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 811-21196
                                   811-21299

Name of Fund: WCMA Money Fund
              Master Money Trust

Fund Address: P.O. Box 9011
              Princeton, NJ 08543-9011

Name and address of agent for service: Robert C. Doll, Jr., Chief Executive
      Officer, WCMA Money Fund and Master Money Trust, 800 Scudders Mill Road,
      Plainsboro, NJ 08536. Mailing address: P.O. Box 9011, Princeton, NJ
      08543-9011

Registrant's telephone number, including area code: (609) 282-2800

Date of fiscal year end: 03/31/06

Date of reporting period: 04/01/05 - 03/31/06

Item 1 - Report to Stockholders



Annual Report
March 31, 2006

WCMA Money Fund



WCMA Money Fund

Announcement to Shareholders

On February 15, 2006, BlackRock, Inc. ("BlackRock") and Merrill Lynch & Co.,
Inc. ("Merrill Lynch") entered into an agreement to contribute Merrill Lynch's
investment management business, Merrill Lynch Investment Managers, L.P. and
certain affiliates (including Fund Asset Management, L.P. and Merrill Lynch
Investment Managers International Limited), to BlackRock to create a new
independent company that will be one of the world's largest asset management
firms with over $1 trillion in assets under management (based on combined assets
under management as of March 31, 2006). The transaction is expected to close in
the third quarter of 2006, at which time the new company will operate under the
BlackRock name. If approved by the Fund's/Trust's Board of Trustees and
Fund/Trust shareholders, the combined company that results from the transaction
is expected to become the investment adviser of the Fund/Trust.

Important Tax Information

Of the ordinary income distributions paid by WCMA Money Fund during the year
ended March 31, 2006, 10.74% was attributable to federal obligations. In
calculating the foregoing percentage, Fund expenses have been allocated on a pro
rata basis.

The law varies in each state as to whether and what percentage of dividend
income attributable to federal obligations is exempt from state income tax. We
recommend that you consult your tax adviser to determine if any portion of the
dividends you received is exempt from state income taxes.

The following information is provided with respect to the ordinary income
distributions paid by WCMA Money Fund for the fiscal year ended March 31, 2006:

- --------------------------------------------------------------------------------
                Interest-Related Dividends for Non-U.S. Residents
- --------------------------------------------------------------------------------
Month Paid:             April 2005 - December 2005 ....................  92.89%*
                        January 2006 - March 2006 .....................  84.86%*
- --------------------------------------------------------------------------------
            Qualified Short-Term Capital Gains for Non-U.S. Residents
- --------------------------------------------------------------------------------
Month Paid:             April 2005 - December 2005 ....................   0.03%*
- --------------------------------------------------------------------------------
*     Represents the portion of the taxable ordinary income dividends eligible
      for exemption from U.S. withholding tax for nonresident aliens and foreign
      corporations.

Availability of Quarterly Schedule of Investments

The Fund files its complete schedule of portfolio holdings with the Securities
and Exchange Commission ("SEC") for the first and third quarters of each fiscal
year on Form N-Q. The Fund's Forms N-Q are available on the SEC's Web site at
http://www.sec.gov. The Fund's Forms N-Q may also be reviewed and copied at the
SEC's Public Reference Room in Washington, DC. Information on the operation of
the Public Reference Room may be obtained by calling 1-800-SEC-0330.


2           WCMA MONEY FUND                         MARCH 31, 2006


A Letter From the President

Dear Shareholder

You may be aware that changes are on the horizon at Merrill Lynch Investment
Managers ("MLIM"). On February 15, 2006, Merrill Lynch announced plans to
combine the firm's investment advisory business, including MLIM, with another
highly regarded investment manager -- BlackRock, Inc. ("BlackRock").

We believe this merger of asset management strength will benefit our investors.
MLIM is a leading investment management organization with over $576 billion in
assets under management globally and 2,757 employees in 17 countries. It offers
over 100 investment strategies in vehicles ranging from mutual funds to
institutional portfolios. BlackRock is one of the largest publicly traded
investment management firms in the United States with $463.1 billion in assets
under management and 1,839 employees. It manages assets on behalf of
institutional and individual investors worldwide through a variety of equity,
fixed income, liquidity and alternative investment products.

At the completion of the transaction, which is expected in the third quarter of
this year, the resultant firm will be a top-10 investment manager worldwide with
over $1 trillion in assets under management.* The combined company will provide
a wider selection of high-quality investment solutions across a range of asset
classes and investment styles. MLIM and BlackRock possess complementary
capabilities that together create a well-rounded organization uniting some of
the finest money managers in the industry. At the same time, the firms share
similar values and beliefs -- they are focused on delivering excellence on
behalf of clients, and both make investment performance their single most
important mission. In short, the merger only reinforces our commitment to
shareholders.

Most of MLIM's investment products -- including mutual funds, separately managed
accounts, annuities and variable insurance funds -- eventually will carry the
"BlackRock" name. As a shareholder in one or more MLIM-advised mutual funds, you
will receive a proxy package in the coming weeks in connection with this
transaction. After you receive this information, should you have any questions
or concerns, do not hesitate to contact your financial advisor.

As always, we thank you for entrusting us with your investment assets, and we
look forward to continuing to serve your investment needs with even greater
strength and scale as the new BlackRock.

                                          Sincerely,


                                          /s/ Robert C. Doll, Jr.

                                          Robert C. Doll, Jr.
                                          President and Chief Investment Officer
                                          Merrill Lynch Investment Managers

*     $1.039 trillion in assets under management as of March 31, 2006.

      Data, including assets under management, are as of March 31, 2006.


            WCMA MONEY FUND                         MARCH 31, 2006             3


A Discussion With Your Fund's Portfolio Manager

      We maintained the Fund's average maturity in the 55-day to 65-day range
throughout the year, although our portfolio composition varied as we found
different sectors and asset classes to be attractive.

How did the Fund perform during the fiscal year in light of the existing market
conditions?

For the 12-month period ended March 31, 2006, WCMA Money Fund's Class 1, Class
2, Class 3 and Class 4 Shares paid shareholders net annualized dividends of
2.23%, 2.81%, 3.13% and 3.13%, respectively. For the six-month period ended
March 31, 2006, the Fund's Class 1, Class 2, Class 3 and Class 4 Shares paid
shareholders net annualized dividends of 2.77%, 3.38%, 3.71% and 3.71%,
respectively. The Fund's seven-day yields as of March 31, 2006, were 3.14% for
Class 1, 3.71% for Class 2, 4.04% for Class 3 and 4.04% for Class 4.

The average portfolio maturity of WCMA Money Fund at March 31, 2006 was 60 days
- -- also the average portfolio maturity at September 30, 2005 and March 31, 2005.

Economic growth for the first three quarters of 2005 remained firmly above 3%
before slipping to 1.7% in the final quarter of the year. The combination of
higher oil prices and Hurricanes Katrina and Rita temporarily hindered an
otherwise resilient consumer. However, the economy seemed poised to rebound
sharply in the first quarter of 2006, with most economists anticipating growth
in the 5% range. The Federal Reserve Board (the Fed) continued to raise the
federal funds target rate in 25 basis point (.25%) increments over the past
year, with the most recent hike on March 28 bringing the target rate to 4.75%.

The Treasury yield curve behaved accordingly during the period. In anticipation
of higher interest rates early in 2005, the curve was positively sloped, with
the yield on the two-year note at 3.80% and the 10-year note at 4.50% on March
31, 2005. As the Fed continually removed accommodative policy, yields on shorter
maturities rose to a greater degree than those on longer maturities and the
yield curve flattened. As of March 31, 2006, the spread between two-year and
10-year Treasury issues was a mere four basis points, with yields at 4.82% and
4.86%, respectively. Thus, any investments in the two-year sector made early in
the six-month period would have proved burdensome as short-term rates climbed to
levels exceeding the yields on those holdings. However, in preparation for
higher interest rates, the Fund went into the period with a significant
allocation to the variable rate sector. This strategy was beneficial as the
coupons on these variable instruments were continually reset at higher rates in
conjunction with the rising interest rates.

How did you manage the portfolio during the period?

Throughout the period, our average duration target was consistently in the
55-day to 65-day range, although our portfolio composition varied. As the yield
curve shifted and spreads changed, different sectors and asset classes became
attractive. We were slightly more cautious early in the fiscal year, when it was
apparent that several more interest rate hikes were ahead. Along with variable
rate product, we preferred fixed rate instruments in only the six-month and
nine-month sectors. We believed those areas offered the greatest value from a
risk/reward standpoint, enabling us to capture some steepness in the front end
of the curve while limiting our interest rate exposure.

Toward the second half of 2005, a lack of floating rate note supply in the
market dictated more of a barbelled approach for the Fund. As issuance by the
government-sponsored enterprises dropped, spreads on variable rate notes,
including corporate and bank names, tightened significantly. Having little
interest at those levels, we were then forced to increase our commercial paper
and overnight positions until better buying opportunities arose. To maintain the
Fund's duration target, the balance of our investments was typically in the
12-month to 15-month sector. We were beginning to favor longer maturities than
we had earlier, feeling they offered the greatest potential for capital
appreciation. We also saw value in two-year callable issues, believing
volatility and swap spreads were at attractive levels and would trend lower once
the Fed reached neutral policy. Heading into the fourth quarter, it seemed that
higher home heating costs, when combined with already high gasoline prices,
would soften consumer demand. If this were to occur, the spread between the
federal funds rate and the two-year Treasury yield would likely invert, as the
market would anticipate the end of the monetary tightening cycle.


4           WCMA MONEY FUND                         MARCH 31, 2006


How would you characterize the portfolio's position at the close of the period?

In the early part of 2006, the employment data remained firm and inflation
seemed well contained. It would seem that the Fed's 15 interest rate hikes over
the past two years may eventually hinder consumption, as home equity borrowing
and refinancing activity has slowed. However, most recently, we have adopted a
slightly more defensive posture, with more than 35% of the portfolio's net
assets in overnight investments.

We believe the Fed is clearly poised for another quarter-point move in May, but
currently the federal funds futures contracts are pricing in only a 56% chance
for an additional move in June. We believe there is a greater risk that the Fed
will overshoot, as it often does, and raise the target interest rate too high.
If that is the case, there is little value in the very front end of the curve.
We have added some one-year fixed rate bank product with yields approaching
5.25%, feeling we are fairly compensated even in the event of two additional
interest rate hikes.

As spreads on variable rate notes have reached more attractive levels, we have
readdressed those sectors. However, we have focused exclusively on the prime and
federal funds indexes, based on our belief that they will outperform the others
over the next 12 months. We still believe the spread on the federal funds rate
to the two-year Treasury note will invert; however, the timing may be further
out than we had originally anticipated. Thus, we will look for the longer
sectors to be more fairly priced before we begin to position the Fund for a
stable-rate, low-volatility environment, which we expect by the second half of
2006.

The portfolio's composition, as a percent of net assets, at the end of March and
as of our last report to shareholders is detailed below:

- --------------------------------------------------------------------------------
                                                             3/31/06     9/30/05
- --------------------------------------------------------------------------------
Bank Notes ............................................        1.3%        3.3%
Certificates of Deposit ...............................        4.9         4.9
Certificates of Deposit--European .....................        2.1         3.1
Certificates of Deposit--Yankee* ......................       19.6        12.7
Commercial Paper ......................................       21.4        33.8
Corporate Notes .......................................       18.6         3.0
Funding Agreements ....................................        6.7         7.4
Master Notes ..........................................         --         1.0
Medium-Term Notes .....................................         --        10.2
Promissory Notes ......................................        1.3         0.7
Time Deposits .........................................        5.2          --
U.S. Government Agency Obligations--Discount Notes ....         --         0.1
U.S. Government, Agency & Instrumentality
  Obligations--Non-Discount Notes .....................       12.3        16.4
Repurchase Agreements .................................        6.2         3.1
Short-Term Securities .................................        0.2         0.6
Liabilities in Excess of Other Assets .................         --        (0.3)
Other Assets Less Liabilities .........................        0.2          --
                                                             -----------------
Total .................................................      100.0%      100.0%
                                                             =================
*     U.S. branches of foreign banks.

