WARBURG PINCUS WORLDPERKS TAX FREE MONEY FUND INC
485APOS, 1999-02-26
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<PAGE>   1
   
              As Filed with the Securities and Exchange Commission
                              on February 26, 1999
    

                        Securities Act File No. 333-59805
                    Investment Company Act File No. 811-08901

                       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. 1                             [x]

                                     and/or
    

REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940              [x]

   
                                 Amendment No. 3                             [x]
    

                        (Check appropriate box or boxes)

          Warburg, Pincus WorldPerks Tax Free Money Market Fund, Inc.
      (formerly known as Warburg, Pincus Tax Free Money Market Fund, Inc.)
               (Exact Name of Registrant as Specified in Charter)

        466 Lexington Avenue
         New York, New York                                         10017-3147
(Address of Principal Executive Offices)                            (Zip Code)

Registrant's Telephone Number, including Area Code: (212) 878-0600

   
                                Janna Manes, Esq.
           Warburg, Pincus WorldPerks Tax Free Money Market Fund, Inc.
                              466 Lexington Avenue
                          New York, New York 10017-3147
                    (Name and Address of Agent for Services)
    

                                    Copy to:

                             Rose F. DiMartino, Esq.
                            Willkie Farr & Gallagher
                               787 Seventh Avenue
                          New York, New York 10019-6099

<PAGE>   2

   
Approximate Date of Proposed Public Offering: April 30, 1999
    

   
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)(1)
[x] on April 30, 1999 pursuant to paragraph (a)(1)
[ ] 75 days after filing pursuant to paragraph (a)(2)
[ ] on (date) pursuant to paragraph (a)(2) of Rule 485.
If appropriate, check the following box:
    

   
                  [ ] This post-effective amendment designates a new effective
         date for a previously filed post-effective amendment.
    

<PAGE>   3
   
 
                 SUBJECT TO COMPLETION, DATED FEBRUARY 26, 1999
 
          [NORTHWEST AIRLINES
           WORLDPERKS(R)
           INVESTORMILES(SM) LOGO]

                                   PROSPECTUS
                                April    , 1999
 
                                 WARBURG PINCUS
                        WORLDPERKS(R) MONEY MARKET FUND
 
                                       -
 
                                 WARBURG PINCUS
                    WORLDPERKS(R) TAX FREE MONEY MARKET FUND
 
                                   [LOGO(SM)]
 
           As with all mutual funds, the Securities and Exchange
           Commission has not approved these funds, nor has it passed
           upon the adequacy or accuracy of this Prospectus. It is a
           criminal offense to state otherwise.
 
                          [Warburg Pincus Funds Logo]
 
     THE INFORMATION IN THIS PROSPECTUS IS NOT COMPLETE AND MAY BE CHANGED. WE
     MAY NOT SELL THESE SECURITIES UNTIL THE REGISTRATION STATEMENT FILED WITH
     THE SECURITIES AND EXCHANGE COMMISSION IS EFFECTIVE. THIS PROSPECTUS IS NOT
     AN OFFER TO SELL THESE SECURITIES AND IS NOT SOLICITING AN OFFER TO BUY
     THESE SECURITIES IN ANY STATE WHERE THE OFFER OR SALE IS NOT PERMITTED.
 
[LOGO IN BACKGROUND]
    
<PAGE>   4
 
   
                              [INSIDE FRONT COVER]
    
<PAGE>   5
   
                                    CONTENTS
 
<TABLE>
<S>                                                  <C>
KEY POINTS.................... ....................           4
   Goals and Principal Strategies..................           4
   A Word About Risk...............................           5
   Investor Profile................................           6
   Yield...........................................           6
   WorldPerks Investor Miles.......................           6
NORTHWEST AIRLINES WORLDPERKS(R)
  INVESTORMILES................. ..................           7
   The WorldPerks Program..........................           7
   How Your Mileage is Determined..................           7
   For More Information............................           7
INVESTOR EXPENSES................ .................           8
   Fees and Fund Expenses..........................           8
   Example.........................................           9
THE FUNDS IN DETAIL............... ................          10
   The Management Firms............................          10
   Service.........................................          10
   Fund Information Key............................          11
MONEY MARKET FUND................ .................          12
TAX FREE FUND.................. ...................          14
MORE ABOUT RISK................. ..................          16
   Introduction....................................          16
   Types of Investment Risk........................          16
   Certain Investment Practices....................          18
ABOUT YOUR ACCOUNT................ ................          20
   Share Valuation.................................          20
   Buying and Selling Shares.......................          20
   Account Statements..............................          20
   Distributions...................................          20
   Taxes...........................................          21
OTHER INFORMATION................ .................          23
   About the Distributor...........................          23
FOR MORE INFORMATION............... ...............  back cover
</TABLE>
    
 
                                        3
 
<PAGE>   6
   
                                   KEY POINTS
                         GOALS AND PRINCIPAL STRATEGIES
 
<TABLE>
<CAPTION>
  FUND/RISK FACTORS               GOAL                         STRATEGIES
<S>                     <C>                        <C>
WORLDPERKS              High current income        - Invests in high-quality
MONEY MARKET FUND       consistent with              money-market instruments:
Risk factors:           preservation of capital    - obligations issued or guaranteed
 Credit risk            and liquidity                by the U.S. government, its
 Income risk                                         agencies or instrumentalities
 Interest-rate risk                                - bank and corporate debt
 Market risk                                         obligations
 Sector concentration                              - Concentrates its investments in
                                                     the financial-services sector
                                                   - Portfolio managers select
                                                     investments based on factors such
                                                     as yield, maturity and
                                                     liquidity, within the context of
                                                     their interest-rate outlook
                                                   - Seeks to maintain a stable share
                                                     price of $1
WORLDPERKS TAX FREE     High current income        - Invests in high-quality,
MONEY MARKET FUND       exempt from federal          short-term tax-exempt municipal
Risk factors:           personal income taxes        securities -- debt obligations
 Credit risk            consistent with              issued by states and other
 Income risk            preservation of capital      jurisdictions of the U.S. and
 Interest-rate risk     and liquidity                their authorities, agencies and
 Market risk                                         instrumentalities
                                                   - Fund dividends derived from
                                                     interest on municipal securities
                                                     will be exempt from federal
                                                     personal income taxes
                                                   - Portfolio managers select
                                                     investments based on factors such
                                                     as yield, maturity and
                                                     liquidity, within the context of
                                                     their interest-rate outlook
                                                   - Seeks to maintain a stable share
                                                     price of $1
</TABLE>
    
 
                                        4
 
<PAGE>   7
   
     A WORD ABOUT RISK
 
   All investments involve some level of risk. Simply defined, risk is the
possibility that you will lose money or not make money.
 
   Principal risk factors for the funds are discussed below. Before you invest,
please make sure you understand the risks that apply to your fund.
 
   Investments in the funds are not bank deposits and are not insured or
guaranteed by the Federal Deposit Insurance Corporation or any other government
agency. Although each fund seeks to preserve the value of your investment at $1
per share, it is possible to lose money by investing in a fund.
 
CREDIT RISK
Both funds
 
   The issuer of a security or the counterparty to a contract may default or
otherwise become unable to honor a financial obligation. An issuer's failure to
make scheduled interest or principal payments to a fund could reduce the fund's
income level and share price.
 
INCOME RISK
Both funds
 
   A fund's income level may decline because of falling interest rates and other
market conditions. Each fund's yield will vary from day to day, generally
reflecting changes in overall short-term interest rates. This should be an
advantage when interest rates are rising but not when rates are falling.
 
INTEREST-RATE RISK
Both funds
 
   Changes in interest rates may cause a decline in the market value of an
investment. With fixed-income securities, a rise in interest rates typically
causes a fall in values, while a fall in interest rates typically causes a rise
in values.
 
   A sharp and unexpected rise in interest rates could cause a money market
fund's price to drop below a dollar. However, the extremely short maturity of
securities held in money market portfolios -- a means of achieving an overall
fund objective of principal safety -- reduces their potential for price
fluctuation.
 
MARKET RISK
Both funds
 
   The market value of a security may move up and down, sometimes rapidly and
unpredictably. Market risk may affect a single issuer, industry, sector of the
economy, or the market as a whole. Market risk is common to most
investments -- including debt securities and the mutual funds that invest in
them.
 
SECTOR CONCENTRATION
Money Market Fund
 
   Investing more than 25% of its assets in the financial-services sector will
subject the fund to risks associated with investing in financial-services
companies. These risks may include interest-rate, market, regulatory and other
risks.
    
 
                                        5
<PAGE>   8
   
     INVESTOR PROFILE
 
   THESE FUNDS ARE DESIGNED FOR INVESTORS WHO:
 
 - want to preserve the value of their investment
 
 - are seeking a mutual fund for the money-market portion of an asset-
  allocation portfolio
 
 - want easy access to their money through checkwriting and wire-redemption
  privileges
 
 - are investing emergency reserves or other money for which safety and
  accessibility are more important than total return
 
   THEY MAY NOT BE APPROPRIATE IF YOU:
 
 - are not interested in earning WorldPerks miles
 
 - are seeking an investment for your IRA or other retirement plan
 
 - want federal deposit insurance
 
 - desire the higher income available from longer-term fixed-income funds
 
 - are investing for capital appreciation
 
   You should base your selection of a fund on your own goals, risk preferences
and time horizon.
 
     YIELD
 
   To obtain a fund's current 7-day yield, call toll-free 800-WARBURG.
 
     WORLDPERKS INVESTORMILES
 
   Investing in these funds makes you eligible to earn WorldPerks* Bonus Miles,
good toward free travel on Northwest Airlines, Continental Airlines, KLM Royal
Dutch Airlines and other WorldPerks partner airlines. If you are not a member of
the WorldPerks program, call Northwest Airlines at 800-44-PERKS to enroll before
making an investment in a fund.
 
*WorldPerks is a registered trademark of Northwest Airlines, Inc.
    

                                        6
<PAGE>   9
   
                               NORTHWEST AIRLINES
                          WORLDPERKS(R) INVESTORMILES
 
     THE WORLDPERKS PROGRAM
 
   Investing in these funds makes you eligible to earn WorldPerks Bonus Miles in
Northwest Airlines' WorldPerks InvestorMiles(SM) Program. Mileage is based on
how much and how long you invest. The WorldPerks Program offers free and
discounted travel on Northwest Airlines, Continental Airlines, KLM Royal Dutch
Airlines and other WorldPerks partner airlines. If you are not a member of the
WorldPerks Program, call Northwest Airlines at 800 44-PERKS to enroll over the
phone before you invest.
 
     HOW YOUR MILEAGE IS DETERMINED
 
   Bonus Miles accrue daily at an annual rate of one mile per $4 invested in a
fund. Miles will be posted monthly to your WorldPerks account based on your
average daily fund account balance during the previous month.
 
EXAMPLE
 
   Assume you invest $10,000 on the 16th day of a month that has 30 days and
maintain that balance through the end of the month.
 
   Your miles would accrue daily at the rate of:
 
$10,000 X 1 mile per year/ $4 X 1 year/365 days = 6.8493 MILES PER DAY
 
   Total miles for the 15-day period would be:
 
15 days X 6.8493 miles per day = 103 MILES
 
   If you maintained your $10,000 balance, over the next 30-day month you would
earn:
 
30 days X 6.8493 miles per day = 206 MILES
 
   As in the example, fractional miles are rounded up to the nearest whole mile
when credited. Reinvesting your fund dividends will add to your account balance
and increase the number of miles you earn.
 
     FOR MORE INFORMATION
 
   For information or assistance regarding the WorldPerks InvestorMiles Program,
call Warburg Pincus Funds at 800-WARBURG (800-927-2874). For information about
Northwest WorldPerks Program features, please refer to your member materials.
Northwest Airlines may change the WorldPerks Program rules, program partners,
regulations, benefits, conditions of participation or mileage levels at any time
without notice, even though changes may affect the value of mileage or
FlyWrite(SM) certificates already accumulated. Award travel is subject to seat
availability. The posting of WorldPerks Bonus miles in connection with fund
investments may be changed or discontinued at any time. Northwest Airlines
WorldPerks travel awards, mileage accrual and special offers are subject to
governmental regulations.
    
 
                                        7
<PAGE>   10
   
                               INVESTOR EXPENSES
 
                             FEES AND FUND EXPENSES
 
This table describes the fees and expenses you may bear as a shareholder. Annual
fund operating expense figures are for the fiscal year ended December 31, 1998.
 
<TABLE>
<CAPTION>
 
<S>                                         <C>                       <C>
                                               MONEY MARKET                TAX FREE
                                                   FUND                      FUND
SHAREHOLDER FEES
 (paid directly from your investment)
Sales charge "load" on purchases                   NONE                      NONE
Deferred sales charge "load"                       NONE                      NONE
Sales charge "load" on reinvested
  distributions                                    NONE                      NONE
Redemption fees                                    NONE                      NONE
Exchange fees                                      NONE                      NONE
ANNUAL FUND OPERATING EXPENSES
 (deducted from fund assets)
Management fee                                     .40%                      .40%
Distribution and service (12b-1) fee               .25%                      .25%
Other expenses                                     1.17%                     1.24%
TOTAL ANNUAL FUND OPERATING EXPENSES*              1.82%                     1.89%
</TABLE>
 
* Actual fees and expenses for the fiscal period ended December 31, 1998 are
  shown below. Fee waivers and expense reimbursements or credits reduced some
  expenses during 1998 but may be discontinued at any time.
 
<TABLE>
<CAPTION>
          EXPENSES AFTER WAIVERS                   MONEY                   TAX FREE
            AND REIMBURSEMENTS                  MARKET FUND                  FUND
<S>                                         <C>                       <C>
Management fee                                     .25%                      .25%
Distribution and service (12b-1) fee               .25%                      .25%
Other expenses                                     .26%                      .26%
                                                   -----                     -----
TOTAL ANNUAL FUND OPERATING EXPENSES               .76%                      .76%
</TABLE>
    
 
                                        8
 
<PAGE>   11
   
                                    EXAMPLE
 
This example may help you compare the cost of investing in these funds with the
cost of investing in other mutual funds. Because it uses hypothetical
conditions, your actual costs may be higher or lower.
 
Assume you invest $10,000, each fund returns 5% annually, expense ratios remain
as listed in the first table on the opposite page (before fee waivers and
expense reimbursements or credits) and you close your account at the end of each
of the time periods shown. Based on these assumptions, your cost would be:
 
<TABLE>
<CAPTION>
                                                              ONE YEAR   THREE YEARS
<S>                                                           <C>        <C>
MONEY MARKET FUND                                               $185        $573
TAX FREE FUND                                                   $192        $594
</TABLE>
    
 
                                        9
<PAGE>   12
   
                              THE FUNDS IN DETAIL

 
     THE MANAGEMENT FIRMS
 
WARBURG PINCUS ASSET
MANAGEMENT, INC.
466 Lexington Avenue
New York, NY 10017-3147
 
 - Investment adviser for the funds
 
 - Responsible for determining each fund's investment program, including the
  types, maturities and issuers of securities to be held by the fund
 
 - Supervises the activities of BlackRock
 
 - A professional investment-advisory firm providing investment services to
  individuals since 1970 and to institutions since 1973
 
 - Currently manages approximately $22 billion in assets
 
   For easier reading, Warburg Pincus Asset Management, Inc. will be referred to
as "Warburg Pincus" or "we" throughout this Prospectus.
BLACKROCK INSTITUTIONAL MANAGEMENT CORPORATION
400 Bellevue Parkway
Wilmington, DE 19809
 - Sub-investment adviser for the funds
 
 - Responsible for providing investment research and credit analysis, and
  managing the day-to-day operations of the funds
 
 - A majority owned indirect subsidiary of PNC Bank, N.A.
 
 - Currently manages approximately $50 billion
     SERVICE
 
CREDIT SUISSE ASSET MANAGEMENT LIMITED
Beaufort House
15 St. Botolph Street
London, EC 3A 7JJ
 - Provides the funds with administrative services
 
 - A subsidiary of Credit Suisse Group, one of the world's leading banks
    
 
                                       10
 
<PAGE>   13
   
     FUND INFORMATION KEY
 
   Concise fund-by-fund descriptions begin on the next page. Each description
provides the following information:
 
GOAL AND STRATEGIES
   The fund's particular investment goal and the strategies it intends to use in
pursuing that goal. Percentages of fund assets are based on total assets unless
indicated otherwise.
 
PORTFOLIO INVESTMENTS
   The primary types of securities in which the fund invests. Secondary
investments are described in "More About Risk."
 
RISK FACTORS
   The major risk factors associated with the fund. Additional risk factors are
included in "More About Risk."
 
INVESTOR EXPENSES
   Actual fund expenses for the 1998 fiscal period. Future expenses may be
higher or lower.
 
 - MANAGEMENT FEE The fee paid to the investment adviser and sub-investment
  adviser for providing investment advice to the fund. Expressed as a percentage
  of average net assets after waivers.
 
 - DISTRIBUTION AND SERVICE (12B-1) FEES Fees paid by the fund to the
  distributor for making shares of the fund available to you. Expressed as a
  percentage of average net assets.
 
 - OTHER EXPENSES Fees paid by the fund for items such as administration,
  transfer agency, custody, auditing, legal and registration fees and
  miscellaneous expenses. Expressed as a percentage of average net assets after
  waivers, credits and reimbursements.
 
