PIONEER MONEY MARKET TRUST
485APOS, 1995-03-29
Previous: GROWTH & GUARANTEE FUND L P, 10-K405, 1995-03-29
Next: HOECHST CELANESE CORP, 10-K405, 1995-03-29






   
     As Filed With The Securities and Exchange Commission on March 28, 1995
    
                    Registration Nos. 33-13179 and 811-5099


                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                   FORM N-1A

   
                                                                    ----
         REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933   / X /
                                                                   ----
                  Pre-Effective Amendment No. ___                  /   /
                                                                   ----
                  Post-Effective Amendment No. 12                  / X /
                                                                   ---- 

                                     and/or
                                                                    ----
REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940    /   /
                                                                   ----
                  Amendment No. 13                                / X /
    

                        (Check appropriate box or boxes)


                           PIONEER MONEY MARKET TRUST
               (Exact name of registrant as specified in charter)


                  60 State Street, Boston, Massachusetts 02109
                (Address of principal executive office) Zip Code


       Registrant's Telephone Number, including Area Code: (617) 742-7825


    Joseph P. Barri, Esq., Hale and Dorr, 60 State Street, Boston, MA 02109
                    (Name and address of agent for service)


It is proposed that this filing will become effective (check appropriate box)

   
         ___      immediately upon filing pursuant to paragraph (b)
         ___      on [date] pursuant to paragraph (b)
         ___      60 days after filing pursuant to paragraph (a)
          X       on March 31, 1995 pursuant to paragraph (a) of Rule 485
         ---                                                             


Registrant  has  registered  an  indefinite   amount  of  securities  under  the
Securities Act of 1933 pursuant to Section 24(f) of the  Investment  Company Act
of 1940.  The  Registrant  filed the notice  required by Rule 24f-2 for its most
recent fiscal year on February 27, 1995.
    
<PAGE>


                           PIONEER MONEY MARKET TRUST

            Cross-Reference Sheet Showing Location in Prospectus and
         Statement of Additional Information of Information Required by
                         Items of the Registration Form

<TABLE>
<CAPTION>

                                                                        Location in Prospectus
     Form N-1A Item Number                                                  or Statement of
          and Caption                                                   Additional Information

<S>                                                               <C>                                             
1.   Cover Page..............................................     Prospectus - Cover Page

2.   Synopsis................................................     Prospectus - Expense Information

   
3.   Condensed Financial Information.........................     Prospectus - Financial Highlights
    

4.   General Description of
     Registrant..............................................     Prospectus - Three Investment Programs; Management of
                                                                  the Trust

5.   Management of the Fund..................................     Prospectus - Management of the Trust

6.   Capital Stock and Other
     Securities..............................................     Prospectus - Dividends, Distributions and Taxation;
                                                                  Management of the Trust; The Trust

   
7.   Purchase of Securities
     Being Offered...........................................     Prospectus - How to Buy Fund Shares; How to Exchange
                                                                  Fund Shares; Dividends, Distributions and Taxation

8.   Redemption or Repurchase................................     Prospectus - How to Sell Fund Shares; How to Exchange
     Fund Shares
    

9.   Pending Legal Proceedings...............................     Not Applicable

10.  Cover Page..............................................     Statement of Additional Information - Cover Page

11.  Table of Contents.......................................     Statement of Additional Information - Cover Page

   
12.  General Information and History.........................     Statement of Additional Information - Cover Page;
                                                                  Description of Shares

13.  Investment Objectives and Policy........................     Statement of Additional Information - Investment
     Policies and Restrictions
    

14.  Management of the Fund..................................     Statement of Additional Information - Management of the
                                                                  Trust; Investment Adviser

   
15.  Control Persons and Principal
     Holders of Securities...................................     Statement of Additional Information - Management of the
                                                                  Trust

16.  Investment Advisory and
     Other Services...................................            Statement of Additional Information - Management of the Trust; 
                                                                  Investment Adviser; Shareholder Servicing/Transfer Agent; 
                                                                  Custodian; Independent Public Accountants
    

17.  Brokerage Allocation and
     Other Practices.........................................     Statement of Additional Information - Portfolio
                                                                  Transactions
<PAGE>

18.  Capital Stock and Other
     Securities..............................................     Statement of Additional Information - Description of
                                                                  Shares; Certain Liabilities

19.  Purchase Redemption and
     Pricing of Securities
     Being Offered...........................................     Statement of Additional Information - Determination of
                                                                  Net Asset Value; Systematic Withdrawal Plan

20.  Tax Status..............................................     Statement of Additional Information - Tax Status

   
21.  Underwriters............................................     Statement of Additional Information - Underwriting
                                                                  Agreement and Distribution Plans; Principal Underwriter

22.  Calculation of Performance Data.........................     Statement of Additional Information - Investment Results
    

23.  Financial Statements....................................     Statement of Additional Information - Report of
                                                                  Independent Public Accountants, Financial Statements

</TABLE>
<PAGE>

                                EXPLANATORY NOTE


     This  Post-Effective  Amendment  No. 12 to the  Registration  Statement  of
Pioneer Money Market Trust, a Massachusetts  business trust (the  "Massachusetts
Trust"), is being filed by Pioneer Money Market Trust, a Delaware business trust
(the  "Delaware  Trust"),  pursuant  to Rule  414(d) and Rule  485(a)  under the
Securities  Act of 1933,  as  amended,  for the  purpose of the  Delaware  Trust
adopting the Massachusetts Trust's Registration Statement. The Delaware Trust is
requesting  acceleration of the effective date of this Post-Effective  Amendment
to March 31, 1995 which is the first business date after the Massachusetts Trust
is reorganized as a Delaware business trust. The  reorganization was approved by
the  shareholders  of the  Massachusetts  Trust at a meeting held on February 7,
1995.

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


                       ADOPTION OF REGISTRATION STATEMENT

     The Delaware Trust hereby affirmatively  adopts the Registration  Statement
(File Nos. 33-13179 and 811-5099) of the Massachusetts Trust.

<PAGE>


Pioneer Cash Reserves Fund 
Pioneer U.S. Government Money Fund 
Pioneer Tax-Free Money Fund 

   
Class A and Class B Shares 
Prospectus March 31, 1995 
    

   
Pioneer Cash Reserves Fund, Pioneer U.S. Government Money Fund and Pioneer 
Tax-Free Money Fund (the "Funds") are money market funds. The Funds' Class A 
shares are offered without a sales charge. The Funds' investment objective is 
to provide high current income, preservation of capital and liquidity through 
investments in high-quality short-term securities. Each Fund employs different 
investment policies to achieve this investment objective. 
    

   
Pioneer Cash Reserves Fund (Class A and B Shares)--a portfolio of money market 
instruments, including: securities of the United States government and its 
agencies and instrumentalities; certificates of deposit; corporate commercial 
paper; and other debt instruments. 
    

   
Pioneer U.S. Government Money Fund (Class A Shares Only)--a portfolio of 
securities issued or guaranteed as to principal and interest by the United 
States government, the interest on which is generally exempt from state income 
tax. 
    

   
Pioneer Tax-Free Money Fund (Class A Shares Only)--a portfolio of obligations 
issued by states, territories and possessions of the United States ("U.S.") the 
interest on which is exempt from federal income tax. 
    

   
This Prospectus (Part A of the Registration Statement) provides information 
about the Funds that you should know before investing. Please read and keep it 
for your future reference. More information about the Funds is included in Part 
B, the Statement of Additional Information, dated March 31, 1995, which is 
incorporated into this Prospectus by reference. You may obtain a copy of the 
Statement of Additional Information free of charge by calling Shareholder 
Services at 1-800-225-6292 or by written request to the Funds at 60 State 
Street, Boston, Massachusetts 02109. Other information about the Funds has been 
filed with the Securities and Exchange Commission (the "SEC") and is available 
upon request and without charge. 
    

The yield for each Fund will fluctuate. Shares in the Funds are not deposits or 
obligations of, or guaranteed or endorsed by, any bank, and the shares are not 
federally insured by the Federal Deposit Insurance Corporation, the Federal 
Reserve Board or any other agency. INVESTMENTS IN THE FUNDS ARE NEITHER INSURED 
NOR GUARANTEED BY THE UNITED STATES GOVERNMENT. THERE CAN BE NO ASSURANCE THAT 
THE FUNDS WILL BE ABLE TO MAINTAIN A STABLE NET ASSET VALUE OF $1.00 PER SHARE. 

   
        TABLE OF CONTENTS                                       PAGE 
I.      EXPENSE INFORMATION                                        2 
II.     FINANCIAL HIGHLIGHTS                                       3 
III.    THE TRUST                                                  4 
IV.     THREE INVESTMENT PROGRAMS                                  4 
         Suitability                                               4 
         Investment Policies                                       4 
         Additional Information                                    6 
V.      FUND SHARE ALTERNATIVES                                    6 
         Class A Shares                                            6 
         Class B Shares                                            6 
VI.     SHARE PRICE                                                7 
VII.    HOW TO BUY FUND SHARES                                     7 
VIII.   HOW TO SELL FUND SHARES                                    9 
IX.     HOW TO EXCHANGE FUND SHARES                               10 
X.      DISTRIBUTION PLANS                                        11 
XI.     DIVIDENDS, DISTRIBUTIONS AND TAXATION                     11 
XII.    MANAGEMENT OF THE TRUST                                   12 
XIII.   DESCRIPTION OF SHARES AND VOTING RIGHTS                   13 
XIV.    SHAREHOLDER SERVICES                                      13 
         Account and Confirmation Statements                      13 
         Additional Investments                                   14 
         Automatic Investment Plans                               14 
         Financial Reports and Tax Information                    14 
         Dividend Options                                         14 
         Voluntary Tax Withholding                                14 
         Retirement Plans                                         14 
         Yield Information                                        14 
         Telecommunications Device for the Deaf (TDD)             14 
         Systematic Withdrawal Plans                              14 
         Telephone Transactions and Related Liabilities           14 
XV.     INVESTMENT RESULTS                                        15 
XVI.    APPENDIX                                                  15 
    

THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND 
EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE COMMISSION 
OR ANY STATE SECURITIES COMMISSION PASSED UPON THE ACCURACY OR ADEQUACY OF THIS 
PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE. 

                                        
<PAGE>
 
I. EXPENSE INFORMATION 
   
This table is designed to help you understand the charges and expenses that 
you, as a shareholder, will bear directly or indirectly when you invest in the 
Funds. The table reflects annual operating expenses based upon actual expenses 
of the Class A shares for the fiscal year ended December 31, 1994, expressed as 
a percentage of the average net assets of each Fund. 
    

   
                                                            Pioneer Cash 
                                                           Reserves Fund 
Shareholder Transaction Expenses:                     Class A         Class B 
Maximum Initial Sales Charge on Purchases (as a 
  percentage of offering price)                         None           None 
Maximum Sales Charge on Reinvestment of 
  Dividends                                             None           None 
Maximum Deferred Sales Charge (as a percentage 
  of original purchase price or redemption 
  price, as applicable)                                 None           4.00% 
Redemption Fee(1)                                       None           None 
Exchange Fee                                            None           None 
Annual Operating Expenses (as a percentage of 
  net assets):(3) 
Management Fee (after Expense Limitation)(2)            0.25%          0.25% 
12b-1 Fees                                              0.10%          1.00% 
Other Expenses (including transfer agent fee, 
  custodian fees and accounting and printing 
  expenses)                                             0.50%          0.50% 
Total Operating Expenses: 
  (after Expense Limitation)(2)                         0.85%          1.75% 

                                                       Pioneer          Pioneer
                                                     U.S. Govern-       Tax-Free
                                                      ment Money          Money 
                                                         Fund             Fund 
Shareholder Transaction Expenses: 
Maximum Initial Sales Charge on Purchases (as a 
  percentage of offering price)                          None             None 
Maximum Sales Charge on Reinvestment of 
  Dividends                                              None             None 
Redemption Fee(1)                                        None             None 
Exchange Fee                                             None             None 
Annual Operating Expenses 
   (as a percentage of net assets):(3) 
Management Fee (after Expense Limitation)(2)             0.00%            0.00% 
12b-1 Fees                                               0.12%            0.09% 
Other Expenses (including transfer agent fee, 
  custodian fees and accounting and printing 
  expenses) 
  (after Expense Limitation)(2)                          0.73%            0.66% 
Total Operating Expenses 
  (after Expense Limitation)(2)                          0.85%            0.75% 

(1) Separate fees (currently $10 and $20, respectively) apply to domestic or 
    international bank wire transfers of redemption proceeds. 
(2) Effective April 1, 1995, Pioneering Management Corporation ("PMC"), the
    Funds' investment adviser, has agreed not to impose its management fee and
    to make other arrangements, if necessary, to limit the operating expenses of
    each Fund as listed below. This agreement is voluntary and temporary and may
    be revised or terminated at any time.
    

   
                                                      Pioneer 
                                      Pioneer           U.S.           Pioneer 
                                        Cash         Government       Tax-Free 
                                      Reserves         Money            Money 
              Fund                      Fund            Fund            Fund 
Management Fee                          0.40%           0.40%           0.40% 
Expense Limitation                      0.85%*          0.85%           0.75% 
Expenses Absent Limitation 
 Other Expenses 
  Class A                                n/a            0.78%           1.63% 
  Class B                                n/a             n/a             n/a 
 Total Operating Expenses 
  Class A                               1.00%           1.30%           2.12% 
  Class B                               1.90%            n/a             n/a 

*For Pioneer Cash Reserves Fund, the portion of fund-wide expenses attributable 
 to Class B shares will be reduced only to the extent such expenses are reduced 
 for the Class A shares of that Fund. 
(3) For Class B shares, percentages are based on estimated expenses that would
    have been incurred during the previous fiscal year had Class B shares been
    outstanding. 
    

 Example: 

You would pay the following expenses on a $1,000 investment, assuming a 5% 
annual return and constant expenses, with or without redemption at the end of 
each time period: 
<TABLE>
<CAPTION>
                                    Pioneer Cash Reserves Fund 
                         1 Year      3 Years      5 Years       10 Years 
<S>                      <C>         <C>          <C>           <C>
Class A Shares             $ 9         $27          $ 47         $ 104 
Class B Shares 
  --Assuming 
  complete 
    redemption at 
    end of period          $58         $85          $115         $184* 
 --Assuming no 
    redemption             $18         $55          $ 95         $184* 
</TABLE>

   
*Class B shares convert to Class A shares eight years after purchase; 
 therefore, Class A expenses are used after year eight. 
<TABLE>
<CAPTION>
                                   1 Year      3 Years      5 Years       10 Years 
<S>                                  <C>         <C>          <C>           <C>
Pioneer U.S. Government Money 
  Fund                               $9          $27          $47           $105 
Pioneer Tax-Free Money Fund          $8          $24          $42           $ 94 
</TABLE>
    

   
The example above assumes reinvestment of all dividends and distributions and 
that the percentage amounts listed under "Annual Operating Expenses" remain the 
same each year. 
    

The example is designed for information purposes only, and should not be 
considered a representation of past or future expenses or return. Actual Fund 
expenses and return vary from year to year and may be higher or lower than 
those shown. 

   
A sales charge may be applied to exchanges of shares of the Funds for shares of 
certain other Pioneer mutual funds. See "How to Exchange Fund Shares." The 
payment of Rule 12b-1 fees by Pioneer Cash Reserves Fund may result in 
long-term shareholders of that Fund indirectly paying more than the economic 
equivalent of the maximum sales charge permitted under the National Association 
of Securities Dealers, Inc. Rules of Fair Practice. 
    

   
For further information regarding management fees, 12b-1 fees and other 
expenses of the Trust, including information regarding the basis upon which 
management fees and 12b-1 fees are paid, see "Management of the Trust," 
"Distribution Plans" and "How To Buy Fund Shares" in this Prospectus and 
"Management of the Trust" and "Distribution Plans" in the Statement of 
Additional Information. 
    


                                        2 
<PAGE>
 
II. FINANCIAL HIGHLIGHTS 

   
The following information has been derived from financial statements of the 
Funds which have been audited by Arthur Andersen LLP, independent public 
accountants. Arthur Andersen LLP's report on the Trust's financial statements 
as of December 31, 1994, appears in the Trust's Annual Report which is 
incorporated by reference into the Statement of Additional Information. The 
information listed below should be read in conjunction with the financial 
statements contained in the Trust's Annual Report. Class B shares are a new 
class of shares available only for Pioneer Cash Reserves Fund; no Financial 
Highlights exist for Class B shares. 
    

   
<TABLE>
Pioneer Cash Reserves Fund 
Selected Data for each Class A Share Outstanding For the Periods Presented 
<CAPTION>
                                                                                                                       June 22, 
                                                                                                                        1987 to 
                                                              For the Year Ended December 31,                         December 31, 
                                         1994       1993       1992       1991       1990       1989       1988          1987 
<S>                                   <C>         <C>        <C>        <C>        <C>         <C>        <C>           <C>
Net asset value, beginning of 
  period                              $   1.00    $  1.00    $  1.00    $  1.00    $   1.00    $  1.00    $  1.00       $  1.00 
Income from investment operations: 
Net investment income                 $   0.03    $  0.02    $  0.03    $  0.05    $   0.07    $  0.08    $  0.07       $  0.03 
Distributions to shareholders from: 
Net investment income                    (0.03)     (0.02)     (0.03)     (0.05)      (0.07)     (0.08)     (0.07)        (0.03) 
Net increase in net asset value       $   0.00    $  0.00    $  0.00    $  0.00    $   0.00    $  0.00    $  0.00       $  0.00 
Net asset value, end of period        $   1.00    $  1.00    $  1.00    $  1.00    $   1.00    $  1.00    $  1.00       $  1.00 
Total return*                             3.57%      2.47%      3.06%      5.29%       7.74%      8.80%      7.05%         3.48% 
Ratio of net operating expenses to 
  average net assets                      0.50%      0.75%      0.81%      0.88%       0.75%      0.82%      0.78%         0.53%** 
Ratio of net investment income to 
  average net assets                      2.59%      2.44%      3.03%      5.23%       7.53%      8.43%      6.91%         6.94%** 
Net assets end of period (in 
  thousands)                          $173,195    $64,841    $59,097    $73,010    $101,120    $80,121    $59,592       $34,756 
Ratios assuming no reduction of 
  fees or expenses: 
Net operating expenses                    0.65%      1.10%      1.01%         +           +          +       0.91%         1.01%** 
Net investment income                     2.44%      2.09%      2.82%         +           +          +       6.77%         6.46%** 
</TABLE>
    

   
<TABLE>
Pioneer U.S. Government Money Fund 
Selected Data for each Class A Share Outstanding For the Periods Presented 
<CAPTION>
                                                                                                                        April 11, 
                                                                                                                        1988 to 
                                                                    For the Year Ended December 31,                   December 31, 
                                          1994         1993         1992         1991         1990         1989          1988 
<S>                                     <C>          <C>          <C>          <C>          <C>          <C>            <C>
Net asset value, beginning of 
  period                                $  1.00      $  1.00      $  1.00      $  1.00      $  1.00      $  1.00        $ 1.00 
Income from investment operations: 
Net investment income                   $  0.04      $  0.03      $  0.03      $  0.05      $  0.07      $  0.08        $ 0.05 
Distributions to shareholders from: 
Net investment income                     (0.04)       (0.03)       (0.03)       (0.05)       (0.07)       (0.08)        (0.05) 
Net increase in net asset value         $  0.00      $  0.00      $  0.00      $  0.00      $  0.00      $  0.00        $ 0.00 
Net asset value, end of period          $  1.00      $  1.00      $  1.00      $  1.00      $  1.00      $  1.00        $ 1.00 
Total return*                              3.65%        2.63%        3.19%        5.41%        7.61%        8.80%         5.34% 
Ratio of net operating expenses to 
  average net assets                       0.63%        0.55%        0.59%        0.60%        0.60%        0.53%         0.50%** 
   
Ratio of net investment income to 
  average net assets                       3.64%        2.61%        3.15%        5.29%        7.37%        8.37%         7.52%** 
   
Net assets end of period 
(in thousands)                          $29,101      $23,875      $23,619      $28,373      $27,828      $20,508        $9,503 
Ratios assuming no reduction of 
  fees or expenses: 
Net operating expenses                     1.08%        1.37%        1.24%        1.08%        0.80%        1.12%         1.13%** 
   
Net investment income                      3.19%        1.79%        2.50%        4.81%        7.17%        7.77%         6.88%** 
   
</TABLE>
    

   
 * Assumes initial investment at net asset value at the beginning of each 
   period, reinvestment of all dividends and distributions, and the complete 
   redemption of the investment at the net asset value at the end of each 
   period. 
** Annualized. 
 + No reduction of fees or expenses in this period. 
    


                                        3 
<PAGE>
 
   
<TABLE>
Pioneer Tax-Free Money Fund 
Selected Data for each Class A Share Outstanding For the Periods Presented 
<CAPTION>
                                                                                                                  April 11, 
                                                                                                                   1988 to 
                                                             For the Year Ended December 31,                     December 31, 
                                          1994        1993        1992        1991        1990        1989          1988 
<S>                                     <C>          <C>         <C>         <C>         <C>         <C>           <C>
Net asset value, beginning of 
  period                                $  1.00      $ 1.00      $ 1.00      $ 1.00      $ 1.00      $ 1.00        $ 1.00 
Income from investment operations: 
Net investment income                   $  0.02      $ 0.02      $ 0.02      $ 0.04      $ 0.05      $ 0.06        $ 0.04 
Distributions to shareholders from: 
Net investment income                     (0.02)      (0.02)      (0.02)      (0.04)      (0.05)      (0.06)        (0.04) 
Net increase in net asset value         $  0.00      $ 0.00      $ 0.00      $ 0.00      $ 0.00      $ 0.00        $ 0.00 
Net asset value, end of period          $  1.00      $ 1.00      $ 1.00      $ 1.00      $ 1.00      $ 1.00        $ 1.00 
Total return*                              2.40%       1.92%       2.38%       4.00%       5.48%       6.06%         3.71% 
Ratio of net operating expenses to 
  average net assets                       0.50%       0.50%       0.50%       0.50%       0.50%       0.50%         4.98%** 
Ratio of net investment income to 
  average net assets                       2.34%       1.92%       2.33%       3.91%       5.37%       5.86%         5.13%** 
Net assets end of period (in 
  thousands)                            $10,059      $8,114      $7,241      $7,539      $6,968      $5,351        $3,272 
Ratios assuming no reduction of 
  fees or expenses: 
Net operating expenses                     1.87%       1.85%       2.07%       1.08%       1.91%       2.27%         1.50% 
Net investment income                      0.97%       0.57%       0.77%       4.81%       3.96%       4.09%         4.13%** 
</TABLE>
    

   
 * Assumes initial investment at net asset value at the beginning of each 
period, reinvestment of all dividends and distributions, and the complete 
redemption of the investment at the net asset value at the end of each period. 
** Annualized. 
    

   
III. THE TRUST 
    

   
Pioneer Cash Reserves Fund, Pioneer U.S. Government Money Fund and Pioneer 
Tax-Free Money Fund are series of Pioneer Money Market Trust (the "Trust"), an 
open-end, management investment company (commonly referred to as a mutual fund) 
organized as a Massachusetts business trust on March 31, 1987 and reorganized 
as a Delaware business trust on March 30, 1995. The Trust has authorized an 
unlimited number of shares, which are currently organized into these three 
series, and continuously offers its shares to the public. Under normal 
conditions, each Trust must redeem shares upon the demand of any shareholder. 
The Trustees have the authority, without shareholder approval, to classify and 
reclassify the shares of the Funds or any new series of the Trust. As of the 
date of this Prospectus, the Trustees have authorized the issuance of a single 
class of shares for Pioneer U.S. Government Money Fund and Pioneer Tax- Exempt 
Money Fund, designated Class A, and, for Pioneer Cash Reserves Fund only, two 
classes of shares, designated Class A and Class B. 
    

IV. THREE INVESTMENT PROGRAMS 

The investment objective of Pioneer Cash Reserves Fund, Pioneer U.S. Government 
Money Fund and Pioneer Tax-Free Money Fund is to provide high current income, 
preservation of capital and liquidity through investments in high-quality 
short-term securities. 

Each of the three Funds seeks to maintain a constant net asset value of $1.00 
per share by investing in a portfolio of money market instruments maturing 
within 397 days and with a dollar-weighted average maturity of 90 days or less. 

   
There can be no guarantee that the Funds will achieve their investment 
objective or that they will be able to maintain constant $1.00 net asset values 
per share. 
    

Suitability 

The Funds are designed to provide a convenient way for individual, corporate 
and institutional investors to earn income on their cash reserves, with easy 
access to their money and stable principal value. 

Ownership of shares of the Funds also eliminates the bookkeeping and 
administrative inconvenience of purchasing money market securities directly. 

Investment Policies 

Pioneer Cash Reserves Fund invests in the following types of high-quality, 
money market instruments: 

(1) U.S. Government Obligations: Marketable obligations issued or guaranteed by 
the U.S. Government or any agency or instrumentality thereof. 

(2) Bank Obligations: Obligations (including certificates of deposit and 
bankers' acceptances) of U.S. banks (including their foreign branches) and 
savings and loan associations which at the date of their latest public 
reporting had total assets in excess of $1 billion, and obligations of certain 
smaller banks and savings and loan institutions satisfying specified investment 
criteria (see the Statement of Additional Information for further details). 

(3) Commercial Paper: Commercial paper (short-term unsecured promissory notes 
of corporations, including variable amount master demand notes) which at the 
date of investment is rated A-1 by Standard & Poor's Ratings Group ("S&P") or 
P-1 by Moody's Investors Service, Inc. ("Moody's"), or, if not rated, is issued 
by companies having outstanding debt rated AAA or AA by S&P or Aaa or Aa by 
Moody's. For further information concerning these fixed and variable rate 
securities, see the description of Pioneer Tax- Free Money Fund's investment 
policies below. 

(4) Short-term Corporate Debt Securities: Corporate debt securities (bonds and 
debentures) with no more than 397 days remaining to maturity at date of 
settlement and rated AAA or AA by S&P or Aaa or Aa by Moody's. 

   
Pioneer U.S. Government Money Fund invests exclusively in obligations issued by 
or guaranteed as to principal and interest by the U.S. government or any of its 
agencies or instrumen 
    


                                        4 
<PAGE>
 
   
talities and in repurchase agreements secured by these obligations. The 
government securities in which the Fund invests may or may not be backed by the 
full faith and credit of the U.S. government. U.S. Treasury notes, bills, 
certificates of indebtedness and bonds, and certain obligations issued by 
government- sponsored agencies and enterprises acting under the authority of 
Congress, are backed by the full faith and credit of the U.S. government. Such 
obligations include, but are not limited to, obligations issued by the 
Government National Mortgage Association, the Farmers' Home Administration and 
the Small Business Administration. The Fund may also invest in securities 
issued by government agencies or instrumentalities (such as executive 
departments of the government or independent federal organizations supervised 
by Congress) which are supported by the right of the issuer to borrow from the 
U.S. Treasury or by the credit of the agency, authority or instrumentality 
itself. Such obligations include, but are not limited to, obligations issued by 
the Tennessee Valley Authority, the Bank for Cooperatives, Federal Home Loan 
Banks, Federal Intermediate Credit Banks and Federal Land Banks. The Fund may 
also invest in obligations backed solely by the credit of the issuing agency 
itself. There is no guarantee that the U.S. government would support such 
securities and, accordingly, they may involve a risk of nonpayment of principal 
and interest. 
    

   
While the Fund may invest in any of the obligations described above, the Fund 
generally intends, under normal circumstances and to the extent practicable, to 
limit its investments to certain U.S. government obligations the interest on 
which is generally exempt from state income taxes in order to increase the 
percentage of the Fund's distributions attributable to such interest and 
therefore exempt from such taxes in most states. 
    

   
Pioneer Tax-Free Money Fund invests under normal conditions at least 80% of its 
portfolio in debt securities issued by or on behalf of states, territories and 
possessions of the United States and the District of Columbia and their 
political subdivisions, agencies or instrumentalities, the interest on which is 
exempt from federal income tax (hereafter called "tax- exempt securities"). The 
Fund's investments are limited to: 
    

   
(1) Tax-exempt securities, including (i) municipal bonds which are rated AAA or 
AA by S&P or Aaa or Aa by Moody's, 
(ii) tax anticipation notes, revenue anticipation notes and bond anticipation 
notes, which are rated SP-1+ or SP-1 by S&P or MIG-1 or MIG-2 by Moody's and 
(iii) tax-exempt commercial paper rated A-1 by S&P or P-1 by Moody's; 
    

   
(2) Tax-exempt securities that are not rated but that, in the opinion of PMC, 
are of at least comparable quality to the two highest grades of S&P or Moody's; 
and 
    

   
(3) Taxable obligations issued or guaranteed by the U.S. government or its 
agencies or instrumentalities or taxable commercial paper rated A-1 or P-1. 
    

The Fund may purchase tax-exempt securities carrying fixed rates of return or 
having floating or variable interest rates. Floating and variable rate 
obligations are generally more stable than fixed-rate obligations because their 
value is less affected by changes in interest rate levels. The Fund's 
investments may include certificates of participation, which are a type of 
floating or variable rate obligation representing interests in a pool of 
tax-exempt securities held by a bank or other financial institution. 

In order to enhance the liquidity, stability or quality of a tax- exempt 
security or to shorten its maturity, the Fund may acquire a right to sell the 
obligation to another party at a guaranteed price approximating par value, 
either on demand or at specified intervals. The right to sell may form part of 
the obligation or be acquired separately by the Fund. These rights may be 
referred to as demand features or standby commitments, depending on their 
characteristics, and may involve letters of credit or other credit support 
arrangements supplied by domestic or foreign banks supporting the other party's 
ability to purchase the obligation from the Fund. In considering whether an 
obligation meets the Fund's quality standards, the Fund may look to the 
creditworthiness of the party providing the right to sell or to the quality of 
the obligation itself. Letters of credit issued by foreign banks (for which 
there may be less public information available) may involve certain risks such 
as future unfavorable political and economic developments, currency controls or 
other governmental restrictions which might affect payment by the bank. See the 
Statement of Additional Information for further description of these risks. 

   
The Fund intends to minimize the distribution of taxable income to 
shareholders. Thus, the Fund's investments in taxable obligations are limited 
to 20% of its assets and are intended only to meet short-term liquidity needs 
during periods of unusually adverse market conditions. For a description of how 
to compare yields on tax-exempt securities with yields on taxable securities, 
see the Appendix to this Prospectus. Dividends distributed to shareholders 
attributable to income or net gains from the sale of taxable and tax-exempt 
securities will generally be taxable to shareholders as ordinary income. See 
"Dividends, Distributions and Tax Status." However, the Fund has no intention 
of investing in "private activity bonds" or other tax-exempt securities whose 
interest is treated as a tax preference item resulting in tax liability to 
shareholders subject to the alternative minimum tax. 
    

Pioneer Tax-Free Money Fund may also purchase some tax- exempt securities on a 
"when-issued" basis, which means that up to 60 days may pass before they are 
delivered and paid for. The commitment to purchase a security for which payment 
will be made at a future date may be deemed a separate security. The purchase 
price and interest rate of "when-issued" securities is fixed at the time the 
commitment to purchase is made. Although the amount of tax-exempt securities 
for which there may be purchase commitments on a "when-issued" basis is not 
limited, it is expected that under normal circumstances not more than 10% of 
the total assets of the Fund will be committed to such purchases. The Fund does 
not start earning interest on "when-issued" securities until settlement is 
made. In order to invest the assets of the Fund immediately while awaiting 
delivery of securities purchased on a "when-issued" basis, short- term 
obligations that offer same-day settlement and earnings will normally be 
purchased. Although short-term investments will normally be in tax-exempt 
securities, short-term taxable securities may be purchased if suitable 
short-term tax-exempt securities are not available. 

When a commitment to purchase a security on a "when- issued" basis is made, 
procedures are established consistent with the General Statement of Policy of 
the SEC concerning such purchases. Because that policy currently recommends 
that an amount of the Fund's assets equal to the amount of the purchase be held 
aside or segregated to be used 

                                        5 
<PAGE>
 
to pay for the commitment, cash or high-quality debt securities sufficient to 
cover any commitments are always expected to be available. However, although it 
is not intended that such purchases would be made for speculative purposes, and 
although the Fund intends to adhere to the provisions of the SEC policy, 
purchases of securities on a "when-issued" basis may involve more risk than 
other types of purchases. For example, when the time comes to pay for a 
"when-issued" security, portfolio securities of the Fund may have to be sold in 
order for the Fund to meet its payment obligations, and a sale of securities to 
meet such obligations carries with it a greater potential for the realization 
of capital gain, which is not tax-exempt. Also, if it is necessary to sell the 
"when-issued" security before delivery, the Fund may incur a loss because of 
market fluctuations since the time the commitment to purchase the "when-issued" 
security was made. Moreover, any gain resulting from any such sale would not be 
tax-exempt. Additionally, because of market fluctuations between the time of 
commitment to purchase and the date of purchase, the "when-issued" security may 
have a lesser (or greater) value at the time of purchase than the Fund's 
payment obligations with respect to the security. 

Additional Information 

In addition to the foregoing policies each Fund is subject to certain 
regulatory requirements. Each Fund may purchase only securities that PMC 
believes present minimal credit risks and that are rated by the major rating 
agencies, such as S&P and Moody's, within the two highest rating categories for 
short-term debt obligations or, if unrated, are determined to be of equivalent 
quality by PMC. If a security has been assigned different ratings by different 
rating agencies, at least two rating agencies must have assigned the highest 
rating in order for PMC to rely on that highest rating. 

   
Pioneer Cash Reserves Fund may not invest more than 5% of its total assets 
(taken at amortized cost) in securities issued by or subject to puts from any 
one issuer (except U.S. Government Securities and repurchase agreements 
collateralized by such securities). With respect to 75% of its total assets, 
Pioneer Tax-Free Money Fund may not invest more than 5% of its assets in 
securities subject to puts from the same institution. Pioneer Cash Reserves 
Fund and Pioneer U.S. Government Money Fund will not invest more than 5% of 
their respective total assets in securities that, although of high quality, 
have not been rated in the highest short-term rating category by at least two 
rating agencies (or if rated by only one rating agency, by that rating agency 
or, if unrated, determined to be of equivalent quality by PMC), provided that 
within this 5% limitation, neither Fund will invest more than the greater of 1% 
or $1 million of its total assets in the securities (other than U.S. Government 
securities) of any one issuer. 
    

   
Each of the Funds may enter into repurchase agreements with approved banks and 
broker-dealers for periods not to exceed seven days and only with respect to 
U.S. government securities that throughout the period have a value at least 
equal to the amount of the loan (including accrued interest). However, Pioneer 
U.S. Government Money Fund does not intend to engage in repurchase agreements 
as long as the income from such agreements continues to be generally subject to 
state income taxes. 
    

The Funds will not invest more than 25% of their assets in any one industry, 
except that there is no percentage limitation on investments in bank 
obligations or U.S. Government obligations. 

The Funds intend to hold their investments until maturity, but may sell them 
prior to maturity for a number of reasons, including: to shorten or lengthen 
the average maturity; to increase the yield; to maintain the quality of the 
portfolio; or to maintain a stable share value. 

   
It is the policy of the Funds not to engage in trading for short-term profits. 
The Funds will engage in portfolio trading if PMC believes that a transaction 
net of costs (including custodian's fees) will contribute to the achievement of 
the Trust's investment objective. 
    

The Funds have no present plans to change their policies with regard to the 
types or maturities of securities in which they invest. However, if the Funds 
determine that their investment objective can best be achieved by a change in 
investment policy or strategy, the Funds may make such changes without 
shareholder approval by disclosing them in the Prospectus. The Funds' 
investment objective may not be changed without shareholder approval. 

   
The investment characteristics of U.S. government obligations, bank 
obligations, commercial paper, repurchase agreements and tax-exempt securities 
are described in greater detail in the Appendix to this Prospectus. The 
Statement of Additional Information also provides more information on the above 
investment strategies, as well as information on additional investment 
restrictions, including those which may not be changed without shareholder 
approval. 
    

   
V. FUND SHARE ALTERNATIVES 
    

   
Pioneer U.S. Government Money and Pioneer Tax-Free Money Fund offer only one 
Class of shares, designated as Class A shares. Pioneer Cash Reserves Fund, 
however, continuously offers two Classes of shares designated as Class A and 
Class B shares. If you do not specify in your instructions to the Fund which 
Class of shares you wish to purchase, exchange or redeem, the Fund will assume 
that your instructions apply to Class A shares. See "How to Buy Fund Shares" 
for more information on classes of shares. 
    

Class A Shares. Class A shares are offered by each Fund. Class A shares may be 
purchased at net asset value without a sales charge or commission and are 
subject to distribution and service fees at a combined annual rate of up to 
0.15% of the Fund's average daily net assets attributable to Class A shares. 

   
Class B Shares. Class B shares are offered by Pioneer Cash Reserves Fund only. 
If your investment in Pioneer Cash Reserves Fund is for the long-term, Class A 
shares may be more appropriate than Class B shares. Purchases of the Class B 
shares of Pioneer Cash Reserves Fund may be appropriate if you plan to exchange 
these shares for the Class B shares of another Pioneer mutual fund (except 
Pioneer Short-Term Income Trust or Pioneer Intermediate Tax- Free Fund, which 
have lower CDSCs for their Class B shares). Please consult your investment 
representative. 
    

   
Class B shares are sold without an initial sales charge, but are subject to a 
contingent deferred sales charge ("CDSC") of up to 4% if redeemed within six 
years. Class B shares are 


                                        6 
<PAGE>
 

subject to distribution and service fees at a combined annual rate of 1.00% of 
the Fund's average daily net assets attributable to Class B shares. Your entire 
investment in Class B shares is available to work for you from the time you 
make your investment, but the higher distribution fee paid by Class B shares 
will cause your Class B shares (until conversion) to have a higher expense 
ratio and to pay lower dividends, to the extent dividends are paid, than Class 
A shares. Class B shares will automatically convert to Class A shares, based on 
relative net asset value, eight years after the initial purchase. 
    

   
Investment dealers or their representatives may receive different compensation 
depending on which Class of shares they sell. Shares may be exchanged only for 
shares of the same Class of another Pioneer fund and shares acquired in the 
exchange will continue to be subject to any CDSC applicable to the shares of 
the Fund originally purchased. Shares sold outside the U.S. to persons who are 
not U.S. citizens may be subject to different sales charges, CDSCs and dealer 
compensation arrangements in accordance with local laws and business practices. 
    

   
VI. SHARE PRICE 
    

   
The purchase and redemption price of each Fund's shares is equal to the net 
asset value ("NAV") per share. The NAV per share of a Class of a Fund is 
determined by dividing the value of its assets, less liabilities (expenses and 
fees are accrued daily) attributable to that Class, by the number of shares of 
that Class outstanding. Each Fund's NAV is computed once daily, on each day the 
New York Stock Exchange (the "Exchange") is open, as of the close of regular 
trading on the Exchange. 
    

   
Securities are valued at amortized cost. Under the amortized cost pricing 
method, a portfolio investment is valued at its cost and, thereafter, any 
discount or premium is amortized to maturity, regardless of the impact of 
fluctuating interest rates on the market value of the investment. Amortized 
cost pricing facilitates the maintenance of a $1.00 constant net asset value 
per share, but, of course, this cannot be guaranteed. All assets of each Fund 
for which there is no other readily available valuation method are valued at 
their fair value as determined in good faith by the Trustees. 
    

   
VII. HOW TO BUY FUND SHARES 
    

   
You may buy Fund shares through broker-dealers who have selling agreements with 
the Trust's distributor, Pioneer Funds Distributor, Inc. (" PFD"). Class A 
shares may also be purchased directly from PFD. Call Pioneering Services 
Company ("PSC") at 1-800-225-6292 if you need assistance. 
    

   
The minimum initial investment is $1,000 for Class A and Class B shares except 
as specified below. The minimum initial investment is $50 for Class A accounts 
being established to utilize monthly bank drafts, government allotments, 
payroll deduction and other similar automatic investment plans. Separate 
minimum investment requirements apply to retirement plans and to telephone and 
wire orders placed by broker- dealers; no sales charges or minimum requirements 
apply to the reinvestment of dividends or capital gains distributions. 
    

   
The minimum subsequent investment is $100 for Class A shares and $500 for Class 
B shares except that the subsequent minimum investment amount for Class B share 
accounts may be as little as $100 if an automatic investment plan is 
established (see "Automatic Investment Plans"). 
    

   
Dividends on Purchases. Each Fund seeks to be fully invested at all times in 
order to accrue dividends to your account each day. To be eligible for each 
day's dividend accrual, each direct purchase of shares in the Funds must be 
converted to same day funds. Same day funds are monies credited to State Street 
Bank and Trust Company's ("State Street Bank") account with the Federal Reserve 
Bank of Boston. When payment in same day funds is available to the Trust before 
the close of the Exchange, the Trust will accept the order to purchase shares 
that day. 
    

   
Making Your Investment 
    

   
All purchases of Class B shares, except exchanges from other Pioneer mutual 
funds, can only be processed through broker-dealers who have selling agreements 
with PFD. 
    

   
By Mail. (Class A shares only) Send your check or negotiable bank draft, drawn 
on a U.S. bank and payable in U.S. dollars to the Fund in which you would like 
to purchase shares, to PSC at the above address. Cash will not be accepted. 
Your payment should be accompanied by a completed new account application or 
other instructions indicating your account number. 
    

If you pay by check or draft, State Street Bank will normally make same day 
funds available to the Trust, and the Trust will accept the order, on the first 
business day after receipt. Checks drawn on some other banks may take more than 
one day to be collected and share purchases will not be made until same day 
funds are available to the Trust. 

   
By Wire. (Class A shares only) When you wish to wire money to an existing 
Pioneer account, call PSC at 1-800-255- 6292 to obtain complete instructions. 
You will be asked to instruct your bank to transmit same day funds by wire 
through the Federal Reserve banking system. The wiring instructions must 
include the following information: 
    

Receiving Bank                  State Street Bank and Trust Company 
  Address                       225 Franklin Street 
                                Boston MA 02101 
ABA Transit                     011000028 
For Further Credit To           Shareholder Name 
                                Existing Pioneer Account # 
                                Name of Pioneer Fund 

   
Wired funds received by State Street Bank by 4:00 p.m., Eastern time, are 
normally accepted for investment on the day received. Investors whose payments 
are received by the Trust's Custodian in federal funds by 12:00 noon Eastern 
Time, will receive the dividend declared that day. Investors whose payments are 
received by the Trust's Custodian in federal funds after 12:00 noon Eastern 
Time, will begin to accrue dividends on the following business day. Federal 
funds directed to the Custodian must be pre-approved by calling PSC at 
1-800-255-6292. To be sure that a bank wire is accepted on the same day it is 
sent, you should give the Trust notice of your intention to make such 
investment as early in the day as possible since the process of making a wire 
transfer may take several hours and may be affected by your bank's internal 
procedures concerning wire transfers. Your bank may charge for sending same day 
funds on your behalf. State Street Bank presently does not charge for receipt 
of wired same day funds, but reserves the right to charge for this service in 
the future. 
    

                                        7 
<PAGE>
 
   
Selecting a Class of Shares 
    

   
Class A Shares. Each Fund offers Class A shares at net asset value without the 
imposition of an initial sales charge by mail or by wire as described above. 
    

   
Class B Shares. Class B shares are offered only by Pioneer Cash Reserves Fund. 
You may buy Class B shares at net asset value without the imposition of an 
initial sales charge; however, Class B shares redeemed within six years of 
purchase will be subject to a CDSC at the rates shown in the table below. The 
charge will be assessed on the amount equal to the lesser of the current market 
value or the original purchase cost of the shares being redeemed. No CDSC will 
be imposed on increases in account value above the initial purchase price, 
including shares derived from the reinvestment of dividends or capital gains 
distributions. The amount of the CDSC, if any, will vary depending on the 
number of years from the time of purchase until the time of redemption of Class 
B shares. For the purpose of determining the number of years from the time of 
any purchase, all payments during a quarter will be aggregated and deemed to 
have been made on the first day of that quarter. In processing redemptions of 
Class B shares, the Fund will first redeem shares not subject to any CDSC, and 
then shares held longest during the six-year period. As a result, you will pay 
the lowest possible CDSC. 

                                  CDSC as a Percentage of Dollar 
Year Since Purchase                   Amount Subject to CDSC 
First.                                          4.0% 
Second                                          4.0% 
Third                                           3.0% 
Fourth                                          3.0% 
Fifth                                           2.0% 
Sixth                                           1.0% 
Seventh and thereafter                         none 
    

   
Class B shares will automatically convert into Class A shares at the end of the 
calendar quarter that is eight years after the purchase date, except as noted 
below. Class B shares acquired by exchange from Class B shares of another 
Pioneer fund will convert into Class A shares based on the date of the initial 
purchase and will be subject to the CDSC applicable to the shares of the fund 
originally purchased. Class B shares acquired through reinvestment of 
distributions will convert into Class A shares based on the date of the initial 
purchase to which such shares relate. For this purpose, Class B shares acquired 
through reinvestment of distributions will be attributed to particular 
purchases of Class B shares in accordance with such procedures as the Trustees 
may determine from time to time. The conversion of Class B shares to Class A 
shares is subject to the continuing availability of a ruling from the Internal 
Revenue Service, which the Fund has obtained, or an opinion of counsel that 
such conversions will not constitute taxable events for federal tax purposes. 
There can be no assurance that such ruling will continue to be in effect at the 
time any particular conversion would occur. The conversion of Class B shares to 
Class A shares will not occur if such ruling is no longer available and, 
therefore, Class B shares would continue to be subject to higher expenses than 
Class A shares for an indeterminate period. 
    

   
Waiver or Reduction of Contingent Deferred Sales Charge. The CDSC on Class B 
shares and on any Class A shares subject to a CDSC may be waived or reduced for 
non- retirement account if: (a) the redemption results from the death of all 
registered owners of an account (in the case of UGMAs, UTMAs and trust 
accounts, waiver applies upon the death of all beneficial owners) or a total 
and permanent disability (as defined in Section 72 of the Code) of all 
registered owners occurring after the purchase of the shares being redeemed or 
(b) the redemption is made in connection with limited automatic redemptions as 
set forth in "Systematic Withdrawal Plans" (limited in any year to 10% of the 
value of the account in the Fund at the time the withdrawal plan is 
established). 
    

   
The CDSC on Class B shares and on any Class A shares subject to a CDSC may be 
waived or reduced for retirement plan accounts if: (a) the redemption results 
from the death or a total and permanent disability as defined in Section 72 of 
the Internal Revenue Code of 1986, as amended (the "Code"), occurring after the 
purchase of the shares being redeemed of a shareholder or participant in an 
employer-sponsored retirement plan; (b) the distribution is to a participant in 
an IRA, 403(b) or employer-sponsored retirement plan, is part of a series of 
substantially equal payments made over the life expectancy of the participant 
or the joint life expectancy of the participant and his or her beneficiary or 
as scheduled periodic payments to a participant (limited in any year to 10% of 
the value of the participant's account at the time the distribution amount is 
established; a required minimum distribution due to the participant's 
attainment of age 70-1/2 may exceed the 10% limit only if the distribution 
amount is based on plan assets held by Pioneer); (c) the distribution is from a 
401(a) or 401(k) retirement plan and is a return of excess employee deferrals 
or employee contributions or a qualifying hardship distribution as defined by 
the Code or results from a termination of employment (limited with respect to a 
termination to 10% per year of the value of the plan's assets in the Fund as of 
the later of the prior December 31 or the date the account was established 
unless the plan's assets are being rolled over to or reinvested in the same 
class of shares of a Pioneer mutual fund subject to the CDSC of the shares 
originally held); (d) the distribution is from an IRA, 403(b) or 
employer-sponsored retirement plan and is to be rolled over to or reinvested in 
the same class of shares in a Pioneer mutual fund and which will be subject to 
the applicable CDSC upon redemption; (e) the distribution is in the form of a 
loan to a participant in a plan which permits loans (each repayment of the loan 
will constitute a new sale which will be subject to the applicable CDSC upon 
redemption); or (f) the distribution is from a qualified defined contribution 
plan and represents a participant's directed transfer (provided that this 
privilege has been pre-authorized through a prior agreement with PFD regarding 
participant directed transfers). 
    

   
The CDSC on Class B shares and on any Class A shares subject to a CDSC may be 
waived or reduced for either non- retirement or retirement plan accounts if: 
(a) the redemption is made by any state, county, or city, or any 
instrumentality, department, authority, or agency thereof, which is prohibited 
by applicable laws from paying a CDSC in connection with the acquisition of 
shares of any registered investment company; or (b) the redemption is made 
pursuant to each Fund's right to liquidate or involuntarily redeem shares in a 
shareholder's account. 
    

                                        8 
<PAGE>
 
   
Broker-Dealers. Pioneer Cash Reserve Fund's Class B shares may only be 
purchased through a securities broker or dealer. You may purchase Class A 
shares of any Fund in the Trust through a securities broker or dealer or 
directly from PFD. A broker or dealer may charge for this service. If you do 
not have a securities broker or dealer, PSC can refer you to one. 
    

An order for either Class of Fund shares received by PFD from a broker-dealer 
prior to the close of regular trading on the Exchange is confirmed at the price 
appropriate for that Class as determined at the close of regular trading on the 
Exchange on the day the order is received, provided the order is received prior 
to PFD's close of business (usually, 5:30 p.m. Eastern Time). It is the 
responsibility of broker-dealers to transmit orders so that they will be 
received by PFD prior to its close of business. 

General. The Fund reserves the right in its sole discretion to withdraw all or 
any part of the offering of shares when, in the judgment of the Fund's 
management, such withdrawal is in the best interest of the Fund. An order to 
purchase shares is not binding on, and may be rejected by, PFD until it has 
been confirmed in writing by PFD and payment has been received. 

Conditions of Purchase. The Trust reserves the right to reject any purchase or 
exchange. If a purchase is canceled because your check is returned unpaid, you 
are responsible for any loss the Trust incurs and a separate charge may be made 
for any unpaid check. The Trust may redeem shares from your account(s) to cover 
these costs and charges and you may be restricted from making future purchases 
of shares of any of the Pioneer mutual funds. 

   
VIII. HOW TO SELL FUND SHARES 
    

   
You can arrange to sell (redeem) Fund shares on any day the Exchange is open by 
selling either some or all of your shares to the Fund by mail, by telephone, by 
facsimile ("fax"). Class A share accounts may also sell by check when properly 
authorized in advance. 
    

   
You may sell your shares either through your broker-dealer or directly to the 
Fund. Please note the following: 
* If you are selling shares from a retirement account, you must make your 
  request in writing (except for exchanges to other Pioneer mutual funds which 
  can be requested by phone or in writing). Call 1-800- 622-0176 for more 
  information. 
* If you are selling shares from a non-retirement account, you may use any of 
  the methods described below. 
    

   
Your shares will be sold at the share price next calculated (expected to be a 
constant $1.00) after your order is received and accepted, less any applicable 
CDSC. Subject to the limitation described above for shares purchased by check, 
sale proceeds are normally mailed or wired the next business day but in any 
event not later than seven days after your order is accepted. The Fund reserves 
the right to withhold payment of the sale proceeds until checks received by the 
Fund in payment for the shares being sold have cleared, which may take up to 15 
calendar days from the purchase date. 
    

   
By Check. (Class A Shares Only) If requested, each Fund will establish a 
checking account for a Class A shareholder(s) with The First National Bank of 
Omaha (the "First National Bank"). Please allow 1 to 2 weeks for receipt of 
your supply of personalized checks. Checks may be drawn for not less than $500 
nor more than $250,000, payable to anyone. When a check is presented to First 
National Bank for payment, it will cause the Fund to redeem at the net asset 
value next determined a sufficient number of the shareholder's shares to cover 
the check. A shareholder receives the daily dividends declared on his or her 
shares until the day the check clears. 
    

   
The checking account will be subject to First National Bank's rules and 
regulations governing checking accounts. If there is an insufficient number of 
shares in a shareholder's account when a check is presented to First National 
Bank for payment, the check will be returned. Since the aggregate value of a 
shareholder's account in each Fund changes each day because of the daily 
dividend, a shareholder should not attempt to withdraw the full amount in his 
or her account by using a check. The checkwriting privilege is not available 
for Class B share accounts. In addition, checkwriting is generally not 
available for retirement plan accounts or accounts subject to backup 
withholding (see "Dividends, Distributions and Tax Status" and "Voluntary Tax 
Withholding"). 
    

   
In Writing. You may sell your shares by delivering a written request signed by 
all registered owners and in good order to PSC, at P.O. Box 9014 Boston, MA 
02205-9014, however, you must use a written request, including a signature 
guarantee, to sell your shares if any of the following situations applies: 
 * you wish to sell over $50,000 worth of shares, 
 * your account registration or address has changed within the last 30 days, 
 * the check is not being mailed to the address on your account (address of 
   record), 
 * the check is not being made out to the account owners, or 
 * the sale proceeds are being transferred to a Pioneer account with a 
   different registration. 
    

   
Your request should include your name, the Fund's name, your fund account 
number, the Class of shares to be redeemed, the dollar amount or number of 
shares to be redeemed, and any other applicable requirements as described 
below. Unless instructed otherwise, Pioneer will send the proceeds of the sale 
to the address of record. Fiduciaries or corporations are required to submit 
additional documents. For more information, contact PSC at 1-800-225-6292. 
    

   
Written requests will not be accepted until they are received in good order by 
PSC. Good order means that there are no outstanding claims or requests to hold 
redemptions on the account, certificates are endorsed by the record owner(s) 
exactly as the shares are registered and the signature(s) are guaranteed by an 
eligible guarantor. You should be able to obtain a signature guarantee from a 
bank, broker, dealer, credit union (if authorized under state law), securities 
exchange or association, clearing agency or savings association. A notary 
public cannot provide a signature guarantee. Signature guarantees are not 
accepted by facsimile (fax). The Trust may waive the signature guarantee 
requirement for redemption requests of $50,000 or less provided that the 
    

                                        9 
<PAGE>
    
redemption proceeds are directed to the shareholder(s) of record at the address 
of record. 
    

   
By Telephone or by Fax. Your account is automatically authorized to have the 
telephone redemption privilege unless you indicated otherwise on your Account 
Application or by writing to the Fund. You may redeem up to $50,000 of your 
shares by telephone or fax and receive the proceeds by check or by wire. The 
redemption proceeds must be made payable exactly as the account is registered. 
To receive the proceeds by check: the check must be sent to the address of 
record which must not have changed in the last 30 days. To receive the proceeds 
by bank wire: the wire must be sent to your previously designated bank wire 
address of record which must have been properly pre-designated either on your 
Account Application or on an Account Options Form and which must not have 
changed in the last 30 days. To redeem by fax send your redemption request to 
1-800-225-4240. The telephone redemption option is not available to retirement 
plan accounts. You may always elect to deliver redemption instructions to PSC 
by mail. See "Telephone Transactions and Related Liabilities" below. Telephone 
and fax redemptions will be priced as described above. 
    