Richard J. Mejzak
Vice President and Portfolio Manager

April 10, 2006


            WCMA MONEY FUND                         MARCH 31, 2006             5


Disclosure of Expenses

Shareholders of this Fund may incur the following charges: (a) expenses related
to transactions, including sales charges, redemption fees and exchange fees; and
(b) operating expenses, including advisory fees, distribution fees including
12b-1 fees, and other Fund expenses. The following example (which is based on a
hypothetical investment of $1,000 invested on October 1, 2005 and held through
March 31, 2006) is intended to assist shareholders both in calculating expenses
based on an investment in the Fund and in comparing these expenses with similar
costs of investing in other mutual funds.

The first table below provides information about actual account values and
actual expenses. In order to estimate the expenses a shareholder paid during the
period covered by this report, shareholders can divide their account value by
$1,000 and then multiply the result by the number in the first line under the
heading entitled "Expenses Paid During the Period."

The second table below 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. In order to assist
shareholders in comparing the ongoing expenses of investing in this Fund and
other funds, compare the 5% hypothetical example with the 5% hypothetical
examples that appear in other funds' shareholder reports.

The expenses shown in the table are intended to highlight shareholders' ongoing
costs only and do not reflect any transactional expenses, such as sales charges,
redemption fees, or exchange fees. Therefore, the second table is useful in
comparing ongoing expenses only, and will not help shareholders determine the
relative total expenses of owning different funds. If these transactional
expenses were included, shareholder expenses would have been higher.



                                                                                                       Expenses Paid
                                                           Beginning                Ending           During the Period*
                                                         Account Value           Account Value       October 1, 2005 to
                                                        October 1, 2005         March 31, 2006         March 31, 2006
=======================================================================================================================
Actual
=======================================================================================================================
                                                                                                 
Class 1                                                    $   1,000               $1,013.70              $    7.38
- -----------------------------------------------------------------------------------------------------------------------
Class 2                                                    $   1,000               $1,016.70              $    4.42
- -----------------------------------------------------------------------------------------------------------------------
Class 3                                                    $   1,000               $1,018.30              $    2.82
- -----------------------------------------------------------------------------------------------------------------------
Class 4                                                    $   1,000               $1,018.30              $    2.82
=======================================================================================================================
Hypothetical (5% annual return before expenses)**
=======================================================================================================================
Class 1                                                    $   1,000               $1,017.57              $    7.39
- -----------------------------------------------------------------------------------------------------------------------
Class 2                                                    $   1,000               $1,020.51              $    4.43
- -----------------------------------------------------------------------------------------------------------------------
Class 3                                                    $   1,000               $1,022.11              $    2.82
- -----------------------------------------------------------------------------------------------------------------------
Class 4                                                    $   1,000               $1,022.11              $    2.82
- -----------------------------------------------------------------------------------------------------------------------


*     For each class of the Fund, expenses are equal to the annualized expense
      ratio for the class (1.47% for Class 1, .88% for Class 2, .56% for Class 3
      and .56% for Class 4), multiplied by the average account value over the
      period, multiplied by 182/365 (to reflect the one-half year period shown).
      Because the Fund is a feeder fund, the expense table example reflects the
      expenses of both the feeder fund and the master trust in which it invests.
**    Hypothetical 5% annual return before expenses is calculated by pro-rating
      the number of days in the most recent fiscal half year divided by 365.


6           WCMA MONEY FUND                         MARCH 31, 2006


Statement of Assets and Liabilities                              WCMA Money Fund


As of March 31, 2006
===================================================================================================================================
Assets
- -----------------------------------------------------------------------------------------------------------------------------------
                                                                                                              
            Investment in Master Money Trust (the "Trust"), at value
             (identified cost--$7,302,111,508) .........................................                            $ 7,295,826,390
            Prepaid expenses and other assets ..........................................                                    728,399
                                                                                                                    ---------------
            Total assets ...............................................................                              7,296,554,789
                                                                                                                    ---------------
===================================================================================================================================
Liabilities
- -----------------------------------------------------------------------------------------------------------------------------------
            Payables:
             Distributor ...............................................................      $     2,022,398
             Administrator .............................................................            1,438,444
             Other affiliates ..........................................................              123,000             3,583,842
                                                                                              ---------------
            Other liabilities ..........................................................                                        509
                                                                                                                    ---------------
            Total liabilities ..........................................................                                  3,584,351
                                                                                                                    ---------------
===================================================================================================================================
Net Assets
- -----------------------------------------------------------------------------------------------------------------------------------
            Net assets .................................................................                            $ 7,292,970,438
                                                                                                                    ===============
===================================================================================================================================
Net Assets Consist of
- -----------------------------------------------------------------------------------------------------------------------------------
            Class 1 Shares of beneficial interest, $.10 par value, unlimited number
             of shares authorized ......................................................                            $    86,194,349
            Class 2 Shares of beneficial interest, $.10 par value, unlimited number
             of shares authorized ......................................................                                254,085,883
            Class 3 Shares of beneficial interest, $.10 par value, unlimited number
             of shares authorized ......................................................                                292,401,310
            Class 4 Shares of beneficial interest, $.10 par value, unlimited number
             of shares authorized ......................................................                                 97,244,013
            Paid-in capital in excess of par ...........................................                              6,569,330,001
            Undistributed investment income--net .......................................      $       104,098
            Accumulated realized capital losses allocated from the Trust--net ..........             (104,098)
            Unrealized depreciation allocated from the Trust--net ......................           (6,285,118)
                                                                                              ---------------
            Total accumulated losses--net ..............................................                                 (6,285,118)
                                                                                                                    ---------------
            Net Assets .................................................................                            $ 7,292,970,438
                                                                                                                    ===============
===================================================================================================================================
Net Asset Value
- -----------------------------------------------------------------------------------------------------------------------------------
            Class 1--Based on net assets of $861,335,930 and 861,943,494 shares of
             beneficial interest outstanding ...........................................                            $          1.00
                                                                                                                    ===============
            Class 2--Based on net assets of $2,538,639,761 and 2,540,858,831 shares of
             beneficial interest outstanding ...........................................                            $          1.00
                                                                                                                    ===============
            Class 3--Based on net assets of $2,921,499,316 and 2,924,013,101 shares of
             beneficial interest outstanding ...........................................                            $          1.00
                                                                                                                    ===============
            Class 4--Based on net assets of $971,495,431 and 972,440,132 shares of
             beneficial interest outstanding ...........................................                            $          1.00
                                                                                                                    ===============


      See Notes to Financial Statements.


            WCMA MONEY FUND                         MARCH 31, 2006             7


Statement of Operations                                          WCMA Money Fund


For the Year Ended March 31, 2006
===================================================================================================================================
Investment Income
- -----------------------------------------------------------------------------------------------------------------------------------
                                                                                                              
            Interest from affiliates ...................................................                            $       662,119
            Net investment income allocated from the Trust:
              Interest and amortization of premium and discount earned .................                                279,214,680
              Securities lending--net ..................................................                                     29,274
              Expenses .................................................................                                (11,276,722)
                                                                                                                    ---------------
            Total income ...............................................................                                268,629,351
                                                                                                                    ---------------
===================================================================================================================================
Expenses
- -----------------------------------------------------------------------------------------------------------------------------------
            Administration fees ........................................................      $    18,896,449
            Account maintenance and distribution fees--Class 2 .........................           18,213,421
            Account maintenance and distribution fees--Class 3 .........................           11,404,594
            Account maintenance and distribution fees--Class 1 .........................            7,416,999
            Registration fees ..........................................................            5,068,064
            Account maintenance and distribution fees--Class 4 .........................            3,721,214
            Transfer agent fees--Class 3 ...............................................              342,168
            Transfer agent fees--Class 2 ...............................................              300,764
            Printing and shareholder reports ...........................................              132,844
            Transfer agent fees--Class 4 ...............................................              114,378
            Professional fees ..........................................................               97,578
            Transfer agent fees--Class 1 ...............................................               83,465
            Other ......................................................................               33,985
                                                                                              ---------------
            Total expenses before waiver ...............................................           65,825,923
            Waiver of expenses .........................................................          (18,484,292)
                                                                                              ---------------
            Total expenses after waiver ................................................                                 47,341,631
                                                                                                                    ---------------
            Investment income--net .....................................................                                221,287,720
                                                                                                                    ---------------
===================================================================================================================================
Realized & Unrealized Loss Allocated from the Trust--Net
- -----------------------------------------------------------------------------------------------------------------------------------
            Realized loss on investments--net ..........................................                                   (100,558)
            Change in unrealized depreciation on investments--net ......................                                    (75,936)
                                                                                                                    ---------------
            Total realized and unrealized loss--net ....................................                                   (176,494)
                                                                                                                    ---------------
            Net Increase in Net Assets Resulting from Operations .......................                            $   221,111,226
                                                                                                                    ===============


      See Notes to Financial Statements.


8           WCMA MONEY FUND                         MARCH 31, 2006


Statements of Changes in Net Assets                              WCMA Money Fund



                                                                                                       For the Year Ended
                                                                                                            March 31,
                                                                                              -------------------------------------
Increase (Decrease) in Net Assets:                                                                  2006                  2005
===================================================================================================================================
Operations
- -----------------------------------------------------------------------------------------------------------------------------------
                                                                                                              
            Investment income--net .....................................................      $   221,287,720       $    82,206,303
            Realized gain (loss)--net ..................................................             (100,558)              155,326
            Change in unrealized appreciation/depreciation--net ........................              (75,936)           (8,910,476)
                                                                                              -------------------------------------
            Net increase in net assets resulting from operations .......................          221,111,226            73,451,153
                                                                                              -------------------------------------
===================================================================================================================================
Dividends & Distributions to Shareholders
- -----------------------------------------------------------------------------------------------------------------------------------
            Investment income--net:
              Class 1 ..................................................................          (16,738,447)           (3,473,807)
              Class 2 ..................................................................          (75,779,223)          (25,587,530)
              Class 3 ..................................................................          (96,383,200)          (39,201,342)
              Class 4 ..................................................................          (32,282,752)          (13,943,624)
            Realized gain--net:
              Class 1 ..................................................................                 (268)              (16,303)
              Class 2 ..................................................................               (1,213)              (56,278)
              Class 3 ..................................................................               (1,542)              (61,601)
              Class 4 ..................................................................                 (517)              (21,144)
                                                                                              -------------------------------------
            Net decrease in net assets resulting from dividends and distributions to
             shareholders ..............................................................         (221,187,162)          (82,361,629)
                                                                                              -------------------------------------
===================================================================================================================================
Beneficial Interest Transactions
- -----------------------------------------------------------------------------------------------------------------------------------
            Net decrease in net assets derived from beneficial interest transactions ...         (390,953,320)         (729,160,194)
                                                                                              -------------------------------------
===================================================================================================================================
Net Assets
- -----------------------------------------------------------------------------------------------------------------------------------
            Total decrease in net assets ...............................................         (391,029,256)         (738,070,670)
            Beginning of year ..........................................................        7,683,999,694         8,422,070,364
                                                                                              -------------------------------------
            End of year* ...............................................................      $ 7,292,970,438       $ 7,683,999,694
                                                                                              =====================================
             *Undistributed investment income--net .....................................      $       104,098                    --
                                                                                              =====================================


      See Notes to Financial Statements.


