AMERICAN CENTURY INTERNATIONAL BOND FUNDS
485BPOS, 1998-05-01
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                       SECURITIES AND EXCHANGE COMMISSION
                              Washington, DC 20549

                                    FORM N-1A

REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933               X
                                                                    -----

         File No. 33-43321:

         Pre-Effective Amendment No.____

         Post-Effective Amendment No._11_                             X
                                                                    -----
                                     and/or

REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940       X
                                                                    -----

         File No. 811-6441:

         Amendment No._12_


         AMERICAN CENTURY INTERNATIONAL BOND FUNDS
         (Exact Name of Registrant as Specified in Charter)

         4500 Main Street, Kansas City, MO  64111
         (Address of Principal Executive Offices)

         Registrant's Telephone Number, including Area Code:  (816) 531-5575

         Douglas A. Paul
         Secretary, Vice President
         and General Counsel
         1665 Charleston Road, Mountain View, CA  94043
         (Name and Address of Agent for Service)

Approximate Date of Proposed Public Offering: (first offered 1/7/92)

It is proposed that this filing become effective:

   _____  immediately upon filing pursuant to paragraph (b) of Rule 485
   __X__  on May 1, 1998 pursuant to paragraph (b) of Rule 485 
   _____  60 days after filing pursuant to paragraph (a) of Rule 485 
   _____  on (date) pursuant to paragraph (a)(1) of Rule 485 
   _____  75 days after filing pursuant to paragraph (a) (2) of Rule 485 
   _____  on (date) pursuant to paragraph (a)(2) of Rule 485


- --------------------------------------------------------------------------------
Registrant has elected to register an indefinite  number of shares of beneficial
interest  under the  Securities  Act of 1933  pursuant  to Rule 24f-2  under the
Investment  Company Act of 1940. On February 24, 1998,  the  Registrant  filed a
Rule 24f-2 Notice on Form 24f-2 with  respect to its fiscal year ended  December
31, 1997.
<PAGE>
                    AMERICAN CENTURY INTERNATIONAL BOND FUNDS

                     1933 Act Post-Effective Amendment No. 11
                            1940 Act Amendment No. 12

                                    FORM N-1A
                              CROSS-REFERENCE SHEET

PART A:   INTERNATIONAL BOND PROSPECTUS: INVESTOR CLASS

ITEM      PROSPECTUS CAPTION

1         Cover Page

2         Transaction and Operating Expense Table

3         Financial Highlights; Performance Advertising

4         Management;  Further  Information About American  Century;  Investment
          Objective of the Fund;  Investment Policies of the Fund; Risk Factors;
          Other Investment Practices, Their Characteristics and Risks

5         Management

5A        Not Applicable

6         Further  Information  About  American  Century;  How to Redeem Shares;
          Cover Page; Distributions; Taxes

7         Cover Page; Distribution of Fund Shares; How to Open an Account; Share
          Price; Transfer and Administrative Services

8         How to Redeem Shares; Transfer and Administrative Services

9         Not Applicable


PART A:   INTERNATIONAL BOND PROSPECTUS: ADVISOR CLASS

ITEM      PROSPECTUS CAPTION

1         Cover Page

2         Transaction and Operating Expense Table

3         Performance Information of Other Class; Performance Advertising

4         Management;  Further  Information About American  Century;  Investment
          Objective of the Fund;  Investment Policies of the Fund; Risk Factors;
          Other Investment Practices, Their Characteristics and Risks

5         Management

5A        Not Applicable

6         Further  Information  About  American  Century;  How to Redeem Shares;
          Cover Page; Distributions; Taxes

7         Cover Page;  Distribution  of Fund  Shares;  How to Purchase  and Sell
          American  Century  Funds;  Share Price;  Transfer  and  Administrative
          Services

8         How to Redeem Shares; Transfer and Administrative Services

9         Not Applicable


PART B:   STATEMENT OF ADDITIONAL INFORMATION

ITEM      STATEMENT OF ADDITIONAL INFORMATION CAPTION

10        Cover Page

11        Table of Contents

12        Not Applicable

13        Investment   Policies,   Techniques   and  Risk  Factors;   Investment
          Restrictions; Portfolio Transactions

14        Trustee and Officers

15        Additional Purchase and Redemption Information; Trustees and Officers

16        Management; Transfer and Administrative Services; About the Trust

17        Portfolio Transactions

18        About the Trust

19        Additional Purchase and Redemption Information; Valuation of Portfolio
          Securities

20        Taxes

21        Distribution  of  Fund  Shares;  Additional  Purchase  and  Redemption
          Information

22        Performance

23        Cover Page
<PAGE>
                                   PROSPECTUS

                        [american century logo (reg.sm)]
                                    American
                                Century(reg.tm)


   
                                  MAY 1, 1998
    

                                    BENHAM
                                 GROUP(reg.tm)

                              International Bond

INVESTOR CLASS


                         AMERICAN CENTURY INVESTMENTS
                                FAMILY OF FUNDS

    American  Century  Investments  offers you nearly 70 fund  choices  covering
stocks, bonds, money markets,  specialty investments and blended portfolios.  To
help you find the funds that may meet your investment  needs,  American  Century
funds  have  been  divided  into  three  groups  based on  investment  style and
objectives. These groups, which appear below, are designed to help simplify your
fund decisions.

   
                        AMERICAN CENTURY INVESTMENTS
- -------------------------------------------------------------------------------
        Benham                American Century          Twentieth Century
        Group                      Group                      Group
- -------------------------------------------------------------------------------
   MONEY MARKET FUNDS         ASSET ALLOCATION &           GROWTH FUNDS
 GOVERNMENT BOND FUNDS          BALANCED FUNDS          INTERNATIONAL FUNDS
 DIVERSIFIED BOND FUNDS   CONSERVATIVE EQUITY FUNDS
  MUNICIPAL BOND FUNDS         SPECIALTY FUNDS
- -------------------------------------------------------------------------------
  International Bond


                                  PROSPECTUS
                                  MAY 1, 1998
    

                              International Bond

                                INVESTOR CLASS

                   AMERICAN CENTURY INTERNATIONAL BOND FUNDS

   
    American  Century  International  Bond Funds are a part of American  Century
Investments,  a family of funds that  includes  nearly 70 no-load  mutual  funds
covering a variety of investment opportunities. One of the funds from our Benham
Group that invests in the highest-quality  nondollar-denominated  government and
corporate  debt  securities  is described  in this  Prospectus.  Its  investment
objective is listed on page 2 of this Prospectus.  The other funds are described
in separate prospectuses.
    

    Through its Investor Class of shares,  American  Century offers  investors a
full  line  of  no-load  funds,  investments  that  have  no  sales  charges  or
commissions.

   
    This Prospectus  gives you  information  about the fund that you should know
before investing. Please read this Prospectus carefully and retain it for future
reference.  Additional  information  is included in the  Statement of Additional
Information  dated May 1,  1998,  and filed  with the  Securities  and  Exchange
Commission  (SEC).  It is  incorporated  into this  Prospectus by reference.  To
obtain a copy without charge, call or write:

                          AMERICAN CENTURY INVESTMENTS
                       4500 Main Street * P.O. Box 419200
                Kansas City, Missouri 64141-6200 * 1-800-345-2021
                        International calls: 816-531-5575
                     Telecommunications Device for the Deaf:
                   1-800-634-4113 * In Missouri: 816-444-3485
                             www.americancentury.com
    

    Additional  information,  including  this  Prospectus  and the  Statement of
Additional Information,  may be obtained by accessing the Web site maintained by
the SEC (www.sec.gov).

   
    AN  INVESTMENT  IN THE FUND IS NEITHER  INSURED NOR  GUARANTEED  BY THE U.S.
GOVERNMENT.
    

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


PROSPECTUS                                                                    1


                       INVESTMENT OBJECTIVE OF THE FUND

AMERICAN CENTURY -- BENHAM INTERNATIONAL
BOND FUND

    The fund seeks to provide high current  income and capital  appreciation  by
investing in high-quality,  nondollar-denominated  government and corporate debt
securities  outside the United  States.  Prior to October 1, 1997,  the fund was
known as  "American  Century-  Benham  European  Government  Bond  Fund" and its
investment  objective  was "to seek  over the long term as high a level of total
return  as  is  consistent  with  investment  in  the  highest-quality  European
government debt securities."

  There is no assurance that the fund will achieve its investment objective.

NO  PERSON  IS  AUTHORIZED  BY THE  FUND TO GIVE  ANY  INFORMATION  OR MAKE  ANY
REPRESENTATION OTHER THAN THOSE CONTAINED IN THIS PROSPECTUS OR IN OTHER PRINTED
OR WRITTEN  MATERIAL ISSUED BY OR ON BEHALF OF THE FUND, AND YOU SHOULD NOT RELY
ON ANY OTHER INFORMATION OR REPRESENTATION.


2      INVESTMENT OBJECTIVE                   AMERICAN CENTURY INVESTMENTS


                               TABLE OF CONTENTS

Investment Objective of the Fund ..........................................    2
Transaction and Operating Expense Table ...................................    4
Financial Highlights ......................................................    5

INFORMATION REGARDING THE FUND

   
Investment Policies of the Fund ...........................................    6
    Investment Objective ..................................................    6
    International Subadvisor ..............................................    6
    Investment Strategy ...................................................    6
    Portfolio Composition .................................................    7
    Currency Management ...................................................    7
Risk Factors ..............................................................    7
    Investing in Foreign Securities .......................................    7
    European Currency Unification .........................................    8
    Credit Quality ........................................................    9
    Dollar-Weighted Average Maturity ......................................    9
Other Investment Practices, Their Characteristics
  and Risks ...............................................................   10
    Portfolio Turnover ....................................................   10
    When-Issued and Forward Commitment
      Agreements ..........................................................   10
    Interest Rate Futures Contracts and
      Options Thereon .....................................................   10
    Short-Term Instruments ................................................   11
    Securities Lending ....................................................   11
    Other Techniques ......................................................   11
Performance Advertising ...................................................   11
    

HOW TO INVEST WITH AMERICAN CENTURY INVESTMENTS

American Century Investments ..............................................   13
Investing in American Century .............................................   13
How to Open an Account ....................................................   13
        By Mail ...........................................................   13
        By Wire ...........................................................   13
        By Exchange .......................................................   14
        In Person .........................................................   14
    Subsequent Investments ................................................   14
         By Mail ..........................................................   14
         By Telephone .....................................................   14
         By Online Access .................................................   14
         By Wire ..........................................................   14
         In Person ........................................................   14
    Automatic Investment Plan .............................................   14
How to Exchange from One Account
  to Another ..............................................................   14
         By Mail ..........................................................   15
         By Telephone .....................................................   15
         By Online Access .................................................   15
How to Redeem Shares ......................................................   15
         By Mail ..........................................................   15
         By Telephone .....................................................   15
         By Check-A-Month .................................................   15
         Other Automatic Redemptions ......................................   15
    Redemption Proceeds ...................................................   15
         By Check .........................................................   15
         By Wire and ACH ..................................................   15
    Redemption of Shares
      in Low-Balance Accounts .............................................   16
Signature Guarantee .......................................................   16
Special Shareholder Services ..............................................   16
         Automated Information Line .......................................   16
         Online Account Access ............................................   16
         Open Order Service ...............................................   16
         Tax-Qualified Retirement Plans ...................................   17
Important Policies Regarding Your Investments .............................   17
Reports to Shareholders ...................................................   18
Employer-Sponsored Retirement Plans
  and Institutional Accounts ..............................................   18

ADDITIONAL INFORMATION YOU SHOULD KNOW

   
Share Price ...............................................................   19
    When Share Price Is Determined ........................................   19
    How Share Price Is Determined .........................................   19
    Where to Find Information About Share Price ...........................   20
Distributions .............................................................   20
Taxes .....................................................................   20
    Tax-Deferred Accounts .................................................   20
    Taxable Accounts ......................................................   20
Management ................................................................   21
    Investment Management .................................................   21
    Code of Ethics ........................................................   23
    Transfer and Administrative Services ..................................   23
Year 2000 Issues ..........................................................   23
Distribution of Fund Shares ...............................................   24
Further Information About American Century ................................   24
    


PROSPECTUS                                        TABLE OF CONTENTS       3


                    TRANSACTION AND OPERATING EXPENSE TABLE

                                                               International
                                                                   Bond

SHAREHOLDER TRANSACTION EXPENSES:

Maximum Sales Load Imposed on Purchases .........................  none
Maximum Sales Load Imposed on Reinvested Dividends ..............  none
Deferred Sales Load .............................................  none
Redemption Fee(1) ...............................................  none
Exchange Fee ....................................................  none

ANNUAL FUND OPERATING EXPENSES:
(as a percentage of net assets)

Management Fees(2) ..............................................  0.84%
12b-1 Fees ......................................................  none
Other Expenses ..................................................  0.03%
Total Fund Operating Expenses ...................................  0.87%

EXAMPLE:

You would pay the following expenses on a                1 year    $  9
$1,000 investment, assuming a 5% annual return and      3 years      28
redemption at the end of each time period:              5 years      48
                                                       10 years     107
- ----------
(1)  Redemption proceeds sent by wire are subject to a $10 processing fee.

   
(2)  A portion of the management fee may be paid by American Century  Investment
     Management,  Inc. to unaffiliated  third parties who provide  recordkeeping
     and  administrative  services  that  would  otherwise  be  performed  by an
     affiliate of the manager.  See  "Management  - Transfer and  Administrative
     Services," page 23.

    The purpose of this table is to help you  understand  the various  costs and
expenses  that you,  as a  shareholder,  will bear  directly  or  indirectly  in
connection with an investment in the class of shares offered by this Prospectus.
The  example  set  forth  above  assumes   reinvestment  of  all  dividends  and
distributions  and  uses  a  5%  annual  rate  of  return  as  required  by  SEC
regulations.
    

    NEITHER  THE 5% RATE OF  RETURN  NOR THE  EXPENSES  SHOWN  ABOVE  SHOULD  BE
CONSIDERED  INDICATIONS OF PAST OR FUTURE  RETURNS AND EXPENSES.  ACTUAL RETURNS
AND EXPENSES MAY BE GREATER OR LESS THAN THOSE SHOWN.

   
    The shares offered by this  Prospectus are Investor Class shares and have no
up-front or deferred sales charges,  commissions, or 12b-1 fees. The fund offers
one other class of shares,  primarily  to  institutional  investors,  that has a
different  fee  structure  than the Investor  Class.  The  difference in the fee
structures  among the classes is the result of their separate  arrangements  for
shareholder  and  distribution  services and not the result of any difference in
amounts  charged  by  the  manager  for  core  investment   advisory   services.
Accordingly,  the core  investment  advisory  expenses  do not vary by class.  A
difference in fees will result in different  performance for those classes.  For
additional information about the various classes, see "Further Information About
American Century," page 24.


4    TRANSACTION AND OPERATING EXPENSE TABLE      AMERICAN CENTURY INVESTMENTS


<TABLE>
<CAPTION>
                             FINANCIAL HIGHLIGHTS
                              INTERNATIONAL BOND

  The  Financial  Highlights  for the year ended  December 31,  1997,  have been
audited  by  Coopers & Lybrand  L.L.P.,  independent  accountants  whose  report
thereon appears in the fund's annual report,  which is incorporated by reference
into the Statement of Additional  Information.  The Financial Highlights for the
periods  ended on or  before  December  31,  1996,  have been  audited  by other
independent  accountants.  The annual  report  contains  additional  performance
information  and will be made  available  upon request and without  charge.  The
information  presented  is for a share  outstanding  throughout  the years ended
December 31, except as noted.

                                               1997         1996           1995          1994          1993         1992(1)

PER-SHARE DATA

Net Asset Value,
<S>                                           <C>          <C>            <C>           <C>           <C>           <C>   
Beginning of Period ........................  $11.79       $11.95         $10.36        $10.82        $10.01        $10.00
                                             --------     --------       --------      --------      --------      --------
Income From Investment Operations

  Net Investment Income ....................   0.65         0.69           0.61          0.78          0.69          0.79

  Net Realized and Unrealized Gain
  (Loss) on Investment Transactions ........  (1.34)        0.03           1.88         (0.63)         0.49          0.38
                                             --------     --------       --------      --------      --------      --------
  Total From Investment Operations .........  (0.69)        0.72           2.49          0.15          1.18          1.17
                                             --------     --------       --------      --------      --------      --------
Distributions

  From Net Investment Income ...............  (0.04)       (0.71)         (0.90)        (0.60)        (0.37)        (0.66)

  In Excess of Net Investment Income .......    --         (0.02)           --            --            --            --

  From Net Realized Gains on
  Investment Transactions ..................  (0.14)       (0.15)           --          (0.01)          --          (0.50)
                                             --------     --------       --------      --------      --------      --------
  Total Distributions ......................  (0.18)       (0.88)         (0.90)        (0.61)        (0.37)        (1.16)
                                             --------     --------       --------      --------      --------      --------
Net Asset Value, End of Period .............  $10.92       $11.79         $11.95        $10.36        $10.82        $10.01
                                             ========     ========       ========      ========      ========      ========
  TOTAL RETURN(2) ..........................  (5.88)%       6.38%         24.40%         1.52%        11.79%         7.08%

RATIOS/SUPPLEMENTAL DATA

Ratio of Operating Expenses
to Average Net Assets ......................   0.84%        0.83%          0.82%         0.86%         0.85%       0.51%(3)

Ratio of Net Investment Income
to Average Net Assets ......................   4.82%        5.48%          6.14%         6.09%         6.27%       7.59%(3)

Portfolio Turnover Rate ....................   163%         242%           167%          166%          310%          252%

Net Assets, End of Period (in thousands) ... $165,731     $252,456       $252,247      $194,301      $355,615      $337,043
- ----------

(1) January 7, 1992 (inception) through December 31, 1992.

(2) Total  return   assumes   reinvestment   of  dividends   and  capital  gains
    distributions,  if any. Total returns for periods less than one year are not
    annualized.

(3) Annualized.
</TABLE>
    

PROSPECTUS                                         FINANCIAL HIGHLIGHTS       5


                        INFORMATION REGARDING THE FUND

INVESTMENT POLICIES OF THE FUND

    The fund has adopted certain  investment  restrictions that are set forth in
the  Statement of Additional  Information.  Those  restrictions,  as well as the
investment objective of the fund identified on page 2 of this Prospectus and any
other investment  policies  designated as "fundamental" in this Prospectus or in
the Statement of Additional  Information,  cannot be changed without shareholder
approval.  The fund has implemented additional investment policies and practices
to guide its  activities  in the  pursuit  of its  investment  objective.  These
policies and practices,  which are described throughout this Prospectus, are not
designated  as  fundamental  policies  and may be  changed  without  shareholder
approval.

    For an explanation of the  securities  ratings  referred to in the following
discussion, see "Other Information" in the Statement of Additional Information.

INVESTMENT OBJECTIVE

    The fund seeks to provide high current  income and capital  appreciation  by
investing in high-quality,  nondollar-denominated  government and corporate debt
securities  outside the United States.  There is no assurance that the fund will
achieve its investment  objective.  The fund is a  "non-diversified  company" as
defined in the Investment  Company Act of 1940 (the  "Investment  Company Act"),
which means that the proportion of the fund's assets that may be invested in the
securities of a single issuer is not limited by the Investment Company Act.

    The fund may be appropriate for U.S. investors who:

    *   Want to protect their income against a decline in the  purchasing  power
        of the U.S. dollar relative to that of foreign currencies.

    *   Want to  diversify  their  investments  beyond  U.S.  dollar-denominated
        securities and interest rate exposure.

    As market conditions change (i.e.,  interest rate,  political,  and economic
changes  occur),  the fund's  value will vary.  The fund's  performance  will be
affected by currency values,  foreign  economies,  and other foreign  investment
factors.

INTERNATIONAL SUBADVISOR

    J.P. Morgan Investment  Management Inc. (JPMIM) is the fund's subadvisor and
is responsible for its day-to-day operations. JPMIM is headquartered in New York
and maintains offices in most of the world's financial centers, including London
and Frankfurt.

INVESTMENT STRATEGY

    JPMIM selects the fund's  investments  by using a combination of fundamental
research  and bond and  currency  valuation  models.  The  following  is a brief
summary of factors considered by JPMIM in selecting the fund's investments:

    *   ECONOMIC/POLITICAL FUNDAMENTALS: JPMIM evaluates each country's economic
        climate and political discipline for controlling deficits and inflation.

    *   EXPECTED RETURN:  Using economic forecasts,  JPMIM projects the expected
        return for each country.

    *   RELATIVE   VALUE:   By  contrasting   expected  risks  and  returns  for
        investments in each country,  JPMIM selects those countries  expected to
        produce the best return at reasonable risk.

    The fund's  investments  may  include  but shall not be limited to: (1) Debt
obligations issued or guaranteed by (a) a foreign sovereign government or one of
its agencies, authorities, instrumentalities or political subdivisions including
a foreign state, province or municipality,  and (b) supranational  organizations
such as the World Bank, Asian  Development Bank,  European  Investment Bank, and
European Economic Community;  (2) Debt obligations of (a) foreign banks and bank
holding  companies,  and (b) domestic banks and  corporations  issued in foreign
currencies;  and (3) Foreign corporate debt securities and commercial paper. All
of these  investments must satisfy the credit quality  standards (i.e.,  "AA" or
higher) established by the Trustees of the fund.


6      INFORMATION REGARDING THE FUND           AMERICAN CENTURY INVESTMENTS


    Such  securities may take a variety of forms  including  those issued in the
local currency of the issuer,  Euro bonds, and bonds denominated in the European
currencies or ECUs. ECUs are a composite currency consisting of fixed amounts of
currency of European  Economic  Community member countries.  Normally,  the fund
will only purchase bonds denominated in foreign currencies.

PORTFOLIO COMPOSITION

    Under  normal  market  conditions,  the fund will invest at least 65% of its
total  assets in bonds  issued or  guaranteed  by foreign  governments  or their
agencies and by foreign authorities,  provinces and municipalities. The fund may
invest  up to 35% of its total  assets  in  high-quality  (i.e.,  rated  "AA" or
higher) foreign corporate debt securities.

   
    The fund's credit quality  requirements  effectively  limit the countries in
which the fund may invest.  As of the date of this Prospectus,  the fund expects
to invest  in the  securities  of  issuers  located  in and  governments  of the
following countries:  Australia,  Austria,  Belgium,  Canada, Denmark,  Finland,
France, Germany, Ireland, Japan,  Liechtenstein,  Luxembourg,  Netherlands,  New
Zealand, Norway, Portugal,  Singapore, Spain, Sweden,  Switzerland,  Taiwan, and
United  Kingdom.  To limit  the  possibility  that the fund will  become  unduly
concentrated  in Japan,  the fund  currently  limits its  investment  in issuers
located in Japan to no more than 15% of total assets.
    

CURRENCY MANAGEMENT

    The rate of exchange between U.S. dollars and foreign currencies fluctuates,
which  results  in gains  and  losses to the fund.  Even if the  fund's  foreign
security  holdings perform well, an increase in the value of the dollar relative
to the currencies in which  portfolio  securities are denominated can offset net
investment income.

    Because  the  fund is  designed  for U.S.  investors  seeking  currency  and
interest  rate  diversification,  JPMIM  limits  its use of  hedging  strategies
intended  to  minimize  the effect of currency  fluctuations.  Although  hedging
strategies (if they are successful)  reduce exchange rate risk, they also reduce
the potential for share price appreciation when foreign  currencies  increase in
value relative to the U.S. dollar.

    When JPMIM  considers the U.S.  dollar to be attractive  relative to foreign
currencies,  as  much as 25% of the  fund's  total  assets  may be  hedged  into
dollars. For temporary defensive purposes and under extraordinary  circumstances
(such as significant political events), more than 25% of the fund's total assets
may be hedged in this manner.

   
    In managing the fund's  currency  exposure,  JPMIM will buy and sell foreign
currencies  regularly,  either in the spot  (i.e.,  cash)  market or the forward
market.  Forward foreign currency exchange contracts  ("forward  contracts") are
individually  negotiated and privately  traded between currency traders (usually
large  commercial  banks)  and  their  customers.  In  most  cases,  no  deposit
requirements  exist,  and these  contracts  are  traded  at a net price  without
commission.  Forward  contracts  involve an  obligation  to  purchase  or sell a
specific  currency at an  agreed-upon  price on a future  date.  Most  contracts
expire in less than one year.  The fund may also use  futures  and  options  for
currency  management  purposes.  For more  information  on futures and  options,
please see "Interest Rate Futures Contracts and Options Thereon" on page 10.
    

RISK FACTORS

INVESTING IN FOREIGN SECURITIES

    Investing in securities of foreign issuers generally  involves greater risks
than investing in the securities of domestic  companies.  As with any investment
in  securities,  the value of an  investment in the fund can decrease as well as
increase,  depending  upon a variety of factors  which may affect the values and
income  generated by the fund's  portfolio  securities.  Investments in the fund
should  not  be  considered  a  complete  investment  program  and  may  not  be
appropriate for an individual with limited investment resources or who is unable
to tolerate  fluctuations  in the value of the investment.  Potential  investors
should carefully consider the following factors:

    Currency Risk. The value of the foreign  investments held by the fund may be
significantly  affected by changes in currency  exchange rates. The dollar value
of a foreign  security  generally  decreases  when the value of the dollar rises
against the foreign  currency in which the security is denominated  and tends to
increase when the value of the dollar falls against


PROSPECTUS                              INFORMATION REGARDING THE FUND     7


such currency.  In addition,  the value of fund assets may be affected by losses
and other expenses incurred in converting between various currencies in order to
purchase  and sell foreign  securities  and by currency  restrictions,  exchange
control regulation, currency devaluations and political developments.

    Political and Economic Risk. The economies of many of the countries in which
the fund invests are not as  developed  as the economy of the United  States and
may  be  subject  to  significantly   different  forces.   Political  or  social
instability,  expropriation,  nationalization,  or  confiscatory  taxation,  and
limitations on the removal of funds or other assets, could also adversely affect
the value of  investments.  Further,  the fund may encounter  difficulties or be
unable to pursue legal remedies or obtain judgments in foreign courts.

    Regulatory  Risk.  Foreign  companies  are  generally  not  subject  to  the
regulatory  controls  imposed on U.S.  issuers  and, in  general,  there is less
publicly available  information about foreign securities than is available about
domestic  securities.   Many  foreign  companies  are  not  subject  to  uniform
accounting,   auditing  and  financial   reporting   standards,   practices  and
requirements  comparable to those applicable to domestic companies.  Income from
foreign  securities owned by the fund may be reduced by a withholding tax at the
source which would reduce dividend income payable to shareholders.  See "Taxes,"
page 20.