   
A redemption order received by telephone or fax in proper form by a Fund before 
4:00 p.m. Eastern Time on any business day becomes effective as of 4:00 p.m. 
that day, and shares so redeemed will receive that day's dividend. Proceeds of 
such a redemption will normally be mailed or wired the next business day. State 
Street Bank charges a fee for wiring funds; the fee will be deducted from the 
amount redeemed 
    

   
Selling Shares Through Your Broker-Dealer. The Fund has authorized PFD to act 
as its agent in the repurchase of shares of the Fund from qualified 
broker-dealers and reserves the right to terminate this procedure at any time. 
Your broker-dealer must receive your request before the close of business on 
the Exchange and transmit it to PFD before PFD's close of business to receive 
that day's redemption price. Your broker-dealer is responsible for providing 
all necessary documentation to PFD and may charge you for its services. 
    

Redemption Through Compatible Computer Facilities. Certain broker-dealers or 
other institutions may be able to redeem shares through compatible computer 
facilities. Contact PSC at 1-800-225-6292 to determine whether your computer 
facilities are compatible and to receive further instructions. The proceeds of 
redemption requests received through compatible computer facilities before 
12:00 noon Eastern Time will normally be transmitted in Federal Funds on the 
same day and those shares will not receive the dividend declared on that 
business day. 

   
Small Accounts. The minimum account value is $500. If you hold shares of a Fund 
in an account with a net asset value of less than the minimum required amount 
due to redemptions or exchanges, the Fund may redeem the shares held in this 
account at net asset value if you have not increased the net asset value of the 
account to at least the minimum required amount within six months of notice by 
the Fund to you of the Fund's intention to redeem the shares. 
    

   
General. The Trust and First National Bank each reserve the right at any time 
to terminate, suspend or change the terms of or impose fees on any redemption 
method described in this Prospectus, except redemption by mail. Redemptions may 
be suspended or payment postponed during any period in which any of the 
following conditions exist: the Exchange is closed or trading on the Exchange 
is restricted; an emergency exists as a result of which disposal by a Fund of 
securities owned by it is not reasonably practicable or it is not reasonably 
practicable for a Fund to fairly determine the value of the net assets of its 
portfolio; or the SEC, by order, so permits. 
    

   
IX. HOW TO EXCHANGE FUND SHARES 
    

Written Exchanges. You may exchange your shares by sending a letter of 
instruction to PSC. Your letter should include your name, the name of the Fund 
out of which you wish to exchange and the name of the Fund into which you wish 
to exchange, your fund account number(s), the Class of shares to be exchanged 
and the dollar amount or number of shares to be exchanged. Written exchange 
requests must be signed by all record owner(s) exactly as the shares are 
registered. 

   
Telephone Exchanges. Your account is automatically authorized to have the 
telephone exchange privilege unless you indicated otherwise on your Account 
Application or by writing to the Fund. Proper account identification will be 
required for each telephone exchange. Telephone exchanges may not exceed 
$500,000 per account per day. All telephone exchange requests will be recorded. 
See "Telephone Transactions and Related Liabilities" below. 
    

   
Automatic Exchanges. You may automatically exchange shares from one Pioneer 
account for shares of the same Class in another Pioneer account on a monthly or 
quarterly basis. The accounts must have identical registrations and the 
originating account must have a minimum balance of $5,000. The exchange will be 
effective on the 18th day of the month. 
    

   
General. Exchanges must be at least $1,000. Shares of any of the Funds in the 
Trust acquired through an exchange from another Pioneer mutual fund or through 
reinvestment of dividends or capital gains distributions, may be exchanged at 
net asset value for the same class of shares in any other Pioneer mutual fund. 
Shares of any Fund of the Trust acquired by direct purchase may be exchanged 
for the same class of any other Pioneer mutual fund at net asset value plus any 
applicable sales charge. Not all Pioneer funds offer more than one Class of 
shares. A new Pioneer account opened through an exchange must have a 
registration identical to that on the original account. 
    

   
Class A or Class B shares which would normally be subject to a CDSC upon 
redemption will not be charged the applicable CDSC at the time of an exchange. 
Shares acquired in an exchange will be subject to the CDSC of the shares 
originally held. For purposes of determining the amount of any applicable CDSC, 
the length of time you have owned the shares acquired by exchange will be 
measured from the date you acquired the original shares and will not be 
affected by any subsequent exchange. 
    

   
Exchange requests received by PSC before 4:00 p.m. Eastern Time will be 
effective on that day if the requirements above have been met, otherwise, they 
will be effective on the next business day. PSC will process exchanges only 
after 
    

                                       10 
<PAGE>
 
   
receiving an exchange request in good order. There are currently no fees or 
sales charges, other than those described above, imposed at the time of an 
exchange. An exchange of shares may be made only in states where legally 
permitted. For federal and (generally) state income tax purposes, an exchange 
is considered to be a sale of the shares of the Fund exchanged and a purchase 
of shares in another fund. Therefore, an exchange could result in a gain or 
loss on the shares sold, depending on the tax basis of these shares and the 
timing of the transaction, and special tax rules may apply. Shareholders will 
be given 60 days notice prior to any termination or change which materially 
limits the existing exchange privilege. 
    

   
You should consider the differences in objectives and policies of the Pioneer 
mutual funds, as described in each fund's current prospectus, before making any 
exchange. To prevent abuse of the exchange privilege to the detriment of other 
Fund shareholders, the Trust and PFD reserve the right to limit the number 
and/or frequency of exchanges and/or to charge a fee for exchanges. The 
exchange privilege may be changed or discontinued and may be subject to 
additional limitations, including certain restrictions on purchases by market 
timer accounts. 
    

   
X. DISTRIBUTION PLANS 
    

   
The Trust, on behalf of the Funds, has adopted a Plan of Distribution for Class 
A shares ("Class A Plan") and, on behalf of Pioneer Cash Reserves Fund, for 
Class B shares ("Class B Plan") in accordance with Rule 12b-1 under the 
Investment Company Act of 1940, as amended (the "1940 Act"), pursuant to which 
certain distribution and service fees are paid. 
    

   
Pursuant to the Class A Plan, the Fund reimburses PFD its actual expenditures 
to finance any activity primarily intended to result in the sale of Class A 
shares or to provide services to holders of Class A shares, provided the 
categories of expenses for which reimbursement is made are approved by the 
Fund's Board of Trustees. As of the date of this Prospectus, the Board of 
Trustees has approved the following categories of expenses for Class A shares 
of the Fund: (i) a service fee to be paid to qualified broker-dealers in an 
amount not to exceed 0.15% per annum of the Fund's daily net assets 
attributable to Class A shares and (ii) reimbursement to PFD for expenses 
incurred in providing services to Class A shareholders and supporting 
broker-dealers and other organizations (such as banks and trust companies) in 
their efforts to provide such services. Banks are currently prohibited under 
the Glass-Steagall Act from providing certain underwriting or distribution 
services. If a bank was prohibited from acting in any capacity or providing any 
of the described services, management would consider what action, if any, would 
be appropriate. 
    

Expenditures of the Fund pursuant to the Class A Plan are accrued daily and may 
not exceed 0.15% of the Fund's average daily net assets attributable to Class A 
shares. Distribution expenses of PFD are expected to substantially exceed the 
distribution fees paid by the Fund in a given year. The Class A Plan may not be 
amended to increase materially the annual percentage limitation of average net 
assets which may be spent for the services described therein without approval 
of the shareholders of the Fund. 

   
The Class B Plan provides that the Fund will pay a distribution fee at the 
annual rate of 0.75% of the Fund's average daily net assets attributable to 
Class B shares and will pay PFD a service fee at the annual rate of 0.25% of 
the Fund's average daily net assets attributable to Class B shares. The 
distribution fee is intended to compensate PFD for its distribution services to 
the Fund. The service fee is intended to be additional compensation for 
personal services and/or account maintenance services with respect to Class B 
shares. PFD also receives the proceeds of any CDSC imposed on the redemption of 
Class B shares. 
    

   
Commissions of 4%, equal to 3.75% of the amount invested and a first year's 
service fee equal to 0.25% of the amount invested in Class B shares, are paid 
to broker- dealers who have selling agreements with PFD. PFD may advance to 
dealers the first year service fee at a rate up to 0.25% of the purchase price 
of such shares and, as compensation therefore, PFD may retain the service fee 
paid by the Fund with respect to such shares for the first year after purchase. 
Dealers will become eligible for additional service fees with respect to such 
shares commencing in the 13th month following the purchase. Dealers may from 
time to time be required to meet certain criteria in order to receive service 
fees. PFD or its affiliates are entitled to retain all service fees payable 
under the Class B Plan for which there is no dealer of record or for which 
qualification standards have not been met as partial consideration for personal 
services and/or account maintenance services performed by PFD or its affiliates 
for shareholder accounts. 
    

   
XI. DIVIDENDS, DISTRIBUTIONS AND TAXATION 
    

   
Each Fund of the Trust has elected to be treated, has qualified and intends to 
qualify each year as a "regulated investment company" under Subchapter M of the 
Code so that it will not pay federal income taxes on income and capital gains 
distributed to shareholders at least annually. Under the Code, a Fund will be 
subject to a nondeductible 4% federal excise tax on a portion of its 
undistributed ordinary income and capital gains if it fails to meet certain 
distribution requirements with respect to each calendar year. Each Fund intends 
to make distributions in a timely manner and accordingly does not expect to be 
subject to the excise tax. 
    

   
At 4:00 p.m. Eastern Time each business day, each Fund will declare 
substantially all of its net investment income (consisting of earned interest 
income less expenses) as a dividend to its shareholders of record. Shareholders 
begin earning dividends on the first business day after a Fund is credited with 
same day funds. However, investors whose payments are wired to and received by 
the Trust's Custodian in federal funds by 12:00 noon, Eastern Time, will 
receive the dividend declared that day. Shares redeemed continue to earn 
dividends up to and including the date of redemption. Unless you specify 
otherwise on your Account Application, all distributions will be automatically 
reinvested in additional full and fractional shares of the same class of the 
Fund in which you hold shares. 
    

Each month's distributions from net investment income will be paid on the last 
business day of the month. Short-term capital gains distributions, if any, may 
be paid with the daily dividend. For federal income tax purposes, all 
distributions will nor-

                                       11 
<PAGE>
 
   
mally be taxable to shareholders of Pioneer Cash Reserves Fund and Pioneer U.S. 
Government Money Fund as ordinary income, whether taken in cash or reinvested 
in shares. Dividends and capital gains distributions may also be made at such 
times as may be necessary to avoid federal income or excise tax under the Code. 
    

The Code permits tax-exempt interest received by Pioneer Tax-Free Money Fund to 
flow through as tax-exempt "exempt interest dividends" to the Fund's 
shareholders, provided that at least 50% of the value of the total assets of 
the Fund at the close of each quarter of its taxable year consists of 
tax-exempt obligations. Although Pioneer Tax-Free Money Fund does not intend to 
invest in private activity bonds or other tax-exempt securities generating 
interest that is treated as a tax preference item for individuals subject to 
the federal alternative minimum tax, all tax-exempt distributions of the Fund 
may affect a corporate shareholder's liability for such tax. Distributions of 
income from certain investment activities of Pioneer Tax-Free Money Fund, such 
as repurchase agreements, may be taxable. 

Interest on indebtedness incurred by a shareholder of Pioneer Tax-Free Money 
Fund to purchase or carry shares of the Fund will generally not be deductible 
for federal income tax purposes. The Fund may also not be an appropriate 
investment for persons who are "substantial users" of facilities financed by 
private activity bonds or persons related to substantial users. Shareholders 
receiving social security or certain railroad retirement benefits may be 
subject to federal income tax on a portion of such benefits as a result of 
receiving investment income, including exempt-interest dividends and other 
distributions paid by the Fund. 

While Pioneer Tax-Free Money Fund seeks to maximize the percentage of income 
distributed which is not subject to federal income taxes, it is possible that 
under certain circumstances (see "Investment Policies") a small portion of the 
income dividends paid by the Fund will be subject to federal income tax. 

   
Taxable dividends and other taxable distributions which are paid to individuals 
and other non-exempt payees will be subject to a 31% backup withholding of 
federal income tax if a Fund is not provided with the shareholder's correct 
taxpayer identification number and certification that the number is correct and 
that the shareholder is not subject to backup withholding or the Fund receives 
notice from the IRS or a broker that withholding applies. Please refer to the 
Account Application for additional information. 
    

   
The description above relates only to U.S. federal income tax consequences for 
shareholders who are U.S. persons, i.e., U.S. citizens or residents, or U.S. 
corporations, partnerships, estates and trusts and who are subject to U.S. 
federal income tax. In many states, the portion of the dividends paid by 
Pioneer U.S. Government Money Fund or Pioneer Cash Reserves Fund that is 
attributable to the interest received from certain U.S. Government obligations 
will be exempt from state income taxation. Further, in some states, exempt- 
interest dividends received from Pioneer Tax-Free Money Fund may be exempt from 
state income taxation to the extent such dividends are attributable to interest 
on obligations issued by the particular state or its political subdivisions, 
agencies of instrumentalities. In some cases, state income tax rules that apply 
to such distributions may condition either of these exemptions on certain 
concentration, designation, reporting or other requirements, and these Funds 
will not necessarily satisfy all such requirements in all states. Non-U.S. 
shareholders and tax-exempt shareholders are subject to different tax treatment 
that is not described above. You should consult your own tax adviser regarding 
applicable state, local and other tax laws. Information as to the federal tax 
status of distributions will be provided to shareholders annually. 
    

   
XII. MANAGEMENT OF THE TRUST 
    

   
The Trust's Board of Trustees has overall responsibility for management and 
supervision of the Funds. There are currently eight Trustees, six of whom are 
not "interested persons" of the Trust as defined in the 1940 Act. The Board 
meets at least quarterly. By virtue of the functions performed by PMC, the 
Trust requires no employees other than its executive officers, all of whom 
receive their compensation from PMC or other sources. The Statement of 
Additional Information contains the names and general background of each 
Trustee and executive officer of the Trust. 
    

The Trust is managed under a contract with PMC. PMC serves as investment 
adviser to the Trust and is responsible for the overall management of the 
Trust's business affairs, subject to the authority of the Board of Trustees. 
PMC is a wholly-owned subsidiary of The Pioneer Group, Inc. ("PGI"), a Delaware 
corporation. 

   
In addition to the three Funds that make up the Trust, PMC also manages and 
serves as the investment adviser for other mutual funds and is an investment 
adviser to certain other institutional accounts. PMC's and PGI's executive 
offices are located at 60 State Street, Boston, Massachusetts 02109. 
    

   
Under the terms of its contract with the Trust, PMC assists in the management 
of the Trust and is authorized in its discretion to buy and sell securities for 
the account of each Fund in the Trust. PMC pays all the expenses, including 
executive salaries and the rental of certain office space, related to its 
services for the Trust, with the exception of the following which are paid by 
the Trust: (a) charges and expenses for fund accounting, pricing and appraisal 
services and related overhead, including, to the extent such services are 
performed by personnel of PMC or its affiliates, office space and facilities 
and personnel compensation, training and benefits; (b) the charges and expenses 
of auditors; (c) the charges and expenses of any custodian, transfer agent, 
plan agent, dividend disbursing agent and registrar appointed by the Trust with 
respect to a Fund; (d) issue and transfer taxes, chargeable to a Fund in 
connection with securities transactions to which the Fund is a party; (e) 
insurance premiums, interest charges, dues and fees for membership in trade 
associations, and all taxes and corporate fees payable by a Fund to federal, 
state or other governmental agencies; (f) fees and expenses involved in 
registering and maintaining registrations of each Fund and/or its shares with 
the SEC, individual states or blue sky securities agencies, territories and 
foreign countries, including the preparation of Prospectuses and Statements of 
Additional Information for filing with the SEC; (g) all expenses of 
shareholders' and Trustees' meetings and of preparing, printing and 
distributing prospectuses, notices, proxy statements and all reports to 
shareholders and to governmental agencies; (h) charges and expenses of legal 
coun-
    

                                       12 
<PAGE>
 
   
sel to the Fund and the Trustees; (i) distribution fees paid by the Fund in 
accordance with Rule 12b-1 promulgated by the SEC pursuant to the 1940 Act; (j) 
compensation of those Trustees of the Trust who are not affiliated with or 
interested persons of PMC, the Trust (other than as Trustees), PGI or PFD; (k) 
the cost of preparing and printing share certificates; and (l) interest on 
borrowed money, if any. In addition to the expenses described above, the Trust 
shall pay all brokers' and underwriting commissions chargeable to the Trust in 
connection with securities transactions to which a Fund is a party. 
    

Orders for each Fund's portfolio securities transactions are placed by PMC, 
which strives to obtain the best price and execution for each transaction. In 
circumstances where two or more broker-dealers are in a position to offer 
comparable prices and execution, consideration may be given to whether the 
broker- dealer provides investment research or brokerage services or sells 
shares of the Trust or other Pioneer funds. See the Statement of Additional 
Information for a further description of PMC's brokerage allocation practices. 

As compensation for its management services and certain expenses which PMC 
incurs, PMC is entitled to a management fee equal to 0.40% per annum of each 
Fund's average daily net assets. The fee is normally computed daily and paid 
monthly. PMC has voluntarily and temporarily agreed to reduce its management 
fees for each Fund and to make other arrangements as may be necessary to keep 
such expenses below specified levels. See "Expense Information." 

   
During the fiscal year ended December 31, 1994, Pioneer Cash Reserves Fund, 
Pioneer U.S. Government Money Fund and Pioneer Tax-Free Money Fund incurred 
actual expenses of $1,117,021, $324,626 and $167,214, respectively, before 
management fees, paid or payable to PMC, and other expenses were reduced 
pursuant to PMC's voluntary expense limitation agreement in effect through 
December 31, 1994, as described further in the Statement of Additional 
Information. 
    

   
John F. Cogan, Jr., Chairman of the Board and President of the Trust and 
President and a Director of PGI and of PMC, owned approximately 15% of the 
outstanding capital stock of PGI as of January 31, 1995. PMC is a wholly-owned 
subsidiary of PGI. 
    

   
XIII. DESCRIPTION OF SHARES AND VOTING RIGHTS 
    

   
The shares of the Trust are divided into three series. Each share represents an 
equal proportionate interest in a Fund with each other share. The Trust 
reserves the right to create and issue additional series of shares in addition 
to the three Funds currently available. The shares of a series participate 
equally in the earnings, dividends and assets of the particular series, except 
to the extent the rights of a particular class of shares may differ from those 
of another class or classes. As of the date of this Prospectus, the Trustees 
have authorized the issuance of a single class of shares, designated Class A 
shares, for Pioneer U.S. Government Money and Pioneer Tax- Exempt Money Fund 
and two classes of shares, designated Class A and Class B, for Pioneer Cash 
Reserves Fund. The shares of each class represent an interest in the same 
portfolio of investments of the Fund. Each class has equal rights as to voting, 
redemption, dividends and liquidation, except that each class bears different 
distribution and transfer agent fees and may bear other expenses properly 
attributable to the particular class. Class A and Class B shareholders have 
exclusive voting rights with respect to the Rule 12b-1 distribution plans 
adopted by holders of those shares in connection with the distribution of 
shares. 
    

The Trust is not required, and does not intend, to hold annual shareholder 
meetings although special meetings may be called for the purpose of electing or 
removing Trustees, changing fundamental investment restrictions or approving a 
management contract. 

   
Generally, shares of each Fund will vote as a single series on matters that 
affect all Funds in substantially the same manner. As to matters affecting each 
Fund (e.g., changes in a Fund's investment restrictions), shares of each Fund 
will vote as a separate series. Shares have no preemptive, subscription, or 
conversion rights and are freely transferable. Shareholders are entitled to one 
vote for each share held and may vote in the election of Trustees and on other 
matters submitted to shareholders. Shares are fully-paid and, except as set 
forth in the Statement of Additional Information, non-assessable. 
    

   
Upon liquidation of the Trust, each Fund's shareholders will receive pro rata, 
subject to the rights of creditors, (a) the proceeds of the sale of the assets 
held in the respective series to which the shares of the Fund relate, less (b) 
the liabilities of the Trust attributable to the respective series. Shares will 
remain on deposit with the Trust's transfer agent and certificates will not be 
issued. 
    

   
XIV. SHAREHOLDER SERVICES 
    

PSC is the shareholder services and transfer agent for shares of the Trust. 
PSC, a Massachusetts corporation, is a wholly-owned subsidiary of PGI. PSC's 
offices are located at 60 State Street, Boston, Massachusetts 02109. Inquiries 
to PSC should be mailed to Shareholder Services, Pioneering Services 
Corporation, P.O. Box 9014, Boston, Massachusetts 02205-9014. Brown Brothers 
Harriman & Co. (the "Custodian") serves as the custodian of the Trust's 
portfolio securities. The principal address of the Mutual Fund division of the 
Custodian is 40 Water Street, Boston, Massachusetts 02109. 

Account and Confirmation Statements 

PSC maintains accounts for shareholders and all transactions are recorded in 
these accounts. Confirmation statements showing the details of transactions are 
sent to shareholders monthly. The Pioneer Combined Account Statement, mailed 
quarterly, is available to all shareholders who have more than one Pioneer 
account. The bottom portion of the confirmation statement should be used as a 
remittance slip to make additional investments or to indicate a change of 
address on your account. 

   
Shareholders whose shares are held in the name of an investment broker-dealer 
or other party will not normally have an account with the Fund and might not be 
able to utilize some of the services available to shareholders of record. 
Examples of services which might not be available are investment or redemption 
of shares by mail, automatic reinvestment of dividends and capital gains 
distributions, withdrawal plans, Letters 
    

                                       13 
<PAGE>
 
   
of Intention, Rights of Accumulation, telephone exchanges and redemptions, and 
newsletters. 
    

   
Additional Investments. You may add to your account by sending a check (minimum 
of $100 for Class A shares and $500 for Class B shares) to PSC (account number 
and Class of shares should be clearly indicated). The bottom portion of a 
confirmation statement may be used as a remittance slip to make additional 
investments. Additions to your account, whether by check or through a Pioneer 
Investomatic Plan, are invested in full and fractional shares of the Fund at 
the applicable offering price in effect as of the close of the Exchange on the 
day of receipt. 
    

   
Automatic Investment Plans. You may arrange for regular automatic investments 
of $100 or more through government/military allotments, payroll deduction or 
through a Pioneer Investomatic Plan. A Pioneer Investomatic Plan provides for a 
monthly or quarterly investment by means of a pre-authorized draft drawn on a 
checking account. Pioneer Investomatic Plan investments are voluntary, and you 
may discontinue the plan at any time without penalty upon 30 days' written 
notice to PSC. PSC acts as agent for the purchaser, the broker-dealer and PFD 
in maintaining these plans. 
    

Financial Reports and Tax Information 

Shareholders will receive financial reports semi-annually. Each annual report 
will be audited by the Trust's independent public accountants. In January of 
each year, each Fund will mail to shareholders information about the tax status 
of dividends and distributions. 

Dividend Options 

   
 Regular Reinvestment. Dividends are automatically reinvested in additional 
shares of the same class of each Fund in which you maintain an investment 
unless you instruct otherwise. 
    

 Check. You may elect (in writing) to receive monthly dividend checks. You may 
also direct that dividend checks be paid to another person or sent to another 
address (other than the one on file for your account), although if you make 
either designation after you have opened your account, a signature guarantee 
signed by all registered account owners must accompany your instructions. 

   
 Directed Dividends. You may elect (in writing) to have the dividends paid by 
one Pioneer fund account invested in a second Pioneer fund account of the same 
class. The value of this second account must be at least $1,000 ($500 for 
Pioneer Fund or Pioneer II). Invested dividends may be in any amount, and there 
are no fees or charges for this service. Retirement plan shareholders may only 
direct dividends to accounts with identical registrations, i.e., "PGI IRA Cust 
for John Smith" may only go into another account registered "PGI IRA Cust for 
John Smith." 
    

 Direct Deposit. If you have elected to take distributions, whether dividends 
or dividends and capital gains, in cash, or have established a Systematic 
Withdrawal Plan, you may choose to have those cash payments deposited directly 
into your savings, checking or NOW bank account. You may establish this service 
by completing the appropriate section on the Account Application when opening a 
new account or the Account Options Form for an existing account. 

Voluntary Tax Withholding 

   
You may request (in writing) that PSC withhold 28% of the dividends and capital 
gains distributions paid from your account (before any reinvestment) and 
forward the amount withheld to the Internal Revenue Service as a credit against 
your federal income taxes. This option is not available for retirement plan 
accounts or for accounts subject to backup withholding. 
    

Retirement Plans 

Interested persons should contact the Retirement Plans Department of PSC at 
1-800-622-0176 for information relating to Pioneer's retirement plans for 
businesses, Simplified Employee Pension Plans, Individual Retirement Accounts 
(IRA's), Section 401(k) salary reduction plans and Section 403(b) retirement 
plans for employees of associations, public school systems and charities, all 
of which are available in conjunction with investments in Pioneer Cash Reserves 
Fund and Pioneer U.S. Government Money Fund. The Account Application contained 
in this Prospectus should not be used to establish such plans. Separate 
applications are required. 

Yield Information 

Yield information may be obtained by telephone 1-800-225-4321. Yield 
information is updated each weekday and is based on the annualized yield over 
the immediately preceding seven days, determined with a formula established by 
the SEC. See "Investment Results" below. Yields are not fixed and will vary 
with changes in the income and expenses of the Funds. 

Telecommunications Device for the Deaf (TDD) 

If you have a hearing disability and you own TDD keyboard equipment, you can 
call our TDD number toll-free at 1-800- 225-1997, weekdays from 8:30 a.m. to 
5:30 p.m. Eastern Time, to contact our telephone representatives with questions 
about your account. 

Systematic Withdrawal Plans 

   
If your account has a total value of at least $10,000 you may establish a 
Systematic Withdrawal Plan providing for fixed payments at regular intervals. 
Withdrawals from Class B share accounts are limited to 10% of the value of the 
account at the time the plan is implemented. See "Waiver or Reduction of 
Contingent Deferred Sales Charge" for more information. Periodic checks of $50 
or more will be sent to you monthly or quarterly. You may also direct that 
withdrawal checks be paid to another person, although if you make this 
designation after you have opened your account, a signature guarantee must 
accompany your instructions. 
    

   
You may obtain additional information by calling PSC at 1-800-225-6292 or by 
referring to the Statement of Additional Information. 
    

Telephone Transactions and Related Liabilities 

Your account is automatically authorized to have telephone transaction 
privileges unless you indicate otherwise on your Account Application or by 
writing to PSC. You may sell or exchange your Fund shares by telephone by 
calling 1-800-225- 6292 between 8:00 a.m. and 8:00 p.m. Eastern Time on week 

                                       14 
<PAGE>
 
   
days. See "Share Price," "How to Sell Fund Shares" and "How to Exchange Fund 
Shares" for more information. To confirm that each transaction instruction 
received by telephone is genuine, each Fund will record each telephone 
transaction, require the caller to provide the personal identification number 
(PIN) for the account and send you a written confirmation of each telephone 
transaction. Different procedures may apply to accounts that are registered to 
non-U.S. citizens or that are held in the name of an institution or in the name 
of an investment broker-dealer or other third-party. If reasonable procedures, 
such as those described above, are not followed, a Fund may be liable for any 
loss due to unauthorized or fraudulent instructions. Each Fund may implement 
other procedures from time to time. In all other cases, neither a Fund, PSC or 
PFD will be responsible for the authenticity of instructions received by 
telephone, therefore, you bear the risk of loss for unauthorized or fraudulent 
telephone transactions. 
    

   
During times of economic turmoil or market volatility or as a result of severe 
weather or a natural disaster, it may be difficult to contact a Fund by 
telephone to institute a redemption or exchange. You should communicate with a 
Fund in writing if you are unable to reach the Fund by telephone. 
    

   
XV. INVESTMENT RESULTS 
    

   
From time to time, each of the Funds may include in advertisements or other 
communications to existing or proposed shareholders its respective "yield" and 
"effective yield." The "yield" is computed by dividing a Fund's net investment 
income per share attributable to the appropriate class during a base period of 
seven days (which period will be stated in the communication) by the net asset 
value per share for the appropriate class of the Fund on the last day of such 
seven- day period. The Fund's net investment income per share is determined by 
dividing net investment income during the base period by the average number of 
shares for the appropriate class of the Fund entitled to receive dividends 
during the base period. The Fund's seven-day yield for the appropriate class is 
then annualized by a computation that assumes that the Fund's net investment 
income is earned for a one-year period at the same rate as during the seven-day 
base period. The "effective yield" is calculated similarly, except that income 
is assumed to be reinvested. The "effective yield" will be slightly higher than 
the "yield" because of the compounding effect of the assumed reinvestment. 
    

Pioneer Tax-Free Money Fund may also from time to time advertise its taxable 
equivalent yield and taxable equivalent effective yield. The Fund's taxable 
equivalent yield is determined by dividing that portion of the Fund's yield 
(calculated as described above) that is tax exempt by one minus a stated 
marginal federal income tax rate. The Fund's taxable equivalent effective yield 
is determined in a similar manner. For further information on the computation 
of taxable equivalent yield, see the Appendix to this Prospectus. 

The yields of the Funds will vary from time to time depending on market 
conditions, the composition of the Funds' portfolios and operating expenses of 
the Funds. The temporary policy of the Funds' investment adviser to reduce 
management fees and limit expenses will, so long as such policy is in effect, 
have the effect of increasing yield. These factors and possible differences in 
the methods used in calculating yields should be considered when comparing 
performance information published for other investment companies and other 
investment vehicles. Yield quotations should also be considered relative to the 
risks associated with the Funds' investment objective and policies. At any time 
in the future, yield quotations may be higher or lower than past return or 
yield quotations, and there can be no assurance that any historical yield 
quotation will continue in the future. 

The Funds may also include comparative performance information in advertising 
or marketing their shares. This performance information may include data from 
Lipper Analytical Services, Inc., Donoghue's Money Fund Report or other 
industry publications. 

For more information regarding the computation of yield, see the Statement of 
Additional Information. 

   
XVI. APPENDIX 
    

Some of the terms used in this Prospectus are described below. 

"Bank Obligations" include certificates of deposit which are negotiable 
certificates evidencing the indebtedness of a commercial bank to repay funds 
deposited with it for a definite period of time (usually from 14 days to one 
year) at a stated interest rate. Bankers' acceptances are credit instruments 
evidencing the obligation of a bank to pay a draft which has been drawn on it 
by a customer. These instruments reflect the obligation both of the bank and of 
the drawer to pay the face amount of the instrument upon maturity. Time 
deposits are non- negotiable deposits maintained in a banking institution for a 
specified period of time. The Funds generally purchase time deposits with a 
maturity of the following business day. Time deposits with a maturity of two 
business days or more will be considered to be illiquid for purposes of the 
Funds' investment restrictions. 

"Commercial Paper" consists of short-term (usually from 1 to 270 days) 
unsecured promissory notes issued by corporations in order to finance their 
current operations. The Funds may invest only in commercial paper rated A-1 by 
S&P or P-1 by Moody's. The ratings A-1 and P-1 are the highest commercial paper 
ratings assigned by S&P and Moody's. Commercial paper which is not rated is not 
necessarily of lower quality than that which is rated, but may be less 
marketable and therefore provide a higher yield. 

"Money Market" refers to the marketplace composed of the financial institutions 
which handle the purchase and sale of liquid, short-term, high-grade debt 
instruments. The money market is not a single entity, but consists of numerous 
separate markets, each of which deals in a different type of short-term debt 
instrument. These include U.S. Government obligations, commercial paper, bank 
obligations, municipal securities, and other debt instruments, generally 
referred to as money market instruments. 

"Repurchase Agreements" are transactions by which a Fund purchases a security 
and simultaneously commits to resell that security to the seller at an agreed 
upon price on an agreed upon date within a number of days (usually not more 
than seven) from the date of purchase. The resale price reflects the purchase 
price plus an agreed upon market rate of interest which is unre-

                                       15 
<PAGE>
 
   
lated to the coupon rate or maturity of the purchased security. A repurchase 
agreement involves the obligation of the seller to pay the agreed upon price, 
which obligation is in effect secured by the value (at least equal to the 
amount of the agreed upon resale price and marked to market daily) of the 
underlying security. Whether a repurchase agreement is the purchase and sale of 
a security or a collateralized loan has not been definitely established for 
purposes other than the application of the federal statutory provisions 
exempting U.S. government obligations from state taxation (for which purpose a 
repurchase agreement is treated as a collateralized loan). This might become an 
issue in the event of the bankruptcy of the other party to the transaction. 
While it is not possible to eliminate all risk from these transactions 
(particularly the possibility of a decline in the market value of the 
underlying securities, as well as delay and costs to a Fund in connection with 
bankruptcy proceedings), it is the policy of the Trust to enter into repurchase 
agreements only with banks and broker dealers approved by the Board of Trustees 
of the Trust and only with respect to U.S. Government securities which 
throughout the period have a value at least equal to the amount of the loan 
(including accrued interest). It is also the policy of the Board of Trustees to 
evaluate on a periodic basis the creditworthiness of the parties with which the 
Funds engage in repurchase agreements. 
    

   
"Tax-Exempt Securities" are debt obligations issued to obtain funds for various 
public purposes, including the construction of a wide range of public 
facilities such as bridges, highways, housing, mass transportation, schools, 
streets and water and sewer works. Other public purposes for which tax-exempt 
municipal securities may be issued include refunding outstanding obligations, 
obtaining funds for general operating expenses, and obtaining funds to loan to 
other public institutions. Such obligations are included within the category of 
tax-exempt securities only if the interest paid thereon is both exempt from 
regular federal income tax and not an item of tax preference under the federal 
alternative minimum tax. There are a variety of short-term tax-exempt 
securities in which Pioneer Tax-Free Money Fund may invest, including: (i) tax 
anticipation notes, which finance working capital needs of municipalities and 
are issued in anticipation of the receipt of tax revenue; (ii) revenue 
anticipation notes, which are issued in expectation of the receipt of other 
kinds of revenue, such as federal revenues available under the federal revenue 
sharing program; (iii) bond anticipation notes, which are normally issued to 
provide interim financing until long-term financing can be arranged; and (iv) 
tax-exempt commercial paper, which includes short-term promissory notes issued 
by municipalities to supplement their cash flow. The two principal 
classifications of medium and long-term tax-exempt municipal securities are 
"general obligation" and "revenue" bonds. General obligation bonds are secured 
by the issuer's pledge of its faith, credit and taxing power for the payment of 
principal and interest. The payment of such bonds may be dependent upon an 
appropriation by the issuer's legislative body. The characteristics and 
enforcement of general obligation bonds vary according to the law applicable to 
the particular issuer. Revenue bonds are payable only from the revenues derived 
from a particular facility or class of facilities or, in some cases, from the 
proceeds of a special excise or other specific revenue source. There are, of 
course, variations in the security of all tax-exempt municipal securities, both 
within a particular classification and between classifications, depending on 
numerous factors. The yields on such securities are also dependent on a variety 
of factors, including general money market conditions, supply and demand and 
general conditions of the municipal securities markets, size of a particular 
offering, the maturity of the obligation and rating of the issue. The ratings 
of Moody's and S&P represent their opinions as to the quality of various 
tax-exempt municipal securities. It should be emphasized, however, that ratings 
are not absolute standards of quality. Consequently, securities with the same 
maturity, coupon and rating may have different yields while securities of the 
same maturity and coupon with different ratings may have the same yield. 
    

"U.S. Government Obligations" are debt securities (including bills, notes, and 
bonds) issued by the U.S. Treasury or issued by an agency or instrumentality of 
the U.S. Government which is established under the authority of an Act of 
Congress. Such agencies or instrumentalities include, but are not limited to, 
the Federal National Mortgage Association, the Small Business Administration, 
the Government National Mortgage Association, and the Federal Home Loan Banks. 
Although all obligations of agencies and instrumentalities are not direct 
obligations of the U.S. Treasury, payment of the interest and principal on 
these obligations is generally backed directly or indirectly by the U.S. 
government. This support can range from the backing of the full faith and 
credit of the United States (U.S. Treasury securities and, for example, 
securities issued by the Small Business Administration and the Government 
National Mortgage Association) to the backing solely of the issuing 
instrumentality itself (securities issued by the Federal National Mortgage 
Association and the Federal Home Loan Banks). In the case of obligations not 
backed by the full faith and credit of the United States, the Trust must look 
principally to the agency issuing or guaranteeing the obligation for ultimate 
repayment and may not be able to assert a claim against the United States 
itself in the event the agency or instrumentality does not meet its 
commitments. 

                                       16 
<PAGE>
 
   
Taxable Equivalent Yields* 
    

The tables below show the approximate taxable yields which are equivalent to 
hypothetical tax-exempt yields from 3% to 7% under Federal income tax laws 
applicable to individuals during 1994. 

<TABLE>
<CAPTION>
                                                                    Taxable Yield Required 
   Single Return          Joint Return        Tax                To Equal A Tax Free Yield Of: 
            (Taxable Income)*                 Rate       3%        4%        5%        6%         7% 
<S>                     <C>                   <C>       <C>       <C>       <C>       <C>        <C>
Up to $22,750           Up to $38,000         15.0%     3.53      4.71      5.88      7.06        8.24 
$22,751-$55,100         $38,001-$91,850       28.0%     4.17      5.56      6.94      8.33        9.72 
$55,101-$115,000        $91,851-$140,000      31.0%     4.35      5.80      7.25      8.70       10.12 
$115,001-$250,000       $140,001-$250,000     36.0%     4.69      6.25      7.81      9.38       10.94 
Over $250,000           Over $250,000         39.6%     4.97      6.62      8.78      9.93       11.95 
</TABLE>

*Net amount subject to Federal income tax after deductions and exemptions. 
Table does not reflect the effect of Deduction Limitation and Exemption 
Phaseout described below** or of the alternative minimum tax, if any. Table 
assumes person filing Single Return is not a married individual filing a 
separate return, a surviving spouse, or a head of household. 
**Deduction Limitation: Each $100 of adjusted gross income ("AGI") in excess of 
$111,800 ($55,900 for marrieds filing separately) causes the loss of $3 of 
itemized deductions. This limitation affects all itemized deductions other than 
medical expenses, investment interest, and casualty, theft and wagering losses. 
However, not more than 80% of a taxpayer's itemized deductions can be 
eliminated. The threshold amounts will be adjusted for inflation from year to 
year. 
Exemption Phaseout: Each $2,500 or fraction thereof of AGI in excess of 
$167,700 for joint filers ($111,800 for single taxpayers) causes taxpayers to 
lose 2% of their personal exemptions. The threshold amounts will be adjusted 
for inflation from year to year. 

Some tax brackets and the threshold amounts will be adjusted for inflation in 
1994. 

The following formula can be used to calculate a taxable yield 
which is equivalent to the corresponding tax-free yield: 

        Tax Free Yield 
     --------------------  =  Taxable Equivalent Yield 
     1 - Your Tax Bracket 

For example, if you are in the 28% tax bracket and earn a tax-free 
yield of 5%, the taxable equivalent yield would be 6.94%. 

       5%        .05
     -------  =  ---  =  6.94% 
     1 - 28%     .72 

There can be no assurance that the Pioneer Tax-Free Money Fund will achieve any 
specific tax-exempt yield. While it is expected that a substantial portion of 
the interest income distributed to investors in the Tax-Free Fund will be 
exempt from regular federal income taxes, portions of such distributions may be 
subject to regular federal income tax or federal alternative minimum tax. In 
addition, all or a substantial portion of such distributions may be subject to 
state and local taxes. Subsequent tax law changes could result in prospective 
or retroactive changes in the tax brackets, tax rates and tax equivalent yields 
set forth above. 

                                       17 
<PAGE>
 
Pioneer Cash Reserves Fund 
Pioneer U.S. Government Money Fund 
Pioneer Tax-Free Money Fund 
60 State Street 
Boston, Massachusetts 02109 

OFFICERS 
JOHN F. COGAN, JR., Chairman and President 
DAVID D. TRIPPLE, Executive Vice President 
SHERMAN B. RUSS, Vice President 
WILLIAM H. KEOUGH, Treasurer 
JOSEPH P. BARRI, Secretary 

INVESTMENT ADVISER 
PIONEERING MANAGEMENT CORPORATION 

CUSTODIAN 
BROWN BROTHERS HARRIMAN & CO. 

INDEPENDENT PUBLIC ACCOUNTANTS 
ARTHUR ANDERSEN LLP 

LEGAL COUNSEL 
HALE AND DORR 

SHAREHOLDER SERVICES AND TRANSFER AGENT 
PIONEERING SERVICES CORPORATION 
60 State Street 
Boston, Massachusetts 02109 
Telephone: 1-800-225-6292 


SERVICE INFORMATION 
If you would like information on the following, please call . . . 
Existing and new accounts, prospectuses, 
 applications, service forms and 
 telephone transactions  ....................................... 1-800-225-6292 
Automated fund yields, prices and 
 account information ........................................... 1-800-225-4321 
Retirement plans ............................................... 1-800-622-0176 
Toll-free fax .................................................. 1-800-225-4240 
Telecommunications Device for the Deaf (TDD) ................... 1-800-225-1997 


   
0395-2371 
(C)The Pioneer Group, Inc. 
    


(LOGO) 

Pioneer 
Cash Reserves 
Fund 

Pioneer 
U.S. Government 
Money Fund 

Pioneer 
Tax-Free 
Money Fund 

   
Class A and Class B Shares 
Prospectus 
March 31, 1995 
    



<PAGE>
                           Pioneer Cash Reserves Fund
                           Class A and Class B Shares
                       Pioneer U.S. Government Money Fund
                                 Class A Shares
                          Pioneer Tax-Free Money Fund
                                 Class A Shares

                                60 State Street
                          Boston, Massachusetts 02109


                      STATEMENT OF ADDITIONAL INFORMATION

   
                                 March 31, 1995


     This  Statement  of  Additional  Information  (Part  B of the  Registration
Statement)  is not a  Prospectus,  but  should be read in  conjunction  with the
Prospectus  dated March 31, 1995 of Pioneer Money Market Trust (the "Trust").  A
copy of the  Prospectus  can be obtained  free of charge by calling  Shareholder
Services  at  1-800-225-6292  or by  written  request  to the  Trust at 60 State
Street,  Boston,  Massachusetts  02109. The Trust's financial statements for the
most recent fiscal year ended  December 31, 1994 are attached to this  Statement
of Additional Information.
    

                               TABLE OF CONTENTS
                                                                     Page

   
1.   Investment Policies and Restrictions.............................2
2.   Management of the Trust..........................................4
3.   Investment Adviser...............................................9
4.   Principal Underwriter............................................10
5.   Distribution Plans...............................................11
6.   Shareholder Servicing/Transfer Agent.............................13
7.   Custodian........................................................14
8.   Independent Public Accountants...................................14
9.   Portfolio Transactions...........................................14
10.  Tax Status.......................................................16
11.  Description of Shares............................................18
12.  Certain Liabilities..............................................18
13.  Determination of Net Asset Value.................................19
14.  Systematic Withdrawal Plan.......................................21
15.  Investment Results...............................................22
16.  Financial Statements.............................................
    

     Appendix A.......................................................A-1
     Appendix B.......................................................B-1

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

THIS  STATEMENT OF ADDITIONAL  INFORMATION IS NOT A PROSPECTUS AND IS AUTHORIZED
FOR DISTRIBUTION TO PROSPECTIVE  INVESTORS ONLY IF PRECEDED OR ACCOMPANIED BY AN
EFFECTIVE PROSPECTUS.


<PAGE>


1.   INVESTMENT POLICIES AND RESTRICTIONS

     The  Prospectus of the Trust (the  "Prospectus")  identifies the investment
objective of each series of the Trust:  Pioneer Cash Reserves Fund, Pioneer U.S.
Government  Money  Fund and  Pioneer  Tax-Free  Money  Fund  (collectively,  the
"Funds"),  and the principal  investment policies of the Funds. Other investment
policies  and a further  description  of some of the  policies  described in the
Prospectus are set forth below.

     The following  policies and limitations  supplement  those discussed in the
Prospectus.  Whenever  an  investment  policy  or  limitation  states a  maximum
percentage of a Fund's assets that may be invested in any security or sets forth
a policy regarding quality standards, such standard or other limitation shall be
determined  immediately  after  and  as  a  result  of  the  Fund's  investment.
Accordingly,  any later increase or decrease  resulting from a change in values,
net assets or other  circumstances will not be considered in determining whether
the investment complies with such Fund's investment objectives and policies. For
this  purpose,  the issuer of a  tax-exempt  security is deemed to be the entity
(public or private)  primarily  responsible  for the payment of the principal of
and interest on the security.

     Certificates  of  Deposit.   Pioneer  Cash  Reserves  Fund  may  invest  in
certificates   of  deposit  of  large   domestic  banks  and  savings  and  loan
associations  (i.e.,  banks  which  at the  time of  their  most  recent  annual
financial  statements  show  total  assets in excess of $1  billion),  including
foreign  branches of such  domestic  banks,  and of smaller  banks as  described
below. The Fund will not invest in certificates of deposit of foreign banks.

     Investment  in  certificates  of  deposit  issued by  foreign  branches  of
domestic  banks  involves  investment  risks that are different in some respects
from those  associated  with  investment in  certificates  of deposit  issued by
domestic  banks,  including  the possible  imposition  of  withholding  taxes on
interest  income,  the possible  adoption of foreign  governmental  restrictions
which might  adversely  affect the  payment of  principal  and  interest on such
certificates of deposit, or other adverse political or economic developments. In
addition,  it might be more difficult to obtain and enforce a judgment against a
foreign branch of a domestic bank.

     Although the Fund's investment  adviser  recognizes that the size of a bank
is   important,   this  fact  alone  is  not   necessarily   indicative  of  its
creditworthiness. The Fund may invest in certificates of deposit issued by banks
and  savings  and loan  institutions  which had at the time of their most recent
annual financial statements total assets of less than $1 billion,  provided that
(i) the  principal  amounts of such  certificates  of deposit  are insured by an
agency  of the U.S.  Government,  (ii) at no time  will the Fund  hold more than
$100,000  principal  amount of  certificates of deposit of any one such bank and
(iii) at the time of  acquisition,  no more than 10% of the Fund's assets (taken
at current value) are invested in  certificates  of deposit of such banks having
total assets not in excess of $1 billion.

     Investment Restrictions. The following numerical list sets forth all of the
fundamental investment  restrictions applicable to the Funds. These restrictions
cannot be changed for a Fund unless a majority of the outstanding  securities of
such Fund approves the change.  As used in the  Prospectus and this Statement of
Additional  Information,  such approval  means the approval of the lesser of (i)
the holders of 67% or more of the shares represented at a meeting if the holders
of more than 50% of the outstanding shares are present in person or by proxy, or
(ii) the holders of more than 50% of the outstanding shares.

     A Fund may not:

     (1) except  with  respect to  investments  in  obligations  of (a) the U.S.
government,  its agencies,  authorities  or  instrumentalities  and (b) domestic
banks,  purchase  any security if, as a result (i) more than 5% of the assets of
the Fund would be in the securities of any one issuer,  or (ii) more than 25% of
its assets would be in a particular industry;

     (2) borrow money,  except from banks for extraordinary  purposes or to meet
redemptions in amounts not exceeding 33 1/3% of its total assets  (including the
amount  borrowed).  None of the Funds  intends to borrow money during the coming
year;

     (3) make short sales of securities;


                                       2
<PAGE>

     (4) purchase securities on margin;

     (5) write,  purchase  or  otherwise  invest in any put,  call,  straddle or
spread  option or buy or sell real  estate,  commodities  or  commodity  futures
contracts or invest in oil, gas or mineral exploration or development programs;

     (6)  make  loans  to any  person,  except  by (a)  the  purchase  of a debt
obligation  in  which  the Fund is  permitted  to  invest  and (b)  engaging  in
repurchase agreements;

     (7) purchase the  securities  of other  investment  companies or investment
trusts,  unless  they  are  acquired  as  part  of a  merger,  consolidation  or
acquisition of assets;

     (8) act as an underwriter,  except as it may be deemed to be an underwriter
in a sale of restricted securities;

     (9)  invest  in  companies  for  the  purpose  of  exercising   control  or
management; or

     (10) issue senior securities,  except that the issuance of multiple classes
of shares,  in accordance with a statute,  regulation or order of the Securities
and Exchange Commission, shall not constitute the issuance of a senior security.

   
     In  addition,   in  order  to  comply  with  certain  state   statutes  and
non-fundamental  policies of the Funds, the Funds will not (i) pledge,  mortgage
or  hypothecate  their  portfolio  securities  if at the time of such action the
value of the securities so pledged,  mortgaged or hypothecated  would exceed 10%
of the value of a Fund,  (ii) commit  more than 10% of their  assets to illiquid
investments,  such as repurchase agreements that mature in more than seven days,
(iii)  invest  more  than 5% of  their  assets  in  companies  which,  including
predecessors,  have a record of less than three years continuous operation, (iv)
invest in warrants,  (v) purchase or retain the  securities of any issuer if any
officer  or  Trustee  of the Fund or its  investment  adviser  is an  officer or
director  of such  issuer  and  beneficially  owns  more  than  1/2 of 1% of the
securities  of such issuer and all of the  officers and the Trustees of the Fund
and the Fund's investment adviser together own more than 5% of the securities of
such  issuer,  (vi) buy or sell  real  estate,  including  real  estate  limited
partnerships,  except that each Fund may acquire or lease  office  space for its
own use, invest in securities of issuers that invest in real estate or interests
therein,  invest in  securities  that are  secured by real  estate or  interests
therein,  purchase and sell  mortgage-related  securities and hold and sell real
estate  acquired by the Fund as a result of the ownership of securities or (vii)
invest in oil, gas or mineral exploration or development programs or leases. The
term  "person"  as used in  fundamental  investment  restriction  no. 6 includes
institutions as well as  individuals.  Policies in this paragraph may be changed
by the Trustees without shareholder approval or notification.
    

     See the  Prospectus  for a  discussion  of  certain  additional  regulatory
requirements applicable to the Funds.

2.   MANAGEMENT OF THE TRUST

     The Trust's Board of Trustees  provides broad  supervision over the affairs
of the  Trust.  The  officers  of the  Trust  are  responsible  for the  Trust's
operations.  The Trustees and executive  officers of the Trust are listed below,
together  with  their  principal  occupations  during  the past five  years.  An
asterisk  indicates  those  Trustees who are  "interested  persons" of the Trust
within the meaning of the Investment  Company Act of 1940, as amended (the "1940
Act").

JOHN F. COGAN, JR.,* Chairman of the Board, President and Trustee
     President and Director of The Pioneer  Group,  Inc.  ("PGI");  Chairman and
     Director of  Pioneering  Management  Corporation  ("PMC");  Chairman of the
     Board and Chief Executive  Officer of Pioneer  Winthrop  Advisers  ("PWA");
     Chairman  of the Board and  Director  of Pioneer  Funds  Distributor,  Inc.
     ("PFD");  Director of Pioneering  Services  Corporation ("PSC") and Pioneer
     Capital  Corporation  ("PCC");  President  and  Director  of Pioneer  Plans
     Corporation   ("PPC"),    Pioneer   Investment   Corp.   ("PIC"),   Pioneer
     International  Corp.  ("PIntl"),  and  Pioneer  Metals &  Technology,  Inc.
     ("PMT"); Chairman of the Board and Director of Teberebie Goldfields Limited
     ("TGL");  Chairman,  President and Director of Pioneer  Goldfields  Limited
     ("PGL");  Chairman of the Supervisory Board of Pioneer Fonds Marketing GmbH

                                       3
<PAGE>

     ("PFM"); and Chairman and Partner,  Hale and Dorr (counsel to the Fund). 60
     State Street, Boston, Massachusetts

RICHARD H. EGDAHL, M.D., Trustee
     Professor of Management,  Boston  University  School of  Management,  since
     1988;  Professor  of  Public  Health,  Boston  University  School of Public
     Health;  Professor  of Surgery,  Boston  University  School of Medicine and
     Boston  University  Health Policy  Institute;  Director,  Boston University
     Medical  Center;  Executive  Vice President and Vice Chairman of the Board,
     University  Hospital;  Academic Vice President for Health  Affairs,  Boston
     University; Director, Essex Investment Management Company, Inc. (investment
     adviser),  Health Payment Review,  Inc. (health care  containment  software
     firm),  Mediplex Group,  Inc.  (nursing care facilities  firm), Peer Review
     Analysis,    Inc.   (health   care   utilization   management   firm)   and
     Springer-Verlag New York, Inc. (publisher);  Honorary Director,  Franciscan
     Children's  Hospital.  Boston University  Health Policy  Institute,  53 Bay
     State Road, Boston, Massachusetts

MARGARET B. W. GRAHAM, Trustee
     Manager of Research  Operations,  Xerox Palo Alto  Research  Center,  since
     September  1991;  Professor of  Operations  Management  and  Management  of
     Technology,  Boston University School of Management,  since 1989; Associate
     Dean, BUSM, 1988 to 1990 and previously, Associate Professor, Department of
     Operations Management, Boston University School of Management. The Keep, P.
     O. Box 110, Little Deer Isle, Maine 04650

JOHN W. KENDRICK, Trustee
     Professor Emeritus of Economics,  George Washington  University and Adjunct
     Scholar,  American Enterprise Institute.  Hyatt Residence,  Apt. 1521, 8100
     Connecticut Avenue, Chevy Chase, Maryland 20815

MARGUERITE A. PIRET, Trustee
     President,  Newbury,  Piret & Company,  Inc.  (merchant  banking firm). One
     State Street, Suite 415, Boston, Massachusetts

DAVID D. TRIPPLE,* Trustee and Executive Vice President
     Executive Vice  President and Director of PGI;  Director of PCC and Pioneer
     SBIC  Corporation  ("PSBIC");  Executive Vice President,  President,  Chief
     Investment  Officer  and a  Director  of  PMC.  60  State  Street,  Boston,
     Massachusetts

STEPHEN K. WEST, Trustee
     Partner, Sullivan & Cromwell (law firm)
     125 Broad Street, New York, New York

JOHN WINTHROP, Trustee
     President,  John  Winthrop  & Co.,  Inc.  (a private  investment  firm) and
     Director  of NUI Corp.,  Alliance  Capital  Reserves,  Alliance  Government
     Reserves  and  Alliance  Tax  Exempt  Reserves.  One  North  Adgers  Wharf,
     Charleston, South Carolina

SHERMAN B. RUSS, Vice President
     Vice President of PMC, Pioneer Bond Fund and Pioneer America Income Trust.

WILLIAM H. KEOUGH, Treasurer
     Treasurer of each of the Pioneer mutual funds; Senior Vice President, Chief
     Financial  Officer and  Treasurer of PGI;  Treasurer of PFD, PMC, PSC, PCC,
     PIC, PIntl, PMT, PGL and SBIC and Treasurer and Director of PPC.

ERIC RECKARD, Assistant Treasurer
     Assistant  Treasurer  to each of the Pioneer  Funds since 1994;  Manager of
     Fund Accounting for PMC and Assistant to Chief  Financial  Officer prior to
     1994.

JOSEPH P. BARRI, Secretary
     Secretary of PCC, PGI and PMC; and Partner,  Hale and Dorr  (counsel to the
Fund).

   
ROBERT NAULT, Assistant Secretary
     General  Counsel of PGI since 1995;  formerly of Hale and Dorr  (counsel to
     the Fund) where he most recently served as a junior partner.
    


                                       4
<PAGE>

     Each of the above,  with the  exception of Mr. Russ,  is an officer  and/or
trustee or director of the Pioneer Funds listed below.  The Trust's  Declaration
of Trust provides that the holders of two-thirds of its  outstanding  shares may
vote to remove a Trustee of the Trust at any  special  meeting of  shareholders.
The business address of all officers is 60 State Street,  Boston,  Massachusetts
02109.