            WCMA MONEY FUND                         MARCH 31, 2006             9


Financial Highlights                                             WCMA Money Fund



                                                                                                  Class 1
                                                                       ------------------------------------------------------------
                                                                                    For the Year Ended               For the Period
                                                                                         March 31,                   March 20, 2003+
The following per share data and ratios have been derived              --------------------------------------------    to March 31,
from information provided in the financial statements.                     2006            2005             2004            2003
===================================================================================================================================
Per Share Operating Performance
- -----------------------------------------------------------------------------------------------------------------------------------
                                                                                                            
            Net asset value, beginning of period ................      $      1.00     $      1.00      $      1.00     $      1.00
                                                                       ------------------------------------------------------------
            Investment income--net ..............................            .0224           .0043            .0003           .0003
            Realized and unrealized gain (loss)--net ............           (.0008)         (.0011)           .0005           .0001
                                                                       ------------------------------------------------------------
            Total from investment operations ....................            .0216           .0032            .0008           .0004
                                                                       ------------------------------------------------------------
            Less dividends and distributions:
               Investment income--net ...........................           (.0224)         (.0043)          (.0003)         (.0003)
               Realized gain--net ...............................               --*             --*          (.0001)             --
                                                                       ------------------------------------------------------------
            Total dividends and distributions ...................           (.0224)         (.0043)          (.0004)         (.0003)
                                                                       ------------------------------------------------------------
            Net asset value, end of period ......................      $      1.00     $      1.00      $      1.00     $      1.00
                                                                       ============================================================
===================================================================================================================================
Total Investment Return
- -----------------------------------------------------------------------------------------------------------------------------------
            Total investment return .............................             2.26%            .44%             .04%            .04%
                                                                       ============================================================
===================================================================================================================================
Ratios to Average Net Assets**
- -----------------------------------------------------------------------------------------------------------------------------------
            Total expenses, net of waiver and/or reimbursement ..             1.47%           1.35%            1.12%            .01%
                                                                       ============================================================
            Total expenses ......................................             1.47%           1.47%            1.49%            .01%
                                                                       ============================================================
            Total investment income and realized gain (loss)--net             2.23%            .43%             .04%            .03%
                                                                       ============================================================
===================================================================================================================================
Supplemental Data
- -----------------------------------------------------------------------------------------------------------------------------------
            Net assets, end of period (in thousands) ............      $   861,336     $   869,839      $   927,790     $        25
                                                                       ============================================================


*     Amount is less than $(.0001) per share.
**    Includes the Fund's share of the Trust's allocated expenses and/or
      investment income and realized gain (loss)--net.
+     Effective date of the Fund's registration.

      See Notes to Financial Statements.


10          WCMA MONEY FUND                         MARCH 31, 2006


Financial Highlights (continued)                                 WCMA Money Fund



                                                                                                  Class 2
                                                                       ------------------------------------------------------------
                                                                                    For the Year Ended               For the Period
                                                                                         March 31,                   March 20, 2003+
The following per share data and ratios have been derived              --------------------------------------------    to March 31,
from information provided in the financial statements.                     2006            2005             2004           2003
===================================================================================================================================
Per Share Operating Performance
- -----------------------------------------------------------------------------------------------------------------------------------
                                                                                                            
            Net asset value, beginning of period ................      $      1.00     $      1.00      $      1.00     $      1.00
                                                                       ------------------------------------------------------------
            Investment income--net ..............................            .0281           .0088            .0024           .0003
            Realized and unrealized gain (loss)--net ............           (.0008)         (.0011)           .0006           .0001
                                                                       ------------------------------------------------------------
            Total from investment operations ....................            .0273           .0077            .0030           .0004
                                                                       ------------------------------------------------------------
            Less dividends and distributions:
               Investment income--net ...........................           (.0281)         (.0088)          (.0024)         (.0003)
               Realized gain--net ...............................               --*             --*          (.0001)             --
                                                                       ------------------------------------------------------------
            Total dividends and distributions ...................           (.0281)         (.0088)          (.0025)         (.0003)
                                                                       ------------------------------------------------------------
            Net asset value, end of period ......................      $      1.00     $      1.00      $      1.00     $      1.00
                                                                       ============================================================
===================================================================================================================================
Total Investment Return
- -----------------------------------------------------------------------------------------------------------------------------------
            Total investment return .............................             2.85%            .89%             .25%            .04%
                                                                       ============================================================
===================================================================================================================================
Ratios to Average Net Assets**
- -----------------------------------------------------------------------------------------------------------------------------------
            Total expenses, net of waiver and/or reimbursement ..              .89%            .91%             .91%            .01%
                                                                       ============================================================
            Total expenses ......................................             1.15%           1.15%            1.17%            .01%
                                                                       ============================================================
            Total investment income and realized gain (loss)--net             2.80%            .87%             .24%            .03%
                                                                       ============================================================
===================================================================================================================================
Supplemental Data
- -----------------------------------------------------------------------------------------------------------------------------------
            Net assets, end of period (in thousands) ............      $ 2,538,640     $ 2,723,114      $ 3,041,555     $        25
                                                                       ============================================================


*     Amount is less than $(.0001) per share.
**    Includes the Fund's share of the Trust's allocated expenses and/or
      investment income and realized gain (loss)--net.
+     Effective date of the Fund's registration.

      See Notes to Financial Statements.


            WCMA MONEY FUND                         MARCH 31, 2006            11


Financial Highlights (continued)                                 WCMA Money Fund



                                                                                                  Class 3
                                                                       ------------------------------------------------------------
                                                                                    For the Year Ended               For the Period
                                                                                         March 31,                   March 20, 2003+
The following per share data and ratios have been derived              --------------------------------------------    to March 31,
from information provided in the financial statements.                     2006            2005             2004           2003
===================================================================================================================================
Per Share Operating Performance
- -----------------------------------------------------------------------------------------------------------------------------------
                                                                                                            
            Net asset value, beginning of period ................      $      1.00     $      1.00      $      1.00     $      1.00
                                                                       ------------------------------------------------------------
            Investment income--net ..............................            .0314           .0120            .0056           .0003
            Realized and unrealized gain (loss)--net ............           (.0008)         (.0011)           .0006           .0001
                                                                       ------------------------------------------------------------
            Total from investment operations ....................            .0306           .0109            .0062           .0004
                                                                       ------------------------------------------------------------
            Less dividends and distributions:
               Investment income--net ...........................           (.0314)         (.0120)          (.0056)         (.0003)
               Realized gain--net ...............................               --*             --*          (.0001)             --
                                                                       ------------------------------------------------------------
            Total dividends and distributions ...................           (.0314)         (.0120)          (.0057)         (.0003)
                                                                       ------------------------------------------------------------
            Net asset value, end of period ......................      $      1.00     $      1.00      $      1.00     $      1.00
                                                                       ============================================================
===================================================================================================================================
Total Investment Return
- -----------------------------------------------------------------------------------------------------------------------------------
            Total investment return .............................             3.18%           1.21%             .57%            .04%
                                                                       ============================================================
===================================================================================================================================
Ratios to Average Net Assets**
- -----------------------------------------------------------------------------------------------------------------------------------
            Total expenses, net of waiver and/or reimbursement ..              .57%            .58%             .59%            .01%
                                                                       ============================================================
            Total expenses ......................................              .85%            .85%             .87%            .01%
                                                                       ============================================================
            Total investment income and realized gain (loss)--net             3.13%           1.20%             .57%            .03%
                                                                       ============================================================
===================================================================================================================================
Supplemental Data
- -----------------------------------------------------------------------------------------------------------------------------------
            Net assets, end of period (in thousands) ............      $ 2,921,499     $ 3,032,612      $ 3,337,395     $        25
                                                                       ============================================================


*     Amount is less than $(.0001) per share.
**    Includes the Fund's share of the Trust's allocated expenses and/or
      investment income and realized gain (loss)--net.
+     Effective date of the Fund's registration.

      See Notes to Financial Statements.


12          WCMA MONEY FUND                         MARCH 31, 2006


Financial Highlights (concluded)                                 WCMA Money Fund



                                                                                                  Class 4
                                                                       ------------------------------------------------------------
                                                                                    For the Year Ended               For the Period
                                                                                         March 31,                   March 20, 2003+
The following per share data and ratios have been derived              --------------------------------------------    to March 31,
from information provided in the financial statements.                     2006            2005             2004           2003
===================================================================================================================================
Per Share Operating Performance
- -----------------------------------------------------------------------------------------------------------------------------------
                                                                                                            
            Net asset value, beginning of period ................      $      1.00     $      1.00      $      1.00     $      1.00
                                                                       ------------------------------------------------------------
            Investment income--net ..............................            .0314           .0120            .0056           .0003
            Realized and unrealized gain (loss) .................           (.0009)         (.0011)           .0005           .0001
                                                                       ------------------------------------------------------------
            Total from investment operations ....................            .0305           .0109            .0061           .0004
                                                                       ------------------------------------------------------------
            Less dividends and distributions:
               Investment income--net ...........................           (.0314)         (.0120)          (.0056)         (.0003)
               Realized gain--net ...............................               --*             --*          (.0001)             --
                                                                       ------------------------------------------------------------
            Total dividends and distributions ...................           (.0314)         (.0120)          (.0057)         (.0003)
                                                                       ------------------------------------------------------------
            Net asset value, end of period ......................      $      1.00     $      1.00      $      1.00     $      1.00
                                                                       ============================================================
===================================================================================================================================
Total Investment Return
- -----------------------------------------------------------------------------------------------------------------------------------
            Total investment return .............................             3.18%           1.21%             .57%            .04%
                                                                       ============================================================
===================================================================================================================================
Ratios to Average Net Assets**
- -----------------------------------------------------------------------------------------------------------------------------------
            Total expenses, net of waiver and/or reimbursement ..              .57%            .58%             .59%            .01%
                                                                       ============================================================
            Total expenses ......................................              .84%            .84%             .87%            .01%
                                                                       ============================================================
            Total investment income and realized gain (loss)--net             3.15%           1.22%             .57%            .03%
                                                                       ============================================================
===================================================================================================================================
Supplemental Data
- -----------------------------------------------------------------------------------------------------------------------------------
            Net assets, end of period (in thousands) ............      $   971,495     $ 1,058,434      $ 1,115,330     $        25
                                                                       ============================================================


*     Amount is less than $(.0001) per share.
**    Includes the Fund's share of the Trust's allocated expenses and/or
      investment income and realized gain (loss)--net.
+     Effective date of the Fund's registration.

      See Notes to Financial Statements.


            WCMA MONEY FUND                         MARCH 31, 2006            13


Notes to Financial Statements                                    WCMA Money Fund

1. Significant Accounting Policies:

WCMA Money Fund (the "Fund") is registered under the Investment Company Act of
1940, as amended, as a no load, diversified, open-end management investment
company. The Fund seeks to achieve its investment objective by investing all of
its assets in the Master Money Trust (the "Trust"), which has the same
investment objective and strategies as the Fund. The value of the Fund's
investment in the Trust reflects the Fund's proportionate interests in the net
assets of the Trust. The performance of the Fund is directly affected by the
performance of the Trust. The financial statements of the Trust, including the
Schedule of Investments, are included elsewhere in this report and should be
read in conjunction with the Fund's financial statements. The Fund's financial
statements are prepared in conformity with U.S. generally accepted accounting
principles, which may require the use of management accruals and estimates.
Actual results may differ from these estimates. The percentage of the Trust
owned by the Fund at March 31, 2006 was 47.9%. The Fund is divided into multiple
classes, designated Class 1, Class 2, Class 3 and Class 4. Each Class 1, Class
2, Class 3 and Class 4 Share represents interests in the same assets of the Fund
and has identical voting, dividend, liquidation and other rights and the same
terms and conditions, except that each class bears certain expenses related to
the distribution of such shares and the incremental transfer agency costs
resulting from the conversion of shares and has exclusive voting rights with
respect to matters relating to such account maintenance and distribution
expenditures. Income, expenses (other than expenses attributed to a specific
class) and realized and unrealized gains and losses are allocated daily to each
class based on its relative net assets. The following is a summary of
significant accounting policies followed by the Fund.

(a) Valuation of investments -- The Fund records its investments in the Trust at
fair value. Valuation of securities held by the Trust is discussed in Note 1(a)
of the Trust's Notes to Financial Statements, which are included elsewhere in
this report.

(b) Investment income and expenses -- The Fund records daily its proportionate
share of the Trust's income, expenses and realized and unrealized gains and
losses. In addition, the Fund accrues its own income and expenses.

(c) Income taxes -- It is the Fund's policy to comply with the requirements of
the Internal Revenue Code applicable to regulated investment companies and to
distribute substantially all of its taxable income to its shareholders.
Therefore, no federal income tax provision is required.