    Market and Trading Risk.  Brokerage  commission rates in foreign  countries,
which are generally  fixed rather than subject to  negotiation  as in the United
States, are likely to be higher. The securities markets in many of the countries
in which the fund invest will have  substantially  less trading  volume than the
principal U.S. markets.  As a result,  the securities of some companies in these
countries may be less liquid and more volatile than comparable U.S.  securities.
Furthermore,  one securities  broker may represent all or a significant  part of
the trading  volume in a particular  country,  resulting in higher trading costs
and decreased liquidity due to a lack of alternative trading partners.  There is
generally less government regulation and supervision of foreign stock exchanges,
brokers  and  issuers  which  may  make  it  difficult  to  enforce  contractual
obligations.

    Clearance  and  Settlement  Risk.   Foreign  securities  markets  also  have
different clearance and settlement procedures, and in certain markets there have
been times  when  settlements  have been  unable to keep pace with the volume of
securities  transactions,  making it  difficult  to conduct  such  transactions.
Delays in clearance and settlement could result in temporary periods when assets
of the fund are uninvested and no return is earned thereon. The inability of the
fund to  make  intended  security  purchases  due to  clearance  and  settlement
problems  could  cause  the fund to miss  attractive  investment  opportunities.
Inability to dispose of portfolio  securities  due to clearance  and  settlement
problems could result either in losses to the fund due to subsequent declines in
value of the  portfolio  security or, if the fund has entered into a contract to
sell the security, liability to the purchaser.

   
EUROPEAN CURRENCY UNIFICATION

    Many European countries are about to adopt a single European  currency,  the
euro.  Once it has been  determined  which  countries  will  participate  in the
Economic  and Monetary  Union (EMU),  the euro will become legal tender in these
countries  effective January 1, 1999. The countries  currently  participating in
the  EMU  are  Austria,  Belgium,  Finland,  France,  Germany,  Ireland,  Italy,
Luxembourg,  Netherlands, Portugal and Spain. The notable countries missing from
the new unified  currency are Great Britain,  Denmark and Sweden. A new European
Central  Bank (ECB) will be  created  to manage the  monetary  policy of the new
unified  region.  On the same day, the exchange rates will be irrevocably  fixed
between the EMU member countries. National currencies will continue to circulate
until they are replaced by euro coins and bank notes by the middle of 2002.

    This change is likely to  significantly  impact the European capital markets
in which the fund invests. The biggest changes will be the additional risks that
the fund  will  face in  pursuing  its  investment  objective.  All of the risks
described below may increase the fund's share price volatility.

UNCERTAINTIES AS UNIFICATION NEARS

    Taxes.  The IRS has not  determined the proper tax treatment of the currency
conversion,  particularly whether the conversion to the new currency will result
in recognition of gain or loss. There is a risk that the fund's  distribution of
income will be impacted by these tax uncertainties. For example,


8     INFORMATION REGARDING THE FUND           AMERICAN CENTURY INVESTMENTS


recognition of gain or loss on the conversion could result in distributions from
the fund of income for which no cash has been received.

    Volatility  of Currency  Exchange  Rates.  Exchange  rates  between the U.S.
dollar and European currencies (particularly the German mark) will likely become
more volatile and unstable, particularly between now and January 1, 1999.

    Capital Market  Reaction.  Uncertainty in the lead-up to introduction of the
euro may lead to a shift by  institutional  money  managers  away from  European
currencies  and into Swiss francs,  U.S.  dollars or Japanese yen. This reaction
may make markets less liquid and thus more  difficult for the fund to pursue its
investment strategy.

    Conversion Costs.  European issuers of securities in which the fund invests,
particularly  those  that  deal in goods  and  services,  may  face  substantial
conversion  costs.  These costs may not be accurately  anticipated and therefore
present   another  risk  factor  that  may  affect  issuer   profitability   and
creditworthiness.

    Potential for Delay.  Despite all of the  preparations by the  participating
European  countries,  it is still  possible  that  currency  unification  may be
delayed  from its  January  1, 1999,  implementation  date.  Such a delay  could
introduce still more risks, since uncertainty would be increased and there would
be economic costs to unwind some of the  infrastructure  created in anticipation
of the unification.

    Treatment of European Currency Units. The ECU is the currency basket used as
the unit of account by the European Community. While it is not a currency, it is
treated  like one by  capital  markets  for  settlement  purposes.  When the new
European currency is introduced, the value of the ECU will become fixed. Because
the treatment of ECU in some financial contracts is not uniform, their value may
be altered by the event.

    Lack of European  Unanimity.  Because some  European  countries  will not be
participants in the euro, there could be greater volatility in the exchange rate
between these  nonparticipating  countries and new unified currency.  While this
risk  is  particularly  high  between  now and the  effective  date of  currency
unification, it could also remain during the initial periods after unification.

UNCERTAINTIES AFTER UNIFICATION OF CURRENCY

    Contract Continuity.  Some financial contracts may become unenforceable when
the  currencies  are unified.  These  financial  contracts may include bank loan
agreements, master agreements for swaps and other derivatives, master agreements
for foreign exchange and currency option  transactions and debt securities.  The
risk of unenforceability  may arise in a number of ways: For example, a contract
used to hedge against  exchange-rate  volatility  between two EU currencies will
become  "fixed,"  rather than  "variable," as part of the  conversion  since the
currencies have, in effect, disappeared for exchange purposes.

    The  European  Council  and the  State of New  York  have  enacted  laws and
regulations  designed to ensure that  financial  contracts  will  continue to be
enforceable after conversion.  There is no guarantee,  however,  that these laws
will be completely  effective in preventing disputes from arising.  Disputes and
litigation  over  these  contract  issues  could  negatively  impact  the fund's
portfolio  holdings and may create  uncertainties  in the valuation of financial
contracts the fund holds.

    ECB Policymaking.  As the ECB and European market  participants search for a
common  understanding  of policy  targets and  instruments,  interest  rates and
exchange rates could become more volatile.
    

CREDIT QUALITY

    Under normal  circumstances,  the fund invests  exclusively in securities of
issuers rated high quality,  nondollar-denominated government and corporate debt
securities  outside the United  States.  "High  quality" means that the security
must be rated AA or higher, at the time of purchase,  by a nationally recognized
statistical rating agency or considered by JPMIM to be of comparable quality. If
a rating  agency  downgrades a security held by the fund or judges a security to
be less than AA  quality,  the  security  would be sold as quickly  as  possible
without unnecessarily destabilizing the fund's share price or yield.

DOLLAR-WEIGHTED AVERAGE MATURITY

   
    The manager expects the fund's dollar-weighted average portfolio maturity to
range from two to ten years.
    


PROSPECTUS                           INFORMATION REGARDING THE FUND       9


OTHER INVESTMENT PRACTICES, THEIR CHARACTERISTICS
AND RISKS

    For additional  information  regarding the investment practices of the fund,
see the Statement of Additional Information.

PORTFOLIO TURNOVER

   
    The  portfolio  turnover  rates  of the  fund  are  shown  in the  financial
information of this Prospectus.
    

    Investment  decisions  to  purchase  and sell  securities  are  based on the
anticipated  contribution of the security in question to the fund's  objectives.
The manager  believes that the rate of portfolio  turnover is irrelevant when it
or JPMIM  determines  a change  is in order to  achieve  those  objectives  and,
accordingly, the annual portfolio turnover rate cannot be accurately predicted.

   
    The  portfolio  turnover of the fund may be higher than other  mutual  funds
with   similar   investment   objectives.   Higher   turnover   would   generate
correspondingly higher transaction costs that the fund pays directly.  Portfolio
turnover may also affect the character of capital  gains,  if any,  realized and
distributed by the fund since  short-term  capital gains are taxable as ordinary
income.
    

    Transaction  costs are normally  higher for foreign  securities than for U.S
securities; therefore, the fund's anticipated portfolio turnover rate may have a
larger  negative  impact  on total  return  than it  would if the fund  invested
primarily or exclusively in U.S. securities.

WHEN-ISSUED AND FORWARD COMMITMENT AGREEMENTS

   
    The fund may sometimes purchase new issues of securities on a when-issued or
forward  commitment  basis when, in the opinion of the manager,  such  purchases
will  further the  investment  objective of the fund.  The price of  when-issued
securities  is  established  at the time the  commitment  to  purchase  is made.
Delivery  of and  payment for these  securities  typically  occurs 15 to 45 days
after the commitment to purchase. Market rates of interest on debt securities at
the time of  delivery  may be higher or lower than those  contracted  for on the
when-issued security.  Accordingly,  the value of the security may decline prior
to  delivery,  which  could  result in a loss to the fund.  A  separate  account
consisting of cash or  appropriate  liquid assets in an amount at least equal to
the  when-issued  commitments  will  be  established  and  maintained  with  the
custodian. No income will accrue to the fund prior to delivery.
    

INTEREST RATE FUTURES CONTRACTS AND OPTIONS THEREON

   
    The fund may buy or sell  interest rate futures  contracts  relating to debt
securities ("debt futures," i.e., futures relating to indices on types or groups
of bonds)  and  write or buy put and call  options  relating  to  interest  rate
futures contracts.
    

    For options sold, the fund will segregate cash or appropriate  liquid assets
including equity  securities and debt securities of any grade equal to the value
of securities underlying the option unless the option is otherwise covered.

    The fund will  deposit  cash or  appropriate  liquid  assets in a segregated
custodial  account in an amount  equal to the  fluctuating  market value of long
futures  contracts  it has  purchased,  less any  margin  deposited  on its long
position.  It may hold cash or acquire such debt  obligations for the purpose of
making these deposits.

    The fund may use futures and options  transactions to maintain cash reserves
while remaining fully invested,  to facilitate  trading,  to reduce  transaction
costs, or to pursue higher investment  returns when a futures contract is priced
more attractively than its underlying security or index.

   
    Since futures  contracts and options thereon can replicate  movements in the
cash markets for the securities in which the fund invests without the large cash
investments  required for dealing in such markets,  they may subject the fund to
greater and more volatile risks than might  otherwise be the case. The principal
risks related to the use of such instruments are (1) the offsetting  correlation
between  movements in the market  price of the  portfolio  investments  (held or
intended) being hedged and in the price of the futures contract or option may be
imperfect;  (2)  possible  lack of a liquid  secondary  market for  closing  out
futures or option  positions;  (3) the need of additional  portfolio  management
skills  and  techniques;  and  (4)  losses  due to  unanticipated  market  price
movements.  For a hedge to be  completely  effective,  the  price  change of the
hedging instrument should equal the price change of the securities being hedged.
Such equal price changes
    


10     INFORMATION REGARDING THE FUND          AMERICAN CENTURY INVESTMENTS


are not always possible because the investment underlying the hedging instrument
may not be the same investment that is being hedged.

   
    The manager  will attempt to create a closely  correlated  hedge but hedging
activities  may  not  be  completely  successful  in  eliminating  market  value
fluctuation.  The  ordinary  spreads  between  prices  in the cash  and  futures
markets,  due to the differences in the nature of those markets,  are subject to
distortion.  Due to the possibility of distortion, a correct forecast of general
interest  rate  trends  by the  manager  may still  not  result in a  successful
transaction.  The manager may be incorrect in its  expectations as to the extent
of various  interest rate  movements or the time span within which the movements
take place.
    

    See the Statement of Additional  Information for further  information  about
these instruments and their risks.

SHORT-TERM INSTRUMENTS

    For liquidity  purposes,  the fund may invest in  high-quality  money market
instruments with remaining  maturities of one year or less. Such instruments may
include  nondollar-denominated   obligations  of  foreign  governments,  foreign
government agencies,  and supranational  organizations,  as well as high-quality
certificates of deposit.

    The fund may also enter into repurchase  agreements,  collateralized by U.S.
government  securities,  with banks or broker-dealers that are deemed to present
minimal credit risk. Credit risk determinations are made by the manager pursuant
to  guidelines  established  by the Board of Trustees.  A  repurchase  agreement
involves  the purchase of a security  and a  simultaneous  agreement to sell the
security back to the seller at a higher price.  Delays or losses could result if
the other party to the agreement defaults or becomes bankrupt.

   
    The fund may invest up to 5% of its total  assets in any money  market fund,
including  those  advised  by the  manager,  provided  that  the  investment  is
consistent  with the fund's  investment  policies and  restrictions.  The fund's
total investment in money market funds may not exceed 10% of its total assets.
    

SECURITIES LENDING

    In order  to  realize  additional  income,  the fund may lend its  portfolio
securities  to  persons  not  affiliated  with  it  and  who  are  deemed  to be
creditworthy.  Such  loans  must be  secured  continuously  by  cash  collateral
maintained on a current basis in an amount at least equal to the market value of
the securities loaned, or by irrevocable letters of credit. During the existence
of the loan,  the fund must  continue to receive the  equivalent of the interest
and dividends  paid by the issuer on the  securities  loaned and interest on the
investment of the collateral.  The fund must have the right to call the loan and
obtain the  securities  loaned at any time on five days'  notice,  including the
right to call the loan to enable the fund to vote the securities.  This practice
could result in a loss or a delay in recovering the fund's securities.

    The fund may not lend any  security  or make any other loan if, as a result,
more than  33(1)/(3)%  of the fund's total assets would be lent to other parties
in the manner described above.

OTHER TECHNIQUES

    JPMIM may buy other types of securities or employ other portfolio management
techniques on behalf of the fund.  When SEC guidelines  require it to do so, the
fund will set aside cash or appropriate liquid assets in a segregated account to
cover its  obligations.  See the Statement of Additional  Information for a more
detailed  discussion of these  investments and some of the risks associated with
them.

PERFORMANCE ADVERTISING

    From time to time, the fund may advertise performance data. Fund performance
may be shown  by  presenting  one or more  performance  measurements,  including
cumulative  total return or average  annual total  return,  yield and  effective
yield.  Performance data may be quoted separately for the Investor Class and for
the other class offered by the fund.

    Cumulative  total  return data is computed by  considering  all  elements of
return,  including  reinvestment  of dividends and capital gains  distributions,
over a stated  period of time.  Average  annual  total return is  determined  by
computing  the annual  compound  return over a stated  period of time that would
have produced the fund's cumulative total


PROSPECTUS                              INFORMATION REGARDING THE FUND     11


return  over the same period if the fund's  performance  had  remained  constant
throughout.

    A  quotation  of yield  reflects  the  fund's  income  over a stated  period
expressed as a percentage  of the fund's share  price.  The  effective  yield is
calculated in a similar  manner but, when  annualized,  the income earned by the
investment is assumed to be  reinvested.  The  effective  yield will be slightly
higher  than  the  yield  because  of the  compounding  effect  on  the  assumed
reinvestment.

    Yield is  calculated  by adding  over a 30-day  (or  one-month)  period  all
interest and dividend  income (net of fund  expenses)  calculated  on each day's
market  values,  dividing  this  sum  by  the  average  number  of  fund  shares
outstanding  during the period, and expressing the result as a percentage of the
fund's  share  price on the last day of the 30-day (or one  month)  period.  The
percentage is then annualized.  Capital gains and losses are not included in the
calculation.

    Yields are calculated  according to accounting methods that are standardized
in accordance with SEC rules.  Because yield accounting  methods differ from the
methods  used for other  accounting  purposes,  a fund's yield may not equal the
income  paid on its  shares  or the  income  reported  in the  fund's  financial
statements.

    The fund may also include in advertisements data comparing  performance with
the performance of non-related  investment media,  published  editorial comments
and performance  rankings compiled by independent  organizations (such as Lipper
Analytical  Services) and  publications  that monitor the  performance of mutual
funds.  Performance information may be quoted numerically or may be presented in
a table,  graph or other  illustration.  In addition,  fund  performance  may be
compared to well-known indices of market performance.  Fund performance may also
be compared,  on a relative basis,  to the other funds in our fund family.  This
relative  comparison,  which  may be based  upon  historical  or  expected  fund
performance,  volatility  or  other  fund  characteristics,   may  be  presented
numerically,  graphically or in text.  Fund  performance may also be combined or
blended  with  other  funds in our fund  family,  and that  combined  or blended
performance may be compared to the same indices to which individual funds may be
compared.

    All performance  information  advertised by the fund is historical in nature
and is not intended to represent or guarantee future results.  The value of fund
shares when redeemed may be more or less than their original cost.


12      INFORMATION REGARDING THE FUND         AMERICAN CENTURY INVESTMENTS


                HOW TO INVEST WITH AMERICAN CENTURY INVESTMENTS

AMERICAN CENTURY INVESTMENTS

    The  fund  offered  by this  Prospectus  is a part of the  American  Century
Investments  family  of  mutual  funds.  Our  family  provides  a full  range of
investment  opportunities,  from  the  aggressive  equity  growth  funds  in our
Twentieth  Century Group,  to the fixed income funds in our Benham Group, to the
moderate risk and specialty  funds in our American  Century  Group.  Please call
1-800-345-2021  for a  brochure  or  prospectuses  for the  other  funds  in the
American Century Investments family.

   
    To reduce  expenses and  demonstrate  respect for our  environment,  we have
initiated a project  through which we will  eliminate  duplicate  copies of most
financial  reports and  prospectuses  to most  households  and  deliver  account
statements to most households in a single envelope,  even if they have more than
one  account.  If you would like  additional  copies of  financial  reports  and
prospectuses or separate mailing of account statements, please call us.
    

INVESTING IN AMERICAN CENTURY

    The  following  section  explains how to invest in American  Century  funds,
including purchases, redemptions,  exchanges and special services. You will find
more detail about doing  business with us by referring to the Investor  Services
Guide that you will receive when you open an account.

    If  you  own  or  are   considering   purchasing   fund  shares  through  an
employer-sponsored  retirement  plan or through a bank,  broker-dealer  or other
financial  intermediary,  the  following  sections,  as well as the  information
contained  in our Investor  Services  Guide,  may not apply to you.  Please read
"Employer-Sponsored Retirement Plans and Institutional Accounts," page 18.

HOW TO OPEN AN ACCOUNT

    To open an account,  you must complete and sign an  application,  furnishing
your  taxpayer  identification  number.  (You must also certify  whether you are
subject to  withholding  for failing to report  income to the IRS.)  Investments
received without a certified taxpayer identification number will be returned.

    The minimum  investment  is $2,500  ($1,000 for IRA  accounts).  The minimum
investment  requirements may be different for some types of retirement accounts.
Call  one  of our  Investor  Services  Representatives  for  information  on our
retirement  plans,  which are  available for  individual  investors or for those
investing through their employers.

    Please note:  If you register  your account as belonging to multiple  owners
(e.g., as joint  tenants),  you must provide us with specific  authorization  on
your  application  in order for us to accept  written or telephone  instructions
from  a  single  owner.  Otherwise,  all  owners  will  have  to  agree  to  any
transactions  that involve the account  (whether the  transaction  request is in
writing or over the telephone).

    You may invest in the following ways:

BY MAIL

    Send a  completed  application  and  check or money  order  payable  in U.S.
dollars to American Century Investments.

BY WIRE

    You may make your initial  investment by wiring funds.  To do so, call us or
mail  a  completed   application  and  provide  your  bank  with  the  following
information:

*  RECEIVING BANK AND ROUTING NUMBER:
   Commerce Bank, N.A. (101000019)

*  BENEFICIARY (BNF):
   American Century Services Corporation
   4500 Main St., Kansas City, Missouri 64111

*  BENEFICIARY ACCOUNT NUMBER (BNF ACCT):
   2804918

   
*  REFERENCE FOR BENEFICIARY (RFB):
   American  Century  account number into which you are investing.  If more than
   one, leave blank and see Bank to Bank Information on next page.
    

*  ORIGINATOR TO BENEFICIARY (OBI):
   Name and address of owner of account into which you are investing.


PROSPECTUS          HOW TO INVEST WITH AMERICAN CENTURY INVESTMENTS       13


*  BANK TO BANK INFORMATION
   (BBI OR FREE FORM TEXT):

    *    Taxpayer identification or Social Security
         number

    *    If more than one account,  account numbers and amount to be invested in
         each account.

   
    *    Current tax year, previous tax year or rollover  designation if an IRA.
         Specify  whether  traditional  IRA, Roth IRA,  Education IRA,  SEP-IRA,
         SARSEP-IRA, SIMPLE Employer or SIMPLE Employee.
    

BY EXCHANGE

    Call 1-800-345-2021 from 7 a.m. to 7 p.m. Central time to get information on
opening an account by exchanging from another American Century account. See this
page for more information on exchanges.

IN PERSON

    If you prefer to work with a representative  in person,  please visit one of
our Investor Centers, located at:

    4500 Main Street
    Kansas City, Missouri 64111

    4917 Town Center Drive
    Leawood, Kansas 66211

    1665 Charleston Road
    Mountain View, California 94043

    2000 S. Colorado Blvd.
    Denver, Colorado 80222

SUBSEQUENT INVESTMENTS

    Subsequent  investments  may  be  made  by an  automatic  bank,  payroll  or
government direct deposit (see "Automatic Investment Plan," this page) or by any
of  the  methods  below.  The  minimum  investment  requirement  for  subsequent
investments:  $250 for checks submitted without the investment slip portion of a
previous  statement  or  confirmation,  $50 for all  other  types of  subsequent
investments.

BY MAIL

   
    When making subsequent  investments,  enclose your check with the investment
slip portion of a previous statement or confirmation.  If the investment slip is
not available, indicate your name, address and account number on your check or a
separate  piece of paper.  (Please  be aware  that the  investment  minimum  for
subsequent investments is higher without an investment slip.)
    

BY TELEPHONE

    Once your account is open, you may make investments by telephone if you have
authorized us (by choosing "Full Services" on your  application) to draw on your
bank  account.  You may  call an  Investor  Services  Representative  or use our
Automated Information Line.

BY ONLINE ACCESS

    Once  your  account  is open,  you may make  investments  online if you have
authorized us (by choosing "Full Services" on your  application) to draw on your
bank account.

BY WIRE

    You may make  subsequent  investments  by  wire.  Follow  the wire  transfer
instructions on page 13 and indicate your account number.

IN PERSON

   
    You  may  make  subsequent  investments  in  person  at one of our  Investor
Centers. The locations of our Investor Centers are listed on this page.
    

AUTOMATIC INVESTMENT PLAN

    You may  elect on your  application  to make  investments  automatically  by
authorizing us to draw on your bank account regularly.  Such investments must be
at least the  equivalent  of $50 per  month.  You also may  choose an  automatic
payroll or government  direct  deposit.  If you are  establishing a new account,
check the appropriate box under  "Automatic  Investments" on your application to
receive  more  information.  If you  would  like to add a direct  deposit  to an
existing account, please call one of our Investor Services Representatives.

HOW TO EXCHANGE FROM ONE ACCOUNT TO ANOTHER

    As long as you meet any minimum  investment  requirements,  you may exchange
your fund  shares to our other  funds up to six times per year per  account.  An
exchange request will be processed the same day it is received if it is received
before the fund's net asset  values are  calculated,  which is one hour prior to
the close of the New York Stock Exchange for the


14 HOW TO INVEST WITH AMERICAN CENTURY INVESTMENTS  AMERICAN CENTURY INVESTMENTS


funds issued by American  Century Target  Maturities  Trust, and at the close of
the Exchange for all of our other funds.  See "When Share Price Is  Determined,"
page 19.

    For any single exchange,  the shares of each fund being acquired must have a
value of at least $100.  However, we will allow investors to set up an Automatic
Exchange Plan between any two funds in the amount of at least $50 per month. See
our Investor Services Guide for further information about exchanges.

BY MAIL

    You may direct us in writing  to  exchange  your  shares  from one  American
Century account to another. For additional information,  please see our Investor
Services Guide.

BY TELEPHONE

    You can make exchanges over the telephone  (either with an Investor Services
Representative or using our Automated Information Line--see page 16) if you have
authorized  us to  accept  telephone  instructions.  You can  authorize  this by
selecting "Full Services" on your application or by calling us at 1-800-345-2021
to get the appropriate form.

BY ONLINE ACCESS

    You  can  make  exchanges  online  if  you  have  authorized  us  to  accept
instructions  over the  Internet.  You can  authorize  this by  selecting  "Full
Services"  on your  application  or by calling us at  1-800-345-2021  to get the
appropriate form.

HOW TO REDEEM SHARES

    We will  redeem or "buy back" your shares at any time.  Redemptions  will be
made at the next net asset value determined after a complete  redemption request
is received.

    Please note that a request to redeem shares in an IRA or 403(b) plan must be
accompanied  by an  executed  IRS  Form  W-4P  and a reason  for  withdrawal  as
specified by the IRS.

BY MAIL

    Your  written  instructions  to  redeem  shares  may  be  made  either  by a
redemption form,  which we will send to you upon request,  or by a letter to us.
Certain  redemptions  may require a signature  guarantee.  Please see "Signature
Guarantee," page 16.

BY TELEPHONE

    If you have authorized us to accept telephone  instructions,  you may redeem
your shares by calling an Investor Services Representative.

BY CHECK-A-MONTH

    If you have at least a  $10,000  balance  in your  account,  you may  redeem
shares by  Check-A-Month.  A  Check-A-Month  plan  automatically  redeems enough
shares each month to provide  you with a check in an amount you choose  (minimum
$50). To set up a Check-A-Month  plan,  please call to request our Check-A-Month
brochure.

OTHER AUTOMATIC REDEMPTIONS

    If you have at least a $10,000  balance  in your  account,  you may elect to
make  redemptions  automatically by authorizing us to send funds directly to you
or to your account at a bank or other financial institution. To set up automatic
redemptions, call one of our Investor Services Representatives.

REDEMPTION PROCEEDS

    Please  note that  shortly  after a  purchase  of shares is made by check or
electronic  draft (also known as an ACH draft) from your bank, we may wait up to
15 days or longer to send  redemption  proceeds (to allow your purchase funds to
clear).  No interest is paid on the redemption  proceeds after the redemption is
processed but before your redemption proceeds are sent.

    Redemption proceeds may be sent to you in one of the following ways:

BY CHECK

    Ordinarily,  all  redemption  checks will be made payable to the  registered
owner of the shares and will be mailed only to the  address of record.  For more
information, please refer to our Investor Services Guide.

BY WIRE AND ACH

    You may authorize us to transmit  redemption  proceeds by wire or ACH. These
services will be effective 15 days after we receive the authorization.

    Your bank will usually receive wired funds within 48 hours of  transmission.
Funds  transferred  by ACH may be received up to seven days after  transmission.
Wired funds are subject to a $10 fee to cover bank


PROSPECTUS          HOW TO INVEST WITH AMERICAN CENTURY INVESTMENTS   15


wire charges,  which is deducted from  redemption  proceeds.  Once the funds are
transmitted,  the time of receipt and the funds'  availability are not under our
control.