   
     To the knowledge of the Trust,  no officer or Trustee of the Trust owned 5%
or more of the issued and outstanding shares of PGI on February 28, 1995, except
Mr. Cogan who then owned approximately 15% of such shares.

     At February 28,  1995,  the Trustees and officers of the Trust owned in the
aggregate  less  than  1% of the  outstanding  securities  of the  Trust.  As of
February 28, 1995,  PGI-Rollover  IRA  Custodian  for George E. Siek,  Sr. owned
approximately  6.95% of Pioneer  U.S.  Government  Money Fund's total assets and
Kirpet Co.  owned  approximately  9.95% of Pioneer  Cash  Reserves  Fund's total
assets.  To the knowledge of the Trust, as of February 28, 1995, no person other
than  mentioned  above  owned of  record  or  beneficially  more  than 5% of the
outstanding shares of any series of the Trust.

     PGI, a  publicly-owned  Delaware  corporation,  owns all of the outstanding
capital stock of PMC and PSC. PMC owns all of the  outstanding  capital stock of
PFD. The table below lists all the Pioneer Funds currently offered to the public
and the investment adviser and principal underwriter for each fund.
    
<TABLE>
<CAPTION>


                                                                               Investment         Principal
Fund Name                                                                       Adviser          Underwriter

<S>                                                                               <C>                <C>    
Pioneer Fund                                                                      PMC                PFD
Pioneer II                                                                        PMC                PFD
Pioneer Three                                                                     PMC                PFD
Pioneer Growth Shares                                                             PMC                PFD
Pioneer Capital Growth Fund                                                       PMC                PFD
Pioneer Equity-Income Fund                                                        PMC                PFD
Pioneer Gold Shares                                                               PMC                PFD
Pioneer Winthrop Real Estate Investment Fund                                       *                 PFD
Pioneer Emerging Markets Fund                                                     PMC                PFD
Pioneer Europe Fund                                                               PMC                PFD
Pioneer India Fund                                                                PMC                PFD
Pioneer International Growth Fund                                                 PMC                PFD
Pioneer Bond Fund                                                                 PMC                PFD
Pioneer America Income Trust                                                      PMC                PFD
Pioneer Short-Term Income Trust                                                   PMC                PFD
Pioneer Income Fund                                                               PMC                PFD
Pioneer Tax-Free Income Fund                                                      PMC                PFD
Pioneer Intermediate Tax-Free Fund                                                PMC                PFD
Pioneer California Double Tax-Free Fund                                           PMC                PFD
Pioneer New York Triple Tax-Free Fund                                             PMC                PFD
Pioneer Massachusetts Double Tax-Free Fund                                        PMC                PFD
   
Pioneer Cash Reserves Fund                                                        PMC                PFD
Pioneer U.S. Government Money Market Fund                                         PMC                PFD
Pioneer Tax-Free Money Fund                                                       PMC                PFD
    

Pioneer Interest Shares, Inc.                                                     PMC                **
<FN>

   * Pioneer Winthrop Advisers is the investment adviser of this fund.
  ** This fund is a closed-end investment company.
</FN>
</TABLE>


     PMC, the Fund's investment adviser, also manages the investments of certain
institutional private accounts.

     Compensation  of  Officers  and  Trustees.  The Trust pays no  salaries  or
compensation to any of its officers.  The Trust pays an annual  trustees' fee of

                                       5
<PAGE>

$100,  and a payment of $1,000  plus  expenses  per  meeting  attended,  to each
Trustee who is not affiliated with PMC, PFD or PSC and pays an annual  trustees'
fee of $500 plus expenses to each Trustee  affiliated  with PMC, PFD or PSC. Any
such fees and expenses paid to  affiliates or interested  persons of PMC, PFD or
PSC are  reimbursed to the Trust under its  Management  Contract.  The following
table sets forth certain  information  with respect to the  compensation of each
Trustee of the Trust:

<TABLE>
<CAPTION>

   
                                                             Pension or
                                                             Retirement                     Total
                                                              Benefits                   Compensation
                                Aggregate                    Accrued as                 from Trust and
                              Compensation                     Part of                  Pioneer Family
Name of Trustee              from the Trust*               Trust's Expenses               of Funds**

<S>                              <C>                             <C>                       <C>    
John F. Cogan, Jr.***            $ 500                           $0                        $ 9,000
Richard H. Egdahl, M.D.          3,400                            0                        $55,650
Margaret B.W. Graham             3,400                            0                        $55,650
John W. Kendrick                 3,400                            0                        $55,650
Marguerite A. Piret              4,300                            0                        $66,650
David D. Tripple***                500                            0                        $ 9,000
Stephen K. West                  4,000                            0                        $63,650
John Winthrop                    4,000                            0                        $63,650
<FN>

 *      As of Trust's fiscal year end.
 **     As of December 31, 1994 (calendar year end for all Pioneer Funds listed above).
 ***    All fees paid by the Trust to "interested" Trustees are reimbursed to the Trust by PMC.
</FN>
</TABLE>
    


     3.  INVESTMENT ADVISER

     The Trust has contracted with PMC, 60 State Street, Boston,  Massachusetts,
to act as its investment adviser. The term of the contract is one year and it is
renewable  annually  by the vote of a majority  of the Board of  Trustees of the
Trust  (including a majority of the Board of Trustees who are not parties to the
contract or interested  persons of any such  parties).  The vote must be cast in
person at a meeting  called  for the  purpose  of voting on such  renewal.  This
contract  terminates if assigned and may be terminated without penalty by either
party  by vote of its  Board of  Directors  or  Trustees  or a  majority  of its
outstanding  voting  securities and the giving of sixty days' written notice. As
compensation for its management services and expenses incurred,  PMC is entitled
to a management  fee at the rate of 0.40% per annum of each Fund's average daily
net assets. The fee is normally computed daily and paid monthly.  PMC has agreed
not to  impose  management  fees  for the  Funds  and if  necessary  to limit or
otherwise  reduce  other  operating  expenses to the extent  needed to limit the
expenses  of each  Fund  in  accordance  with  the  schedule  set  forth  in the
Prospectus   under  Note  2  to  "Expense   Information."   The  management  fee
attributable  to Class B Shares will only be imposed to the extent it is imposed
for Class A Shares.  PMC's  agreement  is  voluntary  and  temporary  and may be
revised or  terminated  at any time.  The purpose of this policy is to enhance a
Fund's dividend yield during the period when, because of its smaller size, fixed
expenses have a more significant impact on yield.

   
     During the fiscal year ended  December  31,  1994,  pursuant to the expense
limitation  discussed  above, the management fees of Pioneer Cash Reserves Fund,
Pioneer U.S.  Government Money Fund and Pioneer Tax Free Money Fund were reduced
by $250,479, $117,274 and $36,209, respectively,  resulting in actual management
fees paid during such period of $214,043,  $0 and $0,  respectively.  During the
fiscal  year ended  December  31,  1993,  the  management  fees of Pioneer  Cash
Reserves Fund,  Pioneer U.S.  Government  Money Fund and Pioneer  Tax-Free Money
Fund were reduced by $201,232, $92,361 and $29,957,  respectively,  resulting in
actual  management  fees  paid  during  such  period  of  $28,991,  $0  and  $0,
respectively.  During the fiscal year ended  December 31, 1992,  the  management
fees of Pioneer  Cash  Reserves  Fund,  Pioneer U.S.  Government  Money Fund and
Pioneer  Tax-Free  Money Fund were  reduced by  $136,097,  $104,034 and $30,942,
respectively, resulting in actual management fees paid during such period to PMC
of $125,487, $0 and $0, respectively.
    
                                       6
<PAGE>

     4.       PRINCIPAL UNDERWRITER

   
     PFD serves as the principal  underwriter  for the Trust in connection  with
the continuous  offering of the Trust's Class A shares and Pioneer Cash Reserves
Fund Class B shares.  During the  Trust's  two most  recently  completed  fiscal
years, no underwriting  commissions  were paid to PFD. PFD commenced  service as
the Trust's principal underwriter as of March 31, 1995.

     The Trust, on behalf of each Fund,  entered into an Underwriting  Agreement
with PFD. The Underwriting Agreement will continue from year to year if annually
approved by the Trustees. The Underwriting Agreement provides that PFD will bear
expenses  for the  distribution  of the  Trust's  shares,  except  for  expenses
incurred  by PFD for which it is  reimbursed  by the Trust  under the Rule 12b-1
distribution plans applicable to the Class A and Class B shares.

     PFD  bears  all  expenses  it  incurs  in  providing   services  under  the
Underwriting Agreement.  Such expenses include compensation to its employees and
representatives  and to securities  dealers for  distribution  related  services
performed for the Trust.  PFD also pays certain  expenses in connection with the
distribution  of the Trust's shares,  including the cost of preparing,  printing
and distributing  advertising or promotional materials, and the cost of printing
and distributing prospectuses and supplements to prospective  shareholders.  The
Trust  bears  the  cost of  registering  its  shares  under  federal  and  state
securities law and the laws of certain foreign countries.

     The Trust and PFD have  agreed to  indemnify  each  other  against  certain
liabilities, including liabilities under the Securities Act of 1933, as amended.
Under the  Underwriting  Agreement,  PFD will use its best  efforts in rendering
services to the Trust.

     The Trust will not  generally  issue  shares for  consideration  other than
cash.  At the  Trust's  sole  discretion,  however,  it  may  issue  shares  for
consideration  other than cash in  connection  with a bona fide  reorganization,
statutory  merger,  or other  acquisition  of portfolio  securities  (other than
municipal  debt  securities  issued  by state  political  subdivisions  or their
agencies or  instrumentalities)  provided (i) the securities meet the investment
objectives  and policies of the Trust;  (ii) the  securities are acquired by the
Trust for investment and not for resale; (iii) the securities are not restricted
as to transfer  either by law or  liquidity of market;  and (iv) the  securities
have a value which is readily ascertainable. An exchange of securities for Trust
shares may be a taxable transaction to the shareholder.

     The redemption price of shares of beneficial  interest of the Trust may, at
the Manager's  discretion,  be paid in cash or portfolio  securities.  The Trust
has,  however,  elected to be governed by Rule 18f-1 under the 1940 Act pursuant
to which the Trust is obligated to redeem shares solely in cash up to the lesser
of $250,000 or 1% of the  Trust's net asset value  during any 90-day  period for
any one shareholder.  Should the amount of redemptions by any shareholder exceed
such limitation,  the Trust will have the option of redeeming the excess in cash
or portfolio  securities.  In the latter case,  the  securities are taken at the
value employed in determining  the Trust's net asset value. A shareholder  whose
shares  are  redeemed  in-kind  may  incur  brokerage  charges  in  selling  the
securities  received  in-kind.  The selection of such securities will be made in
such manner as the Board deems fair and reasonable.
    

     5.       DISTRIBUTION PLANS

     The  Trust,  on behalf of each  Fund,  has  adopted a plan of  distribution
pursuant to Rule 12b-1  promulgated  by the  Commission  under the 1940 Act with
respect to Class A shares (the "Class A Plan") and a plan of  distribution  with
respect  to Class B shares of  Pioneer  Cash  Reserves  Fund only (the  "Class B
Plan") (together, the "Plans").

     Class A Plan. Pursuant to the Class A Plan a Fund may reimburse PFD for its
expenditures in financing any activity  primarily intended to result in the sale
of the Class A Plan shares.  Certain  categories of such  expenditures have been
approved  by the  Board of  Trustees  and are set forth in the  Prospectus.  See
"Distribution  Plans" in the  Prospectus.  The expenses of each Fund pursuant to
the Class A Plan are  accrued  daily at a rate  which may not  exceed the annual
rate of 0.15% of a Fund's  average  daily  net  assets  attributable  to Class A
shares.

                                       7
<PAGE>

   
     Class B Plan.  The Class B Plan  provides  that Pioneer Cash  Reserves Fund
shall  pay PFD,  as the  Fund's  distributor  for its  Class B  shares,  a daily
distribution  fee equal on an annual basis to 0.75% of the Fund's  average daily
net assets  attributable  to Class B shares and will pay PFD a service fee equal
to 0.25% of the Fund's average daily net assets  attributable  to Class B shares
(which  PFD will in turn pay to  securities  dealers  which  enter  into a sales
agreement  with PFD at a rate of up to 0.25% of the  Fund's  average  daily  net
assets  attributable  to  Class B  shares  owned  by  investors  for  whom  that
securities  dealer  is the  holder or dealer of  record).  This  service  fee is
intended to be consideration  for personal  services and/or account  maintenance
services rendered by the dealer with respect to Class B shares. PFD will advance
to dealers  the  first-year  service  fee at a rate equal to 0.25% of the amount
invested. As compensation  therefor,  PFD may retain the service fee paid by the
Fund with respect to such shares for the first year after purchase. Dealers will
become  eligible  for  additional  service  fees  with  respect  to such  shares
commencing in the thirteenth month following purchase.  Dealers may from time to
time be  required to meet  certain  other  criteria in order to receive  service
fees.  PFD or its  affiliates  are  entitled to retain all service  fees payable
under  the  Class B Plan for  which  there is no  dealer  of record or for which
qualification  standards have not been met as partial consideration for personal
services and/or account maintenance  services performed by PFD or its affiliates
for shareholder accounts.
    

     The  purpose of  distribution  payments to PFD under the Class B Plan is to
compensate PFD for its distribution  services to Pioneer Cash Reserves Fund. PFD
pays  commissions  to dealers as well as expenses of printing  prospectuses  and
reports used for sales  purposes,  expenses with respect to the  preparation and
printing of sales literature and other distribution related expenses, including,
without limitation, the cost necessary to provide distribution-related  services
or  personnel,  travel,  office  expenses and  equipment.  The Class B Plan also
provides that PFD will receive all CDSCs  attributable  to Class B shares.  (See
"Distribution Plans" in the Prospectus.)

     General.  In  accordance  with the terms of the Plans,  PFD provides to the
Trust for  review by the  Trustees a  quarterly  written  report of the  amounts
expended under the respective  Plan and the purpose for which such  expenditures
were made. In the Trustees'  quarterly  review of the Plans,  they will consider
the continued appropriateness and the level of reimbursement or compensation the
Plans provide.

     No interested  person of the Trust, nor any Trustee of the Trust who is not
an interested person of the Fund, has any direct or indirect  financial interest
in the  operation  of the Plans except to the extent that PFD and certain of its
employees  may be deemed to have such an  interest  as a result of  receiving  a
portion of the amounts  expended under the Plans by each of the Funds and except
to the extent certain  officers may have an interest in PFD's  ultimate  parent,
PGI.

   
     The  Plans  were  adopted  by a  majority  vote of the  Board of  Trustees,
including  all of the Trustees who are not, and were not at the time they voted,
interested persons of the Trust, as defined in the 1940 Act (none of whom has or
have any direct or indirect  financial  interest in the  operation of the Plans)
(the "Qualified  Trustees"),  cast in person at a meeting called for the purpose
of voting on the Plans.  In approving  the Plans,  the Trustees  identified  and
considered a number of potential benefits which the Plans may provide. The Board
of Trustees  believes that there is a reasonable  likelihood that the Plans will
benefit  each Fund and its current and future  shareholders.  Under their terms,
the Plans  remain  in effect  from year to year  provided  such  continuance  is
approved  annually by vote of the Trustees in the manner  described  above.  The
Plans may not be amended to increase materially the annual percentage limitation
of average  net assets  which may be spent for the  services  described  therein
without approval of the  shareholders of the Class or Classes affected  thereby,
and  material  amendments  of the Plans must also be approved by the Trustees in
the manner described above. On March 10, 1995, the Board of Trustees approved an
amendment to the Trust's Class A Plan, on behalf of each Fund,  authorizing PFD,
in its  capacity as  principal  underwriter  of the Trust's  shares,  to receive
compensation  from the Trust  pursuant to the Class A Plan.  Under the  original
Class A Plan,  PFD served as  servicing  agent for the Trust with respect to the
Plan. The Board of Trustees  determined  that this amendment would not result in
an increase of the annual percentage  limitation of average net assets which may
be spent by the Trust,  on behalf of each Fund, for the services  described with
respect  to each  Fund's  Class A  shares  in the  Class A Plan.  A Plan  may be

                                       8
<PAGE>

terminated at any time, without payment of any penalty,  by vote of the majority
of the Trustees who are not  interested  persons of the Trust and have no direct
or indirect  financial interest in the operations of the Plan, or by a vote of a
majority of the outstanding  voting securities of the respective Class of a Fund
(as defined in the 1940 Act). A Plan will  automatically  terminate in the event
of its  assignment  (as  defined in the 1940 Act).  In the  Trustees'  quarterly
review of the Plans, they will consider the Plans' continued appropriateness and
the level of compensation they provide.
    

     During the fiscal year ended  December 31, 1994,  the Funds  incurred total
distribution fees pursuant to the Class A Distribution Plan as follows:

     Pioneer Cash    Pioneer U.S. Government  Pioneer Tax-Free
     Reserves Fund         Money Fund            Money Fund

   
       $165,050             $36,283               $8,147
    

     Distribution fees were paid by the Fund to PFD in reimbursement of expenses
related to servicing of  shareholder  accounts and to  compensating  dealers and
sales personnel. There were no Class B Shares outstanding on December 31, 1994.

   
     6.       SHAREHOLDER SERVICING/TRANSFER AGENT
    

     The Trust has contracted with PSC, 60 State Street, Boston,  Massachusetts,
to act as shareholder  services and transfer agent for the Trust.  This contract
terminates if assigned and may be terminated  without penalty by either party by
vote of its Board of  Directors  or Trustees  or a majority  of its  outstanding
voting securities and the giving of ninety days' written notice.

     Under the terms of its contract  with the Trust,  PSC services  shareholder
accounts,  and  its  duties  include:  (i)  processing  sales,  redemptions  and
exchanges of shares of the Trust; (ii) distributing  dividends and capital gains
associated with Trust portfolio accounts;  and (iii) maintaining account records
and responding to shareholder inquiries.  PSC handles all routine communications
with  shareholders  but obtains data  processing and  operational  services from
Advanced Information Service Company of Boston, Massachusetts.

     PSC receives an annual fee of $27.45 per shareholder account from the Trust
as compensation for the services  described above.  This fee is set at an amount
determined  by vote of a majority of the  Trustees  (including a majority of the
Trustees who are not parties to the contract with PSC or  interested  persons of
any such parties) to be comparable to fees for such services being paid by other
investment companies.

   
     7.       CUSTODIAN
    

     Brown Brothers Harriman & Co. (the "Custodian"),  40 Water Street,  Boston,
Massachusetts  02109,  is the custodian of the Trust's  assets.  The Custodian's
responsibilities  include  safekeeping  and  controlling  each  Fund's  cash and
securities,  handling  the receipt and  delivery of  securities  and  collecting
interest  and  dividends  on the  Funds'  investments.  The  Custodian  does not
determine the  investment  policies of the Funds or decide which  securities the
Funds will buy or sell. The Funds may, however, invest in securities,  including
repurchase  agreements,  issued by the Custodian and may deal with the Custodian
as principal in securities  transactions.  Portfolio securities may be deposited
into the Federal Reserve-Treasury Department Book Entry System or the Depository
Trust Company.

     Pursuant to a separate  agreement  with the  Custodian,  the Custodian also
provides certain accounting services to the Trust,  including the calculation of
yield for the Funds.

   
     8.       INDEPENDENT PUBLIC ACCOUNTANTS
    

     Arthur Andersen LLP, One International Place, Boston,  Massachusetts 02110,
are the Trust's  independent public accountants,  providing audit services,  tax

                                       9
<PAGE>

return review and assistance and consultation with respect to the preparation of
filings with the SEC.

   
     9.       PORTFOLIO TRANSACTIONS
    

     The Funds  intend to fully manage  their  portfolios  by buying and selling
securities,  as well as  holding  securities  to  maturity.  In  managing  their
portfolios,  the Funds seek to take advantage of market  developments  and yield
disparities, which may include use of the following strategies:

          (1)   shortening   the  average   maturity  of  their   portfolios  in
     anticipation of a rise in interest rates so as to minimize  depreciation of
     principal;

          (2)   lengthening  the  average   maturity  of  their   portfolios  in
     anticipation of a decline in interest rates so as to maximize yield;

          (3)  selling  one  type of  debt  security  and  buying  another  when
     disparities arise in the relative values of each; and

          (4) changing  from one debt  security to an  essentially  similar debt
     security  when  their  respective  yields  appear  distorted  due to market
     factors.

     The Funds engage in portfolio  trading if they believe a transaction net of
costs (including taxes and custodian charges) will help in achieving the Trust's
investment objective.

     Decisions  relating to the purchase and sale of  securities  for the Funds,
the allocation of portfolio transactions and, where applicable,  the negotiation
of commission rates are made by officers of PMC.

     The primary  consideration in placing  portfolio  security  transactions is
execution  at the most  favorable  prices.  PMC has  complete  freedom as to the
markets  in  and  broker-dealers  through  which  it  seeks  this  result.  Debt
securities are traded principally in the over-the-counter  market on a net basis
through  dealers  acting for their own account  and not as brokers.  The cost of
securities purchased from underwriters  includes an underwriter's  commission or
concession,  and the prices at which  securities are purchased and sold from and
to dealers  include a dealer's  mark-up or mark-down.  PMC attempts to negotiate
with  underwriters  to decrease the  commission or concession for the benefit of
the Funds.  PMC normally  seeks to deal directly with the primary  market makers
unless, in its opinion,  better prices are available  elsewhere.  Subject to the
requirement of seeking execution at the best available price, securities may, as
authorized by PMC's management  contract,  be bought from or sold to dealers who
have furnished statistical research and other information or services to PMC and
the Funds.  Management believes that no exact dollar value can be calculated for
such services.

     During  the  fiscal  years  ended   December  31,  1994,   1993  and  1992,
respectively, the Funds paid no brokerage or underwriting commissions.

   
10.  TAX STATUS
    

     Federal Taxes. Each series of the Trust is treated as a separate entity for
federal income tax purposes.  It is each Fund's policy to meet the  requirements
of  Subchapter M of the Internal  Revenue Code of 1986, as amended (the "Code"),
for qualification as a regulated  investment company.  These requirements relate
to the sources of its income, diversification of its assets and the distribution
of its  income  to  shareholders.  If a Fund  meets  all such  requirements  and
distributes to its shareholders at least annually all investment company taxable
income  and net  capital  gain,  if any,  which it  receives,  the Fund  will be
relieved of the  necessity of paying  federal  income tax.  Because none of each
Fund's income is expected to arise from dividends,  no part of the distributions
to its corporate shareholders will qualify for the dividends-received  deduction
for corporations.

     Any  dividend  declared by a Fund in October,  November or December as of a
record  date in such a month  and paid  during  the  following  January  will be
treated for federal income tax purposes as received by  shareholders on December
31 of the calendar year in which it is declared.

                                       10
<PAGE>

     For federal income tax purposes, a Fund is permitted to carry forward a net
realized  capital loss in any year to offset its realized capital gains, if any,
during the eight years following the year of the loss. To the extent  subsequent
net realized  capital gains are offset by such losses,  they would not result in
federal  income tax liability to the Fund and are not expected to be distributed
as such to shareholders.

     Shareholders  of the  Pioneer  Tax Free  Money  Fund  should be aware  that
tax-exempt interest (including  "exempt-interest dividends" paid by the Fund) is
reportable  for federal  income tax  purposes  and that  shareholders  receiving
social  security  or  certain  railroad  retirement  benefits  may be subject to
federal  income  tax on up to 85% of these  benefits  as a result  of  receiving
investment income, including  exempt-interest  dividends and other distributions
paid by the Fund.  This Fund may realize  some  taxable  income from the taxable
investments described in the prospectus,  any recognized market discount income,
or a portion of discount from certain  stripped  tax-exempt  securities.  To the
extent that taxable income,  if any, is distributed to shareholders of the Fund,
the  distribution  of such taxable  income will be accounted  for on an "average
annualized" as opposed to an "actual earned" basis.  Although applicable tax law
is not  entirely  clear under all  circumstances,  the Fund  intends to take the
position that it is the tax owner of a municipal  obligation acquired subject to
a put option or standby  commitment or acquired or held with certain other types
of put rights.

     Different   tax   treatment,   including   penalties   on  certain   excess
contributions  and  deferrals,   certain   pre-retirement  and   post-retirement
distributions  and  certain  prohibited  transactions,  is  accorded to accounts
maintained as qualified retirement plans.  Shareholders should consult their tax
advisers for more information.

   
     Provided that each Fund qualifies as a regulated investment company ("RIC")
under  the  Code,  it will  not be  required  to pay any  Massachusetts  income,
corporate excise or franchise taxes. Provided that each Fund qualifies as an RIC
and meets  certain  income  source  requirements  under  Delaware Law, each Fund
should also not be required to pay Delaware corporation income tax.
    

     The exemption of exempt-interest  dividends for federal income tax purposes
does not  necessarily  result  in  exemption  under the tax laws of any state or
local taxing authority, which vary with respect to the taxation of such dividend
income.  It is possible that some states will exempt from tax that portion of an
exempt-interest  dividend which represents interest received by Pioneer Tax-Free
Money Fund on that state's  securities  or that portion of an ordinary  dividend
which  represents  interest  received by Pioneer U.S.  Government  Money Fund or
Pioneer  Cash  Reserves  Fund on  direct  obligations  of the  U.S.  Government.
Therefore,  such Funds will report annually to their shareholders the percentage
of interest income received during the preceding year,  indicating the source of
such  income.  Each  shareholder  is  advised  to  consult  his own tax  adviser
regarding the tax status of distributions from and an investment in a Fund under
applicable state or local tax law, including, in those states or localities that
impose taxes on intangible  personal property,  whether the portion of the value
of a Fund's shares  attributable  to direct  obligations of the U.S.  Government
and/or obligations issued by such state or its political subdivisions,  agencies
and instrumentalities may be exempt from such taxes.

     The description  above relates only to U.S. federal income tax consequences
for shareholders who are U.S. persons, i.e., U.S. citizens or residents, or U.S.
corporations,  partnerships,  trusts  or  estates  and who are  subject  to U.S.
federal  income  tax.  Investors  other  than U.S.  persons  may be  subject  to
different  U.S.  tax  treatment,  including  a  30%  U.S.  withholding  tax  (or
withholding tax at a lower treaty rate) on certain dividends treated as ordinary
income.  The  description  above also does not  address  the  special  tax rules
applicable to certain classes of investors,  such as banks,  insurance companies
or tax-exempt  entities.  Shareholders  should consult their own tax advisers on
these matters and on state, local and other applicable tax laws.

   
11.  DESCRIPTION OF SHARES
    

     The  Trust's  Agreement  and  Declaration  of Trust  permits  the  Board of
Trustees to authorize the issuance of an unlimited number of full and fractional
shares of beneficial interest (without par value) which may be divided into such
separate series as the Trustees may establish.  Currently, the Trust consists of

                                       11
<PAGE>

the three series named herein.  The Trustees may establish  additional series of
shares in the  future,  and may divide or combine  the shares  into a greater or
lesser number of shares without thereby  changing the  proportionate  beneficial
interests  in  the  Trust.  The  Agreement  and  Declaration  of  Trust  further
authorizes  the Trustees to classify or reclassify any series of the shares into
one or more classes. Pursuant thereto, the Trustees have authorized the issuance
of two classes of shares of Pioneer Cash Reserves Fund, Class A shares and Class
B shares.  Each share of a class of the Pioneer Cash Reserves Fund represents an
equal proportionate interest in the assets of that Fund allocable to that class.
Upon  liquidation of the Pioneer Cash Reserves Fund,  shareholders of each class
of the Fund are entitled to share pro rata in the Fund's net assets allocable to
such class available for  distribution to  shareholders.  The Trust reserves the
right to create and issue additional  series or classes of shares, in which case
the shares of each class of a series would participate  equally in the earnings,
dividends and assets allocable to that class of the particular series.

     Shareholders  are  entitled to one vote for each share held and may vote in
the  election  of  Trustees  and on  other  matters  submitted  to  meetings  of
shareholders.  Although  Trustees are not elected annually by the  shareholders,
shareholders have, under certain circumstances,  the right to remove one or more
Trustees. No amendment adversely affecting certain rights of shareholders may be
made to the Trust's  Agreement and  Declaration of Trust without the affirmative
vote of a majority  of its  shares.  Shares  have no  preemptive  or  conversion
rights.  Shares are fully paid and nonassessable by the Trust,  except as stated
below.

   
12.  CERTAIN LIABILITIES
    

     As a Delaware  business trust,  the Trust's  operations are governed by its
Agreement  and  Declaration  of Trust dated March 7, 1995. A copy of the Trust's
Certificate  of Trust,  also dated March 7, 1995,  is on file with the Office of
the Secretary of State of the State of Delaware.  Generally,  Delaware  business
trust  shareholders  are not personally  liable for  obligations of the Delaware
business  trust  under  Delaware  law.  The  Delaware  Business  Trust  Act (the
"Delaware  Act") provides that a shareholder of a Delaware  business trust shall
be entitled to the same  limitation  of liability  extended to  shareholders  of
private for-profit corporations.  The Trust's Agreement and Declaration of Trust
expressly  provides that the Trust has been organized under the Delaware Act and
that the Agreement and  Declaration  of Trust is to be governed by Delaware law.
It is nevertheless  possible that a Delaware  business trust, such as the Trust,
might become a party to an action in another state whose courts refused to apply
Delaware  law,  in which  case the  trust's  shareholders  could be  subject  to
personal liability.

     To guard  against this risk,  the Agreement  and  Declaration  of Trust (i)
contains an express disclaimer of shareholder  liability for acts or obligations
of the Trust and provides  that notice of such  disclaimer  may be given in each
agreement,  obligation and  instrument  entered into or executed by the Trust or
its Trustees, (ii) provides for the indemnification out of Trust property of any
shareholders  held  personally  liable for any  obligations  of the Trust or any
series of the  Trust and (iii)  provides  that the Trust  shall,  upon  request,
assume the  defense of any claim made  against  any  shareholder  for any act or
obligation of the Trust and satisfy any judgment  thereon.  Thus,  the risk of a
Trust shareholder  incurring financial loss beyond his or her investment because
of  shareholder  liability  is  limited  to  circumstances  in which  all of the
following  factors are present:  (1) a court refused to apply  Delaware law; (2)
the  liability  arose under tort law or, if not, no  contractual  limitation  of
liability  was in effect;  and (3) the Trust  itself would be unable to meet its
obligations.  In the light of Delaware  law, the nature of the Trust's  business
and  the  nature  of its  assets,  the  risk  of  personal  liability  to a Fund
shareholder is remote.

     The Agreement  and  Declaration  of Trust  further  provides that the Trust
shall  indemnify  each of its  Trustees  and officers  against  liabilities  and
expenses reasonably incurred by them, in connection with, or arising out of, any
action,  suit or  proceeding,  threatened  against or otherwise  involving  such
Trustee or officer,  directly or indirectly, by reason of being or having been a
Trustee or officer of the Trust. The Agreement and Declaration of Trust does not
authorize the Trust to indemnify any Trustee or officer against any liability to
which  he or she  would  otherwise  be  subject  by  reason  of or  for  willful
misfeasance,  bad faith, gross negligence or reckless disregard of such person's
duties.

                                       12
<PAGE>

   
13.  DETERMINATION OF NET ASSET VALUE
    

     The net asset  value  per share of each  class of each Fund in the Trust is
determined  as of the close of regular  trading  on the New York Stock  Exchange
(the "Exchange")  (normally 4:00 p.m., Eastern Time) on each day the Exchange is
open for business.  As of the date of this Statement of Additional  Information,
these  institutions are open for business every weekday except for the following
holidays:   New  Year's  Day,  Presidents'  Day,  Good  Friday,   Memorial  Day,
Independence  Day, Labor Day,  Thanksgiving Day and Christmas Day. The net asset
value per share of each class of each Fund is also  determined  on any other day
in which the level of trading in its portfolio  securities is sufficiently  high
that the  current  net asset  value per share  might be  materially  affected by
changes  in the  value  of its  portfolio  securities.  On any day in  which  no
purchase  orders for the  shares of a Fund  become  effective  and no shares are
tendered  for  redemption,  such  Fund's  net  asset  value per share may not be
determined.

     The net asset  value per share of each  class of each Fund is  computed  by
taking  the  amount of the  value of all of a Fund's  assets  attributable  to a
class,  less its  liabilities  attributable  to a class,  and dividing it by the
number of  outstanding  shares of that class.  For purposes of  determining  net
asset  value,  expenses of each class of each Fund are  accrued  daily and taken
into account.

     Except as set  forth in the  following  paragraph,  each  Fund's  portfolio
investments  are valued on each business day on the basis of amortized  cost, if
the Board of Trustees  determines  in good faith that such  method  approximates
fair value.  This  technique  involves  valuing an  instrument  at its cost and,
thereafter,  assuming a constant  amortization  to maturity  of any  discount or
premium,  regardless of the impact of  fluctuating  interest rates on the market
value of the instrument.  While this method provides certainty in valuation,  it
may result in periods  during which value,  as determined by amortized  cost, is
higher  or  lower  than  the  price  such  Fund  would  receive  if it sold  the
investment.  During periods of declining  interest rates, the yield on shares of
the  Funds  computed  as  described  below  may  tend to be  higher  than a like
computation  made by a fund with  identical  investments  utilizing  a method of
valuation based upon market prices and estimates of market prices for all of its
portfolio investments.  Thus, if the use of amortized cost by the Funds resulted
in a lower aggregate portfolio value on a particular day, a prospective investor
in a Fund would be able to obtain a somewhat higher yield than would result from
investment in a fund utilizing solely market values. The converse would apply in
a period of rising interest rates.

     Standby  commitments will be valued at zero in determining net asset value.
"When-issued" securities will be valued at the value of the security at the time
the commitment to purchase is entered into.

     The  valuation  of  the  Funds'  portfolio  investments  based  upon  their
amortized cost and the concomitant  expectation to maintain the Funds' per share
net asset value of $1.00 is  permitted  in  accordance  with Rule 2a-7 under the
1940 Act pursuant to which the Funds must adhere to certain conditions which are
described in detail in the Prospectus. The Funds must maintain a dollar-weighted
average  portfolio  maturity of 90 days or less. The maturities of variable rate
demand instruments held in the Funds' portfolios will be deemed to be the longer
of the  demand  period or the  period  remaining  until the next  interest  rate
adjustment,  although  stated  maturities  may be in  excess  of one  year.  The
Trustees  have  established  procedures  designed  to  stabilize,  to the extent
reasonably  possible,  the price  per  share of each  class of each Fund for the
purpose  of  maintaining  sales and  redemptions  at a single  value.  It is the
intention  of each Fund to  maintain  each class'  per-share  net asset value of
$1.00 but there can be no assurance of this. Such procedures will include review
of the Funds' portfolio holdings by the Trustees,  at such intervals as they may
deem  appropriate,  to  determine  whether  the Funds' net asset value per class
calculated by using available  market  quotations  deviates from $1.00 per share
and,  if so,  whether  such  deviation  may result in  material  dilution  or is
otherwise unfair to existing  shareholders.  In the event the Trustees determine
that such a deviation exists, they have agreed to take such corrective action as
they regard as necessary and appropriate,  including:  (i) the sale of portfolio
instruments  prior to maturity to realize  capital gains or losses or to shorten
average portfolio maturity;  (ii) withholding dividends;  (iii) redeeming shares
in kind;  or (iv)  establishing  a net asset value per share by using  available
market quotations.

                                       13
<PAGE>

   
14.  SYSTEMATIC WITHDRAWAL PLAN
    

     The Systematic  Withdrawal Plan is designed to provide a convenient  method
of receiving fixed payments at regular  intervals from shares of any Fund in the
Trust deposited by the applicant under this Plan. Withdrawals from Class B share
accounts  are limited to 10% of the value of the account at the time the plan is
implemented (see the Prospectus).  You must deposit or purchase for deposit with
PSC shares of any Fund having a total value of not less than  $10,000.  Periodic
payments of $50 or more will be deposited  monthly or quarterly  directly into a
bank account designated by you, or will be sent to you, or any person designated
by you.

     Any income  dividends or capital  gains  distributions  on shares under the
Systematic  Withdrawal  Plan will be credited to the Plan account on the payment
date in full and fractional shares at the net asset value per share in effect on
the record date.

     Systematic  Withdrawal  Plan  payments  are made from the  proceeds  of the
redemption of shares  deposited under the Plan in a Plan account.  To the extent
that such redemptions for periodic withdrawals exceed dividend income reinvested
in the Plan account, such redemptions will reduce and may ultimately exhaust the
number of  shares  deposited  in the Plan  account.  In  addition,  the  amounts
received by a  shareholder  cannot be considered as an actual yield or income on
his or her  investment  because part of such  payments may be a return of his or
her capital.

     The Systematic Withdrawal Plan may be terminated at any time (1) by written
notice  to PSC or  from  PSC to the  shareholder;  (2)  upon  receipt  by PSC of
appropriate  evidence of the  shareholder's  death; or (3) when all shares under
the  Plan  have  been  redeemed.  The  fees  of PSC for  maintaining  Systematic
Withdrawal Plans are paid by the Trust.

   
15.  INVESTMENT RESULTS
    

     From time to time, the Funds will provide yield  quotations for Class A and
Class B shares.  These quotations are calculated by standard methods  prescribed
by the SEC and may from time to time be used in the Funds' Prospectus, Statement
of  Additional  Information,   advertisements,   shareholder  reports  or  other
communications  to shareholders.  However,  these yield quotations should not be
considered  as  representative  of the  performance  of the Funds in the  future
since,  unlike some bank deposits or other  investments  which pay a fixed yield
for a stated  period of time,  the  yields of the Funds  will vary  based on the
type,  quality  and  maturities  of the  securities  held in  their  portfolios,
fluctuations in short-term interest rates and changes in their expenses.

     The Funds' yield quotations are computed using the appropriate  figures for
a particular  class as follows:  the net change,  exclusive  of capital  changes
(i.e.,  realized  gains and losses from the sale of  securities  and  unrealized
appreciation  and  depreciation),  in the value of a  hypothetical  pre-existing
Class A or B share account having a balance of one share at the beginning of the
seven-day  base  period is  determined  by  subtracting  a  hypothetical  charge
reflecting  expense deductions from the hypothetical  account,  and dividing the
net  change  in value by the  value of the  share at the  beginning  of the base
period.  This base period return is then  multiplied by 365/7 with the resulting
yield figure carried to the nearest 100th of 1%. The determination of net change
in  account  value  reflects  the  value of  additional  shares  purchased  with
dividends from the original share, dividends declared on both the original share
and any such  additional  shares,  and all fees that are charged to the Fund, in
proportion to the length of the base period and the Fund's average  account size
(with respect to any fees that vary with the size of an account).

     The Funds may also advertise quotations of effective yield. Effective yield
is computed by compounding the unannualized  base period return determined as in
the preceding  paragraph by adding 1 to the base period return,  raising the sum
to a power  equal to 365  divided  by 7, and  subtracting  one from the  result,
according to the following formula:

              Effective Yield = (base period return + 1) 365/7 - 1

     The yield and effective  yield of the Funds for the seven-day  period ended
December 31, 1994 are as follows:

                                       14
<PAGE>

<TABLE>
<CAPTION>
                              Before Expense Limitation                      After Expense Limitation
                                                 Effective                                      Effective
Class A Shares              Yield                  Yield                   Yield                  Yield

<S>                         <C>                    <C>                     <C>                    <C>    
   
Pioneer Cash
Reserves Fund               4.64%                  4.75%                   4.91%                  5.03%

Pioneer U.S.
Government Money
Fund                        4.24%                  4.34%                   5.03%                  5.15%

Pioneer Tax-Free
Money Fund                  1.56%                  1.59%                   4.63%                  4.73%
    
</TABLE>

Class B shares are a new class of shares  first  offered on the date  hereof for
Pioneer Cash Reserves Fund only.

   
     Pioneer  Tax-Free  Money Fund's taxable  equivalent  yield is determined by
dividing that portion of the Fund's yield  (calculated as described  above) that
is tax exempt by one minus a stated marginal federal income tax rate. The Fund's
taxable equivalent effective yield is determined by dividing that portion of the
Fund's effective yield (calculated as described above) that is tax exempt by one
minus a stated marginal  federal income tax rate. The Fund's taxable  equivalent
yield and taxable  equivalent  effective  yield  assume that the  proportion  of
income  of the  Fund  that is tax  exempt  over  the  seven-day  period  used in
determining the yield and effective  yield  quotations will be constant over the
52-week period over which such yield quotations are annualized. Pioneer Tax-Free
Money Fund's taxable equivalent yield and taxable equivalent effective yield for
the 7-day period ended  December 31, 1994,  for an investor in the 39.6% federal
income tax  bracket  were  7.67% and 7.83%,  respectively,  except  that  absent
expense limitations,  the Fund's taxable equivalent yield and taxable equivalent
effective yield would have been 2.58% and 2.63%, respectively.
    
     Automated   Information  Line  (FactFone).   FactFone,   Pioneer's  24-hour
automated information line, allows shareholders to dial toll-free 1-800-225-4321
and hear recorded fund information, including:

     o    net asset value prices for all Pioneer Funds;

     o    annualized 30-day yields on Pioneer's fixed income funds;

     o    annualized  7-day  yields and 7-day  effective  (compound)  yields for
          Pioneer's money market funds; and

     o    dividends and capital gains distributions on all funds.

     Yields are calculated in accordance with SEC mandated standard formulas.

     In addition, by using a personal identification number (PIN),  shareholders
may access their  account  balance and last three  transactions  and may order a
duplicate statement.

     All  performance  numbers  communicated  through  FactFone  represent  past
performance,  and  figures  for  all  quoted  bond  funds  include  the  maximum
applicable sales charge. A shareholder's actual yield and total return will vary
with changing market  conditions.  The value of shares (except for Pioneer money
market  funds,  which seek a stable $1.00 share price) will also vary and may be
worth more or less at redemption than their original cost.




                                       15
<PAGE>


                                   APPENDIX A

                   Description of Municipal Bond, Short-Term
                       Note and Commercial Paper Ratings1

                        Moody's Investors Service, Inc.2

Municipal Bonds

     Aaa:  Bonds which are rated Aaa are judged to be of the best quality.  They
carry the smallest  degree of investment  risk and are generally  referred to as
"gilt edge." Interest  payments are protected by a large or by an  exceptionally
stable margin and principal is secure. While the various protective elements are
likely to change,  such changes as can be visualized are most unlikely to impair
the fundamentally strong position of such issues.

     Aa:  Bonds  which are  rated Aa are  judged  to be of high  quality  by all
standards. Together with the Aaa group they comprise what are generally known as
high grade bonds.  They are rated lower than the best bonds  because  margins of
protection  may not be as  large  as in Aaa  securities  or the  fluctuation  of
protective  elements may be of greater  amplitude or there may be other elements
present  which make the  long-term  risks  appear  somewhat  bigger  than in Aaa
securities.

Municipal Short-Term Notes

     MIG-1:  Notes which are rated  MIG-1 are judged to be of the best  quality,
enjoying strong  protection from  established  cash flows for their servicing or
from established and broad-based access to the market for refinancing, or both.

     MIG-2:  Notes which are rated MIG-2 are judged to be of high quality,  with
margins of protection ample though not so large as in the MIG-1 group.

Commercial Paper

     P-1: P-1 is the highest commercial paper rating assigned by Moody's.  Among
the factors  considered by Moody's in assigning  ratings are the following:  (i)
evaluation  of the  management of the issuer;  (ii)  economic  evaluation of the
issuer's industry or industries and an appraisal of speculative-type risks which
may be inherent in certain areas;  (iii) evaluation of the issuer's  products in
relation to competition and customer acceptance;  (iv) liquidity; (v) amount and
quality of long-term  debt;  (vi) trend of earnings  over a period of ten years;
(vii) financial strength of any parent company and the relationships which exist
with  the  issuer;  and  (viii)  recognition  by  management  of the  issuer  of
obligations  which may be  present  or may arise as a result of public  interest
questions and preparations to meet such obligations.

                                      A-1
<PAGE>

                        Standard & Poor's Ratings Group3

Municipal Bonds

     AAA: Bonds rated AAA are highest grade  obligations.  This rating indicates
an extremely strong capacity to pay principal and interest.

     AA: Bonds rated AA also qualify as  high-quality  obligations.  Capacity to
pay principal and interest is very strong, and in the majority of instances they
differ from AAA issues only in small degree.

Municipal Short-Term Notes

     SP-1+:  Notes which are rated  SP-1+ are judged to be of the best  quality,
enjoying overwhelming safety characteristics.

     SP-1:  Notes which are rated SP-1 have a very strong or strong  capacity to
pay principal and interest.

Commercial Paper

     A-1:   Commercial   paper   rated   A-1  or   better   has  the   following
characteristics:  (i) the liquidity ratio of its issuer is adequate to meet cash
requirements; (ii) its issuer has outstanding debt rated AA or better; (iii) the
issuer has access to at least two additional sources of borrowing;  and (iv) the
issuer's  basic  earnings and cash flow have an upward trend with allowance made
for unusual circumstances. Typically, the issuer's industry is judged to be well
established and the issuer has a strong position within the industry.

                                      A-2
<PAGE>


   
                                   APPENDIX B

                           OTHER PIONEER INFORMATION




         The Pioneer  family of mutual  funds was  established  in 1928 with the
creation of Pioneer  Fund.  Pioneer is one of the  oldest,  most  respected  and
successful money managers in the United States.

         As of December 31, 1994, PMC employed a professional  investment  staff
of 46, with a combined average of 14 years' experience in the financial services
industry.

         At December 31, 1994,  there were  591,192  non-retirement  shareholder
acccounts and 337,577 retirement  shareholder accounts in Pioneer's funds. Total
assets  for all  Pioneer  Funds  were  $10,038,000,000  representing  a total of
928,769 shareholder accounts.
    







<PAGE>


                           PIONEER MONEY MARKET TRUST


                           PART C. OTHER INFORMATION

   
Item 24.  Financial Statements and Exhibits
    

              (a)     Financial Statements:

   
                      The   financial   statements   of   the   Registrant   are
                      incorporated  by reference  from the 1994 Annual Report to
                      Shareholders  which is incorporated by reference into Part
                      B,  the  Statement  of  Additional  Information.  The 1994
                      Annual  Report  to  Shareholders  is  attached  hereto  as
                      Exhibit 12.
    

              (b)     Exhibits:

   
                           1.       Agreement and Declaration of Trust (Delaware
                                    Business Trust)_

                           2.       By-laws (Delaware Business Trust)_
    

                           3.       None

   
                           4.       Specimen Stock Certificate_

                           5.       Management Contract between  Registrant,  on
                                    behalf  of  each  series,   and   Pioneering
                                    Management   Corporation   and  schedule  of
                                    substantially similar omitted documents_

                           6.       Underwriting  Agreement between  Registrant,
                                    on behalf of each series,  and Pioneer Funds
                                    Distributor, Inc._
    

                           7.       None

   
                           8.       Custodian   Agreement  with  Brown  Brothers
                                    Harriman & Co._

                           9.       Investment Company Service Agreement_

                           10.      Opinion  of  Morris,   Nichols,   Arsht  and
                                    Tunnell_
    

                           11.      Consent of Arthur Andersen LLP_

   
                           12.      1994 Annual Report to Shareholders_
    

                           13.      Stock Purchase Agreement_

                           14.      None

   
                           15a.     Class  B Rule  12b-1  Distribution  Plan  on
                                    behalf of Pioneer Cash Reserves Fund_

                           15b.     Amended  Class  A  Rule  12b-1  Distribution
                                    Plan_

                           16.      Description  of Average  Annual Total Return
                                    and Yield Calculation_


<PAGE>
    

                           17.      Financial Data Schedules

   
                           18.      Powers of Attorney_
    


------------------------
_ Filed herewith.


Item 25.      Persons Controlled By or Under
              Common Control With Registrant

   
     The Pioneer Group, Inc., a Delaware corporation  ("PGI"),  owns 100% of the
outstanding  capital  stock of  Pioneering  Management  Corporation,  a Delaware
corporation ("PMC"),  Pioneering Services  Corporation ("PSC"),  Pioneer Capital
Corporation ("PCC"),  Pioneer Fonds Marketing GmbH ("GmbH"),  Pioneer SBIC Corp.
("SBIC"), Pioneer Associates,  Inc., Pioneer International Corporation,  Pioneer
Plans  Corporation  ("PPC"),  Pioneer  Goldfields  Limited ("PGL"),  and Pioneer
Investments Corporation ("PIC"), all Massachusetts  corporations.  PGI also owns
100% of the  outstanding  capital stock of Pioneer Metals and  Technology,  Inc.
("PMT"), a Delaware corporation, and Pioneer First Polish Trust Fund Joint Stock
Company ("First Polish"), a Polish corporation.  PGI owns 90% of the outstanding
shares of  Teberebie  Goldfields  Limited  ("TGL").  Pioneer  Winthrop  Advisers
("PWA"), a Massachusetts general partnership, is a joint venture between PGI and
Winthrop  Financial  Associates,  a  Limited  Partnership,  a  Delaware  limited
partnership. Pioneer Fund, Pioneer II, Pioneer Three, Pioneer Bond Fund, Pioneer
Intermediate  Tax-Free Fund, Pioneer Growth Trust,  Pioneer Europe Fund, Pioneer
International  Growth Fund,  Pioneer  Short-Term Income Trust,  Pioneer Tax-Free
State Series Trust, Pioneer Money Market Trust, Pioneer America Income Trust and
the Registrant  (each of the foregoing,  a Massachusetts  business  trust),  and
Pioneer  Interest  Shares,  Inc. (a  Nebraska  corporation)  and Pioneer  Growth
Shares,  Pioneer Income Fund,  Pioneer India Fund,  Pioneer Tax-Free Income Fund
and Pioneer  Emerging Markets Fund (each of the foregoing,  a Delaware  business
trust) are all parties to management  contracts with PMC.  Pioneer Winthrop Real
Estate Investment Fund is a party to a sub-investment  management  contract with
PMC.  PMC  owns  100%  of  the  outstanding   capital  stock  of  Pioneer  Funds
Distributor,  Inc. ("PFD"),  a Massachusetts  corporation.  PCC owns 100% of the
outstanding  capital stock of SBIC.  SBIC is the sole general partner of Pioneer
Ventures  Limited  Partnership,  a Massachusetts  limited  partnership.  John F.
Cogan, Jr. owns approximately 15% of the outstanding shares of PGI. Mr. Cogan is
Chairman of the Board,  President and Trustee of the  Registrant  and of each of
the Pioneer investment  companies;  Director and President of PGI; President and
Director of PPC, PIC, Pioneer International Corporation and PMT; Director of PCC
and PSC;  Chairman  of the Board and  Director  of PMC,  PFD and TGL;  Chairman,
President  and  Director  of PGL;  Chairman  of the  Supervisory  Board of GmbH;
Chairman and Chief Executive  Officer of PWA; Chairman and Member of Supervisory
Board of First Polish; and Partner, Hale and Dorr.
    


Item 26.      Number of Holders of Securities

              The following  table sets forth the  approximate  number of record
holders of each class of securities of the Registrant as of December 31, 1994:

                                                         Number of
                 Title of Class                        Record Holders

Shares of Pioneer Cash Reserves Fund                       14,873

   
Shares of Pioneer U.S. Government Money Fund                1,736
    

Shares of Pioneer Tax-Free Money Fund                         398


Item 27.      Indemnification

              Except  pursuant  to  the  Agreement  and  Declaration  of  Trust,
establishing the Registrant as a Trust under Delaware law, there is no contract,

<PAGE>

arrangement  or  statute  under  which any  director,  officer,  underwriter  or
affiliated person of the Registrant is insured or indemnified. The Agreement and
Declaration  of Trust  provides  that no Trustee or officer will be  indemnified
against any  liability  to which the  Registrant  would  otherwise be subject by
reason of willful misfeasance, bad faith, gross negligence or reckless disregard
of such person's duties.


Item 28.      Business and Other Connections of Investment Adviser

              All of the  information  required by this item is set forth in the
Forms ADV, as amended,  of  Pioneering  Management  Corporation.  The  following
sections of such Forms ADV are incorporated herein by reference:

              (a)     Items 1 and 2 of Part 2;

              (b)     Section 6, Business Background, of each
                      Schedule D.


Item 29.      Principal Underwriter

              (a)     See Item 25 above.

              (b)     Directors and Officers of PFD:
<TABLE>
<CAPTION>

                                 Positions and Offices                     Positions and Offices
Name                               with Underwriter                           with Registrant

<S>                              <C>                                       <C>                      
John F. Cogan, Jr.               Director and Chairman                     Chairman of the Board,
                                                                           President and Trustee

Robert L. Butler                 Director and President                    None

David D. Tripple                 Director                                  Executive Vice
                                                                           President and Trustee

Steven M. Graziano               Senior Vice President                     None

Stephen W. Long                  Senior Vice President                     None

John C. Drachman                 Vice President                            None

Barry G. Knight                  Vice President                            None

William A. Misata                Vice President                            None

Anne W. Patenaude                Vice President                            None

Elizabeth Rice                   Vice President                            None

Gail A. Smyth                    Vice President                            None

Constance S. Spiros              Vice President                            None

Marcy Supovitz                   Vice President                            None

Steven R. Berke                  Assistant Vice                            None
                                 President

Mary Sue Hoban                   Assistant Vice                            None
                                 President

William H. Keough                Treasurer                                 Treasurer

Roy P. Rossi                     Assistant Treasurer                       None

Joseph P. Barri                  Clerk                                     Secretary
</TABLE>


              (c) Not applicable.

<PAGE>

Item 30.      Location of Accounts and Records

              The accounts and records are maintained at the Registrant's office
at 60 State Street, Boston, Massachusetts 02109; contact the Treasurer.


Item 31.      Management Services

              The  Registrant  is a  party  to one  contract,  described  in the
Prospectus and the Statement of Additional Information,  under which it receives
management and advisory services from Pioneering Management Corporation.


Item 32.  Undertakings

              The Registrant  hereby undertakes to furnish each person to whom a
prospectus is delivered with a copy of the Registrant's  latest Annual Report to
shareholders upon request and without charge.




<PAGE>

                                   SIGNATURES

   
     Pursuant  to  the  requirements  of the  Securities  Act of  1933  and  the
Investment   Company  Act  of  1940,   the   Registrant  has  duly  caused  this
post-effective  amendment no. 12 to the Registration Statement (the "Amendment")
to be signed on its behalf by the undersigned, thereunto duly authorized, in the
City of Boston  and  Commonwealth  of  Massachusetts,  on the 27th day of March,
1995.
    