FINANCIAL HIGHLIGHTS
   A table showing the fund's audited financial performance for up to five
years.
 
 - TOTAL RETURN How much you would have earned on an investment in the fund,
  assuming you had reinvested all dividend and capital-gain distributions.
   The Annual Report includes the auditor's report, along with the fund's
financial statements. It is available free upon request.
    
 
                                       11
<PAGE>   14
   
                               MONEY MARKET FUND
 
     GOAL AND STRATEGIES
 
   The Money Market Fund seeks high current income consistent with preservation
of capital and liquidity. To pursue this goal, it invests in high-quality, U.S.
dollar-denominated money-market instruments. The fund seeks to maintain a stable
$1 share price.
 
   In selecting securities, the portfolio managers may examine the relationships
among yields on various types and maturities of money-market securities in the
context of their outlook for interest rates. For example, commercial paper often
offers a yield advantage over Treasury bills. And if rates are expected to fall,
longer maturities may be purchased to try to preserve the fund's income level.
Conversely, shorter maturities may be favored if rates are expected to rise.
 
     PORTFOLIO INVESTMENTS
 
   This fund invests in the following types of money-market instruments:
 
 - Government securities, including U.S. Treasury bills and other obligations of
  the U.S. government, its agencies or instrumentalities
 
 - U.S. and foreign bank obligations such as certificates of deposit, bankers'
  acceptances, time deposits, commercial paper and debt obligations
 
 - commercial paper and notes of other corporate issuers, including variable
  rate master demand notes and other variable-rate obligations
 
 - repurchase agreements
 
   No more than 5% of assets may be invested in securities rated in the second-
highest short-term category (or unrated equivalents). The rest of the fund's
investments must be in the highest short-term category. Under normal conditions,
the fund will invest at least 25% of assets in the financial-services sector.
 
   The fund maintains an average maturity of 90 days or less, and only invests
in securities which have (or are deemed by the SEC to have) remaining maturities
of 397 days or less at the date of purchase. To a limited extent, the fund may
also engage in other investment practices.
 
     RISK FACTORS
 
   This fund's principal risk factors are:
 
 - credit risk
 
 - income risk
 
 - interest-rate risk
 
 - market risk
 
 - sector concentration risk
 
   The fund's yield will vary with changes in interest rates. If interest rates
fall, your dividend income will likely decline.
 
   Since it is managed to maintain a constant $1 share price, the fund should
have little risk of principal loss. However, there is no assurance the fund will
avoid principal losses in the rare event that fund holdings default or interest
rates rise sharply in an unusually short period.
 
   Concentrating its investments in the financial-services sector will subject
the
    

                                       12
<PAGE>   15
   
fund to risks associated with investing in financial-services companies. These
risks are discussed in "More About Risk." That section also details other
investment practices the fund may use. Please read "More About Risk" carefully
before you invest.
 
     PORTFOLIO MANAGEMENT
 
   Under the supervision of Warburg Pincus, a portfolio management team at
BlackRock Institutional Management Corporation, the fund's sub-investment
adviser, makes the fund's day-to-day investment decisions.
 
     INVESTOR EXPENSES
 
<TABLE>
<CAPTION>
<S>                                 <C>
Management fee                      .25%
Distribution and service
(12b-1) fee                         .25%
All other expenses                  .26%
                                 ------------
     Total expenses                 .76%
</TABLE> 

                              FINANCIAL HIGHLIGHTS
 
The figures below have been audited by the fund's independent auditors,
PricewaterhouseCoopers LLP.
 
<TABLE>
<CAPTION>
<S>                                                           <C>     <C>
- ----------------------------------------------------------------------------
  PERIOD ENDED:                                               12/98(1)
  PER-SHARE DATA
- ----------------------------------------------------------------------------
  Net asset value, beginning of period                          $1.00
- ----------------------------------------------------------------------------
  Investment activities:
  Net investment income                                          0.02
- ----------------------------------------------------------------------------
    Total from investment activities                             0.02
- ----------------------------------------------------------------------------
  Distributions:
  From net investment income                                    (0.02)
- ----------------------------------------------------------------------------
    Total distributions                                         (0.02)
- ----------------------------------------------------------------------------
  Net asset value, end of period                                $1.00
                                                              -----
                                                              -----
  Total return                                                   1.15%(2)
- ----------------------------------------------------------------------------
  RATIOS AND SUPPLEMENTAL DATA
- ----------------------------------------------------------------------------
  Net assets, end of period (000s omitted)                    $12,926
  Ratio of expenses to average net assets                         .58%(3,4)
  Ratio of net income to average net assets                      5.13%(4)
  Decrease reflected in above operating expense ratio due to
    waivers/reimbursements                                       1.24%(4)
- ----------------------------------------------------------------------------
</TABLE>
 
(1) For the period October 1, 1998 (Commencement of Operations) through December
    31, 1998.
(2) Not Annualized.
(3) Interest earned on uninvested cash balances is used to offset portions of
    the transfer agent expense. These arrangements had no effect on the fund's
    expense ratio.
(4) Annualized.
    
                                       13
<PAGE>   16
   
                                 TAX FREE FUND
 
     GOAL AND STRATEGIES
 
   The Tax Free Fund seeks high current income exempt from federal personal
income taxes consistent with preservation of capital and liquidity. To pursue
this goal, it invests in short-term, high-quality municipal securities. The fund
seeks to maintain a stable $1 share price.
 
   In selecting securities, the portfolio managers may examine the relationships
among yields on various types and maturities of municipal securities in the
context of their outlook for interest rates. For example, if rates are expected
to fall, longer maturities may be purchased to try to preserve the fund's income
level. Conversely, shorter maturities may be favored if rates are expected to
rise.
 
     PORTFOLIO INVESTMENTS
 
   This fund invests at least 80% of assets in short-term, high-quality tax-
exempt municipal securities. These include:
 
 - tax-exempt commercial paper
 
 - variable-rate demand notes
 
 - bonds
 
 - municipal put bonds
 
 - bond-anticipation notes
 
 - revenue-anticipation notes
 
   No more than 5% of assets may be invested in securities rated in the second-
highest short-term rating category (or unrated equivalents). The rest of the
fund's investments must be in the highest short-term category.
 
   The fund maintains an average maturity of 90 days or less, and only invests
in securities which have (or are deemed by the SEC to have) remaining maturities
of 397 days or less at the date of purchase. To a limited extent, the fund may
also engage in other investment practices.
 
     RISK FACTORS
 
   This fund's principal risk factors are:
 
 - credit risk
 
 - income risk
 
 - interest-rate risk
 
 - market risk
 
   The fund's yield will vary with changes in interest rates. If interest rates
fall, your dividend income will likely decline.
 
   Since it is managed to maintain a constant $1 share price, the fund should
have little risk of principal loss. However, there is no assurance the fund will
avoid principal losses in the rare event that fund holdings default or interest
rates rise sharply in an unusually short period.
 
   The fund's ability to maintain a stable share price also depends upon
guarantees from banks and other financial institutions that back certain
securities the fund invests in. Changes in the credit quality of these
institutions could cause losses to the fund and affect its share price.
 
   "More About Risk" details certain investment practices the fund may use.
Please read that section carefully before you invest.
    

                                       14
 
<PAGE>   17
   
     PORTFOLIO MANAGEMENT
 
   Under the supervision of Warburg Pincus, a portfolio-management team at
BlackRock Institutional Management Corporation, the fund's sub-investment
adviser, makes the fund's day-to-day investment decisions.
<TABLE>
<CAPTION>
<S>                                                             <C>  
     INVESTOR EXPENSES
 
   Management fee                                                        .25%
   Distribution and service
   (12b-1) fee                                                           .25%
   All other expenses                                                    .26%
                                                                 ------------
 
     Total expenses                                                      .76%
</TABLE>
 
                              FINANCIAL HIGHLIGHTS
 
The figures below have been audited by the fund's independent auditors,
PricewaterhouseCoopers LLP.
 
<TABLE>
<CAPTION>
<S>                                                           <C>     <C>
- ----------------------------------------------------------------------------
  PERIOD ENDED:                                               12/98(1)
  PER-SHARE DATA
- ----------------------------------------------------------------------------
  Net asset value, beginning of period                          $1.00
- ----------------------------------------------------------------------------
  Investment activities:
  Net investment income                                          0.01
- ----------------------------------------------------------------------------
    Total from investment activities                             0.01
- ----------------------------------------------------------------------------
  Distributions:
  From net investment income                                    (0.01)
- ----------------------------------------------------------------------------
    Total distributions                                         (0.01)
- ----------------------------------------------------------------------------
  Net asset value, end of period                                $1.00
                                                              -----
                                                              -----
  Total return                                                    .66%(2)
- ----------------------------------------------------------------------------
  RATIOS AND SUPPLEMENTAL DATA
- ----------------------------------------------------------------------------
  Net assets, end of period (000s omitted)                    $10,589
  Ratio of expenses to average net assets                         .58%(3,4)
  Ratio of net income to average net assets                      2.91%(4)
  Decrease reflected in above operating expense ratio due to
    waivers/reimbursements                                       1.31%(4)
- ----------------------------------------------------------------------------
</TABLE>
 
(1) For the period October 1, 1998 (Commencement of Operations) through December
    31, 1998.
(2) Not Annualized.
(3) Interest earned on uninvested cash balances is used to offset portions of
    the transfer agent expense. These arrangements had no effect on the fund's
    expense ratio.
(4) Annualized.
    
 
                                       15
<PAGE>   18
   
                               MORE ABOUT RISK
 
     INTRODUCTION
 
   A fund's goal and principal strategies largely determine its risk profile.
You will find a concise description of each fund's risk profile in "Key Points."
The fund-by-fund discussions contain more detailed information. This section
discusses other risks that may affect the funds.
 
   The "Certain Investment Practices" table in this section takes a more
detailed look at certain investment practices the funds may use. Some of these
practices may have higher risks associated with them. However, each fund has
limitations and policies designed to reduce many of the risks.
 
     TYPES OF INVESTMENT RISK
 
   The following risks are referred to throughout this Prospectus.
 
   CREDIT RISK The issuer of a security or the counterparty to a contract may
default or otherwise become unable to honor a financial obligation. An issuer's
failure to make scheduled interest or principal payments to a fund could reduce
the fund's income level and share price.
 
   EXPOSURE RISK The risk associated with investments or practices that increase
the amount of money a fund could gain or lose on an investment.
 
    - HEDGED Exposure risk could multiply losses generated by a practice used
     for hedging purposes. Such losses should be substantially offset by gains
     on the hedged investment. However, while hedging can reduce or eliminate
     losses, it can also reduce or eliminate gains.
 
    - SPECULATIVE To the extent that a derivative or practice is not used as a
     hedge, the fund is directly exposed to its risks.
 
   EXTENSION RISK An unexpected rise in interest rates may extend the life of a
mortgage-backed security beyond the expected prepayment time, typically reducing
the security's value.
 
   INCOME RISK A fund's income level may decline because of falling interest
rates.
 
   INTEREST-RATE RISK Changes in interest rates may cause a decline in the
market value of an investment. With bonds and other fixed-income securities, a
rise in interest rates typically causes a fall in values, while a fall in
interest rates typically causes a rise in values.
 
   LIQUIDITY RISK Certain fund securities may be difficult or impossible to sell
at the time and the price that the fund would like. A fund may have to lower the
price, sell other securities instead or forego an investment opportunity. Any of
these could have a negative effect on fund management or performance.
 
   MARKET RISK The market value of a security may move up and down, sometimes
rapidly and unpredictably. Market risk may affect a single issuer, industry,
sector of the economy, or the market as a whole. Market risk is common to most
investments --
    

                                       16
 
<PAGE>   19
   
including debt securities and the mutual funds that invest in them.
 
   NATURAL-EVENT RISK Losses attributable to natural disasters, crop failures
and similar events which are sustained by financial service companies, such as
insurance companies, may hurt issuers of portfolio investments.
 
   POLITICAL RISK Foreign governments may expropriate assets, impose capital or
currency controls, impose punitive taxes, or nationalize a company or industry.
Any of these actions could have a severe effect on security prices and impair a
fund's ability to bring its capital or income back to the U.S. Other political
risks include economic policy changes, social and political instability,
military action and war.
 
   PREPAYMENT RISK Securities with high stated interest rates may be prepaid
prior to maturity. During periods of falling interest rates, a fund would
generally have to reinvest the proceeds at lower rates.
 
   REGULATORY RISK Governments, agencies or other regulatory bodies may adopt or
change laws or regulations that could adversely affect the issuer, the market
value of the security, or a fund's performance.
 
   VALUATION RISK The lack of an active trading market may make it difficult to
obtain an accurate price for a fund security.
 
   YEAR 2000 PROCESSING RISK The funds' investment adviser is working to address
the Year 2000 issue relating to the change from "99" to "00" on January 1, 2000,
and has obtained assurances from major service providers that they are taking
similar steps. The adviser is working on the Year 2000 issue pursuant to a plan
designed to address potential problems, and progress is proceeding according to
the plan. The adviser anticipates the completion of testing of internal systems
in the first part of 1999, and is developing contingency plans intended to
address any unexpected service problems.
 
   The funds' operations are dependent upon interactions among many participants
in the financial-services and other related industries. There is no assurance
that preparations by the adviser and other industry participants will be
sufficient, and any noncompliant computer systems could hurt key fund
operations, such as shareholder servicing, pricing and trading.
 
   The Year 2000 issue affects practically all companies, organizations,
governments, markets and economies throughout the world -- including companies
or governmental entities in which the funds invest and markets in which they
trade. However, at this time no one knows precisely what the degree of impact
will be. To the extent that the impact on a fund holding or on markets or
economies is negative, it could seriously affect a fund's performance.
    
 
                                       17
<PAGE>   20
   
                          CERTAIN INVESTMENT PRACTICES
 
For each of the following practices, this table shows the applicable investment
limitation. Risks are indicated for each practice.
 
KEY TO TABLE:
 
<TABLE>
<S>    <C>
[-]    Permitted without limitation; does not indicate
       actual use
20%    Italic type (e.g., 20%) represents an investment
       limitation as a percentage of NET fund assets; does
       not indicate actual use
20%    Roman type (e.g., 20%) represents an investment
       limitation as a percentage of TOTAL fund assets; does
       not indicate actual use
[ ]    Permitted, but not expected to be used to a
       significant extent
- --     Not permitted
</TABLE>
 
<TABLE>
                                                              MONEY   TAX
                                                              MARKET  FREE
                                                              FUND    FUND
                                                              ------  ----
<S>                                                           <C>     <C>
 INVESTMENT PRACTICE                                              LIMIT
AMT SECURITIES Municipal securities whose interest is a
tax-preference item for purposes of the federal alternative
minimum tax. Credit, liquidity, market, interest-rate,
regulatory risks.                                              [ ]     20%
- ----------------------------------------------------------------------------
EURODOLLAR AND YANKEE OBLIGATIONS U.S. dollar-denominated
certificates of deposit issued or backed by foreign banks
and foreign branches of U.S. banks. Credit, income,
interest-rate, market, political risks.                        [ ]     [ ]
- ----------------------------------------------------------------------------
MORTGAGE-BACKED AND ASSET-BACKED SECURITIES Debt securities
backed by pools of mortgages, including passthrough
certificates and other senior classes of collateralized
mortgage obligations (CMOs), or other receivables. Credit,
extension, interest-rate, liquidity, prepayment risks.         [ ]     [ ]
- ----------------------------------------------------------------------------
MUNICIPAL SECURITIES Debt obligations issued by or on behalf
of a state or other jurisdiction of the U.S. and their
authorities, agencies and instrumentalities. May include
tax-exempt commercial paper, variable-rate demand notes,
bonds, municipal put bonds, bond-anticipation notes and
revenue-anticipation notes. Credit, interest-rate, market
risks.                                                         [ ]     [-]
- ----------------------------------------------------------------------------
REPURCHASE AGREEMENTS The purchase of a security with a
commitment to resell the security back to the counterparty
at the same price plus interest. Credit risk                   [-]     [ ]
- ----------------------------------------------------------------------------
RESTRICTED AND OTHER ILLIQUID SECURITIES Securities with
restrictions on trading, or those not actively traded. May
include private placements. Liquidity, market, valuation
risks.                                                         10%     10%
- ----------------------------------------------------------------------------
SECTOR CONCENTRATION -- FINANCIAL SERVICES Investing more
than 25% of a fund's assets in money market instruments
issued by commercial and industrial banks, savings and loans
and their holding companies; consumer and industrial finance
companies; diversified financial service companies;
investment banking, securities brokerage and investment
advisory companies; leasing companies; insurance companies;
and other companies in the financial services sector.
Credit, interest-rate, market, regulatory and (in the case
of insurance companies) natural-event risks.                   [-]      --
- ----------------------------------------------------------------------------
</TABLE>
    
 
                                       18
<PAGE>   21
   
<TABLE>
                                                              MONEY   TAX
                                                              MARKET  FREE
                                                              FUND    FUND
                                                              ------  ----
<S>                                                           <C>     <C>
 INVESTMENT PRACTICE                                              LIMIT
TEMPORARY DEFENSIVE TACTICS Placing some or all of a fund's
assets in defensive investments when the adviser or
subadviser believes that doing so would be in the best
interests of fund investors. For the Tax Free Fund, these
investments may include taxable securities. Although
intended to avoid losses in unusual market conditions,
defensive tactics might prevent a fund from achieving its
goal.                                                          [ ]     [ ]
- ----------------------------------------------------------------------------
VARIABLE-RATE MASTER DEMAND NOTES Unsecured instruments that
provide for periodic adjustments in their interest rate and
permit the indebtedness of the issuer to vary. Credit,
interest-rate, liquidity, market risks.                        [ ]     [ ]
- ----------------------------------------------------------------------------
WHEN-ISSUED SECURITIES AND FORWARD COMMITMENTS The purchase
or sale of securities for delivery at a future date; market
value may change before delivery. Liquidity, market,
speculative exposure risks.                                    20%     20%
- ----------------------------------------------------------------------------
</TABLE>
    
 
                                       19
 
<PAGE>   22
   
                               ABOUT YOUR ACCOUNT
 
     SHARE VALUATION
 
   The price of your shares is also referred to as their net asset value (NAV).
 