(d) Prepaid registration fees -- Prepaid registration fees are charged to
expense as the related shares are issued.

(e) Dividends and distributions to shareholders -- The Fund declares dividends
daily and reinvests daily such dividends (net of non-resident alien tax and
backup withholding tax withheld) in additional fund shares at net asset value.
Dividends and distributions are declared from the total of net investment income
and net realized gain or loss on investments.

(f) Investment transactions -- Investment transactions in the Trust are
accounted for on a trade date basis.

2. Transactions with Affiliates:

The Fund has entered into an Administration Agreement with Fund Asset
Management, L.P. ("FAM"). The general partner of FAM is Princeton Services, Inc.
("PSI"), a wholly-owned subsidiary of Merrill Lynch & Co., Inc. ("ML & Co."),
which is the limited partner. The Fund pays a monthly fee at an annual rate of
..25% of the Fund's average daily net assets for the performance of
administrative services (other than investment advice and related portfolio
activities) necessary for the operation of the Fund.

The Fund has adopted Distribution Plans in compliance with Rule 12b-1 under the
Investment Company Act of 1940, pursuant to which Merrill Lynch, Pierce, Fenner
& Smith Incorporated ("MLPF&S"), an affiliate of FAM, receives account
maintenance and distribution fees from the Fund. The fees are accrued daily and
paid monthly at annual rates based upon the average daily net assets of the
shares of the Fund as follows:

- --------------------------------------------------------------------------------
                                                     Account        Distribution
                                                 Maintenance Fee        Fee
- --------------------------------------------------------------------------------
Class 1 ................................               .25%             .75%
Class 2 ................................               .25%            .425%
Class 3 ................................               .25%            .125%
Class 4 ................................               .25%            .125%
- --------------------------------------------------------------------------------

The ongoing account maintenance fee compensates MLPF&S for providing account
maintenance services to shareholders. The ongoing distribution fee compensates
MLPF&S for providing shareholder and distribution related services to
shareholders. The Fund has entered into a contractual arrangement with FAM and
MLPF&S to waive and/or reimburse a portion of the Fund's fees and expenses to
ensure that the net expenses for the Fund's Class 2 Shares is .32% higher than
that of CMA Money Fund, and Class 3 and Class 4 Shares is equal to that of CMA
Money Fund. The fee/expense waiver or reimbursement includes account maintenance
and distribution fees. This arrangement has a one-year term and is renewable.
The


14          WCMA MONEY FUND                         MARCH 31, 2006


Notes to Financial Statements (continued)                        WCMA Money Fund

Distributor has voluntarily agreed to waive a portion of its distribution fees
in order to ensure that each class of shareholders receives a positive yield on
each daily dividend. For the year ended March 31, 2006, MLPF&S earned fees of
$40,756,228, of which $18,484,292 was waived.

Financial Data Services, Inc. ("FDS"), a wholly-owned subsidiary of ML & Co., is
the Fund's transfer agent. Interest is earned by the Fund from FDS based on the
difference, if any, between estimated and actual daily beneficial share
activity, which results in uninvested net proceeds from sales of Fund shares.

Certain officers and/or trustees of the Fund are officers and/or directors of
FAM, PSI, FDS, and/or ML & Co.

In February 2006, ML & Co. and BlackRock, Inc. entered into an agreement to
contribute ML & Co.'s investment management business, including FAM, to the
investment management business of BlackRock, Inc. The transaction is expected to
close in the third quarter of 2006.

3. Shares of Beneficial Interest:

Net decrease in net assets derived from beneficial interest transactions was
$390,953,320 and $729,160,194 for the years ended March 31, 2006 and March 31,
2005, respectively.

Transactions in shares of beneficial interest for each class were as follows:

- --------------------------------------------------------------------------------
Class 1 Shares for the Year                                         Dollar
Ended March 31, 2006                           Shares               Amount
- --------------------------------------------------------------------------------
Shares sold ........................       10,804,408,249      $ 10,804,408,249
Shares issued to shareholders in
  reinvestment of dividends
  and distributions ................           16,738,855            16,738,855
                                         --------------------------------------
Total issued .......................       10,821,147,104        10,821,147,104
Shares redeemed ....................      (10,829,666,981)      (10,829,666,981)
                                         --------------------------------------
Net decrease .......................           (8,519,877)     $     (8,519,877)
                                         ======================================

- --------------------------------------------------------------------------------
Class 1 Shares for the Year                                         Dollar
Ended March 31, 2005                           Shares               Amount
- --------------------------------------------------------------------------------
Shares sold ........................       10,727,013,888      $ 10,727,013,888
Shares issued to shareholders
  in reinvestment of dividends
  and distributions ................            3,489,645             3,489,645
                                         --------------------------------------
Total issued .......................       10,730,503,533        10,730,503,533
Shares redeemed ....................      (10,787,610,308)      (10,787,610,308)
                                         --------------------------------------
Net decrease .......................          (57,106,775)     $    (57,106,775)
                                         ======================================

- --------------------------------------------------------------------------------
Class 2 Shares for the Year                                         Dollar
Ended March 31, 2006                           Shares               Amount
- --------------------------------------------------------------------------------
Shares sold ........................       19,544,017,339      $ 19,544,017,339
Shares issued to shareholders in
  reinvestment of dividends
  and distributions ................           75,780,480            75,780,480
                                         --------------------------------------
Total issued .......................       19,619,797,819        19,619,797,819
Shares redeemed ....................      (19,804,243,729)      (19,804,243,729)
                                         --------------------------------------
Net decrease .......................         (184,445,910)     $   (184,445,910)
                                         ======================================

- --------------------------------------------------------------------------------
Class 2 Shares for the Year                                         Dollar
Ended March 31, 2005                           Shares               Amount
- --------------------------------------------------------------------------------
Shares sold ........................       19,076,403,931      $ 19,076,403,931
Shares issued to shareholders
  in reinvestment of dividends
  and distributions ................           25,642,525            25,642,525
                                         --------------------------------------
Total issued .......................       19,102,046,456        19,102,046,456
Shares redeemed ....................      (19,417,249,369)      (19,417,249,369)
                                         --------------------------------------
Net decrease .......................         (315,202,913)     $   (315,202,913)
                                         ======================================

- --------------------------------------------------------------------------------
Class 3 Shares for the Year                                         Dollar
Ended March 31, 2006                           Shares               Amount
- --------------------------------------------------------------------------------
Shares sold ........................       30,518,050,529      $ 30,518,050,529
Shares issued to shareholders in
  reinvestment of dividends
  and distributions ................           96,384,743            96,384,743
                                         --------------------------------------
Total issued .......................       30,614,435,272        30,614,435,272
Shares redeemed ....................      (30,725,504,542)      (30,725,504,542)
                                         --------------------------------------
Net decrease .......................         (111,069,270)     $   (111,069,270)
                                         ======================================

- --------------------------------------------------------------------------------
Class 3 Shares for the Year                                         Dollar
Ended March 31, 2005                           Shares               Amount
- --------------------------------------------------------------------------------
Shares sold ........................       29,412,629,830      $ 29,412,629,830
Shares issued to shareholders
  in reinvestment of dividends
  and distributions ................           39,261,452            39,261,452
                                         --------------------------------------
Total issued .......................       29,451,891,282        29,451,891,282
Shares redeemed ....................      (29,753,093,570)      (29,753,093,570)
                                         --------------------------------------
Net decrease .......................         (301,202,288)     $   (301,202,288)
                                         ======================================

- --------------------------------------------------------------------------------
Class 4 Shares for the Year                                         Dollar
Ended March 31, 2006                           Shares               Amount
- --------------------------------------------------------------------------------
Shares sold ........................       19,504,359,859      $ 19,504,359,859
Shares issued to shareholders in
  reinvestment of dividends
  and distributions ................           32,283,269            32,283,269
                                         --------------------------------------
Total issued .......................       19,536,643,128        19,536,643,128
Shares redeemed ....................      (19,623,561,391)      (19,623,561,391)
                                         --------------------------------------
Net decrease .......................          (86,918,263)     $    (86,918,263)
                                         ======================================


            WCMA MONEY FUND                         MARCH 31, 2006            15


Notes to Financial Statements (concluded)                        WCMA Money Fund

- --------------------------------------------------------------------------------
Class 4 Shares for the Year                                         Dollar
Ended March 31, 2005                           Shares               Amount
- --------------------------------------------------------------------------------
Shares sold ........................       19,173,357,780      $ 19,173,357,780
Shares issued to shareholders
  in reinvestment of dividends
  and distributions ................           13,964,268            13,964,268
                                         --------------------------------------
Total issued .......................       19,187,322,048        19,187,322,048
Shares redeemed ....................      (19,242,970,266)      (19,242,970,266)
                                         --------------------------------------
Net decrease .......................          (55,648,218)     $    (55,648,218)
                                         ======================================

4. Distributions to Shareholders:

The tax character of distributions paid during the fiscal years ended March 31,
2006 and March 31, 2005 was as follows:

- --------------------------------------------------------------------------------
                                                  3/31/2006          3/31/2005
- --------------------------------------------------------------------------------
Distributions paid from:
  Ordinary income ......................        $221,187,162        $ 82,359,431
  Net long-term capital gains ..........                  --               2,198
                                                --------------------------------
Total taxable distributions ............        $221,187,162        $ 82,361,629
                                                ================================

As of March 31, 2006, the components of accumulated losses on a tax basis were
as follows:

- -------------------------------------------------------------------------------
Undistributed ordinary income--net .......................         $   159,090
Undistributed long-term capital gains--net ...............                  --
                                                                   -----------
Total undistributed earnings--net ........................             159,090
Capital loss carryforward ................................                  --
Unrealized losses--net ...................................          (6,444,208)*
                                                                   -----------
Total accumulated losses--net ............................         $(6,285,118)
                                                                   ===========

*     The difference between book-basis and tax-basis net unrealized losses is
      attributable primarily to the tax deferral of losses on wash sales and the
      deferral of post-October capital losses for tax purposes.

Report of Independent Registered Public Accounting Firm          WCMA Money Fund

To the Shareholders and Board of Trustees of WCMA Money Fund:

We have audited the accompanying statement of assets and liabilities of WCMA
Money Fund 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
respective periods then ended. These financial statements and financial
highlights are the responsibility of the Fund'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 Fund
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 Fund'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. We believe that our audits provide a
reasonable basis for our opinion.

In our opinion, the financial statements and financial highlights referred to
above present fairly, in all material respects, the financial position of WCMA
Money 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 respective periods then
ended, in conformity with U.S. generally accepted accounting principles.