                                        PIONEER MONEY MARKET TRUST

                                        By:/s/ John F. Cogan, Jr.
                                           John F. Cogan, Jr.,
                                           President

   
     Pursuant to the  requirements of the Securities Act of 1933, this Amendment
No. 11 has been signed below by the following  persons in the  capacities and on
the dates indicated:
    

     Signature                                               Date

   
Principal Executive Officer:   )
                               )
/s/John F. Cogan, Jr.*         )
John F. Cogan, Jr.             )
                               )
                               )
Principal Financial and        )
Accounting Officer:            )
                               )
/s/William H. Keough*          )
William H. Keough              )



A MAJORITY OF THE BOARD OF TRUSTEES:

                                )
/s/John F. Cogan, Jr.*          )
John F. Cogan, Jr.              )
                                )
/s/Richard H. Egdahl, M.D.*     )
Richard H. Egdahl, M.D.         )
                                )
/s/John W. Kendrick*            )
John W. Kendrick                )
                                )
/s/Marguerite A. Piret*         )
Marguerite A. Piret             )
                                )
/s/David D. Tripple*            )
David D. Tripple                )
                                )
/s/Stephen K. West*             )
Stephen K. West                 )
                                )
/s/John Winthrop*               )
John Winthrop                   )
                                )
/s/Margaret B.W. Graham*        )
Margaret B.W. Graham


*By  /s/Joseph P. Barri                                   March 27, 1995
     ---------------------------                                        
     Joseph P. Barri
     Attorney-in-Fact

    
<PAGE>

                                 Exhibit Index
   

Exhibit
Number         Document Title

               1.   Agreement and Declaration of Trust (Delaware Business Trust)

               2.   By-laws (Delaware Business Trust)

               3.   None

               4.   Specimen Stock Certificate

               5.   Management  Contract between  Registrant,  on behalf of each
                    series, and Pioneering  Management  Corporation and schedule
                    of substantially similar omitted documents

               6.   Underwriting Agreement between Registrant, on behalf of each
                    series, and Pioneer Funds Distributor, Inc.

               7.   None

               8.1  Custodian Agreement with Brown Brothers Harriman & Co.

               9.   Investment Company Service Agreement

               10.  Opinion of Morris, Nichols, Arsht and Tunnell

               11.  Consent of Arthur Andersen LLP

               12.  1994 Annual Report to Shareholders

               13.  Stock Purchase Agreement

               14.  None

               15a. Class B Rule  12b-1  Distribution  Plan on behalf of Pioneer
                    Cash Reserves Fund

               15b. Amended Class A Rule 12b-1 Distribution Plan

               16.  Description   of  Average  Annual  Total  Return  and  Yield
                    Calculation

               17.  Financial Data Schedules

               18.  Power of Attorney

    


                          PIONEER MONEY MARKET TRUST
                      AGREEMENT AND DECLARATION OF TRUST

     This AGREEMENT AND  DECLARATION OF TRUST is made on February , 1995 by John
F. Cogan,  Jr.,  Richard H. Egdahl,  Margaret  B.W.  Graham,  John W.  Kendrick,
Marguerite  R.  Piret,  David D.  Tripple,  Stephen  K.  West and John  Winthrop
(together  with all other persons from time to time duly elected,  qualified and
serving as Trustees in accordance with the provisions of Article II hereof,  the
"Trustees").

     NOW,   THEREFORE,   the  Trustees  declare  that  all  money  and  property
contributed  to the Trust  shall be held and  managed in trust  pursuant to this
Agreement and Declaration of Trust.

                                  ARTICLE I
                             NAME AND DEFINITIONS

     Section  1.  Name.  The name of the Trust  created  by this  Agreement  and
Declaration of Trust is "Pioneer Money Market Trust."

     Section 2.  Definitions.  Unless  otherwise  provided  or  required  by the
context:

     (a) "Administrator"  means the party, other than the Trust, to the contract
described in Article III, Section 3 hereof.

     (b) "By-laws"  means the By-laws of the Trust  adopted by the Trustees,  as
amended from time to time,  which By-laws are expressly  herein  incorporated by
reference  as part of the  "governing  instrument"  within  the  meaning  of the
Delaware Act.

     (c) "Class" means the class of Shares of a Series  established  pursuant to
Article V.

     (d) "Commission,"  "Interested Person" and "Principal Underwriter" have the
meanings  provided in the 1940 Act. Except as such term may be otherwise defined
by the Trustees in conjunction  with the  establishment of any Series of Shares,
the term "vote of a majority  of the Shares  outstanding  and  entitled to vote"
shall have the same  meaning as is  assigned  to the term "vote of a majority of
the outstanding voting securities" in the 1940 Act.

     (e) "Covered Person" means a person so defined in Article IV, Section 2.

     (f)  "Custodian"  means any Person  other than the Trust who has custody of
any Trust  Property as required by Section  17(f) of the 1940 Act,  but does not
include a system  for the  central  handling  of  securities  described  in said
Section 17(f).

     (g)  "Declaration"  shall mean this Agreement and  Declaration of Trust, as
amended or restated from time to time. Reference in this Declaration of Trust to

                                      E-1


<PAGE>




"Declaration,"  "hereof,"  "herein," and "hereunder" shall be deemed to refer to
this Declaration rather than exclusively to the article or section in which such
words appear.

     (h)  "Delaware  Act"  means  Chapter  38 of Title 12 of the  Delaware  Code
entitled "Treatment of Delaware Business Trusts," as amended from time to time.

     (i)  "Distributor"  means the party,  other than the Trust, to the contract
described in Article III, Section 1 hereof.

     (j) "His" shall include the feminine and neuter,  as well as the masculine,
genders.

     (k)  "Investment  Adviser"  means the party,  other than the Trust,  to the
contract described in Article III, Section 2 hereof.

     (l) "Net Asset  Value" means the net asset value of each Series or Class of
the Trust, determined as provided in Article VI, Section 3.

     (m) "Person" means and includes  individuals,  corporations,  partnerships,
trusts,   associations,   joint  ventures,   estates  and  other  entities,  and
governments and agencies and political subdivisions thereof, whether domestic or
foreign.

     (n) "Series" means a series of Shares established pursuant to Article V.

     (o) "Shareholder" means a record owner of Outstanding Shares;

     (p) "Shares" means the equal  proportionate  transferable units of interest
into which the beneficial  interest of each Series or Class is divided from time
to time (including whole Shares and fractions of Shares).  "Outstanding  Shares"
means  Shares  shown in the  books of the  Trust or its  transfer  agent as then
issued and outstanding,  but does not include Shares which have been repurchased
or redeemed by the Trust and which are held in the treasury of the Trust.

     (q)  "Transfer  Agent" means any Person other than the Trust who  maintains
the  Shareholder  records of the Trust,  such as the list of  Shareholders,  the
number of Shares credited to each account, and the like.

     (r) "Trust"  means  Pioneer  Money Market  Trust  established  hereby,  and
reference to the Trust, when applicable to one or more Series or Classes, refers
to such Series or Classes.

     (s) "Trustees" means the persons who have signed this Declaration of Trust,
so long as they shall  continue in office in  accordance  with the terms hereof,
and all other persons who may from time to time be duly qualified and serving as
Trustees in  accordance  with  Article II, in all cases in their  capacities  as
Trustees hereunder.

     (t) "Trust Property" means any and all property, real or personal, tangible
or  intangible,  which is owned or held by or for the Trust or any Series or the
Trustees on behalf of the Trust or any Series.

     (u) The "1940 Act" means the  Investment  Company  Act of 1940,  as amended
from time to time.

                                      E-2


<PAGE>




                                  ARTICLE II
                                 THE TRUSTEES

     Section 1.  Management of the Trust.  The business and affairs of the Trust
shall be managed by or under the direction of the Trustees,  and they shall have
all powers necessary or desirable to carry out that responsibility. The Trustees
may execute all instruments and take all action they deem necessary or desirable
to promote the interests of the Trust. Any determination made by the Trustees in
good faith as to what is in the interests of the Trust shall be  conclusive.  In
construing the provisions of this Declaration, the presumption shall be in favor
of a grant of power to the Trustees.

     Section 2. Powers.  The Trustees in all instances  shall act as principals,
free of the control of the Shareholders.  The Trustees shall have full power and
authority to take or refrain from taking any action and to execute any contracts
and instruments that they may consider  necessary or desirable in the management
of the Trust.  The Trustees  shall not in any way be bound or limited by current
or future laws or customs applicable to trust  investments,  but shall have full
power  and  authority  to  make  any  investments  which  they,  in  their  sole
discretion,  deem proper to accomplish  the purposes of the Trust.  The Trustees
may  exercise  all of  their  powers  without  recourse  to any  court  or other
authority.  Subject to any  applicable  limitation  herein or in the  By-laws or
resolutions of the Trust,  the Trustees shall have power and authority,  without
limitation:

     (a) To operate as and carry on the business of an investment  company,  and
exercise  all the  powers  necessary  and  appropriate  to the  conduct  of such
operations.

     (b) To invest in, hold for  investment,  or reinvest in, cash;  securities,
including  common,  preferred  and  preference  stocks;  warrants;  subscription
rights;  profit-sharing  interests or participations and all other contracts for
or evidence of equity interests;  bonds,  debentures,  bills, time notes and all
other  evidences of  indebtedness;  negotiable  or  non-negotiable  instruments;
government securities,  including securities of any state, municipality or other
political subdivision thereof, or any governmental or quasi-governmental  agency
or instrumentality;  and money market instruments including bank certificates of
deposit,  finance paper, commercial paper, bankers' acceptances and all kinds of
repurchase agreements, of any corporation,  company, trust, association, firm or
other business  organization  however  established,  and of any country,  state,
municipality   or  other   political   subdivision,   or  any   governmental  or
quasi-governmental agency or instrumentality; or any other security, property or
instrument  in which  the  Trust or any of its  Series  shall be  authorized  to
invest.

     (c) To acquire (by purchase,  subscription or otherwise), to hold, to trade
in and deal in, to acquire any rights or options to purchase or sell, to sell or
otherwise  dispose of, to lend and to pledge any such securities,  to enter into
repurchase agreements, reverse repurchase agreements, firm commitment agreements
and forward foreign currency exchange contracts, to purchase and sell options on
securities,  securities  indices,  currency and other financial assets,  futures
contracts and options on futures  contracts of all descriptions and to engage in
all types of hedging and risk-management transactions.

                                      E-3


<PAGE>




     (d) To exercise all rights,  powers and privileges of ownership or interest
in all  securities  and repurchase  agreements  included in the Trust  Property,
including the right to vote thereon and  otherwise act with respect  thereto and
to do all acts for the preservation,  protection, improvement and enhancement in
value of all such securities and repurchase agreements.

     (e) To  acquire  (by  purchase,  lease  or  otherwise)  and to  hold,  use,
maintain,  develop and dispose of (by sale or otherwise)  any property,  real or
personal, including cash or foreign currency, and any interest therein.

     (f) To borrow money or other property in the name of the Trust  exclusively
for Trust  purposes  and in this  connection  issue  notes or other  evidence of
indebtedness;  to  secure  borrowings  by  mortgaging,   pledging  or  otherwise
subjecting  as  security  the Trust  Property;  and to  endorse,  guarantee,  or
undertake the  performance  of any  obligation or engagement of any other Person
and to lend Trust Property.

     (g)  To  aid  by  further  investment  any  corporation,   company,  trust,
association  or firm,  any obligation of or interest in which is included in the
Trust  Property  or in the  affairs  of which the  Trustees  have any  direct or
indirect  interest;  to do all acts and things  designed to  protect,  preserve,
improve or enhance the value of such obligation or interest; and to guarantee or
become surety on any or all of the contracts,  stocks, bonds, notes,  debentures
and other obligations of any such corporation,  company,  trust,  association or
firm.

     (h) To adopt By-laws not inconsistent  with this Declaration  providing for
the  conduct of the  business  of the Trust and to amend and repeal  them to the
extent such right is not reserved to the Shareholders.

     (i) To elect and remove such officers and appoint and terminate such agents
as they deem appropriate.

     (j) To employ as  custodian  of any  assets of the  Trust,  subject  to any
provisions  herein or in the  By-laws,  one or more banks,  trust  companies  or
companies that are members of a national securities exchange,  or other entities
permitted by the Commission to serve as such.

     (k) To retain one or more transfer agents and shareholder servicing agents,
or both.

     (l) To provide for the  distribution  of Shares either  through a Principal
Underwriter as provided herein or by the Trust itself, or both, or pursuant to a
distribution plan of any kind.

     (m) To set  record  dates  in the  manner  provided  for  herein  or in the
By-laws.

     (n) To delegate such  authority as they consider  desirable to any officers
of the Trust  and to any  agent,  independent  contractor,  manager,  investment
adviser, custodian or underwriter.

                                      E-4


<PAGE>




     (o) To hold any security or other property (i) in a form not indicating any
trust, whether in bearer, book entry,  unregistered or other negotiable form, or
(ii) either in the Trust's or  Trustees'  own name or in the name of a custodian
or a nominee or nominees,  subject to safeguards according to the usual practice
of business trusts or investment companies.

     (p) To  establish  separate  and distinct  Series with  separately  defined
investment  objectives and policies and distinct investment  purposes,  and with
separate  Shares  representing  beneficial  interests  in  such  Series,  and to
establish separate Classes, all in accordance with the provisions of Article V.

     (q) To the full extent  permitted by Section  3804 of the Delaware  Act, to
allocate  assets,  liabilities and expenses of the Trust to a particular  Series
and assets,  liabilities and expenses to a particular  Class or to apportion the
same  between  or  among  two or more  Series  or  Classes,  provided  that  any
liabilities  or  expenses  incurred  by a  particular  Series or Class  shall be
payable  solely out of the assets  belonging to that Series or Class as provided
for in Article V, Section 4.

     (r) To  consent  to or  participate  in any  plan  for the  reorganization,
consolidation  or merger of any corporation or concern whose securities are held
by the Trust; to consent to any contract, lease, mortgage,  purchase, or sale of
property by such corporation or concern;  and to pay calls or subscriptions with
respect to any security held in the Trust.

     (s) To  compromise,  arbitrate,  or otherwise  adjust claims in favor of or
against the Trust or any matter in  controversy  including,  but not limited to,
claims for taxes.

     (t) To make distributions of income,  capital gains, returns of capital (if
any) and redemption proceeds to Shareholders in the manner hereinafter  provided
for.

     (u) To establish  committees for such purposes,  with such membership,  and
with such  responsibilities  as the Trustees may  consider  proper,  including a
committee consisting of fewer than all of the Trustees then in office, which may
act for and bind the  Trustees  and the Trust with  respect to the  institution,
prosecution, dismissal, settlement, review or investigation of any legal action,
suit or proceeding, pending or threatened.

     (v) To issue, sell,  repurchase,  redeem,  cancel,  retire,  acquire, hold,
resell, reissue, dispose of and otherwise deal in Shares; to establish terms and
conditions regarding the issuance, sale, repurchase,  redemption,  cancellation,
retirement,  acquisition, holding, resale, reissuance, disposition of or dealing
in Shares;  and,  subject to Articles V and VI, to apply to any such repurchase,
redemption,  retirement,  cancellation  or  acquisition  of Shares  any funds or
property of the Trust or of the  particular  Series  with  respect to which such
Shares are issued.

     (w) To  invest  part or all of the  Trust  Property  (or part or all of the
assets of any  Series),  or to dispose of part or all of the Trust  Property (or
part or all of the  assets  of any  Series)  and  invest  the  proceeds  of such
disposition,  in  securities  issued by one or more other  investment  companies
registered  under  the 1940 Act all  without  any  requirement  of  approval  by
Shareholders. Any such other investment company may (but

                                      E-5


<PAGE>




need not) be a trust  (formed  under the laws of the State of New York or of any
other  state)  which is  classified  as a  partnership  for  federal  income tax
purposes.

     (x) To carry on any other business in connection  with or incidental to any
of the foregoing powers,  to do everything  necessary or desirable to accomplish
any purpose or to further any of the foregoing  powers,  and to take every other
action incidental to the foregoing business or purposes, objects or powers.

     (y) To sell or exchange  any or all of the assets of the Trust,  subject to
Article IX, Section 4.

     (z) To enter into joint ventures,  partnerships and other  combinations and
associations.

     (aa) To join with other  security  holders in acting  through a  committee,
depositary,  voting trustee or otherwise,  and in that connection to deposit any
security  with, or transfer any security to, any such  committee,  depositary or
trustee,  and to delegate to them such power and authority  with relation to any
security (whether or not so deposited or transferred) as the Trustees shall deem
proper,  and to agree to pay,  and to pay,  such  portion  of the  expenses  and
compensation of such Committee, depositary or trustee as the Trustees shall deem
proper;

     (bb) To purchase and pay for entirely out of Trust  Property such insurance
as the  Trustees  may deem  necessary  or  appropriate  for the  conduct  of the
business, including, without limitation,  insurance policies insuring the assets
of the  Trust  or  payment  of  distributions  and  principal  on its  portfolio
investments,  and,  subject to applicable law and any  restrictions set forth in
the By-laws, insurance policies insuring the Shareholders,  Trustees,  officers,
employees, agents, investment advisers,  Principal Underwriters,  or independent
contractors of the Trust,  individually,  against all claims and  liabilities of
every nature arising by reason of holding Shares,  holding, being or having held
any such  office or  position,  or by reason of any action  alleged to have been
taken or  omitted  by any such  Person as  Trustee,  officer,  employee,  agent,
investment adviser, Principal Underwriter, or independent contractor,  including
any action taken or omitted that may be  determined  to  constitute  negligence,
whether or not the Trust would have the power to indemnify  such Person  against
liability;

     (cc) To  adopt,  establish  and carry out  pension,  profit-sharing,  share
bonus,  share  purchase,  savings,  thrift and other  retirement,  incentive and
benefit plans and trusts, including the purchasing of life insurance and annuity
contracts as a means of providing such retirement and other benefits, for any or
all of the Trustees, officers, employees and agents of the Trust;

     (dd) To enter into contracts of any kind and description;

     (ee) To interpret the investment policies,  practices or limitations of any
Series or Class; and

     (ff) To guarantee indebtedness and contractual obligations of others.

                                      E-6


<PAGE>




     The  clauses  above  shall be  construed  as objects  and  powers,  and the
enumeration of specific  powers shall not limit in any way the general powers of
the  Trustees.  Any action by one or more of the  Trustees in their  capacity as
such  hereunder  shall  be  deemed  an  action  on  behalf  of the  Trust or the
applicable Series, and not an action in an individual  capacity.  No one dealing
with the Trustees shall be under any  obligation to make any inquiry  concerning
the authority of the Trustees, or to see to the application of any payments made
or property  transferred to the Trustees or upon their order. In construing this
Declaration,  the  presumption  shall  be in  favor  of a grant  of power to the
Trustees.

     Section 3. Certain  Transactions.  Except as prohibited by applicable  law,
the Trustees may, on behalf of the Trust,  buy any  securities  from or sell any
securities to, or lend any assets of the Trust to, any Trustee or officer of the
Trust or any firm of which any such  Trustee or  officer  is a member  acting as
principal, or have any such dealings with any investment adviser, administrator,
distributor  or transfer  agent for the Trust or with any  Interested  Person of
such person. The Trust may employ any such person or entity in which such person
is an  Interested  Person,  as  broker,  legal  counsel,  registrar,  investment
adviser, administrator,  distributor, transfer agent, dividend disbursing agent,
custodian or in any other capacity upon customary terms.

     Section 4. Initial Trustees;  Election and Number of Trustees.  The initial
Trustees shall be the persons initially signing this Declaration.  The number of
Trustees (other than the initial Trustees) shall be fixed from time to time by a
majority of the Trustees; provided, that there shall be at least one (1) Trustee
and no more  than  fifteen  (15)  Trustees.  The  Shareholders  shall  elect the
Trustees (other than the initial Trustees) on such dates as the Trustees may fix
from time to time.

     Section 5. Term of Office of Trustees.  Each Trustee  shall hold office for
life or until his successor is elected or the Trust terminates;  except that (a)
any  Trustee  may resign by  delivering  to the other  Trustees  or to any Trust
officer a written  resignation  effective  upon such  delivery  or a later  date
specified  therein;  (b) any Trustee may be removed with or without cause at any
time by a written instrument signed by at least a majority of the then Trustees,
specifying  the  effective  date of removal;  (c) any Trustee who requests to be
retired,  or who is  declared  bankrupt,  or has become  physically  or mentally
incapacitated,  or is  otherwise  unable to serve,  may be  retired by a written
instrument signed by a majority of the other Trustees,  specifying the effective
date of  retirement;  and (d) any  Trustee  may be removed at any meeting of the
Shareholders by a vote of at least two-thirds of the Outstanding Shares.

     Section 6.  Vacancies;  Appointment  of Trustees.  Whenever a vacancy shall
exist in the Board of Trustees,  regardless of the reason for such vacancy,  the
remaining  Trustees  shall  appoint any person as they  determine  in their sole
discretion to fill that vacancy,  consistent with the limitations under the 1940
Act. Such appointment shall be made by a written instrument signed by a majority
of the Trustees or by a resolution of the Trustees, duly adopted and recorded in
the records of the Trust, specifying the effective date of the appointment.  The
Trustees  may  appoint a new  Trustee as  provided  above in  anticipation  of a
vacancy expected to occur because of the retirement,

                                      E-7


<PAGE>




resignation  or removal  of a Trustee,  or an  increase  in number of  Trustees,
provided  that such  appointment  shall  become  effective  only at or after the
expected  vacancy  occurs.  As  soon  as  any  such  Trustee  has  accepted  his
appointment in writing, the trust estate shall vest in the new Trustee, together
with the  continuing  Trustees,  without any further act or  conveyance,  and he
shall be deemed a Trustee  hereunder.  The  Trustees'  power of  appointment  is
subject  to Section  16(a) of the 1940 Act.  Whenever a vacancy in the number of
Trustees  shall occur,  until such vacancy is filled as provided in this Article
II, the  Trustees  in office,  regardless  of their  number,  shall have all the
powers  granted to the Trustees and shall  discharge all the duties imposed upon
the Trustees by the Declaration.  The death, declination to serve,  resignation,
retirement, removal or incapacity of one or more Trustees, or all of them, shall
not operate to annul the Trust or to revoke any existing agency created pursuant
to the terms of this Declaration of Trust.

     Section 7. Temporary Vacancy or Absence. Whenever a vacancy in the Board of
Trustees  shall  occur,  until such  vacancy is filled,  or while any Trustee is
absent  from his  domicile  (unless  that  Trustee has made  arrangements  to be
informed  about,  and to  participate  in, the affairs of the Trust  during such
absence),  or is physically or mentally  incapacitated,  the remaining  Trustees
shall have all the powers  hereunder and their  certificate  as to such vacancy,
absence,  or  incapacity  shall be  conclusive.  Any  Trustee  may,  by power of
attorney,  delegate  his powers as Trustee  for a period not  exceeding  six (6)
months at any one time to any other Trustee or Trustees.

     Section 8.  Chairman.  The Trustees shall appoint one of their number to be
Chairman of the Board of Trustees. The Chairman shall preside at all meetings of
the Trustees,  shall be responsible for the execution of policies established by
the  Trustees  and  the  administration  of the  Trust,  and  may  be the  chief
executive, financial and/or accounting officer of the Trust.

     Section 9. Action by the Trustees.  The Trustees shall act by majority vote
at a meeting duly called at which a quorum is present,  including a meeting held
by  conference   telephone,   teleconference   or  other   electronic  media  or
communication  equipment  by means of which  all  persons  participating  in the
meeting can communicate  with each other; or by written consent of a majority of
Trustees (or such greater number as may be required by applicable law) without a
meeting.  A majority of the Trustees  shall  constitute a quorum at any meeting.
Meetings of the Trustees may be called orally or in writing by the Chairman, the
President or by any one of the Trustees.  Notice of the time,  date and place of
all  Trustees'  meetings  shall  be given to each  Trustee  as set  forth in the
By-laws;  provided,  however, that no notice is required if the Trustees provide
for  regular or stated  meetings.  Notice  need not be given to any  Trustee who
attends  the  meeting  without  objecting  to the lack of  notice or who signs a
waiver of notice  either  before or after the meeting.  The Trustees by majority
vote may delegate to any Trustee or Trustees or  committee  authority to approve
particular  matters  or take  particular  actions  on behalf of the  Trust.  Any
written  consent  or  waiver  may be  provided  and  delivered  to the  Trust by
facsimile or other similar electronic mechanism.

     Section 10.  Ownership of Trust  Property.  The Trust Property of the Trust
and of each  Series  shall be held  separate  and apart  from any  assets now or
hereafter held in any

                                      E-8


<PAGE>




capacity  other than as  Trustee  hereunder  by the  Trustees  or any  successor
Trustees.  Legal title in and  beneficial  ownership of all of the assets of the
Trust shall at all times be considered  as vested in the Trust,  except that the
Trustees may cause legal title in and beneficial ownership of any Trust Property
to be held by, or in the name of one or more of the  Trustees  acting for and on
behalf of the Trust,  or in the name of any person as nominee  acting for and on
behalf  of the  Trust.  No  Shareholder  shall  be  deemed  to have a  severable
ownership in any individual  asset of the Trust or of any Series or any right of
partition or possession thereof, but each Shareholder shall have, as provided in
Article V, a proportionate  undivided beneficial interest in the Trust or Series
or Class thereof  represented by Shares.  The Shares shall be personal  property
giving  only the rights  specifically  set forth in this Trust  Instrument.  The
Trust, at the determination of the Trustees,  one or more of the Trustees,  or a
nominee  acting  for and on behalf of the  Trust,  shall be deemed to hold legal
title and  beneficial  ownership of any income earned on securities of the Trust
issued by any business entities formed, organized, or existing under the laws of
any  jurisdiction,   including  the  laws  of  any  foreign  country.  Upon  the
resignation or removal of a Trustee,  or his otherwise  ceasing to be a Trustee,
he shall  execute and deliver such  documents as the  remaining  Trustees  shall
require for the purpose of conveying to the Trust or the remaining  Trustees any
Trust  Property held in the name of the resigning or removed  Trustee.  Upon the
incapacity or death of any Trustee,  his legal  representative shall execute and
deliver on his behalf such documents as the remaining  Trustees shall require as
provided in the preceding sentence.

     Section  11.  Effect of  Trustees  Not  Serving.  The  death,  resignation,
retirement, removal, incapacity,  inability or refusal to serve of the Trustees,
or any one of them,  shall not  operate  to annul  the  Trust or to  revoke  any
existing agency created pursuant to the terms of this Declaration.

     Section 12. Trustees, etc. as Shareholders.  Subject to any restrictions in
the By-laws, any Trustee,  officer, agent or independent contractor of the Trust
may  acquire,  own and  dispose  of  Shares  to the  same  extent  as any  other
Shareholder;  the  Trustees may issue and sell Shares to and buy Shares from any
such person or any firm or company in which such person is  interested,  subject
only to any general limitations herein.

     Section 13. Series Trustees. In connection with the establishment of one or
more  Series or  Classes,  the  Trustees  establishing  such Series or Class may
appoint,  to the extent  permitted by the Delaware Act,  separate  Trustees with
respect to such Series or Classes (the "Series Trustees").  Series Trustees may,
but are not  required  to, serve as Trustees of the Trust or any other Series or
Class of the Trust.  The  Trustees  shall have,  to the  exclusion  of any other
Trustee of the Trust, all the powers and authorities of Trustees  hereunder with
respect  to such  Series or Class,  but shall  have no power or  authority  with
respect to any other Series or Class. Any provision of this Declaration relating
to election of Trustees by Shareholders only shall entitle the Shareholders of a
Series or Class for  which  Series  Trustees  have been  appointed  to vote with
respect to the  election of such Series  Trustees  and the  Shareholders  of any
other Series or Class shall not be entitled to  participate in such vote. In the
event that Series Trustees are appointed, the Trustees initially appointing such
Series Trustees shall, without the approval of any

                                      E-9


<PAGE>




Outstanding  Shares,  amend either the Declaration or the By-laws to provide for
the  respective  responsibilities  of the  Trustees  and the Series  Trustees in
circumstances  where an action of the  Trustees or Series  Trustees  affects all
Series of the Trust or two or more Series represented by different Trustees.

                                 ARTICLE III

                       CONTRACTS WITH SERVICE PROVIDERS

     Section 1. Underwriting Contract. The Trustees may in their discretion from
time to time enter into an exclusive or non-exclusive  distribution  contract or
contracts  providing for the sale of the Shares  whereby the Trustees may either
agree to sell the Shares to the other  party to the  contract  or  appoint  such
other  party as their  sales  agent for the  Shares,  and in either case on such
terms and  conditions,  if any, as may be  prescribed  in the By-laws,  and such
further terms and conditions as the Trustees may in their  discretion  determine
not inconsistent with the provisions of this Article III or of the By-laws;  and
such  contract may also provide for the  repurchase  of the Shares by such other
party as agent of the Trustees.

     Section 2.  Advisory or  Management  Contract.  The  Trustees  may in their
discretion  from time to time  enter  into one or more  investment  advisory  or
management  contracts or, if the Trustees  establish  multiple Series,  separate
investment  advisory or management  contracts with respect to one or more Series
whereby  the other party or parties to any such  contracts  shall  undertake  to
furnish   the   Trust   or  such   Series   management,   investment   advisory,
administration,  accounting,  legal,  statistical  and research  facilities  and
services,  promotional or marketing  activities,  and such other  facilities and
services, if any, as the Trustees shall from time to time consider desirable and
all upon such  terms and  conditions  as the  Trustees  may in their  discretion
determine.  Notwithstanding any provisions of the Declaration,  the Trustees may
authorize  the  Investment  Advisers or persons to whom the  Investment  Adviser
delegates  certain  or all of  their  duties,  or any of  them,  under  any such
contracts (subject to such general or specific  instructions as the Trustees may
from time to time  adopt) to effect  purchases,  sales,  loans or  exchanges  of
portfolio  securities  and  other  investments  of the  Trust on  behalf  of the
Trustees  or may  authorize  any  officer,  employee  or Trustee to effect  such
purchases,  sales,  loans  or  exchanges  pursuant  to  recommendations  of such
Investment  Advisers,  or any of them  (and all  without  further  action by the
Trustees).  Any such  purchases,  sales,  loans and exchanges shall be deemed to
have been authorized by all of the Trustees.

     Section 3. Administration  Agreement.  The Trustees may in their discretion
from time to time enter into an  administration  agreement  or, if the  Trustees
establish multiple Series or Classes,  separate  administration  agreements with
respect to each Series or Class, whereby the other party to such agreement shall
undertake  to manage the  business  affairs of the Trust or of a Series or Class
thereof of the Trust and furnish the Trust or a Series or a Class  thereof  with
office  facilities,   and  shall  be  responsible  for  the  ordinary  clerical,
bookkeeping and recordkeeping services at such office facilities, and

                                     E-10


<PAGE>




other facilities and services, if any, and all upon such terms and conditions as
the Trustees may in their discretion determine.

     Section 4. Service  Agreement.  The Trustees may in their  discretion  from
time to time enter into service agreements with respect to one or more Series or
Classes of Shares  whereby the other  parties to such  Service  Agreements  will
provide  administration and/or support services pursuant to administration plans
and service  plans,  and all upon such terms and  conditions  as the Trustees in
their discretion may determine.

     Section 5. Transfer Agent.  The Trustees may in their  discretion from time
to time enter into a transfer agency and shareholder  service  contract  whereby
the other party to such contract shall undertake to furnish  transfer agency and
shareholder  services  to the  Trust.  The  contract  shall  have such terms and
conditions as the Trustees may in their  discretion  determine not  inconsistent
with the Declaration. Such services may be provided by one or more Persons.

     Section 6. Custodian.  The Trustees may appoint or otherwise  engage one or
more banks or trust  companies,  each having an aggregate  capital,  surplus and
undivided  profits  (as  shown in its last  published  report)  of at least  two
million dollars ($2,000,000), or any other entity satisfying the requirements of
the 1940 Act, to serve as Custodian with authority as its agent,  but subject to
such  restrictions,  limitations  and  other  requirements,  if  any,  as may be
contained  in the By-laws of the Trust.  The  Trustees  may also  authorize  the
Custodian to employ one or more sub-custodians, including such foreign banks and
securities depositories as meet the requirements of applicable provisions of the
1940 Act, and upon such terms and  conditions  as may be agreed upon between the
Custodian and such  sub-custodian,  to hold  securities  and other assets of the
Trust  and to  perform  the acts  and  services  of the  Custodian,  subject  to
applicable provisions of law and resolutions adopted by the Trustees.

     Section 7.  Affiliations of Trustees or Officers, Etc.  The fact that:

          (i) any of the Shareholders,  Trustees or officers of the Trust or any
     Series  thereof is a  shareholder,  director,  officer,  partner,  trustee,
     employee,  manager,  adviser  or  distributor  of or for  any  partnership,
     corporation,  trust,  association  or other  organization  or of or for any
     parent or  affiliate  of any  organization,  with which a  contract  of the
     character  described  in this  Article III or for  services  as  Custodian,
     Transfer Agent or disbursing agent or for related services may have been or
     may  hereafter  be made,  or that any such  organization,  or any parent or
     affiliate thereof,  is a Shareholder of or has an interest in the Trust, or
     that

          (ii)  any  partnership,   corporation,  trust,  association  or  other
     organization  with which a contract of the character  described in Sections
     1, 2, 3 or 4 of this  Article III or for  services as  Custodian,  Transfer
     Agent or  disbursing  agent or for  related  services  may have been or may
     hereafter  be made also has any one or more of such  contracts  with one or
     more  other  partnerships,  corporations,  trusts,  associations  or  other
     organizations,  or has other  business or  interests,  shall not affect the
     validity of any such contract or  disqualify  any  Shareholder,  Trustee or
     officer of the

                                     E-11


<PAGE>




Trust from voting upon or  executing  the same or create any  liability  or
accountability to the Trust or its Shareholders.

                                  ARTICLE IV

          COMPENSATION, LIMITATION OF LIABILITY AND INDEMNIFICATION

     Section  1.  Compensation.  The  Trustees  as such  shall  be  entitled  to
reasonable  compensation  from the  Trust,  and they may fix the  amount of such
compensation.  Nothing  herein  shall in any way prevent the  employment  of any
Trustee for advisory, management, legal, accounting, investment banking or other
services and payment for the same by the Trust.

     Section 2. Limitation of Liability.  All persons contracting with or having
any claim against the Trust or a particular Series shall look only to the assets
of all Series or such  particular  Series for  payment  under such  contract  or
claim;  and neither the Trustees nor, when acting in such  capacity,  any of the
Trust's officers, employees or agents, whether past, present or future, shall be
personally liable therefor.  Every written instrument or obligation on behalf of
the Trust or any Series shall contain a statement to the foregoing  effect,  but
the absence of such  statement  shall not operate to make any Trustee or officer
of the Trust liable thereunder. Provided they have exercised reasonable care and
have  acted  under the  reasonable  belief  that their  actions  are in the best
interest  of the Trust,  the  Trustees  and  officers  of the Trust shall not be
responsible  or liable for any act or omission or for neglect or  wrongdoing  of
them  or  any  officer,  agent,  employee,  investment  adviser  or  independent
contractor of the Trust,  but nothing  contained in this  Declaration  or in the
Delaware Act shall protect any Trustee or officer of the Trust against liability
to the Trust or to Shareholders to which he would otherwise be subject by reason
of willful misfeasance, bad faith, gross negligence or reckless disregard of the
duties involved in the conduct of his office.

     Section 3.  Indemnification.  (a) Subject to the exceptions and limitations
contained in subsection (b) below:

          (i)  every  person  who is,  or has been,  a  Trustee  or an  officer,
     employee or agent of the Trust  (including any individual who serves at its
     request  as  director,  officer,  partner,  trustee  or the like of another
     organization  in which it has any  interest as a  shareholder,  creditor or
     otherwise)  ("Covered  Person")  shall be  indemnified  by the Trust or the
     appropriate Series to the fullest extent permitted by law against liability
     and against all expenses  reasonably  incurred or paid by him in connection
     with any claim,  action, suit or proceeding in which he becomes involved as
     a party or otherwise by virtue of his being or having been a Covered Person
     and against amounts paid or incurred by him in the settlement thereof; and

          (ii)  as  used  herein,   the  words  "claim,"  "action,"  "suit,"  or
     "proceeding"  shall  apply to all  claims,  actions,  suits or  proceedings
     (civil,  criminal or other, including appeals),  actual or threatened,  and
     the words "liability" and "expenses"

                                     E-12


<PAGE>




     shall include,  without  limitation,  attorneys'  fees,  costs,  judgments,
     amounts paid in settlement, fines, penalties and other liabilities.

     (b) No indemnification shall be provided hereunder to a Covered Person:

          (i) who shall have been  adjudicated  by a court or body before  which
     the  proceeding  was  brought  (A)  to  be  liable  to  the  Trust  or  its
     Shareholders by reason of willful misfeasance,  bad faith, gross negligence
     or reckless  disregard of the duties involved in the conduct of his office,
     or (B) not to have acted in good faith in the  reasonable  belief  that his
     action was in the best interest of the Trust; or

          (ii)  in  the  event  of  a  settlement,   unless  there  has  been  a
     determination   that  such  Covered   Person  did  not  engage  in  willful
     misfeasance,  bad faith,  gross  negligence  or reckless  disregard  of the
     duties  involved in the  conduct of his  office;  (A) by the court or other
     body approving the settlement; (B) by at least a majority of those Trustees
     who are  neither  Interested  Persons  of the Trust nor are  parties to the
     matter based upon a review of readily available facts (as opposed to a full
     trial-type  inquiry);  (C) by written opinion of independent  legal counsel
     based  upon a review  of  readily  available  facts (as  opposed  to a full
     trial-type  inquiry)  or (D) by a vote  of a  majority  of the  Outstanding
     Shares entitled to vote  (excluding any Outstanding  Shares owned of record
     or beneficially by such individual).

     (c) The rights of indemnification herein provided may be insured against by
policies maintained by the Trust, shall be severable,  shall not be exclusive of
or affect any other  rights to which any Covered  Person may now or hereafter be
entitled,   and  shall  inure  to  the  benefit  of  the  heirs,  executors  and
administrators of a Covered Person.

     (d)  To the  maximum  extent  permitted  by  applicable  law,  expenses  in
connection  with the  preparation  and  presentation  of a defense to any claim,
action,  suit or proceeding of the character described in subsection (a) of this
Section may be paid by the Trust or applicable Series from time to time prior to
final disposition thereof upon receipt of an undertaking by or on behalf of such
Covered  Person  that  such  amount  will be paid  over by him to the  Trust  or
applicable  Series if it is  ultimately  determined  that he is not  entitled to
indemnification  under this  Section;  provided,  however,  that either (i) such
Covered Person shall have provided  appropriate  security for such  undertaking,
(ii)  the  Trust is  insured  against  losses  arising  out of any such  advance
payments or (iii) either a majority of the  Trustees who are neither  Interested
Persons of the Trust nor parties to the matter,  or independent legal counsel in
a written  opinion,  shall  have  determined,  based  upon a review  of  readily
available facts (as opposed to a full  trial-type  inquiry) that there is reason
to  believe   that  such   Covered   Person  will  not  be   disqualified   from
indemnification under this Section.

     (e) Any repeal or modification of this Article IV by the  Shareholders,  or
adoption or  modification  of any other  provision of the Declaration or By-laws
inconsistent  with this Article,  shall be prospective  only, to the extent that
such repeal, or modification would, if applied retrospectively, adversely affect
any  limitation  on the  liability  of any  Covered  Person  or  indemnification
available  to any  Covered  Person  with  respect to any act or  omission  which
occurred prior to such repeal, modification or adoption.

                                     E-13


<PAGE>




     Section 3.  Indemnification  of Shareholders.  If any Shareholder or former
Shareholder  of any Series shall be held  personally  liable solely by reason of
his being or having been a Shareholder  and not because of his acts or omissions
or for some other reason,  the Shareholder or former  Shareholder (or his heirs,
executors,  administrators or other legal  representatives or in the case of any
entity,  its general successor) shall be entitled out of the assets belonging to
the applicable Series to be held harmless from and indemnified  against all loss
and expense  arising from such  liability.  The Trust, on behalf of the affected
Series, shall, upon request by such Shareholder, assume the defense of any claim
made  against  such  Shareholder  for any act or  obligation  of the  Series and
satisfy any judgment thereon from the assets of the Series.

     Section 4. No Bond  Required of Trustees.  No Trustee shall be obligated to
give  any  bond or  other  security  for the  performance  of any of his  duties
hereunder.

     Section 5. No Duty of Investigation;  Notice in Trust Instruments,  Etc. No
purchaser,  lender,  transfer agent or other Person dealing with the Trustees or
any officer,  employee or agent of the Trust or a Series  thereof shall be bound
to make any inquiry concerning the validity of any transaction  purporting to be
made by the Trustees or by said officer,  employee or agent or be liable for the
application of money or property paid,  loaned,  or delivered to or on the order
of the  Trustees  or of said  officer,  employee  or  agent.  Every  obligation,
contract,  instrument,  certificate,  Share,  other  security  of the Trust or a
Series thereof or undertaking,  and every other act or thing whatsoever executed
in  connection  with the  Trust  shall be  conclusively  presumed  to have  been
executed or done by the  executors  thereof  only in their  capacity as Trustees
under this Declaration or in their capacity as officers,  employees or agents of
the Trust or a Series thereof. Every written obligation,  contract,  instrument,
certificate,  Share,  other  security  of  the  Trust  or a  Series  thereof  or
undertaking  made or issued by the Trustees may recite that the same is executed
or made by them not  individually,  but as Trustees under the  Declaration,  and
that the  obligations of the Trust or a Series thereof under any such instrument
are not binding upon any of the Trustees or Shareholders individually,  but bind
only the Trust Property or the Trust Property of the applicable  Series, and may
contain any further recital which they may deem appropriate, but the omission of
such recital shall not operate to bind the Trustees  individually.  The Trustees
shall at all times  maintain  insurance for the protection of the Trust Property
or the Trust  Property of the applicable  Series,  its  Shareholders,  Trustees,
officers,  employees  and  agents in such  amount  as the  Trustees  shall  deem
adequate to cover  possible  tort  liability,  and such other  insurance  as the
Trustees in their sole judgment shall deem advisable.

     Section 6. Reliance on Experts,  Etc. Each Trustee,  officer or employee of
the Trust or a Series thereof shall,  in the  performance of his duties,  powers
and discretions  hereunder be fully and completely  justified and protected with
regard to any act or any failure to act  resulting  from  reliance in good faith
upon the books of  account or other  records  of the Trust or a Series  thereof,
upon an  opinion  of  counsel,  or upon  reports  made to the  Trust or a Series
thereof by any of its officers or employees or by the  Investment  Adviser,  the
Administrator,  the Distributor,  Transfer Agent, selected dealers, accountants,
appraisers or other experts or consultants selected with reasonable care by

                                     E-14


<PAGE>




the  Trustees,  officers or employees of the Trust,  regardless  of whether such
counsel or expert may also be a Trustee.

                                  ARTICLE V

                           SERIES; CLASSES; SHARES

     Section 1. Establishment of Series or Class. The Trust shall consist of one
or more Series.  Without limiting the authority of the Trustees to establish and
designate any further Series, the Trustees hereby affirm that the Trust consists
of the following existing three Series: Pioneer Cash Reserves Fund, Pioneer U.S.
Government  Money Fund and Pioneer  Tax-Free Money Fund. Each additional  Series
shall be  established  and is effective  upon the adoption of a resolution  of a
majority of the Trustees or any alternative  date specified in such  resolution.
The Trustees may designate the relative  rights and preferences of the Shares of
each Series. The Trustees may divide the Shares of any Series into Classes.  The
Shares of the existing  Series and any Shares of any further  Series and Classes
that may from time to time be  established  and designated by the Trustees shall
be established  and  designated,  and the variations in the relative  rights and
preferences as between the different  Series shall be fixed and  determined,  by
the  Trustees;  provided,  that all Shares  shall be  identical  except for such
variations as shall be fixed and determined  between different Series or Classes
by the  Trustees  in  establishing  and  designating  such Class or Series.  All
references to Shares in this Declaration  shall be deemed to be Shares of any or
all Series or Classes as the  context  may  require.  The Trust  shall  maintain
separate  and  distinct  records  for each  Series and hold and  account for the
assets  thereof  separately  from the other  assets of the Trust or of any other
Series.  A Series may issue any number of Shares or any Class  thereof  and need
not issue  Shares.  Each Share of a Series shall  represent an equal  beneficial
interest in the net assets of such Series.  Each holder of Shares of a Series or
a Class  thereof  shall  be  entitled  to  receive  his pro  rata  share  of all
distributions  made with respect to such Series or Class. Upon redemption of his
Shares,  such Shareholder  shall be paid solely out of the funds and property of
such Series. The Trustees may adopt and change the name of any Series or Class.

     Section 2. Shares.  The  beneficial  interest in the Trust shall be divided
into transferable  Shares of one or more separate and distinct Series or Classes
established  by the  Trustees.  The number of Shares of each Series and Class is
unlimited  and each Share shall have no par value per Share or such other amount
as the Trustees may establish.  All Shares issued  hereunder shall be fully paid
and  nonassessable.  Shareholders  shall have no  preemptive  or other  right to
subscribe to any additional  Shares or other securities issued by the Trust. The
Trustees  shall have full power and  authority,  in their  sole  discretion  and
without obtaining  Shareholder  approval, to issue original or additional Shares
at such  times and on such terms and  conditions  as they deem  appropriate;  to
issue  fractional  Shares and Shares held in the  treasury;  to establish and to
change in any  manner  Shares of any Series or  Classes  with such  preferences,
terms of conversion,  voting  powers,  rights and privileges as the Trustees may
determine  (but the  Trustees  may not  change  Outstanding  Shares  in a manner
materially adverse to the Shareholders

                                     E-15


<PAGE>




of such Shares); to divide or combine the Shares of any Series or Classes into a
greater or lesser number;  to classify or reclassify any unissued  Shares of any
Series or Classes  into one or more Series or Classes of Shares;  to abolish any
one or more Series or Classes of Shares; to issue Shares to acquire other assets
(including  assets  subject  to,  and in  connection  with,  the  assumption  of
liabilities)  and businesses;  and to take such other action with respect to the
Shares as the Trustees may deem desirable. Shares held in the treasury shall not
confer  any  voting  rights on the  Trustees  and shall not be  entitled  to any
dividends or other distributions declared with respect to the Shares.

     Section 3. Investment in the Trust.  The Trustees shall accept  investments
in any Series or Class from such persons and on such terms as they may from time
to time authorize.  At the Trustees'  discretion,  such investments,  subject to
applicable law, may be in the form of cash or securities in which that Series is
authorized to invest,  valued as provided in Article VI, Section 3.  Investments
in a Series shall be credited to each Shareholder's  account in the form of full
Shares at the Net Asset Value per Share next determined  after the investment is
received or accepted as may be determined by the  Trustees;  provided,  however,
that the Trustees may, in their sole discretion,  (a) impose a sales charge upon
investments in any Series or Class, (b) issue fractional  Shares,  (c) determine
the Net  Asset  Value  per  Share of the  initial  capital  contribution  or (d)
authorize  the  issuance  of Shares at a price other than Net Asset Value to the
extent  permitted by the 1940 Act or any rule,  order or  interpretation  of the
Commission  thereunder.  The  Trustees  shall have the right to refuse to accept
investments  in any  Series at any time  without  any  cause or reason  therefor
whatsoever.

     Section 4. Assets and Liabilities of Series. All consideration  received by
the Trust for the issue or sale of Shares of a particular Series,  together with
all assets in which such  consideration  is invested or reinvested,  all income,
earnings, profits, and proceeds thereof (including any proceeds derived from the
sale,  exchange or liquidation of such assets, and any funds or payments derived
from any  reinvestment of such proceeds in whatever form the same may be), shall
be held and accounted for  separately  from the assets of every other Series and
are referred to as "assets belonging to" that Series.  The assets belonging to a
Series  shall  belong  only to that  Series  for all  purposes,  and to no other
Series,  subject only to the rights of  creditors  of that  Series.  Any assets,
income,  earnings,  profits, and proceeds thereof,  funds, or payments which are
not  readily  identifiable  as  belonging  to any  particular  Series  shall  be
allocated by the  Trustees  between and among one or more Series as the Trustees
deem fair and equitable.  Each such  allocation  shall be conclusive and binding
upon the Shareholders of all Series for all purposes, and such assets, earnings,
income,  profits or funds, or payments and proceeds thereof shall be referred to
as assets belonging to that Series. The assets belonging to a Series shall be so
recorded upon the books of the Trust, and shall be held by the Trustees in trust
for the benefit of the  Shareholders of that Series.  The assets  belonging to a
Series shall be charged with the  liabilities  of that Series and all  expenses,
costs, charges and reserves attributable to that Series, except that liabilities
and  expenses  allocated  solely to a  particular  Class  shall be borne by that
Class.  Any general  liabilities,  expenses,  costs,  charges or reserves of the
Trust which are not readily  identifiable as belonging to any particular  Series
or Class shall be allocated and charged

                                     E-16


<PAGE>




by the  Trustees  between  or among any one or more of the  Series or Classes in
such manner as the Trustees deem fair and equitable.  Each such allocation shall
be conclusive and binding upon the Shareholders of all Series or Classes for all
purposes.

     Without limiting the foregoing, but subject to the right of the Trustees to
allocate general  liabilities,  expenses,  costs,  charges or reserves as herein
provided, the debts, liabilities,  obligations and expenses incurred, contracted
for  or  otherwise  existing  with  respect  to a  particular  Series  shall  be
enforceable  against the assets of such Series only,  and not against the assets
of any other Series. Notice of this contractual  limitation on liabilities among
Series may, in the  Trustees'  discretion,  be set forth in the  certificate  of
trust of the Trust (whether  originally or by amendment) as filed or to be filed
in the Office of the Secretary of State of the State of Delaware pursuant to the
Delaware  Act, and upon the giving of such notice in the  certificate  of trust,
the  statutory  provisions  of Section  3804 of the  Delaware  Act  relating  to
limitations on liabilities  among Series (and the statutory effect under Section
3804 of setting  forth such notice in the  certificate  of trust)  shall  become
applicable  to the  Trust and each  Series.  Any  person  extending  credit  to,
contracting  with or having  any claim  against  any Series may look only to the
assets of that  Series to  satisfy  or enforce  any debt,  with  respect to that
Series. No Shareholder or former Shareholder of any Series shall have a claim on
or any right to any assets allocated or belonging to any other Series.

     Section 5.  Ownership  and  Transfer of Shares.  The Trust or a transfer or
similar agent for the Trust shall  maintain a register  containing the names and
addresses of the  Shareholders  of each Series and Class thereof,  the number of
Shares of each Series and Class held by such  Shareholders,  and a record of all
Share  transfers.  The  register  shall  be  conclusive  as to the  identity  of
Shareholders  of record and the number of Shares held by them from time to time.
The Trustees may authorize the issuance of certificates  representing Shares and
adopt rules  governing  their use.  The Trustees  may make rules  governing  the
transfer  of  Shares,  whether or not  represented  by  certificates.  Except as
otherwise provided by the Trustees, Shares shall be transferable on the books of
the Trust only by the record holder thereof or by his duly authorized agent upon
delivery  to the  Trustees  or the  Trust's  transfer  agent of a duly  executed
instrument of transfer, together with a Share certificate if one is outstanding,
and such evidence of the  genuineness of each such  execution and  authorization
and of  such  other  matters  as may be  required  by the  Trustees.  Upon  such
delivery,  and subject to any further requirements  specified by the Trustees or
contained  in the By-laws,  the  transfer  shall be recorded on the books of the
Trust.  Until a transfer is so  recorded,  the  Shareholder  of record of Shares
shall be deemed to be the holder of such Shares for all purposes  hereunder  and
neither the Trustees nor the Trust,  nor any transfer  agent or registrar or any
officer,  employee  or agent of the Trust,  shall be affected by any notice of a
proposed transfer.

     Section 6. Status of Shares;  Limitation of Shareholder  Liability.  Shares
shall be deemed to be  personal  property  giving  Shareholders  only the rights
provided in this Declaration.  Every Shareholder, by virtue of having acquired a
Share, shall be held expressly to have assented to and agreed to be bound by the
terms of this  Declaration  and to have become a party  hereto.  No  Shareholder
shall be personally liable for the

                                     E-17


<PAGE>




debts,  liabilities,  obligations and expenses  incurred by,  contracted for, or
otherwise  existing  with  respect  to,  the  Trust or any  Series.  The  death,
incapacity,  dissolution,  termination or bankruptcy of a Shareholder during the
existence of the Trust shall not operate to terminate the Trust, nor entitle the
representative of any such Shareholder to an accounting or to take any action in
court  or  elsewhere  against  the  Trust or the  Trustees,  but  entitles  such
representative  only  to the  rights  of  such  Shareholder  under  this  Trust.
Ownership of Shares shall not entitle the  Shareholder to any title in or to the
whole or any part of the  Trust  Property  or right to call for a  partition  or
division of the same or for an  accounting,  nor shall the  ownership  of Shares
constitute  the  Shareholders  as  partners.  Neither the Trust nor the Trustees
shall have any power to bind any  Shareholder  personally  or to demand  payment
from any  Shareholder  for  anything,  other than as agreed by the  Shareholder.
Shareholders shall have the same limitation of personal liability as is extended
to shareholders of a private corporation for profit incorporated in the State of
Delaware.  Every  written  obligation of the Trust or any Series shall contain a
statement to the effect that such  obligation  may only be enforced  against the
assets of the appropriate  Series or all Series;  however,  the omission of such
statement  shall  not  operate  to bind or  create  personal  liability  for any
Shareholder or Trustee.

                                  ARTICLE VI

                        DISTRIBUTIONS AND REDEMPTIONS

     Section  1.  Distributions.  The  Trustees  or a  committee  of one or more
Trustees  and one or more  officers  may  declare  and pay  dividends  and other
distributions,  including  dividends on Shares of a particular  Series and other
distributions  from  the  assets  belonging  to  that  Series.  No  dividend  or
distribution,   including,   without  limitation,  any  distribution  paid  upon
termination  of the Trust or of any  Series or Class  with  respect  to, nor any
redemption or repurchase of, the Shares of any Series or Class shall be effected
by the Trust other than from the assets held with  respect to such  Series,  nor
shall any Shareholder of any particular Series otherwise have any right or claim
against the assets held with  respect to any other  Series  except to the extent
that such  Shareholder  has such a right or claim  hereunder as a Shareholder of
such other Series.  The Trustees shall have full  discretion to determine  which
items  shall be  treated  as income and which  items as  capital;  and each such
determination   and  allocation   shall  be  conclusive  and  binding  upon  the
Shareholders.  The amount and payment of  dividends or  distributions  and their
form,  whether  they  are in cash,  Shares  or other  Trust  Property,  shall be
determined  by the  Trustees.  Dividends  and  other  distributions  may be paid
pursuant to a standing  resolution  adopted  once or more often as the  Trustees
determine.  All  dividends  and other  distributions  on Shares of a  particular
Series  shall be  distributed  pro rata to the  Shareholders  of that  Series in
proportion  to the number of Shares of that  Series they held on the record date
established for such payment, except that such dividends and distributions shall
appropriately  reflect expenses  allocated to a particular Class of such Series.
The  Trustees may adopt and offer to  Shareholders  such  dividend  reinvestment
plans,  cash  dividend  payout  plans  or  similar  plans as the  Trustees  deem
appropriate.

