIL 30, 2003

FINANCIAL STATEMENTS CONT'D

STATEMENTS OF CHANGES IN NET ASSETS

<Table>
<Caption>
                                          SIX MONTHS ENDED
INCREASE (DECREASE)                       APRIL 30, 2003    PERIOD ENDED
IN NET ASSETS                             (UNAUDITED)       OCTOBER 31, 2002(1)
                                                      
- -------------------------------------------------------------------------------
From operations --
   Net investment loss                    $         (2,107) $           (49,324)
   Net realized loss                              (363,851)             (67,537)
   Net change in unrealized appreciation
      (depreciation)                             1,594,378           (2,279,274)
- -------------------------------------------------------------------------------
NET INCREASE (DECREASE) IN NET ASSETS
   FROM OPERATIONS                        $      1,228,420  $        (2,396,135)
- -------------------------------------------------------------------------------
Capital transactions --
   Contributions                          $     10,208,915  $        21,692,696
   Withdrawals                                  (2,118,845)          (2,056,628)
- -------------------------------------------------------------------------------
NET INCREASE IN NET ASSETS FROM
   CAPITAL TRANSACTIONS                   $      8,090,070  $        19,636,068
- -------------------------------------------------------------------------------

NET INCREASE IN NET ASSETS                $      9,318,490  $        17,239,933
- -------------------------------------------------------------------------------

Net Assets
- -------------------------------------------------------------------------------
At beginning of period                    $     17,339,943  $           100,010
- -------------------------------------------------------------------------------
AT END OF PERIOD                          $     26,658,433  $        17,339,943
- -------------------------------------------------------------------------------
</Table>

 (1)  For the period from the start of business, March 1, 2002, to October 31,
      2002.

                       SEE NOTES TO FINANCIAL STATEMENTS

                                       15
<Page>
TAX-MANAGED SMALL-CAP VALUE PORTFOLIO AS OF APRIL 30, 2003

FINANCIAL STATEMENTS CONT'D

SUPPLEMENTARY DATA

<Table>
<Caption>
                                  SIX MONTHS ENDED
                                  APRIL 30, 2003      PERIOD ENDED
                                  (UNAUDITED)         OCTOBER 31, 2002(1)
                                                
- ----------------------------------------------------------------------------
Ratios/Supplemental Data
- ----------------------------------------------------------------------------
Ratios (As a percentage of
   average daily net assets):
   Expenses                              1.24%(2)               1.77%(2)
   Net investment loss                  (0.02)%(2)             (0.74)%(2)
Portfolio Turnover                         11%                     5%
- ----------------------------------------------------------------------------
TOTAL RETURN(3)                          5.69%                (11.41)%
Net assets, end of period
   (000's omitted)                    $26,658                $17,340
- ----------------------------------------------------------------------------
</Table>

 (1)  For the period from the start of business, March 1, 2002, to October 31,
      2002.
 (2)  Annualized.
 (3)  Total return is not computed on an annualized basis.

                       SEE NOTES TO FINANCIAL STATEMENTS

                                       16
<Page>
TAX-MANAGED SMALL-CAP VALUE PORTFOLIO AS OF APRIL 30, 2003

NOTES TO FINANCIAL STATEMENTS (UNAUDITED)

1 Significant Accounting Policies
- -------------------------------------------
   Tax-Managed Small-Cap Value Portfolio (the Portfolio) is registered under the
   Investment Company Act of 1940, as amended, as a diversified open-end
   management investment company. The Portfolio, which was organized as a trust
   under the laws of the State of New York on December 10, 2001, seeks to
   achieve long-term after-tax returns by investing in a diversified portfolio
   of value stocks of small-cap companies. The Declaration of Trust permits the
   Trustees to issue interests in the Portfolio. At April 30, 2003, the Eaton
   Vance Tax-Managed Small-Cap Value Fund held an approximate 40.2% interest in
   the Portfolio and one other investor owned an interest greater than 10% that
   equaled 59.5%. The following is a summary of significant accounting policies
   consistently followed by the Portfolio in the preparation of its financial
   statements. The policies are in conformity with accounting principles
   generally accepted in the United States of America.