Deloitte & Touche LLP
Princeton, New Jersey
May 22, 2006


16          WCMA MONEY FUND                         MARCH 31, 2006



Schedule of Investments                     Master Money Trust    (in Thousands)

                               Face     Interest       Maturity
Issue                         Amount      Rate*          Date           Value
================================================================================
Bank Notes--1.3%
================================================================================
HSBC Finance, Inc.          $101,000    4.92 (a)%     12/14/2006     $   101,071
- --------------------------------------------------------------------------------
LaSalle National             100,000    4.00           4/24/2006          99,948
Bank
- --------------------------------------------------------------------------------
Total Bank Notes (Cost--$201,043).................................       201,019
================================================================================
Certificates of Deposit--4.9%
================================================================================
Wells Fargo                  500,000    4.80 (a)      12/18/2006         500,000
Bank, NA                     220,000    4.80 (a)       3/09/2007         220,000
                              20,000    4.80 (a)       3/16/2007          20,000
- --------------------------------------------------------------------------------
Total Certificates of Deposit (Cost--$740,000)....................       740,000
================================================================================
Certificates of Deposit--European--2.1%
================================================================================
BNP Paribas,                 200,000    5.20           3/30/2007         200,010
London
- --------------------------------------------------------------------------------
Barclays Bank Plc,           125,000    3.805          6/20/2006         124,667
London
- --------------------------------------------------------------------------------
Total Certificates of Deposit--European
(Cost--$325,010)..................................................       324,677
================================================================================
Certificates of Deposit--Yankee--19.6%
================================================================================
ABN AMRO Bank                248,000    4.607 (a)     12/07/2006         247,975
NV, NY
- --------------------------------------------------------------------------------
BNP Paribas, NY              130,000    4.69 (a)       6/19/2006         129,994
- --------------------------------------------------------------------------------
Banco Bilbao                 200,000    4.465 (a)     10/02/2006         199,948
Vizcaya Argentaria
SA, NY
- --------------------------------------------------------------------------------
Barclays Bank Plc,           150,000    4.78 (a)      11/03/2006         150,000
NY                           325,000    4.736 (a)     12/22/2006         324,959
- --------------------------------------------------------------------------------
Calyon, NY                   300,000    4.797 (a)      3/12/2007         299,993
- --------------------------------------------------------------------------------
Canadian Imperial             98,000    4.761 (a)      9/29/2006          97,992
Bank of                      180,000    4.828 (a)      4/16/2007         180,000
Commerce, NY
- --------------------------------------------------------------------------------
Fortis Bank, NY               93,500    3.95           4/20/2006          93,461
                              66,500    3.97           8/11/2006          66,218
- --------------------------------------------------------------------------------
HBOS Treasury                 40,000    4.48 (a)      10/06/2006          39,994
Services Plc, NY
- --------------------------------------------------------------------------------
Nordea North                 160,000    4.762 (a)     10/31/2006         159,976
America, Inc., NY
- --------------------------------------------------------------------------------
Royal Bank of                100,000    3.91           9/06/2006          99,459
Canada, NY                   100,000    4.805 (a)     11/13/2006         100,003
                             102,000    4.865 (a)     12/22/2006         101,985
- --------------------------------------------------------------------------------
Royal Bank of                 67,000    4.58 (a)       4/05/2006          67,000
Scotland, NY                  87,000    4.60 (a)      10/04/2006          86,992
                             295,000    4.695 (a)     11/16/2006         294,982
- --------------------------------------------------------------------------------
Toronto-Dominion              98,000    3.825          6/26/2006          97,723
Bank, NY                      40,000    3.95           7/24/2006          39,857
                             100,000    5.24           4/04/2007         100,005
- --------------------------------------------------------------------------------
Total Certificates of Deposit--Yankee
(Cost--$2,979,799)................................................     2,978,516
================================================================================
Commercial Paper--21.4%
================================================================================
Amstel Funding               213,902    4.77           4/28/2006         213,108
Corp.
- --------------------------------------------------------------------------------
Amsterdam                    300,000    4.64           4/12/2006         299,536
Funding Corp.
- --------------------------------------------------------------------------------
Compass                      175,000    4.74           4/24/2006         174,447
Securitization, LLC
- --------------------------------------------------------------------------------
Edison Asset                 166,860    4.60           4/05/2006         166,753
Securitization, LLC
- --------------------------------------------------------------------------------
Greyhawk                      71,250    4.64           4/11/2006          71,149
Funding, LLC                 159,500    4.76           4/25/2006         158,973
                             100,000    4.78           5/02/2006          99,575
- --------------------------------------------------------------------------------
Jupiter                      207,216    4.66           4/13/2006         206,867
Securitization Corp.
- --------------------------------------------------------------------------------
Lehman Brothers              171,000    4.79 (a)       9/01/2006         171,000
Holdings, Inc.
- --------------------------------------------------------------------------------
Morgan Stanley                76,000    4.82 (a)      11/17/2006          76,000
                              41,300    4.82 (a)      12/01/2006          41,300
- --------------------------------------------------------------------------------
Newport Funding               80,000    4.76           5/04/2006          79,640
Corp.
- --------------------------------------------------------------------------------
Old Line                      59,739    4.74           4/21/2006          59,574
Funding, LLC
- --------------------------------------------------------------------------------
Park Avenue                   25,000    4.75           4/24/2006          24,921
Receivables Co., LLC
- --------------------------------------------------------------------------------
Preferred                    101,411    4.66           4/13/2006         101,240
Receivables
Funding Corp.
- --------------------------------------------------------------------------------
Skandinaviska                142,000    4.77 (a)       1/23/2007         142,000
Enskilda Banken AB
- --------------------------------------------------------------------------------
Sheffield                    201,700    4.66           4/12/2006         201,387
Receivables Corp.            100,000    4.66           4/13/2006          99,832
- --------------------------------------------------------------------------------
Solitaire Funding,           100,000    4.61           4/21/2006          99,722
LLC
- --------------------------------------------------------------------------------
Surrey Funding                50,000    4.77           5/02/2006          49,788
Corp.
- --------------------------------------------------------------------------------
UBS Finance                  450,000    4.83           4/03/2006         449,819
Delaware, Inc.
- --------------------------------------------------------------------------------
Windmill Funding             278,000    4.64           4/12/2006         277,570
Corp.
- --------------------------------------------------------------------------------
Total Commercial Paper (Cost--$3,264,201).........................     3,264,201
================================================================================
Corporate Notes--18.6%
================================================================================
ASIF Global                   54,000    4.81 (a)       4/23/2007          54,000
Financing
- --------------------------------------------------------------------------------
American Honda                70,000    4.80 (a)      12/06/2006          70,000
Finance Corp.
- --------------------------------------------------------------------------------
Bank of Ireland               43,300    4.746 (a)      4/20/2007          43,300
- --------------------------------------------------------------------------------
Beta Finance Inc.            158,000    4.81 (a)      11/27/2006         157,995
                             217,000    4.798 (a)      3/20/2007         216,990
- --------------------------------------------------------------------------------
CC (USA) Inc.                145,000    4.775 (a)      2/20/2007         145,000
(Centauri)                   150,000    4.798 (a)      3/15/2007         149,993
- --------------------------------------------------------------------------------
Dorada Finance Inc.           75,000    4.699 (a)     11/15/2006          74,995
- --------------------------------------------------------------------------------
General Electric             163,605    4.853 (a)      4/17/2007         163,605
Capital Corp.
- --------------------------------------------------------------------------------
Goldman Sachs                202,600    4.769 (a)      4/13/2007         202,600
Group, Inc.
- --------------------------------------------------------------------------------
HSBC Finance, Inc.           109,000    4.865 (a)     10/19/2006         109,057
                              47,000    4.69 (a)      10/27/2006          47,017
- --------------------------------------------------------------------------------
JPMorgan                     139,000    4.64 (a)       5/16/2006         139,000
Securities Inc.
- --------------------------------------------------------------------------------
MetLife Funding,              50,500    4.809 (a)      4/16/2007          50,500
Inc.


            WCMA MONEY FUND                         MARCH 31, 2006            17


Schedule of Investments (continued)         Master Money Trust    (in Thousands)

                               Face     Interest       Maturity
Issue                         Amount      Rate*          Date           Value
================================================================================
Corporate Notes (concluded)
================================================================================
Mound                       $100,000    4.65 (a)%     11/08/2006     $   100,000
Financing Plc
- --------------------------------------------------------------------------------
Newcastle                     40,000    4.839 (a)      9/25/2006          40,000
CDO III, Ltd.                 60,000    4.839 (a)      3/24/2007          60,000
- --------------------------------------------------------------------------------
Northern Rock Plc             91,000    4.94 (a)       4/09/2007          91,000
- --------------------------------------------------------------------------------
Permanent                    114,000    4.658 (a)      6/12/2006         114,000
Financing (No. 8) Plc
- --------------------------------------------------------------------------------
Permanent                    120,000    4.72 (a)       3/10/2007         120,000
Financing (No. 9) Plc
- --------------------------------------------------------------------------------
Restructured Asset            60,000    4.84 (a)       5/02/2006          60,000
Securities with
Enhanced Returns,
Series 1998-MM-7-1
Trust
- --------------------------------------------------------------------------------
Sigma Finance                261,000    4.725 (a)     10/25/2006         260,985
Corp.
- --------------------------------------------------------------------------------
Stanfield Victoria            32,000    4.80 (a)       5/10/2006          31,999
Finance Ltd.                  55,500    4.82 (a)       5/15/2006          55,499
                              75,000    4.11           8/01/2006          74,638
- --------------------------------------------------------------------------------
Toyota Motor                  50,000    4.57 (a)      10/03/2006          50,000
Credit Corp.                 100,000    4.57 (a)      11/03/2006         100,000
- --------------------------------------------------------------------------------
Westpac Banking               44,000    4.90 (a)       4/11/2007          44,000
Corp.
- --------------------------------------------------------------------------------
Total Corporate Notes (Cost--$2,826,530)..........................     2,826,173
================================================================================
Funding Agreements--6.7%
================================================================================
General Electric              50,000    4.72 (a)      11/01/2006          50,000
Capital Assurance            150,000    4.72 (a)      12/01/2006         150,000
Co. (e)
- --------------------------------------------------------------------------------
ING USA Annuity               50,000    4.846 (a)      8/18/2006          50,000
and Life Insurance
Co. (e)
- --------------------------------------------------------------------------------
Jackson National              15,000    4.71 (a)       5/01/2006          15,000
Life Insurance Co. (e)
- --------------------------------------------------------------------------------
Metropolitan Life            165,000    4.73 (a)       4/03/2006         165,000
Insurance Co. (e)            100,000    4.71 (a)       2/01/2007         100,000
- --------------------------------------------------------------------------------
Monumental Life              145,000    4.775 (a)     11/16/2006         145,000
Insurance Co. (e)
- --------------------------------------------------------------------------------
New York Life                226,000    4.888 (a)      5/26/2006         226,000
Insurance Co. (e)
- --------------------------------------------------------------------------------
The Travelers                 25,000    4.69 (a)       5/01/2006          25,000
Insurance Co. (e)             25,000    4.68 (a)       9/15/2006          25,000
                              70,000    4.68 (a)       3/01/2007          70,000
- --------------------------------------------------------------------------------
Total Funding Agreements (Cost--$1,021,000).......................     1,021,000
================================================================================
Promissory Notes--1.3%
================================================================================
Goldman Sachs                200,000    4.86 (a)      10/10/2006         200,000
Group, Inc.
- --------------------------------------------------------------------------------
Total Promissory Notes (Cost--$200,000)..........................       200,000
================================================================================
Time Deposits--5.2%
================================================================================
Citibank NA                   95,386    4.844          4/03/2006          95,386
Nassau Branch
- --------------------------------------------------------------------------------
Rabobank                     700,000    4.84           4/03/2006         700,000
Nederland NV CA
- --------------------------------------------------------------------------------
Total Time Deposits (Cost--$795,386)..............................       795,386
================================================================================
U.S. Government, Agency & Instrumentality Obligations--Non-Discount--12.3%
================================================================================
Fannie Mae                    23,000    2.375          5/04/2006          22,951
                              25,000    4.00           6/29/2007          24,646
                             225,000    4.875          1/11/2008         223,820
- --------------------------------------------------------------------------------
Federal Farm                 136,000    4.73 (a)      10/19/2006         135,985
Credit Banks                  68,000    4.74 (a)       4/13/2007          67,993
                             102,000    4.50 (a)      10/05/2007         101,985
                              35,000    4.75 (a)      10/26/2007          34,999
- --------------------------------------------------------------------------------
Federal Home                  85,000    2.25           5/15/2006          84,720
Loan Bank System              11,955    3.77           8/25/2006          11,722
                              65,000    3.125 (a)      9/15/2006          64,443
                              49,500    2.75          11/15/2006          48,786
                              49,500    3.25          11/29/2006          48,902
                              25,000    3.75          11/30/2006          24,777
                              59,235    3.375         12/15/2006          58,554
                             165,000    3.80          12/29/2006         163,407
                              54,000    3.45           1/10/2007          53,317
                              50,500    4.00           6/13/2007          49,804
                              50,000    4.15           7/05/2007          49,405
                              33,750    4.25           9/14/2007          33,348
                              37,250    4.50          12/14/2007          36,880
                              30,000    4.625          2/01/2008          29,760
- --------------------------------------------------------------------------------
Freddie Mac                   27,600    2.55           5/10/2006          27,532
                              74,500    3.00          11/09/2006          73,460
                              30,000    3.75          11/15/2006          29,750
                              15,400    4.125          4/12/2007          15,245
                              50,000    4.45           9/28/2007          49,533
                              25,000    4.625         10/05/2007          24,827
                             100,000    4.705         10/11/2007          99,415
                             100,000    4.725         10/19/2007          99,437
- --------------------------------------------------------------------------------
U.S. Treasury Notes           50,000    2.50          10/31/2006          49,334
                              33,000    4.375 (d)     12/31/2007          32,737
- --------------------------------------------------------------------------------
Total U.S. Government, Agency & Instrumentality
Obligations--Non-Discount
(Cost--$1,882,744)................................................     1,871,474
================================================================================