                                     E-18


<PAGE>




     Section 2.  Redemptions.  Each Shareholder of a Series shall have the right
at such times as may be  permitted  by the  Trustees  to  require  the Series to
redeem all or any part of his Shares at a  redemption  price per Share  equal to
the Net Asset Value per Share at such time as the Trustees shall have prescribed
by  resolution,  or, to the  extent  permitted  by the 1940 Act,  at such  other
redemption  price  and  at  such  times  as  the  Trustees  shall  prescribe  by
resolution.  In the absence of such  resolution,  the redemption price per Share
shall be the Net Asset Value next  determined  after  receipt by the Series of a
request for redemption in proper form less such charges as are determined by the
Trustees and  described in the Trust's  Registration  Statement  for that Series
under the Securities Act of 1933. The Trustees may specify  conditions,  prices,
and places of redemption,  may specify binding  requirements for the proper form
or forms of requests for  redemption  and may specify the amount of any deferred
sales charge to be withheld from redemption proceeds.  Payment of the redemption
price may be wholly or partly in securities or other assets at the value of such
securities or assets used in such determination of Net Asset Value, or may be in
cash.  Upon  redemption,  Shares may be reissued from time to time. The Trustees
may require  Shareholders to redeem Shares for any reason under terms set by the
Trustees,  including, but not limited to, the failure of a Shareholder to supply
a taxpayer  identification  number if  required to do so, or to have the minimum
investment  required,  or to pay when due for the  purchase of Shares  issued to
him. To the extent permitted by law, the Trustees may retain the proceeds of any
redemption of Shares  required by them for payment of amounts due and owing by a
Shareholder to the Trust or any Series or Class or any  governmental  authority.
Notwithstanding  the  foregoing,  the  Trustees  may  postpone  payment  of  the
redemption  price and may suspend the right of the  Shareholders  to require any
Series  or Class to  redeem  Shares  during  any  period of time when and to the
extent permissible under the 1940 Act.

     Section 3.  Determination  of Net Asset Value. The Trustees shall cause the
Net Asset Value of Shares of each Series or Class to be determined  from time to
time in a manner  consistent with applicable laws and regulations.  The Trustees
may delegate the power and duty to determine Net Asset Value per Share to one or
more  Trustees or officers of the Trust or to a custodian,  depository  or other
agent  appointed  for such  purpose.  The Net  Asset  Value of  Shares  shall be
determined  separately  for  each  Series  or  Class  at  such  times  as may be
prescribed by the Trustees or, in the absence of action by the  Trustees,  as of
the close of regular  trading on the New York Stock Exchange on each day for all
or part of which such Exchange is open for unrestricted trading.

     Section 4. Suspension of Right of Redemption. If, as referred to in Section
2 of this Article,  the Trustees  postpone  payment of the redemption  price and
suspend the right of Shareholders to redeem their Shares,  such suspension shall
take effect at the time the Trustees shall specify, but not later than the close
of business on the business day next  following the  declaration  of suspension.
Thereafter  Shareholders  shall have no right of redemption or payment until the
Trustees  declare  the end of the  suspension.  If the  right of  redemption  is
suspended,  a  Shareholder  may either  withdraw his request for  redemption  or
receive payment based on the Net Asset Value per Share next determined after the
suspension terminates.

                                     E-19


<PAGE>




     Section  5.  Repurchase  by  Agreement.  The  Trust may  repurchase  Shares
directly,  or through  the  Distributor  or  another  agent  designated  for the
purpose,  by agreement  with the owner  thereof at a price not exceeding the Net
Asset Value per Share determined as of the time when the purchase or contract of
purchase  is made or the Net  Asset  Value  as of any  time  which  may be later
determined,  provided payment is not made for the Shares prior to the time as of
which such Net Asset Value is determined.

                                 ARTICLE VII

                   SHAREHOLDERS' VOTING POWERS AND MEETINGS

     Section 1. Voting Powers.  The  Shareholders  shall have power to vote only
with  respect to (a) the  election  of Trustees as provided in Section 2 of this
Article;  (b) the removal of Trustees as provided in Article II,  Section  5(d);
(c) any investment  advisory or management contract as provided in Article VIII,
Section 1; (d) any  termination  of the Trust as provided in Article IX, Section
4; (e) the  amendment  of this  Declaration  to the  extent and as  provided  in
Article IX, Section 8; and (f) such additional  matters relating to the Trust as
may be required or authorized by law,  this  Declaration,  or the By-laws or any
registration  of the Trust with the Commission or any State,  or as the Trustees
may consider desirable.

     On any matter submitted to a vote of the Shareholders,  all Shares shall be
voted by individual  Series or Class,  except (a) when required by the 1940 Act,
Shares shall be voted in the aggregate  and not by  individual  Series or Class,
and (b) when the Trustees have  determined that the matter affects the interests
of more than one Series or Class,  then the  Shareholders  of all such Series or
Classes shall be entitled to vote thereon. Each whole Share shall be entitled to
one vote as to any matter on which it is entitled to vote,  and each  fractional
share shall be entitled to a proportionate  fractional  vote.  There shall be no
cumulative voting in the election of Trustees.  Shares may be voted in person or
by proxy or in any manner  provided for in the By-laws.  The By-laws may provide
that proxies may be given by any electronic or  telecommunications  device or in
any other  manner,  but if a  proposal  by anyone  other  than the  officers  or
Trustees is submitted to a vote of the  Shareholders  of any Series or Class, or
if there is a proxy contest or proxy  solicitation  or proposal in opposition to
any proposal by the officers or Trustees,  Shares may be voted only in person or
by written  proxy.  Until  Shares of a Series are issued,  as to that Series the
Trustees  may  exercise  all  rights  of  Shareholders  and may take any  action
required or permitted to be taken by  Shareholders  by law, this  Declaration or
the By-laws.  Meetings of  Shareholders  shall be called and notice  thereof and
record dates therefor shall be given and set as provided in the By-laws.

     Section 2. Quorum;  Required Vote.  One-third of the Outstanding  Shares of
each  Series or Class,  or  one-third  of the  Outstanding  Shares of the Trust,
entitled to vote in person or by proxy shall be a quorum for the  transaction of
business at a  Shareholders'  meeting with  respect to such Series or Class,  or
with  respect to the entire  Trust,  respectively.  Any lesser  number  shall be
sufficient for adjournments.  Any adjourned  session of a Shareholders'  meeting
may be held within a reasonable time without further

                                     E-20


<PAGE>




notice.  Except when a larger vote is required by law, this  Declaration  or the
By-laws, a majority of the Shares voting at a Shareholders' meeting in person or
by proxy shall  decide any  matters to be voted upon with  respect to the entire
Trust and a plurality  of such Shares shall elect a Trustee;  provided,  that if
this  Declaration  or applicable law permits or requires that Shares be voted on
any matter by  individual  Series or  Classes,  then a majority of the Shares of
that  Series  or Class  (or,  if  required  by law,  a  majority  of the  Shares
outstanding  and  entitled  to  vote  of  that  Series  or  Class)  voting  at a
Shareholders'  meeting in person or by proxy on the  matter  shall  decide  that
matter insofar as that Series or Class is concerned.  Shareholders may act as to
the Trust or any Series or Class by the written  consent of a majority  (or such
other amount as may be required by applicable law) of the Outstanding  Shares of
the Trust or of such Series or Class, as the case may be.

     Section  3.  Additional   Provisions.   The  By-laws  may  include  further
provisions for Shareholders' votes and meetings and related matters.

                                 ARTICLE VIII

                       EXPENSES OF THE TRUST AND SERIES

     Section 1. Payment of Expenses by the Trust.  Subject to Article V, Section
4, the Trust or a particular  Series shall pay, or shall  reimburse the Trustees
from the assets  belonging  to all Series or the  particular  Series,  for their
expenses  (or  the  expenses  of a  Class  of such  Series)  and  disbursements,
including,  but not limited to,  interest  charges,  taxes,  brokerage  fees and
commissions;  expenses of issue,  repurchase and  redemption of Shares;  certain
insurance  premiums;  applicable  fees,  interest  charges and expenses of third
parties,  including the Trust's investment advisers,  managers,  administrators,
distributors, custodians, transfer agents and fund accountants; fees of pricing,
interest,  dividend, credit and other reporting services; costs of membership in
trade associations;  telecommunications  expenses;  funds transmission expenses;
auditing,  legal and  compliance  expenses;  costs of forming  the Trust and its
Series and  maintaining  its  existence;  costs of  preparing  and  printing the
prospectuses of the Trust and each Series,  statements of additional information
and  Shareholder  reports  and  delivering  them to  Shareholders;  expenses  of
meetings of Shareholders and proxy solicitations therefor;  costs of maintaining
books and accounts;  costs of  reproduction,  stationery and supplies;  fees and
expenses of the Trustees; compensation of the Trust's officers and employees and
costs of other personnel  performing services for the Trust or any Series; costs
of Trustee meetings; Commission registration fees and related expenses; state or
foreign  securities laws registration  fees and related  expenses;  and for such
non-recurring items as may arise,  including  litigation to which the Trust or a
Series (or a Trustee or officer of the Trust acting as such) is a party, and for
all losses and  liabilities  by them incurred in  administering  the Trust.  The
Trustees shall have a lien on the assets belonging to the appropriate Series, or
in the case of an expense  allocable  to more than one Series,  on the assets of
each such Series, prior to any rights or interests of the Shareholders  thereto,
for  the  reimbursement  to them of such  expenses,  disbursements,  losses  and
liabilities.

                                     E-21


<PAGE>




     Section 2. Payment of Expenses by Shareholders. The Trustees shall have the
power, as frequently as they may determine,  to cause each Shareholder,  or each
Shareholder of any particular  Series or Class,  to pay directly,  in advance or
arrears, for charges of the Trust's custodian or transfer, shareholder servicing
or similar agent, an amount fixed from time to time by the Trustees,  by setting
off such charges due from such  Shareholder  from declared but unpaid  dividends
owed such Shareholder  and/or by reducing the number of Shares in the account of
such  Shareholder  by  that  number  of  full  and/or  fractional  Shares  which
represents the outstanding amount of such charges due from such Shareholder.

                                  ARTICLE IX

                                MISCELLANEOUS

     Section 1. Trust Not a Partnership.  This  Declaration  creates a trust and
not a partnership. No Trustee shall have any power to bind personally either the
Trust's officers or any Shareholder.

     Section 2. Trustee Action. The exercise by the Trustees of their powers and
discretion   hereunder  in  good  faith  and  with  reasonable  care  under  the
circumstances then prevailing shall be binding upon everyone interested. Subject
to the  provisions of Article IV, the Trustees shall not be liable for errors of
judgment or mistakes of fact or law.

     Section  3.  Record  Dates.  The  Trustees  may fix in advance a date up to
ninety (90) days before the date of any Shareholders'  meeting,  or the date for
the  payment  of any  dividends  or  other  distributions,  or the  date for the
allotment of rights,  or the date when any change or  conversion  or exchange of
Shares  shall go into  effect  as a record  date  for the  determination  of the
Shareholders  entitled  to  notice  of,  and to vote at,  any such  meeting,  or
entitled  to  receive  payment of such  dividend  or other  distribution,  or to
receive any such  allotment of rights,  or to exercise such rights in respect of
any such change, conversion or exchange of Shares.

     Section 4.  Termination  of the Trust.  (a) This Trust shall have perpetual
existence.  Subject to the vote of a  majority  of the  Shares  outstanding  and
entitled to vote of the Trust or of each Series to be affected, the Trustees may

          (i) sell and  convey  all or  substantially  all of the  assets of all
     Series or any affected  Series to another Series or to another entity which
     is an  open-end  investment  company as  defined  in the 1940 Act,  or is a
     series  thereof,  for  adequate   consideration,   which  may  include  the
     assumption of all  outstanding  obligations,  taxes and other  liabilities,
     accrued or contingent,  of the Trust or any affected Series,  and which may
     include shares of or interests in such Series,  entity,  or series thereof;
     or

          (ii) at any time sell and convert into money all or substantially  all
     of the assets of all Series or any affected Series.

                                     E-22


<PAGE>




Upon making reasonable provision for the payment of all known liabilities of all
Series or any  affected  Series in either  (i) or (ii),  by such  assumption  or
otherwise,  the Trustees shall  distribute the remaining  proceeds or assets (as
the case may be) ratably  among the  Shareholders  of all Series or any affected
Series;  however,  the  payment to any  particular  Class of such  Series may be
reduced by any fees, expenses or charges allocated to that Class.

     (b) The Trustees may take any of the actions specified in subsection (a)(i)
and  (ii)  above  without  obtaining  the  vote  of a  majority  of  the  Shares
Outstanding and entitled to vote of the Trust or any Series if a majority of the
Trustees  determines that the  continuation of the Trust or Series is not in the
best interests of the Trust, such Series, or their respective  Shareholders as a
result of factors or events adversely affecting the ability of the Trust or such
Series to conduct its business and operations in an economically  viable manner.
Such  factors and events may include the  inability  of the Trust or a Series to
maintain  its assets at an  appropriate  size,  changes  in laws or  regulations
governing  the Trust or the Series or affecting  assets of the type in which the
Trust or Series invests, or economic developments or trends having a significant
adverse impact on the business or operations of the Trust or such Series.

     (c) Without  precluding any other rights of the Trustees in the Declaration
of Trust to redeem completely the Shares of a Class or to otherwise  terminate a
Class, a Class may be terminated without further approval of the Shareholders of
the  affected  Class,  if  a  majority  of  the  Trustees  determines  that  the
continuation  of the  Class is not in the  best  interests  of the  Class or the
respective shareholders as a result of factors or events adversely affecting the
ability of the Class to conduct its operations in an economically viable manner.
Such  factors and events may include,  but are not limited to, the  inability of
the Class to maintain its  proportionate  share of the assets at an  appropriate
size,   changes  in  laws  or  regulations   governing  the  Class  or  economic
developments or trends having a significant  adverse impact on the operations of
such Class.

     (d) Upon completion of the distribution of the remaining proceeds or assets
pursuant to subsections (a) and (c), the Trust or affected Series or Class shall
terminate  and the  Trustees  and the Trust shall be  discharged  of any and all
further  liabilities  and duties  hereunder with respect  thereto and the right,
title and interest of all parties therein shall be canceled and discharged. Upon
termination of the Trust or affected  Series or Class,  following  completion of
winding  up  of  its  business,  the  Trustees  shall  cause  a  certificate  of
cancellation of the Trust's  certificate of trust to be filed in accordance with
the Delaware Act,  which  certificate of  cancellation  may be signed by any one
Trustee.

     Section 5.  Reorganization.  (a)  Notwithstanding  anything else herein, to
change the Trust's  form or place of  organization  the  Trustees  may,  without
Shareholder  approval  unless such approval is required by  applicable  law, (i)
cause the Trust to merge or consolidate  with or into one or more  entities,  if
the surviving or resulting  entity is the Trust or another  open-end  management
investment company under the 1940 Act, or a series thereof, that will succeed to
or assume the Trust's  registration under the 1940 Act, (ii) cause the Shares to
be exchanged under or pursuant to any state or federal statute

                                     E-23


<PAGE>




to the extent  permitted by law, or (iii) cause the Trust to  incorporate  under
the laws of Delaware or any other U.S. jurisdiction.  Any agreement of merger or
consolidation  or  certificate of merger may be signed by a majority of Trustees
and facsimile signatures conveyed by electronic or telecommunication means shall
be valid.

     (b) Pursuant to and in accordance with the provisions of Section 3815(f) of
the  Delaware  Act,  an  agreement  of merger or  consolidation  approved by the
Trustees  in  accordance  with this  Section 5 may effect any  amendment  to the
Declaration or effect the adoption of a new trust  instrument of the Trust if it
is the surviving or resulting trust in the merger or consolidation.

     (c) The Trustees may create one or more business trusts to which all or any
part of the assets, liabilities, profits or losses of the Trust or any Series or
Class thereof may be transferred and may provide for the conversion of Shares in
the Trust or any Series or Class thereof into  beneficial  interests in any such
newly created trust or trusts or any series or classes thereof.

     Section 6. Declaration of Trust. The original or a copy of this Declaration
of Trust and of each amendment hereto or Declaration of Trust supplemental shall
be kept at the office of the Trust where it may be inspected by any Shareholder.
Anyone  dealing  with the Trust  may rely on a  certificate  by a Trustee  or an
officer of the Trust as to the  authenticity  of the Declaration of Trust or any
such  amendments or  supplements  and as to any matters in  connection  with the
Trust.  The  masculine  gender  herein  shall  include the  feminine  and neuter
genders.  Headings  herein  are for  convenience  only and shall not  affect the
construction  of this  Declaration  of Trust.  This  Declaration of Trust may be
executed  in any  number  of  counterparts,  each of which  shall be  deemed  an
original.

     Section 7. Applicable  Law. To the extent that the federal  securities laws
do not apply,  this Declaration and the Trust created  hereunder are governed by
and construed and administered  according to the Delaware Act and the applicable
laws of the  State of  Delaware;  provided,  however,  that  there  shall not be
applicable  to the Trust,  the  Trustees  or this  Declaration  of Trust (a) the
provisions  of  Section  3540  of  Title  12 of the  Delaware  Code,  or (b) any
provisions  of the laws  (statutory  or common) of the State of Delaware  (other
than the Delaware Act)  pertaining to trusts which relate to or regulate (i) the
filing  with any court or  governmental  body or agency of trustee  accounts  or
schedules of trustee fees and charges,  (ii)  affirmative  requirements  to post
bonds  for  trustees,  officers,  agents  or  employees  of a trust,  (iii)  the
necessity for obtaining  court or other  governmental  approval  concerning  the
acquisition,  holding or disposition of real or personal property,  (iv) fees or
other sums payable to trustees,  officers,  agents or employees of a trust,  (v)
the  allocation  of  receipts  and  expenditures  to income or  principal,  (vi)
restrictions or limitations on the permissible  nature,  amount or concentration
of trust investments or requirements  relating to the titling,  storage or other
manner of holding of trust assets,  or (vii) the  establishment  of fiduciary or
other  standards of  responsibilities  or  limitations  on the acts or powers of
trustees,  which  are  inconsistent  with  the  limitations  or  liabilities  or
authorities  and  powers  of the  Trustees  set  forth  or  referenced  in  this
Declaration.  The Trust shall be of the type commonly called a Delaware business
trust, and, without limiting the provisions hereof, the Trust may exercise all

                                     E-24


<PAGE>




powers which are  ordinarily  exercised by such a trust under  Delaware law. The
Trust  specifically  reserves  the  right  to  exercise  any  of the  powers  or
privileges  afforded to trusts or actions that may be engaged in by trusts under
the  Delaware  Act, and the absence of a specific  reference  herein to any such
power,  privilege or action shall not imply that the Trust may not exercise such
power or privilege or take such actions.

     Section 8.  Amendments.  The Trustees may,  without any  Shareholder  vote,
amend or  otherwise  supplement  this  Declaration  by  making an  amendment,  a
Declaration  of Trust  supplemental  hereto or an  amended  and  restated  trust
instrument;  provided,  that  Shareholders  shall  have the right to vote on any
amendment  (a) which would affect the voting rights of  Shareholders  granted in
Article  VII,  Section l, (b) to this  Section 8, (c) required to be approved by
Shareholders by law or by the Trust's  registration  statement(s) filed with the
Commission,  and (d) submitted to them by the Trustees in their discretion.  Any
amendment  submitted to Shareholders  which the Trustees  determine would affect
the  Shareholders of any Series shall be authorized by vote of the  Shareholders
of such  Series and no vote shall be required  of  Shareholders  of a Series not
affected.  Notwithstanding  anything  else herein,  any  amendment to Article IV
which would have the effect of reducing  the  indemnification  and other  rights
provided thereby to Trustees, officers, employees, and agents of the Trust or to
Shareholders  or  former  Shareholders,  and any  repeal  or  amendment  of this
sentence shall each require the affirmative vote of the holders of two-thirds of
the Outstanding Shares of the Trust entitled to vote thereon.

     Section 9. Derivative Actions. In addition to the requirements set forth in
Section 3816 of the Delaware Act, a Shareholder may bring a derivative action on
behalf of the Trust only if the following conditions are met:

     (a)  Shareholders  eligible  to bring  such  derivative  action  under  the
Delaware Act who hold at least ten percent  (10%) of the  Outstanding  Shares of
the Trust, or ten percent (10%) of the Outstanding Shares of the Series or Class
to which such action  relates,  shall join in the  request  for the  Trustees to
commence such action; and

     (b) the Trustees  must be afforded a reasonable  amount of time to consider
such  shareholder  request  and to  investigate  the  basis of such  claim.  The
Trustees  shall be entitled to retain  counsel or other  advisers in considering
the merits of the request and shall require an undertaking  by the  Shareholders
making such request to reimburse  the Trust for the expense of any such advisers
in the event that the Trustees determine not to bring such action.

     Section  10.  Fiscal  Year.  The  fiscal  year of the Trust  shall end on a
specified  date as set forth in the By-laws.  The Trustees may change the fiscal
year of the Trust without Shareholder approval.

     Section 11. Severability. The provisions of this Declaration are severable.
If the Trustees determine, with the advice of counsel, that any provision hereof
conflicts with the 1940 Act, the regulated  investment company provisions of the
Internal  Revenue  Code or with  other  applicable  laws  and  regulations,  the
conflicting  provision shall be deemed never to have  constituted a part of this
Declaration; provided, however, that such

                                     E-25


<PAGE>




determination  shall  not  affect  any  of  the  remaining  provisions  of  this
Declaration  or render  invalid or improper any action taken or omitted prior to
such   determination.   If  any  provision  hereof  shall  be  held  invalid  or
unenforceable in any  jurisdiction,  such invalidity or  unenforceability  shall
attach only to such provision only in such jurisdiction and shall not affect any
other provision of this Declaration.

     IN WITNESS WHEREOF, the undersigned have executed this instrument as of the
date first written above.

John F. Cogan, Jr.                      Marguerite A. Piret
as Trustee and not individually         as Trustee and not individually         
975 Memorial Drive, #802                162 Washington Street
Cambridge, MA 02138                     Belmont, MA 02178


Richard H. Egdahl, M.D.                 David D. Tripple
as Trustee and not individually         as Trustee and not individually
Health Policy Institute                 6 Woodbine Road
53 Bay State Road                       Belmont, MA 02178
Boston, MA 02215
                                                               

Margaret B.W. Graham                    Stephen K. West, Esq.
as Trustee and not individually         as Trustee and not individually
The Keep                                Sullivan & Cromwell
P.O. Box 110                            125 Broad Street
Little Deer Isle, ME 04650              New York, NY 10004
                                                              

John W. Kendrick                        John Winthrop
as Trustee and not individually         as Trustee and not individually
Hyatt Residence, Apt. 1521              One North Adgers Wharf
8100 Connecticut Avenue                 Charleston, SC 29401
Chevy Chase, MD 20815
                                     E-26


<PAGE>



                           PIONEER MONEY MARKET TRUST
                                    By-laws












                                          Adopted:    March 31, 1995


<PAGE>


                               Table of Contents

<TABLE>
<CAPTION>
                                                                                        PAGE

ARTICLE I: Definitions....................................................................1

ARTICLE II: Offices.......................................................................1
       <S>        <C>                                                                     <C>                       
       Section 1: Principal Office........................................................1
       Section 2: Other Offices...........................................................1
       Section 3: Registered Office and Registered Agent..................................1

ARTICLE III: Shareholders.................................................................1-3
       <S>        <C>                                                                     <C>                       
       Section 1: Meetings................................................................1-2
       Section 2: Notice of Meetings......................................................2
       Section 3: Record Date for Meeting
                  and Other Purposes......................................................2
       Section 4: Proxies.................................................................2-3
       Section 5: Abstentions and Broker Non-Votes........................................3
       Section 6: Inspection of Records...................................................3
       Section 7: Action without Meeting..................................................3

ARTICLE IV: Trustees......................................................................4
       <S>        <C>                                                                     <C>                       
       Section 1: Meetings of the Trustees................................................4
       Section 2: Quorum and Manner of Acting.............................................4

ARTICLE V: Committees.....................................................................5
       <S>        <C>                                                                     <C>                       
       Section 1: Executive and Other Committees..........................................5
       Section 2: Meetings, Quorum and Manner of Acting...................................5

ARTICLE VI: Officers......................................................................5-8
       <S>        <C>                                                                     <C>                       
       Section 1:  General Provisions.....................................................5-6
       Section 2:  Term of Office and Qualifications......................................6
       Section 3:  Removal................................................................6
       Section 4:  Powers and Duties of the Chairman......................................6
       Section 5:  Powers and Duties of the President.....................................6-7
       Section 6:  Powers and Duties of Vice Presidents...................................7
       Section 7:  Powers and Duties of the Treasurer.....................................7
       Section 8:  Powers and Duties of the Secretary.....................................7
       Section 9:  Powers and Duties of Assistant
                   Officers...............................................................7-8
       Section 10: Powers and Duties of Assistant
                   Secretaries............................................................8
       Section 11: Compensation of Officers and
                   Trustees and Members of the Advisory
                   Board..................................................................8

ARTICLE VII: Fiscal Year..................................................................8

ARTICLE VIII: Seal........................................................................8

ARTICLE IX: Sufficiency and Waivers of Notice.............................................8-9

ARTICLE X: Amendments.....................................................................9


</TABLE>


<PAGE>







                                    BY-LAWS

                                       OF

                           PIONEER MONEY MARKET TRUST

                                   ARTICLE I

                                  DEFINITIONS


     All  capitalized  terms  have the  respective  meanings  given  them in the
Agreement and Declaration of Trust of Pioneer Money Market Trust dated March 31,
1995, as amended or restated from time to time.


                                   ARTICLE II

                                    OFFICES

     Section 1. Principal Office.  Until changed by the Trustees,  the principal
office of the Trust shall be in Boston, Massachusetts.

     Section 2. Other  Offices.  The Trust may have offices in such other places
without as well as within the State of Delaware as the Trustees may from time to
time determine.

     Section 3. Registered  Office and Registered  Agent.  The Board of Trustees
shall  establish a registered  office in the State of Delaware and shall appoint
as the Trust's  registered agent for service of process in the State of Delaware
an individual  resident of the State of Delaware or a Delaware  corporation or a
corporation  authorized to transact  business in the State of Delaware;  in each
case the business office of such  registered  agent for service of process shall
be identical with the registered Delaware office of the Trust.


                                  ARTICLE III

                                  SHAREHOLDERS

     Section 1. Meetings.  Meetings of the Shareholders of the Trust or a Series
or Class thereof shall be held as provided in the  Declaration  of Trust at such
place within or without the State of Delaware as the Trustees  shall  designate.
The holders of one-third of the  Outstanding  Shares of the Trust or a Series or
Class  thereof  present  in  person  or by  proxy  and  entitled  to vote  shall
constitute a quorum at any meeting of the  Shareholders of the Trust or a Series
or Class thereof.

     Section 2. Notice of Meetings.  Notice of all meetings of the Shareholders,
stating  the time,  place and  purposes  of the  meeting,  shall be given by the
Trustees by mail or telegraphic or electronic  means to each  Shareholder at his
address as recorded on the  register of the Trust  mailed at least (10) days and
not more than sixty (60) days before the meeting, provided, however, that notice
of a meeting need not be given to a Shareholder  to whom such notice need not be
given under the proxy rules of the Commission  under the Investment  Company Act
of 1940 and the Securities  Exchange Act of 1934, as amended.  Only the business
stated in the notice of the meeting shall be  considered  at such  meeting.  Any
adjourned  meeting may be held as adjourned  without further  notice.  No notice
need be given to any  Shareholder  who shall have  failed to inform the Trust of
his current  address or if a written waiver of notice,  executed before or after
the meeting by the Shareholder or his attorney  thereunto  authorized,  is filed
with the records of the meeting.

     Section 3. Record Date for Meetings and Other Purposes.  For the purpose of
determining  the  Shareholders  who are entitled to notice of and to vote at any
meeting, or to participate in any distribution,  or for the purpose of any other
action,  the Trustees  may from time to time close the  transfer  books for such
period,  not  exceeding  thirty (30) days,  as the  Trustees may  determine;  or
without  closing the  transfer  books the  Trustees may fix a date not more than
<PAGE>

ninety  (90) nor less than ten (10)  days  prior to the date of any  meeting  of
Shareholders  or  distribution  or  other  action  as  a  record  date  for  the
determination  of the persons to be treated as  Shareholders  of record for such
purposes,   except  for  dividend  payments  which  shall  be  governed  by  the
Declaration of Trust.

     Section  4.  Proxies.  At any  meeting  of  Shareholders,  any  Shareholder
entitled  to vote  thereat  may vote by proxy,  provided  that no proxy shall be
voted  at any  meeting  unless  it  shall  have  been  placed  on file  with the
Secretary, or with such other officer or agent of the Trust as the Secretary may
direct,  for verification prior to the time at which such vote shall be taken. A
proxy shall be deemed  signed if the  Shareholder's  name is placed on the proxy
(whether by manual signature, typewriting, telegraphic transmission,  facsimile,
other  electronic  means or otherwise) by the  Shareholder or the  Shareholder's
attorney-in-fact.  Proxies may be given by any  electronic or  telecommunication
device except as otherwise provided in the Declaration of Trust.  Proxies may be
solicited in the name of one or more  Trustees or one or more of the officers of
the Trust.  Only  Shareholders  of record shall be entitled to vote.  Each whole
Share  shall be entitled to one vote as to any matter on which it is entitled by
the  Declaration of Trust to vote and  fractional  Shares shall be entitled to a
proportionate  fractional  vote.  When any  Share  is held  jointly  by  several
persons,  any one of them  may  vote at any  meeting  in  person  or by proxy in
respect  of such  Share,  but if more than one of them  shall be present at such
meeting in person or by proxy, and such joint owners or their proxies so present
disagree  as to any vote to be cast,  such vote shall not be received in respect
of  such  Share.  A  proxy  purporting  to be  executed  by or  on  behalf  of a
Shareholder shall be deemed valid unless challenged at or prior to its exercise,
and the burden of proving invalidity shall rest on the challenger. If the holder
of any such  Share is a minor  or a person  of  unsound  mind,  and  subject  to
guardianship  or the legal  control of any other person as regards the charge or
management  of such  Share,  he may vote by his  guardian  or such other  person
appointed  or having  such  control,  and such vote may be given in person or by
proxy.

     Section 5. Abstentions and Broker Non-Votes. Outstanding Shares represented
in  person  or by proxy  (including  Shares  which  abstain  or do not vote with
respect to one or more of any proposals presented for Shareholder approval) will
be counted for purposes of determining whether a quorum is present at a meeting.
Abstentions  will be treated as Shares that are present and entitled to vote for
purposes of  determining  the number of Shares that are present and  entitled to
vote with respect to any particular proposal,  but will not be counted as a vote
in favor of such  proposal.  If a broker or  nominee  holding  Shares in "street
name"  indicates on the proxy that it does not have  discretionary  authority to
vote as to a particular proposal, those Shares will not be considered as present
and entitled to vote with respect to such proposal.

     Section 6. Inspection of Records. The records of the Trust shall be open to
inspection by Shareholders to the same extent as is permitted  shareholders of a
Delaware business corporation.

     Section  7.  Action  without  Meeting.  Any  action  which  may be taken by
Shareholders may be taken without a meeting if a majority of Outstanding  Shares
entitled  to vote on the matter (or such larger  proportion  thereof as shall be
required by law)  consent to the action in writing and the written  consents are
filed with the records of the meetings of  Shareholders.  Such consents shall be
treated for all purposes as a vote taken at a meeting of Shareholders.


                                   ARTICLE IV

                                    TRUSTEES

     Section 1. Meetings of the Trustees.  The Trustees may in their  discretion
provide for regular or stated  meetings  of the  Trustees.  Notice of regular or
stated  meetings need not be given.  Meetings of the Trustees other than regular
or stated meetings shall be held whenever called by the President,  the Chairman
or by any one of the Trustees,  at the time being in office.  Notice of the time
and place of each meeting other than regular or stated  meetings  shall be given
by the Secretary or an Assistant  Secretary or by the officer or Trustee calling
the  meeting  and shall be mailed to each  Trustee at least two days  before the
meeting,  or shall be given by telephone,  cable,  wireless,  facsimile or other
electronic  mechanism  to each Trustee at his business  address,  or  personally
delivered to him at least one day before the meeting.  Such notice may, however,
be waived by any  Trustee.  Notice of a meeting need not be given to any Trustee
if a written waiver of notice,  executed by him before or after the meeting,  is

                                       2
<PAGE>

filed with the records of the meeting, or to any Trustee who attends the meeting
without  protesting  prior thereto or at its  commencement the lack of notice to
him. A notice or waiver of notice need not  specify the purpose of any  meeting.
The  Trustees  may meet by means of a  telephone  conference  circuit or similar
communications  equipment  by means of which all  persons  participating  in the
meeting  can hear each  other at the same time and  participation  by such means
shall be deemed to have been held at a place  designated  by the Trustees at the
meeting.  Participation  in a  telephone  conference  meeting  shall  constitute
presence in person at such meeting. Any action required or permitted to be taken
at any meeting of the Trustees may be taken by the Trustees without a meeting if
a majority  of the  Trustees  consent to the action in writing  and the  written
consents are filed with the records of the  Trustees'  meetings.  Such  consents
shall be treated as a vote for all purposes.

     Section 2. Quorum and Manner of Acting. A majority of the Trustees shall be
present in person at any regular or special  meeting of the Trustees in order to
constitute a quorum for the  transaction of business at such meeting and (except
as otherwise required by law, the Declaration of Trust or these By-laws) the act
of a majority of the Trustees present at any such meeting,  at which a quorum is
present,  shall  be the act of the  Trustees.  In the  absence  of a  quorum,  a
majority of the Trustees present may adjourn the meeting from time to time until
a quorum shall be present. Notice of an adjourned meeting need not be given.


                                   ARTICLE V

                                   COMMITTEES

     Section  1.  Executive  and Other  Committees.  The  Trustees  by vote of a
majority  of all the  Trustees  may elect  from  their own  number an  Executive
Committee  to consist of not less than three (3)  members to hold  office at the
pleasure of the Trustees,  which shall have the power to conduct the current and
ordinary business of the Trust while the Trustees are not in session,  including
the purchase and sale of  securities  and the  designation  of  securities to be
delivered upon redemption of Shares of the Trust or a Series  thereof,  and such
other powers of the Trustees as the Trustees may delegate to them,  from time to
time,  except  those  powers  which by law,  the  Declaration  of Trust or these
By-laws they are prohibited  from  delegating.  The Trustees may also elect from
their own number other  Committees from time to time; the number  composing such
Committees,  the powers conferred upon the same (subject to the same limitations
as with respect to the Executive  Committee)  and the term of membership on such
Committees  to be  determined  by the  Trustees.  The Trustees  may  designate a
chairman of any such Committee. In the absence of such designation the Committee
may elect its own Chairman.

     Section 2.  Meetings,  Quorum and Manner of Acting.  The  Trustees  may (1)
provide for stated meetings of any Committee,  (2) specify the manner of calling
and notice  required  for  special  meetings of any  Committee,  (3) specify the
number of members of a Committee  required to constitute a quorum and the number
of members of a Committee  required to exercise  specified  powers  delegated to
such  Committee,  (4)  authorize  the making of decisions to exercise  specified
powers by written  assent of the  requisite  number of  members  of a  Committee
without a meeting, and (5) authorize the members of a Committee to meet by means
of a telephone conference circuit.

     The  Executive  Committee  shall keep  regular  minutes of its meetings and
records of decisions  taken without a meeting and cause them to be recorded in a
book designated for that purpose and kept in the office of the Trust.


                                   ARTICLE VI

                                    OFFICERS

     Section  1.  General  Provisions.  The  officers  of the  Trust  shall be a
President,  a Treasurer  and a Secretary,  who shall be elected by the Trustees.
The Trustees may elect or appoint such other  officers or agents as the business
of the Trust may require,  including  one or more Vice  Presidents,  one or more
Assistant  Secretaries,  and one or more Assistant Treasurers.  The Trustees may
delegate  to any  officer  or  committee  the power to appoint  any  subordinate
officers or agents.

     Section 2. Term of Office and Qualifications.  Except as otherwise provided
by law, the Declaration of Trust or these By-laws, the President, the Treasurer,
the  Secretary  and any other  officer shall each hold office at the pleasure of

                                       3
<PAGE>

the Board of Trustees or until his  successor  shall have been duly  elected and
qualified.  The  Secretary  and the  Treasurer  may be the same  person.  A Vice
President  and the  Treasurer or a Vice  President  and the Secretary may be the
same person,  but the offices of Vice  President,  Secretary and Treasurer shall
not be held by the same person. The President shall hold no other office but may
hold an  appointment  as  Chairman  of the  Board of  Trustees.  Except as above
provided, any two offices may be held by the same person. Any officer may be but
none need be a Trustee or Shareholder.

     Section 3. Removal. The Trustees,  at any regular or special meeting of the
Trustees,  may remove any officer with or without cause, by a vote of a majority
of the Trustees then in office.  Any officer or agent appointed by an officer or
committee  may be removed with or without  cause by such  appointing  officer or
committee.

     Section 4. Powers and Duties of the  Chairman.  The Trustees  shall appoint
from  among  their  number a  Chairman.  When  present  he shall  preside at the
meetings of the  Shareholders  and of the Trustees.  He may call meetings of the
Trustees and of any committee  thereof whenever he deems it necessary.  He shall
be an executive officer of the Trust and shall have, with the President, general
supervision  over  the  business  and  policies  of the  Trust,  subject  to the
limitations imposed upon the President, as provided in Section 5 of this Article
VI.

     Section 5.  Powers  and Duties of the  President.  The  President  may call
meetings of the Trustees and of any Committee thereof when he deems it necessary
and shall preside at all meetings of the Shareholders. Subject to the control of
the Trustees and to the control of any Committees of the Trustees,  within their
respective spheres, as provided by the Trustees,  he shall at all times exercise
a general supervision and direction over the affairs of the Trust. He shall have
the power to employ  attorneys  and counsel for the Trust or any Series or Class
thereof and to employ such subordinate officers, agents, clerks and employees as
he may find  necessary  to transact  the  business of the Trust or any Series or
Class  thereof.  He shall also have the power to grant,  issue,  execute or sign
such powers of attorney,  proxies or other documents as may be deemed  advisable
or necessary in furtherance of the interests of the Trust or any Series or Class
thereof.  The President shall have such other powers and duties, as from time to
time may be conferred upon or assigned to him by the Trustees.

     Section  6.  Powers  and  Duties  of Vice  Presidents.  In the  absence  or
disability of the  President,  the Vice  President or, if there be more than one
Vice President, any Vice President designated by the Trustees, shall perform all
the duties and may exercise any of the powers of the  President,  subject to the
control of the Trustees.  Each Vice President shall perform such other duties as
may be assigned to him from time to time by the Trustees and the President.

     Section 7. Powers and Duties of the Treasurer.  The Treasurer  shall be the
principal  financial and accounting  officer of the Trust.  He shall deliver all
funds of the Trust or any Series or Class  thereof which may come into his hands
to such  Custodian as the  Trustees  may employ.  He shall render a statement of
condition  of the  finances  of the Trust or any Series or Class  thereof to the
Trustees as often as they shall require the same and he shall in general perform
all the duties  incident to the office of a Treasurer  and such other  duties as
from time to time may be assigned to him by the Trustees.  The  Treasurer  shall
give a bond for the faithful  discharge  of his duties,  if required so to do by
the Trustees, in such sum and with such surety or sureties as the Trustees shall
require.

     Section 8. Powers and Duties of the Secretary. The Secretary shall keep the
minutes of all meetings of the Trustees and of the  Shareholders in proper books
provided for that  purpose;  he shall have custody of the seal of the Trust;  he
shall have charge of the Share transfer books, lists and records unless the same
are in the charge of a transfer agent. He shall attend to the giving and serving
of all notices by the Trust in accordance  with the  provisions of these By-laws
and as  required  by law;  and  subject  to these  By-laws,  he shall in general
perform all duties  incident to the office of Secretary and such other duties as
from time to time may be assigned to him by the Trustees.

     Section 9.  Powers  and Duties of  Assistant  Officers.  In the  absence or
disability  of the  Treasurer,  any officer  designated  by the  Trustees  shall
perform all the duties,  and may exercise any of the powers,  of the  Treasurer.
Each  officer  shall  perform  such  other  duties  as from  time to time may be
assigned  to him  by the  Trustees.  Each  officer  performing  the  duties  and
exercising  the powers of the  Treasurer,  if any, and any Assistant  Treasurer,
shall give a bond for the faithful discharge of his duties, if required so to do

                                       4
<PAGE>

by the  Trustees,  in such sum and with such surety or sureties as the  Trustees
shall require.

     Section 10. Powers and Duties of Assistant  Secretaries.  In the absence or
disability of the Secretary,  any Assistant Secretary designated by the Trustees
shall  perform  all the  duties,  and may  exercise  any of the  powers,  of the
Secretary. Each Assistant Secretary shall perform such other duties as from time
to time may be assigned to him by the Trustees.

     Section  11.  Compensation  of  Officers  and  Trustees  and Members of the
Advisory  Board.  Subject to any  applicable  provisions of the  Declaration  of
Trust,  the compensation of the officers and Trustees and members of an advisory
board  shall be  fixed  from  time to time by the  Trustees  or,  in the case of
officers,  by any  Committee or officer upon whom such power may be conferred by
the Trustees.  No officer shall be prevented from receiving such compensation as
such officer by reason of the fact that he is also a Trustee.


                                  ARTICLE VII

                                  FISCAL YEAR

     The  fiscal  year of the Trust  shall  begin on the first day of January in
each year and  shall end on the last day of  December  in each  year,  provided,
however,  that the Trustees  may from time to time change the fiscal  year.  The
taxable year of each Series of the Trust shall be as  determined by the Trustees
from time to time.


                                  ARTICLE VIII

                                      SEAL

     The  Trustees  may adopt a seal which  shall be in such form and shall have
such inscription thereon as the Trustees may from time to time prescribe.


                                   ARTICLE IX

                       SUFFICIENCY AND WAIVERS OF NOTICE

     Whenever  any  notice  whatever  is  required  to  be  given  by  law,  the
Declaration  of Trust or these By-laws,  a waiver thereof in writing,  signed by
the person or persons entitled to said notice,  whether before or after the time
stated therein,  shall be deemed equivalent thereto. A notice shall be deemed to
have  been  sent  by  mail,  telegraph,  cable,  wireless,  facsimile  or  other
electronic means for the purposes of these By-laws when it has been delivered to
a representative  of any company holding itself out as capable of sending notice
by such means with instructions that it be so sent.


                                   ARTICLE X

                                   AMENDMENTS

     These By-laws, or any of them, may be altered,  amended or repealed, or new
By-laws  may be  adopted  by (a) vote of a majority  of the  Outstanding  Shares
voting in person or by proxy at a meeting of  Shareholders  and entitled to vote
or (b) by the  Trustees,  provided,  however,  that no  By-law  may be  amended,
adopted or  repealed  by the  Trustees  if such  amendment,  adoption  or repeal
requires,  pursuant to law, the Declaration of Trust or these By-laws, a vote of
the Shareholders.


                                 END OF BY-LAWS


                                           ADOPTED:       March 31, 1995






                              MANAGEMENT CONTRACT


     THIS  AGREEMENT  dated this 31st day of March,  1995 between  Pioneer Money
Market Trust, a Delaware business trust (the "Trust"), on behalf of Pioneer Cash
Reserves  Fund,  an  investment  portfolio of the Trust (the  "Portfolio"),  and
Pioneering Management Corporation, a Delaware corporation (the "Manager").

                                  WITNESSETH:

     WHEREAS,  the Trust is  registered  as an open-end,  management  investment
company under the  Investment  Company Act of 1940, as amended (the "1940 Act"),
and has filed with the Securities and Exchange  Commission (the  "Commission") a
registration  statement  (the  "Registration  Statement")  for  the  purpose  of
registering  its shares for public offering under the Securities Act of 1933, as
amended,

     WHEREAS,  the Trust  currently  issues three separate series of shares each
representing interests in one portfolio of investments,

     WHEREAS, the parties hereto deem it mutually  advantageous that the Manager
should be engaged,  subject to the  supervision of the Trust's Board of Trustees
and officers, to manage the Portfolio,

     NOW,  THEREFORE,  in consideration of the mutual covenants and benefits set
forth herein,  the Trust, on behalf of the Portfolio,  and the Manager do hereby
agree as follows:

     1. (a) The Manager will regularly provide investment  research,  advice and
supervision  and  will  furnish  continuously  an  investment  program  for  the
Portfolio  consistent  with  the  investment  objectives  and  policies  of  the
Portfolio. The Manager will determine from time to time what securities shall be
purchased  for the  Portfolio,  what  securities  shall  be held or sold for the
Portfolio's  account and what  portion of the  Portfolio's  assets shall be held
uninvested as cash,  subject always to the  provisions of the Trust's  Agreement
and Declaration of Trust ("Declaration of Trust"),  By-Laws and its registration
statements  under the 1940 Act and under the Securities Act of 1933 covering the
Trust's shares, as filed with the Commission,  and to the investment objectives,
policies and  restrictions  of the Portfolio,  as each of the same shall be from
time to time in effect, and subject,  further, to such policies and instructions
as the Board of Trustees of the Trust may from time to time establish.  To carry
out such determinations,  the Manager will exercise full discretion and act with
respect to the  Portfolio  in the same manner and with the same force and effect
as the Trust itself might or could do with respect to purchases,  sales or other
transactions,  as  well  as  with  respect  to all  other  things  necessary  or
incidental  to the  furtherance  or  conduct of such  purchases,  sales or other
transactions.

              (b) The Manager  will,  to the extent  reasonably  required in the
conduct of  business of the  Portfolio  and upon the  Trust's  request,  furnish
research,  statistical  and advisory  reports upon the  industries,  businesses,
corporations  or securities as to which such requests shall be made,  whether or
not the  Portfolio  shall at the time have any  investment  in such  industries,
businesses, corporations or securities. The Manager will use its best efforts in
the  preparation  of such  reports and will  endeavor to consult the persons and
sources  believed  by it to have  information  available  with  respect  to such
industries, businesses, corporations or entities.

              (c) The Manager  will  maintain all books and records with respect
to the Portfolio's  securities  transactions  required by subparagraphs  (b)(5),
(6), (9) and (10) and paragraph (f) of Rule 31a-1 under the 1940 Act (other than
those records being  maintained by the custodian or transfer agent  appointed by
the Trust with  respect to the  Portfolio)  and  preserve  such  records for the
periods prescribed therefor by Rule 31a-2 of the 1940 Act. The Manager will also
provide to the Board of Trustees such periodic and special  reports as the Board
may reasonably request.

     2. The Manager recognizes that the Trust has created,  and may from time to
time create,  additional investment portfolios of the Trust, that this agreement
relates  only to the  management  of the assets of the  Portfolio,  and that the
management of the assets of any  additional  portfolio of the Trust are subject,
or will be subject, to one or more separate investment management agreements.

     3. (a)  Except  as  otherwise  provided  herein,  the  Manager,  at its own
expense,  shall  furnish to the Trust office space in the offices of the Manager
<PAGE>

or in such  other  place  as may be  agreed  upon  from  time to  time,  and all
necessary  office  facilities,  equipment and personnel for managing the affairs
and investments with respect to the Portfolio,  and shall arrange, if desired by
the Trust,  for members of the  Manager's  organization  to serve as officers or
agents of the Trust.

              (b) The Manager shall pay directly or reimburse the Trust for: (i)
the compensation (if any) of the Trustees who are affiliated with, or interested
persons  of, the Manager  and all  officers  of the Trust as such;  and (ii) all
expenses  not  hereinafter  specifically  assumed by the Trust or the  Portfolio
where such expenses are incurred by the Manager or by the Trust or the Portfolio
in  connection  with the  management of the affairs of, and the  investment  and
reinvestment of the assets of, the Portfolio.

              (c) The Trust shall assume and shall pay: (i) charges and expenses
for fund  accounting,  pricing and  appraisal  services  and  related  overhead,
including, to the extent such services are performed by personnel of the Manager
or its  affiliates,  office space and  facilities  and  personnel  compensation,
training and  benefits;  (ii) the charges and  expenses of  auditors;  (iii) the
charges and expenses of any  custodian,  transfer  agent,  plan agent,  dividend
disbursing  agent and  registrar  appointed  by the Trust  with  respect  to the
Portfolio;  (iv) issue and transfer taxes, chargeable to the Trust in connection
with  securities  transactions  to which  the  Trust is a party;  (v)  insurance
premiums,  interest charges,  dues and fees for membership in trade associations
and all taxes and corporate fees payable by the Trust to federal, state or other
governmental  agencies;  (vi) fees and  expenses  involved  in  registering  and
maintaining  registrations  of the Trust and/or its shares with the  Commission,
state or blue sky  securities  agencies  and foreign  countries,  including  the
preparation of Prospectuses and Statements of Additional  Information for filing
with the Commission;  (vii) all expenses of shareholders' and Trustees' meetings
and  of  preparing,  printing  and  distributing  prospectuses,  notices,  proxy
statements and all reports to shareholders and to governmental agencies;  (viii)
charges and  expenses of legal  counsel to the Trust and to the  Trustees;  (ix)
distribution fees paid by the Trust in accordance with Rule 12b-1 promulgated by
the Commission  pursuant to the 1940 Act; (x)  compensation of those Trustees of
the Trust who are not affiliated with or interested persons of the Manager,  the
Trust  (other than as  Trustees),  The  Pioneer  Group,  Inc.  or Pioneer  Funds
Distributor,  Inc.; (xi) the cost of preparing and printing share  certificates;
and (xii) interest on borrowed money, if any.

              (d) In addition to the  expenses  described in Section 3(c) above,
the Trust shall pay all brokers' and underwriting  commissions chargeable to the
Trust in connection with securities transactions to which the Trust is a party.

     4.  (a)  The  Trust  shall  pay to the  Manager,  as  compensation  for the
Manager's  services  hereunder,  a fee at the  rate of  0.40%  per  annum of the
Portfolio's average daily net assets. The management fee payable hereunder shall
be computed  daily and paid monthly in arrears.  In the event of  termination of
this Agreement,  the fee provided in this Section shall be computed on the basis
of the period  ending on the last  business  day on which this  Agreement  is in
effect subject to a pro rata  adjustment  based on the number of days elapsed in
the current month as a percentage of the total number of days in such month.

              (b) If the operating  expenses of the Portfolio in any year exceed
the limits set by state securities laws or regulations in states in which shares
of the Portfolio are sold,  the amount  payable to the Manager under  subsection
(a) above will be reduced (but not below $0),  and the Manager  shall make other
arrangements  concerning  expenses  but,  in each  instance,  only as and to the
extent  required  by such laws or  regulation.  If  amounts  have  already  been
advanced  to the Manager  under this  Agreement,  the  Manager  will return such
amounts to the Trust to the extent required by the preceding sentence.

              (c) In  addition  to the  foregoing,  the Manager may from time to
time agree not to impose all or a portion of its fee otherwise payable hereunder
(in advance of the time such fee or a portion  thereof would  otherwise  accrue)
and/or  undertake  to pay or  reimburse  the Trust  for all or a portion  of its
expenses not otherwise  required to be borne or  reimbursed by the Manager.  Any
such fee reduction or undertaking may be discontinued or modified by the Manager
at any time.

     5. The  Manager  will not be liable for any error of judgment or mistake of
law or for any loss sustained by reason of the adoption of any investment policy
or the purchase, sale, or retention of any security on the recommendation of the
Manager,  whether or not such recommendation  shall have been based upon its own
investigation and research made upon any other individual,  firm or corporation,

                                       2
<PAGE>

nothing  contained  herein will be construed to protect the Manager  against any
liability  to the Trust or Portfolio  or its  shareholders  by reason of willful
misfeasance,  bad faith or gross  negligence in the performance of its duties or
by reason of its  reckless  disregard of its  obligations  and duties under this
Agreement.

     6. (a)  Nothing in this  Agreement  will in any way limit or  restrict  the
Manager or any of its officers,  directors, or employees from buying, selling or
trading in any securities for its or their own accounts or other  accounts.  The
Manager  may  act  as an  investment  advisor  to  any  other  person,  firm  or
corporation  and may perform  management  and any other  services  for any other
person, association,  corporation, firm or other entity pursuant to any contract
or  otherwise,  and take any action or do any thing in  connection  therewith or
related  thereto;  and no such  performance  of management or other  services or
taking of any such  action  or doing of any such  thing  shall be in any  manner
restricted  or  otherwise  affected  by any  aspect of any  relationship  of the
Manager  to or with the Trust or deemed to  violate  or give rise to any duty or
obligation  of the Manager to the Trust except as otherwise  imposed by law. The
Trust  recognizes that the Manager,  in effecting  transactions  for its various
accounts,  may not always be able to take or liquidate  investment  positions in
the same security at the same time and at the same price.

              (b) In connection with purchases or sales of portfolio  securities
for the account of the Portfolio,  neither the Manager nor any of its Directors,
officers or employees will act as a principal or agent or receive any commission
except as permitted by the 1940 Act. The Manager  shall  arrange for the placing
of all orders for the purchase and sale of portfolio  securities for the account
of the  Portfolio  with  brokers  or dealers  selected  by the  Manager.  In the
selection of such brokers or dealers and the placing of such orders, the Manager
is directed at all times to seek for the Portfolio the most favorable  execution
and net price available except as described  herein.  It is also understood that
it is desirable for the Portfolio  that the Manager have access to  supplemental
investment and market  research and security and economic  analyses  provided by
brokers who may execute brokerage transactions at a higher cost to the Portfolio
than may  result  when  allocating  brokerage  to other  brokers on the basis of
seeking the most favorable price and efficient execution. Therefore, the Manager
is authorized  to place orders for the purchase and sale of  securities  for the
Portfolio's account with such brokers, subject to review by the Trust's Trustees
from time to time with respect to the extent and  continuation of this practice.
It is understood that the services provided by such brokers may be useful to the
Manager in connection with its or its affiliates'  services to other clients. In
addition,  subject  to the  Manager's  obligation  to seek  the  most  favorable
execution and net price  available,  the Manager may consider the sale of shares
of the Portfolio and shares of other funds in the Pioneer Family of Mutual Funds
in selecting brokers and dealers.

              (c) On occasions  when the Manager deems the purchase or sale of a
security to be in the best interest of the  Portfolio as well as other  clients,
the Manager,  to the extent  permitted by applicable laws and  regulations,  may
aggregate  the  securities  to be sold or  purchased in order to obtain the best
execution and lower brokerage commissions,  if any. In such event, allocation of
the  securities  so purchased or sold,  as well as the expenses  incurred in the
transaction,  will be made by the Manager in the manner it  considers  to be the
most equitable and consistent  with its fiduciary  obligations to the Portfolios
and to such clients.

     7. This  Agreement  shall  become  effective  on the date  hereof and shall
remain in force until May 31, 1996 and from year to year thereafter, but only so
long as its  continuance  is approved  annually by a vote of the Trustees of the
Trust voting in person, including a majority of its Trustees who are not parties
to this  Agreement or interested  persons (as the term  "interested  persons" is
defined in the 1940 Act) of any such  parties,  at a meeting of Trustees  called
for the purpose of voting on such  approval  or by a vote of a "majority  of the
outstanding  voting  securities"  (as defined in the 1940 Act) of the  Portfolio
subject to the right of the Trust and the Manager to terminate  this contract as
provided in Section 8 hereof.

     8. Either party hereto may,  without  penalty,  terminate this Agreement by
vote of its Board of Directors or its Board of Trustees,  as the case may be, or
by vote of a "majority of its outstanding  voting securities" (as defined in the
1940 Act) of the  Portfolio  and the  giving of 60 days'  written  notice to the
other party.