   The NAV is determined at 12:00 noon and at the close of regular trading on
the New York Stock Exchange (NYSE) (usually 4 p.m. Eastern Time) each day the
NYSE is open for business. It is calculated by dividing the fund's total assets,
less its liabilities, by the number of shares outstanding.
 
   Each fund values its securities using amortized cost. This method values a
fund holding initially at its cost and then assumes a constant amortization to
maturity of any discount or premium. The amortized cost method ignores any
impact of fluctuating interest rates.
 
     BUYING AND
     SELLING SHARES
 
   Retirement plans, trusts, corporations, partnerships and certain other legal
entities generally cannot invest in the funds. For Uniform Transfers-to-Minors
Act (UTMA) and Uniform Gifts-to-Minors Act (UGMA) accounts, WorldPerks Bonus
Miles will be credited only to the WorldPerks account of the minor child.
Currently, the Money Market Fund and the Tax Free Fund are the only Warburg
Pincus funds offering Northwest Airlines WorldPerks mileage credit. Each fund
reserves the right to:
 
 - modify or terminate the check-redemption privilege
 
 - limit the number of check redemptions
 
 - begin charging a fee for checks
 
   The accompanying Shareholder Guide explains how to invest directly with the
funds. You will find additional information about purchases, redemptions,
exchanges and services.
 
   Each fund is open on those days when the NYSE is open, typically Monday
through Friday. Your transaction will be priced at the NAV next computed after
we receive your request in proper form.
 
     ACCOUNT STATEMENTS
 
   In general, you will receive account statements as follows:
 
 - after every transaction that affects your account balance (except for
  distribution reinvestments and automatic transactions)
 
 - after any changes of name or address of the registered owner(s)
 
 - otherwise, every quarter
 
   You will also receive annual and semiannual financial reports.
 
     DISTRIBUTIONS
 
   As a fund investor, you are entitled to your share of the fund's net income
and gains on its investments. The fund passes these earnings along to its
shareholders as distributions.
 
   Each fund earns interest from its investments. These are passed along as
dividend distributions. The fund may realize capital gains if it sells
securities for a higher price than it paid for them.
    

                                       20
 
<PAGE>   23
   
These are passed along as capital-gain distributions. Money market funds usually
do not make capital-gain distributions.
 
   The funds declare dividend distributions daily and pay them monthly. Each of
the funds typically distributes long-term capital gains (if any) to shareholders
annually, at the end of its fiscal year. The Tax Free Fund distributes
short-term capital gains (if any) at the end of its fiscal year; the Money
Market Fund distributes them periodically as determined by the Board of
Directors.
 
   Most investors have their distributions reinvested in additional shares of
the same fund. Alternatively, you can choose to have a check for your
distributions mailed to you or sent by electronic transfer. Distributions will
be reinvested unless you select another option on your account application.
 
     TAXES
 
   As with any investment, you should consider how your investment in a fund
will be taxed. Please consult your tax professional concerning your own tax
situation.
 
   Each fund intends to meet the requirements for being a tax-qualified
regulated investment company. As long as a fund continues to qualify, it pays no
federal income tax on the earnings it distributes to shareholders.
 
   A redemption of fund shares (including a redemption as part of an exchange
into another fund) is a taxable event. As each fund seeks to maintain a stable
share price of $1 for both purchases and redemptions, you should not realize a
taxable gain or loss upon a redemption of shares. However, you should consult
your tax advisor regarding whether the crediting of WorldPerk miles as a result
of your investment in a fund could cause a reduction in the tax basis of your
shares and a taxable gain upon redemption.
 
   The Form 1099 that is mailed to you every January details your distributions
and their federal-tax category.
 
MONEY MARKET FUND
 
   Distributions you receive from the Money Market Fund, whether reinvested or
taken in cash, are generally considered taxable. The fund does not expect to
realize long-term capital gains or make capital-gain distributions.
Distributions from other sources are generally taxed as ordinary income.
 
   Depending on provisions in your state's tax law, the portion of the fund's
income derived from "full faith and credit" U.S. Treasury obligations may be
exempt from state and local taxes. The fund will indicate each year the portion
of its income, if any, that may qualify for this exemption.
 
TAX FREE FUND
 
   Interest income that the fund earns is distributed to shareholders as income
dividends. Interest that is federally tax-free when received by the fund remains
tax-free when it is distributed.
    

                                       21
<PAGE>   24
   
   However, gain on the sale of tax-free securities results in taxable
distributions. Short-term capital gains and a portion of the gain on bonds
purchased at a discount are distributed as dividends and taxed as ordinary
income. Although the fund does not expect to make them, long-term capital-gain
distributions would be taxed as long-term capital gains. Distributions of
capital gains are taxable whether you take them in cash or reinvest them.
 
   The interest from some municipal securities is subject to the federal
alternative minimum tax. The fund may invest up to 100% of its assets in these
securities. Individuals who are subject to the tax must report this interest on
their tax returns. In addition, the fund may invest a portion of its assets in
securities that generate income that is not exempt from federal income tax.
 
   A portion of the fund's dividends may be free from state or local taxes.
Income from investments in your state is often tax-free to you. The fund will
indicate each year a breakdown of the fund's income from each state to help you
calculate your taxes.
    
 
                                       22
<PAGE>   25
   
                               OTHER INFORMATION
 
     ABOUT THE DISTRIBUTOR
 
   Counsellors Securities Inc., a wholly owned subsidiary of Warburg Pincus, is
responsible for:
 
 - making the funds available to you
 
 - payments related to the funds' participation in the Northwest Airlines
  WorldPerks program
 
 - account servicing and maintenance
 
 - other administrative services related to the sale of shares
 
   As part of their business strategies, each of the funds has adopted a Rule
12b-1 shareholder servicing and distribution plan to compensate Counsellors
Securities for the above services. Under the plan, Counsellors Securities
receives fees at an annual rate of 0.25% of average daily net assets of the
fund's shares. In the case of these funds, the distribution and service (12b-1)
fees are used primarily to pay for WorldPerks Investor Miles.
 
   Because the fees are paid out of a fund's assets on an on-going basis, over
time they will increase the cost of your investment and may cost you more than
paying other types of sales charges.
 
   Warburg Pincus or its affiliates may, out of their own resources, pay a
portion of the expense for the funds' participation in the WorldPerks program.
    
 
                                       23
 
<PAGE>   26
   
                              FOR MORE INFORMATION
 
 
   More information about these funds is available free upon request, including
the following:
 
     SHAREHOLDER GUIDE
 
   Explains how to buy and sell shares. The Shareholder Guide is incorporated by
reference into (is legally part of) this Prospectus.
 
     ANNUAL/SEMIANNUAL REPORT TO SHAREHOLDERS
 
   Includes financial statements, portfolio investments and detailed performance
information.
 
   The Annual Report also contains a letter from the fund's manager discussing
market conditions and investment strategies that significantly affected fund
performance during its past fiscal year.
 
     OTHER INFORMATION
 
   A current Statement of Additional Information (SAI), which provides more
details about the funds, is on file with the Securities and Exchange Commission
(SEC) and is incorporated by reference.
 
   You may visit the SEC's Internet Web site (www.sec.gov) to view the SAI,
material incorporated by reference, and other information. You can also obtain
copies by visiting the SEC's Public Reference Room in Washington, DC (phone
800-SEC-0330) or by sending your request and a duplicating fee to the SEC's
Public Reference Section, Washington, DC 20549-6009.
 
   Please contact Warburg Pincus Funds to obtain information, without charge,
the SAI and Annual and Semiannual Reports and to make shareholder inquiries:
 
BY TELEPHONE:
   800-WARBURG
   (800-927-2874)
 
BY MAIL:
   Warburg Pincus WorldPerks Funds
   P.O. Box 9030
   Boston, MA 02205-9030
 
BY OVERNIGHT OR COURIER SERVICE:
   Boston Financial
   Attn: Warburg Pincus WorldPerks   Funds
   2 Heritage Drive
   North Quincy, MA 02171
 
ON THE INTERNET:
   www.warburg.com
 
SEC FILE NUMBERS:
 
Warburg Pincus WorldPerks Money
Market Fund                                                            811-08899
 
Warburg Pincus WorldPerks Tax Free
Money Market Fund                                                      811-08901
 
                          [Warburg Pincus Funds Logo]
 
                      P.O. BOX 9030, BOSTON, MA 02205-9030
                 800-WARBURG (800-927-2874)  - www.warburg.com
COUNSELLORS SECURITIES INC., DISTRIBUTOR.                            FFNW-1-0499
    
<PAGE>   27
   
                 Subject to Completion, Dated February 26, 1999
    

                       STATEMENT OF ADDITIONAL INFORMATION

   
                                 APRIL __, 1999
    

                   WARBURG PINCUS WORLDPERKS MONEY MARKET FUND

              WARBURG PINCUS WORLDPERKS TAX FREE MONEY MARKET FUND

   
This combined Statement of Additional Information provides information about
Warburg Pincus WorldPerks Money Market Fund (the "Money Market Fund") and
Warburg Pincus WorldPerks Tax Free Money Market Fund (the "Tax Free Fund" and
collectively with the Money Market Fund, the "Funds") which supplements the
information that is contained in the combined Prospectus for the Funds, dated
April __, 1999.
    

   
Each Fund's audited annual report dated December 31, 1998, which either
accompanies this Statement of Additional Information or has previously been
provided to the investor to whom this Statement of Additional Information is
being sent, is incorporated herein by reference.
    

   
This Statement of Additional Information is not a prospectus and should be read
in conjunction with the Prospectus. Copies of the Prospectus and the Annual
Report can be obtained by writing or telephoning:
    

   
                         Warburg Pincus WorldPerks Funds
                                  P.O. Box 9030
                        Boston, Massachusetts 02205-9030
                                   800-WARBURG
    

<PAGE>   28
   
                                    Contents

                                                                            Page

INVESTMENT OBJECTIVES..........................................................1
GENERAL........................................................................1
     Price and Portfolio Maturity..............................................1
     Portfolio Quality and Diversification.....................................1
INVESTMENT POLICIES............................................................2
     Municipal Securities......................................................2
     Bank Obligations..........................................................4
     Variable Rate Master Demand Notes.........................................4
     Government Securities.....................................................5
     When-Issued Securities....................................................5
     Repurchase Agreements.....................................................6
     Reverse Repurchase Agreements and Borrowings..............................6
     Stand-By Commitment Agreements............................................7
     Third Party Puts..........................................................8
     Taxable Investments.......................................................8
     Other Investment Limitations..............................................9
         Money Market Fund.....................................................9
         Tax Free Fund........................................................10
PORTFOLIO VALUATION...........................................................12
PORTFOLIO TRANSACTIONS........................................................13
MANAGEMENT OF THE FUNDS.......................................................14
     Officers and Board of Directors..........................................14
     Directors' Total Compensation............................................17
     Investment Advisers, Sub-Investment Adviser and Administrator
     and Co-Administrator.....................................................17
     Banking Laws.............................................................19
     Custodian and Transfer Agent.............................................20
     Organization of the Funds................................................20
     Distribution and Shareholder Servicing...................................21
ADDITIONAL PURCHASE AND REDEMPTION INFORMATION................................23
     Automatic Cash Withdrawal Plan...........................................23
EXCHANGE PRIVILEGE............................................................24
ADDITIONAL INFORMATION CONCERNING TAXES.......................................24
DETERMINATION OF YIELD........................................................27
INDEPENDENT ACCOUNTANTS AND COUNSEL...........................................28
MISCELLANEOUS.................................................................28
FINANCIAL STATEMENTS..........................................................29
APPENDIX.....................................................................A-1
     DESCRIPTION OF COMMERCIAL PAPER RATINGS.................................A-1
     DESCRIPTION OF MUNICIPAL SECURITIES RATINGS.............................A-1
    

                                      (i)
<PAGE>   29

                              INVESTMENT OBJECTIVES

   
         The following information supplements the discussion of each Fund's
investment objective and policies in the Prospectus. There are no assurances
that the Funds will achieve their investment objectives.
    

         The investment objective of the Money Market Fund is to provide
investors with high current income consistent with liquidity and stability of
principal.

         The investment objective of the Tax Free Fund is to provide investors
with as high a level of current income that is exempt from federal personal
income taxes as is consistent with preservation of capital and liquidity.

   
         Unless otherwise indicated, each Fund is permitted to engage in the
following investment strategies. The Funds are not obligated to pursue any of
the following strategies and do not represent that these techniques are
available now or will be available at any time in the future.
    

   
                                     GENERAL
    

   
         Price and Portfolio Maturity. Each Fund invests only in securities
which are purchased with and payable in U.S. dollars and which have (or,
pursuant to regulations adopted by the Securities and Exchange Commission
("SEC"), are deemed to have) remaining maturities of 397 calendar days or less
at the date of purchase by a Fund. For this purpose, variable rate master demand
notes (as described below), which are payable on demand, or, under certain
conditions, at specified periodic intervals not exceeding 397 calendar days, in
either case on not more than 30 days' notice, will be deemed to have remaining
maturities of 397 calendar days or less. The Fund maintains a dollar-weighted
average portfolio maturity of 90 days or less. The Fund follows these policies
to maintain a constant net asset value of $1.00 per share, although there is no
assurance that it can do so on a continuing basis.
    

   
         Portfolio Quality and Diversification. Each Fund will limit its
portfolio investments to securities that its Board determines present minimal
credit risks and which are "Eligible Securities" at the time of acquisition by a
Fund. The term Eligible Securities includes securities rated by the "Requisite
NRSROs" in one of the two highest short-term rating categories, securities of
issuers that have received such ratings with respect to other short-term debt
securities and comparable unrated securities. "Requisite NRSROs" means (i) any
two nationally recognized statistical rating organizations ("NRSROs") that have
issued a rating with respect to a security or class of debt obligations of an
issuer, or (ii) one NRSRO, if only one NRSRO has issued a rating with respect to
such security or issuer at the time that the Fund acquires the security. The
Funds may purchase securities that are unrated at the time of purchase that a
Fund's investment adviser and sub-investment adviser deem to be of comparable
quality to rated securities that the Fund may purchase. The NRSROs currently
designated as such by the SEC are Standard & Poor's Ratings Services ("S&P"),
Moody's Investors Service, Inc.
    

<PAGE>   30

   
("Moody's"), FitchIBCA, Inc. and Duff and Phelps, Inc. A discussion of the
ratings categories of the NRSROs is contained in the Appendix to the Fund's
Statement of Additional Information.
    

   
         The Funds have adopted certain credit quality, maturity and
diversification requirements under Rule 2a-7 under the Investment Company Act of
1940, as amended (the "1940 Act"), as operating policies. Under these policies,
there are two tiers of Eligible Securities, first and second tier, based on
their ratings by NRSROs or, if the securities are unrated, on determinations by
a Fund's investment adviser and sub-investment adviser. These policies generally
restrict a Fund from investing more than 5% of its assets in second tier
securities and limit to 5% of assets the portion that may be invested in any one
issuer. In addition, the credit quality and diversification policies vary to
some extent between the Money Market and the Tax Free Funds because the Tax Free
Fund is a tax exempt fund.
    

   
                               INVESTMENT POLICIES
    

   
         Municipal Securities. Under normal circumstances, at least 80% of the
Tax Free Fund's assets will be invested in Municipal Securities. Municipal
Securities include short-term debt obligations issued by governmental entities
to obtain funds for various public purposes, including the construction of a
wide range of public facilities, the refunding of outstanding obligations, the
payment of general operating expenses and the extension of loans to public
institutions and facilities. Private activity securities that are issued by or
on behalf of public authorities to finance various privately-operated facilities
are included within the term Municipal Securities if the interest paid thereon
is exempt from federal income tax.
    

         The two principal types of Municipal Securities consist of "general
obligation" and "revenue" issues, and the Tax Free Fund's portfolio may include
"moral obligation" issues, which are normally issued by special purpose
authorities. General obligation bonds are secured by the issuer's pledge of its
full faith, credit and taxing power for the payment of principal and interest.
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 tax or other specific revenue source such as the user of the facility
being financed. Private activity securities held by the Fund are in most cases
revenue bonds and are not payable from the unrestricted revenues of the issuer.
Consequently, the credit quality of such private activity securities is usually
directly related to the credit standing of the corporate user of the facility
involved.