Face
Amount                               Issue
================================================================================
Repurchase Agreements--6.2%
================================================================================
$400,000                    Barclays Capital Inc., purchased on
                            3/31/2006 to yield 4.78% to
                            4/03/2006, repurchase price
                            of $400,159, collateralized by FNMA,
                            3.125% to 5% due 7/15/2006 to
                            7/25/2008, FNMA Discount Note, due
                            7/26/2006, and Federal Home Loan
                            Bank System, 4.5% to 4.875%
                            due 8/08/2008 to 3/12/2010               $   400,000
- --------------------------------------------------------------------------------


18          WCMA MONEY FUND                         MARCH 31, 2006


Schedule of Investments (concluded)     Master Money Trust      (in Thousands)

Face
Amount                               Issue                             Value
================================================================================
Repurchase Agreements (concluded)
================================================================================
$550,000                    UBS Securities LLC, purchased on
                            3/31/2006 to yield 4.81% to
                            4/03/2006, repurchase price
                            of $550,220, collateralized by Freddie
                            Mac, 2.75% to 6.875% due
                            3/15/2008 to 1/18/2011 and
                            Resolution Funding Corp. STRIPS***,
                            due 10/15/2012 to 1/15/2019              $   550,000
- --------------------------------------------------------------------------------
Total Repurchase Agreements
(Cost--$950,000)..................................................       950,000

Beneficial
Interest
================================================================================
Short-Term Securities--0.2%
================================================================================
  29,959                    Merrill Lynch Liquidity Series, LLC
                            Money Market Series, 4.75% (b)(c)(f)          29,959
- --------------------------------------------------------------------------------
Total Short-Term Securities (Cost--$29,959).......................        29,959
- --------------------------------------------------------------------------------
Total Investments
(Cost--$15,215,672**)--99.8%......................................    15,202,405

Other Assets Less Liabilities--0.2%...............................        32,007
                                                                     -----------

Net Assets--100.0%................................................   $15,234,412
                                                                     ===========

*     Commercial Paper and certain U.S. Government, Agency and Instrumentality
      Obligations are traded on a discount basis; the interest rates shown
      reflect the discount rates paid at the time of purchase. Other securities
      bear interest at the rates shown, payable at fixed dates through maturity.
      Interest rates on variable rate securities are adjustable periodically
      based upon appropriate indexes. The interest rates shown are the rates in
      effect at March 31, 2006.
**    The cost and unrealized appreciation (depreciation) of investments as of
      March 31, 2006, as computed for federal income tax purposes, were as
      follows:

      Aggregate cost ........................................      $ 15,215,832
                                                                   ============
      Gross unrealized appreciation .........................      $         32
      Gross unrealized depreciation .........................           (13,459)
                                                                   ------------
      Net unrealized depreciation ...........................      $    (13,427)
                                                                   ============

***   Separately Traded Registered Interest and Principal of Securities.
(a)   Floating rate note.

(b)   Investments in companies considered to be an affiliate of the Trust, for
      purposes of Section 2(a)(3) of the Investment Company Act of 1940, were as
      follows:



      ------------------------------------------------------------------------------------------------
      Affiliate                                                     Net Activity       Interest Income
      ------------------------------------------------------------------------------------------------
                                                                                       
      Merrill Lynch Liquidity Series, LLC Money Market Series          $29,959               $57
      ------------------------------------------------------------------------------------------------


(c)   Security was purchased with the cash proceeds from securities loans.
(d)   Security, or a portion of security, is on loan.
(e)   Restricted securities as to resale, representing 6.7% of net assets were
      as follows:



      ----------------------------------------------------------------------------------------------------------------
      Issue                                                            Acquisition Date         Cost           Value
      ----------------------------------------------------------------------------------------------------------------
                                                                                                   
      General Electric Capital Assurance Co.:
         4.72% due 11/01/2006                                             11/01/2005        $   50,000      $   50,000
         4.72% due 12/01/2006                                             11/30/2005           150,000         150,000
      ING USA Annuity and Life Insurance Co., 4.846% due 8/18/2006         7/18/2005            50,000          50,000
      Jackson National Life Insurance Co., 4.71% due 5/01/2006             5/02/2005            15,000          15,000
      Metropolitan Life Insurance Co.:
         4.73% due 4/03/2006                                               4/01/2005           165,000         165,000
         4.71% due 2/01/2007                                               2/01/2006           100,000         100,000
      Monumental Life Insurance Co., 4.775% due 11/16/2006                11/18/2005           145,000         145,000
      New York Life Insurance Co., 4.888% due 5/26/2006                    5/27/2005           226,000         226,000
      The Travelers Insurance Co.:
         4.69% due 5/01/2006                                               5/02/2005            25,000          25,000
         4.68% due 9/15/2006                                               9/16/2005            25,000          25,000
         4.68% due 3/01/2007                                               2/28/2006            70,000          70,000
      ----------------------------------------------------------------------------------------------------------------
      Total                                                                                 $1,021,000      $1,021,000
                                                                                            ==========      ==========


(f)   Represents the current yield as of March 31, 2006.

      See Notes to Financial Statements.


            WCMA MONEY FUND                         MARCH 31, 2006            19


Statement of Assets and Liabilities                           Master Money Trust


As of March 31, 2006
===================================================================================================================================
Assets
- -----------------------------------------------------------------------------------------------------------------------------------
                                                                                                            
            Investments in unaffiliated securities, at value (including securities
             loaned of $29,066,479) (identified cost--$15,185,713,153) .....................                      $  15,172,445,722
            Investments in affiliated securities, at value (identified cost--$29,959,250) ..                             29,959,250
            Cash ...........................................................................                                    597
            Receivables:
               Interest ....................................................................  $      64,412,823
               Securities lending ..........................................................              6,716          64,419,539
                                                                                              -----------------
            Prepaid expenses ...............................................................                                 60,216
                                                                                                                  -----------------
            Total assets ...................................................................                         15,266,885,324
                                                                                                                  -----------------
===================================================================================================================================
Liabilities
- -----------------------------------------------------------------------------------------------------------------------------------
            Collateral on securities loaned, at value ......................................                             29,959,250
            Payables:
               Investment adviser ..........................................................          1,532,105
               Withdrawals .................................................................            147,991
               Other affiliates ............................................................            147,540           1,827,636
                                                                                              -----------------
            Accrued expenses ...............................................................                                686,535
                                                                                                                  -----------------
            Total liabilities ..............................................................                             32,473,421
                                                                                                                  -----------------
===================================================================================================================================
Net Assets
- -----------------------------------------------------------------------------------------------------------------------------------
            Net assets .....................................................................                      $  15,234,411,903
                                                                                                                  =================
===================================================================================================================================
Net Assets Consist of
- -----------------------------------------------------------------------------------------------------------------------------------
            Investors' capital .............................................................                      $  15,247,679,334
            Unrealized depreciation--net ...................................................                            (13,267,431)
                                                                                                                  -----------------
            Net Assets .....................................................................                      $  15,234,411,903
                                                                                                                  =================


      See Notes to Financial Statements.


20          WCMA MONEY FUND                         MARCH 31, 2006


Statement of Operations                                       Master Money Trust


For the Year Ended March 31, 2006
===================================================================================================================================
Investment Income
- -----------------------------------------------------------------------------------------------------------------------------------
                                                                                                            
            Interest and amortization of premium and discount earned .......................                      $     543,146,668
            Securities lending--net ........................................................                                 57,224
                                                                                                                  -----------------
            Total income ...................................................................                            543,203,892
                                                                                                                  -----------------
===================================================================================================================================
Expenses
- -----------------------------------------------------------------------------------------------------------------------------------
            Investment advisory fees .......................................................  $      19,257,521
            Accounting services ............................................................          1,822,518
            Custodian fees .................................................................            350,360
            Professional fees ..............................................................            134,269
            Trustees' fees and expenses ....................................................            110,594
            Pricing fees ...................................................................             47,955
            Printing and shareholder reports ...............................................              3,718
            Other ..........................................................................            209,325
                                                                                              -----------------
            Total expenses .................................................................                             21,936,260
                                                                                                                  -----------------
            Investment income--net .........................................................                            521,267,632
                                                                                                                  -----------------
===================================================================================================================================
Realized & Unrealized Gain (Loss)--Net
- -----------------------------------------------------------------------------------------------------------------------------------
            Realized loss on investments--net ..............................................                               (196,097)
            Change in unrealized depreciation on investments--net ..........................                                (38,335)
                                                                                                                  -----------------
            Total realized and unrealized loss--net ........................................                               (234,432)
                                                                                                                  -----------------
            Net Increase in Net Assets Resulting from Operations ...........................                      $     521,033,200
                                                                                                                  =================


      See Notes to Financial Statements.


            WCMA MONEY FUND                         MARCH 31, 2006            21


Statements of Changes in Net Assets                           Master Money Trust



                                                                                                        For the Year Ended
                                                                                                            March 31,
                                                                                              -------------------------------------
Increase (Decrease) in Net Assets:                                                                   2006                2005
===================================================================================================================================
Operations
- -----------------------------------------------------------------------------------------------------------------------------------
                                                                                                            
            Investment income--net .........................................................  $     521,267,632   $     275,675,984
            Realized gain (loss)--net ......................................................           (196,097)            350,251
            Change in unrealized appreciation/depreciation--net ............................            (38,335)        (19,014,309)
                                                                                              -------------------------------------
            Net increase in net assets resulting from operations ...........................        521,033,200         257,011,926
                                                                                              -------------------------------------
===================================================================================================================================
Capital Transactions
- -----------------------------------------------------------------------------------------------------------------------------------
            Proceeds from contributions ....................................................    123,778,818,394     128,134,342,599
            Fair value of withdrawals ......................................................   (124,494,343,825)   (132,249,310,652)
                                                                                              -------------------------------------
            Net decrease in net assets derived from capital transactions ...................       (715,525,431)     (4,114,968,053)
                                                                                              -------------------------------------
===================================================================================================================================
Net Assets
- -----------------------------------------------------------------------------------------------------------------------------------
            Total decrease in net assets ...................................................       (194,492,231)     (3,857,956,127)
            Beginning of year ..............................................................     15,428,904,134      19,286,860,261
                                                                                              -------------------------------------
            End of year ....................................................................  $  15,234,411,903   $  15,428,904,134
                                                                                              =====================================


      See Notes to Financial Statements.

Financial Highlights                                          Master Money Trust



                                                                               For the Year Ended                   For the Period
                                                                                    March 31,                     February 13, 2003+
The following per share data and ratios have been derived        ---------------------------------------------       to March 31,
from information provided in the financial statements.               2006             2005             2004              2003
===================================================================================================================================
Total Investment Return
- -----------------------------------------------------------------------------------------------------------------------------------
                                                                                                        
            Total investment return ...........................         3.59%            1.64%            1.06%             .90%*
                                                                 ==================================================================
===================================================================================================================================
Ratios to Average Net Assets
- -----------------------------------------------------------------------------------------------------------------------------------
            Expenses ..........................................          .15%             .15%             .15%             .21%*
                                                                 ==================================================================
            Investment income and realized gain (loss)--net ...         3.54%            1.60%            1.08%            1.25%*
                                                                 ==================================================================
===================================================================================================================================
Supplemental Data
- -----------------------------------------------------------------------------------------------------------------------------------
            Net assets, end of period (in thousands) ..........  $15,234,412      $15,428,904      $19,286,860      $23,129,013
                                                                 ==================================================================


*     Annualized.
+     Commencement of operations.