     9.  This  Agreement  shall  automatically  terminate  in the  event  of its
assignment. For purposes of this Agreement, the term "assignment" shall have the

                                       3
<PAGE>

meaning given it in Section 2(a)(4) of the 1940 Act.

     10. The  Manager is an  independent  contractor  and not an employee of the
Trust or Portfolio  for any purpose.  If any occasion  should arise in which the
Manager gives any advice to its clients  concerning the shares of the Portfolio,
the Manager  will act solely as  investment  counsel for such clients and not in
any way on behalf of the Trust or Portfolio.

     11. This Agreement states the entire  agreement of the parties hereto,  and
is intended to be the complete and exclusive  statement of the terms hereof.  It
may not be added to or changed  orally,  and may not be  modified  or  rescinded
except by a writing signed by the parties hereto and in accordance with the 1940
Act, when applicable.

     12. To the extent that federal securities laws do not apply, this Agreement
and all performance  hereunder shall be governed by the laws of The Commonwealth
of  Massachusetts,  which apply to  contracts  made and to be  performed  in The
Commonwealth of Massachusetts.

     13.  Any  term  or  provision  of  this  Agreement   which  is  invalid  or
unenforceable in any jurisdiction  shall, as to such jurisdiction be ineffective
to the extent of such invalidity or  unenforceability  without rendering invalid
or  unenforceable  the  remaining  terms  or  provisions  of this  Agreement  or
affecting  the validity or  enforceability  of any of the terms or provisions of
this Agreement in any other jurisdiction.

     14.  The  parties  to  this  Agreement   acknowledge  and  agree  that  all
liabilities arising hereunder,  whether direct or indirect, and of any and every
nature  whatsoever  shall be satisfied solely out of the assets of the Portfolio
and that no Trustee,  officer or holder of shares of beneficial  interest of the
Trust  shall be  personally  liable for any of the  foregoing  liabilities.  The
Trust's  Declaration  of Trust,  as amended from time to time, is on file in the
office  of the  Trust.  Such  Declaration  of  Trust  describes  in  detail  the
respective  responsibilities  and  limitations  on  liability  of the  Trustees,
officers, and holders of shares of beneficial interest.

     15.  This  Agreement  may  be  executed   simultaneously  in  two  or  more
counterparts,  each of  which  shall be  deemed  an  original,  but all of which
together shall constitute one and the same instrument.

     IN WITNESS  WHEREOF,  the parties  hereto have caused this  Agreement to be
executed by their duly  authorized  officers and their seal to be hereto affixed
as of the day and year first above written.

ATTEST:                               PIONEER MONEY MARKET TRUST
                                      on behalf of:
                                      Pioneer Cash Reserves Fund

/s/ Joseph P. Barri                   /s/ John F. Cogan, Jr.

____________________________          By:____________________________
Secretary                                President


ATTEST:                               PIONEERING MANAGEMENT CORPORATION


/s/ Joseph P. Barri                   /s/ John F. Cogan, Jr.

____________________________          By:____________________________
Secretary                                 President








                                       4
<PAGE>

              SCHEDULE OF OMITTED INVESTMENT MANAGEMENT CONTRACTS

     Due  to the  substantial  similarity  of  Investment  Management  Contracts
between  Pioneering  Management  Corporation and Pioneer Money Market Trust (the
"Trust")  on behalf  of each of its  funds,  the  following  form of  Investment
Management Contract on behalf of Pioneer Cash Reserves Fund and this schedule of
omitted  documents is filed in accordance  with the  requirements  of Rule 8b-31
under the Investment Company Act of 1940.

1.   Name of Series:           Pioneer U.S. Government Money Fund
                               Pioneer Tax-Free Money Fund








                             UNDERWRITING AGREEMENT


         THIS UNDERWRITING AGREEMENT,  dated this 31st day of March 1995, by and
between Pioneer Money Market Trust, a Delaware business trust (the "Trust"), and
Pioneer   Funds   Distributor,    Inc.,   a   Massachusetts   corporation   (the
"Underwriter").


                              W I T N E S S E T H

         WHEREAS,   the  Trust  is  registered  as  an  open-end,   diversified,
management  investment  company  under the  Investment  Company Act of 1940,  as
amended  (the  "1940  Act"),  and  has  filed  a  registration   statement  (the
"Registration  Statement")  with the  Securities  and Exchange  Commission  (the
"Commission") for the purpose of registering  shares of beneficial  interest for
public offering under the Securities Act of 1933, as amended;

         WHEREAS, the Underwriter engages in the purchase and sale of securities
both as a broker  and a dealer and is  registered  as a  broker-dealer  with the
Commission  and is a member in good  standing  of the  National  Association  of
Securities Dealers, Inc. (the "NASD");

         WHEREAS,  the parties  hereto deem it  mutually  advantageous  that the
Underwriter should act as Principal Underwriter, as defined in the 1940 Act, for
the sale to the public of the shares of  beneficial  interest of the  securities
portfolio of each series of the Trust which the Trustees may establish from time
to time (individually, a "Portfolio" and collectively, the "Portfolios"); and

         NOW,  THEREFORE,  in consideration of the mutual covenants and benefits
set forth herein, the Trust and the Underwriter do hereby agree as follows:

         1. The Trust does hereby grant to the  Underwriter the right and option
to purchase shares of beneficial interest of each class of each Portfolio of the
Trust (the "Shares") for sale to investors either directly or indirectly through
other broker-dealers.  The Underwriter is not required to purchase any specified
number of Shares,  but will purchase from the Trust only a sufficient  number of
Shares as may be necessary to fill  unconditional  orders  received from time to
time by the Underwriter from investors and dealers.

         2. The  Underwriter  shall  offer  Shares to the public at an  offering
price based upon the net asset value of the Shares,  to be  calculated  for each
class of  Shares as  described  in the  Registration  Statement,  including  the
Prospectus, filed with the Commission and in effect at the time of the offering,
plus any sales  charges as approved by the  Underwriter  and the Trustees of the
Trust and as further  outlined in the Trust's  Prospectus.  The  offering  price
shall be subject to any provisions set forth in the Prospectus from time to time
with respect thereto,  including,  without  limitation,  rights of accumulation,
letters of intention,  exchangeability of shares,  reinstatement privileges, net
asset value  purchases by certain  persons and  reinvestments  of dividends  and
capital gain distributions.

         3.  In  the  case  of  all  Shares  sold  to  investors  through  other
broker-dealers, a portion of applicable sales charges, if any, will be reallowed
to such  broker-dealers  who are  members of the NASD or, in the case of certain
sales by banks or  certain  sales to  foreign  nationals,  to brokers or dealers
exempt from  registration  with the  Commission.  The  concession  reallowed  to
broker-dealers  shall be set forth in a  written  sales  agreement  and shall be
generally the same for broker-dealers  providing  comparable levels of sales and
service.

         4. This  Agreement  shall  terminate on any  anniversary  hereof if its
terms and renewal have not been  approved by a majority  vote of the Trustees of
the Trust  voting in person,  including a majority of its  Trustees  who are not
"interested  persons" of the Trust and who have no direct or indirect  financial
interest  in  the  operation  of  the  Underwriting  Agreement  (the  "Qualified
Trustees"),  at a meeting of  Trustees  called for the purpose of voting on such
approval.  This Agreement may also be terminated at any time, without payment of
any penalty,  by the Trust on 60 days' written notice to the Underwriter,  or by
the  Underwriter  upon similar  notice to the Trust.  This Agreement may also be
terminated by a party upon five (5) days'  written  notice to the other party in
the event that the  Commission  has issued an order or obtained an injunction or
other  court  order  suspending  effectiveness  of  the  Registration  Statement
<PAGE>

covering the Shares of the Trust. Finally, this Agreement may also be terminated
by the Trust  upon five (5) days'  written  notice to the  Underwriter  provided
either of the  following  events has  occurred:  (i) the NASD has  expelled  the
Underwriter  or  suspended  its  membership  in that  organization;  or (ii) the
qualification,  registration, license or right of the Underwriter to sell Shares
in a particular  state has been suspended or cancelled in a state in which sales
of the Shares of the Trust during the most recent 12 month  period  exceeded 10%
of all Shares of the Trust sold by the Underwriter during such period.

         5. The  compensation for the services of the Underwriter as a principal
underwriter  under  this  Agreement  shall be (i) that part of the sales  charge
which is retained by the Underwriter  after allowance of discounts to dealers as
set forth in the Registration  Statement,  including the Prospectus,  filed with
the Commission and in effect at the time of the offering,  as amended,  and (ii)
those amounts payable to the Underwriter as reimbursement  of expenses  pursuant
to any  applicable  distribution  plan for the  Trust  which  may be in  effect.
Nothing  contained  herein shall relieve the Trust of any  obligation  under its
management contract or any other contract with any affiliate of the Underwriter.

         6.  The  parties  to this  Agreement  acknowledge  and  agree  that all
liabilities  arising  hereunder,  whether  direct  or  indirect,  of any  nature
whatsoever, including without limitation, liabilities arising in connection with
any  agreement of the Trust or its Trustees as set forth herein to indemnify any
party to this  Agreement or any other person,  if any, shall be satisfied out of
the  assets  of the Trust and that no  Trustee,  officer  or holder of shares of
beneficial  interest  of the Trust  shall be  personally  liable  for any of the
foregoing liabilities. The Trust's Certificate of Trust, as amended from time to
time,  is on file in the Office of  Secretary of State of the State of Delaware,
and a copy of the Trust's  Declaration  of Trust,  as amended from time to time,
has been provided to the  Underwriter.  The  Declaration  of Trust  describes in
detail the  respective  responsibilities  and  limitations  on  liability of the
Trustees, officers, and holders of Shares of the Trust.

         7. This  Agreement  shall  automatically  terminate in the event of its
assignment (as that term is defined in the 1940 Act).

         8. In the event of any dispute  between  the  parties,  this  Agreement
shall be construed according to the laws of The Commonwealth of Massachusetts.




                                       2
<PAGE>


         IN WITNESS  WHEREOF,  the parties hereto have caused this instrument to
be  executed  by their  duly  authorized  officers  and their  seal to be hereto
affixed as of day and year first above written.

ATTEST:                                     PIONEER MONEY MARKET TRUST


/s/ Robert Nault                            /s/ John F. Cogan, Jr.

----------------------------                ---------------------------
Robert Nault                                John F. Cogan, Jr.
Assistant Secretary                         President


ATTEST:                                     PIONEER FUNDS DISTRIBUTOR, INC.

/s/ William Keough                          /s/ Robert L. Butler

---------------------------                 ---------------------------
William Keough                              Robert L. Butler
Treasurer                                   President



                                       3
<PAGE>


                               AGREEMENT BETWEEN







                         BROWN BROTHERS HARRIMAN & CO.







                                      AND







                           PIONEER CASH RESERVES FUND





<PAGE>


                              CUSTODIAN AGREEMENT



AGREEMENT made this 23rd day of December,  1991,  between  PIONEER CASH RESERVES
FUND, an investment  portfolio of PIONEER MONEY MARKET TRUST (said portfolio and
trust herein  referred to as the "Fund") and Brown Brothers  Harriman & Co. (the
"Custodian");  WITNESSETH:  That in  consideration  of the mutual  covenants and
agreements herein contained, the parties hereto agree as follows:

1.  Employment of Custodian:  The Fund hereby employs and appoints the Custodian
as a custodian for the term and subject to the provisions of this Agreement. The
Custodian  shall  not be under any duty or  obligation  to  require  the Fund to
deliver  to it any  securities  or funds  owned by the  Fund and  shall  have no
responsibility  or  liability  for or on account of  securities  or funds not so
delivered. The Fund will deposit with the Custodian copies of the Declaration of
Trust or Certificate of Incorporation  and By-Laws (or comparable  documents) of
the  Fund and all  amendments  thereto,  and  copies  of such  votes  and  other
proceedings  of the Fund as may be necessary  for or convenient to the Custodian
in the performance of its duties.

2. Powers and Duties of the Custodian  with respect to Property of the Fund held
by the Custodian:  Except for securities and funds held by any  Subcustodians or
held  by the  Custodian  through  a  non-U.S.  securities  depository  appointed
pursuant to the  provisions of Section 3 hereof,  the  Custodian  shall have and
perform the following powers and duties:

A. Safekeeping - To keep safely the securities and other assets of the Fund that
have been  delivered to the Custodian  and, on behalf of the Fund,  from time to
time to receive delivery of securities for safekeeping.

B. Manner of Holding Securities - To hold securities of the Fund (1) by physical
possession of the share  certificates  or other  instruments  representing  such
securities  in  registered  or  bearer  form,  or (2) in  book-entry  form  by a
Securities System (as said term is defined in Section 2U).

C. Registered Name;  Nominee - To hold registered  securities of the Fund (1) in
the name or any nominee name of the Custodian or the Fund, or in the name or any
nominee  name of any Agent  appointed  pursuant  to Section 6F, or (2) in street
certificate form,  so-called,  and in any case with or without any indication of
fiduciary  capacity,  provided  that  securities  are held in an  account of the
Custodian containing only assets of the Fund or only assets held as fiduciary or
custodian for customers.

D. Purchases - Upon receipt of Proper Instructions, as defined in

 Section X on Page 17,  insofar as funds are available  for the purpose,  to pay
for and receive securities  purchased for the account of the Fund, payment being
made only upon  receipt  of the  securities  (1) by the  Custodian,  or (2) by a
clearing corporation of a national securities exchange of which the Custodian is
a member, or (3) by a Securities System.  However, (i) in the case of repurchase
agreements  entered into by the Fund,  the  Custodian  (as well as an Agent) may
release funds to a Securities  System or to a Subcustodian  prior to the receipt
of  advice  from the  Securities  System  or  Subcustodian  that the  securities
underlying  such repurchase  agreement have been  transferred by book entry into
the  Account  (as  defined  in  Section  2U) of the  Custodian  (or such  Agent)
maintained with such Securities System or Subcustodian,  so long as such payment
instructions to the Securities System or Subcustodian include a requirement that
delivery is only  against  payment for  securities,  (ii) in the case of foreign
exchange  contracts,  options,  time deposits,  call account deposits,  currency
deposits, and other deposits,  contracts or options pursuant to Sections 2J, 2L,
2M and 2N,  the  Custodian  may  make  payment  therefor  without  receiving  an
instrument  evidencing said deposit,  contract or option so long as such payment
instructions detail specific securities to be acquired, and (iii) in the case of
securities  in which  payment for the  security  and  receipt of the  instrument
evidencing the security are under generally accepted trade practice or the terms
of the instrument  representing the security expected to take place in different
locations or through separate parties, such as commercial paper which is indexed
to foreign  currency  exchange rates,  derivatives and similar  securities,  the
Custodian  may make  payment for such  securities  prior to delivery  thereof in
accordance  with such  generally  accepted  trade  practice  or the terms of the
instrument representing such security.

<PAGE>

E. Exchanges - Upon receipt of proper instructions,  to exchange securities held
by it for the account of the Fund for other  securities in  connection  with any
reorganization,  recapitalization,  split-up  of  shares,  change of par  value,
conversion  or other  event  relating  to the  securities  or the issuer of such
securities  and to deposit any such  securities in accordance  with the terms of
any  reorganization  or  protective  plan.  Without  proper  instructions,   the
Custodian may surrender securities in temporary form for definitive  securities,
may surrender  securities  for transfer into a name or nominee name as permitted
in  Section  2C,  and  may  surrender  securities  for  a  different  number  of
certificates  or  instruments  representing  the same  number  of shares or same
principal amount of indebtedness, provided the securities to be issued are to be
delivered to the Custodian.

F. Sales of Securities - Upon receipt of proper  instructions,  to make delivery
of securities which have been sold for the account of the Fund, but only against
payment therefor (1) in cash, by a certified check,  bank cashier's check,  bank
credit, or bank wire transfer,  or (2) by credit to the account of the Custodian
with a clearing  corporation  of a  national  securities  exchange  of which the
Custodian  is a member,  or (3) by credit to the account of the  Custodian or an
Agent of the Custodian with a Securities System; provided,  however, that (i) in
the case of  delivery  of  physical  certificates  or  instruments  representing
securities, the Custodian may make delivery to the broker buying the securities,
against receipt  therefor,  for examination in accordance with "street delivery"
custom, provided that the payment therefor is to be made to the Custodian (which
payment  may be made by a  broker's  check)  or that such  securities  are to be
returned to the  Custodian,  and (ii) in the case of  securities  referred to in
clause  (iii) of the  last  sentence  of  Section  2D,  the  Custodian  may make
settlement,  including with respect to the form of payment,  in accordance  with
generally  accepted trade practice  relating to such  securities or the terms of
the instrument representing said security.

G.  Depositary  Receipts - Upon  receipt of proper  instructions,  to instruct a
Subcustodian  or an Agent to surrender  securities to the depositary  used by an
issuer of American  Depositary  Receipts or  International  Depositary  Receipts
(hereinafter  collectively  referred to as "ADRs") for such securities against a
written  receipt  therefor  adequately  describing  such  securities and written
evidence  satisfactory  to the  Subcustodian  or Agent that the  depositary  has
acknowledged  receipt of  instructions  to issue with respect to such securities
ADRs in the name of the Custodian,  or a nominee of the Custodian,  for delivery
to the  Custodian  in  Boston,  Massachusetts,  or at such  other  place  as the
Custodian may from time to time designate.

Upon receipt of proper  instructions,  to surrender  ADRs to the issuer  thereof
against a written receipt  therefor  adequately  describing the ADRs surrendered
and written  evidence  satisfactory to the Custodian that the issuer of the ADRs
has acknowledged  receipt of instructions to cause its depositary to deliver the
securities underlying such ADRs to a Subcustodian or an Agent.

H.  Exercise  of  Rights;   Tender  Offers  -  Upon  timely  receipt  of  proper
instructions,  to deliver to the issuer or trustee  thereof,  or to the agent of
either,  warrants,  puts, calls, rights or similar securities for the purpose of
being  exercised or sold,  provided  that the new  securities  and cash, if any,
acquired by such action are to be delivered to the Custodian,  and, upon receipt
of proper  instructions,  to deposit  securities upon invitations for tenders of
securities,  provided that the  consideration  is to be paid or delivered or the
tendered securities are to be returned to the Custodian.

I. Stock Dividends,  Rights,  Etc. - To receive and collect all stock dividends,
rights and other  items of like  nature;  and to deal with the same  pursuant to
proper instructions relative thereto.

J.  Options - Upon  receipt  of  proper  instructions,  to  receive  and  retain
confirmations or other documents evidencing the purchase of writing of an option
on a security or  securities  index by the Fund;  to deposit  and  maintain in a
segregated  account,  either physically or by book-entry in a Securities System,
securities  subject to a covered call option written by the Fund; and to release
and/or  transfer such  securities  or other assets only in  accordance  with the
provisions of any agreement  among the Fund,  the Custodian and a  broker-dealer
relating  to such  securities  or other  assets a notice or other  communication
evidencing  the  expiration,  termination  or  exercise of such  covered  option
furnished  by The  Options  Clearing  Corporation,  the  securities  or  options
exchange on which such covered  option is traded or such other  organization  as
may be responsible for handling such options transactions.

K. Borrowings - Upon receipt of proper  instructions,  to deliver  securities of

                                       2
<PAGE>

the Fund to lenders or their agents as collateral for borrowings effected by the
Fund,  provided that such borrowed  money is payable to or upon the  Custodian's
order as Custodian for the Fund.

L. Demand  Deposit Bank Accounts - To open and operate an account or accounts in
the name of the Fund on the Custodian's  books subject only to draft or order by
the  Custodian.  All funds  received by the Custodian from or for the account of
the Fund shall be  deposited in said  account(s).  The  responsibilities  of the
Custodian to the Fund for deposits  accepted on the  Custodian's  books shall be
that of a U. S. bank for a similar deposit.

If and when  authorized  by  proper  instructions,  the  Custodian  may open and
operate an additional  account(s) in such other banks or trust  companies as may
be designated by the Fund in such  instructions  (any such bank or trust company
so  designated   by  the  Fund  being   referred  to  hereafter  as  a  "Banking
Institution"),  provided that such account(s) (hereinafter collectively referred
to as "demand deposit bank accounts")  shall be in the name of the Custodian for
account of the Fund and subject  only to the  Custodian's  draft or order.  Such
demand deposit  accounts may be opened with Banking  Institutions  in the United
States and in other  countries and may be denominated in either U. S. Dollars or
other currencies as the Fund may determine. All such deposits shall be deemed to
be portfolio  securities of the Fund and accordingly the  responsibility  of the
Custodian  therefore  shall be the same as and no greater  than the  Custodian's
responsibility in respect of other portfolio securities of the Fund.

M. Interest Bearing Call or Time Deposits - To place interest bearing fixed term
and call  deposits with such banks and in such amounts as the Fund may authorize
pursuant to proper instructions.  Such deposits may be placed with the Custodian
or with  Subcustodians or other Banking  Institutions as the Fund may determine.
Deposits may be denominated in U. S. Dollars or other currencies and need not be
evidenced  by the  issuance  or  delivery  of a  certificate  to the  Custodian,
provided  that the  Custodian  shall  include in its records with respect to the
assets of the Fund  appropriate  notation as to the amount and  currency of each
such deposit,  the accepting Banking Institution and other appropriate  details,
and shall retain such forms of advice or receipt evidencing the deposit, if any,
as may be forwarded to the Custodian by the Banking Institution.  Such deposits,
other than those placed with the Custodian, shall be deemed portfolio securities
of the Fund and the responsibilities of the Custodian therefor shall be the same
as those for demand deposit bank accounts  placed with other banks, as described
in Section K of this  Agreement.  The  responsibility  of the Custodian for such
deposits  accepted on the Custodian's  books shall be that of a U. S. bank for a
similar deposit.

N.  Foreign  Exchange  Transactions  and  Futures  Contracts  Pursuant to proper
instructions,  to enter into foreign  exchange  contracts or options to purchase
and sell foreign  currencies for spot and future  delivery on behalf and for the
account of the Fund. Such  transactions  may be undertaken by the Custodian with
such Banking  Institutions,  including  the  Custodian  and  Subcustodian(s)  as
principals,  as approved and authorized by the Fund.  Foreign exchange contracts
and options other than those executed with the Custodian,  shall be deemed to be
portfolio  securities  of the Fund  and the  responsibilities  of the  Custodian
therefor shall be the same as those for demand deposit bank accounts placed with
other banks as described in Section 2L of this agreement. Upon receipt of proper
instructions,  to receive and retain  confirmations  evidencing  the purchase or
sale of a futures  contract or an option on a futures  contract by the Fund;  to
deposit and  maintain in a  segregated  account,  for the benefit of any futures
commission  merchant  or to pay to  such  futures  commission  merchant,  assets
designated by the fund as initial,  maintenance or variation  "margin"  deposits
intended to secure the Fund's  performance of its obligations  under any futures
contracts  purchased or sold or any options on futures  contracts written by the
Fund, in accordance with the provisions of any agreement or agreements among any
of the Fund, the Custodian and such futures commission  merchant,  designated to
comply with the rules of the Commodity  Futures  Trading  Commission  and/or any
contract market, or any similar  organization or  organizations,  regarding such
margin  deposits;  and to release and/or transfer assets in such margin accounts
only in accordance with any such agreements or rules.

0. Stock Loans - Upon receipt of proper  instructions,  to deliver securities of
the Fund,  in  connection  with loans of securities by the Fund, to the borrower
thereof prior to receipt of the collateral, if any, for such borrowing, provided
that for stock loans secured by cash collateral the Custodian's  instructions to
the  Securities  System  require  that the  Securities  System may  deliver  the
securities to the borrower  thereof only upon receipt of the collateral for such
borrowing.

                                       3
<PAGE>

P. Collections - To collect, receive and deposit in said account or accounts all
income,  payments of principal and other payments with respect to the securities
held hereunder, and in connection therewith to deliver the certificates or other
instruments  representing the securities to the issuer thereof or its agent when
securities are called, redeemed,  retired or otherwise become payable; provided,
that the  payment is to be made in such form and manner and at such time,  which
may be after  delivery  by the  Custodian  of the  instrument  representing  the
security, as is in accordance with the terms of the instrument  representing the
security,  or  such  proper  instructions  as  the  Custodian  may  receive,  or
governmental  regulations,  the  rules  of  Securities  Systems  or  other  U.S.
securities  depositories  and clearing  agencies or, with respect to  securities
referred to in clause  (iii) of the last  sentence of Section 2D, in  accordance
with generally  accepted  trade  practice;  (ii) to execute  ownership and other
certificates and affidavits for all federal and state tax purposes in connection
with receipt of income or other  payments with respect to securities of the Fund
or in  connection  with  transfer of  securities,  and (iii)  pursuant to proper
instructions to take such other actions with respect to collection or receipt of
funds or transfer of securities which involve an investment decision.

Q.   Dividends,   Distributions   and  Redemptions  -  Upon  receipt  of  proper
instructions  from the  Fund,  or upon  receipt  of  instructions  from the Fund
shareholder  servicing agent or agent with comparable  duties (the  "Shareholder
Servicing  Agent") (given by such person or persons and in such manner on behalf
of the  Shareholder  Servicing  Agent as the Fund  shall have  authorized),  the
Custodian shall release funds or securities to the  Shareholder  Servicing Agent
or otherwise apply funds or securities, insofar as available, for the payment of
dividends or other  distributions to Fund  shareholders.  Upon receipt of proper
instructions from the Fund, or upon receipt of instructions from the Shareholder
Servicing Agent (given by such person or persons and in such manner on behalf of
the  Shareholder  Servicing  Agent  as the  Fund  shall  have  authorized),  the
Custodian  shall  release  funds or  securities,  insofar as  available,  to the
Shareholder  Servicing  Agent or as such  Agent  shall  otherwise  instruct  for
payment to Fund  shareholders  who have  delivered  to such Agent a request  for
repurchase or redemption of their shares of capital stock of the Fund.

R. Proxies, Notices, Etc. - Promptly to deliver or mail to the Fund all forms of
proxies  and all  notices of  meetings  and any other  notices or  announcements
affecting or relating to  securities  owned by the Fund that are received by the
Custodian,  and upon receipt of proper  instructions,  to execute and deliver or
cause its nominee to execute and deliver such proxies or other authorizations as
may be required.  Neither the  Custodian  nor its nominee shall vote upon any of
such securities or execute any proxy to vote thereon or give any consent or take
any other action with respect  thereto  (except as  otherwise  herein  provided)
unless ordered to do so by proper instructions.

S.  Nondiscretionary  Details - Without the  necessity of express  authorization
from the Fund, (1) to attend to all nondiscretionary  details in connection with
the sale,  exchange,  substitution,  purchase,  transfer or other  dealings with
securities,  funds or other  property  of the  Portfolio  held by the  Custodian
except as otherwise  directed  from time to time by the Directors or Trustees of
the Fund,  and (2) to make  payments  to itself or others for minor  expenses of
handling  securities or other similar items relating to the  Custodian's  duties
under this Agreement,  provided that all such payments shall be accounted for to
the Fund.

T.  Bills - Upon  receipt  of proper  instructions,  to pay or cause to be paid,
insofar as funds are  available  for the purpose,  bills,  statements,  or other
obligations of the Fund.

U.  Deposit of Fund Assets in  Securities  Systems - The  Custodian  may deposit
and/or  maintain  securities  owned  by the  Fund  in (i) The  Depository  Trust
Company,  (ii) any  book-entry  system as  provided  in  Subpart  0 of  Treasury
Circular  No. 300, 31 CFR 306,  Subpart B of 31 CFR Part 350, or the  book-entry
regulations of federal agencies substantially in the form of Subpart 0, or (iii)
any other domestic  clearing agency  registered with the Securities and Exchange
Commission  under Section 17A of the Securities  Exchange Act of 1934 which acts
as a securities  depository  and whose use the Fund has  previously  approved in
writing  (each  of the  foregoing  being  referred  to in  this  Agreement  as a
"Securities System").  Utilization of a Securities System shall be in accordance
with  applicable  Federal  Reserve Board and Securities and Exchange  Commission
rules and regulations, if any, and subject to the following provisions:

1) The Custodian may deposit and/or maintain Fund securities, either directly or
through one or more Agents  appointed by the Custodian  (provided  that any such
agent  shall be  qualified  to act as a  custodian  of the Fund  pursuant to the

                                       4
<PAGE>

Investment Company Act of 1940 and the rules and regulations  thereunder),  in a
Securities  System  provided that such  securities are represented in an account
("Account") of the Custodian or such Agent in the Securities  System which shall
not  include  any assets of the  Custodian  or Agent other than assets held as a
fiduciary, custodian, or otherwise for customers;

2) The records of the Custodian with respect to securities of the Fund which are
maintained in a Securities  System shall identify by book-entry those securities
belonging to the Fund;

3) The Custodian shall pay for securities  purchased for the account of the Fund
upon (i) receipt of advice from the Securities  System that such securities have
been transferred to the Account,  and (ii) the making of an entry on the records
of the  Custodian  to reflect  such  payment and transfer for the account of the
Fund. The Custodian  shall transfer  securities sold for the account of the Fund
upon (i) receipt of advice  from the  Securities  System  that  payment for such
securities has been transferred to the Account,  and (ii) the making of an entry
on the records of the  Custodian  to reflect  such  transfer and payment for the
account  of the  Fund.  Copies  of all  advices  from the  Securities  System of
transfers of securities  for the account of the Fund shall identify the Fund, be
maintained  for the Fund by the Custodian or an Agent as referred to above,  and
be provided to the Fund at its request.  The  Custodian  shall  furnish the Fund
confirmation  of each transfer to or from the account of the Fund in the form of
a written  advice  or  notice  and  shall  furnish  to the Fund  copies of daily
transaction  sheets reflecting each day's  transactions in the Securities System
for the account of the Fund on the next business day;

4) The  Custodian  shall  provide  the Fund  with  any  report  obtained  by the
Custodian  or  any  Agent  as  referred  to  above  on the  Securities  System's
accounting system,  internal  accounting control and procedures for safeguarding
securities deposited in the Securities System; and the Custodian and such Agents
shall send to the Fund such reports on their own systems of internal  accounting
control as the Fund may reasonably request from time to time.

5) At the written  request of the Fund,  the Custodian will terminate the use of
any such Securities System on behalf of the Fund as promptly as practicable.

V. Other Transfers - Upon receipt of proper instructions, to deliver securities,
funds and other property of the Fund to a Subcustodian  or another  custodian of
the  Fund;  and,  upon  receipt  of  proper  instructions,  to make  such  other
disposition of securities, funds or other property of the Fund in a manner other
than or for  purposes  other than as  enumerated  elsewhere  in this  Agreement,
provided  that the  instructions  relating to such  disposition  shall include a
statement  of the  purpose for which the  delivery is to be made,  the amount of
securities  to be  delivered  and the  name of the  person  or  persons  to whom
delivery is to be made.

W.  Investment  Limitations  - In  performing  its  duties  generally,  and more
particularly  in connection  with the purchase,  sale and exchange of securities
made by or for the Fund,  the Custodian may assume unless and until  notified in
writing to the  contrary  that  proper  instructions  received  by it are not in
conflict with or in any way contrary to any provisions of the Fund's Declaration
of Trust or Certificate of Incorporation or By-Laws (or comparable documents) or
votes or proceedings of the shareholders or Directors of the Fund. The Custodian
shall in no event be liable to the Fund and shall be indemnified by the Fund for
any violation which occurs in the course of carrying out  instructions  given by
the Fund of any  investment  limitations  to which the Fund is  subject or other
limitations  with respect to the Fund's  powers to make  expenditures,  encumber
securities, borrow or take similar actions affecti0ng the Fund.

X. Proper  Instructions - Proper instructions shall mean a tested telex from the
Fund or a written request,  direction,  instruction or  certification  signed or
initialled  on behalf of the Fund by one or more  person or persons as the Board
of  Directors  or Trustees of the Fund shall have from time to time  authorized,
provided,   however,  that  no  such  instructions  directing  the  delivery  of
securities or the payment of funds to an authorized  signatory of the Fund shall
be signed by such person.  Those persons authorized to give proper  instructions
may be  identified  by the Board of  Directors  or  Trustees  by name,  title or
position  and will  include at least one officer  empowered by the Board to name
other  individuals  who are authorized to give proper  instructions on behalf of
the Fund.  Telephonic or other oral  instructions  given by any one of the above
persons will be  considered  proper  instructions  if the  Custodian  reasonably
believes  them  to  have  been  given  by  a  person  authorized  to  give  such
instructions with respect to the transaction involved. Oral instructions will be
confirmed  by tested  telex or in writing in the manner set forth  above but the

                                       5
<PAGE>

lack of such  confirmation  shall  in no way  affect  any  action  taken  by the
Custodian  in reliance  upon such oral  instructions.  The Fund  authorizes  the
Custodian to tape record any and all telephonic or other oral instructions given
to the  Custodian by or on behalf of the Fund  (including  any of its  officers,
Directors,  Trustees,  employees or agents) and will deliver to the  Custodian a
similar authorization from any investment manager or adviser or person or entity
with similar  reponsibilities which is authorized to give proper instructions on
behalf of the Fund to the Custodian.  Proper instructions may relate to specific
transactions or to types or classes of  transactions,  and may be in the form of
standing instructions.

Proper  instructions  may  include  communications   effected  directly  between
electromechanical or electronic devices or systems, in addition to tested telex,
provided  that the Fund and the  Custodian  agree to the use of such  device  or
system.

Y. Segregated Account - The Custodian shall upon receipt of proper  instructions
establish and maintain on its books a segregated  account or accounts for and on
behalf of the Fund,  into which  account or  accounts  may be  transferred  cash
and/or securities of the Fund, including securities  maintained by the Custodian
pursuant to Section 2U hereof,  (i) in  accordance  with the  provisions  of any
agreement among the Fund, the Custodian and a broker-dealer registered under the
Securities  Exchange  Act of 1934 and a member of the  National  Association  of
Securities  Dealers,  Inc. (or any futures commission  merchant registered under
the Commodity Exchange Act) relating to compliance with the rules of the Options
Clearing  Corporation and of any registered national securities exchange (or the
Commodity Futures Trading Commission or any registered  contract market), or any
similar organization or organizations, regarding escrow or other arrangements in
connection with  transactions by the Pund, (ii) for purposes of segregating cash
or securities in connection with options purchased,  sold or written by the Fund
or commodity futures contracts or options thereon purchased or sold by the Fund,
(iii) for the purposes of compliance by the Fund with the procedures required by
Investment  Company Act Release No. 10666, or any subsequent release or releases
of the  Securities  and  Exchange  Commission  relating  to the  maintenance  of
segregated  accounts by registered  investment  companies,  and (iv) as mutually
agreed from time to time between the Fund and the Custodian.

3.  Powers and  Duties of the  Custodian  with  Respect  to the  Appointment  of
Subcustodians:  The Fund hereby  authorizes  and instructs the Custodian to hold
securities,  funds and other property of the Fund which are  maintained  outside
the United States at subcustodians  appointed pursuant to the provisions of this
Section  3 (a  "Subcustodian").  The  Fund  shall  approve  in  writing  (1) the
appointment of each  Subcustodian and the  subcustodian  agreement to be entered
into between such Subcustodian and the Custodian, and (2) if the Subcustodian is
organized under the laws of a country other than the United States,  the country
or countries in which the  Subcustodian is authorized to hold  securities,  cash
and other property of the Fund. The Fund hereby further authorizes and instructs
the  Custodian  and any  Subcustodian  to utilize such  securities  depositories
located  outside the United  States which are approved in writing by the Fund to
hold securities,  cash and other property of the Fund. Upon such approval by the
Fund,  the  Custodian  is  authorized  on  behalf  of the  Fund to  notify  each
Subcustodian  of its  appointment as such. The Custodian may, at any time in its
discretion,  remove any  Subcustodian  that has been  appointed as such but will
promptly notify the Fund of any such action.

Those  Subcustodians,  and the countries  where and the securities  depositories
through which they or the Custodian may hold securities, cash and other property
of the Fund  which the Fund has  approved  to date are set forth on  Appendix  A
hereto.  Such  Appendix  shall be  amended  from time to time as  Subcustodians,
and/or countries and/or securities  depositories are changed,  added or deleted.
The Fund shall be  responsible  for  informing  the  Custodian  sufficiently  in
advance of a proposed  investment which is to be held in a country not listed on
Appendix  A, in order that there shall be  sufficient  time for the Fund to give
the approval  required by the  preceding  paragraph and for the Custodian to put
the  appropriate  arrangements  in  place  with  such  Subcustodian,   including
negotiation  of a  subcustodian  agreement and  submission of such  subcustodian
agreement to the Fund for approval.

If the Fund shall have invested in a security to be held in a country before the
foregoing  procedures have been  completed,  such security shall be held by such
agent as the Custodian may appoint.  In any event, the Custodian shall be liable
to the  Fund  for the  actions  of such  agent  if and  only to the  extent  the
Custodian  shall have  recovered from such agent for any damages caused the Fund
by such  agent.  At the  request  of the Fund,  Custodian  agrees to remove  any
securities  held on  behalf  of the  Fund by such  agent,  if  practical,  to an

                                       6
<PAGE>

approved  Subcustodian.  Under such circumstances  Custodian will collect income
and respond to corporate actions on a best efforts basis.

With respect to securities and funds held by a Subcustodian,  either directly or
indirectly   (including  by  a  securities   depository  or  clearing   agency),
notwithstanding  any provision of this  Agreement to the  contrary,  payment for
securities  purchased  and  delivery  of  securities  sold may be made  prior to
receipt of the  securities or payment,  respectively,  and securities or payment
may be received in a form, in accordance with governmental regulations, rules of
securities  depositories  and clearing  agencies,  or generally  accepted  trade
practice in the applicable local market.

In the event that any Subcustodian  appointed pursuant to the provisions of this
Section 3 fails to perform any of its obligations under the terms and conditions
of the  applicable  subcustodian  agreement,  the  Custodian  shall use its best
efforts to cause such  Subcustodian  to perform such  obligations.  In the event
that the  Custodian is unable to cause such  Subcustodian  to perform  fully its
obligations  thereunder,  the Custodian  shall forthwith upon the Fund's request
terminate such Subcustodian in accordance with the termination  provisions under
the applicable  subcustodian  agreement and, if necessary or desirable,  appoint
another subcustodian in accordance with the provisions of this Section 3. At the
election  of the  Fund,  it shall  have  the  right to  enforce,  to the  extent
permitted by the  subcustodian  agreement and  applicable  law, the  Custodian's
rights against any such  Subcustodian for loss or damage caused the Fund by such
Subcustodian.

The Custodian  will not amend any  subcustodian  agreement or agree to change or
permit any  changes  thereunder  except upon the prior  written  approval of the
Fund.

The Custodian may, at any time in its discretion upon  notification to the Fund,
terminate  any  Subcustodian  of the Fund in  accordance  with  the  termination
provisions  under the  applicable  Subcustodian  Agreement,  and at the  written
request of the Fund, the Custodian will terminate any Subcustodian in accordance
with the termination provisions under the applicable Subcustodian Agreement.

If necessary or desirable,  the Custodian may appoint  another  subcustodian  to
replace a Subcustodian  terminated pursuant to the foregoing  provisions of this
Section  3,  such  appointment  to  be  made  upon  approval  of  the  successor
subcustodian by the Fund's Board of Directors or Trustees in accordance with the
provisions of this Section 3.

In the  event the  Custodian  receives  a claim  from a  Subcustodian  under the
indemnification  provisions of any subcustodian  agreement,  the Custodian shall
promptly give written notice to the Fund of such claim. No more than thirty days
after  written  notice  to the Fund of the  Custodian's  intention  to make such
payment, the Fund will reimburse the Custodian the amount of such payment except
in respect of any negligence or misconduct of the Custodian.

4. Assistance by the Custodian as to Certain  Matters:  The Custodian may assist
generally in the preparation of reports to Fund shareholders and others,  audits
of accounts, and other ministerial matters of like nature.

5.  Powers and Duties of the  Custodian  with  Respect to its Role as  Financial
Agent: The Fund hereby also appoints the Custodian as the Funds financial agent.
With respect to the appointment as financial agent, the Custodian shall have and
perform the following powers and duties:

A.  Records - To  create,  maintain  and retain  such  records  relating  to its
activities  and  obligations  under this  Agreement  as are  required  under the
Investment  Company  Act of  1940  and  the  rules  and  regulations  thereunder
(including  Section 31 thereof and Rules 3la-1 and 3la-2  thereunder)  and under
applicable  Federal and State tax laws. All such records will be the property of
the Fund and in the event of termination of this Agreement shall be delivered to
the successor custodian.

B. Accounts - To keep books of account and render statements,  including interim
monthly and complete quarterly  financial  statements,  or copies thereof,  from
time to time as reasonably requested by proper instructions.

C.  Access  to  Records  - The books and  records  maintained  by the  Custodian
pursuant to Sections 5A and 5B shall at all times during the Custodian's regular
business hours be open to inspection and audit by officers of, attorneys for and
auditors  employed by the Fund and by employees and agents of the Securities and
Exchange  Commission,  provided  that all such  individuals  shall  observe  all

                                       7
<PAGE>

security  requirements of the Custodian  applicable to its own employees  having
access to similar  records  within the Custodian and such  regulations as may be
reasonably imposed by the Custodian.

D.  Disbursements - Upon receipt of proper  instructions,  to pay or cause to be
paid,  insofar as funds are available  for the purpose,  bills,  statements  and
other  obligations of the Fund  (including but not limited to interest  charges,
taxes, management fees,  compensation to Fund officers and employees,  and other
operating expenses of the Fund).

6. Standard of Care and Related Matters:



A. Liability of the Custodian with Respect to Proper  Instructions;  Evidence of
Authority,  Etc.  The  Custodian  shall not be liable  for any  action  taken or
omitted in  reliance  upon proper  instructions  believed by it to be genuine or
upon any other written notice, request, direction,  instruction,  certificate or
other instrument  believed by it to be genuine and signed by the proper party or
parties.

The Secretary or Assistant  Secretary of the Fund shall certify to the Custodian
the names,  signatures and scope of authority of all persons  authorized to give
proper instructions or any other such notice, request,  direction,  instruction,
certificate or instrument on behalf of the Fund, the names and signatures of the
officers of the Fund, the name and address of the Shareholder  Servicing  Agent,
and any  resolutions,  votes,  instructions or directions of the Fund's Board of
Directors  or Trustees or  shareholders.  Such  certificate  may be accepted and
relied  upon by the  Custodian  as  conclusive  evidence  of the facts set forth
therein  and may be  considered  in full  force and  effect  until  receipt of a
similar certificate to the contrary.

So long as and to the extent that it is in the exercise of reasonable  care, the
Custodian shall not be responsible for the title, validity or genuineness of any
property or evidence of title thereto received by it or delivered by it pursuant
to this Agreement.

The Custodian shall be entitled,  at the expense of the Fund, to receive and act
upon advice of (i) counsel  regularly  retained by the  Custodian  in respect of
custodian matters, (ii) counsel for the Fund, or (iii) such other counsel as the
Fund and the Custodian may agree upon, with respect to all matters, and the with
the standard of conduct imposed under such subcustodian  agreement as determined
in accordance  with the law which is adjudicated to govern such agreement and in
accordance  with  any  determination  of any  court  as to the  duties  of  said
Subcustodian  pursuant to said agreement.  The Custodian shall also be liable to
the Fund for its own negligence in transmitting any instructions  received by it
from the Fund and for its own negligence in connection  with the delivery of any
securities or funds held by it to any Subcustodian.

D. Standard of Care;  Liability;  Indemnification  - The Custodian shall be held
only to the  exercise of  reasonable  care and  diligence  in  carrying  out the
provisions of this Agreement,,  provided that the Custodian shall not thereby be
required to take any action which is in contravention of any applicable law. The
Fund agrees to indemnify  and hold  harmless the Custodian and its nominees from
all claims and liabilities (including counsel fees) incurred or assessed against
it or its nominees in connection with the performance of this Agreement,  except
such as may arise from its or its nominee's  breach of the relevant  standard of
conduct  set  forth  in  this   Agreement.   Without   limiting  the   foregoing
indemnification  obligation  of the  Fund,  the Fund  agrees  to  indemnify  the
Custodian and any nominee in whose name  portfolio  securities or other property
of the Fund is  registered  against any  liability the Custodian or such nominee
may incur by reason of taxes  assessed to the Custodian or such nominee or other
costs,  liability or expense incurred by the Custodian or such nominee resulting
directly or indirectly from the fact that portfolio securities or other property
of the Fund is registered in the name of the Custodian or such nominee.

It is also  understood  that the  Custodian  shall  not be  liable  for any loss
involving any  securities,  currencies,  deposits or other property of the Fund,
whether maintained by it, a Subcustodian,  a securities depository,  an agent of
the Custodian or a Subcustodian,  a Securities System, or a Banking Institution,
or for any loss arising from a foreign currency  transaction or contract,  where
the loss  results  from a Sovereign  Risk or where the entity  maintaining  such
securities,  currencies,  deposits or other  property  of the Fund,  whether the
Custodian, a Subcustodian, a securities depository, an agent of the Custodian or
a  Subcustodian,  a Securities  System or a Banking  Institution,  has exercised

                                       8
<PAGE>

reasonable care  maintaining such property or in connection with the transaction
involving  such  property.  A  "Sovereign  Risk"  shall  mean   nationalization,
expropriation,  devaluation,  revaluation,  confiscation, seizure, cancellation,
destruction  or similar  action by any  governmental  authority,  de facto or de
jure;  or  enactment,  promulgation,  imposition  or  enforcement  by  any  such
governmental  authority  of currency  restrictions,  exchange  controls,  taxes,
levies  or  other  charges  affecting  the  Fund's  property;  or  acts  of war,
terrorism,  insurrection  or  revolution;  or any other act or event  beyond the
Custodian's control.

E.  Reimbursement  of  Advances - The  Custodian  shall be  entitled  to receive
reimbursement  from the Fund on demand, in the manner provided in Section 7, for
its cash disbursements, expenses and charges (including the fees and expenses of
any Subcustodian or any Agent) in connection with this Agreement,  but excluding
salaries and usual overhead expenses.

F.  Security  for  Obligations  to  Custodian  - If the Fund shall  require  the
Custodian to advance cash or  securities  for any purpose for the benefit of the
Fund,  including  in  connection  with  foreign  exchange  contracts  or options
(collectively,  an "Advance"),  or if the Custodian or any nominee thereof shall
incur or be  assessed  any  taxes,  charges,  expenses,  assessments,  claims or
liabilities in connection with the performance of this Agreement (collectively a
"Liability"),  except such as may arise from its or such nominee's breach of the
relevant standard of conduct set forth in this Agreement, then in such event any
property  at any time held for the  account  of the Fund by the  Custodian  or a
Subcustodian  shall be security for such  Advance or  Liability  and if the Fund
shall fail to repay or indemnify the Custodian promptly,  the Custodian shall be
entitled  to utilize  available  cash and to  dispose  of the  Fund's  property,
including  securities,  to the  extent  necessary  to  obtain  reimbursement  or
indemnification.

G.  Appointment  of  Agents  - The  Custodian  may at any  time or  times in its
discretion  appoint (and may at any time remove) any other bank or trust company
as its agent (an "Agent") to carry out such of the  provisions of this Agreement
as the  Custodian  may from time to time  direct,  provided,  however,  that the
appointment of such Agent (other than an Agent  appointed  pursuant to the third
paragraph  of  Section  3)  shall  not  relieve  the  Custodian  of  any  of its
responsibilities under this agreement.

H. Powers of Attorney - Upon  request,  the Fund shall  deliver to the Custodian
such proxies,  powers of attorney or other  instruments as may be reasonable and
necessary or desirable in connection  with the  performance  by the Custodian or
any  Subcustodian of their  respective  obligations  under this Agreement or any
applicable subcustodian agreement.

7. Compensation of the Custodian: The Fund shall pay the Custodian a custody fee
based on such fee schedule as may from time to time be agreed upon in writing by
the  Custodian and the Fund.  Such fee,  together with all amounts for which the
Custodian is to be reimbursed in accordance  with Section 6D, shall be billed to
the Fund in such a manner as to permit  payment by a direct cash  payment to the
Custodian.

8. Termination; Successor Custodian: This Agreement shall continue in full force
and  effect  until  terminated  by  either  party by an  instrument  in  writing
delivered or mailed,  postage prepaid,  to the other party,  such termination to
take  effect  not  sooner  than  seventy  five (75) days  after the date of such
delivery or mailing. In the event of termination the Custodian shall be entitled
to receive prior to delivery of securities,  funds and other property held by it
all accrued fees and unreimbursed  expenses tha paymant of which is comtemplated
by Section 6D and 7, upon receipt by the Fund of a statement  setting forth such
fees and expenses.

In the event of the appointment of a successor custodian,  it is agreed that the
funds  and  securities  owned  by the  Fund  and  held by the  Custodian  or any
Subcustodian  shall be delivered to the successor  custodian,  and the Custodian
agrees to cooperate  with the Fund in execution of documents and  performance of
other  actions  necessary  or  desirable in order to  substitute  the  successor
custodian for the Custodian under this Agreement.

9. Amendment:  This Agreement constitutes the entire understanding and agreement
of the parties hereto with respect to the subject matter hereof. No provision of
this  Agreement  may be amended or  terminated  except by a statement in writing
signed by the party against which enforcement of the amendment or termination is
sought.

                                       9
<PAGE>

In connection with the operation of this  Agreement,  the Custodian and the Fund
may agree in writing from time to time on such provisions  interpretative  of or
in addition to the provisions of this Agreement as may in their joint opinion be
consistent  with the  general  tenor of this  Agreement.  No  interpretative  or
additional provisions made as provided in the preceding sentence shall be deemed
to be an amendment of this Agreement.

The section  headings in this  Agreement are for the  convenience of the parties
and in no way alter, amend, limit or restrict the contractual obligations of the
parties set forth in this Agreement.

10. Governing Law: This instrument is executed and delivered in The Commonwealth
of Massachusetts and shall be governed by and construed according to the laws of
said Commonwealth.

11. Notices:  Notices and other writings  delivered or mailed postage prepaid to
the Fund addressed to the Fund at 60 State Street,  Boston,  Massachusetts 02109
or to such other  address as the Fund may have  designated  to the  Custodian in
writing, or to the Custodian at 40 Water Street,  Boston,  Massachusetts  02109,
Attention:  Manager,  Securities  Department,  or to such  other  address as the
Custodian may have  designated  to the Fund in writing,  shall be deemed to have
been properly delivered or given hereunder to the respective addressee.

12. Binding  Effect:  This Agreement  shall be binding on and shall inure to the
benefit  of the Fund and the  Custodian  and  their  respective  successors  and
assigns,  provided that neither party hereto may assign this Agreement or any of
its rights or  obligations  hereunder  without the prior written  consent of the
other party.

13. Counterparts:  This Agreement may be executed in any number of counterparts,
each of which shall be deemed an original. This Agreement shall become effective
when one or more  counterparts  have been  signed and  delivered  by each of the
parties.







IN WITNESS WHEREOF, each of the parties has caused this Agreement to be executed
in its name and behalf on the day and year first above written.





PIONEER MONEY MARKET TRUST           BROWN BROTHERS HARRIMAN & CO.

On Behalf of Pioneer Cash

Reserves Fund









BY _______________________                     PER PRO
 --------------------





                                       10
<PAGE>




                      INVESTMENT COMPANY SERVICE AGREEMENT

                                 March 31, 1995


              Pioneer Money Market  Trust,  a Delaware  business  trust with its
principal  place of business at 60 State  Street,  Boston,  Massachusetts  02109
("Customer") and Pioneering Services  Corporation,  a Massachusetts  corporation
("PSC"), hereby agree as follows:

     1. SERVICES TO BE PROVIDED BY PSC. During the term of this  Agreement,  PSC
will provide to each series of shares of beneficial  interest (the  "Series") of
Customer, which may be established,  from time to time (the "Account"), with the
services described in Exhibits A, B, C and D (collectively, the "Exhibits") that
are attached hereto and incorporated herein by reference.  It is understood that
PSC may subcontract any of such services to one or more firms designated by PSC,
provided that PSC (i) shall be solely  responsible for all compensation  payable
to any such firm and (ii) shall be liable to Customer  for the acts or omissions
of any such firm to the same  extent as PSC  would be  liable to  Customer  with
respect to any such act or omission hereunder.

     2. EFFECTIVE DATE.  This Agreement shall become  effective on the date that
Pioneer Money Market Trust, a Massachusetts  business trust, is reorganized into
Pioneer Money Market Trust, a Delaware business trust (the "Effective Date") and
shall  continue in effect until it is terminated  in accordance  with Section 11
below.

     3.  DELIVERY,  VERIFICATION  AND RECEIPT FOR DATA AND ASSETS.  Prior to the
Effective Date, Customer agrees to deliver to PSC all such  documentation,  data
and  materials  as PSC may  reasonably  prescribe  to enable it to  perform  the
services contemplated by this Agreement. If PSC so requests,  Customer agrees to
confirm the accuracy of any starting  records of Customer's  assets and accounts
produced from PSC's computer or held in other  recording  systems.  In the event
Customer  does not,  prior to the Effective  Date,  comply fully with any of the
foregoing  provisions  of this  Section  3, the date for  commencement  of PSC's
services  hereunder  may be  postponed  by PSC until such  compliance  has taken
place.

              Customer  shall,  from time to time,  while this  Agreement  is in
effect  deliver all such  materials and data as may be necessary or desirable to
enable PSC to perform its  services  hereunder,  including  without  limitation,
those described in Section 12 hereof.

     4. REPORTS AND  MAINTENANCE OF RECORDS BY PSC. PSC will furnish to Customer
and  to  properly  authorized  auditors,   examiners,   distributors,   dealers,
underwriters, salesmen, insurance companies, investors, and others designated by
Customer in writing,  such books,  any and all records and reports at such times
as are prescribed  for each service in the Exhibits  attached  hereto.  Customer
agrees to examine or to ask any other authorized  recipient to examine each such
report or copy  promptly  and will report or cause to be reported  any errors or
discrepancies  therein of which Customer then has any knowledge.  PSC may at its
option at any time, and shall  forthwith upon  Customer's  demand,  turn over to
Customer and cease to retain in PSC's files,  any and all records and  documents
created and  maintained  by PSC pursuant to this  Agreement  which are no longer
needed by PSC in the performance of its services or for its protection.

              If not so turned over to Customer, such documents and reports will
be retained by PSC for six years from the year of creation, during the first two
of which the same will be in readily  accessible  form. At the end of six years,
such  records  and  documents,  will be turned  over to  Customer  by PSC unless
Customer authorizes their destruction.

     5. PSC'S DUTY OF CARE. PSC shall at all time use reasonable care and act in
good faith in performing its duties  hereunder.  PSC shall incur no liability to
Customer in connection with its performance of services  hereunder except to the
extent that it does not comply with the foregoing standards.

              PSC shall at all times  adhere to various  procedures  and systems
consistent  with  industry  standards in order to safeguard  Customer's  checks,
records and other data from loss or damage  attributable  to fire or theft.  PSC
shall maintain insurance adequate to protect against the costs of reconstructing
checks,  records  and other  data in the  event of such  loss and  shall  notify
Customer in the event of a material  adverse change in such insurance  coverage.
In the event of damage or loss occurring to Customer's records or data such that
<PAGE>

PSC is unable  to meet the  terms of this  Agreement,  PSC  shall  transfer  all
records and data to a transfer  agent of  Customer's  choosing  upon  Customer's
written authorization to do so.