         There are, of course, variations in the quality of Municipal
Securities, both within a particular classification and between classifications,
and the yields on Municipal Securities depend upon a variety of factors,
including general money market conditions, the financial condition of the
issuer, general conditions of the municipal bond market, the size of a
particular offering, the maturity of the obligation and the rating of the issue.
The ratings of rating agencies represent their opinions as to the quality of
Municipal Securities. It should be emphasized, however, that ratings are general
and are not absolute standards of quality, and


                                      -2-
<PAGE>   31

Municipal Securities with the same maturity, interest rate and rating may have
different yields while Municipal Securities of the same maturity and interest
rate with different ratings may have the same yield. Subsequent to its purchase
by the Tax Free Fund, an issue of Municipal Securities may cease to be rated or
its rating may be reduced below the minimum rating required for purchase by the
Fund. The Fund's investment adviser and sub-investment adviser will consider
such an event in determining whether the Fund should continue to hold the
obligation. See the Appendix attached hereto for further information concerning
ratings and their significance.

         An issuer's obligations under its Municipal Securities are subject to
the provisions of bankruptcy, insolvency and other laws affecting the rights and
remedies of creditors, such as the Federal Bankruptcy Code, and laws, if any,
which may be enacted by federal or state legislatures extending the time for
payment of principal or interest, or both, or imposing other constraints upon
enforcement of such obligations or upon the ability of municipalities to levy
taxes. There is also the possibility that as a result of litigation or other
conditions, the power or ability of any one or more issuers to pay, when due,
principal of and interest on its, or their, Municipal Securities may be
materially adversely affected.

         Among other instruments, the Tax Free Fund may purchase short-term Tax
Anticipation Notes, Bond Anticipation Notes, Revenue Anticipation Notes and
other forms of short-term loans. Such notes are issued with a short-term
maturity in anticipation of the receipt of tax funds, the proceeds of bond
placements or other revenues.

   
         Special Considerations and Risk Factors Relating to the Money Market
Fund. To the extent that the Money Market Fund invests a significant portion of
its assets in money market instruments issued by companies in the banking
industry and the financial services sector, the Fund is subject to the risks
associated with investing in banking and financial services issuers. The
companies within the banking industry and the financial services sector are
subject to extensive regulation, rapid business changes, volatile performance
dependent upon the availability and cost of capital and prevailing interest
rates, and significant competition. General economic conditions significantly
affect these companies. Credit and other losses resulting from the financial
difficulty of borrowers or other third parties have a potentially adverse effect
on companies in this industry. Investment banking, securities brokerage and
investment advisory companies are particularly subject to government regulation
and the risks inherent in securities trading and underwriting activities.
Insurance companies are particularly subject to government regulation and rate
setting, potential antitrust and tax law changes, and industry-wide pricing and
competition cycles. Property and casualty insurance companies may also be
affected by weather and other catastrophes. Life and health insurance companies
may be affected by mortality and morbidity rates, including the effects of
epidemics. Individual insurance companies may be exposed to reserve
inadequacies, problems in investment portfolios and failures by reinsurance
carriers.
    

   
         Special Considerations and Risk Factors Relating to the Tax Free Fund.
In seeking to achieve its investment objective the Tax Free Fund may invest all
or any part
    


                                      -3-
<PAGE>   32

   
of its assets in Municipal Securities which are industrial development bonds.
Moreover, although the Fund does not currently intend to do so on a regular
basis, it may invest more than 25% of its assets in Municipal Securities the
interest on which is paid solely from revenues of economically related projects,
if such investment is deemed necessary or appropriate by the Fund's investment
adviser and sub-investment adviser. To the extent that the Fund's assets are
concentrated in Municipal Securities payable from revenues on economically
related projects and facilities, the Fund will be subject to the peculiar risks
presented by such projects to a greater extent than it would be if the Fund's
assets were not so concentrated.
    

   
         The Tax Free Fund also invests in securities backed by guarantees from
banks and other financial institutions. The Fund's ability to maintain a stable
share price is largely dependent upon such guarantees, which are not supported
by federal deposit insurance. Consequently, changes in the credit quality of
these institutions could have an adverse impact on securities they have
guaranteed or backed, which could cause losses to the Fund and affect its share
price.
    

   
         Bank Obligations. The Money Market Fund may purchase bank obligations,
including United States dollar-denominated instruments issued or supported by
the credit of the United States or foreign banks or savings institutions having
total assets at the time of purchase in excess of $1 billion. While the Fund
will invest in obligations of foreign banks or foreign branches of United States
banks only if the Fund's investment adviser and sub-investment adviser deem the
instrument to present minimal credit risks, such investments may nevertheless
entail risks that are different from those of investments in domestic
obligations of United States banks due to differences in political, regulatory
and economic systems and conditions. Such risks include future political and
economic developments, the possible imposition of withholding taxes on interest
income, possible establishment of exchange controls or the adoption of other
foreign governmental restrictions which might adversely affect the payment of
principal and interest on such obligations. The Fund may also make
interest-bearing savings deposits in commercial and savings banks in amounts not
in excess of 5% of its assets.
    

   
         Variable Rate Master Demand Notes. Each Fund may also purchase variable
rate master demand notes, which are unsecured instruments that permit the
indebtedness thereunder to vary and provide for periodic adjustments in the
interest rate. Although the notes are not normally traded and there may be no
secondary market in the notes, a Fund may demand payment of principal and
accrued interest at any time and may resell the note at any time to a third
party. In the event an issuer of a variable rate master demand note defaulted on
its payment obligation, the Fund might be unable to dispose of the note because
of the absence of a secondary market and might, for this or other reasons,
suffer a loss to the extent of the default.
    

         Variable rate master demand notes held by a Fund may have maturities of
more than thirteen months, provided: (i) the Fund is entitled to payment of
principal and accrued interest upon not more than seven days' notice and (ii)
the rate of interest on such notes is


                                      -4-
<PAGE>   33

adjusted automatically at periodic intervals which may extend up to thirteen
months. In determining the Fund's average weighted portfolio maturity and
whether a variable rate master demand note has a remaining maturity of thirteen
months or less, each note will be deemed by the Fund to have a maturity equal to
the longer of the period remaining until its next interest rate adjustment or
the period remaining until the principal amount owed can be recovered through
demand. In determining whether an unrated variable rate master demand note is of
comparable quality at the time of purchase to instruments rated "high quality"
by any major rating service or when purchasing variable rate master demand
notes, the Fund's investment adviser and sub-investment adviser will consider
the earning power, cash flow and other liquidity ratios of the issuer of the
note and will continuously monitor its financial condition. In addition, when
necessary to ensure that a note is of "high quality," the Fund will require that
the issuer's obligation to pay the principal of the note be backed by an
unconditional bank letter of line of credit, guarantee or commitment to lend.

         In the event an issuer of a variable rate master demand note defaults
on its payment obligation, a Fund might be unable to dispose of the note because
of the absence of a secondary market and might, for this or other reasons,
suffer a loss to the extent of the default. However, the Fund will invest in
such instruments only where its investment adviser and sub-investment adviser
believe that the risk of such loss is minimal. In determining average weighted
portfolio maturity, a variable rate master demand note will be deemed to have a
maturity equal to the longer of the period remaining to the next interest rate
adjustment or the demand note period.

   
         Government Securities. Government Securities in which the Fund may
invest include Treasury Bills, Treasury Notes and Treasury Bonds; other
obligations that are supported by the full faith and credit of the United States
Treasury, such as Government National Mortgage Association pass-through
certificates; obligations that are supported by the right of the issuer to
borrow from the Treasury, such as securities of Federal Home Loan Banks; and
obligations that are supported only by the credit of the instrumentality, such
as Federal National Mortgage Association bonds.
    

   
         When-Issued Securities. A Fund may purchase Municipal Securities or
portfolio securities, as the case may be, on a "when-issued" basis (i.e., for
delivery beyond the normal settlement date at a stated price and yield).
When-issued securities are securities purchased for delivery beyond the normal
settlement date at a stated price and yield. A Fund will generally not pay for
such securities or start earning interest on them until they are received.
Securities purchased on a when-issued basis are recorded as an asset and are
subject to changes in value based upon changes in the general level of interest
rates. The Fund expects that commitments to purchase when-issued securities will
not exceed 25% of the value of its total assets absent unusual market
conditions, and that a commitment by the Fund to purchase when-issued securities
will generally not exceed 45 days. The Fund does not intend to purchase
when-issued securities for speculative purposes but only in furtherance of its
investment objectives.
    


                                      -5-
<PAGE>   34

         When the Fund agrees to purchase when-issued securities, its custodian
will set aside cash or liquid securities in a segregated account equal to the
amount of the commitment. Normally, the custodian will set aside portfolio
securities to satisfy a purchase commitment, and in such a case the Fund may be
required subsequently to place additional assets in the segregated account in
order to ensure that the value of the account remains equal to the amount of the
Fund's commitment. It may be expected that the Fund's net assets will fluctuate
to a greater degree when it sets aside portfolio securities to cover such
purchase commitments than when it sets aside cash. Because the Fund will set
aside cash and liquid assets to satisfy its purchase commitments in the manner
described, the Fund's liquidity and ability to manage its portfolio might be
affected in the event its commitments to purchase when-issued securities ever
exceeded 25% of the value of its assets.

         When a Fund engages in when-issued transactions, it relies on the
seller to consummate the trade. Failure of the seller to do so may result in the
Fund's incurring a loss or missing an opportunity to obtain a price considered
to be advantageous.

   
         Repurchase Agreements. Each Fund may agree to purchase money market
instruments from financial institutions such as banks and broker-dealers subject
to the seller's agreement to repurchase them at an agreed-upon date and price
("repurchase agreements"). The repurchase price generally equals the price paid
by a Fund plus interest negotiated on the basis of current short-term rates
(which may be more or less than the rate on the securities underlying the
repurchase agreement). Default by a seller, if the Fund is delayed or prevented
from exercising its rights to dispose of the collateral securities, could expose
the Fund to possible loss, including the risk of a possible decline in the value
of the underlying securities during the period while the Fund seeks to assert
its rights thereto. Repurchase agreements are considered to be loans by the Fund
under the 1940 Act. The seller under a repurchase agreement will be required to
maintain the value of the securities subject to the agreement at not less than
the repurchase price (including accrued interest). Securities subject to
repurchase agreements will be held by the Fund's custodian or in the Federal
Reserve/Treasury book-entry system or another authorized securities depository.
    

   
         Reverse Repurchase Agreements and Borrowings. A Fund may borrow funds
for temporary purposes and not for leverage by agreeing to sell portfolio
securities to financial institutions such as banks and broker-dealers and to
repurchase them at a mutually agreed-upon date and price. At the time the Fund
enters into such an arrangement (a "reverse repurchase agreement"), it will
place in a segregated custodial account cash or liquid securities having a value
equal to the repurchase price (including accrued interest) and will subsequently
monitor the account to ensure that such equivalent value is maintained. Reverse
repurchase agreements involve the risk that the market value of the securities
sold by the Fund may decline below the repurchase price of those securities.
Reverse repurchase agreements are considered to be borrowings by the Fund under
the 1940 Act.
    


                                      -6-
<PAGE>   35

   
         Stand-By Commitment Agreements (Tax Free Fund only). The Fund may
acquire "stand-by commitments" with respect to Municipal Securities held in its
portfolio. Under a stand-by commitment, a dealer agrees to purchase at the
Fund's option specified Municipal Securities at a specified price. Stand-by
commitments acquired by the Fund may also be referred to as "put" options. The
Fund's right to exercise stand-by commitments is unconditional and unqualified.
A stand-by commitment is not transferable by the Fund, although the Fund can
sell the underlying securities to a third party at any time.
    

         The principal risk of a stand-by commitment is that the writer of a
commitment may default on its obligation to repurchase the securities acquired
with it. The Fund intends to enter into stand-by commitments only with brokers,
dealers and banks that, in the opinion of Warburg Pincus Asset Management, Inc.,
each Fund's investment adviser ("Warburg"), present minimal credit risks. In
evaluating the creditworthiness of the issuer of a stand-by commitment, Warburg
will periodically review relevant financial information concerning the issuer's
assets, liabilities and contingent claims.

         The amount payable to the Fund upon its exercise of a stand-by
commitment is normally (i) the Fund's acquisition cost of the Municipal
Securities (excluding any accrued interest which the Fund paid on their
acquisition), less any amortized market premium or plus any amortized market or
original issue discount during the period the Fund owned the securities, plus
(ii) all interest accrued on the securities since the last interest payment date
during that period.

         The Fund expects that stand-by commitments will generally be available
without the payment of any direct or indirect consideration. However, if
necessary or advisable, the Fund may pay for a stand-by commitment either
separately in cash or by paying a higher price for portfolio securities which
are acquired subject to the commitment (thus reducing the yield to maturity
otherwise available for the same securities). The total amount paid in either
manner for outstanding stand-by commitments held by the Fund will not exceed 1/2
of 1% of the value of its total assets calculated immediately after each
stand-by commitment is acquired.

         The Fund would acquire stand-by commitments solely to facilitate
portfolio liquidity and does not intend to exercise its rights thereunder for
trading purposes. The acquisition of a stand-by commitment would not affect the
valuation or assumed maturity of the underlying Municipal Securities which, as
noted, would continue to be valued in accordance with the amortized cost method.
Stand-by commitments acquired by the Fund would be valued at zero in determining
net asset value. Where the Fund paid any consideration directly or indirectly
for a stand-by commitment, its cost would be reflected as unrealized
depreciation for the period during which the commitment was held by the Fund.
Stand-by commitments would not affect the average weighted maturity of the
Fund's portfolio.

         The Internal Revenue Service has issued a revenue ruling to the effect
that a registered investment company will be treated for federal income tax
purposes as the owner of the Municipal Securities acquired subject to a stand-by
commitment and the interest on the Municipal Securities will be tax-exempt to
the Fund.


                                      -7-
<PAGE>   36

         Third Party Puts (Tax Free Fund only). The Fund may purchase long-term
fixed rate bonds that have been coupled with an option granted by a third party
financial institution allowing the Fund at specified intervals to tender (or
"put") the bonds to the institution and receive the face value thereof (plus
accrued interest). These third party puts are available in several different
forms, may be represented by custodial receipts or trust certificates and may be
combined with other features such as interest rate swaps. The Fund receives a
short-term rate of interest (which is periodically reset), and the interest rate
differential between that rate and the fixed rate on the bond is retained by the
financial institution. The financial institution granting the option does not
provide credit enhancement, and in the event that there is a default in the
payment of principal or interest, or downgrading of a bond to below investment
grade, or a loss of the bond's tax-exempt status, the put option will terminate
automatically, the risk to the Fund will be that of holding such a long-term
bond and the dollar-weighted average maturity of the Fund's portfolio would be
adversely affected.

         These bonds coupled with puts may present the same tax issues as are
associated with stand-by commitments. As with any stand-by commitment, the Fund
intends to take the position that it is the owner of any municipal obligation
acquired subject to a third party put, and that tax-exempt interest earned with
respect to such municipal obligations will be tax-exempt in its hands. There is
no assurance that the Internal Revenue Service will agree with such position in
any particular case. Additionally, the federal income tax treatment of certain
other aspects of these investments, including the treatment of tender fees and
swap payments, in relation to various regulated investment company tax
provisions is unclear. However, Warburg intends to manage the Fund in a manner
designed to minimize any adverse impact from these investments.

         Taxable Investments (Tax Free Fund only). Because the Fund's purpose is
to provide income excluded from gross income for federal income tax purposes,
the Fund generally will invest in taxable obligations only if and when the
investment adviser believes it would be in the best interests of the Fund's
investors to do so. Situations in which the Fund may invest up to 20% of its
total assets in taxable securities include: (i) pending investment of proceeds
of sales of Fund shares or the sale of its portfolio securities or (ii) when the
Fund requires highly liquid securities in order to meet anticipated redemptions.
The Fund may temporarily invest more than 20% of its total assets in taxable
securities to maintain a "defensive" posture when the Fund's investment adviser
determines that it is advisable to do so because of adverse market conditions
affecting the market for Municipal Securities generally.

         Among the taxable investments in which the Fund may invest are
repurchase agreements and time deposits maturing in not more than seven days.
The Fund may agree to purchase money market instruments from financial
institutions such as banks and broker-dealers subject to the seller's agreement
to repurchase them at an agreed-upon date and price ("repurchase agreements").
The seller under a repurchase agreement will be required to maintain the value
of the securities subject to the agreement at not less than the repurchase price
(including accrued interest). Securities subject to repurchase agreements will
be held by the Fund's custodian or in the Federal Reserve/Treasury book-entry
system or another authorized securities depository.


                                      -8-
<PAGE>   37

Other Investment Limitations

         Money Market Fund. The investment limitations numbered 1 through 6 may
not be changed without the affirmative vote of the holders of a majority of the
Money Market Fund's outstanding shares. Such majority is defined as the lesser
of (i) 67% or more of the shares present at a meeting, if the holders of more
than 50% of the outstanding shares of the Fund are present or represented by
proxy, or (ii) more than 50% of the outstanding shares. Investment limitations 7
and 12 may be changed by a vote of the Fund's Board of Directors (the "Board")
at any time.