REDEMPTION OF SHARES IN LOW-BALANCE ACCOUNTS

    Whenever  the  shares  held in an  account  have a value  of less  than  the
required  minimum,  a letter will be sent advising you of the necessity to bring
the value of the shares held in the account up to the minimum.  If action is not
taken within 90 days of the letter's  date,  the shares held in the account will
be  redeemed  and  proceeds  from the  redemption  will be sent by check to your
address of record. We reserve the right to increase the investment minimums.

SIGNATURE GUARANTEE

    To protect  your  accounts  from fraud,  some  transactions  will  require a
signature guarantee.  Which transactions will require a signature guarantee will
depend on which  service  options  you elect  when you open  your  account.  For
example, if you choose "In-Writing-Only," a signature guarantee will be required
when:

    *    redeeming more than $25,000; or

    *    establishing or increasing a Check-A-Month or automatic transfer on an
         existing account.

    You may obtain a signature  guarantee from a bank or trust  company,  credit
union,  broker-dealer,  securities  exchange or association,  clearing agency or
savings association, as defined by federal law.

    For a more in-depth explanation of our signature guarantee policy, or if you
live outside the United  States and would like to know how to obtain a signature
guarantee, please consult our Investor Services Guide.

    We reserve the right to require a signature guarantee on any transaction, or
to change this policy at any time.

SPECIAL SHAREHOLDER SERVICES

    We offer  several  service  options to make your  account  easier to manage.
These are listed on the account  application.  Please make note of these options
and  elect  the ones  that are  appropriate  for you.  Be aware  that the  "Full
Services" option offers you the most flexibility. You will find more information
about each of these service options in our Investor Services Guide.

    Our special shareholder services include:

AUTOMATED INFORMATION LINE

    We offer an Automated  Information  Line, 24 hours a day, seven days a week,
at 1-800-345-8765.  By calling the Automated Information Line, you may listen to
fund prices,  yields and total return  figures.  You may also use the  Automated
Information  Line to make  investments  into your accounts (if we have your bank
information  on file) and  obtain  your  share  balance,  value and most  recent
transactions.  If you have authorized us to accept telephone  instructions,  you
also may exchange shares from one fund to another via the Automated  Information
Line.  Redemption  instructions  cannot be given via the  Automated  Information
Line.

ONLINE ACCOUNT ACCESS

   
    You   may   contact   us  24   hours   a  day,   seven   days   a  week   at
www.americancentury.com to access your funds' daily share price, receive updates
on major market indices and view  historical  performance of your funds.  If you
select "Full  Services" on your  application,  you can use your personal  access
code and  Social  Security  number to view your  account  balances  and  account
activity,  make subsequent investments from your bank account or exchange shares
from one fund to another.
    

OPEN ORDER SERVICE

    Through our open order  service,  you may  designate a price at which to buy
shares of a variable-priced fund by exchange from one of our money market funds,
or a price at which to sell shares of a variable-priced  fund by exchange to one
of our money market funds.  The  designated  purchase  price must be equal to or
lower, or the designated sale price equal to or higher, than the variable-priced
fund's net asset value at the time the order is placed.  If the designated price
is  met  within  90  calendar   days,  we  will  execute  your  exchange   order
automatically at that price (or better). Open orders not executed within 90 days
will be canceled.

    If the fund you have selected  deducts a distribution  from its share price,
your order  price will be  adjusted  accordingly  so the  distribution  does not
inadvertently trigger an open order transaction on


16 HOW TO INVEST WITH AMERICAN CENTURY INVESTMENTS  AMERICAN CENTURY INVESTMENTS


your behalf.  If you close or re-register  the account from which the shares are
to be redeemed, your open order will be canceled.

    Because of their time-sensitive nature, open order transactions are accepted
only by  telephone  or in person.  These  transactions  are  subject to exchange
limitations  described  in  each  fund's  prospectus,  except  that  orders  and
cancellations  received  before 2 p.m.  Central time are effective the same day,
and orders or cancellations received after 2 p.m. Central time are effective the
next business day.

TAX-QUALIFIED RETIREMENT PLANS

    The fund is available for your  tax-deferred  retirement plan. Call or write
us and request the appropriate forms for:

    *   Individual Retirement Accounts (IRAs);

    *   403(b)  plans for  employees  of public  school  systems and  non-profit
        organizations; or

    *   Profit  sharing  plans  and  pension  plans for  corporations  and other
        employers.

    If your IRA and  403(b)  accounts  do not total  $10,000,  each  account  is
subject to an annual $10 fee, up to a total of $30 per year.

    You can also transfer your  tax-deferred  plan to us from another company or
custodian. Call or write us for a Request to Transfer form.

IMPORTANT POLICIES REGARDING YOUR INVESTMENTS

    Every  account is subject to policies  that could  affect  your  investment.
Please refer to the Investor  Services Guide for further  information  about the
policies discussed below, as well as further detail about the services we offer.

  (1)    We reserve the right for any reason to suspend  the  offering of shares
         for a  period  of  time,  or to  reject  any  specific  purchase  order
         (including  purchases  by  exchange).  Additionally,  purchases  may be
         refused  if, in the  opinion  of the  manager,  they are of a size that
         would disrupt the management of the fund.

  (2)    We  reserve  the  right  to  make  changes  to  any  stated  investment
         requirements,  including those that relate to purchases,  transfers and
         redemptions.  In addition,  we may also alter,  add to or terminate any
         investor   services  and   privileges.   Any  changes  may  affect  all
         shareholders or only certain series or classes of shareholders.

  (3)    Shares  being  acquired  must be  qualified  for sale in your  state of
         residence.

  (4)    Transactions  requesting  a  specific  price and date,  other than open
         orders, will be refused.  Once you have mailed or otherwise transmitted
         your  transaction  instructions  to us,  they  may not be  modified  or
         canceled.

  (5)    If a transaction request is made by a corporation,  partnership, trust,
         fiduciary,  agent  or  unincorporated   association,  we  will  require
         evidence  satisfactory to us of the authority of the individual  making
         the request.

  (6)    We have established  procedures  designed to assure the authenticity of
         instructions received by telephone. These procedures include requesting
         personal  identification  from callers,  recording telephone calls, and
         providing  written  confirmations  of  telephone  transactions.   These
         procedures are designed to protect  shareholders  from  unauthorized or
         fraudulent  instructions.  If we do not employ reasonable procedures to
         confirm  the  genuineness  of  instructions,  then we may be liable for
         losses due to unauthorized or fraudulent instructions. The company, its
         transfer agent and investment  advisor will not be responsible  for any
         loss due to instructions they reasonably believe are genuine.

  (7)    All   signatures   should  be  exactly  as  the  name  appears  in  the
         registration.  If the owner's name appears in the  registration as Mary
         Elizabeth Jones, she should sign that way and not as Mary E. Jones.

  (8)    Unusual  stock  market  conditions  have  in the  past  resulted  in an
         increase  in  the  number  of  shareholder   telephone  calls.  If  you
         experience  difficulty in reaching us during such periods, you may send
         your transaction instructions by mail, express mail or courier service,
         or you may  visit  one of our  Investor  Centers.  You may also use our
         Automated Information Line if you have requested and received an access
         code and are not attempting to redeem shares.

  (9)    If  you  fail  to  provide  us  with  the  correct  certified  taxpayer
         identification  number, we may reduce any redemption proceeds by $50 to
         cover the penalty the IRS will impose on us


PROSPECTUS               HOW TO INVEST WITH AMERICAN CENTURY INVESTMENTS     17


         for failure to report your correct  taxpayer  identification  number on
         information reports.

  (10)   We will perform special inquiries on shareholder  accounts.  A research
         fee of $15 per hour may be applied.

REPORTS TO SHAREHOLDERS

    At the  end of  each  calendar  quarter,  we will  send  you a  consolidated
statement that summarizes all of your American Century  holdings,  as well as an
individual  statement  for  each  fund you own that  reflects  all  year-to-date
activity in your account.  You may request a statement of your account  activity
at any time.

    With the  exception of most  automatic  transactions,  each time you invest,
redeem,  transfer or exchange  shares,  we will send you a  confirmation  of the
transactions. See the Investor Services Guide for more detail.

    Carefully  review  all the  information  relating  to  transactions  on your
statements  and  confirmations  to ensure that your  instructions  were acted on
properly.  Please notify us immediately in writing if there is an error.  If you
fail to provide  notification  of an error  with  reasonable  promptness,  i.e.,
within 30 days of  non-automatic  transactions  or within 30 days of the date of
your consolidated quarterly statement, in the case of automatic transactions, we
will deem you to have ratified the transaction.

    No later than January  31st of each year,  we will send you reports that you
may use in completing  your U.S.  income tax return.  See the Investor  Services
Guide for more information.

    Each year,  we will send you an annual and a semiannual  report  relating to
your fund, each of which is incorporated herein by reference.  The annual report
includes audited financial  statements and a list of portfolio  securities as of
the  fiscal  year  end.  The  semiannual  report  includes  unaudited  financial
statements  for the first six  months of the fiscal  year,  as well as a list of
portfolio  securities at the end of the period. You also will receive an updated
prospectus at least once each year.  Please read these materials  carefully,  as
they will help you understand your fund.

EMPLOYER-SPONSORED RETIREMENT PLANS AND
INSTITUTIONAL ACCOUNTS

    Information   contained  in  our  Investor   Services   Guide   pertains  to
shareholders  who invest  directly with American  Century rather than through an
employer-sponsored retirement plan or through a financial intermediary.

    If  you  own  or  are   considering   purchasing   fund  shares  through  an
employer-sponsored  retirement  plan,  your  ability to  purchase  shares of the
funds, exchange them for shares of other American Century funds, and redeem them
will depend on the terms of your plan.

    If you  own or are  considering  purchasing  fund  shares  through  a  bank,
broker-dealer,  insurance company or other financial intermediary,  your ability
to purchase,  exchange and redeem shares will depend on your agreement with, and
the policies of, such financial intermediary.

    You may reach one of our Institutional  Service  Representatives  by calling
1-800-345-3533 to request information about our funds and services,  to obtain a
current  prospectus or to get answers to any questions  about our funds that you
are unable to obtain through your plan administrator or financial intermediary.


18 HOW TO INVEST WITH AMERICAN CENTURY INVESTMENTS  AMERICAN CENTURY INVESTMENTS


                    ADDITIONAL INFORMATION YOU SHOULD KNOW

SHARE PRICE

WHEN SHARE PRICE IS DETERMINED

   
    The price of your shares is also  referred to as their net asset value.  Net
asset value is determined  by  calculating  the total value of a fund's  assets,
deducting  total  liabilities  and  dividing  the result by the number of shares
outstanding. For all American Century funds, except the funds issued by American
Century Target  Maturities  Trust, net asset value is determined at the close of
regular trading on each day that the New York Stock Exchange is open,  usually 3
p.m.  Central  time.  The net  asset  values  for  Target  Maturities  funds are
determined one hour prior to the close of the Exchange.
    

    Investments and requests to redeem or exchange shares will receive the share
price next  determined  after  receipt by us of the  investment,  redemption  or
exchange  request.  For example,  investments and requests to redeem or exchange
shares of a fund received by us or one of our agents before the time as of which
the net  asset  value of the fund is  determined,  are  effective  on,  and will
receive the price  determined,  that day.  Investment,  redemption  and exchange
requests received  thereafter are effective on, and receive the price determined
as of the close of the Exchange on the next day the Exchange is open.

   
    Investments  are  considered  received  only when payment is received by us.
Wired funds are  considered  received on the day they are  deposited in our bank
account if they are deposited before the time as of which the net asset value of
the fund is determined.
    

    Investments by telephone pursuant to your prior  authorization to us to draw
on your bank account are considered received at the time of your telephone call.

   
    Investment and transaction  instructions  received by us on any business day
by mail  before  the time as of which the net  asset  value is  determined  will
receive that day's price.  Investments and instructions received after that time
will receive the price determined on the next business day.
    

    If you invest in fund shares through an  employer-sponsored  retirement plan
or  other  financial  intermediary,  it  is  the  responsibility  of  your  plan
recordkeeper or financial  intermediary to transmit your purchase,  exchange and
redemption requests to the fund's transfer agent prior to the applicable cut-off
time for receiving  orders and to make payment for any purchase  transactions in
accordance with the fund's  procedures or any contractual  arrangement  with the
fund or the fund's distributor in order for you to receive that day's price.

   
    We have contractual  relationships with certain financial  intermediaries in
which such intermediaries  represent that they have systems to track the time at
which  investment  orders are  received  and to  segregate  orders  received  at
different times.  Based on these  representations,  the fund has authorized such
intermediaries  and their designees to accept purchase and redemption  orders on
the fund's behalf up to the applicable  cut-off time. The fund will be deemed to
have received such orders upon acceptance by the duly  authorized  intermediary,
and such  orders  will be priced at the fund's net asset  value next  determined
after acceptance on the fund's behalf by such intermediary.
    

HOW SHARE PRICE IS DETERMINED

    The valuation of assets for determining net asset value may be summarized as
follows:

   
    The portfolio  securities of the fund, except as otherwise noted,  listed or
traded on a domestic  securities  exchange  are valued at the last sale price on
that  exchange.  Portfolio  securities  primarily  traded on foreign  securities
exchanges  are  generally  valued  at  the  preceding  closing  values  of  such
securities on the exchange where primarily traded. If no sale is reported, or if
local convention or regulation so provides, the mean of the latest bid and asked
prices is used.  Depending on local convention or regulation,  securities traded
over-the-counter  are priced at the mean of the latest bid and asked prices,  or
at the last sale  price.  When  market  quotations  are not  readily  available,
securities and other assets are valued at fair value as determined in accordance
with procedures adopted by the Board of Trustees.
    


PROSPECTUS                   ADDITIONAL INFORMATION YOU SHOULD KNOW       19


    Debt  securities  not traded on a principal  securities  exchange are valued
through  valuations  obtained from a commercial  pricing  service or at the most
recent  mean of the bid and asked  prices  provided  by  investment  dealers  in
accordance with procedures established by the Board of Trustees.

WHERE TO FIND INFORMATION ABOUT SHARE PRICE

    The net asset  values of the  Investor  Class of the funds are  published in
leading  newspapers daily. The net asset values, as well as yield information on
the fund and all other funds in the  American  Century  family of funds,  may be
obtained by calling us or by accessing our Web site at www.americancentury.com.

DISTRIBUTIONS

   
    The fund expects to declare and pay distributions from net investment income
quarterly, although it may elect not to do so in any given quarter. The fund may
forego a dividend if, for example, net currency losses exceed investment income.
Distributions from net realized securities gains, if any, generally are declared
and paid once a year,  but the fund may make  distributions  on a more  frequent
basis to comply with the distribution requirements of the Internal Revenue Code,
in all  events in a manner  consistent  with the  provisions  of the  Investment
Company  Act.  Note:  When  describing   "distributions"   in  this  Prospectus,
"distributions"   has  the  meaning  of  income  and  realized  securities  gain
distributions.  This  fund  does not  intend to make  return  of  capital  (ROC)
distributions.

    You will  begin to  participate  in the  distributions  the day  after  your
purchase is  effective.  See "When Share Price Is  Determined,"  page 19. If you
redeem  shares,  you will receive the  distribution  declared for the day of the
redemption.  If all shares are redeemed, the distribution on the redeemed shares
will be included with your redemption proceeds.

    Participants in employer-sponsored retirement or savings plans must reinvest
all  distributions.   For  shareholders   investing  through  taxable  accounts,
distributions  will be  reinvested  unless  you elect to  receive  them in cash.
Distributions of less than $10 generally will be reinvested.  Distributions made
shortly  after a  purchase  by check  or ACH may be held up to 15 days.  You may
elect to have distributions on shares held in certain IRAs and 403(b) plans paid
in cash only if you are at least  591/2  years old or  permanently  and  totally
disabled.  Distribution  checks  normally are mailed within seven days after the
record date. Please consult our Investor Services Guide for further  information
regarding your distribution options.

    A  distribution  does not  increase  the value of your  shares or your total
return.  At any given time the value of your shares  includes the  undistributed
net gains, if any, realized by the fund on the sale of portfolio securities, and
undistributed dividends and interest received, less fund expenses.
    

    Because  undistributed gains and dividends are included in the value of your
shares prior to distribution, when they are distributed the value of your shares
will be  reduced  by the  amount  of the  distribution.  If you buy your  shares
through a taxable  account just before the  distribution,  you will pay the full
price for your shares,  and then receive a portion of the purchase price back as
a taxable distribution. See "Taxes," this page.

TAXES

    The fund has elected to be taxed under  Subchapter M of the Internal Revenue
Code,  which means that to the extent its income is distributed to shareholders,
it pays no income taxes.

TAX-DEFERRED ACCOUNTS

    If fund  shares  are  purchased  through  tax-deferred  accounts,  such as a
qualified  employer-sponsored  retirement  or savings  plan,  income and capital
gains  distributions  paid by the fund will  generally not be subject to current
taxation,  but will  accumulate in your account under the plan on a tax-deferred
basis.

    Employer-sponsored  retirement and savings plans are governed by complex tax
rules.  If you elect to participate in your employer's  plan,  consult your plan
administrator,  your plan's  summary plan  description,  or a  professional  tax
advisor   regarding  the  tax   consequences  of   participation  in  the  plan,
contributions to, and withdrawals or distributions from the plan.

TAXABLE ACCOUNTS

    If fund shares are purchased through taxable accounts,  distributions of net
investment income and net short-term capital gains are taxable to you as


20    ADDITIONAL INFORMATION YOU SHOULD KNOW     AMERICAN CENTURY INVESTMENTS


   
ordinary income, except as described below. The dividends from net income of the
fund do not qualify for the 70%  dividends-received  deduction for  corporations
since they are derived from interest income.  Distributions from gains on assets
held greater  than 12 months,  but no more than 18 months (28% Rate Gain) and/or
assets held  greater  than 18 months  (20% Rate Gain) are  taxable as  long-term
capital gains regardless of the length of time you have held the shares on which
such  distributions  are paid.  However,  you should note that any loss realized
upon the sale or  redemption  of  shares  held for six  months  or less  will be
treated  as a  long-term  capital  loss to the  extent  of any  distribution  of
long-term  capital  gain (28% and/or 20% Rate Gain) to you with  respect to such
shares.

    Distributions  are taxable to you  regardless  of whether  they are taken in
cash or reinvested,  even if the value of your shares is below your cost. If you
purchase shares shortly before a distribution,  you must pay income taxes on the
distribution,  even though the value of your investment (plus cash received,  if
any) will not have  increased.  In  addition,  the  share  price at the time you
purchase  shares may  include  unrealized  gains in the  securities  held in the
investment portfolio of the fund. If these portfolio securities are subsequently
sold and the gains are realized,  they will, to the extent not offset by capital
losses, be paid to you as a distribution of capital gains and will be taxable to
you as short-term or long-term capital gains (28% and/or 20% Rate Gain).
    

    In January of the year  following the  distribution,  if you own shares in a
taxable account, you will receive a Form 1099-DIV notifying you of the status of
your distributions for federal income tax purposes.

    Distributions may also be subject to state and local taxes, even if all or a
substantial  part  of  such  distribution  are  derived  from  interest  on U.S.
government  obligations  which,  if you received them directly,  would be exempt
from state income tax. However, most but not all states allow this tax exemption
to pass through to fund  shareholders  when the fund pays  distributions  to its
shareholders.  You should  consult your tax advisor about the tax status of such
distributions in your own state.

    If you have not complied  with certain  provisions  of the Internal  Revenue
Code,  we are  required by federal  law to withhold  and remit to the IRS 31% of
reportable  payments (which may include dividends,  capital gains  distributions
and  redemptions).  Those  regulations  require  you to certify  that the Social
Security number or tax identification number you provide is correct and that you
are not subject to 31% withholding for previous  under-reporting to the IRS. You
will be  asked  to  make  the  appropriate  certification  on your  application.
Payments   reported  by  us  that  omit  your  Social  Security  number  or  tax
identification number will subject us to a penalty of $50, which will be charged
against  your account if you fail to provide the  certification  by the time the
report is filed, and is not refundable.

   
    Redemption of shares of the fund (including  redemptions made in an exchange
transaction)  will be a taxable  transaction for federal income tax purposes and
shareholders  will generally  recognize a gain or loss in an amount equal to the
difference  between  the basis of the shares and the amount  received.  Assuming
that  shareholders hold such shares as a capital asset, the gain or loss will be
a capital gain or loss and will generally be considered long-term subject to tax
at a maximum rate of 28% (28% Rate  Gain/Loss)  if  shareholders  have held such
shares  for a period of more  than 12  months,  but no more  than 18 months  and
long-term  subject  to tax at a maximum  rate of 20%,  minimum  of 10% (20% Rate
Gain/Loss)  if  shareholders  have held such shares for a period of more than 18
months. If a loss is realized on the redemption of fund shares, the reinvestment
in additional  fund shares within 30 days before or after the  redemption may be
subject to the "wash sale" rules of the Internal  Revenue  Code,  resulting in a
postponement of the recognition of such loss for federal income tax purposes.
    

MANAGEMENT

INVESTMENT MANAGEMENT

   
    The  American  Century-Benham  International  Bond Fund,  formerly  known as
"American   Century-Benham   European   Government   Bond  Fund,"  is  the  sole
nondiversified  open-end series of the American Century International Bond Funds
(the "Trust").  Organized as a Massachusetts  business trust on August 28, 1991,
under the laws of the Commonwealth of Massachusetts, the Board of Trustees is
    


PROSPECTUS                  ADDITIONAL INFORMATION YOU SHOULD KNOW     21


   
responsible for managing the business and affairs of the Trust.  Acting pursuant
to an  investment  management  agreement  entered  into with the fund,  American
Century  Investment  Management,  Inc.  serves as the investment  manager of the
fund.  Its  principal  place of business is American  Century  Tower,  4500 Main
Street, Kansas City, Missouri 64111.
    

    The manager has been providing  investment  advisory  services to investment
companies and institutional clients since it was founded in 1958.

   
    The manager supervises and manages the investment  portfolio of the fund and
directs the purchase and sale of its investment securities. It utilizes teams of
portfolio managers, assistant portfolio managers and analysts acting together to
supervise the management of the fund's assets.

    JPMIM is the fund's  investment  subadvisor.  JPMIM is a leading  manager of
pension funds,  institutional accounts, and private accounts, with approximately
$200 billion in assets under  management.  JPMIM makes investment  decisions for
the fund in  accordance  with the fund's  investment  objective,  policies,  and
restrictions  under the  supervision  of the manager and the Board of  Trustees.
JPMIM is a wholly-owned subsidiary of J.P. Morgan & Co. Incorporated.
    

    The portfolio  manager  members of the teams  managing the fund described in
this  Prospectus and their work experience for the last five years are listed as
follows:

   
    DETLER  SCHLICHTER,  Vice  President,  is a fixed  income  Senior  Portfolio
Manager.  He joined J.P. Morgan & Co., Frankfurt in 1990; he has worked at JPMIM
London as a  Portfolio  Manager  since  April of 1996.  Mr.  Schlichter  holds a
Bachelors degree and Master's degree from the University of Bochum.
    

    DOMINIC PEGLER,  Vice President,  is a fixed income  Portfolio  Manager.  He
joined JPMIM London in 1996 after seven years at the Bank of England, serving as
an  economist  and in the  Reserves  Management  Department,  managing  the UK's
foreign  exchange  reserves.  His time at the Bank included a two-year term with
the Directorate of Monetary  Affairs.  Mr. Pegler holds a Bachelor's  degree and
Master's degree in Economics from the London School of Economics.

   
    DAVID SCHROEDER, Vice President, oversees JPMIM's management of the fund and
has done so since  June 1997.  Mr.  Schroeder  is also on the teams that  manage
American    Century-Benham    Inflation-Adjusted    Treasury   Fund,    American
Century-Benham   Intermediate-Term   Treasury  Fund,   American   Century-Benham
Long-Term  Treasury Fund, and the series of American  Century Target  Maturities
Trust.  Mr.  Schroeder  joined the  manager in 1990 as a  Portfolio  Manager and
serves as the group  leader  of the  portfolio  management  teams  which  manage
American Century's U.S. government and international bond funds.

    For subadvisory services, the manager pays JPMIM a monthly fee at the annual
rate of 0.20% of  average  daily  net  assets  up to $200  million  and 0.15% of
average  daily net assets in excess of $200  million.  For the fiscal year ended
December 31, 1997, the manager paid JPMIM subadvisory fees equal to 0.19% of the
fund's average daily net assets.
    

    The  activities  of the manager are subject only to directions of the fund's
Board of  Trustees.  The  manager  pays  all the  expenses  of the  fund  except
brokerage,  taxes,  portfolio  insurance,  interest,  fees and  expenses  of the
non-interested  person  Trustees  (including  counsel  fees)  and  extraordinary
expenses.

    For the services  provided to the fund,  the manager  receives a monthly fee
based on a percentage of the average net assets of the fund.  The annual rate at
which this fee is assessed is determined monthly in a two-step process: First, a
fee rate  schedule is applied to the assets of all of the bond funds  managed by
the  manager  (the  "Investment  Category  Fee").  Second,  a separate  fee rate
schedule  is applied to the  assets of all of the funds  managed by the  manager
(the "Complex  Fee").  The Investment  Category Fee and the Complex Fee are then
added  to  determine  the  unified  management  fee  payable  by the fund to the
manager.  Currently,  the Investment Category Fee for the fund is an annual rate
of 0.54% of the average net assets of the fund.  The Complex Fee is currently an
annual rate of 0.30% of the average net assets of the fund. Further  information
about the calculation of the annual management fee is contained in the Statement
of Additional Information.

    On the first  business day of each month,  the fund pays a management fee to
the  manager  for the  previous  month at the  specified  rate.  The fee for the
previous month is calculated by multiplying the applicable


22    ADDITIONAL INFORMATION YOU SHOULD KNOW     AMERICAN CENTURY INVESTMENTS


fee for the fund by the aggregate  average daily closing value of the fund's net
assets  during the previous  month by a fraction,  the numerator of which is the
number of days in the previous month and the denominator of which is 365 (366 in
leap years).