              Without limiting the generality of the foregoing, PSC shall not be
liable or responsible for delays or errors  occurring by reason of circumstances
beyond its  control  including  acts of civil,  military  or banking  authority,
national  emergencies,  labor  difficulties,  fire, flood or other catastrophes,
acts of God, insurrection, war, riots, failure of transportation,  communication
or power supply.

     6. CONFIDENTIALITY.  PSC will keep confidential all records and information
provided by Customer or by the shareholders of the Account to PSC, except to the
extent  disclosures  are  required  by  this  Agreement,  are  required  by  the
Customer's Prospectus and Statement of Additional  Information,  or are required
by a valid subpoena or warrant issued by a court of competent jurisdiction or by
a state or federal agency or governmental authority.

     7.  CUSTOMER  INSPECTION.  Upon  reasonable  notice,  in writing  signed by
Customer,  PSC shall make available,  during regular business hours, all records
and other data created and maintained  pursuant to this Agreement for reasonable
audit and  inspection by Customer or  Customer's  agents,  including  reasonable
visitation by Customer or Customer's agent, including inspecting PSC's operation
facilities.  PSC shall not be liable for injury to or responsible in any way for
the safety of any individual  visiting PSC's  facilities  under the authority of
this  section.   Customer  will  keep   confidential  and  will  cause  to  keep
confidential all confidential information obtained by its employees or agents or
any other individual representing Customer while on PSC's premises. Confidential
information shall include (1) any information of whatever nature regarding PSC's
operations, security procedures, and data processing capabilities, (2) financial
information  regarding  PSC,  its  affiliates,  or  subsidiaries,  and  (3)  any
information of whatever kind or  description  regarding any customer of PSC, its
affiliates or subsidiaries.

     8.  RELIANCE BY PSC ON  INSTRUCTIONS  AND ADVICE;  INDEMNITY.  PSC shall be
entitled  to seek  advice of  Customer's  legal  counsel  with  respect to PSC's
responsibilities  and  duties  hereunder  and  shall in no event  be  liable  to
Customer for any action taken pursuant to such advice, except to the extent that
Customer's legal counsel determines in its sole discretion that the rendering of
advice to PSC would result in a conflict of interest.

              Whenever PSC is  authorized to take action  hereunder  pursuant to
proper  instructions  from  Customer,  PSC  shall be  entitled  to rely upon any
certificate, letter or other instrument or telephone call reasonably believed by
PSC to be  genuine  and to have been  properly  made or signed by an  officer or
other  authorized  agent of  Customer,  and  shall be  entitled  to  receive  as
conclusive  proof  of any  fact  or  matter  required  to be  ascertained  by it
hereunder a  certificate  signed by an officer of  Customer or any other  person
authorized by Customer's Board of Trustees.

              Subject  to  the  provisions  of  Section  13 of  this  Agreement,
Customer  agrees to indemnify and hold PSC, its  employees,  agents and nominees
harmless from any and all claims, demands, actions and suits, whether groundless
or otherwise, and from and against any and all judgments,  liabilities,  losses,
damages,  costs,  charges,  counsel fees and other  expenses of every nature and
character  arising out of or in any way relating to PSC's  action or  non-action
upon information, instructions or requests given or made to PSC by Customer with
respect to the Account.

              Notwithstanding  the  above,  whenever  Customer  may be  asked to
indemnify or hold PSC harmless, Customer shall be advised of all pertinent facts
arising from the situation in question.  Additionally,  PSC will use  reasonable
care to identify and notify  Customer  promptly  concerning any situation  which
presents, actually or potentially, a claim for indemnification against Customer.
Customer  shall have the option to defend PSC against any claim for which PSC is
entitled to  indemnification  from Customer  under the terms hereof,  and in the
event Customer so elects, it will notify PSC and, thereupon, Customer shall take
over  complete  defense of the claim and PSC shall  sustain no further  legal or
other expenses in such a situation for which  indemnification shall be sought or
entitled.  PSC may in no event  confess any claim or make any  compromise in any
case in which  Customer  will be asked to indemnify  PSC except with  Customer's
prior written consent.

     9.  MAINTENANCE  OF  DEPOSIT  ACCOUNTS.  PSC  shall  maintain  on behalf of
Customer such deposit  accounts as are necessary or desirable  from time to time
to enable PSC to carry out the provisions of this Agreement.

                                       2
<PAGE>

     10. COMPENSATION AND REIMBURSEMENT TO PSC. For the services rendered by PSC
under this  Agreement,  Customer agrees to pay an annual fee of $ per account to
PSC, such fee to be payable in equal monthly installments. In addition, Customer
shall reimburse PSC monthly for out-of-pocket  expenses such as postage,  forms,
envelopes,  checks,  "outside"  mailings,  telephone  line  and  other  charges,
mailgrams,  mail insurance on  certificates  and data  processing  file recovery
insurance.

     11.  TERMINATION.  Either PSC or Customer  may at any time  terminate  this
Agreement by giving 90 days' prior written notice to the other.

              After  the  date  of  termination,  for so  long  as  PSC in  fact
continues  to  perform  any  one or more of the  services  contemplated  by this
Agreement or any exhibit  hereto,  the provisions of this  Agreement,  including
without  limitation  the  provisions of Section 8 dealing with  indemnification,
shall where applicable continue in full force and effect.

     12.  REQUIRED  DOCUMENTS.  Customer  agrees to  furnish to PSC prior to the
Effective Date the following (to the extent not previously provided):

     A.   Two (2) copies of the Agreement and  Declaration of Trust of Customer,
          and  of  any  amendments  thereto,  certified  by an  officer  of  the
          Customer.  

     B.   Two (2) copies of the following documents,  currently certified by the
          Secretary of Customer:

          a.   Customer's By-laws and any amendment thereto.

          b.   Certified  copies of resolutions of Customer's  Board of Trustees
               covering the following matters.

               (1)  Approval of this Agreement.

               (2)  Authorization of specified officers of Customers to instruct
                    PSC hereunder (if different  from other officers of Customer
                    previously  specified  by  Customer  as  to  other  Customer
                    accounts being serviced by PSC).

     C.   List of all officers of Customer together with specimen  signatures of
          those  officers who are authorized to sign share  certificates  and to
          instruct PSC in all other matters.

     D.   Two (2) copies of the following:

               a.   Prospectus

               b.   Statement of Additional Information

               c.   Management Agreement

               d.   Registration Statement

     E.   Opinion of counsel  for  Customer as to the due  authorization  by and
          binding effect of this Agreement on Customer, the applicability of the
          Securities Act of 1933, as amended,  and the Investment Company Act of
          1940, as amended,  and the approval by such public  authorities as may
          be prerequisite to lawful sale and deliver in the various states.

     F.   Amendments  to, and changes in, any of the  foregoing  forthwith  upon
          such amendments and changes being available, but in no case later than
          the effective date.

     13.  INDEMNIFICATION.  The parties to this Agreement  acknowledge and agree
that all liabilities arising,  directly or indirectly,  under this Agreement, of
any and every  nature  whatsoever,  including  without  limitation,  liabilities
arising in  connection  with any agreement of Customer or its Trustees set forth
herein to indemnify any party to this  Agreement or any other  person,  shall be
satisfied  out of the assets of the Account  first and then of Customer and that
no Trustee, officer or holder of shares of beneficial interest of Customer shall
be personally liable for any of the foregoing liabilities.  Customer's Agreement
and  Declaration  of  Trust,  dated  March 7,  1995,  describes  in  detail  the
respective  responsibilities  and  limitations  on  liability  of the  Trustees,
officers, and holders of shares of beneficial interest of Customer.

                                       3
<PAGE>

     14. MISCELLANEOUS.  In connection with the operation of this Agreement, PSC
and Customer may agree from time to time on such  provisions  interpretive of or
in addition to the provisions of this Agreement as may in their joint opinion be
consistent  with the general tenor of this Agreement.  Any such  interpretive or
additional  provisions are to be signed by both parties and annexed hereto,  but
no such  provision  shall  contravene  any  applicable  Federal and state law or
regulation,  and no such  provision  shall be deemed to be an  amendment of this
Agreement.

              This Agreement  shall be construed in accordance  with the laws of
The Commonwealth of Massachusetts.

              IN WITNESS WHEREOF, Customer and PSC have caused this Agreement to
be executed in their  respective names by their  respective  officers  thereunto
duly authorized as of the date first written above.

ATTEST:                                PIONEERING SERVICES CORPORATION


/s/ Joseph P. Barri                    /s/ William H. Smith, Jr.

--------------------------             -----------------------------
Joseph P. Barri, Clerk                  William H. Smith, Jr.
                                        President


                                       PIONEER MONEY MARKET TRUST


/s/ Joseph P. Barri                    /s/ John F. Cogan, Jr.
--------------------------              -----------------------------
Joseph P. Barri, Secretary              John F. Cogan, Jr.
                                        President
<PAGE>


              EXHIBIT A - TO INVESTMENT COMPANY SERVICE AGREEMENT



Shareholder Account Service:

As Servicing  Agent for fund accounts and in accordance  with the  provisions of
the standard fund application and Customer's prospectus, PSC will:

     1.   Open, maintain and close accounts.

     2.   Purchase shares for the shareholder.

     3.   Out of the money  received in payment for sales of  Customer's  shares
          pay to the Customer's  custodian the net asset value per share and pay
          to the  underwriter and to the dealer their  commission,  if any, on a
          bimonthly basis.


     4.   Redeem shares by systematic withdrawal orders. (See Exhibit B)

     5.   Issue share certificates, upon instruction, resulting from withdrawals
          from  share  accounts  (It  is  the  policy  of  PSC  to  issue  share
          certificates only upon request of the  shareholder).  Maintain records
          showing name, address, certificate numbers and number of shares.

     6.   Deposit  certificates to shareholder accounts when furnished with such
          documents as PSC deems necessary to authorize the deposit.

     7.   Reinvest or disburse dividends and other  distributions upon direction
          of shareholder.

     8.   Establish the proper registration of ownership of shares.

     9.   Pass upon the adequacy of documents  submitted by a shareholder or his
          legal  representative  to  substantiate  the  transfer of ownership of
          shares from the registered owner to transferees.

     10.  Make  transfers  from time to time upon the books of the  Customer  in
          accordance with properly executed transfer  instructions  furnished to
          PSC.

     11.  Upon receiving appropriate detailed instructions and written materials
          prepared by Customer and,  where  applicable,  proxy proofs checked by
          Customer,  mail shareholder reports,  proxies and related materials of
          suitable design for automatic enclosing, receive and tabulate executed
          proxies,  and  furnish an annual  meeting  list of  shareholders  when
          required.

     12.  Respond to shareholder inquiries in a timely manner.

     13.  Maintain dealer and salesperson records.

     14.  Maintain  and  furnish to Customer  such  shareholder  information  as
          Customer  may  reasonably  request  for the purpose of  compliance  by
          Customer  with  the  applicable  tax  and  securities  law of  various
          jurisdictions.

     15.  Mail  confirmations  of  transactions  to  shareholders  in  a  timely
          fashion.

     16.  Provide Customer with such  information  regarding  correspondence  as
          well as enable Customer to comply with related N-SAR requirements.

     17.  Maintain continuous proof of the outstanding shares of Customer.

     18.  Solicit taxpayer identification numbers.

     19.  Provide data to enable Customer to file abandoned property reports for
          those  accounts that have been  indicated by the Post Office to be not
          at the address of record with no forwarding address.

     20.  Maintain bank accounts and reconcile same on a monthly basis.
<PAGE>

     21.  Provide  management  information  reports  on  a  quarterly  basis  to
          Customer's Board of Trustees/Directors  outlining the level of service
          provided.

     22.  Provide  sale/statistical  reporting  for purposes of  providing  fund
          management with information to maximizing the return to shareholders.

<PAGE>



              EXHIBIT B - TO INVESTMENT COMPANY SERVICE AGREEMENT



Redemption Service:

In accordance  with the  provisions of the Customer's  Prospectus,  as servicing
agent for the redemptions, PSC will:

     1.   Where  applicable,  establish  accounts  payable based on  information
          furnished  to PSC  on  behalf  of  Customer  (i.e.,  copies  of  trade
          confirmations and other documents deemed necessary or desirable by PSC
          on the first business day following the trade date).

     2.   Receive for redemption either:

          a.   Share certificates, supported by appropriate documentation; or

          b.   Written or telephone  authorization  (where no share certificates
               are issued).

     3.   Verify there are  sufficient  available  shares in an account to cover
          redemption requests.

     4.   Transfer the redeemed or  repurchased  shares to  Customer's  treasury
          share account or, if applicable, cancel such shares for retirement.

     5.   Pay the applicable  redemption or repurchase  price to the shareholder
          in accordance with  Customer's  Prospectus and Declaration of Trust on
          or  before  the  seventh   calendar  day  succeeding  any  receipt  of
          certificates  or requests for redemption or repurchase in "good order"
          as defined in the Prospectus.

     6.   Notify Customer and the underwriter on behalf of Customer of the total
          number of shares  presented  and  covered  by such  requests  within a
          reasonable period of time following receipt.

     7.   Promptly notify the shareholder if any such certificate or request for
          redemption or  repurchase is not in "good order"  together with notice
          of the  documents  required to comply  with the good order  standards.
          Upon  receipt  of  the  necessary  documents  PSC  shall  effect  such
          redemption  at the net asset value  applicable at the date and time of
          receipt of such documents.

     8.   Produce periodic reports of unsettled items, if any.

     9.   Adjust   unsettled   items,   if  any,   relative  to  dividends   and
          distributions.

     10.  Report to  Customer  any late  redemptions  which must be  included in
          Customer's N-SAR.


<PAGE>

              EXHIBIT C - TO INVESTMENT COMPANY SERVICE AGREEMENT



Exchange Service:

     1.   Receive and  process  exchanges  in  accordance  with a duly  executed
          exchange  authorization.  PSC will redeem  existing shares and use the
          proceeds to purchase new shares. Shares of Customer purchased directly
          or acquired  through  reinvestment  of dividends on such shares may be
          exchanged  for shares of other  Pioneer  funds (which funds have sales
          charges) only by payment of the  applicable  sales charge,  if any, as
          described in  Customer's  Prospectus.  Shares of Customer  acquired by
          exchange and through  reinvestment  of dividends on such shares may be
          re-exchanged  to another  Pioneer fund at their  respective  net asset
          values.

     2.   Make authorized deductions of fees, if any.

     3.   Register  new  shares  identically  with the  shares  surrendered  for
          exchange.  Mail new shares certificates,  if requested,  or an account
          statement  confirming  the exchange by first class mail to the address
          of record.

     4.   Maintain  a record of  unprocessed  exchanges  and  produce a periodic
          report.


<PAGE>

              EXHIBIT D - TO INVESTMENT COMPANY SERVICE AGREEMENT



Income Accrual and Disbursing Service:

     1.   Distribute income dividends and/or capital gain distributions,  either
          through  reinvestment  or in  cash,  in  accordance  with  shareholder
          instructions.

     2.   On the mailing date,  Customer  shall make  available to PSC collected
          funds to make such distribution.

     3.   Adjust unsettled items relative to dividends and distribution.

     4.   Reconcile dividends and/or distributions with Customer.

     5.   Prepare  and file  annual  Federal  and State  information  returns of
          distributions  and, in the case of Federal  returns,  mail information
          copies  to  shareholders  and  report  and pay  Federal  income  taxes
          withheld from distributions made to non-resident aliens.
<PAGE>






                                 March 23, 1995






Pioneer Money Market Trust
60 State Street
Boston, Massachusetts  02109

                  Re:      Pioneer Money Market Trust

Ladies and Gentlemen:

                  We have acted as  special  Delaware  counsel to Pioneer  Money
Market Trust,  a Delaware  business  trust (the  "Trust"),  in  connection  with
certain  matters  relating  to the  formation  of the Trust and the  issuance of
Shares of beneficial  interest in the Trust.  Capitalized  terms used herein and
not  otherwise  herein  defined  are  used  as  defined  in  the  Agreement  and
Declaration  of  Trust  of  the  Trust  dated  March  7,  1995  (the  "Governing
Instrument").

                  In rendering  this  opinion,  we have  examined  copies of the
following  documents,  each in the form provided to us: the Certificate of Trust
of the Trust as filed in the  Office of the  Secretary  of State of the State of
Delaware  (the  "Recording  Office") on March 7, 1995 (the  "Certificate");  the
Governing  Instrument;  the  By-laws of the Trust;  certain  resolutions  of the
Trustees  of  the  Trust;  an  Adoption  Of And  Amendment  To  Notification  Of
Registration  to be filed with the Securities  and Exchange  Commission on March
28, 1995 by which the Trust will adopt the  Notification of  Registration  Filed
Pursuant to Section 8(a) of the  Investment  Company Act of 1940 on Form N-8A of
Pioneer Money Market  Trust,  a  Massachusetts  business  trust;  Post-Effective
Amendment  No. 12 to the  Registration  Statement on Form N-1A of Pioneer  Money
Market Trust, a Massachusetts business trust, by which the Trust will adopt such
Registration  Statement to be filed with the Securities and Exchange  Commission
on March 28, 1995 (the "Post-Effective  Amendment"); and a certification of good
standing of the Trust obtained as of a recent date from the Recording Office. In
such  examinations,  we have  assumed the  genuineness  of all  signatures,  the
conformity to original  documents of all documents  submitted to us as copies or
drafts of documents to be executed, and the legal capacity of natural persons to
complete the execution of documents.  We have further assumed for the purpose of
this opinion: (i) the due

<PAGE>


Pioneer Money Market Trust
March 23, 1995
Page 2




authorization,  execution  and delivery by, or on behalf of, each of the parties
thereto of the above-referenced  instruments,  certificates and other documents,
and of all documents  contemplated by the Governing Instrument,  the By-laws and
applicable  resolutions of the Trustees to be executed by investors  desiring to
become  Shareholders;  (ii) the payment of  consideration  for  Shares,  and the
application of such consideration,  as provided in the Governing Instrument, and
compliance with the other terms,  conditions and  restrictions  set forth in the
Governing Instrument and all applicable resolutions of the Trustees of the Trust
in connection with the issuance of Shares (including,  without  limitation,  the
taking of all appropriate  action by the Trustees to designate  Series of Shares
and the rights and  preferences  attributable  thereto  as  contemplated  by the
Governing  Instrument);  (iii)  that  appropriate  notation  of  the  names  and
addresses  of, the  number of Shares  held by,  and the  consideration  paid by,
Shareholders will be maintained in the appropriate registers and other books and
records of the Trust in connection with the issuance,  redemption or transfer of
Shares;  (iv)  that no  event  has  occurred  subsequent  to the  filing  of the
Certificate that would cause a termination or  reorganization of the Trust under
Section 4 or Section 5 of Article IX of the Governing  Instrument;  (v) that the
activities of the Trust have been and will be conducted in  accordance  with the
terms of the Governing  Instrument and the Delaware  Business Trust Act, 12 Del.
C. ss.ss. 3801 et seq. (the "Delaware Act"); and (vi) that each of the documents
examined  by  us is in  full  force  and  effect  and  has  not  been  modified,
supplemented or otherwise  amended.  No opinion is expressed herein with respect
to the requirements of, or compliance with,  federal or state securities or blue
sky laws.  Further,  we express no opinion on the sufficiency or accuracy of any
registration or offering  documentation  relating to the Trust or the Shares. As
to any facts material to our opinion,  other than those assumed,  we have relied
without independent  investigation on the above-referenced  documents and on the
accuracy, as of the date hereof, of the matters therein contained.

                  Based on and  subject  to the  foregoing,  and  limited in all
respects to matters of Delaware law, it is our opinion that:

                   1.  The  Trust  is a  duly  organized  and  validly  existing
business trust in good standing under the laws of the State of Delaware.

                   2. The Shares of each of the  following  Series of the Trust,
when  issued to  Shareholders  of such  Series  in  accordance  with the  terms,
conditions,  requirements and procedures set forth in the Governing  Instrument,
will  constitute  legally  issued,  fully  paid  and  non-assessable  Shares  of
beneficial interest in the Trust:

<PAGE>


Pioneer Money Market Trust
March 23, 1995
Page 3


Pioneer Cash Reserves  Fund;  Pioneer U.S.  Government  Money Fund;  and Pioneer
Tax-Free Money Fund.

                  3.  Under  the  Delaware  Act and the  terms of the  Governing
Instrument, each Shareholder of the Trust, in such capacity, will be entitled to
the same  limitation of personal  liability as that extended to  stockholders of
private  corporations for profit organized under the general  corporation law of
the State of  Delaware;  provided,  however,  that we express  no  opinion  with
respect to the  liability of any  Shareholder  who is, was or may become a named
Trustee of the Trust.  Neither the  existence  nor exercise of the voting rights
granted to Shareholders under the Governing  Instrument will, of itself, cause a
Shareholder  to be  deemed a  trustee  of the  Trust  under  the  Delaware  Act.
Notwithstanding  the foregoing or the opinion expressed in paragraph 2 above, we
note that,  pursuant to Section 2 of Article VIII of the  Governing  Instrument,
the  Trustees  have the  power  to  cause  Shareholders,  or  Shareholders  of a
particular  Series,  to pay certain  custodian,  transfer,  servicing or similar
agent charges by setting off the same against  declared but unpaid  dividends or
by reducing Share ownership (or by both means).

                  We  understand  that the Trust is  currently in the process of
registering or qualifying Shares in various states, and we hereby consent to the
filing of a copy of this  opinion  with the  securities  administrators  of such
states  and  with  the  Securities  and  Exchange  Commission  as  part  of  the
Post-Effective  Amendment.  In giving this consent, we do not thereby admit that
we come within the category of persons whose consent is required under Section 7
of the Securities Act of 1933, as amended,  or the rules and  regulations of the
Securities  and  Exchange  Commission  thereunder.  Except as  provided  in this
paragraph,  the opinion set forth above is  expressed  solely for the benefit of
the  addressee  hereof and may not be relied upon by, or filed  with,  any other
person or entity for any purpose without our prior written consent.

                                      Sincerely,

                                      MORRIS, NICHOLS, ARSHT & TUNNELL




                   CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS



As independent  public  accountants,  we hereby consent to the use of our report
dated February 3, 1995 (and to all references to our firm) included in or made a
part of the  Pioneer  Money  Market  Trust  Post-Effective  Amendment  No. 11 to
Registration  Statement File No.  33-13179 and Amendment No. 12 to  Registration
Statement File No. 811-5099.




                                     ARTHUR ANDERSEN LLP




Boston, Massachusetts
March 27, 1995




         

FELLOW SHAREOWNERS, 

We are pleased to present this annual report covering the progress and 
performance of Pioneer's three money market funds: Pioneer Cash Reserves 
Fund, Pioneer U.S. Government Money Fund and Pioneer Tax-Free Money Fund. 
The 12 months ended December 31, 1994 proved to be a positive period for 
shareowners in any one of Pioneer's money funds. Two events deserve par- 
ticular notice. First, we would like to welcome former Pioneer Money Mar- 
ket Account shareowners who, on June 23, 1994, voted in favor of the 
Fund's merger with Pioneer Cash Reserves Fund. Plus, as you've seen, money 
market fund yields in 1994 were higher than they've been in some time -- 
again making money funds a good "parking place" for cash, especially for 
investors looking to avoid the volatility that occurred in the stock and 
bond markets in 1994. 

                   RISING INTEREST RATES, RISING YIELDS 

Over the five years prior to 1994, short-term interest rates had declined 
to historic lows as the Federal Reserve Board (the Fed) worked to encour- 
age economic spending and growth. But in October 1993, rates bottomed out 
when it appeared the economy was growing too fast. Gross Domestic Product 
(GDP), expected to be 3-4% for the last quarter of 1993, was revised in 
the first quarter of 1994 to 7%. This sudden rise in GDP prodded the Fed 
to raise interest rates in hopes of slowing spending and economic growth, 
and to avoid inflation. 

In 1994, the Fed raised short-term interest rates six times. The first 
hike came on February 4, when the federal funds rate (the interest rate 
that banks charge each other for overnight loans) jumped from 3.00% to 
3.25%. The last increase of the year came on November 15, 1994, and moved 
short- term interest rates to a three-year high of 5.5%. Since money fund 
yields tend to mirror the rise and fall of short-term interest rates, the 
Fed's rate increases sent the Funds' yields climbing. 

Looking into 1995, recent data indicate that continued economic growth has 
not yet resulted in inflation. If growth continues, the Fed remains will- 
ing to take action by raising short-term interest rates. This should be 
good news for money fund investors. 

                          HOW YOUR FUND PERFORMED 

We are pleased to present the following results for Pioneer Cash Reserves 
Fund, Pioneer U.S. Government Money Fund and Pioneer Tax-Free Money Fund. 
In 1994, all three funds provided a steady stream of income while adhering 
to their objective of maintaining a $1 share price. Preserving capital and 
providing high current income by investing in high-quality securities re- 
mains each Fund's objective as we move into 1995. 

PIONEER CASH RESERVES FUND invests in high- quality money market instru- 
ments issued by the U.S. government, corporations and banks to provide 
shareowners with high current income and to preserve capital. 

As of December 31, 1994: 

* Shareowners had received total distributions of $0.035 per share over 
  the past 12 months. 

* Net 7-day annualized yield was 4.93%, compared to 2.51% one year 
  earlier. 

* The 7-day effective yield (taking into account the compounding of daily 
  dividends) was 5.05%, up from 2.54% on December 31, 1993. 

* 91% of the Fund's portfolio was invested in commercial paper, with the 
  remaining 9% in U.S. government agency obligations. 

* Average portfolio maturity was 27 days, versus 43 days on December 31, 
  1993. 

We shortened the Fund's average portfolio maturity to take advantage of 
rising interest rates -- a strategy we will continue as long as we see 
short-term interest rates rising. Again this year, the Fund bought only 
issues given the highest rating (A1/P1) by Standard & Poor's and Moody's 
rating organizations. 

PIONEER U.S. GOVERNMENT MONEY FUND invests in U.S. government and agency 
obligations to provide high current income and to preserve capital. Gener- 
ally, the Fund's income is free from state and local taxes. 

As of December 31, 1994: 

* Shareowners had received total distributions of $0.036 per share over 
  the past 12 months. 

* Net 7-day annualized yield was 5.01%, compared to 2.64% one year 
  earlier. 

* The 7-day effective yield (taking into account the compounding of daily 
  dividends) was 5.13%, up from 2.68% on December 31, 1993. 

* 100% of the Fund's portfolio was invested in U.S. government agency ob- 
  ligations. 

* Average portfolio maturity was 32 days, versus 46 days on December 31, 
  1993. 

To benefit from rising interest rates, we shortened the Fund's average 
portfolio maturity. As usual, 
the Fund invested in only the highest quality issues -- those of the U.S. 
Treasury and government agencies. 

PIONEER TAX-FREE MONEY FUND invests in short- term municipal securities to 
provide income free from federal income taxes and to preserve capital. 

As of December 31, 1994: 

* Shareowners had received total distributions of $0.024 per share over 
  the past 12 months. 

* Net 7-day annualized yield was 4.66%, compared to 2.64% one year ear- 
  lier. 

* The 7-day effective yield (taking into account the compounding of daily 
  dividends) was 4.77%, up from 2.67% on December 31, 1993. 

* 97% of the Fund's portfolio was invested in a variety of variable rate 
  securities, with 3% in tax-free commercial paper. 

* Average portfolio maturity was 4 days, versus 12 days on December 31, 
  1993. 

Your Fund's 4.77% 7-day effective yield looks even more rewarding when you 
look at its taxable equivalents. 

<TABLE>
<CAPTION>
         FEDERAL                                                 TAXABLE 
       TAX BRACKET                                          EQUIVALENT YIELD 
       <S>                                                  <C>
          39.6%                                                   7.83% 
            36%                                                   7.39% 
            31%                                                   6.86% 
            28%                                                   6.57% 
</TABLE>

Finally, throughout the year, the Fund held to its strategy of investing 
in very short-term, high quality securities. 

The following pages present audited financial statements and schedules of 
portfolio holdings at the period's end. If you have any questions about 
your investment in Pioneer Cash Reserves Fund, Pioneer U.S. Government 
Money Fund or Pioneer Tax-Free Money Fund, please consult your investment 
representative, or call Pioneer at 1-800-225- 6292. 

Respectfully submitted, 

John F. Cogan, Jr. 

John F. Cogan, Jr. 
Chairman and President, 
Pioneer Money Market Trust 

February 15, 1995 

The Funds are currently waiving all or a portion of their management fees 
and/or expenses. Otherwise 7-day annualized yields would have been: 4.64% 
for Pioneer Cash Reserves Fund, 4.24% for Pioneer U.S. Government Money 
Fund and 1.56% for Pioneer Tax-Free Money Fund. 

Past performance does not guarantee future results. Investment returns 
will fluctuate, and there can be no guarantee that the Funds will be able 
to maintain a stable net asset value of $1.00 per share. An investment in 
the Funds is neither insured nor guaranteed by the U.S. government. 

SCHEDULE OF INVESTMENTS -- PIONEER CASH RESERVES FUND -- DECEMBER 31, 1994 

<TABLE>
<CAPTION>
 PRINCIPAL 
  AMOUNT                             INVESTMENTS IN SECURITIES                              VALUE 
<S>          <C>                                                                         <C>
             COMMERCIAL PAPER -- 90.9% 
$2,451,000   American Express Credit Corp., 5.80%, due 01/05/95                          $  2,450,210 
 2,400,000   American General Finance Corp, 5.80%, due 02/22/95                             2,380,667 
 6,420,000   American Telephone and Telegraph Co., 5.22%, due 01/11/95                      6,412,553 
 3,500,000   Ameritech Corp., 5.50%, due 02/15/95                                           3,476,798 
 5,000,000   Amoco Credit Corp., 5.83%, due 01/25/95                                        4,982,186 
 2,500,000   Amoco Credit Corp,, 5.95%, due 01/06/95                                        2,498,761 
 3,375,000   Associates Corp. of North America, 5.70%, due 01/12/95                         3,370,191 
 5,000,000   Bankers Trust New York Corp., 5.58%, due 02/06/95                              4,973,650 
 5,040,000   Bell Atlantic, 5.87%, due 01/27/95                                             5,020,277 
 3,000,000   Bell South, 5.54%, due 02/10/95                                                2,982,457 
 1,800,000   Beneficial Corp., 5.75%, due 02/14/95                                          1,787,925 
 6,335,000   Commercial Credit Corp., 5.43%, due 01/23/95                                   6,335,000 
 4,760,000   Coca-Cola Co., 5.67%, due 01/13/95                                             4,752,503 
 5,500,000   CoreStates Financial Corp., 5.75%, due 02/16/95                                5,461,347 
 6,971,000   Dupont (E.I.) De Nemours & Co., 5.77%, due 01/26/95                            6,945,302 
 5,000,000   Eli Lilly & Co., 5.75%, due 01/20/95                                           4,986,424 
 2,046,000   Exxon Asset Management Co., 5.82%, due 01/05/95                                2,045,339 
 3,670,000   Florida Power Corp., 5.63%, due 01/13/95                                       3,664,261 
 2,100,000   Ford Motor Credit Co., 5.45%, due 01/10/95                                     2,097,775 
 1,380,000   Ford Motor Credit Co., 5.90%, due 01/05/95                                     1,379,548 
 6,520,000   General Electric Capital Corp., 5.48%, due 01/24/95                            6,520,000 
 5,000,000   Golden Peanut Co., 5.25%, due 01/17/95                                         4,989,791 
 5,000,000   Household Finance Corp., 6.125%, due 03/02/95                                  4,950,660 
 5,350,000   John Deere Capital, 5.80%, due 02/21/95                                        5,307,765 
 2,000,000   NBD Bancorp Inc., 5.34%, due 01/23/95                                          1,994,067 
 3,000,000   Paccar Financial Corp., 5.60%, due 02/09/95                                    2,982,733 
 5,000,000   Penney (J.C.) Funding Corp., 5.47%, due 01/04/95                               4,999,240 
 6,000,000   Pepsico Inc., 5.60%, due 02/08/95                                              5,966,400 
 3,000,000   Pitney Bowes Credit Corp., 5.58%, due 01/18/95                                 2,993,025 
 3,000,000   Pitney Bowes Credit Corp., 5.85%, due 01/31/95                                 2,986,350 
 5,787,000   Prudential, 5.45%, due 01/31/95                                                5,762,470 
 5,000,000   Raytheon Co., 5.92%, due 01/06/95                                              4,997,533 
 7,600,000   Republic New York Bank, 5.61%, due 01/24/95                                    7,575,129 
 5,000,000   Safeco Credit Co., 5.47%, due 01/09/95                                         4,995,442 
 2,000,000   Southwestern Bell Capital Corp., 5.53%, due 01/06/95                           1,999,078 
 3,400,000   U.S. West Communications, Inc., 5.80%, due 02/03/95                            3,383,019 
 4,000,000   Xerox Corp., 5.84%, due 01/30/95                                               3,982,480 
 3,000,000   Xerox Corp., 5.90%, due 01/20/95                                               2,991,642 
                                                                                         $ 157,379,998 
             U.S. GOVERNMENT AGENCIES -- 8.6% 
 5,000,000   Federal Farm Credit Bank, 5.0%, due 01/03/95                                $  5,000,000 
 5,000,000   Federal Farm Credit Bank, 5.38%, due 02/01/95                                  5,000,000 
 5,000,000   Federal Farm Credit Bank, 5.66%, due 03/01/95                                  5,000,000 
                                                                                         $ 15,000,000 
                TOTAL INVESTMENTS, AT VALUE -- 99.5%                                     $172,379,998 
                ALL OTHER ASSETS, LESS LIABILITIES -- 0.5%                                    815,206 
                NET ASSETS -- 100%                                                       $173,195,204 
</TABLE>

The accompanying notes are an integral part of these financial statements. 

PIONEER CASH RESERVES FUND 
BALANCE SHEET -- DECEMBER 31, 1994 

<TABLE>
<S>                                                                         <C>
ASSETS: 
   Investments, at value based on amortized cost (see Schedule of
     Investments and Note 1)                                                $172,379,998 
   Receivables -- 
     Trust shares sold                                                         1,479,596 
     Interest                                                                    273,955 
   Other                                                                          30,350 
       Total assets                                                         $174,163,899 
LIABILITIES: 
   Payables -- 
     Trust shares repurchased                                               $    714,938 
     Dividends                                                                    21,977 
     Due to Bank                                                                  67,308 
   Accrued expenses -- 
     Management fees (Note 3)                                                     12,611 
     Other (Notes 3, 4 and 5)                                                    151,861 
       Total liabilities                                                    $    968,695 
NET ASSETS: 
   Trust shares (unlimited number of shares authorized), amount paid in 
     on 173,470,628 shares outstanding                                      $173,470,628 
   Accumulated realized loss on investments (Note 2)                            (275,424) 
       Total net assets (offering and redemption price of $1.00 per share)  $173,195,204 
</TABLE>

PIONEER CASH RESERVES FUND 
STATEMENT OF OPERATIONS -- FOR THE YEAR ENDED DECEMBER 31, 1994 

<TABLE>
<S>                                                                         <C>
INVESTMENT INCOME (NOTE 1): 
   Interest income                                                          $5,315,660 
EXPENSES: 
   Management fees (Note 3)                                                 $  464,522 
   Transfer fees (Note 4)                                                      320,496 
   Printing                                                                      5,276 
   Professional fees                                                            27,777 
   Fees and expenses of nonaffiliated trustees                                   6,473 
   Accounting expenses                                                          41,481 
   Custodian fees                                                               27,365 
   Registration fees                                                            39,080 
   Distribution fees (Note 5)                                                  165,050 
   Miscellaneous expenses                                                       19,501 
     Total expenses                                                         $1,117,021 
   Less management fees waived by Pioneering Management Corporation (Note 
     3)                                                                        250,479 
     Net expenses                                                           $  866,542 
       Net investment income                                                $4,449,118 
     Net realized loss on investments (Note 2)                                (275,424) 
       Net increase in net assets resulting from operations                 $4,173,694 
</TABLE>

The accompanying notes are an integral part of these financial statements. 

PIONEER CASH RESERVES FUND 
STATEMENTS OF CHANGES IN NET ASSETS -- 
FOR THE YEARS ENDED DECEMBER 31, 1994 AND 1993 

<TABLE>
<CAPTION>
                                                                              1994            1993 
<S>                                                                       <C>             <C>
FROM OPERATIONS: 
   Net investment income                                                  $   4,449,118   $   1,406,533 
   Net realized loss on investments                                            (275,424)       -- 
   Net increase in net assets resulting from operations                   $   4,173,694   $   1,406,533 
DISTRIBUTIONS TO SHAREHOLDERS FROM: 
   Net investment income ($0.034 and $0.024, respectively)                $  (4,449,118)  $  (1,406,533) 
FROM TRUST SHARE TRANSACTIONS (AT $1.00 PER SHARE): 
   Net proceeds from sale of shares                                       $ 510,388,826   $ 139,187,356 
   Net asset value of shares issued to shareholders in reinvestment of 
     dividends                                                                4,140,612       1,300,695 
   Cost of shares repurchased                                              (405,899,999)   (134,744,158) 
     Net increase in net assets resulting from trust share transac- 
       tions                                                              $ 108,629,439   $   5,743,893 
       Net increase in net assets                                         $ 108,354,015   $   5,743,893 
NET ASSETS: 
   Beginning of year                                                         64,841,189      59,097,296 
   End of year                                                            $ 173,195,204   $  64,841,189 
</TABLE>

PIONEER CASH RESERVES FUND 
FINANCIAL HIGHLIGHTS 
SELECTED DATA FOR A SHARE OUTSTANDING FOR THE PERIODS PRESENTED 

<TABLE>
<CAPTION>
                                                 FOR THE YEAR ENDED DECEMBER 31, 
                                                                                                        JUNE 22, 
                                                                                                         1987 TO 
                                                                                                      DECEMBER 31, 
                               1994       1993      1992      1991       1990      1989      1988        1987 
<S>                           <C>        <C>       <C>       <C>       <C>        <C>       <C>       <C>
Net asset value, beginning 
  of period                   $    1.00  $   1.00  $   1.00  $   1.00  $    1.00  $   1.00  $   1.00     $   1.00 
Income from investment 
  operations: 
   Net investment income      $   0.03   $  0.02   $  0.03   $  0.05   $   0.07   $  0.08   $  0.07      $  0.03 
Distributions to share- 
  holders from: 
   Net investment income         (0.03)    (0.02)    (0.03)    (0.05)     (0.07)    (0.08)    (0.07)       (0.03) 
   Net increase in net 
     asset value              $   0.00   $  0.00   $  0.00   $  0.00   $   0.00   $  0.00   $  0.00      $  0.00 
   Net asset value, end of 
     period                   $   1.00   $  1.00   $  1.00   $  1.00   $   1.00   $  1.00   $  1.00      $  1.00 
Total return*                    3.57%     2.47%     3.06%     5.29%      7.74%     8.80%     7.05%        3.48% 
Ratio of net operating ex- 
  penses to average net 
  assets                         0.50%     0.75%     0.81%     0.88%      0.75%     0.82%     0.78%        0.53%** 
Ratio of net investment 
  income to average net 
  assets                         2.59%     2.44%     3.03%     5.23%      7.53%     8.43%     6.91%        6.94%** 
Net assets end of period 
  (in thousands)              $173,195   $64,841   $59,097   $73,010   $101,120   $80,121   $59,592      $34,756 
Ratios assuming no waiver 
  of fees or assumption of 
  expenses: 
   Net operating expenses         0.65%     1.10%     1.01%        +          +         +      0.91%        1.01%** 
   Net investment income          2.44%     2.09%     2.82%        +          +         +      6.77%        6.46%** 
<FN>
 * Assumes initial investment at net asset value at the beginning of each 
   period, reinvestment of all dividends and distributions, and the com- 
   plete redemption of the investment at the net asset value at the end of 
   each period. 
** Annualized. 
 + No management fees waived or expenses reimbursed in this period. 
</FN>
</TABLE>

The accompanying notes are an integral part of these financial statements. 

SCHEDULE OF INVESTMENTS -- PIONEER U.S. GOVERNMENT MONEY FUND -- 
DECEMBER 31, 1994 

<TABLE>
<CAPTION>
 PRINCIPAL 
  AMOUNT                             INVESTMENTS IN SECURITIES                              VALUE 
<S>          <C>                                                                         <C>
             U.S. GOVERNMENT AGENCIES -- 106.7% 
$2,000,000   Federal Farm Credit Bank, 5.00%, due 1/3/95                                 $ 2,000,000 
 1,900,000   Federal Farm Credit Bank, 5.30%, due 1/11/95                                  1,897,762 
 2,000,000   Federal Farm Credit Bank, 5.38%, due 2/1/95                                   2,000,000 
   725,000   Federal Farm Credit Bank, 5.64%, due 2/13/95                                    720,518 
 2,000,000   Federal Farm Credit Bank, 5.66%, due 3/1/95                                   2,000,000 
   770,000   Federal Farm Credit Bank, 5.68%, due 2/21/95                                    764,047 
 2,000,000   Federal Farm Credit Bank, 6.05%, due 4/3/95                                   2,000,000 
 1,590,000   Federal Home Loan Bank, 5.20%, due 1/5/95                                     1,589,536 
 1,240,000   Federal Home Loan Bank, 5.23%, due 1/4/95                                     1,239,820 
 1,105,000   Federal Home Loan Bank, 5.28%, due 1/3/95                                     1,105,000 
 1,500,000   Federal Home Loan Bank, 5.29%, due 1/25/95                                    1,495,151 
 1,525,000   Federal Home Loan Bank, 5.33%, due 1/9/95                                     1,523,622 
 2,060,000   Federal Home Loan Bank, 5.34%, due 1/17/95                                    2,055,555 
 1,565,000   Federal Home Loan Bank, 5.45%, due 1/10/95                                    1,563,341 
 1,360,000   Federal Home Loan Bank, 5.45%, due 1/13/95                                    1,357,941 
   880,000   Federal Home Loan Bank, 5.46%, due 1/26/95                                      876,930 
 1,000,000   Federal Home Loan Bank, 5.63%, due 2/21/95                                      992,337 
   925,000   Federal Home Loan Bank, 5.74%, due 2/16/95                                      918,511 
 1,000,000   Federal Home Loan Bank, 5.81%, due 2/28/95                                      990,962 
 1,500,000   Federal Home Loan Bank, 5.83%, due 2/8/95                                     1,491,255 
 1,500,000   Federal Home Loan Bank, 5.92%, due 3/2/95                                     1,485,693 
 1,000,000   Federal Home Loan Bank, 5.94%, due 2/6/95                                       994,391 
                TOTAL INVESTMENTS, AT VALUE -- 106.7%                                    $31,062,372 
                ALL OTHER ASSETS, LESS LIABILITIES -- (6.7)%                              (1,961,793) 
                NET ASSETS -- 100.0%                                                     $29,100,579 
</TABLE>

The accompanying notes are an integral part of these financial statements. 

PIONEER U.S. GOVERNMENT MONEY FUND 
BALANCE SHEET -- DECEMBER 31, 1994 

<TABLE>
<S>                                                                         <C>
ASSETS: 
   Investments, at value based on amortized cost (see Schedule of
     Investments and Note 1)                                                $31,062,372 
   Cash                                                                          10,539 
   Receivables -- 
     Trust shares sold                                                          143,720 
     Interest                                                                    53,887 
     Due from Pioneering Management Corporation (Note 3)                         31,836 
   Other                                                                          2,431 
       Total assets                                                         $31,304,785 
LIABILITIES: 
   Payables -- 
     Investment securities purchased                                        $ 2,000,000 
     Trust shares repurchased                                                   145,356 
     Dividends                                                                    6,160 
   Accrued expenses (Note 3, 4 and 5)                                            52,690 
       Total liabilities                                                    $ 2,204,206 
NET ASSETS: 
   Trust shares (unlimited number of shares authorized), amount paid in 
     on 29,100,579 shares outstanding                                       $29,100,579 
       Total net assets (offering and redemption price of $1.00 per share)  $29,100,579 
</TABLE>

PIONEER U.S. GOVERNMENT MONEY FUND 
STATEMENT OF OPERATIONS -- FOR THE YEAR ENDED DECEMBER 31, 1994 

<TABLE>
<S>                                                                         <C>
INVESTMENT INCOME (NOTE 1): 
   Interest income                                                          $1,282,345 
EXPENSES: 
   Management fees (Note 3)                                                 $  117,274 
   Transfer fees (Note 4)                                                       44,695 
   Printing                                                                      4,941 
   Professional fees                                                            26,371 
   Fees and expenses of nonaffiliated trustees                                   6,794 
   Accounting expenses                                                          39,274 
   Custodian fees                                                               13,051 
   Registration fees                                                            21,286 
   Distribution fees (Note 5)                                                   36,283 
   Miscellaneous expenses                                                       14,657 
     Total expenses                                                         $  324,626 
     Less management fees waived and expenses assumed by Pioneering
       Management Corporation (Note 3)                                         136,070 
     Net expenses                                                           $  188,556 
       Net increase in net assets resulting from operations                 $1,093,789 
</TABLE>

The accompanying notes are an integral part of these financial statements. 

PIONEER U.S. GOVERNMENT MONEY FUND 
STATEMENTS OF CHANGES IN NET ASSETS -- 
FOR THE YEARS ENDED DECEMBER 31, 1994 AND 1993 

<TABLE>
<CAPTION>
                                                                              1994           1993 
<S>                                                                       <C>            <C>
FROM OPERATIONS: 
   Net increase in net assets resulting from operations                   $  1,093,789   $    602,453 
DISTRIBUTIONS TO SHAREHOLDERS FROM: 
   Investment income -- net ($0.036 and $0.026, respectively)             $ (1,093,789)  $   (602,453) 
FROM TRUST SHARE TRANSACTIONS (AT $1.00 PER SHARE): 
   Net proceeds from sale of shares                                       $ 62,195,011   $ 21,866,505 
   Net asset value of shares issued to shareholders in reinvestment of 
     dividends                                                                 996,345        558,517 
   Cost of shares repurchased                                              (57,965,900)   (22,168,561) 
     Net increase in net assets resulting from trust share transac- 
       tions                                                              $  5,225,456   $    256,461 
       Net increase in net assets                                         $  5,225,456   $    256,461 
NET ASSETS: 
   Beginning of year                                                        23,875,123     23,618,662 
   End of year                                                            $ 29,100,579   $ 23,875,123 
</TABLE>

PIONEER U.S. GOVERNMENT MONEY FUND 
FINANCIAL HIGHLIGHTS 
SELECTED DATA FOR A SHARE OUTSTANDING FOR THE PERIODS PRESENTED 

<TABLE>
<CAPTION>
                                           FOR THE YEAR ENDED DECEMBER 31, 
                                                                                             APRIL 11, 
                                                                                              1988 TO 
                                                                                            DECEMBER 31, 
                                1994      1993      1992       1991      1990      1989        1988 
<S>                            <C>       <C>       <C>        <C>       <C>       <C>          <C>
Net asset value, beginning 
  of period                    $  1.00   $  1.00   $  1.00    $  1.00   $  1.00   $  1.00      $ 1.00 
Income from investment oper- 
  ations: 
   Net investment income       $  0.04   $  0.03   $  0.03    $  0.05   $  0.07   $  0.08      $ 0.05 
Distributions to sharehold- 
  ers from: 
   Net investment income         (0.04)    (0.03)    (0.03)     (0.05)    (0.07)    (0.08)      (0.05) 
   Net increase in net 
     asset value               $  0.00   $  0.00   $  0.00    $  0.00   $  0.00   $  0.00      $ 0.00 
   Net asset value, end of 
     period                    $  1.00   $  1.00   $  1.00    $  1.00   $  1.00   $  1.00      $ 1.00 
Total return*                    3.65%     2.63%     3.19%      5.41%     7.61%     8.80%       5.34% 
Ratio of net operating ex- 
  penses to average net as- 
  sets                           0.63%     0.55%     0.59%      0.60%     0.60%     0.53%       0.50%** 
Ratio of net investment in- 
  come to average net assets     3.64%     2.61%     3.15%      5.29%     7.37%     8.37%       7.52%** 
Net assets, end of period 
  (in thousands)               $29,101   $23,875   $23,619    $28,373   $27,828   $20,508      $9,503 
Ratios assuming no waiver of 
  fees or assumption of ex- 
  penses: 
   Net operating expenses        1.08%     1.37%     1.24%      1.08%     0.80%     1.12%       1.13%** 
   Net investment income         3.19%     1.79%     2.50%      4.81%     7.17%     7.77%       6.88%** 
<FN>
 * Assumes initial investment at net asset value at the beginning of each 
   period, reinvestment of all dividends and distributions, and the com- 
   plete redemption of the investment at the net asset value at the end of 
   each period. 
** Annualized. 
</FN>
</TABLE>

The accompanying notes are an integral part of these financial statements. 

SCHEDULE OF INVESTMENTS -- PIONEER TAX-FREE MONEY FUND -- 
DECEMBER 31, 1994 

<TABLE>
<CAPTION>
                 RATINGS 
               (UNAUDITED) 
PRINCIPAL 
 AMOUNT     MOODY'S     S&P        INVESTMENTS IN SECURITIES*              LOC/GUARANTOR**            VALUE 
<S>         <C>         <C>    <C>                                    <C>                           <C>

                               VARIABLE RATE SECURITIES -- 92.5% 
                               DAILY RATE SECURITIES -- 21.9% 
$100,000        Aaa      NR    Charleston County, South Carolina 
                                 Industrial Development Revenue, 
                                 6.00%, 1/1/07                        Morgan Guaranty               $   100,000 
 400,000        P-1     A1+    Farmington, New Mexico, Pollution 
                                 Control Revenue, 6.00%, 9/1/24       Barclays Bank                     400,000 
 400,000     VMIG-1      NR    Louisiana State Offshore Terminal 
                                 Authority, 
                                 6.00%, 9/1/06                        Union Bank of Switzerland         400,000 
 400,000        Aa2     AAA    Peninsula Ports Authority, Virginia 
                                 Port Facilities Revenue, 6.15%, 
                                 12/1/05                              Shell Oil                         400,000 
 400,000        A1+     AA-    Salt Lake County, Utah, Pollution 
                                 Control Revenue Series 1994B, 6.00%, 
                                 8/1/07                               British Petroleum Company         400,000 
 200,000        P-1      NR    Uinta County, Wyoming, Pollution 
                                 Control Revenue, 6.15%, 8/15/20      Chevron Guarantee                 200,000 
 300,000        P-1      NR    Uinta County, Wyoming, Pollution 
                                 Control Revenue, 6.15%, 12/1/22      Chevron Guarantee                 300,000 
                                                                                                   $ 2,200,000 
                               WEEKLY RATE SECURITIES -- 69.6% 
 400,000     VMIG-1    A-1+    Arkansas Development Finance Author- 
                                 ity, 5.45%, 12/1/15                  FGIC                          $   400,000 
 400,000       Baa1      NR    Ashland, Kentucky, Pollution Control 
                                 Revenue for Ashland Oil, 5.25%, 
                                 4/1/09                               Swiss Bank                        400,000 
 300,000     VMIG-1      NR    Calhoun County, Texas, Industrial 
                                 Development Authority Pollution 
                                 Contol Revenue for Alcoa, 5.50%, 
                                 3/1/01                               Credit Suisse                     300,000 
 200,000     VMIG-1      NR    Chelan County, Washington, Develop- 
                                 ment Corporation Pollution Control  
                                 Revenue for Alcoa, 5.50%, 3/1/01     Credit Suisse                     200,000 
 200,000     VMIG-1      NR    District of Columbia Revenue for 
                                 American University, 5.55% 10/1/15   National Westminster Bank         200,000 
 200,000     VMIG-1    A-1+    District of Columbia Revenue for 
                                 Georgetown University, 5.55%, 
                                 4/1/17                               Sanwa Bank                        200,000 
 200,000     VMIG-1    A-1+    District of Columbia Revenue for 
                                 Georgetown University, 5.55%, 
                                 4/1/12                               Sanwa Bank                        200,000 
 400,000     VMIG-1    A-1+    City of Duluth, Minnesota, Tax 
                                 Increment Revenue for Lake Superior 
                                 Paper Industries, 5.55%, 9/1/10      National Australia Bank           400,000 
 400,000         NR    A-1+    Eddy County, New Mexico, Pollution 
                                 Control Revenue, 5.40%, 2/1/03       Harris Trust & Savings            400,000 
 400,000        Aa2      NR    City of Fountain Inn, South Carolina, 
                                 Industrial Development Revenue for 
                                 Cincinnati Milacron, 5.50%, 12/1/08  Bankers Trust                     400,000 
 400,000         NR    A-1+    Hunt County, Texas, Industrial 
                                 Development Corporation for Trico 
                                 Industries, 5.50%, 10/1/02           Algemene Bank Nederland           400,000 
 300,000         NR    A-1+    Illinois Development Finance Author- 
                                 ity for Columbia Graphics Corp., 
                                 5.65%, 6/1/04                        Harris Trust & Savings            300,000 
 100,000     VMIG-1      NR    Jefferson Parish, Louisiana, Indus- 
                                 trial Development Board Revenue, 
                                 5.55%, 12/1/04                       Barclays Bank                     100,000 
 400,000     VMIG-1     A-1    Los Angeles County Museum of Arts 
                                 Project, California 5.55%, 11/1/05   Bank of America                   400,000 
 200,000     VMIG-1    A-1+    Memphis, Tennessee, General Obliga- 
                                 tion, 5.55%, 8/1/03                  Industrial Bank of Japan          200,000 
 400,000     VMIG-1     AAA    New Jersey Turnpike Authority Revenue, 
                                 5.50%, 1/1/00                        MBIA                              400,000 
 400,000     VMIG-1      NR    New York State Power Authority Revenue 
                                 5.50%, 1/1/03                                                         400,000 
 400,000     VMIG-1      NR    North Carolina Education Facilities 
                                 Authority for Bowman Grey School of 
                                 Medicine, 5.45%, 9/1/20              Wachovia Bank                     400,000 
 300,000         NR    A-1+    Pinal County Industrial Development 
                                 Authority, Arizona Revenue 5.55%, 
                                 12/1/05                              Industrial Bank of Japan          300,000 
 200,000     VMIG-1     A-1    Port of Seattle, Washington, General 
                                 Obligation, 5.50%, 1/1/05            Security Pacific                  200,000 
 400,000     VMIG-1    A-1+    Scioto County, Ohio, Marine Terminal 
                                 Facilities Revenue, 5.40%, 8/15/13   Norfolk Southern                  400,000 
 400,000     VMIG-1    A-1+    Utah State Board of Regents Student 
                                 Loan Revenue, 5.40%, 11/1/00         AMBAC                             400,000 
                                                                                                   $ 7,000,000 
                               MONTHLY RATE SECURITIES -- 1.0% 
 100,000        P-1    A-1+    Baltimore, Maryland, Port Series 1981, 
                                 Oxy Petroleum, 3.75%, 10/14/11       National Westminster Bank     $   100,000 
                                   TOTAL VARIABLE RATE SECURITIES                                  $ 9,300,000 
                               COMMERCIAL PAPER -- 2.5% 
 250,000        P-1    A-1+    Nebraska Public Power District, 3.90%, 
                                 1/12/95                              Morgan Guaranty               $   250,000 
                                   TOTAL COMMERCIAL PAPER                                          $   250,000 
                                   TOTAL INVESTMENTS -- 95.0%                                      $ 9,550,000 
                                   ALL OTHER ASSETS, LESS LIABILITIES 
                                    -- 5.0%                                                            509,008 
                                   NET ASSETS -- 100%                                              $10,059,008 

<FN>
 * Interest rates shown are interest rates in effect at December 31, 1994. 
** Name of the issuer of the Letter of Credit (LOC) or Guarantor securing 
   the investment. 
</FN>
</TABLE>

The accompanying notes are an integral part of these financial statements. 