      See Notes to Financial Statements.


22          WCMA MONEY FUND                         MARCH 31, 2006


Notes to Financial Statements                                 Master Money Trust

1. Significant Accounting Policies:

Master Money Trust (the "Trust") is registered under the Investment Company Act
of 1940, as amended, and is organized as a Delaware statutory trust. The
Declaration of Trust permits the Trustees to issue nontransferable interests in
the Trust, subject to certain limitations. The Trust's financial statements are
prepared in conformity with U.S. generally accepted accounting principles, which
may require the use of management accruals and estimates. Actual results may
differ from these estimates. The following is a summary of significant
accounting policies followed by the Trust.

(a) Valuation of investments -- Portfolio securities with remaining maturities
of greater than sixty days, for which market quotations are readily available,
are valued at market value. As securities transition from sixty-one to sixty
days to maturity, the difference between the valuation existing on the
sixty-first day before maturity and maturity value is amortized on a
straight-line basis to maturity. Securities maturing sixty days or less from
their date of acquisition are valued at amortized cost, which approximates
market value. Valuation of other short-term investment vehicles is generally
based on the net asset value of the underlying investment vehicle or amortized
cost. For purposes of valuation, the maturity of a variable rate security is
deemed to be the next coupon date on which the interest rate is to be adjusted.
Other investments and assets for which market value quotations are not available
are valued at fair value as determined in good faith by or under the direction
of the Board of Trustees.

(b) Repurchase agreements -- The Trust may invest in U.S. government securities
pursuant to repurchase agreements. Under such agreements, the counterparty
agrees to repurchase the security at a mutually agreed upon time and price. The
Trust takes possession of the underlying securities, marks-to-market such
securities and, if necessary, receives additional securities daily to ensure
that the contract is fully collateralized. If the counterparty defaults and the
fair value of the collateral declines, liquidation of the collateral by the
Trust may be delayed or limited.

(c) Income taxes -- The Trust is classified as a partnership for federal income
tax purposes. As such, each investor in the Trust is treated as owner of its
proportionate share of the net assets, income, expenses and realized and
unrealized gains and losses of the Trust. Therefore, no federal income tax
provision is required. It is intended that the Trust's assets will be managed so
an investor in the Trust can satisfy the requirements of subchapter M of the
Internal Revenue Code.

(d) Security transactions and investment income -- Security transactions are
recorded on the dates the transactions are entered into (the trade dates).
Realized gains and losses on security transactions are determined on the
identified cost basis. Interest income (including amortization of premium and
discount) is recognized on the accrual basis.

(e) Securities lending -- The Trust may lend securities to financial
institutions that provide cash or securities issued or guaranteed by the U.S.
government as collateral, which will be maintained at all times in an amount
equal to at least 100% of the current market value of the loaned securities. The
market value of the loaned securities is determined at the close of business of
the Trust and any additional required collateral is delivered to the Trust on
the next business day. Where the Trust receives securities as collateral for the
loaned securities, it collects a fee from the borrower. The Trust typically
receives the income on the loaned securities but does not receive the income on
the collateral. Where the Trust receives cash collateral, it may invest such
collateral and retain the amount earned on such investment, net of any amount
rebated to the borrower. Loans of securities are terminable at any time and the
borrower, after notice, is required to return borrowed securities within five
business days. The Trust may pay reasonable finder's, lending agent,
administrative and custodial fees in connection with its loans. In the event
that the borrower defaults on its obligation to return borrowed securities
because of insolvency or for any other reason, the Trust could experience delays
and costs in gaining access to the collateral. The Trust also could suffer a
loss where the value of the collateral falls below the market value of the
borrowed securities, in the event of borrower default or in the event of losses
on investments made with cash collateral.

2. Investment Advisory Agreement and Transactions with Affiliates:

The Trust has entered into an Investment Advisory Agreement with Fund Asset
Management, L.P. ("FAM"). The general partner of FAM is Princeton Services, Inc.
("PSI"), an indirect, wholly-owned subsidiary of Merrill Lynch & Co., Inc. ("ML
& Co."), which is the limited partner.


            WCMA MONEY FUND                         MARCH 31, 2006            23


Notes to Financial Statements (concluded)                     Master Money Trust

FAM is responsible for the management of the Trust's portfolio and provides the
necessary personnel, facilities, equipment and certain other services necessary
to the operations of the Trust. For such services, the Trust pays a monthly fee
based upon the average daily value of the Trust's net assets at the following
annual rates: .25% of the Trust's average daily net assets not exceeding $500
million; .175% of the average daily net assets in excess of $500 million, but
not exceeding $1 billion; and .125% of the average daily net assets in excess of
$1 billion.

The Trust has received an exemptive order from the Securities and Exchange
Commission permitting it to lend portfolio securities to Merrill Lynch, Pierce,
Fenner & Smith Incorporated, an affiliate of FAM, or its affiliates. Pursuant to
that order, the Trust also has retained Merrill Lynch Investment Managers, LLC
("MLIM, LLC"), an affiliate of FAM, as the securities lending agent for a fee
based on a share of the returns on investment of cash collateral. MLIM, LLC may,
on behalf of the Trust, invest cash collateral received by the Trust for such
loans, among other things, in a private investment company managed by MLIM, LLC
or in registered money market funds advised by Merrill Lynch Investment
Managers, L.P. ("MLIM"), an affiliate of FAM. For the year ended March 31, 2006,
MLIM, LLC received $25,045 in securities lending agent fees.

For the year ended March 31, 2006, the Trust reimbursed FAM $335,557 for certain
accounting services.

Certain officers and/or trustees of the Trust are officers and/or directors of
FAM, PSI, ML & Co., MLIM, and/or MLIM, LLC.

In February 2006, ML & Co. and BlackRock, Inc. entered into an agreement to
contribute ML & Co.'s investment management business, including FAM, to the
investment management business of BlackRock, Inc. The transaction is expected to
close in the third quarter of 2006.


24          WCMA MONEY FUND                         MARCH 31, 2006


Report of Independent Registered Public Accounting Firm       Master Money Trust

To the Investors and Board of Trustees of Master Money Trust:

We have audited the accompanying statement of assets and liabilities, including
the schedule of investments, of Master Money 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 the respective periods 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, the financial statements and financial highlights referred to
above present fairly, in all material respects, the financial position of Master
Money Trust 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 the respective periods then
ended, in conformity with U.S. generally accepted accounting principles.

Deloitte & Touche LLP
Princeton, New Jersey
May 22, 2006


            WCMA MONEY FUND                         MARCH 31, 2006            25


Officers and Trustees



                                                                                                    Number of
                                                                                                    Portfolios in   Other Public
                           Position(s)  Length of                                                   Fund Complex    Directorships
                           Held with    Time                                                        Overseen by     Held by
Name        Address & Age  Fund/Trust   Served     Principal Occupation(s) During Past 5 Years      Trustee         Trustee
====================================================================================================================================
Interested Trustee
- ------------------------------------------------------------------------------------------------------------------------------------
                                                                                                  
Robert C.   P.O. Box 9011  President    2005 to    President of the MLIM/FAM-advised funds since    131 Funds       None
Doll, Jr.*  Princeton, NJ  and          present    2005; President of MLIM and FAM since 2001;      177 Portfolios
            08543-9011     Trustee                 Co-Head (Americas Region) thereof from 2000 to
            Age: 51                                2001 and Senior Vice President from 1999 to
                                                   2001; President and Director of Princeton
                                                   Services, Inc. ("Princeton Services") since
                                                   2001; President of Princeton Administrators,
                                                   L.P. ("Princeton Administrators") since 2001;
                                                   Chief Investment Officer of Oppenheimer- Funds,
                                                   Inc. in 1999 and Executive Vice President
                                                   thereof from 1991 to 1999.
            ------------------------------------------------------------------------------------------------------------------------
            *     Mr. Doll is a director, trustee or member of an advisory board of certain other investment companies for which
                  MLIM or FAM acts as investment adviser. Mr. Doll is an "interested person," as defined in the Investment Company
                  Act, of the Fund based on his positions with MLIM, FAM, Princeton Services and Princeton Administrators. Trustees
                  serve until their resignation, removal or death, or until December 31 of the year in which they turn 72. As
                  Fund/Trust President, Mr. Doll serves at the pleasure of the Board of Trustees.
====================================================================================================================================
Independent Trustees*
- ------------------------------------------------------------------------------------------------------------------------------------
Ronald W.   P.O. Box 9095  Trustee      2002 to    Professor Emeritus of Finance, School of         49 Funds        None
Forbes      Princeton, NJ               present    Business, State University of New York at        50 Portfolios
            08543-9095                             Albany since 2000 and Professor thereof from
            Age: 65                                1989 to 2000; International Consultant, Urban
                                                   Institute, Washington, D.C. from 1995 to 1999.
- ------------------------------------------------------------------------------------------------------------------------------------
Cynthia A.  P.O. Box 9095  Trustee      2002 to    Professor, Harvard Business School since 1989;   49 Funds        Newell
Montgomery  Princeton, NJ               present    Associate Professor, J.L. Kellogg Graduate       50 Portfolios   Rubbermaid,
            08543-9095                             School of Management, Northwestern University                    Inc.
            Age: 53                                from 1985 to 1989; Associate Professor,                          (manufacturing)
                                                   Graduate School of Business Administration,
                                                   University of Michigan from 1979 to 1985;
                                                   Director, Harvard Business School Publishing
                                                   since 2005; Director, McLean Hospital since
                                                   2005.
- ------------------------------------------------------------------------------------------------------------------------------------
Jean Margo  P.O. Box 9095  Trustee      2004 to    Self-employed consultant since 2001; Counsel of  49 Funds        None
Reid        Princeton, NJ               present    Alliance Capital Management (investment          50 Portfolios
            08543-9095                             adviser) in 2000; General Counsel, Director and
            Age: 60                                Secretary of Sanford C. Bernstein & Co., Inc.
                                                   (investment adviser/broker-dealer) from 1997 to
                                                   2000; Secretary, Sanford C. Bernstein Fund,
                                                   Inc. from 1994 to 2000; Director and Secretary
                                                   of SCB, Inc. since 1998; Director and Secretary
                                                   of SCB Partners, Inc. since 2000; and Director
                                                   of Covenant House from 2001 to 2004.
- ------------------------------------------------------------------------------------------------------------------------------------
Roscoe S.   P.O. Box 9095  Trustee      2002 to    President, Middle East Institute from 1995 to    49 Funds        None
Suddarth    Princeton, NJ               present    2001; Foreign Service Officer, United States     50 Portfolios
            08543-9095                             Foreign Service, from 1961 to 1995 and Career
            Age: 70                                Minister from 1989 to 1995; Deputy Inspector
                                                   General, U.S. Department of State, from 1991 to
                                                   1994; U.S. Ambassador to the Hashemite Kingdom
                                                   of Jordan from 1987 to 1990.
- ------------------------------------------------------------------------------------------------------------------------------------
Richard R.  P.O. Box 9095  Trustee      2002 to    Professor of Finance from 1984 to 1995, Dean     49 Funds        Bowne & Co.,
West        Princeton, NJ               present    from 1984 to 1993 and since 1995 Dean Emeritus   50 Portfolios   Inc. (financial
            08543-9095                             of New York University's Leonard N. Stern                        printers);
            Age: 68                                School of Business Administration.                               Vornado Realty
                                                                                                                    Trust (real
                                                                                                                    estate company);
                                                                                                                    Alexander's,
                                                                                                                    Inc. (real
                                                                                                                    estate company)



26          WCMA MONEY FUND                         MARCH 31, 2006


Officers and Trustees (concluded)



                                                                                                    Number of
                                                                                                    Portfolios in   Other Public
                           Position(s)  Length of                                                   Fund Complex    Directorships
                           Held with    Time                                                        Overseen by     Held by
Name        Address & Age  Fund/Trust   Served     Principal Occupation(s) During Past 5 Years      Trustee         Trustee
====================================================================================================================================
Independent Trustees* (concluded)
- ------------------------------------------------------------------------------------------------------------------------------------
                                                                                                  