 A Investment Valuation -- Marketable securities, including options, that are
   listed on foreign or U.S. securities exchanges are valued at closing sale
   prices on the exchange where such securities are principally traded.
   Marketable securities listed in the NASDAQ National Market System are valued
   at the NASDAQ official closing price. Unlisted or listed securities for which
   closing sale prices are not available are generally valued at the mean
   between the latest bid and asked prices. Futures positions on securities or
   currencies are generally valued at closing settlement prices. Short-term debt
   securities with a remaining maturity of 60 days or less are valued at
   amortized cost, which approximates fair value. Other fixed income and debt
   securities, including listed securities and securities for which price
   quotations are available, will normally be valued on the basis of valuations
   furnished by a pricing service. Investments for which valuations or market
   quotations are unavailable are valued at fair value using methods determined
   in good faith by or at the direction of the Trustees.

 B Income -- Dividend income is recorded on the ex-dividend date for dividends
   received in cash and/or securities. However, if the ex-dividend date has
   passed, certain dividends from foreign securities are recorded as the
   Portfolio is informed of the ex-dividend date. Interest income is recorded on
   the accrual basis.

 C Income Taxes -- The Portfolio is treated as a partnership for federal tax
   purposes. No provision is made by the Portfolio for federal or state taxes on
   any taxable income of the Portfolio because each investor in the Portfolio is
   ultimately responsible for the payment of any taxes on its share of taxable
   income. Since the Portfolio's investors include regulated investment
   companies that invest all or substantially all of their assets in the
   Portfolio, the Portfolio normally must satisfy the applicable source of
   income and diversification requirements (under the Internal Revenue Code) in
   order for its investors to satisfy them. The Portfolio will allocate at least
   annually among its investors each investor's distributive share of the
   Portfolio's net investment income, net realized capital gains, and any other
   items of income, gain, loss, deduction or credit.

 D Financial Futures Contract -- Upon entering a financial futures contract, the
   Portfolio is required to deposit either in cash or securities an amount
   (initial margin) equal to a certain percentage of the purchase price
   indicated in the financial futures contract. Subsequent payments are made or
   received by the Portfolio (margin maintenance) each day, dependent on daily
   fluctuations in the value of the underlying security, and are recorded for
   book purposes as unrealized gains or losses by the Portfolio. The Portfolio's
   investment in financial futures contracts is designed to hedge against
   anticipated future changes in price of current or anticipated Portfolio
   positions. Should prices move unexpectedly, the Portfolio may not achieve the
   anticipated benefits of the financial futures contracts and may realize a
   loss.

 E Put Options -- Upon the purchase of a put option by the Portfolio, the
   premium paid is recorded as an investment, the value of which is
   marked-to-market daily. When a purchased option expires, the Portfolio will
   realize a loss in the amount of the cost of the option. When the Portfolio
   enters into a closing sale transaction, the Portfolio will realize a gain or
   loss depending on whether the sales proceeds from the closing sale
   transaction are greater or less than the cost of the option. When the
   Portfolio exercises a put option, settlement is made in cash. The risk
   associated with purchasing options is limited to the premium originally paid.

 F Securities Sold Short -- The Portfolio may sell a security short if it owns
   at least an equal amount of the security sold short or another security
   convertible or exchangeable for an equal amount of the security sold short.
   Such transactions are done in anticipation of a decline in the market price
   of the securities or in order to hedge portfolio positions. The Portfolio
   will generally borrow the security sold in order to make delivery to the
   buyer. Upon executing the transaction, the Portfolio records the proceeds as
   deposits with brokers in the Statement of Assets and Liabilities and
   establishes an offsetting payable for securities sold short for the
   securities due on settlement. The proceeds

                                       17
<Page>
TAX-MANAGED SMALL-CAP VALUE PORTFOLIO AS OF APRIL 30, 2003

NOTES TO FINANCIAL STATEMENTS (UNAUDITED) CONT'D

   are retained by the broker as collateral for the short position. The
   liability is marked-to-market and the Portfolio is required to pay the
   lending broker any dividend or interest income earned while the short
   position is open. A gain or loss is recorded when the security is delivered
   to the broker. The Portfolio may recognize a loss on the transaction if the
   market value of the securities sold increases before the securities are
   delivered.