CODE OF ETHICS

    The Trust and the  manager  have  adopted a Code of Ethics  which  restricts
personal  investing  practices by  employees of the manager and its  affiliates.
Among other  provisions,  the Code of Ethics requires that employees with access
to information about the purchase or sale of securities in the funds' portfolios
obtain  preclearance before executing personal trades. With respect to Portfolio
Managers  and  other  investment   personnel,   the  Code  of  Ethics  prohibits
acquisition  of securities  in an initial  public  offering,  as well as profits
derived from the purchase and sale of the same security within 60 calendar days.
These  provisions  are  designed  to  ensure  that  the  interests  of the  fund
shareholders come before the interests of the people who manage the fund.

TRANSFER AND ADMINISTRATIVE SERVICES

    American  Century  Services  Corporation,  4500 Main  Street,  Kansas  City,
Missouri 64111, acts as transfer agent and  dividend-paying  agent for the fund.
It provides facilities, equipment and personnel to the fund and is paid for such
services by the manager.

   
    Pursuant  to  a  Sub-Administration   Agreement  with  the  manager,   Funds
Distributor,  Inc.  (FDI) serves as the  Co-Administrator  for the fund.  FDI is
responsible  for (i) providing  certain  officers of the fund and (ii) reviewing
and filing  marketing and sales  literature on behalf of the fund.  The fees and
expenses of FDI are paid by the manager out of its management fee.

    Although there is no sales charge levied by the fund, transactions in shares
of the fund may be  executed  by brokers  or  investment  advisors  who charge a
transaction-based  fee or other fee for their  services.  Such  charges may vary
among  broker-dealers and financial advisors,  but in all cases will be retained
by the  broker-dealer  or financial  advisor and not remitted to the fund or the
manager.  You  should be aware of the fact that these  transactions  may be made
directly with American Century without incurring such fees.

    From time to time,  special  services  may be  offered to  shareholders  who
maintain  higher  share  balances  in our family of funds.  These  services  may
include the waiver of minimum investment requirements, expedited confirmation of
shareholder  transactions,  newsletters and a team of personal  representatives.
Any expenses  associated with these special services will be paid by the manager
or its affiliates.

    The manager and the transfer agent are both wholly-owned by American Century
Companies,  Inc. (ACC). James E. Stowers Jr., Chairman of the Board of Directors
of ACC,  controls  ACC by virtue of his  ownership  of a majority  of its common
stock.

YEAR 2000 ISSUES

    Many of the world's computer systems currently cannot properly  recognize or
process  date-sensitive  information  relating to the Year 2000 and beyond.  The
fund depends upon the computer systems of various service  providers,  including
the transfer agent, for its day-to-day operations. Inadequate remediation of the
Year 2000 problem by these service  providers and others with whom they interact
could  have an  adverse  effect on the  fund's  operations,  including  pricing,
securities  trading and settlement,  and the provision of shareholder  services.
The transfer agent has assembled a team of information technology  professionals
who are  taking  steps to  address  Year 2000  issues  with  respect  to its own
computers and to obtain satisfactory  assurances that comparable steps are being
taken by the fund's other major service providers and vendors. The key phases of
the  remediation  plan  include:  an inventory of all internal  systems,  vendor
products and services and data providers  (substantially  completed in 1997); an
assessment  of all  systems  for date  reliance  and the  impact of the  century
rollover on each  (substantially  completed with respect to critical  systems in
early 1998);  and the renovation and testing of affected  systems  (targeted for
completion  with  respect to critical  systems by the end of 1998).  The manager
will pay for the  remediation  effort with revenues from its management  fee, so
that  the  fund  will  not  directly  bear  any of the  cost.  In light of these
remediation  efforts,  the fund does not anticipate a material adverse impact on
its business, operations or financial condition relating to Year 2000 issues.
    


PROSPECTUS                    ADDITIONAL INFORMATION YOU SHOULD KNOW      23


   
However,  there can be no assurance that the remediation plan will be sufficient
and timely or that interaction with other noncomplying computer systems will not
have a material adverse effect on the fund's  business,  operations or financial
condition.
    

DISTRIBUTION OF FUND SHARES

   
    The fund's shares are  distributed by FDI, a registered  broker-dealer  (the
"Distributor").   FDI  is  a   wholly-owned   indirect   subsidiary   of  Boston
Institutional  Group, Inc. FDI's principal  business address is 60 State Street,
Suite 1300, Boston, Massachusetts 02109.

    Investors  may  open  accounts  with  American   Century  only  through  the
Distributor.  All purchase  transactions  in the fund offered by this Prospectus
are  processed  by the  transfer  agent,  which  is  authorized  to  accept  any
instructions relating to fund accounts.  All purchase orders must be accepted by
the Distributor.

    The manager (or an  affiliate)  pays all expenses  incurred in promoting and
distributing the Investor Class of fund shares offered by this  Prospectus.  The
Investor  Class of shares  does not pay any  commissions  or sales  loads to the
distributor  or to any  other  broker-dealers  or  financial  intermediaries  in
connection with the distribution of fund shares.
    

FURTHER INFORMATION ABOUT AMERICAN CENTURY

   
    The Trust is an open-end  management  investment  company.  Its business and
affairs  are  managed  by its  officers  under  the  direction  of its  Board of
Trustees.
    

    The  principal  office of the Trust is  American  Century  Tower,  4500 Main
Street, P. O. Box 419200, Kansas City, Missouri 64141-6200. All inquiries may be
made by mail to that address,  or by telephone to 1-800-345-2021  (international
calls: 816-531-5575).

    The fund is an  individual  series of the Trust which issues  shares with no
par value. Each series is commonly referred to as a fund. Currently, the fund is
the only existing series of the Trust.  In the event that  additional  series of
the Trust are  created,  the assets  belonging to each series of shares are held
separately by the custodian and in effect each series is a separate fund.

    American  Century  International  Bond Funds  offers two classes of the fund
offered by this  Prospectus:  an Investor Class and an Advisor Class. The shares
offered by this  Prospectus  are  Investor  Class  shares  and have no  up-front
charges, commissions or 12b-1 fees.

    The Advisor Class of shares is primarily offered to institutional  investors
or through  institutional  distributions  channels,  such as  employer-sponsored
retirement plans or through banks, broker-dealers,  insurance companies or other
financial intermediaries.  This other class has different fees, expenses, and/or
minimum  investment  requirements than the Investor Class. The difference in the
fee structures  among the classes is the result of their  separate  arrangements
for shareholder and  distribution  services and not the result of any difference
in  amounts  charged  by the  manager  for core  investment  advisory  services.
Accordingly,  the  core  investment  advisory  expenses  do not  vary by  class.
Different fees and expenses will affect performance.  For additional information
concerning the Advisor Class of shares not offered by this Prospectus,  call one
of our Investor Services Representatives at 1-800-345-2021.

    Except as described  below,  all classes of shares of a fund have  identical
voting,  dividend,   liquidation  and  other  rights,  preferences,   terms  and
conditions.  The only  differences  among the various classes are (a) each class
may be subject to different  expenses specific to that class, (b) each class has
a different identifying designation or name, (c) each class has exclusive voting
rights with respect to matters solely  affecting such class,  and (d) each class
may have different exchange privileges.

    Each  share,  irrespective  of series or class,  is entitled to one vote for
each dollar of net asset value applicable to such share on all questions, except
for those  matters  which must be voted on  separately by the series or class of
shares affected.  Matters affecting only one series or class are voted upon only
by that series or class.

    Shares have  non-cumulative  voting rights,  which means that the holders of
more than 50% of the votes cast in an election of Trustees  can elect all of the
Trustees if they choose to do so, and in such event the holders of the remaining
votes will not be able to elect any person or persons to the Board of Trustees.

    Unless required by the Investment  Company Act, it will not be necessary for
the Trust to hold annual meetings of shareholders. As a result, shareholders


24    ADDITIONAL INFORMATION YOU SHOULD KNOW     AMERICAN CENTURY INVESTMENTS


may not vote  each  year on the  election  of  Trustees  or the  appointment  of
auditors.  However,  pursuant  to the  Trust's  by-laws,  the  holders of shares
representing  at least 10% of the votes entitled to be cast may request that the
Trust hold a special  meeting  of  shareholders.  The Trust  will  assist in the
communication with other shareholders.

    WE RESERVE THE RIGHT TO CHANGE ANY OF OUR POLICIES, PRACTICES AND PROCEDURES
DESCRIBED IN THIS PROSPECTUS, INCLUDING THE STATEMENT OF ADDITIONAL INFORMATION,
WITHOUT  SHAREHOLDER  APPROVAL  EXCEPT  IN  THOSE  INSTANCES  WHERE  SHAREHOLDER
APPROVAL IS EXPRESSLY REQUIRED.

    THIS PROSPECTUS  CONSTITUTES AN OFFER TO SELL SECURITIES OF THE FUND ONLY IN
THOSE STATES WHERE THE FUND'S SHARES HAVE BEEN REGISTERED OR OTHERWISE QUALIFIED
FOR SALE. THE FUND WILL NOT ACCEPT  APPLICATIONS FROM PERSONS RESIDING IN STATES
WHERE THE FUND'S SHARES ARE NOT REGISTERED.


PROSPECTUS                   ADDITIONAL INFORMATION YOU SHOULD KNOW       25


P.O. BOX 419200
KANSAS CITY, MISSOURI
64141-6200

INVESTOR SERVICES:
1-800-345-2021 OR 816-531-5575

AUTOMATED INFORMATION LINE:
1-800-345-8765

TELECOMMUNICATIONS DEVICE FOR THE DEAF:
1-800-634-4113 OR 816-444-3485

FAX: 816-340-7962

   
www.americancentury.com
    

                        [american century logo (reg.sm)]
                                    American
                                Century(reg.tm)

   
9805           [recycled logo]
SH-BKT-11965      Recycled
<PAGE>
    
                                   PROSPECTUS

                        [american century logo (reg.sm)]
                                    American
                                Century(reg.tm)

   
                                  MAY 1, 1998
    

                                    BENHAM
                                 GROUP(reg.tm)

                              International Bond

ADVISOR CLASS


                         AMERICAN CENTURY INVESTMENTS
                                FAMILY OF FUNDS

    American  Century  Investments  offers you nearly 70 fund  choices  covering
stocks, bonds, money markets,  specialty investments and blended portfolios.  To
help you find the funds that may meet your investment  needs,  American  Century
funds  have  been  divided  into  three  groups  based on  investment  style and
objectives. These groups, which appear below, are designed to help simplify your
fund decisions.

   
                          AMERICAN CENTURY INVESTMENTS
- -------------------------------------------------------------------------------
        Benham                American Century          Twentieth Century
        Group                      Group                      Group
- -------------------------------------------------------------------------------
   MONEY MARKET FUNDS         ASSET ALLOCATION &           GROWTH FUNDS
 GOVERNMENT BOND FUNDS          BALANCED FUNDS          INTERNATIONAL FUNDS
 DIVERSIFIED BOND FUNDS   CONSERVATIVE EQUITY FUNDS
  MUNICIPAL BOND FUNDS         SPECIALTY FUNDS
- -------------------------------------------------------------------------------
  International Bond


                                  PROSPECTUS
                                  MAY 1, 1998
    

                              International Bond

                                 ADVISOR CLASS

                   AMERICAN CENTURY INTERNATIONAL BOND FUNDS

   
    American  Century  International  Bond Funds are a part of American  Century
Investments,  a family of funds that  includes  nearly 70 no-load  and  low-load
mutual funds  covering a variety of investment  opportunities.  One of the funds
from our Benham Group that invests in the highest-quality  nondollar-denominated
government and corporate debt  securities is described in this  Prospectus.  Its
investment objective is listed on page 2 of this Prospectus. The other funds are
described in separate prospectuses.
    

    The fund's shares offered in this  Prospectus (the Advisor Class shares) are
sold at their net asset value with no sales charges or commissions.  The Advisor
Class  shares  are  subject  to  a  Rule  12b-1  shareholder  services  fee  and
distribution fee as described in this Prospectus.

    The Advisor  Class  shares are  intended  for  purchase by  participants  in
employer-sponsored retirement or savings plans and for persons purchasing shares
through   broker-dealers,   banks,   insurance  companies  and  other  financial
intermediaries that provide various administrative and distribution services.

   
    This Prospectus  gives you  information  about the fund that you should know
before investing. Please read this Prospectus carefully and retain it for future
reference.  Additional  information  is included in the  Statement of Additional
Information  dated May 1,  1998,  and filed  with the  Securities  and  Exchange
Commission  (SEC).  It is  incorporated  into this  Prospectus by reference.  To
obtain a copy without charge, call or write:

                          AMERICAN CENTURY INVESTMENTS
                       4500 Main Street * P.O. Box 419385
                Kansas City, Missouri 64141-6385 * 1-800-345-3533
                        International calls: 816-531-5575
                     Telecommunications Device for the Deaf:
                   1-800-345-1833 * In Missouri: 816-444-3038
                             www.americancentury.com
    

    Additional  information,  including  this  Prospectus  and the  Statement of
Additional Information,  may be obtained by accessing the Web site maintained by
the SEC (www.sec.gov).

   
    AN  INVESTMENT  IN THE FUND IS NEITHER  INSURED NOR  GUARANTEED  BY THE U.S.
GOVERNMENT.
    

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


PROSPECTUS                                                                  1


                       INVESTMENT OBJECTIVE OF THE FUND

AMERICAN CENTURY -- BENHAM INTERNATIONAL
BOND FUND

    The fund seeks to provide high current  income and capital  appreciation  by
investing in high-quality,  nondollar-denominated  government and corporate debt
securities  outside the United  States.  Prior to October 1, 1997,  the fund was
known as  "American  Century-  Benham  European  Government  Bond  Fund" and its
investment  objective  was "to seek  over the long term as high a level of total
return  as  is  consistent  with  investment  in  the  highest-quality  European
government debt securities."

  There is no assurance that the fund will achieve its investment objective.

NO  PERSON  IS  AUTHORIZED  BY THE  FUND TO GIVE  ANY  INFORMATION  OR MAKE  ANY
REPRESENTATION OTHER THAN THOSE CONTAINED IN THIS PROSPECTUS OR IN OTHER PRINTED
OR WRITTEN  MATERIAL ISSUED BY OR ON BEHALF OF THE FUND, AND YOU SHOULD NOT RELY
ON ANY OTHER INFORMATION OR REPRESENTATION.


2      INVESTMENT OBJECTIVE                   AMERICAN CENTURY INVESTMENTS


                               TABLE OF CONTENTS

Investment Objective of the Fund ..........................................    2
Transaction and Operating Expense Table ...................................    4
Performance Information of Other Class ....................................    5

INFORMATION REGARDING THE FUND

   
Investment Policies of the Fund ...........................................    6
    Investment Objective ..................................................    6
    International Subadvisor ..............................................    6
    Investment Strategy ...................................................    6
    Portfolio Composition .................................................    7
    Currency Management ...................................................    7
Risk Factors ..............................................................    7
    Investing in Foreign Securities .......................................    7
    European Currency Unification .........................................    8
    Credit Quality ........................................................    9
    Dollar-Weighted Average Maturity ......................................    9
Other Investment Practices, Their Characteristics
  and Risks ...............................................................   10
    Portfolio Turnover ....................................................   10
    When-Issued and Forward Commitment
        Agreements ........................................................   10
    Interest Rate Futures Contracts and
        Options Thereon ...................................................   10
    Short-Term Instruments ................................................   11
    Securities Lending ....................................................   11
    Other Techniques ......................................................   11
Performance Advertising ...................................................   11
    

HOW TO INVEST WITH AMERICAN CENTURY INVESTMENTS

How to Purchase
  and Sell American Century Funds .........................................   13
How to Exchange from
  One American Century Fund to Another ....................................   13
How to Redeem Shares ......................................................   13
Telephone Services ........................................................   13
    Investors Line ........................................................   13

ADDITIONAL INFORMATION YOU SHOULD KNOW

   
Share Price ...............................................................   14
    When Share Price Is Determined ........................................   14
    How Share Price Is Determined .........................................   14
    Where to Find Information About Share Price ...........................   15
Distributions .............................................................   15
Taxes .....................................................................   15
    Tax-Deferred Accounts .................................................   15
    Taxable Accounts ......................................................   15
Management ................................................................   16
    Investment Management .................................................   16
    Code of Ethics ........................................................   18
    Transfer and Administrative Services ..................................   18
Year 2000 Issues ..........................................................   18
Distribution of Fund Shares ...............................................   19
    Service and Distribution Fees .........................................   19
Further Information About American Century ................................   19
    


PROSPECTUS                                          TABLE OF CONTENTS       3


                    TRANSACTION AND OPERATING EXPENSE TABLE

                                                                 International
                                                                      Bond

SHAREHOLDER TRANSACTION EXPENSES:

Maximum Sales Load Imposed on Purchases ...........................   none
Maximum Sales Load Imposed on Reinvested Dividends ................   none
Deferred Sales Load ...............................................   none
Redemption Fee ....................................................   none
Exchange Fee ......................................................   none

ANNUAL FUND OPERATING EXPENSES:
(as a percentage of net assets)

Management Fees(1) ................................................  0.59%
12b-1 Fees(2) .....................................................  0.50%
Other Expenses ....................................................  0.03%
Total Fund Operating Expenses .....................................  1.12%

EXAMPLE:

You would pay the following expenses on a                  1 year    $  11
$1,000 investment, assuming a 5% annual return and        3 years       36
redemption at the end of each time period:                5 years       62
                                                         10 years      136

   
(1) A portion of the management fee may be paid by American  Century  Investment
    Management, Inc. to unaffiliated third parties who provide recordkeeping and
    administrative services that would otherwise be performed by an affiliate of
    the manager.  See "Management - Transfer and Administrative  Services," page
    18.

(2) The 12b-1 fee is designed to permit  investors  to  purchase  Advisor  Class
    shares  through   broker-dealers,   banks,  insurance  companies  and  other
    financial  intermediaries.  A portion of the fee is used to compensate  them
    for ongoing  recordkeeping and administrative  services that would otherwise
    be  performed  by an  affiliate  of the  manager,  and a portion  is used to
    compensate  them  for  distribution  and  other  shareholder  services.  See
    "Service and Distribution Fees," page 19.

    The purpose of this table is to help you  understand  the various  costs and
expenses  that you,  as a  shareholder,  will bear  directly  or  indirectly  in
connection with an investment in the class of shares offered by this Prospectus.
The  example  set  forth  above  assumes   reinvestment  of  all  dividends  and
distributions  and  uses  a  5%  annual  rate  of  return  as  required  by  SEC
regulations.
    

    NEITHER  THE 5% RATE OF  RETURN  NOR THE  EXPENSES  SHOWN  ABOVE  SHOULD  BE
CONSIDERED  INDICATIONS OF PAST OR FUTURE  RETURNS AND EXPENSES.  ACTUAL RETURNS
AND EXPENSES MAY BE GREATER OR LESS THAN THOSE SHOWN.

   
    The shares  offered by this  Prospectus  are Advisor Class shares.  The fund
offers one other  class of shares,  primarily  to retail  investors,  that has a
different  fee  structure  than the Advisor  Class.  The  difference  in the fee
structures  among the classes is the result of their separate  arrangements  for
shareholder  and  distribution  services and not the result of any difference in
amounts  charged  by  the  manager  for  core  investment   advisory   services.
Accordingly,  the core  investment  advisory  expenses  do not vary by class.  A
difference in fees will result in different  performance for those classes.  For
additional information about the various classes, see "Further Information About
American Century," page 19.


4    TRANSACTION AND OPERATING EXPENSE TABLE      AMERICAN CENTURY INVESTMENTS


<TABLE>
<CAPTION>
                    PERFORMANCE INFORMATION OF OTHER CLASS
                              INTERNATIONAL BOND

  The Advisor Class of the fund was  established  October 1, 1997;  however,  no
shares  had been  issued  prior to the fund's  fiscal  year end.  The  financial
information  in this  table  regarding  selected  per  share  data  for the fund
reflects the  performance of the fund's  Investor  Class of shares,  which has a
total expense ratio that is 0.25% lower than the Advisor Class.  Had the Advisor
Class been in existence for the time periods  presented,  the fund's performance
results would be lower as a result of the additional expense.

  The  performance  information  for the year ended  December 31, 1997, has been
audited  by  Coopers & Lybrand  L.L.P.,  independent  accountants  whose  report
thereon appears in the fund's annual report,  which is incorporated by reference
into the Statement of Additional  Information.  The performance  information for
the periods  ended on or before  December  31,  1996,  has been audited by other
independent  accountants.  The annual  report  contains  additional  performance
information  and will be made  available  upon request and without  charge.  The
information  presented  is for a share  outstanding  throughout  the years ended
December 31, except as noted.

                                              1997         1996           1995          1994          1993         1992(1)

PER-SHARE DATA

Net Asset Value,
<S>                                          <C>          <C>            <C>           <C>           <C>           <C>   
Beginning of Period .......................  $11.79       $11.95         $10.36        $10.82        $10.01        $10.00
                                            --------     --------       --------      --------      --------      --------
Income From Investment Operations

  Net Investment Income ...................   0.65         0.69           0.61          0.78          0.69          0.79

  Net Realized and Unrealized Gain
  (Loss) on Investment Transactions .......  (1.34)        0.03           1.88         (0.63)         0.49          0.38
                                            --------     --------       --------      --------      --------      --------
  Total From Investment Operations ........  (0.69)        0.72           2.49          0.15          1.18          1.17
                                            --------     --------       --------      --------      --------      --------
Distributions

  From Net Investment Income ..............  (0.04)       (0.71)         (0.90)        (0.60)        (0.37)        (0.66)

  In Excess of Net Investment Income ......    --         (0.02)           --            --            --            --

  From Net Realized Gains on
  Investment Transactions .................  (0.14)       (0.15)           --          (0.01)          --          (0.50)
                                            --------     --------       --------      --------      --------      --------
  Total Distributions .....................  (0.18)       (0.88)         (0.90)        (0.61)        (0.37)        (1.16)
                                            --------     --------       --------      --------      --------      --------
Net Asset Value, End of Period ............  $10.92       $11.79         $11.95        $10.36        $10.82        $10.01
                                            ========     ========       ========      ========      ========      ========
  TOTAL RETURN(2) .........................  (5.88)%       6.38%         24.40%         1.52%        11.79%         7.08%

RATIOS/SUPPLEMENTAL DATA

Ratio of Operating Expenses
to Average Net Assets .....................   0.84%        0.83%          0.82%         0.86%         0.85%       0.51%(3)

Ratio of Net Investment Income
to Average Net Assets .....................   4.82%        5.48%          6.14%         6.09%         6.27%       7.59%(3)

Portfolio Turnover Rate ...................   163%         242%           167%          166%          310%          252%

Net Assets, End of Period (in thousands) .. $165,731     $252,456       $252,247      $194,301      $355,615      $337,043
- ----------

(1) January 7, 1992 (inception) through December 31, 1992.

(2) Total  return   assumes   reinvestment   of  dividends   and  capital  gains
    distributions,  if any. Total returns for periods less than one year are not
    annualized.

(3) Annualized.
</TABLE>
    

PROSPECTUS                      PERFORMANCE INFORMATION OF OTHER CLASS       5


                        INFORMATION REGARDING THE FUND

INVESTMENT POLICIES OF THE FUND

    The fund has adopted certain  investment  restrictions that are set forth in
the  Statement of Additional  Information.  Those  restrictions,  as well as the
investment objective of the fund identified on page 2 of this Prospectus and any
other investment  policies  designated as "fundamental" in this Prospectus or in
the Statement of Additional  Information,  cannot be changed without shareholder
approval.  The fund has implemented additional investment policies and practices
to guide its  activities  in the  pursuit  of its  investment  objective.  These
policies and practices,  which are described throughout this Prospectus, are not
designated  as  fundamental  policies  and may be  changed  without  shareholder
approval.

    For an explanation of the  securities  ratings  referred to in the following
discussion, see "Other Information" in the Statement of Additional Information.

INVESTMENT OBJECTIVE

    The fund seeks to provide high current  income and capital  appreciation  by
investing in high-quality,  nondollar-denominated  government and corporate debt
securities  outside the United States.  There is no assurance that the fund will
achieve its investment  objective.  The fund is a  "non-diversified  company" as
defined in the Investment  Company Act of 1940 (the  "Investment  Company Act"),
which means that the proportion of the fund's assets that may be invested in the
securities of a single issuer is not limited by the Investment Company Act.

    The fund may be appropriate for U.S. investors who:

    *   Want to protect their income against a decline in the  purchasing  power
        of the U.S. dollar relative to that of foreign currencies.

    *   Want to  diversify  their  investments  beyond  U.S.  dollar-denominated
        securities and interest rate exposure.

    As market conditions change (i.e.,  interest rate,  political,  and economic
changes  occur),  the fund's  value will vary.  The fund's  performance  will be
affected by currency values,  foreign  economies,  and other foreign  investment
factors.

INTERNATIONAL SUBADVISOR

    J.P. Morgan Investment  Management Inc. (JPMIM) is the fund's subadvisor and
is responsible for its day-to-day operations. JPMIM is headquartered in New York
and maintains offices in most of the world's financial centers, including London
and Frankfurt.

INVESTMENT STRATEGY

    JPMIM selects the fund's  investments  by using a combination of fundamental
research  and bond and  currency  valuation  models.  The  following  is a brief
summary of factors considered by JPMIM in selecting the fund's investments:

    *   ECONOMIC/POLITICAL FUNDAMENTALS: JPMIM evaluates each country's economic
        climate and political discipline for controlling deficits and inflation.

    *   EXPECTED RETURN:  Using economic forecasts,  JPMIM projects the expected
        return for each country.

    *   RELATIVE   VALUE:   By  contrasting   expected  risks  and  returns  for
        investments in each country,  JPMIM selects those countries  expected to
        produce the best return at reasonable risk.

    The fund's  investments  may  include  but shall not be limited to: (1) Debt
obligations issued or guaranteed by (a) a foreign sovereign government or one of
its agencies, authorities, instrumentalities or political subdivisions including
a foreign state, province or municipality,  and (b) supranational  organizations
such as the World Bank, Asian  Development Bank,  European  Investment Bank, and
European Economic Community;  (2) Debt obligations of (a) foreign banks and bank
holding  companies,  and (b) domestic banks and  corporations  issued in foreign
currencies;  and (3) Foreign corporate debt securities and commercial paper. All
of these  investments must satisfy the credit quality  standards (i.e.,  "AA" or
higher) established by the Trustees of the fund.


6     INFORMATION REGARDING THE FUND         AMERICAN CENTURY INVESTMENTS


    Such  securities may take a variety of forms  including  those issued in the
local currency of the issuer,  Euro bonds, and bonds denominated in the European
currencies or ECUs. ECUs are a composite currency consisting of fixed amounts of
currency of European  Economic  Community member countries.  Normally,  the fund
will only purchase bonds denominated in foreign currencies.