         The Money Market Fund may not:

         1. Borrow money, issue senior securities or enter into reverse
repurchase agreements except for temporary or emergency purposes and not for
leveraging, and then in amounts not in excess of 10% of the value of the Fund's
assets at the time of such borrowing; or mortgage, pledge or hypothecate any
assets except in connection with any such borrowing and in amounts not in excess
of the lesser of the dollar amounts borrowed or 10% of the value of the Fund's
assets at the time of such borrowing. The Fund does not currently intend to
enter into reverse repurchase agreements in amounts in excess of 5% of its
assets at the time the agreement is entered into. Whenever borrowings exceed 5%
of the value of the Fund's total assets, the Fund will not make any additional
investments.

         2. Purchase or sell real estate, real estate investment trust
securities, commodities or commodity contracts, or invest in oil, gas or mineral
exploration or development programs, except that the Fund may purchase
commercial paper issued by companies that invest in real estate or interests
therein.

         3. Purchase the securities of any issuer if as a result more than 5% of
the value of the Fund's assets would be invested in the securities of such
issuer, except that this 5% limitation does not apply to securities issued or
guaranteed by the United States government, its agencies or instrumentalities,
and except that up to 25% of the value of the Fund's assets may be invested
without regard to this 5% limitation.

         4. Purchase any securities which would cause more than 25% of the value
of the Fund's total assets at the time of purchase to be invested in the
securities of issuers conducting their principal business activities in the same
industry; provided that there shall be no limit on the purchase of obligations
issued or guaranteed by the United States, any state, territory or possession of
the United States, the District of Columbia or any of their authorities,
agencies, instrumentalities or political sub-divisions or certificates of
deposit, time deposits, savings deposits and bankers' acceptances.

         5. Make loans except that the Fund may purchase or hold debt
obligations in accordance with its investment objective, policies and
limitations and enter into repurchase agreements.


                                      -9-
<PAGE>   38

         6. Underwrite any issue of securities except to the extent that the
purchase of debt obligations directly from the issuer thereof in accordance with
the Fund's investment objective, policies and limitations may be deemed to be
underwriting.

         7. Purchase securities on margin, make short sales of securities or
maintain a short position.

         8. Write or sell puts, calls, straddles, spreads or combinations
thereof.

         9. Invest in common stocks, preferred stocks, warrants, other equity
securities, corporate bonds or indentures, state bonds, municipal bonds or
industrial revenue bonds.

         10. Purchase securities of other investment companies except in
connection with a merger, consolidation, acquisition or reorganization.

         11. Invest more than 10% of the value of the Fund's net assets in
securities which may be illiquid because of legal or contractual restrictions on
resale or securities for which there are no readily available market quotations.
For purposes of this limitation, repurchase agreements with maturities greater
than seven days after notice by the Fund, variable rate master demand notes
providing for settlement upon maturities longer than seven days and savings
accounts which require more than seven days' notice prior to withdrawal shall be
considered illiquid securities.

         12. Invest in oil, gas or mineral leases.

         If a percentage restriction (other than the percentage limitation set
forth in No. 1 and No. 11 above) is adhered to at the time of an investment, a
later increase or decrease in the percentage of assets resulting from a change
in the values of portfolio securities or in the amount of the Fund's assets will
not constitute a violation of such restriction.

         Tax Free Fund. The investment limitations numbered 1 through 6 may not
be changed without the affirmative vote of the holders of a majority of the Tax
Free Fund's outstanding shares. Such majority is defined as the lesser of (i)
67% or more of the shares present at a meeting, if the holders of more than 50%
of the outstanding shares of the Fund are present or represented by proxy, or
(ii) more than 50% of the outstanding shares. Investment limitations 7 and 11
may be changed by a vote of the Fund's Board of Directors at any time.

         The Tax Free Fund may not:

         1. Invest less than 80% of its assets in securities the interest on
which is exempt from federal income tax, except during temporary defensive
periods or under unusual market conditions, as determined by the Fund's
investment adviser.

         2. Borrow money, issue senior securities or enter into reverse
repurchase agreements except for temporary or emergency purposes, and not for
leveraging, and then in


                                      -10-
<PAGE>   39

amounts not in excess of 10% of the value of the Fund's assets at the time of
such borrowing; or mortgage, pledge or hypothecate any assets except in
connection with any such borrowing and in amounts not in excess of the lesser of
the dollar amounts borrowed or 10% of the value of the Fund's assets at the time
of such borrowing. The Fund does not currently intend to enter into reverse
repurchase agreements in amounts in excess of 5% of its assets at the time the
agreement is entered into. Whenever borrowings exceed 5% of the value of the
Fund's total assets, the Fund will not make any additional investments.

         3. Purchase any securities which would cause more than 25% of the value
of the Fund's total assets at the time of purchase to be invested in the
securities of issuers conducting their principal business activities in the same
industry; provided that there shall be no limit on the purchase of (i)
obligations issued by the United States, any state, territory or possession of
the United States, the District of Columbia or any of their authorities,
agencies, instrumentalities or political sub-divisions, (ii) certificates of
deposit issued by United States branches of United States banks or (iii)
Municipal Securities the interest on which is paid solely from revenues of
economically related projects. For purposes of this restriction, private
activity securities ultimately payable by companies within the same industry are
treated as if they were issued by issuers in the same industry.

         4. Make loans except that the Fund may purchase or hold debt
obligations and enter into repurchase agreements in accordance with its
investment objective, policies and limitations.

         5. Underwrite any issue of securities except to the extent that the
purchase of debt obligations directly from the issuer thereof in accordance with
the Fund's investment objective, policies and limitations may be deemed to be
underwriting.

         6. Purchase or sell real estate, real estate investment trust
securities, commodities or commodity contracts, or invest in oil, gas or mineral
exploration or development programs, except that the Fund may invest in debt
obligations secured by real estate, mortgages or interests therein.

         7. Purchase securities on margin, make short sales of securities or
maintain short positions.

         8. Write or sell puts, calls, straddles, spreads or combinations
thereof, except that the Fund may acquire stand-by commitments.

         9. Purchase securities of other investment companies except in
connection with a merger, consolidation, acquisition or reorganization.

         10. Invest more than 10% of the value of the Fund's net assets in
securities which may be illiquid because of legal or contractual restrictions on
resale or securities for which there are not readily available market
quotations. For purposes of this limitation, repurchase agreements with
maturities greater than seven days and variable rate master demand


                                      -11-
<PAGE>   40

notes providing for settlement upon more than seven days notice by the Fund and
time deposits maturing in more than seven calendar days shall be considered
illiquid securities.

         11. Invest in oil, gas or mineral leases.

         If a percentage restriction (other than the percentage limitation set
forth in No. 2 and No. 10 above) is adhered to at the time of an investment, a
later increase or decrease in the percentage of assets resulting from a change
in the values of portfolio securities or in the amount of the Fund's assets will
not constitute a violation of such restriction.

   
                               PORTFOLIO VALUATION
    

         Each Fund's securities are valued on the basis of amortized cost. Under
this method, a Fund values a portfolio security at cost on the date of purchase
and thereafter assumes a constant value of the security for purposes of
determining net asset value, which normally does not change in response to
fluctuating interest rates. Although the amortized cost method seems to provide
certainty in portfolio valuation, it may result in periods during which values,
as determined by amortized cost, are higher or lower than the amount the Fund
would receive if it sold the securities. In connection with amortized cost
valuation, the Board has established procedures that are intended to stabilize
the Fund's net asset value per share for purposes of sales and redemptions at
$1.00. These procedures include review by the Board, at such intervals as it
deems appropriate, to determine the extent, if any, to which the Fund's net
asset value per share calculated by using available market quotations deviates
from $1.00 per share. In the event such deviation exceeds 1/2 of 1%, the Board
will promptly consider what action, if any, should be initiated. If the Board
believes that the amount of any deviations from the Fund's $1.00 amortized cost
price per share may result in material dilution or other unfair results to
investors or existing shareholders, it will take such steps as it considers
appropriate to eliminate or reduce to the extent reasonably practicable any such
dilution or unfair results. These steps may include selling portfolio
instruments prior to maturity; shortening the Fund's average portfolio maturity;
withholding or reducing dividends; redeeming shares in kind; reducing the number
of the Fund's outstanding shares without monetary consideration; or utilizing a
net asset value per share determined by using available market quotations.

   
                             PORTFOLIO TRANSACTIONS
    

         Warburg is responsible for establishing, reviewing, and, where
necessary, modifying a Fund's investment program to achieve its investment
objective. BlackRock Institutional Management Corporation ("BIMC") generally
will select specific portfolio investments and effect transactions for each
Fund. Purchases and sales of portfolio securities are usually principal
transactions without brokerage commissions effected directly with the issuer or
with dealers who specialize in money market instruments. BIMC seeks to obtain
the best net price and the most favorable execution of orders. To the extent
that the execution and price offered by more than one dealer are comparable,
BIMC may, in its discretion, effect


                                      -12-
<PAGE>   41

transactions in portfolio securities with dealers who provide the relevant Fund
with research advice or other services.

         Investment decisions for a Fund concerning specific portfolio
securities are made independently from those for other clients advised by BIMC.
Such other investment clients may invest in the same securities as the Fund.
When purchases or sales of the same security are made at substantially the same
time on behalf of such other clients, transactions are averaged as to price, and
available investments allocated as to amount, in a manner which BIMC believes to
be equitable to each client, including the Fund. In some instances, this
investment procedure may adversely affect the price paid or received by the Fund
or the size of the position obtained or sold for the Fund. To the extent
permitted by law, BIMC may aggregate the securities to be sold or purchased for
each Fund with those to be sold or purchased for such other investment clients
in order to obtain best execution.

   
         In no instance will portfolio securities be purchased from or sold to
Warburg, BIMC, PNC Bank, National Association ("PNC") or Counsellors Securities
Inc. ("Counsellors Securities") or any affiliated person of such companies,
except pursuant to an exemption received from the SEC.
    

         The Tax Free Fund may participate, if and when practicable, in bidding
for the purchase of Municipal Securities directly from an issuer for its
portfolio in order to take advantage of the lower purchase price available to
members of such a group. The Fund will engage in this practice, however, only
when Warburg or BIMC, in their sole discretion, believes such practice to be
otherwise in the Fund's interest.

         Each Fund does not intend to seek profits through short-term trading. A
Fund's annual portfolio turnover will be relatively high but is not expected to
have a material effect on its net income. Each Fund's turnover is expected to be
zero for regulatory reporting purposes.


                                      -13-
<PAGE>   42

                             MANAGEMENT OF THE FUNDS

Officers and Board of Directors

                  The names (and ages) of the Fund's Directors and officers,
their addresses, present positions and principal occupations during the past
five years and other affiliations are set forth below.

   
Richard N. Cooper* (64) ...........................    Director
Harvard University                                     Professor at Harvard
1737 Cambridge Street                                  University; National
Cambridge, Massachusetts  02138                        Intelligence Council from
                                                       June 1995 until January
                                                       1997; Director or Trustee
                                                       of Circuit City Stores,
                                                       Inc. (retail electronics
                                                       and appliances) and
                                                       Phoenix Home Life
                                                       Insurance Company;
                                                       Director/Trustee of other
                                                       investment companies in
                                                       the Warburg Pincus family
                                                       of funds.
    

   
Jack W. Fritz (71).................................    Director
2425 North Fish Creek Road                             Private investor;
P.O. Box 483                                           Consultant and Director
Wilson, Wyoming  83014                                 of Fritz Broadcasting,
                                                       Inc. and Fritz
                                                       Communications
                                                       (developers and operators
                                                       of radio stations);
                                                       Director of Advo, Inc.
                                                       (direct mail
                                                       advertising);
                                                       Director/Trustee of other
                                                       investment companies in
                                                       the Warburg Pincus family
                                                       of funds.
    

   
John L. Furth* (67)................................    Chairman of the Board
466 Lexington Avenue                                   Vice Chairman, Managing
New York, New York  10017-3147                         Director and Director of
                                                       Warburg; Associated with
                                                       Warburg since 1970;
                                                       Director of Counsellors
                                                       Securities; Chairman of
                                                       the Board of other
                                                       investment companies in
                                                       the Warburg Pincus family
                                                       of funds.
    


   
Jeffrey E. Garten (51).............................    Director
Box 208200                                             Dean of Yale School of
New Haven, Connecticut  06520-8200                     Management and William S.
                                                       Beinecke Professor in the
                                                       Practice of International
                                                       Trade and Finance;
                                                       Undersecretary of
                                                       Commerce for
                                                       International Trade from
                                                       November 1993 to October
                                                       1995; Professor at
                                                       Columbia University from
                                                       September 1992 to
                                                       November 1993;
                                                       Director/Trustee of other
                                                       investment companies in
                                                       the Warburg Pincus family
                                                       of funds.
    

* Indicates a Director who is an "interested person" of the Fund as defined in
the 1940 Act.


                                      -14-
<PAGE>   43

   
Thomas A. Melfe (66)...............................    Director
30 Rockefeller Plaza                                   Partner in the law firm
New York, New York 10112                               of Piper & Marbury
                                                       L.L.P.; Partner in the
                                                       law firm of Donovan
                                                       Leisure Newton & Irvine
                                                       from April 1984 to April
                                                       1998; Chairman of the
                                                       Board, Municipal Fund for
                                                       New York Investors, Inc.;
                                                       Director/Trustee of other
                                                       investment companies in
                                                       the Warburg Pincus family
                                                       of funds.
    

   
Arnold M. Reichman* (50)...........................    Director
466 Lexington Avenue                                   Managing Director, Chief
New York, New York  10017-3147                         Operating Officer and
                                                       Assistant Secretary of
                                                       Warburg; Director of The
                                                       RBB Fund, Inc.;
                                                       Associated with Warburg
                                                       since 1984; Director and
                                                       officer of Counsellors
                                                       Securities;
                                                       Director/Trustee of other
                                                       investment companies in
                                                       the Warburg Pincus family
                                                       of funds.
    

   
Alexander B. Trowbridge (68).......................    Director
1317 F Street, N.W., 5th Floor                         President of Trowbridge
Washington, DC  20004                                  Partners, Inc. (business
                                                       consulting) from January
                                                       1990 to November 1996;
                                                       Director or Trustee of
                                                       New England Mutual Life
                                                       Insurance Co., ICOS
                                                       Corporation
                                                       (biopharmaceuticals),
                                                       Waste Management, Inc.
                                                       (solid and hazardous
                                                       waste collection and
                                                       disposal), IRI
                                                       International (energy
                                                       services), The Rouse
                                                       Company (real estate
                                                       development), Harris
                                                       Corp. (electronics and
                                                       communications
                                                       equipment), The Gillette
                                                       Co. (personal care
                                                       products) and Sun Company
                                                       Inc. (petroleum refining
                                                       and marketing);
                                                       Director/Trustee of other
                                                       investment companies in
                                                       the Warburg Pincus family
                                                       of funds.
    

   
Eugene L. Podsiadlo (41)...........................    President
466 Lexington Avenue                                   Managing Director of
New York  10017-3147                                   Warburg; Associated with
                                                       Warburg since 1991; Vice
                                                       President of Citibank,
                                                       N.A. from 1987-1991;
                                                       Officer of Counsellors
                                                       Securities and other
                                                       investment companies in
                                                       the Warburg Pincus family
                                                       of funds.
    


                                      -15-
<PAGE>   44

   
Steven B. Plump (40)...............................    Executive Vice President
466 Lexington Avenue                                   Senior Vice President of
New York, New York 10017-3147                          Warburg; Associated with
                                                       Warburg since 1995;
                                                       Associated with Chemical
                                                       Investment Services and
                                                       its affiliates from 1993
                                                       until 1995. Officer of
                                                       Counsellors Securities
                                                       and other investment
                                                       companies in the Warburg
                                                       Pincus family of funds.
    

   
Stephen Distler (45)...............................    Vice President
466 Lexington Avenue                                   Managing Director of
New York, New York  10017-3147                         Warburg; Associated with
                                                       Warburg since 1984;
                                                       Treasurer of Counsellors
                                                       Securities; Officer of
                                                       other investment
                                                       companies in the Warburg
                                                       Pincus family of funds.
    

   
Janna Manes, Esq. (31).............................    Vice President
466 Lexington Avenue                                   and Secretary
New York, New York 10017-3147                          Vice President of
                                                       Warburg; Associated with
                                                       Warburg since 1996;
                                                       Associated with the law
                                                       firm of Willkie Farr &
                                                       Gallagher from 1993 to
                                                       1996; Officer of other
                                                       investment companies in
                                                       the Warburg Pincus family
                                                       of funds.
    

   
Howard Conroy, CPA (44)............................    Vice President and Chief
466 Lexington Avenue                                   Financial Officer
New York, New York  10017-3147                         Vice President of
                                                       Warburg; Associated with
                                                       Warburg since 1992;
                                                       Officer of other
                                                       investment companies in
                                                       the Warburg Pincus family
                                                       of funds.
    

   
Daniel S. Madden, CPA (32).........................    Treasurer and Chief
466 Lexington Avenue                                   Accounting Officer
New York, New York 10017-3147                          Vice President of
                                                       Warburg; Associated with
                                                       Warburg since 1995;
                                                       Associated with BlackRock
                                                       Financial Management,
                                                       Inc. from September 1994
                                                       to October 1995;
                                                       Associated with BEA
                                                       Associates from April
                                                       1993 to September 1994;
                                                       Associated with Ernst &
                                                       Young LLP from 1990 to
                                                       1993; Officer of other
                                                       investment companies in
                                                       the Warburg Pincus family
                                                       of funds.
    