 G Foreign Currency Translation -- Investment valuations, other assets and
   liabilities initially expressed in foreign currencies are converted each
   business day into U.S. dollars based upon current exchange rates. Purchases
   and sales of foreign investment securities and income and expenses are
   converted into U.S. dollars based upon currency exchange rates prevailing on
   the respective dates of such transactions. Recognized gains or losses on
   investment transactions attributable to foreign currency exchange rates are
   recorded for financial statement purposes as net realized gains and losses on
   investments. That portion of unrealized gains and losses on investments that
   results from fluctuations in foreign currency exchange rates is not
   separately disclosed.

 H Expense Reduction -- Investors Bank & Trust Company (IBT) serves as custodian
   of the Portfolio. Pursuant to the custodian agreement, IBT receives a fee
   reduced by credits which are determined based on the average daily cash
   balances the Portfolio maintains with IBT. All significant credit balances
   used to reduce the Portfolio's custodian fees are reported as a reduction of
   expenses on the Statement of Operations.

 I Use of Estimates -- The preparation of the financial statements in conformity
   with accounting principles generally accepted in the United States of America
   requires management to make estimates and assumptions that affect the
   reported amounts of assets and liabilities at the date of the financial
   statements and the reported amounts of income and expense during the
   reporting period. Actual results could differ from those estimates.

 J Other -- Investment transactions are accounted for on a trade-date basis.

 K Interim Financial Statements -- The interim financial statements relating to
   April 30, 2003 and for the six months then ended have not been audited by
   independent certified public accountants, but in the opinion of the
   Portfolio's management reflect all adjustments, consisting only of normal
   recurring adjustments, necessary for the fair presentation of the financial
   statements.

2 Investment Adviser Fee and Other Transactions with Affiliates
- -------------------------------------------
   The investment adviser fee is earned by Boston Management and Research (BMR),
   a wholly-owned subsidiary of Eaton Vance Management (EVM), as compensation
   for management and investment advisory services rendered to the Portfolio.
   Under the advisory agreement, BMR receives a monthly advisory fee in the
   amount of 1.00% annually of average daily net assets of the Portfolio up to
   $500 million, and at reduced rates as daily net assets exceed that level. For
   the six months ended April 30, 2003, the advisory fee amounted to $114,019.
   Pursuant to a sub-advisory agreement, BMR has delegated the investment
   management of the Portfolio to Fox Asset Management LLC (Fox), a
   majority-owned subsidiary of EVM. BMR pays Fox a monthly fee for sub-advisory
   services provided to the Portfolio in the amount of 0.75% annually of average
   daily net assets up to $500 million, and at reduced rates as daily net assets
   exceed that level. Except for Trustees of the Portfolio who are not members
   of EVM's or BMR's organization, officers and Trustees receive remuneration
   for their services to the Portfolio out of the investment adviser fee.
   Trustees of the Portfolio that are not affiliated with BMR may elect to defer
   receipt of all or a percentage of their annual fees in accordance with the
   terms of the Trustees Deferred Compensation Plan. For the six months ended
   April 30, 2003, no significant amounts have been deferred.

   Certain officers and Trustees of the Portfolio are officers of the above
   organizations.

3 Investment Transactions
- -------------------------------------------
   Purchases and sales of investments, other than short-term obligations,
   aggregated $8,834,662 and $2,270,771, respectively, for the six months ended
   April 30, 2003.