PORTFOLIO COMPOSITION

    Under  normal  market  conditions,  the fund will invest at least 65% of its
total  assets in bonds  issued or  guaranteed  by foreign  governments  or their
agencies and by foreign authorities,  provinces and municipalities. The fund may
invest  up to 35% of its total  assets  in  high-quality  (i.e.,  rated  "AA" or
higher) foreign corporate debt securities.

   
    The fund's credit quality  requirements  effectively  limit the countries in
which the fund may invest.  As of the date of this Prospectus,  the fund expects
to invest  in the  securities  of  issuers  located  in and  governments  of the
following countries:  Australia,  Austria,  Belgium,  Canada, Denmark,  Finland,
France, Germany, Ireland, Japan,  Liechtenstein,  Luxembourg,  Netherlands,  New
Zealand, Norway, Portugal,  Singapore, Spain, Sweden,  Switzerland,  Taiwan, and
United  Kingdom.  To limit  the  possibility  that the fund will  become  unduly
concentrated  in Japan,  the fund  currently  limits its  investment  in issuers
located in Japan to no more than 15% of total assets.
    

CURRENCY MANAGEMENT

    The rate of exchange between U.S. dollars and foreign currencies fluctuates,
which  results  in gains  and  losses to the fund.  Even if the  fund's  foreign
security  holdings perform well, an increase in the value of the dollar relative
to the currencies in which  portfolio  securities are denominated can offset net
investment income.

    Because  the  fund is  designed  for U.S.  investors  seeking  currency  and
interest  rate  diversification,  JPMIM  limits  its use of  hedging  strategies
intended  to  minimize  the effect of currency  fluctuations.  Although  hedging
strategies (if they are successful)  reduce exchange rate risk, they also reduce
the potential for share price appreciation when foreign  currencies  increase in
value relative to the U.S. dollar.

    When JPMIM  considers the U.S.  dollar to be attractive  relative to foreign
currencies,  as  much as 25% of the  fund's  total  assets  may be  hedged  into
dollars. For temporary defensive purposes and under extraordinary  circumstances
(such as significant political events), more than 25% of the fund's total assets
may be hedged in this manner.

   
    In managing the fund's  currency  exposure,  JPMIM will buy and sell foreign
currencies  regularly,  either in the spot  (i.e.,  cash)  market or the forward
market.  Forward foreign currency exchange contracts  ("forward  contracts") are
individually  negotiated and privately  traded between currency traders (usually
large  commercial  banks)  and  their  customers.  In  most  cases,  no  deposit
requirements  exist,  and these  contracts  are  traded  at a net price  without
commission.  Forward  contracts  involve an  obligation  to  purchase  or sell a
specific  currency at an  agreed-upon  price on a future  date.  Most  contracts
expire in less than one year.  The fund may also use  futures  and  options  for
currency  management  purposes.  For more  information  on futures and  options,
please see "Interest Rate Futures Contracts and Options Thereon" on page 10.
    

RISK FACTORS

INVESTING IN FOREIGN SECURITIES

    Investing in securities of foreign issuers generally  involves greater risks
than investing in the securities of domestic  companies.  As with any investment
in  securities,  the value of an  investment in the fund can decrease as well as
increase,  depending  upon a variety of factors  which may affect the values and
income  generated by the fund's  portfolio  securities.  Investments in the fund
should  not  be  considered  a  complete  investment  program  and  may  not  be
appropriate for an individual with limited investment resources or who is unable
to tolerate  fluctuations  in the value of the investment.  Potential  investors
should carefully consider the following factors:

    Currency Risk. The value of the foreign  investments held by the fund may be
significantly  affected by changes in currency  exchange rates. The dollar value
of a foreign  security  generally  decreases  when the value of the dollar rises
against the foreign  currency in which the security is denominated  and tends to
increase when the value of the dollar falls against


PROSPECTUS                              INFORMATION REGARDING THE FUND     7


such currency.  In addition,  the value of fund assets may be affected by losses
and other expenses incurred in converting between various currencies in order to
purchase  and sell foreign  securities  and by currency  restrictions,  exchange
control regulation, currency devaluations and political developments.

    Political and Economic Risk. The economies of many of the countries in which
the fund invests are not as  developed  as the economy of the United  States and
may  be  subject  to  significantly   different  forces.   Political  or  social
instability,  expropriation,  nationalization,  or  confiscatory  taxation,  and
limitations on the removal of funds or other assets, could also adversely affect
the value of  investments.  Further,  the fund may encounter  difficulties or be
unable to pursue legal remedies or obtain judgments in foreign courts.

    Regulatory  Risk.  Foreign  companies  are  generally  not  subject  to  the
regulatory  controls  imposed on U.S.  issuers  and, in  general,  there is less
publicly available  information about foreign securities than is available about
domestic  securities.   Many  foreign  companies  are  not  subject  to  uniform
accounting,   auditing  and  financial   reporting   standards,   practices  and
requirements  comparable to those applicable to domestic companies.  Income from
foreign  securities owned by the fund may be reduced by a withholding tax at the
source which would reduce dividend income payable to shareholders.  See "Taxes,"
page 15.

    Market and Trading Risk.  Brokerage  commission rates in foreign  countries,
which are generally  fixed rather than subject to  negotiation  as in the United
States, are likely to be higher. The securities markets in many of the countries
in which the fund invest will have  substantially  less trading  volume than the
principal U.S. markets.  As a result,  the securities of some companies in these
countries may be less liquid and more volatile than comparable U.S.  securities.
Furthermore,  one securities  broker may represent all or a significant  part of
the trading  volume in a particular  country,  resulting in higher trading costs
and decreased liquidity due to a lack of alternative trading partners.  There is
generally less government regulation and supervision of foreign stock exchanges,
brokers  and  issuers  which  may  make  it  difficult  to  enforce  contractual
obligations.

    Clearance  and  Settlement  Risk.   Foreign  securities  markets  also  have
different clearance and settlement procedures, and in certain markets there have
been times  when  settlements  have been  unable to keep pace with the volume of
securities  transactions,  making it  difficult  to conduct  such  transactions.
Delays in clearance and settlement could result in temporary periods when assets
of the fund are uninvested and no return is earned thereon. The inability of the
fund to  make  intended  security  purchases  due to  clearance  and  settlement
problems  could  cause  the fund to miss  attractive  investment  opportunities.
Inability to dispose of portfolio  securities  due to clearance  and  settlement
problems could result either in losses to the fund due to subsequent declines in
value of the  portfolio  security or, if the fund has entered into a contract to
sell the security, liability to the purchaser.

   
EUROPEAN CURRENCY UNIFICATION

    Many European countries are about to adopt a single European  currency,  the
euro.  Once it has been  determined  which  countries  will  participate  in the
Economic  and Monetary  Union (EMU),  the euro will become legal tender in these
countries  effective January 1, 1999. The countries  currently  participating in
the  EMU  are  Austria,  Belgium,  Finland,  France,  Germany,  Ireland,  Italy,
Luxembourg,  Netherlands, Portugal and Spain. The notable countries missing from
the new unified  currency are Great Britain,  Denmark and Sweden. A new European
Central  Bank (ECB) will be  created  to manage the  monetary  policy of the new
unified  region.  On the same day, the exchange rates will be irrevocably  fixed
between the EMU member countries. National currencies will continue to circulate
until they are replaced by euro coins and bank notes by the middle of 2002.

    This change is likely to  significantly  impact the European capital markets
in which the fund invests. The biggest changes will be the additional risks that
the fund  will  face in  pursuing  its  investment  objective.  All of the risks
described below may increase the fund's share price volatility.

UNCERTAINTIES AS UNIFICATION NEARS

    Taxes.  The IRS has not  determined the proper tax treatment of the currency
conversion,  particularly whether the conversion to the new currency will result
in recognition of gain or loss. There is a risk that the fund's  distribution of
income will be impacted by these tax uncertainties. For example,


8    INFORMATION REGARDING THE FUND              AMERICAN CENTURY INVESTMENTS


recognition of gain or loss on the conversion could result in distributions from
the fund of income for which no cash has been received.

    Volatility  of Currency  Exchange  Rates.  Exchange  rates  between the U.S.
dollar and European currencies (particularly the German mark) will likely become
more volatile and unstable, particularly between now and January 1, 1999.

    Capital Market  Reaction.  Uncertainty in the lead-up to introduction of the
euro may lead to a shift by  institutional  money  managers  away from  European
currencies  and into Swiss francs,  U.S.  dollars or Japanese yen. This reaction
may make markets less liquid and thus more  difficult for the fund to pursue its
investment strategy.

    Conversion Costs.  European issuers of securities in which the fund invests,
particularly  those  that  deal in goods  and  services,  may  face  substantial
conversion  costs.  These costs may not be accurately  anticipated and therefore
present   another  risk  factor  that  may  affect  issuer   profitability   and
creditworthiness.

    Potential for Delay.  Despite all of the  preparations by the  participating
European  countries,  it is still  possible  that  currency  unification  may be
delayed  from its  January  1, 1999,  implementation  date.  Such a delay  could
introduce still more risks, since uncertainty would be increased and there would
be economic costs to unwind some of the  infrastructure  created in anticipation
of the unification.

    Treatment of European Currency Units. The ECU is the currency basket used as
the unit of account by the European Community. While it is not a currency, it is
treated  like one by  capital  markets  for  settlement  purposes.  When the new
European currency is introduced, the value of the ECU will become fixed. Because
the treatment of ECU in some financial contracts is not uniform, their value may
be altered by the event.

    Lack of European  Unanimity.  Because some  European  countries  will not be
participants in the euro, there could be greater volatility in the exchange rate
between these  nonparticipating  countries and new unified currency.  While this
risk  is  particularly  high  between  now and the  effective  date of  currency
unification, it could also remain during the initial periods after unification.

UNCERTAINTIES AFTER UNIFICATION OF CURRENCY

    Contract Continuity.  Some financial contracts may become unenforceable when
the  currencies  are unified.  These  financial  contracts may include bank loan
agreements, master agreements for swaps and other derivatives, master agreements
for foreign exchange and currency option  transactions and debt securities.  The
risk of unenforceability  may arise in a number of ways: For example, a contract
used to hedge against  exchange-rate  volatility  between two EU currencies will
become  "fixed,"  rather than  "variable," as part of the  conversion  since the
currencies have, in effect, disappeared for exchange purposes.

    The  European  Council  and the  State of New  York  have  enacted  laws and
regulations  designed to ensure that  financial  contracts  will  continue to be
enforceable after conversion.  There is no guarantee,  however,  that these laws
will be completely  effective in preventing disputes from arising.  Disputes and
litigation  over  these  contract  issues  could  negatively  impact  the fund's
portfolio  holdings and may create  uncertainties  in the valuation of financial
contracts the fund holds.

    ECB Policymaking.  As the ECB and European market  participants search for a
common  understanding  of policy  targets and  instruments,  interest  rates and
exchange rates could become more volatile.
    

CREDIT QUALITY

    Under normal  circumstances,  the fund invests  exclusively in securities of
issuers rated high quality,  nondollar-denominated government and corporate debt
securities  outside the United  States.  "High  quality" means that the security
must be rated AA or higher, at the time of purchase,  by a nationally recognized
statistical rating agency or considered by JPMIM to be of comparable quality. If
a rating  agency  downgrades a security held by the fund or judges a security to
be less than AA  quality,  the  security  would be sold as quickly  as  possible
without unnecessarily destabilizing the fund's share price or yield.

DOLLAR-WEIGHTED AVERAGE MATURITY

   
    The manager expects the fund's dollar-weighted average portfolio maturity to
range from two to ten years.
    


PROSPECTUS                           INFORMATION REGARDING THE FUND     9


OTHER INVESTMENT PRACTICES, THEIR CHARACTERISTICS
AND RISKS

    For additional  information  regarding the investment practices of the fund,
see the Statement of Additional Information.

PORTFOLIO TURNOVER

   
    The  portfolio  turnover  rates  of the  fund  are  shown  in the  financial
information of this Prospectus.
    

    Investment  decisions  to  purchase  and sell  securities  are  based on the
anticipated  contribution of the security in question to the fund's  objectives.
The manager  believes that the rate of portfolio  turnover is irrelevant when it
or JPMIM  determines  a change  is in order to  achieve  those  objectives  and,
accordingly, the annual portfolio turnover rate cannot be accurately predicted.

   
    The  portfolio  turnover of the fund may be higher than other  mutual  funds
with   similar   investment   objectives.   Higher   turnover   would   generate
correspondingly higher transaction costs that the fund pays directly.  Portfolio
turnover may also affect the character of capital  gains,  if any,  realized and
distributed by the fund since  short-term  capital gains are taxable as ordinary
income.
    

    Transaction  costs are normally  higher for foreign  securities than for U.S
securities; therefore, the fund's anticipated portfolio turnover rate may have a
larger  negative  impact  on total  return  than it  would if the fund  invested
primarily or exclusively in U.S. securities.

WHEN-ISSUED AND FORWARD COMMITMENT AGREEMENTS

   
    The fund may sometimes purchase new issues of securities on a when-issued or
forward  commitment  basis when, in the opinion of the manager,  such  purchases
will  further the  investment  objective of the fund.  The price of  when-issued
securities  is  established  at the time the  commitment  to  purchase  is made.
Delivery  of and  payment for these  securities  typically  occurs 15 to 45 days
after the commitment to purchase. Market rates of interest on debt securities at
the time of  delivery  may be higher or lower than those  contracted  for on the
when-issued security.  Accordingly,  the value of the security may decline prior
to  delivery,  which  could  result in a loss to the fund.  A  separate  account
consisting of cash or  appropriate  liquid assets in an amount at least equal to
the  when-issued  commitments  will  be  established  and  maintained  with  the
custodian. No income will accrue to the fund prior to delivery.
    

INTEREST RATE FUTURES CONTRACTS AND OPTIONS THEREON

   
    The fund may buy or sell  interest rate futures  contracts  relating to debt
securities ("debt futures," i.e., futures relating to indices on types or groups
of bonds)  and  write or buy put and call  options  relating  to  interest  rate
futures contracts.
    

    For options sold, the fund will segregate cash or appropriate  liquid assets
including equity  securities and debt securities of any grade equal to the value
of securities underlying the option unless the option is otherwise covered.

    The fund will  deposit  cash or  appropriate  liquid  assets in a segregated
custodial  account in an amount  equal to the  fluctuating  market value of long
futures  contracts  it has  purchased,  less any  margin  deposited  on its long
position.  It may hold cash or acquire such debt  obligations for the purpose of
making these deposits.

    The fund may use futures and options  transactions to maintain cash reserves
while remaining fully invested,  to facilitate  trading,  to reduce  transaction
costs, or to pursue higher investment  returns when a futures contract is priced
more attractively than its underlying security or index.

   
    Since futures  contracts and options thereon can replicate  movements in the
cash markets for the securities in which the fund invests without the large cash
investments  required for dealing in such markets,  they may subject the fund to
greater and more volatile risks than might  otherwise be the case. The principal
risks related to the use of such instruments are (1) the offsetting  correlation
between  movements in the market  price of the  portfolio  investments  (held or
intended) being hedged and in the price of the futures contract or option may be
imperfect;  (2)  possible  lack of a liquid  secondary  market for  closing  out
futures or option  positions;  (3) the need of additional  portfolio  management
skills  and  techniques;  and  (4)  losses  due to  unanticipated  market  price
movements.  For a hedge to be  completely  effective,  the  price  change of the
hedging instrument should equal the price change of the securities being hedged.
Such equal price changes
    


10    INFORMATION REGARDING THE FUND            AMERICAN CENTURY INVESTMENTS


are not always possible because the investment underlying the hedging instrument
may not be the same investment that is being hedged.

   
    The manager  will attempt to create a closely  correlated  hedge but hedging
activities  may  not  be  completely  successful  in  eliminating  market  value
fluctuation.  The  ordinary  spreads  between  prices  in the cash  and  futures
markets,  due to the differences in the nature of those markets,  are subject to
distortion.  Due to the possibility of distortion, a correct forecast of general
interest  rate  trends  by the  manager  may still  not  result in a  successful
transaction.  The manager may be incorrect in its  expectations as to the extent
of various  interest rate  movements or the time span within which the movements
take place.
    

    See the Statement of Additional  Information for further  information  about
these instruments and their risks.

SHORT-TERM INSTRUMENTS

    For liquidity  purposes,  the fund may invest in  high-quality  money market
instruments with remaining  maturities of one year or less. Such instruments may
include  nondollar-denominated   obligations  of  foreign  governments,  foreign
government agencies,  and supranational  organizations,  as well as high-quality
certificates of deposit.

    The fund may also enter into repurchase  agreements,  collateralized by U.S.
government  securities,  with banks or broker-dealers that are deemed to present
minimal credit risk. Credit risk determinations are made by the manager pursuant
to  guidelines  established  by the Board of Trustees.  A  repurchase  agreement
involves  the purchase of a security  and a  simultaneous  agreement to sell the
security back to the seller at a higher price.  Delays or losses could result if
the other party to the agreement defaults or becomes bankrupt.

   
    The fund may invest up to 5% of its total  assets in any money  market fund,
including  those  advised  by the  manager,  provided  that  the  investment  is
consistent  with the fund's  investment  policies and  restrictions.  The fund's
total investment in money market funds may not exceed 10% of its total assets.
    

SECURITIES LENDING

    In order  to  realize  additional  income,  the fund may lend its  portfolio
securities  to  persons  not  affiliated  with  it  and  who  are  deemed  to be
creditworthy.  Such  loans  must be  secured  continuously  by  cash  collateral
maintained on a current basis in an amount at least equal to the market value of
the securities loaned, or by irrevocable letters of credit. During the existence
of the loan,  the fund must  continue to receive the  equivalent of the interest
and dividends  paid by the issuer on the  securities  loaned and interest on the
investment of the collateral.  The fund must have the right to call the loan and
obtain the  securities  loaned at any time on five days'  notice,  including the
right to call the loan to enable the fund to vote the securities.  This practice
could result in a loss or a delay in recovering the fund's securities.

    The fund may not lend any  security  or make any other loan if, as a result,
more than 33 (1)/(3)% of the fund's total assets would be lent to other  parties
in the manner described above.

OTHER TECHNIQUES

    JPMIM may buy other types of securities or employ other portfolio management
techniques on behalf of the fund.  When SEC guidelines  require it to do so, the
fund will set aside cash or appropriate liquid assets in a segregated account to
cover its  obligations.  See the Statement of Additional  Information for a more
detailed  discussion of these  investments and some of the risks associated with
them.

PERFORMANCE ADVERTISING

    From time to time, the fund may advertise performance data. Fund performance
may be shown  by  presenting  one or more  performance  measurements,  including
cumulative  total return or average  annual total  return,  yield and  effective
yield.  Performance data may be quoted  separately for the Advisor Class and for
the other class offered by the fund.

    Cumulative  total  return data is computed by  considering  all  elements of
return,  including  reinvestment  of dividends and capital gains  distributions,
over a stated  period of time.  Average  annual  total return is  determined  by
computing  the annual  compound  return over a stated  period of time that would
have produced the fund's cumulative total


PROSPECTUS                               INFORMATION REGARDING THE FUND 11


return  over the same period if the fund's  performance  had  remained  constant
throughout.

    A  quotation  of yield  reflects  the  fund's  income  over a stated  period
expressed as a percentage  of the fund's share  price.  The  effective  yield is
calculated in a similar  manner but, when  annualized,  the income earned by the
investment is assumed to be  reinvested.  The  effective  yield will be slightly
higher  than  the  yield  because  of the  compounding  effect  on  the  assumed
reinvestment.

    Yield is  calculated  by adding  over a 30-day  (or  one-month)  period  all
interest and dividend  income (net of fund  expenses)  calculated  on each day's
market  values,  dividing  this  sum  by  the  average  number  of  fund  shares
outstanding  during the period, and expressing the result as a percentage of the
fund's  share  price on the last day of the 30-day (or one  month)  period.  The
percentage is then annualized.  Capital gains and losses are not included in the
calculation.

    Yields are calculated  according to accounting methods that are standardized
in accordance with SEC rules.  Because yield accounting  methods differ from the
methods  used for other  accounting  purposes,  a fund's yield may not equal the
income  paid on its  shares  or the  income  reported  in the  fund's  financial
statements.

    The fund may also include in advertisements data comparing  performance with
the performance of non-related  investment media,  published  editorial comments
and performance  rankings compiled by independent  organizations (such as Lipper
Analytical  Services) and  publications  that monitor the  performance of mutual
funds.  Performance information may be quoted numerically or may be presented in
a table,  graph or other  illustration.  In addition,  fund  performance  may be
compared to well-known indices of market performance.  Fund performance may also
be compared,  on a relative basis,  to the other funds in our fund family.  This
relative  comparison,  which  may be based  upon  historical  or  expected  fund
performance,  volatility  or  other  fund  characteristics,   may  be  presented
numerically,  graphically or in text.  Fund  performance may also be combined or
blended  with  other  funds in our fund  family,  and that  combined  or blended
performance may be compared to the same indices to which individual funds may be
compared.

    All performance  information  advertised by the fund is historical in nature
and is not intended to represent or guarantee future results.  The value of fund
shares when redeemed may be more or less than their original cost.


12    INFORMATION REGARDING THE FUND            AMERICAN CENTURY INVESTMENTS


                HOW TO INVEST WITH AMERICAN CENTURY INVESTMENTS

    The following section explains how to purchase,  exchange and redeem Advisor
Class shares of the fund offered by this Prospectus.

   
    To reduce  expenses and  demonstrate  respect for our  environment,  we have
initiated a project  through which we will  eliminate  duplicate  copies of most
financial  reports and  prospectuses  to most  households  and  deliver  account
statements to most households in a single envelope,  even if they have more than
one  account.  If you would like  additional  copies of  financial  reports  and
prospectuses or separate mailing of account statements, please call us.
    

HOW TO PURCHASE AND SELL AMERICAN
CENTURY FUNDS

    The fund offered by this  Prospectus  is available as an  investment  option
under  your  employer-sponsored  retirement  or  savings  plan or  through or in
connection   with  a  program,   product  or  service  offered  by  a  financial
intermediary,  such as a bank,  broker-dealer or an insurance company. Since all
records  of your share  ownership  are  maintained  by your plan  sponsor,  plan
recordkeeper, or other financial intermediary,  all orders to purchase, exchange
and  redeem  shares  must be made  through  your  employer  or  other  financial
intermediary, as applicable.

    If  you  are   purchasing   through  a  retirement  or  savings  plan,   the
administrator of your plan or your employee benefits office can provide you with
information  on how to  participate  in your  plan  and how to  select  American
Century funds as an investment option.

    If you are purchasing through a financial  intermediary,  you should contact
your service  representative at the financial intermediary for information about
how to select American Century funds.

    If you have questions about the fund, see "Investment Policies of the Fund,"
page  6,  or  call  one  of  our  Institutional   Service   Representatives   at
1-800-345-3533.

    Orders to purchase shares are effective on the day we receive payment. See
"When Share Price Is Determined," page 14.

    We may  discontinue  offering  shares  generally in the fund  (including any
class  of  shares  of a fund)  or in any  particular  state  without  notice  to
shareholders.

HOW TO EXCHANGE FROM ONE AMERICAN
CENTURY FUND TO ANOTHER

    Your plan or program  may  permit you to  exchange  your  investment  in the
shares  of a fund for  shares  of  another  fund in our  family.  See your  plan
administrator, employee benefits office or financial intermediary for details on
the rules in your plan governing exchanges.

HOW TO REDEEM SHARES

    Subject to any  restrictions  imposed by your  employer's  plan or financial
intermediary's  program, you can sell ("redeem") your shares through the plan or
financial  intermediary  at their net  asset  value.  Your  plan  administrator,
trustee,  or financial  intermediary or other designated  person must provide us
with redemption instructions. The shares will be redeemed at the net asset value
next computed after receipt of the  instructions in good order.  See "When Share
Price Is  Determined,"  page 14. If you have any questions  about how to redeem,
contact  your  plan   administrator,   employee   benefits  office,  or  service
representative at your financial intermediary, as applicable.

TELEPHONE SERVICES

INVESTORS LINE

    To  request  information  about our funds and a current  Prospectus,  or get
answers to any  questions  that you may have about the funds and the services we
offer, call one of our Institutional Service Representatives at 1-800-345-3533.


PROSPECTUS            HOW TO INVEST WITH AMERICAN CENTURY INVESTMENTS      13


                    ADDITIONAL INFORMATION YOU SHOULD KNOW

SHARE PRICE

WHEN SHARE PRICE IS DETERMINED

   
    The price of your shares is also  referred to as their net asset value.  Net
asset value is determined  by  calculating  the total value of a fund's  assets,
deducting  total  liabilities  and  dividing  the result by the number of shares
outstanding. For all American Century funds, except the funds issued by American
Century Target  Maturities  Trust, net asset value is determined at the close of
regular trading on each day that the New York Stock Exchange is open,  usually 3
p.m.  Central  time.  The net  asset  values  for  Target  Maturities  funds are
determined one hour prior to the close of the Exchange.
    

    Investments and requests to redeem or exchange shares will receive the share
price next  determined  after  receipt by us of the  investment,  redemption  or
exchange  request.  For example,  investments and requests to redeem or exchange
shares of a fund received by us or one of our agents before the time as of which
the net  asset  value of the fund is  determined,  are  effective  on,  and will
receive the price  determined,  that day.  Investment,  redemption  and exchange
requests received  thereafter are effective on, and receive the price determined
as of the close of the Exchange on the next day the Exchange is open.

   
    Investments  are  considered  received  only when payment is received by us.
Wired funds are  considered  received on the day they are  deposited in our bank
account if they are deposited before the time as of which the net asset value of
the fund is determined.
    

    Investments by telephone pursuant to your prior  authorization to us to draw
on your bank account are considered received at the time of your telephone call.

   
    Investment and transaction  instructions  received by us on any business day
by mail  before  the time as of which the net  asset  value is  determined  will
receive that day's price.  Investments and instructions received after that time
will receive the price determined on the next business day.
    

    If you invest in fund shares through an  employer-sponsored  retirement plan
or  other  financial  intermediary,  it  is  the  responsibility  of  your  plan
recordkeeper or financial  intermediary to transmit your purchase,  exchange and
redemption requests to the fund's transfer agent prior to the applicable cut-off
time for receiving  orders and to make payment for any purchase  transactions in
accordance with the fund's  procedures or any contractual  arrangement  with the
fund or the fund's distributor in order for you to receive that day's price.