   
Stuart J. Cohen, Esq. (30).........................    Assistant Secretary
466 Lexington Avenue                                   Vice President of
New York, New York 10017-3147                          Warburg; Associated with
                                                       Warburg since 1997;
                                                       Associated with the law
                                                       firm of Gordon Altman
                                                       Butowsky Weitzen Shalov &
                                                       Wein from 1995 to 1997;
                                                       Officer of other
                                                       investment companies in
                                                       the Warburg Pincus family
                                                       of funds.
    


                                      -16-
<PAGE>   45

         No employee of Warburg, BIMC, PNC or PFPC Inc., the Fund's
co-administrator ("PFPC"), or any of their affiliates receives any compensation
from the Fund for acting as an officer or Director of the Fund. Each Director
who is not a director, officer or employee of Warburg, PFPC or any of their
affiliates receives an annual fee of $500, and $250 for each meeting of the
Board attended by him for his services as Director and is reimbursed for
expenses incurred in connection with his attendance at Board meetings. Each
member of the Audit Committee receives an annual fee of $250, and the chairman
of the Audit Committee receives an annual fee of $325.

   
Directors' Total Compensation
(for the fiscal period ended December 31, 1998)
    

<TABLE>
<CAPTION>
                                                                                   Total Compensation from
                                                      Compensation from            all Investment Companies
Name of Director                                          each Fund                  Managed by Warburg*
- ----------------                                          ---------                  ------------------ 
<S>                                                   <C>                          <C>
John L. Furth                                             None**                            None**
Richard N. Cooper                                         $1,750                           $73,250
Jack W. Fritz                                             $1,750                           $73,250
Jeffrey E. Garten                                         $1,750                           $73,250
Arnold M. Reichman                                        None**                            None**
Thomas A. Melfe                                           $1,750                           $73,250
Alexander B. Trowbridge                                   $1,825                           $76,025
</TABLE>

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

   
*        Each Director also serves as a Director or Trustee of 39 investment
         companies in the Warburg Pincus family of funds except for Mr. Melfe,
         who serves as a Director/Trustee of 22 investment companies in the
         Warburg Pincus family of funds.
    

**       Mr. Furth and Mr. Reichman receive compensation as affiliates of
         Warburg, and, accordingly, receive no compensation from a Fund or any
         other investment company advised by Warburg.

   
         [As of April 1, 1999, Directors and officers of a Fund as a group owned
of record less than 1% of the relevant Fund's outstanding common stock.]
    

Investment Advisers, Sub-Investment Adviser and Administrator
and Co-Administrator

   
         Warburg serves as investment adviser to the Money Market Fund and Tax
Free Fund, BIMC serves as sub-investment adviser to each Fund, and Credit Suisse
Asset Management Ltd. ("Credit Suisse") and PFPC Inc. ("PFPC") serve as
co-administrators to the Funds pursuant to written agreements (the "Advisory
Agreement," the "Sub-Advisory Agreements" and the "Co-Administration Agreement,"
respectively, and collectively, the "Agreements").
    


                                      -17-
<PAGE>   46

   
         For the services provided pursuant to the Advisory Agreement, Warburg
is entitled to receive a fee, computed daily and payable monthly, at the annual
rate of .40% of the value of each Fund's average daily net assets, out of which
Warburg pays BIMC for sub-investment advisory services. Warburg, BIMC and each
Fund's administrators may voluntarily waive a portion of their fees from time to
time and temporarily limit the expenses to be paid by a Fund.
    

   
         As sub-investment adviser, BIMC has agreed to implement each Fund's
investment program as determined by the Board and Warburg. BIMC will supervise
the day-to-day operations of the relevant Fund and perform the following
services: (i) providing investment research and credit analysis concerning the
Fund's investments, (ii) placing orders for all purchases and sales of the
Fund's portfolio investments and (iii) maintaining the books and records
required to support the Fund's operations. BIMC also calculates the Fund's net
asset value, provides accounting services for the Fund and assists in related
aspects of the Fund's operations.
    

   
         The Funds employ Credit Suisse, a wholly-owned subsidiary of Credit
Suisse Group, as a co-administrator. As co-administrator, CSAM provides
shareholder liaison services to the Fund including responding to shareholder
inquiries and providing information on shareholder investments. CSAM also
performs a variety of other services, including furnishing certain executive and
administrative services, acting as liaison between a Fund and its various
service providers, furnishing corporate secretarial services, which include
preparing materials for meetings of the Board, assisting in the preparation of
proxy statements, annual and semiannual reports, tax returns and monitoring and
developing compliance procedures for the Fund. As compensation, each Fund pays
to CSAM a fee calculated at an annual rate of .10% of the Fund's average daily
net assets, exclusive of out-of-pocket expenses. CSAM may delegate to
Counsellors Funds Service, Inc., a wholly-owned subsidiary of Warburg,
responsibility for most of its co-administrative services. CSAM's principal
offices are located at Beaufort House, 15 St. Botolph Street, GB-London EC3A
7JJ.
    

   
         The Funds also employ PFPC, an indirect, wholly owned subsidiary of PNC
Bank Corp., as a co-administrator. As a co-administrator, PFPC calculates a
Fund's net asset value, provides all accounting services for the Fund and
assists in related aspects of the Fund's operations. As compensation, the Fund
pays to PFPC a fee calculated at an annual rate of .10% of the Fund's first $500
million in average daily net assets, .075% of the next $1 billion in average
daily net assets, and .05% of average daily net assets over $1.5 billion,
subject to a minimum annual fee and exclusive of out-of-pocket expenses. PFPC
has its principal offices at 400 Bellevue Parkway, Wilmington, Delaware 19809.
    


                                      -18-
<PAGE>   47

   
MONEY MARKET FUND
Advisory and Sub-Advisory Fees paid to each of Warburg and BIMC
    

   
        2-month period ended
          December 31, 1998
    

   
Regarding the aggregate amounts waived and for the same period, Warburg
voluntarily waived $______, and BIMC voluntarily waived $______.
    

   
Administrative Services/Co-Administration Fees paid to Credit Suisse
    

   
        2-month period ended
          December 31, 1998
    

   
Administrative Services/Co-Administration Fees paid to PFPC
    

   
        2-month period ended
          December 31, 1998
    

   
TAX FREE FUND
    

   
Advisory and Sub-Advisory Fees paid to each of Warburg and BIMC
    

   
        2-month period ended
          December 31, 1998
    

   
Regarding the aggregate amounts waived and for the same period, Warburg
voluntarily waived $______, and BIMC voluntarily waived $______.
    

   
Administrative Services/Co-Administration Fees paid to Credit Suisse
    

   
        2-month period ended
          December 31, 1998
    

   
Administrative Services/Co-Administration Fees paid to PFPC
    

   
        2-month period ended
          December 31, 1998
    


                                      -19-
<PAGE>   48

Banking Laws

         Banking laws and regulations presently (i) prohibit a bank holding
company registered under the Federal Bank Holding Company Act of 1956 (the
"Holding Company Act") or any bank or non-bank affiliate thereof from
sponsoring, organizing, controlling, or distributing the shares of a registered,
open-end investment company continuously engaged in the issuance of its shares,
but (ii) do not prohibit such a holding company or affiliate from acting as
investment adviser, transfer agent or custodian to such an investment company.
PNC and BIMC are subject to such banking laws and regulations.

         BIMC, PNC and the Funds have been advised by Messrs. Ballard, Spahr,
Andrews & Ingersoll that BIMC and PNC may perform the services for the Fund
contemplated by their respective agreements with the Fund and the Prospectus
without violation of applicable banking laws or regulations. Such counsel have
pointed out, however, that future changes in legal requirements relating to the
permissible activities of banks and their affiliates, as well as future
interpretations of present requirements, could prevent one or more of them from
continuing to perform services for the Fund. If BIMC or PNC were prohibited from
providing services to the Fund, the Board would select another qualified firm.
Any new investment or sub-investment advisory agreement would be subject to
shareholder approval.

Custodian and Transfer Agent

         PNC is custodian of each Fund's assets pursuant to a custodian
agreement (the "Custodian Agreement"). Under the Custodian Agreement, PNC (i)
maintains a separate account or accounts in the name of the Fund, (ii) holds and
transfers portfolio securities on account of the Fund, (iii) makes receipts and
disbursements of money on behalf of the Fund, (iv) collects and receives all
income and other payments and distributions on account of the Fund's portfolio
securities and (v) makes periodic reports to the Board concerning the Fund's
custodial arrangements. PNC is authorized to select one or more banks or trust
companies to serve as sub-custodian on behalf of a Fund, provided that PNC
remains responsible for the performance of all its duties under the Custodian
Agreement and holds the Fund harmless from the acts and omissions of any
sub-custodian. PNC is an indirect wholly owned subsidiary of PNC Bank Corp., and
its principal business address is 1600 Market Street, Philadelphia, Pennsylvania
19103.

         State Street Bank and Trust Company ("State Street") has agreed to
serve as each Fund's shareholder servicing, transfer and dividend disbursing
agent pursuant to a Transfer Agency and Service Agreement, under which State
Street (i) issues and redeems shares of the Fund, (ii) addresses and mails all
communications by the Fund to record owners of the Fund shares, including
reports to shareholders, dividend and distribution notices and proxy material
for its meetings of shareholders, (iii) maintains shareholder accounts and, if
requested, sub-accounts, and (iv) makes periodic reports to the Board concerning
the transfer agent's operations with respect to the Fund. State Street has
delegated to Boston Financial Data Services, Inc. ("BFDS"), an affiliated
company, responsibility for most shareholder servicing functions. The principal
business address of State Street is 225 Franklin Street,


                                      -20-
<PAGE>   49

Boston, Massachusetts 02110. BFDS's principal business address is 2 Heritage
Drive, Boston, Massachusetts 02171.

Organization of the Funds

   
         The Money Market Fund and the Tax Free Fund were incorporated on July
24, 1998 under the laws of the State of Maryland as "Warburg, Pincus Money
Market Fund, Inc." and "Warburg, Pincus Tax Free Money Market Fund, Inc.,"
respectively. On September __, 1998, the Money Market Fund and the Tax Free Fund
amended their respective charters and changed the Funds' names to "Warburg,
Pincus WorldPerks Money Market Fund, Inc." and "Warburg, Pincus WorldPerks Tax
Free Money Market Fund, Inc.", respectively. Each Fund's charter authorizes the
Board to issue three billion full and fractional shares of capital stock, $.001
par value per share, of which two billion shares are designated Advisor Shares.
Under a Fund's charter documents, the Board has the power to classify or
reclassify any unissued shares of the Fund into one or more additional classes
by setting or changing in any one or more respects their relative rights, voting
powers, restrictions, limitations as to dividends, qualifications and terms and
conditions of redemption. The Board may similarly classify or reclassify any
class of shares into one or more series and, without shareholder approval, may
increase the number of authorized shares of the Fund. All shareholders of a
Fund, upon liquidation, will participate ratably in the Fund's net assets.
    

   
         Multi-Class Structure. Although neither Fund currently does so, each
Fund is authorized to offer a separate class of shares, the Advisor Shares,
pursuant to a separate prospectus. Individual investors could only purchase
Advisor Shares through institutional shareholders of record, broker-dealers,
financial institutions, depository institutions, retirement plans and other
financial intermediaries. Shares of each class would represent equal pro rata
interests in the relevant Fund and accrue dividends and calculate net asset
value and performance quotations in the same manner. Because of the higher fees
paid by the Advisor Shares, the total return on such shares can be expected to
be lower than the total return on common shares.
    

   
         Voting Rights. Investors in a Fund are entitled to one vote for each
full share held and fractional votes for fractional shares held. Shareholders of
a Fund will vote in the aggregate except where otherwise required by law and
except that each class will vote separately on certain matters pertaining to its
distribution and shareholder servicing arrangements. There will normally be no
meetings of investors for the purpose of electing members of the Board unless
and until such time as less than a majority of the members holding office have
been elected by investors. Any Director of a Fund may be removed from office
upon the vote of shareholders holding at least a majority of the relevant Fund's
outstanding shares at a meeting called for that purpose. A meeting will be
called for the purpose of voting on the removal of a Board member at the written
request of holders of 10% of the outstanding shares of the Fund. Shares do not
have cumulative voting rights, which means that holders of more than 50% of the
shares voting for
    


                                      -21-
<PAGE>   50

the election of Directors can elect all Directors. Shares are transferable but
have no preemptive, conversion or subscription rights.

Distribution and Shareholder Servicing

         Common Shares. Each Fund has entered into a Shareholder Servicing and
Distribution Plan (the "12b-1 Plan"), pursuant to Rule 12b-1 under the 1940 Act,
pursuant to which a Fund will pay Counsellors Securities, in consideration for
Services (as defined below), a fee calculated at an annual rate of .25% of the
average daily net assets of the Common Shares of the Fund. Services performed by
Counsellors Securities include (i) the sale of the Common Shares, as set forth
in the 12b-1 Plan ("Selling Services"), (ii) ongoing servicing and/or
maintenance of the accounts of Common Shareholders of the Fund, as set forth in
the 12b-1 Plan ("Shareholder Services"), and (iii) sub-transfer agency services,
subaccounting services or administrative services related to the sale of the
Common Shares, as set forth in the 12b-1 Plan ("Administrative Services" and
collectively with Selling Services and Administrative Services, "Services")
including, without limitation, (a) payments reflecting an allocation of overhead
and other office expenses of Counsellors Securities related to providing
Services; (b) payments made to, and reimbursement of expenses of, persons who
provide support services in connection with the distribution of the Common
Shares including, but not limited to, office space and equipment, telephone
facilities, answering routine inquiries regarding the Fund, and providing any
other Shareholder Services; (c) payments made to compensate selected dealers or
other authorized persons for providing any Services; (d) costs relating to the
formulation and implementation of marketing and promotional activities for the
Common Shares, including, but not limited to, direct mail promotions and
television, radio, newspaper, magazine and other mass media advertising, and
related travel and entertainment expenses; (e) costs of printing and
distributing prospectuses, statements of additional information and reports of
the Fund to prospective shareholders of the Fund; (f) costs involved in
obtaining whatever information, analyses and reports with respect to marketing
and promotional activities that the Fund may, from time to time, deem advisable;
and (g) costs and expenses relating to the Fund's participation in the Northwest
Airlines WorldPerks(TM) program.

         Pursuant to the 12b-1 Plan, Counsellors Securities will provide the
Fund's Board with periodic reports of amounts expended under the 12b-1 Plan and
the purpose for which the expenditures were made.

         Advisor Shares. Each Fund may, in the future, enter into agreements
("Agreements") with institutional shareholders of record, broker-dealers,
financial institutions, depository institutions, retirement plans and financial
intermediaries ("Institutions") to provide certain distribution, shareholder
servicing, administrative and/or accounting services for their clients or
customers (or participants in the case of retirement plans) ("Customers") who
are beneficial owners of Advisor Shares. Agreements will be governed by a
distribution plan (the "Distribution Plan") pursuant to Rule 12b-1 under the
1940 Act. The Distribution Plan requires the Board, at least quarterly, to
receive and review written reports of amounts expended under the Distribution
Plan and the purpose for which such expenditures were made.


                                      -22-
<PAGE>   51

         An Institution with which a Fund has entered into an Agreement with
respect to its Advisor Shares may charge a Customer one or more of the following
types of fees, as agreed upon by the Institution and the Customer, with respect
to the cash management or other services provided by the Institution: (i)
account fees (a fixed amount per month or per year); (ii) transaction fees (a
fixed amount per transaction processed); (iii) compensation balance requirements
(a minimum dollar amount a Customer must maintain in order to obtain the
services offered); or (iv) account maintenance fees (a periodic charge based
upon the percentage of assets in the account or of the dividend paid on those
assets). Services provided by an Institution to Customers are in addition to,
and not duplicative of, the services to be provided under the Fund's
co-administration and distribution and shareholder servicing arrangements. A
Customer of an Institution should read the Prospectus and this Statement of
Additional Information in conjunction with the Agreement and other literature
describing the services and related fees that would be provided by the
Institution to its Customers prior to any purchase of Fund shares. Prospectuses
are available from the Fund's distributor upon request. No preference will be
shown in the selection of Fund investments for the instruments of Institutions.

         General. The Distribution Plan and the 12b-1 Plan will continue in
effect for so long as their continuance is specifically approved at least
annually by the Board, including a majority of the Directors who are not
interested persons of the Fund and who have no direct or indirect financial
interest in the operation of the Distribution Plans or the 12b-1 Plans, as the
case may be ("Independent Directors"). Any material amendment of the
Distribution Plan or 12b-1 Plan would require the approval of the Board in the
same manner. Neither the Distribution Plan nor the 12b-1 Plan may be amended to
increase materially the amount to be spent thereunder without shareholder
approval of the relevant class of shares. The Distribution Plan or 12b-1 Plan
may be terminated at any time, without penalty, by vote of a majority of the
Independent Directors or by a vote of a majority of the outstanding voting
securities of the relevant class of shares of the Fund.

                 ADDITIONAL PURCHASE AND REDEMPTION INFORMATION

   
         Information on how to purchase and redeem Fund shares and how such
shares are priced is included in the Shareholder Guide.
    