Edward D.   P.O. Box 9095  Trustee      2002 to    Self-employed financial consultant since 1994;   49 Funds        None
Zinbarg     Princeton, NJ               present    Executive Vice President of the Prudential       50 Portfolios
            08543-9095                             Insurance Company of America from 1988 to 1994;
            Age: 71                                Former Director of Prudential Reinsurance
                                                   Company and former Trustee of the Prudential
                                                   Foundation.
            ------------------------------------------------------------------------------------------------------------------------
            *     Trustees serve until their resignation, removal or death, or until December 31 of the year in which they turn 72.
            **    Chairman of the Board of Trustees and the Audit Committee.
- ------------------------------------------------------------------------------------------------------------------------------------


                           Position(s)  Length of
                           Held with    Time
Name        Address & Age  Fund/Trust   Served     Principal Occupation(s) During Past 5 Years
====================================================================================================================================
Fund Officers*
- ------------------------------------------------------------------------------------------------------------------------------------
                                       
Donald C.   P.O. Box 9011  Vice         2002 to    First Vice President of MLIM and FAM since 1997 and Treasurer thereof since
Burke       Princeton, NJ  President    present    1999; Senior Vice President and Treasurer of Princeton Services since 1999 and
            08543-9011     and                     Director since 2004; Vice President of FAM Distributors, Inc. ("FAMD") since
            Age: 45        Treasurer               1999 and Director since 2004; Vice President of MLIM and FAM from 1990 to 1997;
                                                   Director of Taxation of MLIM from 1990 to 2001; Vice President, Treasurer and
                                                   Secretary of the IQ Funds since 2004.
- ------------------------------------------------------------------------------------------------------------------------------------
Richard J.  P.O. Box 9011  Vice         2002 to    Director of MLIM since 2000; Vice President of MLIM from 1995 to 2000.
Mejzak      Princeton, NJ  President    present
            08543-9011
            Age: 37
- ------------------------------------------------------------------------------------------------------------------------------------
Jeffrey     P.O. Box 9011  Chief        2004 to    Chief Compliance Officer of the MLIM/FAM-advised funds and First Vice President
Hiller      Princeton, NJ  Compliance   present    and Chief Compliance Officer of MLIM (Americas Region) since 2004; Chief
            08543-9011     Officer                 Compliance Officer of the IQ Funds since 2004; Global Director of Compliance at
            Age: 54                                Morgan Stanley Investment Management from 2002 to 2004; Managing Director and
                                                   Global Director of Compliance at Citigroup Asset Management from 2000 to 2002;
                                                   Chief Compliance Officer at Soros Fund Management in 2000; Chief Compliance
                                                   Officer at Prudential Financial from 1995 to 2000; Senior Counsel in the
                                                   Commission's Securities and Exchange Division of Enforcement in Washington, D.C.
                                                   from 1990 to 1995.
- ------------------------------------------------------------------------------------------------------------------------------------
Alice A.    P.O. Box 9011  Secretary    2004 to    Director (Legal Advisory) of MLIM since 2002; Vice President of MLIM from 1999
Pellegrino  Princeton, NJ               present    to 2002; Attorney associated with MLIM since 1997; Secretary of MLIM, FAM, FAMD
            08543-9011                             and Princeton since 2004.
            Age: 46
            ------------------------------------------------------------------------------------------------------------------------
            *     Officers of the Fund/Trust serve at the pleasure of the Board of Trustees.
            ------------------------------------------------------------------------------------------------------------------------
            Further information about the Fund's Officers and Trustees is available in the Fund's Statement of Additional
            Information, which can be obtained without charge by calling 1-800-637-3863.
- ------------------------------------------------------------------------------------------------------------------------------------


Custodian

State Street Bank and Trust Company
P.O. Box 351
Boston, MA 02101

Transfer Agent

Financial Data Services, Inc.
4800 Deer Lake Drive East
Jacksonville, FL 32246-6484
800-221-7210*
*     For inquiries regarding your WCMA account, call 800-262-4636.

Electronic Delivery

The Fund offers electronic delivery of communications to its shareholders. In
order to receive this service, you must register your account and provide us
with e-mail information. To sign up for this service, simply access this Web
site at http://www.icsdelivery.com/live and follow the instructions. When you
visit this site, you will obtain a personal identification number (PIN). You
will need this PIN should you wish to update your e-mail address, choose to
discontinue this service and/or make any other changes to the service. This
service is not available for certain retirement accounts at this time.


            WCMA MONEY FUND                         MARCH 31, 2006            27


[LOGO] Merrill Lynch  Investment Managers

www.mlim.ml.com

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

Mercury Advisors

A Division of Merrill Lynch Investment Managers

www.mercury.ml.com

This report is not authorized for use as an offer of sale or a solicitation of
an offer to buy shares of the Fund unless accompanied or preceded by the Fund's
current prospectus. An investment in the Fund is not insured or guaranteed by
the Federal Deposit Insurance Corporation or any other government agency.
Although the Fund seeks to preserve the value of your investment at $1.00 per
share, it is possible to lose money by investing in the Fund. Past performance
results shown in this report should not be considered a representation of future
performance, which will fluctuate. Refer to www.mlim.ml.com to obtain
performance data current to the most recent month-end. Statements and other
information herein are as dated and are subject to change.

A description of the policies and procedures that the Fund uses to determine how
to vote proxies relating to portfolio securities is available (1) without
charge, upon request, by calling toll-free 1-800-637-3863; (2) at
www.mutualfunds.ml.com; and (3) on the Securities and Exchange Commission's Web
site at http://www.sec.gov. Information about how the Fund voted proxies
relating to securities held in the Fund's portfolio during the most recent
12-month period ended June 30 is available (1) at www.mutualfunds.ml.com and (2)
on the Securities and Exchange Commission's Web site at http://www.sec.gov.

WCMA Money Fund
Box 9011
Princeton, NJ 08543-9011

                                                                  #WCMAM -- 3/06



Item 2 - Code of Ethics - The registrant has adopted a code of ethics, as of the
         end of the period covered by this report, that applies to the
         registrant's principal executive officer, principal financial officer
         and principal accounting officer, or persons performing similar
         functions. A copy of the code of ethics is available without charge
         upon request by calling toll-free 1-800-MER-FUND (1-800-637-3863).

Item 3 - Audit Committee Financial Expert - The registrant's board of directors
         has determined that (i) the registrant has the following audit
         committee financial experts serving on its audit committee and (ii)
         each audit committee financial expert is independent: (1) Ronald W.
         Forbes, (2) Richard R. West, and (3) Edward D. Zinbarg.

Item 4 - Principal Accountant Fees and Services

         WCMA Money Fund

         (a) Audit Fees -         Fiscal Year Ending March 31, 2006 - $6,600
                                  Fiscal Year Ending March 31, 2005 - $6,500

         (b) Audit-Related Fees - Fiscal Year Ending March 31, 2006 - $0
                                  Fiscal Year Ending March 31, 2005 - $0

         (c) Tax Fees -           Fiscal Year Ending March 31, 2006 - $6,000
                                  Fiscal Year Ending March 31, 2005 - $6,300

         The nature of the services include tax compliance, tax advice and tax
         planning.

         (d) All Other Fees -     Fiscal Year Ending March 31, 2006 - $0
                                  Fiscal Year Ending March 31, 2005 - $0

         Master Money Trust

         (a) Audit Fees -         Fiscal Year Ending March 31, 2006 - $41,600
                                  Fiscal Year Ending March 31, 2005 - $41,000

         (b) Audit-Related Fees - Fiscal Year Ending March 31, 2006 - $0
                                  Fiscal Year Ending March 31, 2005 - $0

         (c) Tax Fees -           Fiscal Year Ending March 31, 2006 - $9,200
                                  Fiscal Year Ending March 31, 2005 - $8,700

         The nature of the services include tax compliance, tax advice and tax
         planning.

         (d) All Other Fees -     Fiscal Year Ending March 31, 2006 - $0
                                  Fiscal Year Ending March 31, 2005 - $0

         (e)(1) The registrant's audit committee (the "Committee") has adopted
         policies and procedures with regard to the pre-approval of services.
         Audit, audit-related and tax compliance services provided to the
         registrant on an annual basis require specific pre-approval by the
         Committee. The Committee also must approve other non-audit services
         provided to the registrant and those non-audit services provided to the
         registrant's affiliated service providers that relate directly to the
         operations and the financial reporting of the registrant. Certain of
         these non-audit services that the Committee believes are a) consistent
         with the SEC's auditor independence rules and b) routine and recurring
         services that will not impair the independence of the independent



         accountants may be approved by the Committee without consideration on a
         specific case-by-case basis ("general pre-approval"). However, such
         services will only be deemed pre-approved provided that any individual
         project does not exceed $5,000 attributable to the registrant or
         $50,000 for all of the registrants the Committee oversees. Any proposed
         services exceeding the pre-approved cost levels will require specific
         pre-approval by the Committee, as will any other services not subject
         to general pre-approval (e.g., unanticipated but permissible services).
         The Committee is informed of each service approved subject to general
         pre-approval at the next regularly scheduled in-person board meeting.

         (e)(2) 0%

         (f) Not Applicable

         (g) Fiscal Year Ending March 31, 2006 - $3,754,550
             Fiscal Year Ending March 31, 2005 - $10,018,400

         (h) The registrant's audit committee has considered and determined that
         the provision of non-audit services that were rendered to the
         registrant's investment adviser and any entity controlling, controlled
         by, or under common control with the investment adviser that provides
         ongoing services to the registrant that were not pre-approved pursuant
         to paragraph (c)(7)(ii) of Rule 2-01 of Regulation S-X is compatible
         with maintaining the principal accountant's independence.

         Regulation S-X Rule 2-01(c)(7)(ii) - $1,227,000, 0%

Item 5 - Audit Committee of Listed Registrants - Not Applicable

Item 6 - Schedule of Investments - Not Applicable

Item 7 - Disclosure of Proxy Voting Policies and Procedures for Closed-End
         Management Investment Companies - Not Applicable

Item 8 - Portfolio Managers of Closed-End Management Investment Companies - Not
         Applicable

Item 9 - Purchases of Equity Securities by Closed-End Management Investment
         Company and Affiliated Purchasers - Not Applicable

Item 10 - Submission of Matters to a Vote of Security Holders - Not Applicable

Item 11 - Controls and Procedures

11(a) - The registrant's certifying officers have reasonably designed such
        disclosure controls and procedures to ensure material information
        relating to the registrant is made known to us by others particularly
        during the period in which this report is being prepared. The
        registrant's certifying officers have determined that the registrant's
        disclosure controls and procedures are effective based on our evaluation
        of these controls and procedures as of a date within 90 days prior to
        the filing date of this report.



11(b) - There were no changes in the registrant's internal control over
        financial reporting (as defined in Rule 30a-3(d) under the Act (17 CFR
        270.30a-3(d)) that occurred during the second fiscal half-year of the
        period covered by this report that has materially affected, or is
        reasonably likely to materially affect, the registrant's internal
        control over financial reporting.

Item 12 - Exhibits attached hereto

12(a)(1) - Code of Ethics - See Item 2

12(a)(2) - Certifications - Attached hereto

12(a)(3) - Not Applicable

12(b) - Certifications - Attached hereto

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.

WCMA Money Fund and Master Money Trust


By: /s/ Robert C. Doll, Jr.
    ----------------------------------
    Robert C. Doll, Jr.,
    Chief Executive Officer of
    WCMA Money Fund and Master Money Trust

Date: May 22, 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: /s/ Robert C. Doll, Jr.
    ----------------------------------
    Robert C. Doll, Jr.,
    Chief Executive Officer of
    WCMA Money Fund and Master Money Trust

Date: May 22, 2006


By: /s/ Donald C. Burke
    ----------------------------------
    Donald C. Burke,
    Chief Financial Officer of
    WCMA Money Fund and Master Money Trust

Date: May 22, 2006