   
    We have contractual  relationships with certain financial  intermediaries in
which such intermediaries  represent that they have systems to track the time at
which  investment  orders are  received  and to  segregate  orders  received  at
different times.  Based on these  representations,  the fund has authorized such
intermediaries  and their designees to accept purchase and redemption  orders on
the fund's behalf up to the applicable  cut-off time. The fund will be deemed to
have received such orders upon acceptance by the duly  authorized  intermediary,
and such  orders  will be priced at the fund's net asset  value next  determined
after acceptance on the fund's behalf by such intermediary.
    

HOW SHARE PRICE IS DETERMINED

    The valuation of assets for determining net asset value may be summarized as
follows:

   
    The portfolio  securities of the fund, except as otherwise noted,  listed or
traded on a domestic  securities  exchange  are valued at the last sale price on
that  exchange.  Portfolio  securities  primarily  traded on foreign  securities
exchanges  are  generally  valued  at  the  preceding  closing  values  of  such
securities on the exchange where primarily traded. If no sale is reported, or if
local convention or regulation so provides, the mean of the latest bid and asked
prices is used.  Depending on local convention or regulation,  securities traded
over-the-counter  are priced at the mean of the latest bid and asked prices,  or
at the last sale  price.  When  market  quotations  are not  readily  available,
securities and other assets are valued at fair value as determined in accordance
with procedures adopted by the Board of Trustees.
    


14    ADDITIONAL INFORMATION YOU SHOULD KNOW    AMERICAN CENTURY INVESTMENTS


    Debt  securities  not traded on a principal  securities  exchange are valued
through  valuations  obtained from a commercial  pricing  service or at the most
recent  mean of the bid and asked  prices  provided  by  investment  dealers  in
accordance with procedures established by the Board of Trustees.

WHERE TO FIND INFORMATION ABOUT SHARE PRICE

    The net asset  values of the  Investor  Class of the funds are  published in
leading newspapers daily.  Because the total expense ratio for the Advisor Class
shares is 0.25% higher than the Investor  Class,  their net asset values will be
lower than the Investor Class.  The net asset values of the Advisor Class may be
obtained by calling us.

DISTRIBUTIONS

   
    The fund expects to declare and pay distributions from net investment income
quarterly, although it may elect not to do so in any given quarter. The fund may
forego a dividend if, for example, net currency losses exceed investment income.
Distributions from net realized securities gains, if any, generally are declared
and paid once a year,  but the fund may make  distributions  on a more  frequent
basis to comply with the distribution requirements of the Internal Revenue Code,
in all  events in a manner  consistent  with the  provisions  of the  Investment
Company  Act.  Note:  When  describing   "distributions"   in  this  Prospectus,
"distributions"   has  the  meaning  of  income  and  realized  securities  gain
distributions.  This  fund  does not  intend to make  return  of  capital  (ROC)
distributions.

    You will  begin to  participate  in the  distributions  the day  after  your
purchase is  effective.  See "When Share Price Is  Determined,"  page 14. If you
redeem  shares,  you will receive the  distribution  declared for the day of the
redemption.  If all shares are redeemed, the distribution on the redeemed shares
will be included with your redemption proceeds.

    Participants in employer-sponsored retirement or savings plans must reinvest
all  distributions.   For  shareholders   investing  through  taxable  accounts,
distributions  will be  reinvested  unless  you elect to  receive  them in cash.
Distributions of less than $10 generally will be reinvested.  Distributions made
shortly  after a  purchase  by check  or ACH may be held up to 15 days.  You may
elect to have distributions on shares held in certain IRAs and 403(b) plans paid
in cash only if you are at least  591/2  years old or  permanently  and  totally
disabled.  Distribution  checks  normally are mailed within seven days after the
record date. Please consult our Investor Services Guide for further  information
regarding your distribution options.

    A  distribution  does not  increase  the value of your  shares or your total
return.  At any given time the value of your shares  includes the  undistributed
net gains, if any, realized by the fund on the sale of portfolio securities, and
undistributed dividends and interest received, less fund expenses.
    

    Because  undistributed gains and dividends are included in the value of your
shares prior to distribution, when they are distributed the value of your shares
will be  reduced  by the  amount  of the  distribution.  If you buy your  shares
through a taxable  account just before the  distribution,  you will pay the full
price for your shares,  and then receive a portion of the purchase price back as
a taxable distribution. See "Taxes," this page.

TAXES

    The fund has elected to be taxed under  Subchapter M of the Internal Revenue
Code,  which means that to the extent its income is distributed to shareholders,
it pays no income taxes.

TAX-DEFERRED ACCOUNTS

    If fund  shares  are  purchased  through  tax-deferred  accounts,  such as a
qualified  employer-sponsored  retirement  or savings  plan,  income and capital
gains  distributions  paid by the fund will  generally not be subject to current
taxation,  but will  accumulate in your account under the plan on a tax-deferred
basis.

    Employer-sponsored  retirement and savings plans are governed by complex tax
rules.  If you elect to participate in your employer's  plan,  consult your plan
administrator,  your plan's  summary plan  description,  or a  professional  tax
advisor   regarding  the  tax   consequences  of   participation  in  the  plan,
contributions to, and withdrawals or distributions from the plan.

TAXABLE ACCOUNTS

    If fund shares are purchased through taxable accounts,  distributions of net
investment income and


PROSPECTUS                       ADDITIONAL INFORMATION YOU SHOULD KNOW    15


   
net short-term  capital gains are taxable to you as ordinary  income,  except as
described  below.  The dividends  from net income of the fund do not qualify for
the 70%  dividends-received  deduction for  corporations  since they are derived
from interest  income.  Distributions  from gains on assets held greater than 12
months,  but no more than 18 months (28% Rate Gain)  and/or  assets held greater
than 18 months (20% Rate Gain) are taxable as long-term capital gains regardless
of the length of time you have held the shares on which such  distributions  are
paid.  However,  you  should  note  that  any  loss  realized  upon  the sale or
redemption  of shares held for six months or less will be treated as a long-term
capital loss to the extent of any  distribution  of long-term  capital gain (28%
and/or 20% Rate Gain) to you with respect to such shares.

    Distributions  are taxable to you  regardless  of whether  they are taken in
cash or reinvested,  even if the value of your shares is below your cost. If you
purchase shares shortly before a distribution,  you must pay income taxes on the
distribution,  even though the value of your investment (plus cash received,  if
any) will not have  increased.  In  addition,  the  share  price at the time you
purchase  shares may  include  unrealized  gains in the  securities  held in the
investment portfolio of the fund. If these portfolio securities are subsequently
sold and the gains are realized,  they will, to the extent not offset by capital
losses, be paid to you as a distribution of capital gains and will be taxable to
you as short-term or long-term capital gains (28% and/or 20% Rate Gain).
    

    In January of the year  following the  distribution,  if you own shares in a
taxable account, you will receive a Form 1099-DIV notifying you of the status of
your distributions for federal income tax purposes.

    Distributions may also be subject to state and local taxes, even if all or a
substantial  part  of  such  distribution  are  derived  from  interest  on U.S.
government  obligations  which,  if you received them directly,  would be exempt
from state income tax. However, most but not all states allow this tax exemption
to pass through to fund  shareholders  when the fund pays  distributions  to its
shareholders.  You should  consult your tax advisor about the tax status of such
distributions in your own state.

    If you have not complied  with certain  provisions  of the Internal  Revenue
Code,  either we or your  financial  intermediary  is required by federal law to
withhold  and remit to the IRS 31% of  reportable  payments  (which may  include
dividends,  capital gains  distributions  and  redemptions).  Those  regulations
require you to certify  that the Social  Security  number or tax  identification
number you provide is correct  and that you are not  subject to 31%  withholding
for  previous  under-reporting  to the  IRS.  You  will be  asked  to  make  the
appropriate certification on your application. Payments reported by us that omit
your Social  Security number or tax  identification  number will subject us to a
penalty  of $50,  which  will be  charged  against  your  account if you fail to
provide  the  certification  by  the  time  the  report  is  filed,  and  is not
refundable.

   
    Redemption of shares of the fund (including  redemptions made in an exchange
transaction)  will be a taxable  transaction for federal income tax purposes and
shareholders  will generally  recognize a gain or loss in an amount equal to the
difference  between  the basis of the shares and the amount  received.  Assuming
that  shareholders hold such shares as a capital asset, the gain or loss will be
a capital gain or loss and will generally be considered long-term subject to tax
at a maximum rate of 28% (28% Rate  Gain/Loss)  if  shareholders  have held such
shares  for a period of more  than 12  months,  but no more  than 18 months  and
long-term  subject  to tax at a maximum  rate of 20%,  minimum  of 10% (20% Rate
Gain/Loss)  if  shareholders  have held such shares for a period of more than 18
months. If a loss is realized on the redemption of fund shares, the reinvestment
in additional  fund shares within 30 days before or after the  redemption may be
subject to the "wash sale" rules of the Internal  Revenue  Code,  resulting in a
postponement of the recognition of such loss for federal income tax purposes.
    

MANAGEMENT

INVESTMENT MANAGEMENT

   
    The  American  Century-Benham  International  Bond Fund,  formerly  known as
"American   Century-Benham   European   Government   Bond  Fund,"  is  the  sole
nondiversified  open-end series of the American Century International Bond Funds
(the "Trust").
    


16    ADDITIONAL INFORMATION YOU SHOULD KNOW       AMERICAN CENTURY INVESTMENTS


   
Organized as a Massachusetts  business trust on August 28, 1991,  under the laws
of the Commonwealth of  Massachusetts,  the Board of Trustees is responsible for
managing the business and affairs of the Trust. Acting pursuant to an investment
management  agreement  entered into with the fund,  American Century  Investment
Management,  Inc.  serves as the  investment  manager of the fund. Its principal
place of business is American  Century  Tower,  4500 Main  Street,  Kansas City,
Missouri 64111.
    

    The manager has been providing  investment  advisory  services to investment
companies and institutional clients since it was founded in 1958.

   
    The manager supervises and manages the investment  portfolio of the fund and
directs the purchase and sale of its investment securities. It utilizes teams of
portfolio managers, assistant portfolio managers and analysts acting together to
supervise the management of the fund's assets.

    JPMIM is the fund's  investment  subadvisor.  JPMIM is a leading  manager of
pension funds,  institutional accounts, and private accounts, with approximately
$200 billion in assets under  management.  JPMIM makes investment  decisions for
the fund in  accordance  with the fund's  investment  objective,  policies,  and
restrictions  under the  supervision  of the manager and the Board of  Trustees.
JPMIM is a wholly-owned subsidiary of J.P. Morgan & Co. Incorporated.
    

    The portfolio  manager  members of the teams  managing the fund described in
this  Prospectus and their work experience for the last five years are listed as
follows:

   
    DETLER  SCHLICHTER,  Vice  President,  is a fixed  income  Senior  Portfolio
Manager.  He joined J.P. Morgan & Co., Frankfurt in 1990; he has worked at JPMIM
London as a  Portfolio  Manager  since  April of 1996.  Mr.  Schlichter  holds a
Bachelors degree and Master's degree from the University of Bochum.
    

    DOMINIC PEGLER,  Vice President,  is a fixed income  Portfolio  Manager.  He
joined JPMIM London in 1996 after seven years at the Bank of England, serving as
an  economist  and in the  Reserves  Management  Department,  managing  the UK's
foreign  exchange  reserves.  His time at the Bank included a two-year term with
the Directorate of Monetary  Affairs.  Mr. Pegler holds a Bachelor's  degree and
Master's degree in Economics from the London School of Economics.

   
    DAVID SCHROEDER, Vice President, oversees JPMIM's management of the fund and
has done so since  June 1997.  Mr.  Schroeder  is also on the teams that  manage
American    Century-Benham    Inflation-Adjusted    Treasury   Fund,    American
Century-Benham   Intermediate-Term   Treasury  Fund,   American   Century-Benham
Long-Term  Treasury Fund, and the series of American  Century Target  Maturities
Trust.  Mr.  Schroeder  joined the  manager in 1990 as a  Portfolio  Manager and
serves as the group  leader  of the  portfolio  management  teams  which  manage
American Century's U.S. government and international bond funds.

    For subadvisory services, the manager pays JPMIM a monthly fee at the annual
rate of 0.20% of  average  daily  net  assets  up to $200  million  and 0.15% of
average  daily net assets in excess of $200  million.  For the fiscal year ended
December 31, 1997, the manager paid JPMIM subadvisory fees equal to 0.19% of the
fund's average daily net assets.
    

    The  activities  of the manager are subject only to directions of the fund's
Board of  Trustees.  The  manager  pays  all the  expenses  of the  fund  except
brokerage,  taxes,  portfolio  insurance,  interest,  fees and  expenses  of the
non-interested  person  Trustees  (including  counsel  fees)  and  extraordinary
expenses.

    For the services  provided to the fund,  the manager  receives a monthly fee
based on a percentage of the average net assets of the fund.  The annual rate at
which this fee is assessed is determined monthly in a two-step process: First, a
fee rate  schedule is applied to the assets of all of the bond funds  managed by
the  manager  (the  "Investment  Category  Fee").  Second,  a separate  fee rate
schedule  is applied to the  assets of all of the funds  managed by the  manager
(the "Complex  Fee").  The Investment  Category Fee and the Complex Fee are then
added  to  determine  the  unified  management  fee  payable  by the fund to the
manager.  Currently,  the Investment Category Fee for the fund is an annual rate
of 0.29% of the average net assets of the fund.  The Complex Fee is currently an
annual rate of 0.30% of the average net assets of the fund. Further  information
about the calculation of the annual management fee is contained in the Statement
of Additional Information.


PROSPECTUS                      ADDITIONAL INFORMATION YOU SHOULD KNOW    17


    On the first  business day of each month,  the fund pays a management fee to
the  manager  for the  previous  month at the  specified  rate.  The fee for the
previous month is calculated by  multiplying  the applicable fee for the fund by
the  aggregate  average  daily closing value of the fund's net assets during the
previous  month by a fraction,  the  numerator of which is the number of days in
the previous month and the denominator of which is 365 (366 in leap years).

CODE OF ETHICS

    The Trust and the  manager  have  adopted a Code of Ethics  which  restricts
personal  investing  practices by  employees of the manager and its  affiliates.
Among other  provisions,  the Code of Ethics requires that employees with access
to information about the purchase or sale of securities in the funds' portfolios
obtain  preclearance before executing personal trades. With respect to Portfolio
Managers  and  other  investment   personnel,   the  Code  of  Ethics  prohibits
acquisition  of securities  in an initial  public  offering,  as well as profits
derived from the purchase and sale of the same security within 60 calendar days.
These  provisions  are  designed  to  ensure  that  the  interests  of the  fund
shareholders come before the interests of the people who manage the fund.

TRANSFER AND ADMINISTRATIVE SERVICES

    American  Century  Services  Corporation,  4500 Main  Street,  Kansas  City,
Missouri 64111, acts as transfer agent and  dividend-paying  agent for the fund.
It provides facilities, equipment and personnel to the fund and is paid for such
services by the manager.

   
    Pursuant  to  a  Sub-Administration   Agreement  with  the  manager,   Funds
Distributor,  Inc.  (FDI) serves as the  Co-Administrator  for the fund.  FDI is
responsible  for (i) providing  certain  officers of the fund and (ii) reviewing
and filing  marketing and sales  literature on behalf of the fund.  The fees and
expenses of FDI are paid by the manager out of its management fee.
    

    From time to time,  special  services  may be  offered to  shareholders  who
maintain  higher  share  balances  in our family of funds.  These  services  may
include the waiver of minimum investment requirements, expedited confirmation of
shareholder  transactions,  newsletters and a team of personal  representatives.
Any expenses  associated with these special services will be paid by the manager
or its affiliates.

   
    The manager and the transfer agent are both wholly-owned by American Century
Companies,  Inc. (ACC). James E. Stowers Jr., Chairman of the Board of Directors
of ACC,  controls  ACC by virtue of his  ownership  of a majority  of its common
stock.

YEAR 2000 ISSUES

    Many of the world's computer systems currently cannot properly  recognize or
process  date-sensitive  information  relating to the Year 2000 and beyond.  The
fund depends upon the computer systems of various service  providers,  including
the transfer agent, for its day-to-day operations. Inadequate remediation of the
Year 2000 problem by these service  providers and others with whom they interact
could  have an  adverse  effect on the  fund's  operations,  including  pricing,
securities  trading and settlement,  and the provision of shareholder  services.
The transfer agent has assembled a team of information technology  professionals
who are  taking  steps to  address  Year 2000  issues  with  respect  to its own
computers and to obtain satisfactory  assurances that comparable steps are being
taken by the fund's other major service providers and vendors. The key phases of
the  remediation  plan  include:  an inventory of all internal  systems,  vendor
products and services and data providers  (substantially  completed in 1997); an
assessment  of all  systems  for date  reliance  and the  impact of the  century
rollover on each  (substantially  completed with respect to critical  systems in
early 1998);  and the renovation and testing of affected  systems  (targeted for
completion  with  respect to critical  systems by the end of 1998).  The manager
will pay for the  remediation  effort with revenues from its management  fee, so
that  the  fund  will  not  directly  bear  any of the  cost.  In light of these
remediation  efforts,  the fund does not anticipate a material adverse impact on
its business,  operations or financial  condition  relating to Year 2000 issues.
However,  there can be no assurance that the remediation plan will be sufficient
and timely or that interaction with other noncomplying computer systems will not
have a material adverse effect on the fund's  business,  operations or financial
condition.
    


18    ADDITIONAL INFORMATION YOU SHOULD KNOW      AMERICAN CENTURY INVESTMENTS


DISTRIBUTION OF FUND SHARES

   
    The fund's shares are  distributed by FDI, a registered  broker-dealer  (the
"Distributor").   FDI  is  a   wholly-owned   indirect   subsidiary   of  Boston
Institutional  Group, Inc. FDI's principal  business address is 60 State Street,
Suite 1300, Boston, Massachusetts 02109.

    Investors  may  open  accounts  with  American   Century  only  through  the
Distributor.  All purchase  transactions  in the fund offered by this Prospectus
are  processed  by the  transfer  agent,  which  is  authorized  to  accept  any
instructions relating to fund accounts.  All purchase orders must be accepted by
the Distributor.
    

    As agent for the fund and the manager, the Distributor enters into contracts
with various  banks,  broker-dealers,  insurance  companies and other  financial
intermediaries  with respect to the sale of the fund's  shares and/or the use of
the fund's shares in various financial  services.  The manager (or an affiliate)
pays all expenses  incurred in promoting sales of, and  distributing the Advisor
Class and in securing such services out of the Rule 12b-1 fees  described in the
section that follows.

SERVICE AND DISTRIBUTION FEES

    Rule  12b-1  adopted by the SEC under the  Investment  Company  Act  permits
investment  companies  that  adopt  a  written  plan  to  pay  certain  expenses
associated  with the  distribution  of their shares.  Pursuant to that rule, the
fund's Board of Trustees and the initial shareholder of the fund's Advisor Class
shares have approved and adopted a Master Distribution and Shareholder  Services
Plan  (the  "Plan").  Pursuant  to the  Plan,  each  fund  pays  the  manager  a
shareholder  services  fee and a  distribution  fee,  each equal to 0.25% (for a
total of 0.50%) per annum of the  average  daily net assets of the shares of the
fund's Advisor Class.  The  shareholder  services fee is paid for the purpose of
paying the costs of securing certain  shareholder and  administrative  services,
and the  distribution  fee is paid  for the  purpose  of  paying  the  costs  of
providing various distribution  services. All or a portion of such fees are paid
by the  manager  to the  banks,  broker-dealers,  insurance  companies  or other
financial intermediaries through which such shares are made available.

    The Plan has been adopted and will be  administered  in accordance  with the
requirements  of Rule 12b-1 under the  Investment  Company Act.  For  additional
information about the Plan and its terms, see "Multiple Class Structure - Master
Distribution  and  Shareholder  Services  Plan" in the  Statement of  Additional
Information. Fees paid pursuant to the Plan may be paid for shareholder services
and the maintenance of accounts and therefore may constitute  "service fees" for
purposes of applicable rules of the National Association of Securities Dealers.

FURTHER INFORMATION ABOUT AMERICAN CENTURY

   
    The Trust is an open-end  management  investment  company.  Its business and
affairs  are  managed  by its  officers  under  the  direction  of its  Board of
Trustees.
    

    The  principal  office of the Trust is  American  Century  Tower,  4500 Main
Street, P. O. Box 419385, Kansas City, Missouri 64141-6385. All inquiries may be
made by mail to that address,  or by telephone to 1-800-345-3533  (international
calls: 816-531-5575).

    The fund is an  individual  series of the Trust which issues  shares with no
par value. Each series is commonly referred to as a fund. Currently, the fund is
the only existing series of the Trust.  In the event that  additional  series of
the Trust are  created,  the assets  belonging to each series of shares are held
separately by the custodian and in effect each series is a separate fund.

    American  Century  International  Bond Funds  offers two classes of the fund
offered by this  Prospectus:  an Investor Class and an Advisor Class. The shares
offered by this Prospectus are Advisor Class shares.

    The  Investor  Class  of  shares  is  primarily  made  available  to  retail
investors.  This  other  class has  different  fees,  expenses,  and/or  minimum
investment  requirements  than the  Advisor  Class.  The  difference  in the fee
structures  among the classes is the result of their separate  arrangements  for
shareholder  and  distribution  services and not the result of any difference in
amounts  charged  by  the  manager  for  core  investment   advisory   services.
Accordingly,  the  core  investment  advisory  expenses  do not  vary by  class.
Different fees and expenses will affect performance.  For additional information
concerning  the  Investor  Class of shares,  call one of our  Investor  Services
Representatives at 1-800-345-2021.

    Except as described below, all classes of shares


PROSPECTUS                      ADDITIONAL INFORMATION YOU SHOULD KNOW     19


of a fund  have  identical  voting,  dividend,  liquidation  and  other  rights,
preferences,  terms and  conditions.  The only  differences  among  the  various
classes are (a) each class may be subject to different expenses specific to that
class, (b) each class has a different identifying  designation or name, (c) each
class has exclusive  voting rights with respect to matters solely affecting such
class, and (d) each class may have different exchange privileges.

    Each  share,  irrespective  of series or class,  is entitled to one vote for
each dollar of net asset value applicable to such share on all questions, except
for those  matters  which must be voted on  separately by the series or class of
shares affected.  Matters affecting only one series or class are voted upon only
by that series or class.

    Shares have  non-cumulative  voting rights,  which means that the holders of
more than 50% of the votes cast in an election of Trustees  can elect all of the
Trustees if they choose to do so, and in such event the holders of the remaining
votes will not be able to elect any person or persons to the Board of Trustees.

    Unless required by the Investment  Company Act, it will not be necessary for
the Trust to hold annual meetings of shareholders. As a result, shareholders may
not vote each year on the election of Trustees or the  appointment  of auditors.
However,  pursuant to the Trust's by-laws, the holders of shares representing at
least 10% of the votes  entitled  to be cast may  request  that the Trust hold a
special meeting of shareholders. The Trust will assist in the communication with
other shareholders.

    WE RESERVE THE RIGHT TO CHANGE ANY OF OUR POLICIES, PRACTICES AND PROCEDURES
DESCRIBED IN THIS PROSPECTUS, INCLUDING THE STATEMENT OF ADDITIONAL INFORMATION,
WITHOUT  SHAREHOLDER  APPROVAL  EXCEPT  IN  THOSE  INSTANCES  WHERE  SHAREHOLDER
APPROVAL IS EXPRESSLY REQUIRED.

    THIS PROSPECTUS  CONSTITUTES AN OFFER TO SELL SECURITIES OF THE FUND ONLY IN
THOSE STATES WHERE THE FUND'S SHARES HAVE BEEN REGISTERED OR OTHERWISE QUALIFIED
FOR SALE. THE FUND WILL NOT ACCEPT  APPLICATIONS FROM PERSONS RESIDING IN STATES
WHERE THE FUND'S SHARES ARE NOT REGISTERED.


20    ADDITIONAL INFORMATION YOU SHOULD KNOW     AMERICAN CENTURY INVESTMENTS


                                     NOTES


                                                                   NOTES    21


P.O. BOX 419385
KANSAS CITY, MISSOURI
64141-6385

   
INSTITUTIONAL SERVICES:
1-800-345-3533 OR 816-531-5575
    

TELECOMMUNICATIONS DEVICE FOR THE DEAF:
1-800-345-1833 OR 816-444-3038

FAX: 816-340-4655

   
www.americancentury.com
    

                        [american century logo (reg.sm)]
                                    American
                                Century(reg.tm)

   
9805           [recycled logo]
SH-BKT-11967      Recycled
<PAGE>
    
                      STATEMENT OF ADDITIONAL INFORMATION

   
                        [american century logo (reg.sm)]
                                    American
                                Century(reg.tm)

                                  MAY 1, 1998
    

                                    BENHAM
                                 GROUP(reg.tm)

                              International Bond


                      STATEMENT OF ADDITIONAL INFORMATION

   
                                  MAY 1, 1998
    

                   AMERICAN CENTURY INTERNATIONAL BOND FUNDS

   
This Statement is not a prospectus  but should be read in  conjunction  with the
fund's  current  Prospectus  dated May 1, 1998. The fund's annual report for the
fiscal year ended December 31, 1997, is incorporated herein by reference. Please
retain  this  document  for future  reference.  To obtain the  Prospectus,  call
American Century Investments  toll-free at 1-800-345-2021  (international calls:
816-531-5575) or write P.O. Box 419200, Kansas City, Missouri 64141-6200.
    

TABLE OF CONTENTS

   
Investment Policies, Techniques and Risk Factors ..........................    2
Investment Restrictions ...................................................    7
Portfolio Transactions ....................................................    8
Valuation of Portfolio Securities .........................................   10
Performance ...............................................................   10
Multiple Class Performance Advertising ....................................   12
Taxes .....................................................................   12
About the Trust ...........................................................   13
Multiple Class Structure ..................................................   14
Trustees and Officers .....................................................   16
Management ................................................................   18
Transfer and Administrative Services ......................................   20
Distribution of Fund Shares ...............................................   20
Additional Purchase and Redemption Information ............................   20
Financial Statements ......................................................   20
Other Information .........................................................   21
    


STATEMENT OF ADDITIONAL INFORMATION                                          1


INVESTMENT POLICIES, TECHNIQUES AND RISK FACTORS

    The following  pages provide a more detailed  description  of securities and
investment  practices identified in the Prospectus and the risks associated with
these  practices.  Unless  otherwise  noted,  the  policies  described  in  this
Statement of Additional  Information  are not  fundamental and may be changed by
the Board of Trustees.