         Under the 1940 Act, each Fund may suspend the right of redemption or
postpone the date of payment upon redemption for any period during which The New
York Stock Exchange, Inc. (the "NYSE") is closed, other than customary weekend
and holiday closings, or during which trading on the NYSE is restricted, or
during which (as determined by the SEC by rule or regulation) an emergency
exists as a result of which disposal or fair valuation of portfolio securities
is not reasonably practicable, or for such other periods as the SEC may permit.
(A Fund may also suspend or postpone the recordation of an exchange of its
shares upon the occurrence of any of the foregoing conditions.)

         If the Board determines that conditions exist which make payment of
redemption proceeds wholly in cash unwise or undesirable, a Fund may make
payment wholly


                                      -23-
<PAGE>   52

or partly in securities or other investment instruments which may not constitute
securities as such term is defined in the applicable securities laws. If a
redemption is paid wholly or partly in securities or other property, a
shareholder would incur transaction costs in disposing of the redemption
proceeds. The Fund will comply with Rule 18f-1 promulgated under the 1940 Act
with respect to redemptions in kind.

         Automatic Cash Withdrawal Plan. An automatic cash withdrawal plan (the
"Plan") is available to shareholders who wish to receive specific amounts of
cash periodically. Withdrawals may be made under the Plan by redeeming as many
shares of a Fund as may be necessary to cover the stipulated withdrawal payment.
To the extent that withdrawals exceed dividends, distributions and appreciation
of a shareholder's investment in the Fund, there will be a reduction in the
value of the shareholder's investment and continued withdrawal payments may
reduce the shareholder's investment and ultimately exhaust it. Withdrawal
payments should not be considered as income from investment in the Fund. All
dividends and distributions on shares in the Plan are automatically reinvested
at net asset value in additional shares of the Fund.

                               EXCHANGE PRIVILEGE

         An exchange privilege with certain other funds advised by Warburg is
available to investors in a Fund. The funds into which exchanges of Common
Shares currently can be made are listed in the Common Share Prospectus.
Exchanges may also be made between certain Warburg Pincus Advisor Funds.

         The exchange privilege enables shareholders to acquire shares in a fund
with a different investment objective when they believe that a shift between
funds is an appropriate investment decision. Subject to the restrictions on
exchange purchases contained in the Prospectus and any other applicable
restrictions, this privilege is available to shareholders residing in any state
in which the Common Shares or Advisor Shares being acquired, as relevant, may
legally be sold. Prior to any exchange, the investor should obtain and review a
copy of the current prospectus of the relevant class of each fund into which an
exchange is being considered. Shareholders may obtain a prospectus of the
relevant class of the fund into which they are contemplating an exchange from
Counsellors Securities.

         Subject to the restrictions described above, upon receipt of proper
instructions and all necessary supporting documents, shares submitted for
exchange are redeemed at the then-current net asset value of the relevant class
and the proceeds are invested on the same day, at a price as described above, in
shares of the relevant class of the fund being acquired. The exchange privilege
may be modified or terminated at any time upon 30 days' notice to shareholders.

                     ADDITIONAL INFORMATION CONCERNING TAXES

         The discussion set out below of tax considerations generally affecting
the Fund and its shareholders is intended to be only a summary and is not
intended as a substitute for careful tax planning by prospective shareholders.
Shareholders are advised to consult their


                                      -24-
<PAGE>   53

own tax advisers with respect to the particular tax consequences to them of an
investment in the Fund.

         As described above and in the Fund's Prospectus, the Tax Free Fund is
designed to provide investors with current income which is excluded from gross
income for federal income tax purposes. The Fund is not intended to constitute a
balanced investment program and is not designed for investors seeking capital
gains or maximum tax-exempt income irrespective of fluctuations in principal.
Investment in the Fund would not be suitable for tax-exempt institutions,
individual retirement plans, employee benefit plans and individual retirement
accounts since such investors would not gain any additional tax benefit from the
receipt of tax-exempt income.

         Each Fund intends to continue to qualify as a "regulated investment
company" under Subchapter M of the Internal Revenue Code of 1986, as amended
(the "Code"). If it qualifies as a regulated investment company, a Fund will pay
no federal income taxes on its taxable net investment income (that is, taxable
income other than net realized capital gains) and its net realized capital gains
that are distributed to shareholders. To qualify under Subchapter M, each Fund
must, among other things: (i) distribute to its shareholders at least the sum of
90% of its taxable net investment income (for this purpose consisting of taxable
net investment income and net realized short-term capital gains) plus 90% of its
net tax-exempt interest income; (ii) derive at least 90% of its gross income
from dividends, interest, payments with respect to loans of securities, gains
from the sale or other disposition of securities, or other income (including,
but not limited to, gains from options, futures, and forward contracts) derived
with respect to the Fund's business of investing in securities; and (iii)
diversify its holdings so that, at the end of each fiscal quarter of the Fund
(a) at least 50% of the market value of the Fund's assets is represented by
cash, U.S. government securities and other securities, with those other
securities limited, with respect to any one issuer, to an amount no greater in
value than 5% of the Fund's total assets and to not more than 10% of the
outstanding voting securities of the issuer, and (b) not more than 25% of the
market value of the Fund's assets is invested in the securities of any one
issuer (other than U.S. government securities or securities of other regulated
investment companies) or of two or more issuers that the Fund controls and that
are determined to be in the same or similar trades or businesses or related
trades or businesses. As a regulated investment company, the Fund will be
subject to a 4% non-deductible excise tax measured with respect to certain
undistributed amounts of ordinary income and capital gain required to be but not
distributed under a prescribed formula. The formula requires payment to
shareholders during a calendar year of distributions representing at least 98%
of the Fund's taxable ordinary income for the calendar year and at least 98% of
the excess of its capital gains over capital losses realized during the one-year
period ending December 31 during such year, together with any undistributed,
untaxed amounts of ordinary income and capital gains from the previous calendar
year. The Funds expect to pay the dividends and make the distributions necessary
to avoid the application of this excise tax.

         Although each Fund expects to be relieved of all or substantially all
federal income taxes, depending upon the extent of its activities in states and
localities in which its


                                      -25-
<PAGE>   54

offices are maintained, in which its agents or independent contractors are
located or in which it is otherwise deemed to be conducting business, that
portion of a Fund's income which is treated as earned in any such state or
locality could be subject to state and local tax. Any taxes paid by the Fund
would reduce the amount of income and gains available for distribution to
shareholders.

   
        If for any taxable year the Fund does not qualify for the special
federal income tax treatment afforded regulated investment companies, all of its
taxable income will be subject to federal income tax at regular corporate rates
(without any deduction for distributions to its shareholders). In such event,
dividend distributions, including amounts derived from interest on tax-exempt
obligations, would be taxable to shareholders to the extent of current and
accumulated earnings and profits, and would be eligible for the dividends
received deduction for corporations in the case of corporate shareholders.
    

   
         If, in any taxable year, a Fund fails to qualify as a regulated
investment company under the Code or fails to meet the distribution requirement,
it would be taxed in the same manner as an ordinary corporation and
distributions to its shareholders would not be deductible by the Fund in
computing its taxable income. In addition, in the event of a failure to qualify,
the Fund's distributions, to the extent derived from the Fund's current or
accumulated earnings and profits, would constitute dividends (eligible for the
corporate dividends-received deduction) which are taxable to shareholders as
ordinary income, even though those distributions might otherwise (at least in
part) have been treated in the shareholders' hands as long-term capital gains.
If a Fund fails to qualify as a regulated investment company in any year, it
must pay out its earnings and profits accumulated in that year in order to
qualify again as a regulated investment company. In addition, if the Fund failed
to qualify as a regulated investment company for a period greater than one
taxable year, the Fund may be required to recognize any net built-in gains (the
excess of the aggregate gains, including items of income, over aggregate losses
that would have been realized if it had been liquidated) in order to qualify as
a regulated investment company in a subsequent year.
    

         Investors in the Money Market Fund should be aware that it is possible
that some portion of the Fund's income from investments in obligations of
foreign banks could become subject to foreign taxes.

   
         Because the Tax Free Fund will distribute exempt interest dividends,
interest on indebtedness incurred by a shareholder to purchase or carry Fund
shares is not deductible for federal income tax purposes. In addition, the Code
may require a shareholder, if he or she receives exempt interest dividends, to
treat as taxable income a portion of certain otherwise non-taxable social
security and railroad retirement benefit payments. Furthermore, that portion of
any dividend paid by the Fund which represents income derived from private
activity securities held by the Fund may not retain its tax-exempt status in the
hands of a shareholder who is a "substantial user" of a facility financed by
such bonds, or a "related person" thereof. Moreover, as noted in the Prospectus
some of the Fund's dividends may be a tax preference item, or a component of an
adjustment item, for purposes of the federal individual and corporate
alternative minimum taxes. In addition, the receipt of Fund dividends and
distributions may affect a foreign corporate shareholder's federal "branch
profits" tax liability and a Subchapter S corporation shareholder's federal
"excess net passive income" tax liability. Shareholders should consult their own
tax advisers as to whether they (i) may be "substantial users" with respect to a
facility or "related" to such users within the meaning of the Code and (ii) are
subject to a federal alternative minimum tax, the federal "branch profits" tax,
or the federal "excess net passive income" tax.
    

         While each Fund does not expect to realize net long-term capital gains,
any such realized gains will be distributed as described in the Prospectus. Such
distributions ("capital gain dividends") will be taxable to shareholders as
long-term capital gains, regardless of how long a shareholder has held Fund
shares, and will be designated as capital gain dividends in a written notice
mailed by a Fund to shareholders after the close of the Fund's taxable year.
Gain or loss, if any, recognized on the sale or other disposition of shares of
the Fund will be taxed as capital gain or loss if the shares are capital assets
in the shareholder's hands. Generally, a shareholder's gain or loss will be a
long-term gain or loss if the shares have been held for more than one year. If a
shareholder sells or otherwise disposes of a share of the Fund before holding it
for more than six months, any loss on the sale or other disposition of such
share shall be treated as a long-term capital loss to the extent of any capital
gain dividends received by the shareholder with respect to such share.

         A shareholder of a Fund receiving dividends or distributions in
additional shares should be treated for federal income tax purposes as receiving
a distribution in an amount


                                      -26-
<PAGE>   55

equal to the amount of money that a shareholder receiving cash dividends or
distributions receives, and should have a cost basis in the shares received
equal to that amount.

         Each shareholder of the Money Market Fund will receive an annual
statement as to the federal income tax status of his dividends and distributions
from the Fund for the prior calendar year. Furthermore, shareholders will also
receive, if appropriate, various written notices after the close of the Fund's
taxable year regarding the federal income tax status of certain dividends and
distributions that were paid (or that are treated as having been paid) by the
Fund to its shareholders during the preceding year.

         Each shareholder of the Tax Free Fund will receive an annual statement
as to the federal personal income tax status of his dividends and distributions
from the Fund for the prior calendar year. Furthermore, shareholders will also
receive, if appropriate, various written notices after the close of the Fund's
taxable year regarding the federal income tax status of certain dividends and
distributions that were paid (or that are treated as having been paid) by the
Fund to its shareholders during the preceding year. Shareholders should consult
their tax advisers as to any other state and local taxes that may apply to the
Fund's dividends and distributions. The dollar amount of dividends excluded from
federal income taxation and the dollar amounts subject to federal income
taxation, if any, will vary for each shareholder depending upon the size and
duration of each shareholder's investment in the Fund. In the event that the
Fund derives taxable net investment income, it intends to designate as taxable
dividends the same percentage of each day's dividend as its actual taxable net
investment income bears to its total net investment income earned on that day.
Therefore, the percentage of each day's dividend designated as taxable, if any,
may vary from day to day.

   
         If a shareholder fails to furnish a correct taxpayer identification
number, fails to report fully dividend or interest income, or fails to certify
that he has provided a correct taxpayer identification number and that he is not
subject to withholding, then the shareholder may be subject to a 31% "backup
withholding" tax with respect to taxable dividends and distributions. An
individual's taxpayer identification number is his social security number.
Corporate shareholders and other shareholders specified in the Code are or may
be exempt from backup withholding. The backup withholding tax is not an
additional tax and may be credited against a taxpayer's federal income tax
liability.
    

THE FOREGOING IS ONLY A SUMMARY OF CERTAIN MATERIAL TAX CONSEQUENCES AFFECTING A
FUND AND ITS SHAREHOLDERS. SHAREHOLDERS ARE ADVISED TO CONSULT THEIR OWN TAX
ADVISERS WITH RESPECT TO THE PARTICULAR TAX CONSEQUENCES TO THEM OF AN
INVESTMENT IN THE FUND.

                             DETERMINATION OF YIELD

   
         From time to time, each Fund may quote its yield, effective yield and
tax equivalent yield, as applicable, in advertisements or in reports and other
communications to shareholders. [INSERT 7-DAY YIELDS] A Fund's seven-day yield
is calculated by (i) determining the net change in the value of a hypothetical
pre-existing account in the Fund
    


                                      -27-
<PAGE>   56

having a balance of one share at the beginning of a seven calendar day period
for which yield is to be quoted, (ii) dividing the net change by the value of
the account at the beginning of the period to obtain the base period return and
(iii) annualizing the results (i.e., multiplying the base period return by
365/7). The net change in the value of the account reflects the value of
additional shares purchased with dividends declared on the original share and
any such additional shares, but does not include realized gains and losses or
unrealized appreciation and depreciation. The Fund's seven-day compound
effective annualized yield is calculated by adding 1 to the base period return
(calculated as described above), raising the sum to a power equal to 365/7 and
subtracting 1. The Tax Free Fund's tax equivalent yield is calculated by
dividing that portion of the base period return which is exempt from federal
personal income taxes by 1 minus the highest marginal federal individual income
tax rate and adding the quotient to that portion, if any, of the yield which is
not exempt from those taxes.

         Each Fund's yield will vary from time to time depending upon market
conditions, the composition of its portfolio and operating expenses allocable to
it. Yield information may be useful in reviewing a Fund's performance and for
providing a basis for comparison with other investment alternatives. However,
the Fund's yield will fluctuate, unlike certain bank deposits or other
investments which pay a fixed yield for a stated period of time. In comparing
the Fund's yield with that of other money market funds, investors should give
consideration to the quality and maturity of the portfolio securities of the
respective funds.

                       INDEPENDENT ACCOUNTANTS AND COUNSEL

   
         PricewaterhouseCoopers LLP ("PwC"), with principal offices at 2400
Eleven Penn Center, Philadelphia, Pennsylvania 19103, serves as independent
accountants for each Fund. The statement of assets and liabilities of each Fund,
as of September 17, 1998, that appears in this Statement of Additional
Information has been audited by PwC, whose report thereon appears elsewhere
herein and has been included herein by reference in reliance upon the report of
such firm of independent accountants given upon their authority as experts in
accounting and auditing.
    

         Willkie Farr & Gallagher serves as counsel for the Fund as well as
counsel to Warburg, Counsellors Service and Counsellors Securities.

                                  MISCELLANEOUS

   
         As of March 31, 1998, the name, address and percentage of ownership of
other persons that control a Fund (within the meaning of the rules and
regulations under the 1940 Act) or own of record 5% or more of the Fund's
outstanding shares were as follows:
    


                                      -28-
<PAGE>   57

   
<TABLE>
<CAPTION>
- --------------------------------------------------------- ------------------------------
MONEY MARKET FUND                                                 COMMON STOCK
- --------------------------------------------------------- ------------------------------
<S>                                                       <C>
Fiduciary Trust Company International*                                         %
Securities  Services Group
Church Street Station
P.O. Box  3199
New York, NY  10008-3199
- --------------------------------------------------------- ------------------------------
Neuberger and Berman*                                                          %
Attn.: Operations Control Dept.
55 Water Street, FL 272
New York, NY  10041-0001
- --------------------------------------------------------- ------------------------------
The Bank of New York*                                                          %
Special Processing Dept.
2nd Floor
One Wall Street
New York, NY  10005-2501
- --------------------------------------------------------- ------------------------------
Zilog Inc. Corporate Acct.*                                                    %
c/o M. Tangirala
Zilog Inc.
210 Hacienda Avenue
Campbell, CA 95008-6617
- --------------------------------------------------------- ------------------------------
TAX FREE FUND                                                     COMMON STOCK
- --------------------------------------------------------- ------------------------------
Fiduciary Trust Company International*                                         %
Securities Services Group
Church Street Station
P.O. Box 3199
New York, NY  10008-3199
- --------------------------------------------------------- ------------------------------
Neuberger & Berman*                                                            %
Attn.: Operations Control Dept.
55 Water Street, FL 272
New York, NY  10041-0001
- --------------------------------------------------------- ------------------------------
</TABLE>
    

   
* To the knowledge of each Fund, these entities are not the beneficial owners of
a majority of the shares held by them of record.
    

   
         Mr. Lionel I. Pincus may be deemed to have beneficially owned ____% and
____% of the Money Market and Tax Free Funds' shares outstanding, respectively,
including shares owned by clients for which Warburg has investment discretion
and by companies that he may be deemed to control. Mr. Pincus disclaims
ownership of these shares and does not intend to exercise voting rights with
respect to these shares.
    


                                      -29-
<PAGE>   58

                              FINANCIAL STATEMENTS

   
         Each Fund's audited annual report, dated December 31, 1998, which
either accompanies this Statement of Additional Information or has previously
been provided to the investor to whom this Statement of Additional Information
is being sent, is incorporated herein by reference. A Fund will furnish without
charge a copy of its annual report upon request by calling Warburg Pincus Funds
at (800) 927-2874.
    