4 Federal Income Tax Basis of Unrealized Appreciation (Depreciation)
- -------------------------------------------
   The cost and unrealized appreciation (depreciation) in value of the
   investments owned at April 30, 2003, as computed on a federal income tax
   basis, were as follows:

<Table>
                                           
    AGGREGATE COST                            $24,665,223
    -----------------------------------------------------
    Gross unrealized appreciation             $ 1,468,081
    Gross unrealized depreciation              (2,152,977)
    -----------------------------------------------------
    NET UNREALIZED DEPRECIATION               $  (684,896)
    -----------------------------------------------------
</Table>

                                       18
<Page>
TAX-MANAGED SMALL-CAP VALUE PORTFOLIO AS OF APRIL 30, 2003

NOTES TO FINANCIAL STATEMENTS (UNAUDITED) CONT'D

5 Financial Instruments
- -------------------------------------------
   The Portfolio may trade in financial instruments with off-balance sheet risk
   in the normal course of its investing activities to assist in managing
   exposure to various market risks. These financial instruments include written
   options, forward foreign currency exchange contracts and financial futures
   contracts and may involve, to a varying degree, elements of risk in excess of
   the amounts recognized for financial statement purposes. The notional or
   contractual amounts of these instruments represent the investment the
   Portfolio has in particular classes of financial instruments and does not
   necessarily represent the amounts potentially subject to risk. The
   measurement of the risks associated with these instruments is meaningful only
   when all related and offsetting transactions are considered. The Portfolio
   did not have any open obligations under these financial instruments at
   April 30, 2003.

6 Line of Credit
- -------------------------------------------
   The Portfolio participates with other portfolios and funds managed by BMR and
   EVM and its affiliates in a $150 million unsecured line of credit agreement
   with a group of banks. Borrowings will be made by the Portfolio solely to
   facilitate the handling of unusual and/or unanticipated short-term cash
   requirements. Interest is charged to each participating portfolio or fund
   based on its borrowings at an amount above either the Eurodollar rate or
   Federal Funds rate. In addition, a fee computed at an annual rate of 0.10% on
   the daily unused portion of the line of credit is allocated among the
   participating portfolios and funds at the end of each quarter. The Portfolio
   did not have any significant borrowings or allocated fees for the six months
   ended April 30, 2003.

                                       19
<Page>
INVESTMENT MANAGEMENT

EATON VANCE TAX-MANAGED SMALL-CAP VALUE FUND

Officers

Thomas E. Faust Jr.
President

William H. Ahern, Jr.
Vice President

Thomas J. Fetter
Vice President

Michael R. Mach
Vice President

Robert B. MacIntosh
Vice President

Duncan W. Richardson
Vice President

Walter A. Row, III
Vice President

Judith A. Saryan
Vice President

Susan M. Schiff
Vice President

James L. O'Connor
Treasurer

Alan R. Dynner
Secretary

Trustees

Jessica M. Bibliowicz

Donald R. Dwight

James B. Hawkes

Samuel L. Hayes, III

William H. Park

Norton H. Reamer

Lynn A. Stout

TAX-MANAGED SMALL-CAP VALUE PORTFOLIO

Officers

James B. Hawkes
President and Trustee

Thomas E. Faust Jr.
Vice President

George C. Pierides
Vice President and
Portfolio Manager

Michelle A. Alexander
Treasurer

Alan R. Dynner
Secretary

Trustees

Jessica M. Bibliowicz

Donald R. Dwight

Samuel L. Hayes, III

William H. Park

Norton H. Reamer

Lynn A. Stout

                                       20
<Page>

INVESTMENT ADVISER OF TAX-MANAGED SMALL-CAP VALUE PORTFOLIO
BOSTON MANAGEMENT AND RESEARCH
The Eaton Vance Building
255 State Street
Boston, Ma 02109


SUB-ADVISER OF TAX-MANAGED SMALL-CAP VALUE PORTFOLIO
FOX ASSET MANAGEMENT LLC
44 Sycamore Avenue
Little Silver, Nj 07739