U.S. GOVERNMENT SECURITIES

    U.S.  government  securities  include bills,  notes, and bonds issued by the
U.S.   Treasury   and   securities   issued  or   guaranteed   by   agencies  or
instrumentalities of the U.S. government.

    Some U.S.  government  securities are supported by the direct full faith and
credit pledge of the U.S.  government;  others are supported by the right of the
issuer to borrow from the U.S.  Treasury;  others,  such as securities issued by
the  Federal  National  Mortgage   Association  (FNMA),  are  supported  by  the
discretionary  authority  of the  U.S.  government  to  purchase  the  agencies'
obligations;  and others  are  supported  only by the  credit of the  issuing or
guaranteeing  instrumentality.  There is no assurance  that the U.S.  government
will provide financial support to an  instrumentality it sponsors when it is not
obligated by law to do so.

REPURCHASE AGREEMENTS

    In a repurchase  agreement (a "repo"), the fund buys a security at one price
and simultaneously  agrees to sell it back to the seller at an agreed upon price
on a specified date (usually  within seven days from the date of purchase) or on
demand.  The  repurchase  price  exceeds  the  purchase  price by an amount that
reflects an  agreed-upon  rate of return and that is  unrelated  to the interest
rate on the underlying security. Delay or losses could result if the other party
to the agreement defaults or becomes bankrupt.

    American Century  Investment  Management,  Inc. (the "manager")  attempts to
minimize the risks associated with repurchase  agreements by adhering to written
guidelines which govern repurchase agreements.  These guidelines strictly govern
(1) the type of  securities  which may be  acquired  and held  under  repurchase
agreements; (2) collateral requirements for sellers under repurchase agreements;
(3) the  amount of the fund's net assets  that may be  committed  to  repurchase
agreements  that mature in more than seven days; and (4) the manner in which the
fund  must  take  delivery  of  securities  subject  to  repurchase  agreements.
Moreover,  the Board of Trustees reviews and approves, on a quarterly basis, the
creditworthiness of brokers, dealers and banks with whom the fund may enter into
repurchase agreements.  The fund may enter into a repurchase agreement only with
an entity that appears on a list of those which have been  approved by the Board
as sufficiently creditworthy.

   
    The fund has received permission from the Securities and Exchange Commission
(SEC) to  participate  in joint  repurchase  agreements  collateralized  by U.S.
government  securities  with other  mutual  funds  advised by the manager or its
affiliates.  Joint repos are  expected to increase  the income the fund can earn
from repo  transactions  without  increasing  the risks  associated  with  these
transactions.
    

    Under the  Investment  Company Act of 1940 (the  "Investment  Company Act"),
repurchase agreements are considered loans.

WHEN-ISSUED AND FORWARD COMMITMENT AGREEMENTS

    The fund may engage in securities  transactions  on a when-issued or forward
commitment basis, in which the transaction price and yield are each fixed at the
time the  commitment  is made,  but payment and delivery  occur at a future date
(typically 15 to 45 days later).

    When purchasing securities on a when-issued or forward commitment basis, the
fund assumes the rights and risks of ownership, including the risks of price and
yield fluctuations.  Although the fund will make commitments to purchase or sell
securities with the intention of actually  receiving or delivering  them, it may
sell the securities  before the settlement date if doing so is deemed  advisable
as a matter of investment strategy.

    In purchasing  securities on a when-issued or forward  commitment basis, the
fund will establish and maintain until the settlement date a segregated  account
consisting of cash or appropriate  liquid assets including equity securities and
debt securities of any grade in an amount sufficient to meet the purchase price.
When the time comes to pay for the  when-issued  securities,  the fund will meet
its obligations


2                                                  AMERICAN CENTURY INVESTMENTS


with available cash,  through the sale of securities,  or, although it would not
normally  expect to do so, by  selling  the  when-issued  securities  themselves
(which  may  have a  market  value  greater  or less  than  the  fund's  payment
obligation).  Selling  securities  to meet  when-issued  or  forward  commitment
obligations may generate taxable capital gains or losses.

SECURITIES LENDING

    The fund may lend its portfolio  securities to earn additional  income. If a
borrower  defaulted on a securities  loan, the fund could  experience  delays in
recovering  the  securities  it loaned;  if the value of the  loaned  securities
increased over the value of the collateral, the fund could suffer a loss.

    To minimize the risk of default on securities  loans, the manager adheres to
guidelines  prescribed by the Board of Trustees governing lending of securities.
These guidelines strictly govern (1) the type and amount of collateral that must
be received by the fund;  (2) the  circumstances  under which  additions to that
collateral must be made by borrowers; (3) the return received by the fund on the
loaned securities; (4) the limitations on the percentage of fund assets on loan;
and (5) the  credit  standards  applied in  evaluating  potential  borrowers  of
portfolio securities. In addition, the guidelines require that the fund have the
option  to  terminate  any  loan of a  portfolio  security  at any  time and set
requirements for recovery of securities from borrowers.

FOREIGN CURRENCY EXCHANGE TRANSACTIONS

   
    The fund expects to exchange dollars for the fund's  underlying  currencies,
and  vice  versa,  in the  normal  course  of  managing  the  fund's  underlying
investments.   J.P.  Morgan  Investment  Management  Inc.  (JPMIM),  the  fund's
subadvisor, does not expect that the fund will hold currency that is not earning
income on a regular basis, although the fund may do so temporarily when suitable
investments  are not  available.  The fund may exchange  currencies  on a "spot"
basis (i.e.,  for prompt delivery and  settlement),  or by entering into forward
currency exchange  contracts (also called forward  contracts) or other contracts
to purchase and sell  currencies  for settlement at a future date. The fund will
incur costs in converting assets from one currency to another.  Foreign exchange
dealers may charge a fee for conversion; in addition, they also realize a profit
based on the difference  (i.e., the spread) between the prices at which they buy
and sell various currencies in the spot and forward markets.  Thus, a dealer may
offer to sell a foreign currency to the fund at one rate, and repurchase it at a
lesser rate should the fund desire to resell the currency to the dealer.
    

    Forward  contracts  are  agreements  to  exchange a  specific  amount of one
currency for a specified amount of another at a future date. The date may be any
agreed  fixed  number  of days in the  future.  The  amount  of  currency  to be
exchanged,  the price at which the exchange will take place, and the date of the
exchange are negotiated when the fund enters into the contract and are fixed for
the term of the contract.  Forward  contracts are traded in an interbank  market
conducted directly between currency traders (usually large commercial banks) and
their customers.  A forward contract generally has no deposit requirement and is
consummated without payment of any commission.  However, the fund may enter into
forward contracts with deposit requirements or commissions.

    At the maturity of a forward contract, the fund may complete the contract by
paying for and receiving the underlying  currency,  may seek to roll forward its
contractual  obligation by entering into an  "offsetting"  transaction  with the
same  currency  trader  and  paying or  receiving  the  difference  between  the
contractual  exchange rate and the current  exchange  rate. The fund may also be
able  to  enter  into  an  offsetting  contract  prior  to the  maturity  of the
underlying  contract.  This practice is sometimes referred to as "cross hedging"
and may be employed if, for example,  JPMIM  believes that one foreign  currency
(in which a portion of the fund's  foreign  currency  holdings are  denominated)
will  change in value  relative  to the U.S.  dollar  differently  than  another
foreign  currency.  There is no assurance that offsetting  transactions,  or new
forward contracts, will always be available to the fund.

    Investors  should  realize  that  the  use of  forward  contracts  does  not
eliminate  fluctuations  in  the  underlying  prices  of  the  securities.  Such
contracts  simply establish a rate of exchange that the fund can achieve at some
future point in time. Additionally, although such contracts tend to minimize the
risk of loss due to  fluctuations  in the value of the hedged currency when used
as a hedge against foreign


STATEMENT OF ADDITIONAL INFORMATION                                          3


currency declines,  at the same time they tend to limit any potential gain which
might result from the change in the value of such currency.

    Because  investments  in,  and  redemptions  from,  the fund will be in U.S.
dollars, JPMIM expects that the fund's normal investment activity will involve a
significant  amount of currency  exchange.  For  example,  the fund may exchange
dollars  for its  underlying  foreign  currencies  for  dollars in order to meet
shareholder  redemption  requests or to pay expenses.  These transactions may be
executed in the spot or forward markets.

    In addition,  the fund may combine  forward  transactions  in its underlying
currency with investments in U.S. dollar-denominated  instruments, in an attempt
to construct an investment position whose overall performance will be similar to
that of a security  denominated  in its  underlying  currency.  If the amount of
dollars to be exchanged is properly  matched with the  anticipated  value of the
dollar-denominated  securities, the fund should be able to "lock in" the foreign
currency value of the securities,  and the fund's overall investment return from
the combined  position should be similar to the return from purchasing a foreign
currency-denominated  instrument. This is sometimes referred to as a "synthetic"
investment position or a "position hedge."

    The execution of a synthetic  investment position may not be successful.  It
is impossible to forecast  with  absolute  precision  what the dollar value of a
particular   security   will  be  at  any  given   time.   If  the  value  of  a
dollar-denominated  security is not exactly  matched with the fund's  obligation
under the forward  contract on the  contract's  maturity  date,  the fund may be
exposed to some risk of loss from fluctuation of the dollar. Although JPMIM will
attempt to hold such  mismatchings to a minimum,  there can be no assurance that
JPMIM will be successful in doing so.

FUTURES AND OPTIONS TRANSACTIONS

    FUTURES  CONTRACTS provide for the sale by one party and purchase by another
party of a specific  security  at a  specified  future  time and price.  Futures
contracts  are traded on  national  futures  exchanges.  Futures  exchanges  and
trading are regulated under the Commodity  Exchange Act by the Commodity Futures
Trading Commission (CFTC), a U.S. government agency.

    Although  futures  contracts,  by their terms,  call for actual  delivery or
acceptance of the underlying securities,  in most cases the contracts are closed
out before the settlement date. Closing out a futures position is done by taking
an opposite position in an identical contract (i.e.,  buying a contract that has
previously been sold, or selling a contract that has previously been bought).

    To initiate and maintain open positions in a futures  contract,  the fund is
required to make a good faith margin  deposit in cash or  government  securities
with a broker or custodian. A margin deposit is intended to assure completion of
the contract  (delivery or acceptance of the  underlying  security) if it is not
terminated  prior  to  the  specified  delivery  date.  Minimum  initial  margin
requirements  are  established by the futures  exchanges and may be revised.  In
addition,  brokers may establish  deposit  requirements that are higher than the
exchange minimums.

   
    Once a futures  contract  position is opened,  the value of the  contract is
marked to market daily. If the futures contract price changes to the extent that
the margin on deposit does not satisfy margin requirements,  the contract holder
is required to pay additional  "variation"  margin.  Conversely,  changes in the
contract  value may reduce the  required  margin,  resulting  in a repayment  of
excess margin to the contract  holder.  Variation margin payments are made to or
from  the  futures  broker  as  long as the  contract  remains  open  and do not
constitute   margin   transactions   for  purposes  of  the  fund's   investment
restrictions.

    Those  who trade  futures  contracts  may be  broadly  classified  as either
"hedgers" or "speculators."  Hedgers,  such as the fund, use the futures markets
primarily to offset unfavorable  changes in the value of securities they hold or
expect to acquire for investment  purposes.  Speculators  are less likely to own
the securities  underlying the futures  contracts they trade and are more likely
to use  futures  contracts  with  the  expectation  of  realizing  profits  from
fluctuations in the prices of the underlying securities.
    

    Although  techniques  other than trading  futures  contracts  can be used to
control the fund's exposure to market fluctuations, the use of futures contracts
may be a more  effective  means of hedging  this  exposure.  While the fund pays
brokerage commissions in connection with opening and closing out futures


4                                                 AMERICAN CENTURY INVESTMENTS


positions,  these  costs are lower than the  transaction  costs  incurred in the
purchase and sale of the underlying securities.

   
    PURCHASING  PUT AND CALL  OPTIONS.  By  purchasing  a put  option,  the fund
obtains  the right  (but not the  obligation)  to sell the  option's  underlying
instrument at a fixed strike price. In return for this right,  the fund pays the
current market price for the option (known as the option premium).  Options have
various types of underlying instruments,  including specific securities, indices
of securities prices, and futures contracts. The fund may terminate its position
in a put option it has purchased by allowing it to expire or by  exercising  the
option.  If the  option is  allowed  to  expire,  the fund will lose the  entire
premium it paid. If the fund exercises the option,  it completes the sale of the
underlying  instrument  at the strike price.  The fund may also  terminate a put
option  position by closing it out in the secondary  market at its current price
if a liquid secondary market exists.
    

    The buyer of a typical  put option can expect to realize a gain if  security
prices fall substantially.  However,  if the underlying  instrument's price does
not fall enough to offset the cost of  purchasing  the  option,  a put buyer can
expect to suffer a loss (limited to the amount of the premium paid, plus related
transaction costs).

    The  features  of call  options  are  essentially  the  same as those of put
options,  except  that the  purchaser  of a call  option  obtains  the  right to
purchase,  rather than sell,  the underlying  instrument at the option's  strike
price.  A call buyer  typically  attempts  to  participate  in  potential  price
increases  of the  underlying  instrument  with risk  limited to the cost of the
option if security prices fall. At the same time, the buyer can expect to suffer
a loss if  security  prices do not rise  sufficiently  to offset the cost of the
option.

    WRITING PUT AND CALL OPTIONS.  If the fund writes a put option, it takes the
opposite  side of the  transaction  from the option's  purchaser.  In return for
receipt of the premium,  the fund assumes the obligation to pay the strike price
for the option's  underlying  instrument  if the other party chooses to exercise
the  option.  When  writing  an option on a futures  contract,  the fund will be
required to make margin payments to a broker or custodian as described above for
futures  contracts.  The fund may seek to terminate its position in a put option
it writes before  exercise by closing out the option in the secondary  market at
its current  price.  However,  if the  secondary  market is not liquid for a put
option the fund has  written,  the fund must  continue to be prepared to pay the
strike price while the option is outstanding,  regardless of price changes,  and
must continue to set aside assets to cover its position.

    If security  prices  rise, a put writer  would  generally  expect to profit,
although  the gain would be limited to the amount of the  premium  received.  If
security  prices remain the same over time,  the writer would likely also profit
by being able to close out the option at a lower price. If security prices fall,
the put writer would expect to suffer a loss.  This loss should be less than the
loss from purchasing the underlying  instrument directly,  however,  because the
premium  received  for writing  the option  should  mitigate  the effects of the
decline.

    Writing a call option  obligates  the fund to sell or deliver  the  option's
underlying  instrument  in return for the  strike  price  upon  exercise  of the
option.  The  characteristics  of writing  call  options are similar to those of
writing put  options,  except  that  writing  calls  generally  is a  profitable
strategy  if prices  remain  the same or fall.  Through  receipt  of the  option
premium,  a call writer  mitigates the effects of a price  decline.  At the same
time,  because  a call  writer  must  be  prepared  to  deliver  the  underlying
instrument  in return for the strike price even if its current value is greater,
a call writer gives up some ability to participate in security price increases.

    COMBINED  POSITIONS.  The fund may purchase and write options in combination
with one another, or in combination with futures or forward contracts, to adjust
the risk and return  characteristics of the overall position.  For example,  the
fund may  purchase a put option and write a call  option on the same  underlying
instrument   to   construct   a   combined   position   whose  risk  and  return
characteristics  are  similar to selling a futures  contract.  Another  possible
combined  position  would involve  writing a call option at one strike price and
buying a call  option at a lower  price to reduce the risk of the  written  call
option in the event of a substantial  price increase.  Because  combined options
positions involve multiple trades,  they result in higher  transaction costs and
may be more difficult to open and close out.


STATEMENT OF ADDITIONAL INFORMATION                                          5


    OVER-THE-COUNTER   OPTIONS.   Unlike  exchange-traded   options,  which  are
standardized  with  respect  to  the  underlying  instrument,  expiration  date,
contract size, and strike price, the terms of  over-the-counter  ("OTC") options
(options not traded on exchanges)  generally are established through negotiation
with the other  party to the option  contract.  While  this type of  arrangement
allows  the fund  greater  flexibility  to tailor an  option to its  needs,  OTC
options  generally  involve  greater credit risk than  exchange-traded  options,
which are guaranteed by the clearing  organizations  of the exchanges where they
are traded.  The risk of  illiquidity  is also greater with OTC options  because
these  options  generally can be closed out only by  negotiation  with the other
party to the option.

    OPTIONS ON FUTURES. By purchasing an option on a futures contract,  the fund
obtains the right,  but not the obligation,  to sell the futures contract (a put
option) or to buy the contract (a call option) at a fixed  "strike"  price.  The
fund can  terminate  its position in a put option by allowing it to expire or by
exercising the option.  If the option is exercised,  the fund completes the sale
of the  underlying  security  at the  strike  price.  Purchasing  an option on a
futures  contract does not require the fund to make margin  payments  unless the
option is exercised.

    CORRELATION OF PRICE CHANGES. Because there are a limited number of types of
exchange-traded   futures  and  options   contracts,   it  is  likely  that  the
standardized   contracts   available  will  not  match  the  fund's  current  or
anticipated  investments  exactly.  The fund may invest in futures  and  options
contracts  based on securities  with  different  issuers,  maturities,  or other
characteristics  from the securities in which it typically invests (for example,
by hedging  intermediate-term  securities  with a futures  contract  based on an
index of long-term bond prices);  this involves a risk that the futures position
will not track the performance of the fund's other investments.

    Options and futures  prices can diverge from the prices of their  underlying
instruments  even if the underlying  instruments  correlate well with the fund's
investments.  Options and futures prices are affected by factors such as current
and  anticipated  short-term  interest  rates,  changes  in  volatility  of  the
underlying instrument,  and the time remaining until expiration of the contract,
which may not affect  security  prices the same way.  Imperfect  correlation may
also result from differing  levels of demand in the options and futures  markets
and securities markets,  from structural  differences in how options and futures
and  securities are traded,  or from the  imposition of daily price  fluctuation
limits or trading  halts.  The fund may  purchase  or sell  options  and futures
contracts  with a greater or lesser value than the securities it wishes to hedge
or intends to purchase in an effort to compensate for  differences in volatility
between the contract and the securities,  although this may not be successful in
all  cases.  If price  changes in the fund's  options or futures  positions  are
poorly correlated with its other investments,  the positions may fail to produce
anticipated  gains or  result in  losses  that are not  offset by gains in other
investments.

    FUTURES AND OPTIONS CONTRACTS RELATING TO FOREIGN  CURRENCIES.  The fund may
purchase and sell currency  futures and purchase and write  currency  options to
increase or decrease its exposure to different  foreign  currencies.  A fund may
also purchase and write currency  options in connection with currency futures or
forward contracts.

    Currency  futures   contracts  are  similar  to  forward  currency  exchange
contracts,  except that they are traded on exchanges and have standard  contract
sizes and delivery dates.  Most currency  futures  contracts call for payment or
delivery in U.S. dollars.

   
    The uses and risks of  currency  futures  are  similar  to those of  futures
relating to securities or indices,  as described above.  Currency futures values
can be expected to correlate  with  exchange  rates,  but may not reflect  other
factors that affect the value of the fund's  investments.  A currency hedge, for
example, should protect a German-mark-denominated security from a decline in the
German mark, but it will not protect the fund against a price decline  resulting
from a deterioration in the issuer's creditworthiness.
    

    LIQUIDITY OF FUTURES  CONTRACTS  AND OPTIONS.  There is no assurance  that a
liquid secondary market will exist for any particular futures contract or option
at any  particular  time.  Options may have  relatively  low trading  volume and
liquidity if their strike  prices are not close to the  underlying  instrument's
current  price.  In addition,  exchanges may establish  daily price  fluctuation
limits for futures  contracts  and options and may halt  trading if a contract's
price moves


6                                                 AMERICAN CENTURY INVESTMENTS


upward or downward more than the limit on a given day. On volatile  trading days
when the price fluctuation limit is reached or a trading halt is imposed, it may
be  impossible  for the fund to enter into new  positions  or close out existing
positions.  If the  secondary  market for a contract was not liquid,  because of
price  fluctuation  limits  or  otherwise,  prompt  liquidation  of  unfavorable
positions  could be difficult or  impossible,  and the fund could be required to
continue  holding a position until delivery or expiration  regardless of changes
in its value.  Under these  circumstances,  the fund's  access to assets held to
cover its future positions could also be impaired.

    Futures and options  trading on foreign  exchanges  may not be  regulated as
effectively  as similar  transactions  in the U.S. and may not involve  clearing
mechanisms or guarantees  similar to those  available in the U.S. The value of a
futures  contract  or  option  traded  on a foreign  exchange  may be  adversely
affected by the imposition of different  exercise and settlement terms,  trading
procedures, and margin requirements, and lesser trading volume.

    RESTRICTIONS ON THE USE OF FUTURES CONTRACTS AND OPTIONS. The fund has filed
a notice of  eligibility  for exclusion as a "commodity  pool operator" with the
Commodity   Futures  Trading   Commission   (CFTC)  and  the  National   Futures
Association, which regulates trading in the futures markets. The fund intends to
comply with Section 4.5 of the  regulations  under the  Commodity  Exchange Act,
which  limits the extent to which the fund can commit  assets to initial  margin
deposits and options premiums.

    The fund may enter into futures transactions (including related options) for
hedging purposes without regard to the percentage of assets committed to initial
margin and for other than hedging  purposes  provided  that assets  committed to
initial margin deposits on such instruments, plus premiums paid for open futures
options   positions,   less  the  amount  by  which  any  such   positions   are
"in-the-money,"  do not  exceed 5% of the  fund's  total  assets.  To the extent
required by law, the fund will set aside cash and appropriate liquid assets in a
segregated  account to cover its  obligations  related to futures  contracts and
options.

   
    Financial  futures  or  options  purchased  or  sold  by the  fund  will  be
standardized  and traded through the facilities of a U.S. or foreign  securities
association or listed on a U.S. or foreign  securities or commodities  exchange,
board of trade, or similar entity,  or quoted on an automatic  quotation system,
except that the fund may effect  transactions in  over-the-counter  options with
primary U.S.  government  securities  dealers  recognized by the Federal Reserve
Bank of New  York.  In  addition,  the fund has  undertaken  to limit  aggregate
premiums  paid on all options  purchased  by the fund to no more than 20% of the
fund's total assets.
    

INVESTMENT RESTRICTIONS

    The fund's  investment  restrictions  are set forth below.  These investment
restrictions  are  fundamental  and may not be changed  without  approval  of "a
majority of the outstanding votes of shareholders" of the fund, as determined in
accordance with the Investment Company Act.

    AS A FUNDAMENTAL POLICY, THE FUND SHALL NOT:

  1)     issue  senior  securities,  except as  permitted  under the  Investment
         Company Act of 1940.

  2)     borrow money, except that the fund may
         borrow money for temporary or emergency purposes (not for leveraging or
         investment)  in an amount  not  exceeding  331/3% of the  fund's  total
         assets  (including the amount  borrowed) less  liabilities  (other than
         borrowings).

  3)     lend any security or make any other loan if, as
         a result,  more than 331/3% of the fund's total assets would be lent to
         other parties,  except,  (i) through the purchase of debt securities in
         accordance with its investment objective,  policies and limitations, or
         (ii) by engaging in  repurchase  agreements  with  respect to portfolio
         securities.

  4)     purchase or sell real estate  unless  acquired as a result of ownership
         of securities or other  instruments.  This policy shall not prevent the
         fund from investment in securities or other instruments  backed by real
         estate or  securities  of  companies  that  deal in real  estate or are
         engaged in the real estate business.

  5)     concentrate  its  investments  in securities of issuers in a particular
         industry  (other  than  securities  issued  or  guaranteed  by the U.S.
         government or any of its agencies or instrumentalities).


STATEMENT OF ADDITIONAL INFORMATION                                           7


  6)     act as an  underwriter  of securities  issued by others,  except to the
         extent  that the fund  may be  considered  an  underwriter  within  the
         meaning of the Securities Act of 1933 in the  disposition of restricted
         securities.

  7)     purchase or sell physical  commodities  unless  acquired as a result of
         ownership  of  securities  or other  instruments;  provided  that  this
         limitation  shall not  prohibit  the fund from  purchasing  or  selling
         options and futures  contracts or from investing in securities or other
         instruments backed by physical commodities.

  8)     invest for purposes of exercising control over management.

    In  addition,  the fund is subject to the  following  additional  investment
restrictions  which  are not  fundamental  and may be  changed  by the  Board of
Trustees.

    AS AN OPERATING POLICY, THE FUND:

  a)     to meet  federal tax  requirements  for  qualification  as a "regulated
         investment company," limits its investment so that at the close of each
         quarter of its taxable  year:  (i) with regard to at least 50% of total
         assets,  no more than 5% of total assets are invested in the securities
         of a single  issuer,  and (ii) no more  than  25% of total  assets  are
         invested in the securities of a single issuer. Limitations (i) and (ii)
         do not apply to  "Government  securities"  as defined  for  federal tax
         purposes.  The fund does not,  with respect to 75% of its total assets,
         currently  intend to purchase the  securities of any issuer (other than
         securities  issued or guaranteed  by the U.S.  government or any of its
         agencies or instrumentalities)  if, as a result thereof, the fund would
         own more than 10% or the outstanding voting securities of such issuer.

  b)     shall not purchase additional  investment securities at any time during
         which outstanding borrowings exceed 5% of the total assets of the fund.

  c)     shall not purchase  any  security or enter into a repurchase  agreement
         if, as a result,  more than 15% of its net assets  would be invested in
         repurchase  agreements not entitling the holder to payment of principal
         and interest  within seven days and in securities  that are illiquid by
         virtue of legal or contractual restrictions on resale or the absence of
         a readily available market.

  d)     shall  not sell  securities  short,  unless it owns or has the right to
         obtain securities  equivalent in kind and amount to the securities sold
         short, and provided that  transactions in futures contracts and options
         are not deemed to constitute selling securities short.

  e)     shall not  purchase  securities  on  margin,  except  that the fund may
         obtain such  short-term  credits as are  necessary for the clearance of
         transactions,  and provided  that margin  payments in  connection  with
         futures contracts and options on futures contracts shall not constitute
         purchasing securities on margin.