PIONEER TAX-FREE MONEY FUND 
BALANCE SHEET -- DECEMBER 31, 1994 

<TABLE>
<S>                                                                         <C>
ASSETS: 
   Investments, at value based on amortized cost (see Schedule of
     Investments and Note 1)                                                $ 9,550,000 
   Cash                                                                         455,523 
   Receivables -- 
     Trust shares sold                                                           12,625 
     Interest                                                                    45,427 
     Due from Pioneering Management Corporation (Note 3)                         70,494 
   Other                                                                          7,317 
       Total assets                                                         $10,141,386 
LIABILITIES: 
   Payables -- 
     Trust shares repurchased                                               $     2,713 
     Dividends                                                                    2,276 
   Accrued expenses (Notes 3, 4 and 5)                                           77,389 
       Total liabilities                                                    $    82,378 
NET ASSETS: 
   Trust shares (unlimited number of shares authorized), amount paid in on 
     10,059,008 shares outstanding                                          $10,059,008 
       Total net assets (offering and redemption price of $1.00 per share)  $10,059,008 
</TABLE>

PIONEER TAX-FREE MONEY FUND 
STATEMENT OF OPERATIONS -- FOR THE YEAR ENDED DECEMBER 31, 1994 

<TABLE>
<S>                                                                         <C>
INVESTMENT INCOME (NOTE 1): 
   Interest income                                                          $254,703 
EXPENSES: 
   Management fees (Note 3)                                                 $ 36,209 
   Transfer fees (Note 4)                                                     13,805 
   Printing                                                                    7,012 
   Professional fees                                                          29,149 
   Fees and expenses of nonaffiliated trustees                                 6,170 
   Accounting expenses                                                        36,266 
   Custodian fees                                                              9,276 
   Registration fees                                                          12,478 
   Distribution fees (Note 5)                                                  8,147 
   Miscellaneous expenses                                                      8,702 
     Total expenses                                                         $167,214 
     Less management fees waived and expenses assumed by Pioneering
       Management Corporation (Note 3)                                       122,150 
     Net expenses                                                           $ 45,064 
       Net increase in net assets resulting from operations                 $209,639 
</TABLE>

The accompanying notes are an integral part of these financial statements. 

PIONEER TAX-FREE MONEY FUND 
STATEMENTS OF CHANGES IN NET ASSETS -- 
FOR YEARS ENDED DECEMBER 31, 1994 AND 1993 

<TABLE>
<CAPTION>
                                                                             1994          1993 
<S>                                                                       <C>           <C>
FROM OPERATIONS: 
   Net increase in net assets resulting from operations                   $   209,639   $   149,633 
DISTRIBUTIONS TO SHAREHOLDERS FROM: 
   Investment income -- net ($0.023 and $0.019 per share, respec- 
     tively)                                                              $  (209,639)  $  (149,633) 
FROM TRUST SHARE TRANSACTIONS (AT $1.00 PER SHARE): 
   Net proceeds from sale of shares                                       $ 9,036,859   $ 5,963,032 
   Net asset value of shares issued to shareholders in reinvestment of 
     dividends                                                                197,844       134,070 
   Cost of shares repurchased                                              (7,289,256)   (5,224,102) 
     Net increase in net assets resulting from trust share transac- 
       tions                                                              $ 1,945,447   $   873,000 
       Net increase in net assets                                         $ 1,945,447   $   873,000 
NET ASSETS: 
   Beginning of year                                                        8,113,561     7,240,561 
   End of year                                                            $10,059,008   $ 8,113,561 
</TABLE>

PIONEER TAX-FREE MONEY FUND 
FINANCIAL HIGHLIGHTS 
SELECTED DATA FOR A SHARE OUTSTANDING FOR THE PERIODS PRESENTED 

<TABLE>
<CAPTION>
                                          FOR THE YEAR ENDED DECEMBER 31, 
                                                                                        APRIL 11, 
                                                                                         1988 TO 
                                                                                       DECEMBER 31, 
                                1994      1993     1992     1991     1990     1989         1988 
<S>                            <C>       <C>      <C>       <C>      <C>      <C>         <C>
Net asset value, beginning 
of period                      $  1.00   $ 1.00   $ 1.00    $ 1.00   $ 1.00   $ 1.00      $ 1.00 
Income from investment oper- 
ations: 
   Net investment income       $  0.02   $ 0.02   $ 0.02    $ 0.04   $ 0.05   $ 0.06      $ 0.04 
Distributions to sharehold- 
  ers from: 
   Net investment income         (0.02)   (0.02)   (0.02)    (0.04)   (0.05)   (0.06)      (0.04) 
   Net increase in net 
     asset value               $  0.00   $ 0.00   $ 0.00    $ 0.00   $ 0.00   $ 0.00      $ 0.00 
   Net asset value, end of 
     period                    $  1.00   $ 1.00   $ 1.00    $ 1.00   $ 1.00   $ 1.00      $ 1.00 
Total return*                    2.40%    1.92%    2.38%     4.00%    5.48%    6.06%       3.71% 
Ratio of net operating ex- 
  penses to average net as- 
  sets                           0.50%    0.50%    0.50%     0.50%    0.50%    0.50%       4.98%** 
Ratio of net investment in- 
  come to average net assets     2.34%    1.92%    2.33%     3.91%    5.37%    5.86%       5.13%** 
Net assets end of period (In 
  thousands)                   $10,059   $8,114   $7,241    $7,539   $6,968   $5,351      $3,272 
Ratios assuming no waiver of 
  fees or assumption of ex- 
  penses: 
     Net operating expenses      1.87%    1.85%    2.07%     1.08%    1.91%    2.27%       1.50% 
     Net investment income       0.97%    0.57%    0.77%     4.81%    3.96%    4.09%       4.13%** 
<FN>
 * Assumes initial investment at net asset value at the beginning of each 
   period, reinvestment of all dividends and distributions, and the com- 
   plete redemption of the investment at the net asset value at the end of 
   each period. 
** Annualized. 
</FN>
</TABLE>

The accompanying notes are an integral part of these financial statements. 

NOTES TO FINANCIAL STATEMENTS -- DECEMBER 31, 1994 

1. Pioneer Money Market Trust (the Trust) is a Massachusetts business 
trust, registered under the Investment Company Act of 1940 as a diversi- 
fied, open-end management company. The Trust consists of three separate 
no-load money market funds (the Funds): Pioneer Cash Reserves Fund (the 
Cash Reserves Fund), Pioneer U.S. Government Money Fund (the U.S. Govern- 
ment Fund) and Pioneer Tax- Free Money Fund (the Tax-Free Fund). 

After the close of business on June 30, 1994 (Closing Date), the Cash Re- 
serves Fund acquired all assets of the Pioneer Money Market Account, Inc. 
(the Money Market Account) in exchange solely for (i) the issuance of 
shares of the Cash Reserves Fund to the Money Market Account and (ii) the 
assumption by the Cash Reserves Fund of the liabilities of the Money Mar- 
ket Account. Following this transfer, the Money Market Account was liqui- 
dated and dissolved and the Cash Reserves Fund shares were distributed to 
the former shareholders of the Money Market Account. 

This reorganization was accomplished by a tax-free transfer of assets 
whereby each shareholder of the Money Market Account received a number of 
full and fractional shares of the Cash Reserves Fund having a total net 
asset value equal to the net asset value of their shares of the Money Mar- 
ket Account held as of the Closing Date. The net assets, net asset value 
per share and shares outstanding of the Closing Date were: 

<TABLE>
<CAPTION>
                                                                      PIONEER 
                                   PIONEER           PIONEER           CASH 
                                    MONEY             CASH           RESERVES 
                                    MARKET          RESERVES           FUND 
                                ACCOUNT, INC.         FUND          (COMBINED) 
<S>                             <C>               <C>              <C>
Net Assets                      $ 106,188,627     $64,156,271      $170,344,898 
Shares Outstanding                106,188,627      64,156,271       170,344,898 
Net Asset Value 
  Per Share                             $1.00           $1.00             $1.00 
</TABLE>

The following is a summary of significant accounting policies consistently 
followed by the Funds, which are in conformity with those generally ac- 
cepted in the investment company industry. 

A. Investment Securities -- Security transactions are recorded on the 
date the securities are purchased, sold or matured. Investments in securi- 
ties are valued at amortized cost, which approximates market value. Inter- 
est income for securities purchased at face (par) value is accrued daily. 
Investments purchased at a discount or premium are valued by amortizing 
the difference between the original purchase price and maturity value of 
the issue over the period to maturity. All variable rate securities held
by the Tax-Free Fund may be redeemed on seven days' notice. 

B. Federal Taxes -- It is the policy of each Fund to comply with the re- 
quirements of the Internal Revenue Code applicable to regulated investment 
companies and to distribute all of its net investment income and net real- 
ized capital gains, if any, to its shareholders. Therefore, no federal tax 
provisions are required. 

C. Trust Shares -- The Funds record sales and repurchases of trust shares 
on the trade date. Shares are sold and redeemed on a continuing basis at 
net asset value per share. The Funds declare as daily dividends substan- 
tially all of their respective net investment income. All dividends are 
paid on the last business day of the month. Short-term capital gains dis- 
tributions, if any, may be paid with the daily dividends. 

2. At December 31, 1994, the Cash Reserves Fund had a net capital loss 
carryforward of $275,424, which will expire in 2002 if not utilized. 

3. Pioneering Management Corporation (PMC) is the Trust's investment ad- 
viser and a wholly owned subsidiary of The Pioneer Group, Inc. (PGI). Man- 
agement fees are calculated at the annual rate of 0.40% of each Fund's av- 
erage daily net assets. 

PMC had waived its management fees and assumed other operating expenses of 
each Fund to the extent necessary to limit expenses of the trust according 
to the following schedule: 

<TABLE>
<CAPTION>
                                                          EXPENSES LIMITED BY 
    NET ASSETS                                           PMC AS A PERCENTAGE OF 
     PER FUND                                           AVERAGE DAILY NET ASSETS 
<S>                                                     <C>
Up to $20 million                                                 .50% 
Up to $25 million                                                 .55% 
Up to $30 million                                                 .60% 
Up to $35 million                                                 .65% 
Up to $40 million                                                 .70% 
 Over $40 million                                                 .75% 
</TABLE>

PMC's agreement to reimburse each Fund for its expenses is voluntary and 
temporary and may be revised or terminated at any time. 

PMC furnishes investment advice, provides office facilities, and pays ex- 
ecutive salaries and certain other operating expenses under the management 
agreement. No officer of the Trust receives any compensation directly from 
the Trust. All officers of the Trust are directors and/or officers of PMC 
and/or principal underwriter. In addition, certain other services and 
costs, including accounting, regulatory reporting and insurance premiums, 
are paid by the Funds under the management agreement. 

Included in Accrued expenses are accounting fees payable to PMC at Decem- 
ber 31, 1994: 

<TABLE>
<CAPTION>
                FUND                                                     AMOUNT 
<S>                                                                      <C>
Cash Reserves Fund                                                       $3,790 
U.S. Government Fund                                                      2,634 
Tax-Free Fund                                                             2,634 
</TABLE>

4. Pioneering Services Corporation (PSC), a wholly owned subsidiary of 
PGI, provides transfer agent and shareholder services to the Funds at ne- 
gotiated rates. Included in Accrued expenses are transfer fees payable to 
PSC at December 31, 1994: 

<TABLE>
<CAPTION>
                FUND                                                    AMOUNT 
<S>                                                                     <C>
Cash Reserves Fund                                                      $45,550 
U.S. Government Fund                                                      8,800 
Tax-Free Fund                                                             2,535 
</TABLE>

5. The Trust has adopted a Plan of Distribution (the Plan) in accordance 
with Rule 12b-1 under the Investment Company Act of 1940. The Plan gener- 
ally provides that the Funds will reimburse Pioneer Funds Distributor 
(PFD) for PFD's actual expenditures to finance activities intended to re- 
sult in the sale of the Funds' shares or to provide services to the Funds' 
shareholders. Expenditures of the Funds pursuant to the Plan may not ex- 
ceed 0.15% of each Fund's average annual net assets. Included in Accrued 
expenses are distribution fees payable to PFD: 

<TABLE>
<CAPTION>
                FUND                                                    AMOUNT 
<S>                                                                     <C>
Cash Reserves Fund                                                      $79,526 
U.S. Government Fund                                                     11,158 
Tax-Free Fund                                                             2,581 
</TABLE>

REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS 

TO THE SHAREHOLDERS AND TRUSTEES OF 
    Pioneer Money Market Trust: 

We have audited the accompanying balance sheets of Pioneer Money Market 
Trust (a Massachusetts business trust consisting of the Pioneer Cash Re- 
serves Fund, the Pioneer U.S. Government Money Fund and the Pioneer Tax- 
Free Money Fund), including the schedules of investments as of December 
31, 1994, and the related statements of operations, statements of changes 
in net assets for the years ended December 31, 1994 and 1993 and financial 
highlights for the periods presented. These financial statements and fi- 
nancial 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 generally accepted auditing 
standards. Those standards require that we plan and perform the audit to 
obtain reasonable assurance about whether the financial statements and fi- 
nancial highlights are free of material misstatement. An audit includes 
examining, on a test basis, evidence supporting the amounts and disclo- 
sures in the financial statements. Our procedures included confirmation of 
securities owned as of December 31, 1994, by correspondence with the cus- 
todian. An audit also includes 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 pro- 
vide 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 Pioneer Money Market Trust as of December 31, 1994, the results of its 
operations , the changes in its net assets and financial highlights for 
the periods presented, in conformity with generally accepted accounting 
principles. 

                                                        ARTHUR ANDERSEN LLP 

Boston, Massachusetts 
February 3, 1995 

                      TAX TREATMENT OF DISTRIBUTIONS 
               MADE DURING THE YEAR ENDED DECEMBER 31, 1994 

During the year ended December 31, 1994, the Funds paid the following dis- 
tributions: 

<TABLE>
<CAPTION>
                                    DISTRIBUTIONS PER SHARE FROM NET INVESTMENT INCOME 
                                           FOR THE YEAR ENDED DECEMBER 31, 1994 
                                        PIONEER            PIONEER           PIONEER 
                                     CASH RESERVES     U.S. GOVERNMENT      TAX-FREE 
PAYMENT DATE                             FUND            MONEY FUND        MONEY FUND 
<S>                                     <C>              <C>               <C>
January 31, 1994                        $ 0.002            $ 0.002           $ 0.001 
February 28, 1994                         0.002              0.002             0.002 
March 31, 1994                            0.002              0.003             0.002 
April 30, 1994                            0.002              0.002             0.001 
May 31, 1994                              0.003              0.003             0.002 
June 30, 1994                             0.003              0.003             0.002 
July 31, 1994                             0.003              0.003             0.002 
August 31, 1994                           0.003              0.003             0.002 
September 30, 1994                        0.003              0.004             0.002 
October 31, 1994                          0.003              0.003             0.002 
November 30, 1994                         0.004              0.004             0.002 
December 31, 1994                         0.004              0.004             0.003 
                                        $ 0.034            $ 0.036           $ 0.023 
</TABLE>

None of the Funds had any long or short-term capital gains in the periods 
presented. 

For purposes of the 70% dividends received deduction allowed by Corporate 
Shareholders, none of the total distributions presented above represent 
qualifying dividends. 

Of the $0.023 per share distributed by Pioneer Tax-Free Money Fund during 
1994, 100% is tax exempt. 

                TRUSTEES' FEES, PRINCIPAL SHAREHOLDERS AND 
                 SHARE OWNERSHIP OF TRUSTEES AND OFFICERS 

The aggregate direct remuneration paid by the Funds to trustees and offic- 
ers during the year ended December 31, 1994, plus expenses incurred by the 
trustees in attending Fund meetings are described below. Fees of trustees 
who are affiliated with or "interested persons" of Pioneering Management 
Corporation, investment adviser of the Funds, are reimbursed to the Funds 
by Pioneering Management Corporation in accordance with the management 
contract with the Funds and are described below. At December 31, 1994, the 
trustees and officers of the Funds owned beneficially shares in the Funds 
as listed below, together with the corresponding percentages to shares 
outstanding at December 31, 1994. The Pioneer Group, Inc. is a publicly 
held corporation of which Mr. Cogan beneficially owned approximately 15% 
of the outstanding shares of capital stock at December 31, 1994. 

<TABLE>
<CAPTION>
                                       PIONEER          PIONEER         PIONEER 
                                    CASH RESERVES   U.S. GOVERNMENT    TAX-FREE 
                                        FUND          MONEY FUND      MONEY FUND 
<S>                                   <C>             <C>             <C>
Direct Remuneration paid to trustees 
  and officers                        $  4,179          $ 4,179         $ 4,179 
Expenses incurred in attending 
  trustees meetings                   $  1,974          $ 1,904         $ 1,904 
Trustee fees of "interested persons" 
  reimbursed by Pioneering Manage- 
  ment Corporation                    $    333          $   333         $   334 
Shares beneficially owned by 
  trustees and officers at December 
  31, 1994                             875,978           15,547          12,162 
Percentage of shares outstanding at 
  December 31, 1994                       0.50%            0.05%           0.12% 
</TABLE>

PIONEER CASH 
RESERVES FUND 

PIONEER U.S. 
GOVERNMENT 
MONEY FUND 

PIONEER TAX-FREE 
MONEY FUND 
60 State Street 
Boston, Massachusetts 02109 

OFFICERS 
JOHN F. COGAN, JR., Chairman and President 
DAVID D. TRIPPLE, Executive Vice President 
SHERMAN B. RUSS, Vice President 
WILLIAM H. KEOUGH, Treasurer 
JOSEPH P. BARRI, Secretary 

TRUSTEES 
JOHN F. COGAN, JR.                        MARGUERITE A. PIRET 
RICHARD H. EGDAHL, M.D.                      DAVID D. TRIPPLE 
MARGARET B.W. GRAHAM                          STEPHEN K. WEST 
JOHN W. KENDRICK                                JOHN WINTHROP 

INDEPENDENT PUBLIC ACCOUNTANTS 
ARTHUR ANDERSEN LLP 

INVESTMENT ADVISER 
PIONEERING MANAGEMENT CORPORATION 

CUSTODIAN 
BROWN BROTHERS HARRIMAN & CO. 

LEGAL COUNSEL 
HALE AND DORR 

SHAREHOLDER SERVICES AND TRANSFER AGENT 
PIONEERING SERVICES CORPORATION 
60 State Street 
Boston, Massachusetts 02109 

Please call Pioneer for information on: 

Existing accounts, new accounts, 
prospectuses, applications and 
services forms                                 1-800-225-6292 
Fund yields and prices                         1-800-225-4321 
Toll-free fax                                  1-800-225-4240 
Retirement plans                               1-800-622-0176 
Telecommunications Device for the 
Deaf (TDD)                                     1-800-225-1997 

When distributed to persons who are not shareholders of the 
Funds, this report must be accompanied by an official pro- 
spectus, which discusses the objectives, policies and other 
information concerning the Funds. 

0295-2258 
(C)Pioneer Funds Distributor, Inc. 



PIONEER CASH 
RESERVES FUND 

PIONEER U.S. 
GOVERNMENT 
MONEY FUND 

PIONEER TAX-FREE 
MONEY FUND 

ANNUAL REPORT 
DECEMBER 31, 1994 


                                                                    Exhibit 13
                            STOCK PURCHASE AGREEMENT

         This Agreement is made this 6th day of April,  1987 between The Pioneer
Group,  Inc., a Delaware  corporation  ("PGI") and Pioneer Money Market Trust, a
Massachusetts business trust ("Pioneer").

         WHEREAS,  Pioneer  wishes to sell and PGI wishes to purchase  5,000,000
shares of beneficial interest in Pioneer for a purchase price of $1.00 per share
(the "Shares"); and

         WHEREAS,  PGI is purchasing the Shares for the purpose of providing the
initial capitalization of Pioneer;

         NOW, THEREFORE, the parties hereto agree as follows:

         111  Simultaneously  with  the  execution  of  this  Agreement,  PGI is
delivering  to Pioneer a check in the amount of  $5,000,000  in payment  for the
Shares.

         121 PGI agrees that it is purchasing  the Shares for investment and has
no present intention of redeeming or reselling the Shares.

         Executed as of the date first set forth above.



                                                     THE PIONEER GROUP, INC.
                                                     /s/ John F. Cogan, Jr.
                                                     John F. Cogan, Jr.


                                                     PIONEER MONEY MARKET TRUST
                                                     /s/ John F. Cogan, Jr.
                                                     John F. Cogan, Jr.


                        AMENDED CLASS ADISTRIBUTION PLAN

                           PIONEER MONEY MARKET TRUST


     DISTRIBUTION  PLAN,  dated as of March 31,  1995 of  PIONEER  MONEY  MARKET
TRUST, a Delaware business trust (the "Trust").


                                   WITNESSETH

     WHEREAS,  the Trust is engaged in  business  as an  open-end,  diversified,
management investment company and is registered under the Investment Company Act
of 1940, as amended  (collectively  with the rules and  regulations  promulgated
thereunder, the "1940 Act");

     WHEREAS,  the Trust intends to distribute its shares of beneficial interest
(the "Class A Shares") of the  securities  portfolio of each series of the Trust
which  the  Trustees  may  establish  from  time to time  (the  "Portfolio")  in
accordance with Rule 12b-1 promulgated by the Securities and Exchange Commission
under  the  1940  Act  ("Rule  12b-1"),   and  desires  to  adopt  this  amended
distribution plan (the "Class A Plan");

     WHEREAS,  the  Trust  desires  that  Pioneer  Funds  Distributor,  Inc.,  a
Massachusetts corporation ("PFD"), provide certain distribution services for the
Trust's Class A Shares in connection with the Class A Plan;

     WHEREAS,  the Trust has entered into an  underwriting  agreement (in a form
approved by the Trust's  Board of  Trustees in a manner  specified  in such Rule
12b-1) with PFD,  whereby PFD  provides  facilities  and  personnel  and renders
services to the Trust in connection with the offering and  distribution of Class
A Shares (the "Underwriting Agreement");

     WHEREAS,  the Trust also  recognizes and agrees that (a) PFD may retain the
services of firms or individuals to act as dealers or wholesalers (collectively,
the  "Dealers")  of the Class A Shares in  connection  with the  offering of the
Class A Shares,  (b) PFD may  compensate any Dealer that sells Class A Shares in
the manner and at the rate or rates to be set forth in an agreement  between PFD
and  such  Dealer,  and  (c) PFD may  make  such  payments  to the  Dealers  for
distribution  services out of the fee paid to PFD hereunder,  its profits or any
other source available to it; and

     WHEREAS,  the Board of Trustees of the Trust,  in  considering  whether the
Trust  should  adopt  and  implement  this  Class A  Plan,  has  evaluated  such
information  as it deemed  necessary to make an informed  determination  whether
this Class A Plan  should be adopted and  implemented  and has  considered  such
pertinent factors as it deemed necessary to form the basis for a decision to use
assets  of the Trust  for such  purposes,  and has  determined  that  there is a
reasonable  likelihood that the adoption and implementation of this Class A Plan
will benefit the Trust and its shareholders.

     NOW THEREFORE,  the Board of Trustees of the Trust hereby adopts this Class
A Plan for the Trust as a plan of distribution in accordance with Rule 12b-1, on
the following terms and conditions:

     1. The amount of  compensation  paid  during any one year  pursuant to this
Class A Plan may not exceed 0.15 of 1%% of the  average  daily net assets of the
Class A shares of each Portfolio attributable to such year.

     2. Subject to the limit in paragraph 1, the Trust shall  reimburse  PFD for
amounts  expended by PFD to finance any activity which is primarily  intended to
result in the sale of Class A Shares of the Trust or the  provision  of services
to Class A shareholders  of the Trust,  including but not limited to payments to
Dealers and salaries and other  expenses of PFD relating to selling or servicing
efforts,  provided,  that the  Board of  Trustees  of the  Trust  shall  approve
categories  of expenses for which  reimbursement  shall be made pursuant to this
paragraph 2 and, without  limiting the generality of the foregoing,  the initial
categories of such  expenses  shall be (i) a service fee to be paid to qualified
broker-dealers in an amount not to exceed 0.15% per annum of the Trust's average
daily net assets  attributable to Class A shares;  and (ii) reimbursement to PFD
for expenses incurred  providing services to Class A shareholders and supporting
broker-dealer  and other  organizations,  such as banks and trust companies,  in
their effort to provide such services (any addition of such categories  shall be
subject to the approval of the  Qualified  Trustees,  as defined  below,  of the
Trust).  Such  reimbursement  shall be paid ten (10)  days  after the end of the
month or  quarter,  as the case may be, in which  such  expenses  are  incurred.
<PAGE>

Reimbursable expenses will not carryover beyond twelve months from the time they
are incurred.

     3. The Trust  understands  that  agreements  between  PFD and  dealers  may
provide  for payment of fees to Dealers in  connection  with the sale of Class A
Shares and the  provision  of  services  to Class A  shareholders  of the Trust.
Nothing in this Class A Plan shall be construed  as requiring  the Trust to make
any payment to any dealer or to have any obligations to any Dealer in connection
with  services as a dealer of the Class A Shares.  PFD shall agree and undertake
that any  agreement  entered into between PFD and any Dealer shall  provide that
such  Dealer  shall  look  solely  to PFD  for  compensation  for  its  services
thereunder  and that in no event shall such  Dealer  seek any  payment  from the
Trust.

     4. Nothing  herein  contained  shall be deemed to require the Trust to take
any action  contrary to its Agreement and Declaration of Trust or By-Laws or any
applicable  statutory  or  regulatory  requirement  to which it is subject or by
which it is bound, or to relieve or deprive the Trust's Board of Trustees of the
responsibility for the control of the conduct of the affairs of the Trust.

     5. This Class A Plan shall become  effective upon approval by a vote of the
Board  of  Trustees  and a vote  of a  majority  of the  Trustees  who  are  not
"interested  persons" of the Trust and who have no direct or indirect  financial
interest in the  operation of the Plan or in any  agreement  related to the Plan
(the "Qualified Trustees"),  such votes to be cast in person at a meeting called
for the purpose of voting on this Class A Plan.

     6. This Class A Plan will remain in effect indefinitely, provided that such
continuance  is  "specifically  approved at least  annually" by a vote of both a
majority of the Trustees of the Trust and a majority of the Qualified  Trustees.
If such annual approval is not obtained, this Class A Plan shall expire on April
30, 1996. In the event of termination or  non-continuance  of this Class A Plan,
each  Portfolio has twelve months to reimburse any expense which it incurs prior
to such termination or non-continuance.

     7. This Class A Plan may be  amended at any time by the Board of  Trustees,
provided  that this Class A Plan may not be amended to increase  materially  the
limitation  on the annual  percentage  of average  daily net assets which may be
expended  hereunder  without  the  approval  of  holders of a  "majority  of the
outstanding  Class A shares" of the  Portfolio  effected  thereby and may not be
materially amended in any case without a vote of a majority of both the Trustees
and the  Qualified  Trustees.  Any amendment of this Class A Plan to increase or
modify the expense categories  initially designated by the Trustees in paragraph
2 above  shall only  require  approval  of a majority  of the  Trustees  and the
Qualified Trustees if such amendment does not include an increase in the expense
limitation  set forth in paragraph 1 above.  This Class A Plan may be terminated
at any time by a vote of a majority  of the  Qualified  Trustees or by a vote of
the holders of a "majority of the outstanding Class A shares" of the Trust.

     8. The Trust and PFD shall provide the Trust's  Board of Trustees,  and the
Board of Trustees  shall review,  at least  quarterly,  a written  report of the
amounts  expended  under  this  Class A Plan and the  purposes  for  which  such
expenditures were made.

     9. While this Class A Plan is in effect,  the selection  and  nomination of
Qualified  Trustees shall be committed to the discretion of the Trustees who are
not "interested persons" of the Trust.

     10. For the purposes of this Class A Plan, the terms "interested  persons,"
"majority of the outstanding Class A shares" and "specifically approved at least
annually"  are used as defined in the 1940 Act.  For the purpose of this Class A
Plan, the term "majority of the outstanding  Class A Shares" is used as the term
"majority of the outstanding voting securities" is defined in the 1940 Act.

     11.  The  Trust  shall  preserve  copies  of this  Class A Plan,  and  each
agreement  related  hereto and each  report  referred  to in  paragraph 8 hereof
(collectively,  the "Records"), for a period of not less than six (6) years from
the end of the fiscal year in which such  Records  were made and for a period of
two (2) years, each of such Records shall be kept in an easily accessible place.

     12. This Class A Plan shall be construed in accordance with the laws of The
Commonwealth of Massachusetts and the applicable provisions of the 1940 Act.

     13. If any  provision of this Class A Plan shall be held or made invalid by
a court decision,  statute,  rule or otherwise,  the remainder of the Plan shall
not be affected thereby.
                                       2
<PAGE>





                           CLASS B DISTRIBUTION PLAN
                    PIONEER MONEY MARKET TRUST ON BEHALF OF
                           PIONEER CASH RESERVES FUND


     CLASS B  DISTRIBUTION  PLAN,  dated as of March 31,  1995,  of PIONEER CASH
RESERVES FUND (the "Fund"),  a series of Pioneer Money Market Trust,  a Delaware
business trust (the "Trust").

                                   WITNESSETH

     WHEREAS,  the Trust is engaged in  business  as an  open-end,  diversified,
management investment company and is registered under the Investment Company Act
of 1940, as amended  (collectively  with the rules and  regulations  promulgated
thereunder, the "1940 Act");

     WHEREAS,  the Trust, on behalf of the Fund, intends to distribute shares of
beneficial  interest (the "Class B Shares") of the Fund in accordance  with Rule
12b-1  promulgated by the Securities and Exchange  Commission under the 1940 Act
("Rule 12b-1"),  and desires to adopt this Class B distribution plan (the "Class
B Plan") as a plan of distribution pursuant to such Rule;

     WHEREAS,  the Trust,  on behalf of the Fund,  desires  that  Pioneer  Funds
Distributor,   Inc.,  a  Massachusetts   corporation  ("PFD"),  provide  certain
distribution services for the Fund's Class B Shares in connection with the Class
B Plan;

     WHEREAS, the Trust, on behalf of the Fund, has entered into an underwriting
agreement  (in a form  approved  by the  Trust's  Board of  Trustees in a manner
specified  in such Rule 12b-1) with PFD,  whereby PFD  provides  facilities  and
personnel and renders  services to the Fund in connection  with the offering and
distribution of Class B Shares (the "Underwriting Agreement");

     WHEREAS,  the Trust, on behalf of the Fund, also recognizes and agrees that
(a) PFD may retain the  services  of firms or  individuals  to act as dealers or
wholesalers  (collectively,  the  "Dealers") of the Class B Shares in connection
with the  offering  of Class B Shares,  (b) PFD may  compensate  any Dealer that
sells  Class B Shares in the  manner and at the rate or rates to be set forth in
an agreement  between PFD and such Dealer and (c) PFD may make such  payments to
the Dealers for distribution services out of the fee paid to PFD hereunder,  any
deferred sales charges imposed by PFD in connection with the repurchase of Class
B shares, its profits or any other source available to it;

     WHEREAS,  the Trust, on behalf of the Fund,  recognizes and agrees that PFD
may impose certain  deferred sales charges in connection  with the repurchase of
the Fund's Class B shares by the Trust,  and PFD may retain (or receive from the
Trust,  on  behalf  of the  Fund,  as the case may be) all such  deferred  sales
charges; and

     WHEREAS,  the Board of Trustees of the Trust,  in  considering  whether the
Trust, on behalf of the Fund,  should adopt and implement this Class B Plan, has
evaluated such information as it deemed  necessary to an informed  determination
whether this Class B Plan should be adopted and  implemented  and has considered
such pertinent  factors as it deemed  necessary to form the basis for a decision
to use assets of the Fund for such purposes,  and has determined that there is a
reasonable  likelihood that the adoption and implementation of this Class B Plan
will benefit the Fund and its Class B shareholders;

     NOW, THEREFORE, the Board of Trustees of the Trust hereby adopts this Class
B Plan for the Fund as a plan of  distribution  of Class B Shares in  accordance
with Rule 12b-1, on the following terms and conditions:

     1.  (a) The Trust,  on behalf of the Fund, is authorized to compensate  PFD
         for (1) distribution  services and (2) personal and account maintenance
         services  performed and expenses incurred by PFD in connection with the
         Fund's  Class B  shares.  Such  compensation  shall be  calculated  and
         accrued daily and paid monthly or at such other  intervals as the Board
         of Trustees may determine.

                      (b) The amount of  compensation  paid  during any one year
              for distribution  services shall be 0.75% of the average daily net
              assets  of the  Class B shares  of the Fund  attributable  to such
              year.

<PAGE>

                      (c)  Distribution  services and expenses for which PFD may
              be compensated pursuant to this Plan include,  without limitation:
              compensation to and expenses (including allocable overhead, travel
              and telephone expenses) of (i) Dealers,  brokers and other dealers
              who are members of the National Association of Securities Dealers,
              Inc.  ("NASD")  or  their  officers,   sales  representatives  and
              employees,  (ii)  PFD and any of its  affiliates  and any of their
              respective officers,  sales  representatives and employees,  (iii)
              banks and their officers, sales representatives and employees, who
              engage in or support  distribution  of the Fund's  Class B shares;
              printing  of reports  and  prospectuses  for other  than  existing
              shareholders; and preparation,  printing and distribution of sales
              literature and advertising materials.

                      (d) The  amount  of  compensation  paid for  personal  and
              account  maintenance  services and expenses  shall be 0.25% of the
              average  daily  net  assets  of the  Class B  shares  of the  Fund
              attributable to such year. As partial  consideration  for personal
              services and/or account  maintenance  services  provided by PFD to
              the Class B  shares,  PFD  shall be  entitled  to be paid any fees
              payable  under this clause (d) with  respect to Class B shares for
              which  no   dealer  of  record   exists,   where   less  than  all
              consideration  has  been  paid to a  dealer  of  record  or  where
              qualification standards have not been met.

                      (e)  Personal and account  maintenance  services for which
              PFD or any of its affiliates,  banks or Dealers may be compensated
              pursuant to this Plan include,  without limitation:  payments made
              to or on account  of PFD or any of its  affiliates,  banks,  other
              brokers  and  dealers  who  are  members  of the  NASD,  or  their
              officers,  sales  representatives  and  employees,  who respond to
              inquiries of, and furnish  assistance to,  shareholders  regarding
              their ownership of Class B shares or their accounts or who provide
              similar  services  not  otherwise  provided by or on behalf of the
              Fund.

                      (f) PFD may  impose  certain  deferred  sales  charges  in
              connection with the repurchase of the Fund's Class B shares by the
              Trust and PFD may retain (or receive from the Fund as the case may
              be) all such deferred sales charges.

                      (g)  Appropriate  adjustments to payments made pursuant to
              clauses  (b) and (d) of this  paragraph  1 shall be made  whenever
              necessary  to ensure that no payment is made by the Fund in excess
              of the  applicable  maximum cap imposed on asset based,  front-end
              and  deferred  sales  charges by  subsection  (d) of Section 26 of
              Article III of the Rules of Fair Practice of the NASD.

     2. The Trust, on behalf of the Fund,  understands  that agreements  between
PFD and Dealers may  provide for payment of fees to Dealers in  connection  with
the  sale of the  Fund's  Class  B  Shares  and the  provision  of  services  to
shareholders  of the Fund.  Nothing in this Class B Plan shall be  construed  as
requiring the Fund to make any payment to any Dealer or to have any  obligations
to any Dealer in  connection  with  services  as a dealer of the Fund's  Class B
Shares.  PFD shall agree and undertake  that any agreement  entered into between
PFD and any Dealer  shall  provide that such Dealer shall look solely to PFD for
compensation for its services  thereunder and that in no event shall such Dealer
seek any payment from the Trust or the Fund.

     3. Nothing herein contained shall be deemed to require the Trust, on behalf
of the Fund, to take any action  contrary to its Declaration of Trust, as it may
be amended or restated from time to time, or By-Laws or any applicable statutory
or regulatory  requirement to which it is subject or by which it is bound, or to
relieve or deprive the Trust's Board of Trustees of the  responsibility  for and
control of the conduct of the affairs of the Fund.

     4. This Class B Plan shall become  effective upon approval by a vote of the
Board  of  Trustees  and a vote  of a  majority  of the  Trustees  who  are  not
"interested  persons" of the Trust and who have no direct or indirect  financial
interest  in the  operation  of the  Fund's  Class B Plan  or in any  agreements
related to the Fund's Class B Plan (the "Qualified Trustees"),  such votes to be
cast in person at a meeting  called  for the  purpose  of voting on this Class B
Plan.

     5. This Class B Plan will remain in effect indefinitely, provided that such

                                       2
<PAGE>

continuance  is  "specifically  approved at least  annually" by a vote of both a
majority of the Trustees of the Trust and a majority of the Qualified  Trustees.
If such annual approval is not obtained, this Class B Plan shall expire on April
30, 1996.

     6. This Class B Plan may be  amended at any time by the Board of  Trustees,
provided  that this Class B Plan may not be amended to increase  materially  the
limitations on the annual percentage of average net assets which may be expended
hereunder  without the  approval of holders of a  "majority  of the  outstanding
Class B voting  securities" of the Fund and may not be materially amended in any
case  without  a vote of a  majority  of both  the  Trustees  and the  Qualified
Trustees.  This  Class  B Plan  may be  terminated  at any  time  by a vote of a
majority of the Qualified Trustees or by a vote of the holders of a "majority of
the outstanding voting securities" of Class B of the Fund.

     7. The Trust,  on behalf of the Fund,  and PFD shall provide to the Trust's
Board of Trustees, and the Board of Trustees shall review, at least quarterly, a
written report of the amounts  expended under this Class B Plan and the purposes
for which such expenditures were made.

     8. While this Class B Plan is in effect,  the selection  and  nomination of
Qualified  Trustees shall be committed to the discretion of the Trustees who are
not "interested persons" of the Trust.

     9. For the purposes of this Class B Plan, the terms  "interested  persons,"
"majority of the outstanding  voting  securities" and "specifically  approved at
least annually" are used as defined in the 1940 Act.

     10. The Trust, on behalf of the Fund, shall preserve copies of this Class B
Plan, and each agreement related hereto and each report referred to in Paragraph
7 hereof  (collectively,  the "Records"),  for a period of not less than six (6)
years from the end of the fiscal year in which such  Records were made and for a
period  of two (2)  years,  each  of such  Records  shall  be kept in an  easily
accessible place.

     11. This Class B Plan shall be construed in accordance with the laws of The
Commonwealth of Massachusetts and the applicable provisions of the 1940 Act.

     12. If any  provision of this Class B Plan shall be held or made invalid by
a court decision,  statute, rule or otherwise, the remainder of the Class B Plan
shall not be affected thereby.



                                       3
<PAGE>

                           Pioneer Money Market Trust
                                                        File NO. 33-13179
                                                        Exhibit 16
                           PIONEER CASH RESERVES FUND

                     Computation of Performance Quotations

         Yield for seven-day period ending 12/31/89

         Value of account on 12/25/89                       =   $1.00000

         Value of account on 12/31/89                       =   $1.001531

         Base period return                                 =   $0.00153

         0.00153 x 365/7                                    =   7.98% yield

         Effective Yield for seven-day period ending 12/31/89

         Effective Yield             =   (base period return +1) 365/7 -1

                                     =   (0.00153 + 1)365/7 -1

                                     =   (1.00153)365/7     -1

                                     =   8.30% yield

         Daily Dividend for seven-day base period

                                                Daily
                                               Dividend            Price

Monday             (12/25/89)                 .00021864            1.00
Tuesday            (12/26/89)                 .00021877            1.00
Wednesday          (12/27/89)                 .00021901            1.00
Thursday           (12/28/89)                 .00021971            1.00
Friday             (12/29/89)                 .00021873            1.00
Saturday           (12/30/89)                 .00021873            1.00
Sunday             (12/31/89)                 .00021873            1.00


<PAGE>


                       PIONEER U.S. GOVERNMENT MONEY FUND

                     Computation of Performance Quotations

         Yield for seven-day period ending 12/31/89

         Value of account on 12/25/89                       =   $1.00000

         Value of account on 12/31/89                       =   $1.001482

         Base period return                                 =   $0.00148

         0.00148 x 365/7                                    =   7.72% yield

         Effective Yield for seven-day period ending 12/31/89

         Effective Yield             =   (base period return +1) 365/7 -1

                                     =   (0.00148 + 1)365/7 -1

                                     =   (1.00148)365/7     -1

                                     =   8.02% yield

         Daily Dividend for seven-day base period

                                                Daily
                                               Dividend            Price

Monday             (12/25/89)                 .00021045            1.00
Tuesday            (12/26/89)                 .00021104            1.00
Wednesday          (12/27/89)                 .00021117            1.00
Thursday           (12/28/89)                 .00021140            1.00
Friday             (12/29/89)                 .00021116            1.00
Saturday           (12/30/89)                 .00021116            1.00
Sunday             (12/31/89)                 .00021116            1.00


<PAGE>




                          PIONEER TAX FREE MONEY FUND

                     Computation of Performance Quotations

         Yield for seven-day period ending 12/31/89

         Value of account on 12/25/89                       =   $1.00000

         Value of account on 12/31/89                       =   $1.001163

         Base period return                                 =   $0.00116

         0.00116 x 365/7                                    =   6.05% yield


         Effective Yield for seven-day period ending 12/31/89

         Effective Yield             =   (base period return +1) 365/7 -1

                                     =   (0.00116 + 1)365/7 -1

                                     =   (1.00116)365/7     -1

                                     =   6.23% yield

         Daily Dividend for seven-day base period

                                                Daily
                                               Dividend            Price

Monday             (12/25/89)                 .00016088            1.00
Tuesday            (12/26/89)                 .00016252            1.00
Wednesday          (12/27/89)                 .00016625            1.00
Thursday           (12/28/89)                 .00016427            1.00
Friday             (12/29/89)                 .00016972            1.00
Saturday           (12/30/89)                 .00016972            1.00
Sunday             (12/31/89)                 .00016972            1.00

--------
1        Exclusive of capital changes.
2        Exclusive of capital changes.
3        Exclusive of capital changes.



<TABLE> <S> <C>

<ARTICLE>                                        6
<CIK>                                            0000812195
<NAME>                                           Pioneer Money Market Trust
<SERIES>                                         
<NUMBER>                                         1
<NAME>                                           Pioneer Cash Reserves Fund
<MULTIPLIER>                                     1
<CURRENCY>                                       U. S .Dollars
<PERIOD-TYPE>                                    Year
<FISCAL-YEAR-END>                                DEC-31-1994
<PERIOD-START>                                   JAN-01-1994
<PERIOD-END>                                     DEC-31-1994
<EXCHANGE-RATE>                                  1
<INVESTMENTS-AT-COST>                            172,379,998
<INVESTMENTS-AT-VALUE>                           172,379,998
<RECEIVABLES>                                    1,753,551
<ASSETS-OTHER>                                   30,350
<OTHER-ITEMS-ASSETS>                             0
<TOTAL-ASSETS>                                   174,163,899
<PAYABLE-FOR-SECURITIES>                         0  
<SENIOR-LONG-TERM-DEBT>                          0
<OTHER-ITEMS-LIABILITIES>                        968,695
<TOTAL-LIABILITIES>                              968,695
<SENIOR-EQUITY>                                  0
<PAID-IN-CAPITAL-COMMON>                         173,470,628
<SHARES-COMMON-STOCK>                            173,470,628
<SHARES-COMMON-PRIOR>                            64,841,189
<ACCUMULATED-NII-CURRENT>                        0
<OVERDISTRIBUTION-NII>                           0
<ACCUMULATED-NET-GAINS>                          (275,424)
<OVERDISTRIBUTION-GAINS>                         0
<ACCUM-APPREC-OR-DEPREC>                         0
<NET-ASSETS>                                     173,195,204
<DIVIDEND-INCOME>                                0
<INTEREST-INCOME>                                5,315,660
<OTHER-INCOME>                                   0
<EXPENSES-NET>                                   866,542
<NET-INVESTMENT-INCOME>                          4,449,118
<REALIZED-GAINS-CURRENT>                         (275,424)
<APPREC-INCREASE-CURRENT>                        0
<NET-CHANGE-FROM-OPS>                            4,173,694
<EQUALIZATION>                                   0
<DISTRIBUTIONS-OF-INCOME>                        4,449,118
<DISTRIBUTIONS-OF-GAINS>                         0
<DISTRIBUTIONS-OTHER>                            0
<NUMBER-OF-SHARES-SOLD>                          510,388,826
<NUMBER-OF-SHARES-REDEEMED>                      405,899,999
<SHARES-REINVESTED>                              4,140,612
<NET-CHANGE-IN-ASSETS>                           108,354,015
<ACCUMULATED-NII-PRIOR>                          0
<ACCUMULATED-GAINS-PRIOR>                        0
<OVERDISTRIB-NII-PRIOR>                          0
<OVERDIST-NET-GAINS-PRIOR>                       0
<GROSS-ADVISORY-FEES>                            464,522
<INTEREST-EXPENSE>                               0
<GROSS-EXPENSE>                                  1,117,021
<AVERAGE-NET-ASSETS>                             171,815,886
<PER-SHARE-NAV-BEGIN>                            1.000
<PER-SHARE-NII>                                  0.030
<PER-SHARE-GAIN-APPREC>                          0.000
<PER-SHARE-DIVIDEND>                             (0.030)
<PER-SHARE-DISTRIBUTIONS>                        0.000
<RETURNS-OF-CAPITAL>                             0
<PER-SHARE-NAV-END>                              1.000
<EXPENSE-RATIO>                                  0.500
<AVG-DEBT-OUTSTANDING>                           0
<AVG-DEBT-PER-SHARE>                             0.000

</TABLE>

<TABLE> <S> <C>

<ARTICLE>                                         6
<CIK>                                             0000812195
<NAME>                                            Pioneer Money Market Trust
<SERIES>                                          
<NUMBER>                                          2
<NAME>                                            Pioneer U. S. Government Trust
<MULTIPLIER>                                      1
<CURRENCY>                                        U. S .Dollars
<PERIOD-TYPE>                                     Year
<FISCAL-YEAR-END>                                 DEC-31-1994
<PERIOD-START>                                    JAN-01-1994
<PERIOD-END>                                      DEC-31-1994
<EXCHANGE-RATE>                                   1
<INVESTMENTS-AT-COST>                             31,062,372
<INVESTMENTS-AT-VALUE>                            31,062,372
<RECEIVABLES>                                     229,443
<ASSETS-OTHER>                                    2,431
<OTHER-ITEMS-ASSETS>                              10,539
<TOTAL-ASSETS>                                    31,304,785
<PAYABLE-FOR-SECURITIES>                          2,000,000
<SENIOR-LONG-TERM-DEBT>                           0
<OTHER-ITEMS-LIABILITIES>                         204,206
<TOTAL-LIABILITIES>                               2,204,206
<SENIOR-EQUITY>                                   0
<PAID-IN-CAPITAL-COMMON>                          29,100,579
<SHARES-COMMON-STOCK>                             29,100,579
<SHARES-COMMON-PRIOR>                             23,875,123
<ACCUMULATED-NII-CURRENT>                         0
<OVERDISTRIBUTION-NII>                            0
<ACCUMULATED-NET-GAINS>                           0
<OVERDISTRIBUTION-GAINS>                          0
<ACCUM-APPREC-OR-DEPREC>                          0
<NET-ASSETS>                                      29,100,579
<DIVIDEND-INCOME>                                 0
<INTEREST-INCOME>                                 1,282,345
<OTHER-INCOME>                                    0
<EXPENSES-NET>                                    188,556
<NET-INVESTMENT-INCOME>                           1,093,789
<REALIZED-GAINS-CURRENT>                          0
<APPREC-INCREASE-CURRENT>                         0
<NET-CHANGE-FROM-OPS>                             1,093,789
<EQUALIZATION>                                    0
<DISTRIBUTIONS-OF-INCOME>                         1,093,789
<DISTRIBUTIONS-OF-GAINS>                          0
<DISTRIBUTIONS-OTHER>                             0
<NUMBER-OF-SHARES-SOLD>                           62,195,011
<NUMBER-OF-SHARES-REDEEMED>                       57,965,900
<SHARES-REINVESTED>                               996,345
<NET-CHANGE-IN-ASSETS>                            5,225,456
<ACCUMULATED-NII-PRIOR>                           0
<ACCUMULATED-GAINS-PRIOR>                         0
<OVERDISTRIB-NII-PRIOR>                           0
<OVERDIST-NET-GAINS-PRIOR>                        0
<GROSS-ADVISORY-FEES>                             117,274
<INTEREST-EXPENSE>                                0
<GROSS-EXPENSE>                                   324,626
<AVERAGE-NET-ASSETS>                              30,049,837
<PER-SHARE-NAV-BEGIN>                             1.000
<PER-SHARE-NII>                                   0.040
<PER-SHARE-GAIN-APPREC>                           0.000
<PER-SHARE-DIVIDEND>                              (0.040)
<PER-SHARE-DISTRIBUTIONS>                         0.000
<RETURNS-OF-CAPITAL>                              0
<PER-SHARE-NAV-END>                               1.000
<EXPENSE-RATIO>                                   0.630
<AVG-DEBT-OUTSTANDING>                            0
<AVG-DEBT-PER-SHARE>                              0.000

</TABLE>

<TABLE> <S> <C>

<ARTICLE>                                        6
<CIK>                                            0000812195
<NAME>                                           Pioneer Money Market Trust
<SERIES>                                         
<NUMBER>                                         3
<NAME>                                           Pioneer Tax-Free Money Fund
<MULTIPLIER>                                     1
<CURRENCY>                                       U. S .Dollars
<PERIOD-TYPE>                                    Year
<FISCAL-YEAR-END>                                DEC-31-1994
<PERIOD-START>                                   JAN-01-1994
<PERIOD-END>                                     DEC-31-1994
<EXCHANGE-RATE>                                  1
<INVESTMENTS-AT-COST>                            9,550,000
<INVESTMENTS-AT-VALUE>                           9,550,000
<RECEIVABLES>                                    128,546
<ASSETS-OTHER>                                   7,317
<OTHER-ITEMS-ASSETS>                             455,523
<TOTAL-ASSETS>                                   10,141,386 
<PAYABLE-FOR-SECURITIES>                         0  
<SENIOR-LONG-TERM-DEBT>                          0
<OTHER-ITEMS-LIABILITIES>                        82,378
<TOTAL-LIABILITIES>                              82,378
<SENIOR-EQUITY>                                  0
<PAID-IN-CAPITAL-COMMON>                         10,059,008
<SHARES-COMMON-STOCK>                            10,059,008
<SHARES-COMMON-PRIOR>                            8,113,561
<ACCUMULATED-NII-CURRENT>                        0
<OVERDISTRIBUTION-NII>                           0
<ACCUMULATED-NET-GAINS>                          0
<OVERDISTRIBUTION-GAINS>                         0
<ACCUM-APPREC-OR-DEPREC>                         0
<NET-ASSETS>                                     10,059,008
<DIVIDEND-INCOME>                                0
<INTEREST-INCOME>                                254,703
<OTHER-INCOME>                                   0
<EXPENSES-NET>                                   45,064
<NET-INVESTMENT-INCOME>                          209,639
<REALIZED-GAINS-CURRENT>                         0
<APPREC-INCREASE-CURRENT>                        0
<NET-CHANGE-FROM-OPS>                            209,639
<EQUALIZATION>                                   0
<DISTRIBUTIONS-OF-INCOME>                        209,639
<DISTRIBUTIONS-OF-GAINS>                         0
<DISTRIBUTIONS-OTHER>                            0
<NUMBER-OF-SHARES-SOLD>                          9,036,859
<NUMBER-OF-SHARES-REDEEMED>                      7,289,256
<SHARES-REINVESTED>                              197,844
<NET-CHANGE-IN-ASSETS>                           1,945,447
<ACCUMULATED-NII-PRIOR>                          0
<ACCUMULATED-GAINS-PRIOR>                        0
<OVERDISTRIB-NII-PRIOR>                          0
<OVERDIST-NET-GAINS-PRIOR>                       0
<GROSS-ADVISORY-FEES>                            36,209
<INTEREST-EXPENSE>                               0
<GROSS-EXPENSE>                                  167,214
<AVERAGE-NET-ASSETS>                             10,077,768
<PER-SHARE-NAV-BEGIN>                            1.000
<PER-SHARE-NII>                                  0.020
<PER-SHARE-GAIN-APPREC>                          0.000
<PER-SHARE-DIVIDEND>                             (0.020)
<PER-SHARE-DISTRIBUTIONS>                        0
<RETURNS-OF-CAPITAL>                             0
<PER-SHARE-NAV-END>                              1.000
<EXPENSE-RATIO>                                  0.500
<AVG-DEBT-OUTSTANDING>                           0
<AVG-DEBT-PER-SHARE>                             0.000

</TABLE>

                               POWER OF ATTORNEY


     We, the  undersigned  Trustees of Pioneer  Money Market  Trust,  a Delaware
business trust, do hereby severally  constitute and appoint John F. Cogan,  Jr.,
David D. Tripple,  Joseph P. Barri, and Robert P. Nault, and each of them acting
singly, to be our true, sufficient and lawful attorneys, with full power to each
of them, and each of them acting singly,  to sign for each of us, in the name of
each  of us and in the  capacity  as  trustee,  any and  all  amendments  to the
Registration  Statement  on Form N-1A to be filed by Pioneer  Money Market Trust
under the Investment Company Act of 1940, as amended (the "1940 Act"), and under
the  Securities  Act of 1933,  as amended (the "1933 Act"),  with respect to the
offering of its shares of  beneficial  interest and any and all other  documents
and papers relating thereto,  and generally to do all such things in the name of
each of us and on  behalf of each of us in the  capacity  as  trustee  to enable
Pioneer Money Market Trust to comply with the 1940 Act and the 1933 Act, and all
requirements  of the  Securities  and  Exchange  Commission  thereunder,  hereby
ratifying and confirming the signature of each of us as it may be signed by said
attorneys  or  each of them  to any  and  all  amendments  to said  Registration
Statement.

     IN WITNESS WHEREOF,  we have hereunder set our hands on this Instrument the
10th day of March, 1995.


/s/ John F. Cogan, Jr.            /s/ Marguerite A. Piret
John F. Cogan, Jr., Trustee       Marguerite A. Piret, Trustee


/s/ Richard H. Egdahl             /s/ David D. Tripple
Richard H. Egdahl, M.D.,          David D. Tripple, Trustee
Trustee


/s/ Margaret B.W. Graham          /s/ Stephen K. West
Margaret B.W. Graham, Trustee     Stephen K. West, Trustee



/s/ John W. Kendrick              /s/ John Winthrop
John W. Kendrick, Trustee         John Winthrop, Trustee





© 2022 IncJournal is not affiliated with or endorsed by the U.S. Securities and Exchange Commission