ADMINISTRATOR OF EATON VANCE TAX-MANAGED SMALL-CAP VALUE FUND
EATON VANCE MANAGEMENT
The Eaton Vance Building
255 State Street
Boston, MA02109


PRINCIPAL UNDERWRITER
EATON VANCE DISTRIBUTORS, INC.
The Eaton Vance Building
255 State Street
Boston, MA 02109
(617) 482-8260


CUSTODIAN
INVESTORS BANK & TRUST COMPANY
200 Clarendon Street
Boston, MA 02116


TRANSFER AGENT
PFPC INC.
Attn: Eaton Vance Funds
P.O. Box 9653
Providence, RI 02940-9653
(800) 262-1122



                               EATON VANCE FUNDS
                             EATON VANCE MANAGEMENT
                         BOSTON MANAGEMENT AND RESEARCH
                         EATON VANCE DISTRIBUTORS, INC.

                                 PRIVACY NOTICE

The Eaton Vance organization is committed to ensuring your financial privacy.
This notice is being sent to comply with privacy regulations of the Securities
and Exchange Commission. Each of the above financial institutions has in effect
the following policy with respect to nonpublic personal information about its
customers:

- -    Only such information received from you, through application forms or
     otherwise, and information about your Eaton Vance fund transactions will be
     collected.

- -    None of such information about you (or former customers) will be disclosed
     to anyone, except as permitted by law (which includes disclosure to
     employees necessary to service your account).

- -    Policies and procedures (including physical, electronic and procedural
     safeguards) are in place that are designed to protect the confidentiality
     of such information.

For more information about Eaton Vance's privacy policies, call:1-800-262-1122



EATON VANCE TAX-MANAGED SMALL-CAP VALUE FUND
THE EATON VANCE BUILDING
255 STATE STREET
BOSTON, MA 02109

   This report must be preceded or accompanied by a current prospectus which
contains more complete information on the Fund, including its sales charges and
expenses. Please read the prospectus carefully before you invest or send money.

1300-6/03                                                               TMSCVSRC
<Page>

ITEM 2. CODE OF ETHICS

Not Required in Filing.

ITEM 3. AUDIT COMMITTEE FINANCIAL EXPERT

Not Required in Filing.

ITEM 4. PRINCIPAL ACCOUNTANT FEES AND SERVICES.

Not Required in Filing.

ITEMS 5-6. [RESERVED]

ITEM 7. DISCLOSURE OF PROXY VOTING POLICIES AND PROCEDURES FOR CLOSED-END
        MANAGEMENT INVESTMENT COMPANIES

Not Required in Filing.

ITEM 8. [RESERVED]

ITEM 9. CONTROLS AND PROCEDURES

(a) It is the conclusion of the registrant's principal executive officer and
principal financial officer that the effectiveness of the registrant's current
disclosure controls and procedures (such disclosure controls and procedures
having been evaluated within 90 days of the date of this filing) provide
reasonable assurance that the information required to be disclosed by the
registrant has been recorded, processed, summarized and reported within the time
period specified in the Commission's rules and forms and that the information
required to be disclosed by the registrant has been accumulated and communicated
to the registrant's principal executive officer and principal financial officer
in order to allow timely decisions regarding required disclosure.

(b) There have been no significant changes in the registrant's internal controls
or in other factors that could significantly affect these controls subsequent to
the date of their evaluation, including any corrective actions with regard to
significant deficiencies and material weaknesses.

ITEM 10. EXHIBITS

(a) and (b) Exhibit is attached to Filing.

(c) Exhibit is attached to Filing.

                                   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.

Eaton Vance Mutual Funds Trust

By:    /s/ Thomas E. Faust Jr.
       -----------------------
       Thomas E. Faust Jr.
       President

Date:  June 18, 2003

<Page>

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:    /s/ James L. O'Connor
       ---------------------
       James L. O'Connor
       Treasurer

Date:  June 18, 2003


By:    /s/ Thomas E. Faust Jr.
       -----------------------
       Thomas E. Faust Jr.
       President


Date:  June 18, 2003