                                      -30-
<PAGE>   59

   
                                    APPENDIX
    

                     DESCRIPTION OF COMMERCIAL PAPER RATINGS

         Commercial paper rated A-1 by Standard & Poor's Ratings Services
("S&P") indicates that the degree of safety regarding timely payment is strong.
Those issues determined to possess extremely strong safety characteristics are
denoted with a plus sign designation. Capacity for timely payment on commercial
paper rated A-2 is satisfactory, but the relative degree of safety is not as
high as for issues designated A-1.

         The rating Prime-1 is the highest commercial paper rating assigned by
Moody's Investor Services, Inc. ("Moody's"). Issuers rated Prime-1 (or related
supporting institutions) are considered to have a superior capacity for
repayment of short-term promissory obligations. Issuers rated Prime-2 (or
related supporting institutions) are considered to have a strong capacity for
repayment of short-term promissory obligations. This will normally be evidenced
by many of the characteristics of issuers rated Prime-1 but to a lesser degree.
Earnings trends and coverage ratios, while sound, will be more subject to
variation. Capitalization characteristics, while still appropriate, may be more
affected by external conditions. Ample alternative liquidity is maintained.

         Short term obligations, including commercial paper, rated A1 + by IBCA
are obligations supported by the highest capacity for timely repayment.
Obligations rated A1 have a very strong capacity for timely repayment.
Obligations rated A2 have a strong capacity for timely repayment, although such
capacity may be susceptible to adverse changes in business, economic or
financial conditions.

         Fitch Investors Services, Inc. employs the rating F-1+ to indicate
issues regarded as having the strongest degree of assurance for timely payment.
The rating F-1 reflects an assurance of timely payment only slightly less in
degree than issues rated F-1+, while the rating F-2 indicates a satisfactory
degree of assurance for timely payment, although the margin of safety is not as
great as indicated by the F-1+ and F-1 categories.

         Duff & Phelps, Inc. employs the designation of Duff 1 with respect to
top grade commercial paper and bank money instruments. Duff 1+ indicates the
highest certainty of timely payment: short-term liquidity is clearly outstanding
and safety is just below risk-free U.S. Treasury short-term obligations. Duff 1-
indicates high certainty of timely payment. Duff 2 indicates good certainty of
timely payment: liquidity factors and company fundamentals are sound.

                   DESCRIPTION OF MUNICIPAL SECURITIES RATINGS

         The following summarizes the highest two ratings used by S&P for
Municipal Securities:

         AAA - This is the highest rating assigned by S&P to a debt obligation
and indicates an extremely strong capacity to pay interest and repay principal.

<PAGE>   60

         AA - Debt rated AA has a very strong capacity to pay interest and repay
principal and differs from AAA issues only in small degree.

         To provide more detailed indications of credit quality, the "AA" rating
may be modified by the addition of a plus or minus sign to show relative
standing within this major rating category.

         The following summarizes the highest two ratings used by Moody's for
bonds:

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

   
         Moody's applies numerical modifiers (1, 2 and 3) with respect to the
bonds rated Aa. The modifier 1 indicates that the bond being rated ranks in the
higher end of its generic rating category; the modifier 2 indicates a mid-range
ranking; and the modifier 3 indicates that the bond ranks in the lower end of
its generic rating category.
    

         The following summarizes the two highest ratings used by S&P for
short-term notes:

         SP-1 - Loans bearing this designation evidence a very strong or strong
capacity to pay principal and interest. Those issues determined to possess
overwhelming safety characteristics will be given a (+) designation.

         SP-2 - Loans bearing this designation evidence a satisfactory capacity
to pay principal and interest.

         The following summarizes the two highest ratings used by Moody's for
short-term notes and variable rate demand obligations:

         MIG-1/VMIG-1 - Obligations bearing these designations are of the best
quality, enjoying strong protection from established cash flows of funds for
their servicing or from established and broad-based access to the market for
refinancing, or both.

         MIG-2/VMIG-2 - Obligations bearing these designations are of high
quality with margins of protection ample although not so large as in the
preceding group.


                                      A-2
<PAGE>   61

         Commercial paper rated A-1 by S&P indicates that the degree of safety
regarding timely payment is strong. Those issues determined to possess extremely
strong safety characteristics are denoted with a plus sign designation. Capacity
for timely payment on commercial paper rated A-2 is satisfactory, but the
relative degree of safety is not as high as for issues designated A-1.

         The rating Prime-1 is the highest commercial paper rating assigned by
Moody's Investors Services, Inc. Issuers rated Prime-1 (or related supporting
institutions) are considered to have a superior capacity for repayment of
short-term promissory obligations. Issuers rated Prime-2 (or related supporting
institutions) are considered to have a strong capacity for repayment of
short-term promissory obligations. This will normally be evidenced by many of
the characteristics of issuers rated Prime-1 but to a lesser degree. Earnings
trends and coverage ratios, while sound, will be more subject to variation.
Capitalization characteristics, while still appropriate, may be more affected by
external conditions. Ample alternative liquidity is maintained.

         Short term obligations, including commercial paper, rated A1 + by IBCA
are obligations supported by the highest capacity for timely repayment.
Obligations rated A1 have a very strong capacity for timely repayment.
Obligations rated A2 have a strong capacity for timely repayment, although such
capacity may be susceptible to adverse changes in business, economic or
financial conditions.

         Fitch Investors Services, Inc. employs the rating F-1+ to indicate
issues regarded as having the strongest degree of assurance for timely payment.
The rating F-1 reflects an assurance of timely payment only slightly less in
degree than issues rated F-1+, while the rating F-2 indicates a satisfactory
degree of assurance for timely payment, although the margin of safety is not as
great as indicated by the F-1+ and F-1 categories.

         Duff & Phelps, Inc. employs the designation of Duff 1 with respect to
top grade commercial paper and bank money instruments. Duff 1+ indicates the
highest certainty of timely payment: short-term liquidity is clearly outstanding
and safety is just below risk-free U.S. Treasury short-term obligations. Duff 1-
indicates high certainty of timely payment. Duff 2 indicates good certainty of
timely payment: liquidity factors and company fundamentals are sound.


                                      A-3
<PAGE>   62

                                     PART C

                                OTHER INFORMATION

   
Item 23. Exhibits
    

   
a(1)     Articles of Incorporation. 1
    

   
(2)      Articles of Amendment to the Articles of Incorporation.2
    

   
b(1)     By-Laws. 1
    

   
(2)      Amended and Restated By-laws. 2
    

   
c        Registrant's Forms of Stock Certificates.3
    

   
d(1)     Form of Investment Advisory Agreement.4
    

   
(2)      Form of Sub-Investment Advisory and Administration Agreement. 4
    

   
e        Form of Distribution Agreement. 4
    

   
f        Not applicable.
    

   
g        Custodian Agreement with PNC Bank, National Association. 4
    

   
h(1)     Transfer Agency and Service Agreement. 4
    

   
(2)      Form of Co-Administration Agreement with Credit Suisse Asset Management
         Ltd. 4
    

   
(3)      Form of Co-Administration Agreement with PFPC Inc. 4
    

   
(4)      Form of Co-Administration Delegation Agreement between Credit Suisse
         Asset Management Ltd. and Counsellors Funds Service, Inc. 4
    

- ----------

1        Incorporated by reference to Registrant's Registration Statement on
         Form N-1A filed on July 24, 1998 (Securities Act File No. 333-59805).

2        Incorporated by reference to Registrant's Pre-Effective Amendment No. 2
         to the Registration Statement on Form N-1A filed on September 25, 1998
         (Securities Act File No. 333-59805).

3        Incorporated by reference to Registrant's Pre-Effective Amendment No. 1
         to the Registration Statement on Form N-1A filed on September 21, 1998
         (Securities Act File No. 333-59805).

4        Incorporated by reference; material provisions of this exhibit
         substantially similar to those of the corresponding exhibit to Pre-
         Effective Amendment No. 1 to Registration Statement on Form N-1A of
         Warburg, Pincus WorldPerks Money Market Fund, Inc. filed on September
         21, 1998 (Securities Act File No. 333-59801; Investment Company Act
         File No. 811-08899).

<PAGE>   63

   
i(1)     Opinion and Consent of Willkie Farr & Gallagher.5
    

   
(2)      Opinion and Consent of Venable, Baetjer and Howard, LLP, Maryland
         counsel to the Fund.3
    

   
j        Consent of PricewaterhouseCoopers LLP. 5
    

   
k        Not applicable.
    

   
l        Form of Purchase Agreement. 4
    

   
m(1)     Form of Shareholder Servicing and Distribution Plan. 4
    

   
(2)      Form of Distribution Plan. 4
    

   
n        Financial Data Schedule.5
    

   
o        Form of 18f-3 Plan. 4
    

   
Item 24. Persons Controlled by or Under Common Control with Registrant
    

From time to time, Warburg Pincus Asset Management, Inc. ("Warburg"), may be
deemed to control the Fund and other registered investment companies it advises
through its beneficial ownership of more than 25% of the relevant fund's shares
on behalf of discretionary advisory clients. Warburg has seven wholly-owned
subsidiaries: Counsellors Securities Inc., a New York corporation; Counsellors
Funds Service, Inc., a Delaware corporation; Counsellors Agency Inc., a New York
corporation; Warburg, Pincus Investments International (Bermuda), Ltd., a
Bermuda corporation; Warburg, Pincus Asset Management International, Inc., a
Delaware corporation; Warburg Pincus Asset Management (Japan), Inc., a Japanese
corporation; and Warburg Pincus Asset Management (Dublin) Limited, an Irish
corporation.

- ----------

5        To be filed by amendment.

<PAGE>   64

   
Item 25. Indemnification
    

         Registrant, officers and directors of Warburg, of Counsellors
Securities Inc. ("Counsellors Securities") and of Registrant are covered by
insurance policies indemnifying them for liability incurred in connection with
the operation of Registrant. Discussion of this coverage is incorporated by
reference to Item 27 of Part C of the Fund's initial Registration Statement on
Form N-1A filed on July 24, 1998.

   
Item 26. (a) Business and Other Connections of Investment Adviser
    

   
         Warburg, a wholly owned subsidiary of Warburg, Pincus Asset Management
Holdings, Inc., acts as investment adviser to Registrant. Warburg renders
investment advice to a wide variety of individual and institutional clients. The
list required by this Item 26 of officers and directors of Warburg, together
with information as to their other business, profession, vocation or employment
of a substantial nature during the past two years, is incorporated by reference
to Schedules A and D of Form ADV filed by Warburg (SEC File No. 801-28-496).
    

         (b) Business and Other Connections of Sub-Investment Adviser and
         Administrator

   
         Blackrock Institutional Management Corporation ("BIMC"), a wholly owned
indirect subsidiary of PNC Bank, National Association ("PNC"), performs
sub-investment advisory services for Registrant and advisory services for
certain other investment companies. PNC and its predecessors have been in the
business of managing the investments of fiduciary and other accounts in the
Philadelphia area since 1847. In addition to its trust business, PNC provides
commercial banking services. The list required by this Item 26 of officers and
directors of BIMC, together with information as to their other business,
profession, vocation or employment of a substantial nature during the past two
years, is by BIMC (SEC File No. 801-13-304).
    

   
Item 27. Principal Underwriter
    

         (a) Counsellors Securities will act as distributor for Registrant, as
well as for Warburg Pincus Balanced Fund; Warburg Pincus Capital Appreciation
Fund; Warburg Pincus Cash Reserve Fund; Warburg Pincus Central & Eastern Europe
Fund; Warburg Pincus Emerging Growth Fund; Warburg Pincus Emerging Markets Fund;
Warburg Pincus Emerging Markets II Fund; Warburg Pincus European Equity Fund;
Warburg Pincus Fixed Income Fund; Warburg Pincus Global Fixed Income Fund;
Warburg Pincus Global Post-Venture Capital Fund; Warburg Pincus Global
Telecommunications Fund; Warburg Pincus Growth & Income Fund; Warburg Pincus
Health Sciences Fund; Warburg Pincus High Yield Fund; Warburg Pincus
Institutional Fund; Warburg Pincus Intermediate Maturity Government Fund;
Warburg Pincus International Equity Fund;

<PAGE>   65

   
Warburg Pincus International Growth Fund; Warburg Pincus International Small
Company Fund; Warburg Pincus Japan Growth Fund; Warburg Pincus Japan Small
Company Fund; Warburg Pincus Long-Short Equity Fund; Warburg Pincus Long-Short
Market Neutral Fund; Warburg Pincus Major Foreign Markets Fund; Warburg Pincus
Municipal Bond Fund; Warburg Pincus New York Intermediate Municipal Fund;
Warburg Pincus New York Tax Exempt Fund; Warburg Pincus Post-Venture Capital
Fund; Warburg Pincus Select Economic Value Equity Fund; Warburg Pincus Small
Company Growth Fund; Warburg Pincus Small Company Value Fund; Warburg Pincus
Strategic Global Fixed Income Fund; Warburg Pincus Strategic Value Fund; Warburg
Pincus Trust; Warburg Pincus Trust II; Warburg Pincus U.S. Core Equity Fund;
Warburg Pincus U.S. Core Fixed Income Fund; and Warburg Pincus WorldPerks Money
Market Fund.
    

         (b) For information relating to each director, officer or partner of
Counsellors Securities, reference is made to Form BD (SEC File No. 15-654) filed
by Counsellors Securities under the Securities Exchange Act of 1934.

         (c) None.

   
Item 28. Location of Accounts and Records
    

         (1)      Warburg, Pincus WorldPerks Tax Free Money Market Fund, Inc.
                  466 Lexington Avenue 
                  New York, New York 10017-3147 
                  (Fund's articles of incorporation, by-laws and minute books)

         (2)      Blackrock Institutional Management Corporation 
                  400 Bellevue Parkway
                  Wilmington, Delaware 19809 
                  (records relating to its functions as sub-investment adviser
                  and administrator)

         (3)      Credit Suisse Asset Management Ltd. 
                  Beaufort House 
                  15 St. Botolph Street
                  GB - London EC3A 7JJ 
                  (records relating to its functions as co-administrator)

         (4)      PFPC Inc. 
                  400 Bellevue Parkway 
                  Wilmington, Delaware 19809
                  (records relating to its functions as co-administrator,
                  transfer and dividend disbursing agent)

   
         (5)      PNC Bank, National Association 
                  Mutual Fund Custody Services
    

<PAGE>   66

   
                  200 Stevens Drive 
                  Suite 440 
                  Lester, Pennsylvania 19113
                  (records relating to its functions as custodian)
    

         (6)      Counsellors Securities Inc. 
                  466 Lexington Avenue 
                  New York, New York 10017-3147
                  (records relating to its functions as distributor)

         (7)      Warburg Pincus Asset Management, Inc. 
                  466 Lexington Avenue 
                  New York, New York 10017-3147 
                  (records relating to its functions as investment adviser)

         (8)      State Street Bank and Trust Co. 
                  225 Franklin Street 
                  Boston, Massachusetts 02110 
                  (records relating to its functions as transfer agent and 
                  dividend disbursing agent)

         (9)      Boston Financial Data Services, Inc. 
                  2 Heritage Drive North
                  Quincy, Massachusetts 02177 
                  (records relating to its functions as transfer agent and 
                  dividend disbursing agent)

   
Item 29. Management Services
    

         Not applicable.

   
Item 30. Undertakings
    

   
         Not applicable.
    

<PAGE>   67

                                   SIGNATURES

   
         Pursuant to the requirements of the Securities Act of 1933, as amended,
and the Investment Company Act of 1940, as amended, the Registrant has duly
caused this Amendment to the Registration Statement to be signed on its behalf
by the undersigned, thereunto duly authorized, in the City of New York and the
State of New York, on the 26th day of February, 1999.
    

                                    WARBURG, PINCUS WORLDPERKS TAX FREE MONEY
                                    MARKET FUND, INC.

                                    By:/s/Eugene L. Podsiadlo
                                       ----------------------
                                       Eugene L. Podsiadlo
                                       President

         Pursuant to the requirements of the Securities Act of 1933, as amended,
this Amendment has been signed below by the following persons in the capacities
and on the date indicated:

   
<TABLE>
<CAPTION>
Signature                                            Title                           Date
<S>                                                 <C>                         <C> 
/s/John L. Furth                                    Chairman of the             February 26, 1999
      John L. Furth                                 Board of Directors

/s/Eugene L. Podsiadlo                              President                   February 26, 1999
      Eugene L. Podsiadlo

/s/Howard Conroy                                    Vice President              February 26, 1999
      Howard Conroy                                 and Chief Financial
                                                    Officer

/s/Daniel S. Madden                                 Treasurer and               February 26, 1999
      Daniel S. Madden                              Chief Accounting
                                                    Officer

/s/Richard N. Cooper                                Director                    February 26, 1999
      Richard N. Cooper

/s/Jack W. Fritz                                    Director                    February 26, 1999
      Jack W. Fritz

/s/Jeffrey E. Garten                                Director                    February 26, 1999
      Jeffrey E. Garten

/s/Thomas A. Melfe                                  Director                    February 26, 1999
      Thomas A. Melfe

/s/Arnold M. Reichman                               Director                    February 26, 1999
      Arnold M. Reichman

/s/Alexander B. Trowbridge                          Director                    February 26, 1999
      Alexander B. Trowbridge
</TABLE>
    


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