   
    For  purposes  of  the  above  investment   restriction  (5),   relating  to
concentration, a fund shall not purchase any securities which would cause 25% or
more of the  value of the  fund's  total  assets at the time of  purchase  to be
invested in the  securities of one or more issuers  conducting  their  principal
business  activities  in the  same  industry,  provided  that  (a)  there  is no
limitation  with  respect  to  obligations  issued  or  guaranteed  by the  U.S.
government,  any  state,  territory  or  possession  of the United  States,  the
District of Columbia or any of their authorities, agencies, instrumentalities or
political  subdivisions and repurchase  agreements  secured by such instruments,
(b) wholly-owned finance companies will be considered to be in the industries of
their  parents  if their  activities  are  primarily  related to  financing  the
activities  of the parents,  (c)  utilities  will be divided  according to their
services,  for example,  gas, gas  transmission,  electric and gas, electric and
telephone will each be considered a separate  industry,  and (d) personal credit
and business credit businesses will be considered separate industries.
    

    Unless  otherwise   indicated,   percentage   limitations  included  in  the
restrictions apply at the time transactions are entered into.  Accordingly,  any
later  increase or decrease  beyond the specified  limitation  resulting  from a
change in the fund's net assets will not be considered in determining whether it
has complied with its investment restrictions.

PORTFOLIO TRANSACTIONS

    In selecting  broker-dealers to execute  transactions on behalf of the fund,
JPMIM seeks the best net price


8                                                AMERICAN CENTURY INVESTMENTS


and execution available. In assessing the best net price and execution available
for any fund  transaction,  JPMIM will  consider  all factors it deems  relevant
including,  but not limited to, (i) the breadth of the market for the  security,
(ii) the price of the  security,  (iii) the  financial  condition  and execution
capability of the  broker-dealer,  and (iv) the reasonableness of any commission
for the specific  transaction.  When the  execution  and price offered by two or
more broker-dealers are comparable,  JPMIM may, with discretion,  in recognition
of the value of brokerage or research  services  provided by the  broker-dealer,
purchase and sell portfolio  securities to and from  broker-dealers  who provide
the fund  with  research  and  other  services  provided,  however,  that in all
instances best net price and execution shall be the controlling  factor,  and in
no event may JPMIM pay to a  broker-dealer  a commission in excess of that which
another broker-dealer would have charged for effecting the same transaction.

    When  JPMIM  deems  the  purchase  or sale of a  security  to be in the best
interest  of the  fund as well  as its  other  clients,  it may,  to the  extent
permitted by applicable  law,  aggregate the  securities to be sold or purchased
with those of its other clients.  In such an event, the allocation of securities
so  purchased  or sold will be made by JPMIM in a manner it  considers to be the
most equitable and consistent with its fiduciary obligations to the fund and its
other clients.

    JPMIM is authorized  to execute such  documents as may be required to affect
forward foreign currency exchange  contracts on behalf of the fund. In selecting
counterparties for such contracts,  JPMIM seeks the best overall terms available
and executes or directs the execution of all such  transactions  as permitted by
law and consistent with the best interest of the fund.

    The fund's portfolio  turnover rates are listed in the Financial  Highlights
in the Prospectus.

TRANSACTIONS WITH JPMIM AFFILIATES

   
    As described in further detail under the section titled  "MANAGEMENT," JPMIM
is  subadvisor  to the fund  pursuant  to an  agreement  with  American  Century
Investment Management, Inc.
    

    JPMIM, Morgan Guaranty Trust Company of New York ("Morgan  Guaranty"),  J.P.
Morgan  Securities  Inc., and J.P.  Morgan  Securities  Limited are wholly owned
subsidiaries  of  J.P.  Morgan  &  Co.   Incorporated,   hereafter  referred  to
collectively as "Morgan affiliates."

   
    J. P. Morgan Securities Inc. is a broker-dealer  registered with the SEC and
is a member of the National Association of Securities Dealers. It is active as a
dealer in U.S.  government  securities  and an underwriter of and dealer in U.S.
government agency securities and money market instruments.
    

    J.P.  Morgan  Securities  Limited  underwrites,   distributes,   and  trades
international  securities,  including  Eurobonds,  commercial paper, and foreign
government  bonds.  J.P. Morgan & Co.  Incorporated  issues commercial paper and
long-term debt  securities.  Morgan  Guaranty and some of its  affiliates  issue
certificates of deposit and create bankers' acceptances.

    To the  extent  that  the fund  invests  a  portion  of its  assets  in such
obligations,  it will not  invest  in  securities  issued or  created  by Morgan
affiliates.

    Certain  activities of Morgan  affiliates may affect the fund's portfolio or
the markets for securities in which the fund invests. In particular,  activities
of Morgan  affiliates  may affect the prices of securities  held by the fund and
the  supply  of  issues  available  for  purchase  by the  fund.  Where a Morgan
affiliate holds a large portion of a given issue,  the price at which that issue
is traded may  influence  the price of similar  securities  the fund holds or is
considering purchasing.

    The fund will not purchase securities  directly from Morgan affiliates,  and
the size of Morgan  affiliates'  holdings  may limit the  selection of available
securities in a particular  maturity,  yield, or price range.  The fund will not
execute any transactions  with Morgan  affiliates and will use only unaffiliated
broker-dealers.  In addition,  the fund will not purchase any securities of U.S.
government  agencies during the existence of an underwriting or selling group of
which a Morgan affiliate is a member, except to the extent permitted by law.

    The fund's  ability to engage in  transactions  with  Morgan  affiliates  is
restricted by the SEC and the Federal Reserve Board. In JPMIM's  opinion,  these
limitations  should not  significantly  impair the fund's  ability to pursue its
investment objectives.  However, there may be circumstances in which the fund is
disadvantaged  by  these  limitations  compared  to  other  funds  with  similar
investment objectives that are not subject to these limitations.

    In acting for its fiduciary  accounts,  including  the fund,  JPMIM will not
discuss its investment


STATEMENT OF ADDITIONAL INFORMATION                                          9


decisions or positions  with the  personnel of any Morgan  affiliate.  JPMIM has
informed the fund that, in making  investment  decisions,  it will not obtain or
use  material,  non-public  information  in the  possession  of any  division or
department of JPMIM or other Morgan affiliates.

    The commercial  banking  divisions of Morgan Guaranty and its affiliates may
have deposit,  loan, and other commercial banking  relationships with issuers of
securities the fund purchases, including loans that may be repaid in whole or in
part with the proceeds of  securities  purchased  by the fund.  Except as may be
permitted  by  applicable  law,  the fund will not  purchase  securities  in any
primary public offering when the prospectus  discloses that the proceeds will be
used to repay a loan from Morgan Guaranty. JPMIM will not cause the fund to make
investments for the direct purpose of benefitting other commercial  interests of
Morgan affiliates at the fund's expense.

VALUATION OF PORTFOLIO SECURITIES

   
    The fund's net asset value per share  ("NAV") is  calculated as of the close
of business of the New York Stock  Exchange (the  "Exchange")  usually at 3 p.m.
Central  time each day the  Exchange  is open for  business.  The  Exchange  has
designated the following  holiday  closings for 1998: New Year's Day (observed),
Martin  Luther  King Jr.  Day,  Presidents'  Day,  Good  Friday,  Memorial  Day,
Independence  Day, Labor Day,  Thanksgiving  Day, and Christmas Day  (observed).
Although  the fund  expects  the same  holiday  schedule  to be  observed in the
future, the Exchange may modify its holiday schedule at any time.
    

    Securities  are valued at market,  depending  upon the market or exchange on
which they trade. Price quotations for exchange-listed securities are taken from
the primary  exchanges on which these  securities  trade.  Securities  traded on
exchanges will be valued at their last sale prices. If no sale is reported,  the
mean  between  the  latest  bid and  asked  prices  is used.  Securities  traded
over-the-counter  will be valued at the mean  between  the  latest bid and asked
prices.  Fixed-income  securities  are  priced at  market  value on the basis of
market  quotations  supplied  by  independent   pricing  services.   Trading  of
securities  in foreign  markets may not take place on every day the  Exchange is
open,  and trading takes place in various  foreign  markets on days on which the
Exchange  and the fund's  offices are not open and the fund's net asset value is
not calculated. The fund's net asset value may be significantly affected on days
when  shareholders  have no  access  to the fund.  Securities  for which  market
quotations are not readily available, or which may change in value due to events
occurring  after their  primary  exchange  has closed for the day, are valued at
fair market value as  determined  in good faith under the direction of the Board
of Trustees.

    JPMIM  typically  completes  its  trading  on behalf of the fund in  various
markets  before  the  Exchange  closes for the day,  and the value of  portfolio
securities is determined when the primary market for those securities closes for
the day. Foreign currency  exchange rates are also determined prior to the close
of the Exchange.  However,  if  extraordinary  events occur that are expected to
affect the value of a portfolio security after the close of the primary exchange
on which it is  traded,  the  security  will be valued at fair  market  value as
determined in good faith under the direction of the Board of Trustees.

PERFORMANCE

    The fund's  yield and total  return may be quoted in  advertising  and sales
literature.  These figures,  as well as the fund's share price,  will vary. Past
performance should not be considered an indication of future results.

    Yield quotations are based on the investment  income per share earned during
a  particular  30-day  period,  less  expenses  accrued  during the period  (net
investment  income),  and are  computed  by dividing  the fund's net  investment
income  by its  share  price  on the last day of the  period,  according  to the
following formula:

    YIELD = 2 [(a - b + 1)(6 )- 1]
               ------
                 cd

where a = dividends and interest earned during the period,  b = expenses accrued
for the period (net of  reimbursements),  c = the average daily number of shares
outstanding during the period that were entitled to receive  dividends,  and d =
the maximum offering price per share on the last day of the period.


10                                                AMERICAN CENTURY INVESTMENTS


   
    For the 30-day period ended December 31, 1997, the fund's yield was 4.62%.
    

    Total returns quoted in advertising and sales literature reflect all aspects
of the fund's return,  including the effect of reinvesting dividends and capital
gain distributions and any change in the fund's NAV per share during the period

    Average  annual total returns are  calculated by  determining  the growth or
decline  in value of a  hypothetical  historical  investment  in the fund over a
stated period, and then calculating the annually compounded percentage rate that
would have  produced  the same  result if the rate of growth or decline in value
had been constant  throughout the period. For example, a cumulative total return
of 100% over 10 years would produce an average annual return of 7.18%,  which is
the steady annual rate that would result in 100% growth on a compounded basis in
10 years. While average annual total returns are a convenient means of comparing
investment alternatives, investors should realize that the fund's performance is
not constant over time,  but changes from year to year,  and that average annual
total  returns  represent  averaged  figures as  opposed to actual  year-to-year
performance.

   
    In addition to average annual total returns,  the fund may quote  unaveraged
or  cumulative  total  returns  reflecting  the  simple  change  in  value of an
investment over a stated period. Average annual and cumulative total returns may
be quoted as a  percentage  or as a dollar  amount and may be  calculated  for a
single investment, a series of investments,  or a series of redemptions over any
time period.  Total  returns may be broken down into their  components of income
and capital  (including  capital gains and changes in share price) to illustrate
the relationship of these factors and their  contributions to total return.  The
fund's one year,  three year,  five year and life of fund  average  annual total
return through December 31, 1997, are indicated in the following table:

                                             Average Annual Total Return
- --------------------------------------------------------------------------------
One Year                                               (5.88)%
Three Year                                              7.59%
Five Year                                               7.17%
Life of Fund                                            7.18%
- --------------------------------------------------------------------------------
    

    The fund commenced  operations on January 7, 1992.  Performance  information
may be quoted numerically or in a table, graph, or similar illustration.

   
    The fund's  performance may be compared with the performance of other mutual
funds  tracked by mutual  fund rating  services or with other  indices of market
performance.  This may include comparisons with funds that are sold with a sales
charge or deferred  sales charge.  Sources of economic data that may be used for
such comparisons may include,  but are not limited to, U.S. Treasury bill, note,
and bond yields,  money market fund yields,  U.S. government debt and percentage
held by  foreigners,  the U.S. money supply,  net free  reserves,  and yields on
current-coupon  Government  National  Mortgage  Association  securities  (GNMAs)
(source:  Board of Governors of the Federal Reserve  System);  the federal funds
and discount rates (source:  Federal Reserve Bank of New York); yield curves for
U.S.  Treasury  securities  and  AA/AAA-rated   corporate   securities  (source:
Bloomberg  Financial  Markets);  yield curves for AAA-rated  tax-free  municipal
securities (source:  Telerate);  yield curves for foreign government  securities
(sources:  Bloomberg Financial Markets and Data Resources,  Inc.); total returns
on foreign bonds (source: J.P. Morgan Securities Inc.); various U.S. and foreign
government reports; the junk bond market (source: Data Resources, Inc.); the CRB
Futures Index  (source:  Commodity  Index  Report);  the price of gold (sources:
London a.m./p.m.  fixing and New York Comex Spot Price);  rankings of any mutual
fund or mutual fund  category  tracked by Lipper  Analytical  Services,  Inc. or
Morningstar,   Inc.;  mutual  fund  rankings  published  in  major,   nationally
distributed  periodicals;  data provided by the  Investment  Company  Institute;
Ibbotson Associates, STOCKS, BONDS, BILLS, AND INFLATION; major indices of stock
market performance; and indices and historical data supplied by major securities
brokerage or investment  advisory firms. The fund may also utilize reprints from
newspapers  and magazines  furnished by third  parties to illustrate  historical
performance.

    The advisor may obtain ratings on the safety of fund shares from one or more
rating  agencies  and may  publish  such  ratings  in  advertisements  and sales
literature.
    


STATEMENT OF ADDITIONAL INFORMATION                                        11


   
MULTIPLE CLASS PERFORMANCE ADVERTISING

    Pursuant to the Multiple Class Plan, the funds may issue additional  classes
of existing  funds or introduce  new funds with multiple  classes  available for
purchase.  To the extent a new class is added to an existing  fund,  the manager
may, in compliance with SEC and NASD rules,  regulations and guidelines,  market
the new class of shares  using the  historical  performance  information  of the
original class of shares. When quoting performance information for the new class
of shares for  periods  prior to the first full  quarter  after  inception,  the
original class'  performance will be restated to reflect the expenses of the new
class.  For  periods  after the  first  full  quarter  after  inception,  actual
performance of the new class will be used.
    

TAXES

    The fund will be treated as a separate  corporation  for federal  income tax
purposes  and intends to qualify  annually as a "regulated  investment  company"
under  Subchapter  M of the  Internal  Revenue  Code of 1986,  as  amended  (the
"Code"). By so qualifying, the fund will not incur federal or state income taxes
on its net  investment  income or net  realized  capital  gains  distributed  to
shareholders

   
    The fund may be subject to a 4% excise tax on a portion of its undistributed
income. To avoid the tax, the fund must distribute  annually at least 98% of its
ordinary  income (not taking into  account any capital  gains or losses) for the
calendar  year and at least  98% of its  capital  gain net  income  and  foreign
currency  income for the 12-month  period ending on October 31st of the calendar
year. Any dividend declared by the fund in October, November, or December of any
year and payable to  shareholders  of record on a specified date in such a month
shall be deemed to have been  received by each  shareholder  on December 31st of
such year and to have been paid by the fund not later than December 31st of such
year, provided that such dividend is actually paid by the fund during January of
the following year.
    

    The fund's  transactions in foreign currencies,  forward contracts,  options
and  futures  contracts  (including  options and  futures  contracts  on foreign
currencies) will be subject to special  provisions of the Code that, among other
things, may affect the character of gains and losses realized by the fund (i.e.,
may  affect  whether  gains or  losses  are  ordinary  or  capital),  accelerate
recognition  of  income  to  the  fund,  defer  fund  losses,   and  affect  the
determination of whether capital gains and losses are characterized as long-term
or short-term  capital gains or losses.  These rules could therefore  affect the
character, amount and timing of distributions to shareholders.  These provisions
also may require the fund to mark to market  certain  types of the  positions in
its portfolio (i.e.,  treat them as if they were sold), which may cause the fund
to recognize income without  receiving cash with which to make  distributions in
amounts  necessary  to satisfy  the 90% and 98%  distribution  requirements  for
relief from income and excise  taxes,  respectively.  The fund will  monitor its
transactions   and  may  make  such  tax  elections  as  fund  management  deems
appropriate  with respect to foreign  currency,  options,  futures  contracts or
forward contracts. The fund's status as a regulated investment company may limit
its  transactions  involving  foreign  currency,  futures,  options  and forward
contracts.

    Under the Code,  gains or losses  attributable  to  fluctuations in exchange
rates that occur between the time the fund accrues  income or other  receivables
or accrues expenses or other  liabilities  denominated in a foreign currency and
the time the fund actually  collects such  receivables or pays such  liabilities
generally  are treated as ordinary  income or loss.  Similarly,  in disposing of
debt securities  denominated in foreign  currencies,  certain  forward  currency
contracts, or other instruments, gains or losses attributable to fluctuations in
the value of a foreign  currency  between the date the  security,  contract,  or
other  instrument  is acquired  and the date it is disposed of are also  usually
treated as ordinary income or loss.  Under Section 988 of the Code,  these gains
or losses may increase or decrease the amount of the fund's  investment  company
taxable income distributed to shareholders as ordinary income.

    Earnings derived by the fund from sources outside the U.S. may be subject to
non-U.S.  withholding  and possibly  other  taxes.  Such taxes may be reduced or
eliminated under the terms of a U.S. income tax treaty,  and the fund intends to
undertake any procedural  steps required to claim the benefits of such a treaty.
With respect to any non-U.S. taxes actually


12                                               AMERICAN CENTURY INVESTMENTS


   
paid by the fund,  if more than 50% in value of the fund's  total  assets at the
close of any taxable year consists of securities  of foreign  corporations,  the
fund may elect to treat any non-U.S.  income and similar taxes it pays as though
the taxes were paid by its shareholders.
    

    Some of the debt  securities that may be acquired by the fund may be treated
as debt securities originally issued at a discount. Generally, the amount of the
original issue  discount (OID) is treated as interest  income and is included in
income over the term of the debt security even though  payment of that amount is
not received until a later time, usually when the debt security matures.

    Some of the debt  securities may be purchased by the fund at a discount that
exceeds the  original  issue  discount  on such debt  securities,  if any.  This
additional  discount represents market discount for federal income tax purposes.
The gain realized on the  disposition of any taxable debt security having market
discount will be treated as ordinary income to the extent it does not exceed the
accrued  market  discount on such debt security if such market  discount was not
previously included in taxable income.  Generally,  market discount accrues on a
daily  basis for each day the debt  security  is held by the fund at a  constant
rate over the time remaining to the debt security's maturity or, at the election
of the fund,  at a  constant  yield to  maturity  that takes  into  account  the
semiannual compounding of interest.

   
    Exchange control  regulations  that may restrict  repatriation of investment
income,  capital,  or the proceeds of securities sales by foreign  investors may
limit the fund's ability to make sufficient  distributions to satisfy the income
and excise tax distribution requirements.
    

TAXATION OF NON-U.S. SHAREHOLDERS

    U.S.  taxation of a shareholder  who is a  non-resident  alien or a non-U.S.
corporation,  partnership,  trust,  or estate  depends on whether  the  payments
received from a fund are  "effectively  connected" with a U.S. trade or business
carried on by such a shareholder.  Ordinarily,  income from the fund will not be
treated as "effectively connected."

    If the payments received from the fund are effectively connected with a U.S.
trade or business of the shareholder,  then all  distributions of net investment
income and net capital gains of the fund and gains realized upon the redemption,
exchange, or other taxable disposition of shares will be subject to U.S. federal
income tax at the graduated rates  applicable to U.S.  citizens,  residents,  or
domestic  entities,  although  the tax may be  eliminated  under the terms of an
applicable U.S. income tax treaty.  Non-U.S.  corporate shareholders also may be
subject to a branch profits tax with respect to payments from the fund.

    If the  shareholder  is not  engaged  in a U.S.  trade or  business,  or the
payments  received from the fund are not effectively  connected with the conduct
of such a trade or business,  the shareholder  will generally be subject to U.S.
tax  withholding  at the rate of 30% (or a lower rate under an  applicable  U.S.
income tax treaty) on  distributions  of net investment  income and net realized
short-term capital received.  Non-U.S.  shareholders not engaged in a U.S. trade
or business,  or having no effectively  connected income, may also be subject to
U.S. tax at the rate of 30% (or a lower treaty rate) on additional distributions
resulting from the fund's election to treat any non-U.S. taxes it pays as though
the taxes were paid by its shareholders.

    Distributions   of  net  realized   long-term   capital  gains  to  non-U.S.
shareholders and any capital gains realized by them upon the redemption or other
taxable  disposition of shares generally will not be subject to U.S. tax. In the
case of individuals  and other  non-exempt,  non-U.S.  shareholders  who fail to
furnish the fund with required certifications  regarding their foreign status on
IRS Form W-8 or an  appropriate  substitute,  the fund may be required to impose
backup  withholding  of  U.S.  tax at the  rate of 31% on  distributions  of net
realized capital gains and proceeds of redemptions and exchanges.

    The  information  above is only a summary of some of the tax  considerations
affecting  the fund and its  shareholders;  no attempt  has been made to discuss
individual tax consequences.  The fund and the fund's  distributions may also be
subject to state,  local,  or foreign taxes. A prospective  investor may wish to
consult a tax advisor to  determine  whether  the fund is a suitable  investment
based on his or her tax situation.

ABOUT THE TRUST

    American  Century  International  Bond Funds (the  "Trust") is a  registered
open-end management investment company that was organized as a Massachusetts


STATEMENT OF ADDITIONAL INFORMATION                                          13


business  trust on August  28,  1991.  The Trust was  formerly  known as "Benham
International  Funds."  American  Century  --  Benham  International  Bond  Fund
(formerly known as American  Century--Benham  European  Government Bond Fund and
Benham European Government Bond Fund) is currently the sole series of the Trust.
The Board of Trustees may create additional series from time to time.

    The Declaration of Trust permits the Board of Trustees to issue an unlimited
number of full and fractional  shares of beneficial  interest without par value,
which may be  issued  in  series  (funds).  Shares  issued  are  fully  paid and
nonassessable and have no preemptive, conversion, or similar rights.

    Shares of the fund have equal voting rights, provided that each series votes
separately  on  matters  affecting  only  that  series.  Voting  rights  are not
cumulative.  In the election of Trustees, each nominee may receive only one vote
from  each  shareholder,  and,  because  the  election  requires  only a  simple
majority, more than 50% of the shares voting in an election can elect all of the
Trustees.

    Each shareholder has rights to dividends and  distributions  declared by the
fund and to the net  assets  of the fund  upon its  liquidation  or  dissolution
proportionate to his or her share ownership interest in the fund.

    Shareholders  of  a  Massachusetts   business  trust  could,  under  certain
circumstances,  be held  personally  liable  as  partners  for its  obligations.
However,  the Declaration of Trust contains an express disclaimer of shareholder
liability for acts or  obligations of the Trust.  The  Declaration of Trust also
provides for  indemnification  and  reimbursement of expenses of any shareholder
held personally  liable for  obligations of the Trust.  The Declaration of Trust
provides that the Trust will, upon request, assume the defense of any claim made
against any  shareholder  for any act or obligation of the Trust and satisfy any
judgment  thereon.  The Declaration of Trust further provides that the Trust may
maintain appropriate insurance (for example,  fidelity,  bonding, and errors and
omissions  insurance)  for  the  protection  of  the  Trust,  its  shareholders,
Trustees,  officers,  employees,  and  agents to cover  possible  tort and other
liabilities.  Thus,  the risk of a  shareholder  incurring  financial  loss as a
result of  shareholder  liability  is  limited  to  circumstances  in which both
inadequate insurance exists and the Trust is unable to meet its obligations.

    CUSTODIAN BANKS:  State Street Bank and Trust Company,  225 Franklin Street,
Boston, Massachusetts,  02101 and Commerce Bank, N.A., 1000 Walnut, Kansas City,
Missouri  64106 serve as custodians of the fund's assets.  Services  provided by
the custodian  bank include (i) settling  portfolio  purchases  and sales,  (ii)
reporting failed trades,  (iii) identifying and collecting portfolio income, and
(iv)  providing  safekeeping  of  securities.  The  custodian  takes  no part in
determining the fund's  investment  policies or in determining  which securities
are sold or purchased by the fund.

   
    INDEPENDENT  ACCOUNTANTS:  Coopers &  Lybrand  L.L.P.  serve as  independent
accountants of the fund. The address of Coopers & Lybrand L.L.P.  is City Center
Square, 1100 Main Street, Suite 900, Kansas City, Missouri 64105-2140.
    

MULTIPLE CLASS STRUCTURE

    The  fund's  Board of  Trustees  has  adopted  a  multiple  class  plan (the
"Multiclass  Plan") pursuant to Rule 18f-3 adopted by the SEC.  Pursuant to such
plan, the funds may issue up to three classes of funds:  an Investor  Class,  an
Advisor Class and an Institutional Class. Not all funds offer all three classes.

   
    The Investor Class is made available to investors directly by the investment
manager  through  its  affiliated  broker-dealer,  American  Century  Investment
Services,  Inc.,  for a  single  unified  management  fee,  without  any load or
commission.  The  Institutional  and  Advisor  Classes  are  made  available  to
institutional  shareholders  or  through  financial  intermediaries  that do not
require  the same level of  shareholder  and  administrative  services  from the
manager as  Investor  Class  shareholders.  As a result,  the manager is able to
charge  these  classes  a lower  unified  management  fee.  In  addition  to the
management  fee,  however,   Advisor  Class  shares  are  subject  to  a  Master
Distribution and Shareholder  Services Plan (described on the following  pages).
The  plan  has  been  adopted  by the  fund's  Board  of  Trustees  and  initial
shareholder  in  accordance  with  Rule  12b-1  adopted  by the  SEC  under  the
Investment Company Act.
    


14                                              AMERICAN CENTURY INVESTMENTS


RULE 12B-1

    Rule 12b-1 permits an investment company to pay expenses associated with the
distribution  of its shares in accordance  with a plan adopted by the investment
company's Board of Trustees and approved by its  shareholders.  Pursuant to such
rule, the Board of Trustees and initial  shareholder of the fund's Advisor Class
has approved and entered into a Master  Distribution  and  Shareholder  Services
Plan,  with respect to the Advisor Class (the "Plan").  The Master  Distribution
and Shareholder Services Plan is described below.

    In adopting  the Plan,  the Board of Trustees  [including a majority who are
not  "interested  persons"  of the funds (as defined in the  Investment  Company
Act),  hereinafter  referred to as the "independent  trustees"]  determined that
there was a reasonable  likelihood  that the Plan would benefit the fund and the
shareholders of the affected  class.  Pursuant to Rule 12b-1,  information  with
respect to revenues  and  expenses  under the Plan is  presented to the Board of
Trustees quarterly for its consideration in connection with its deliberations as
to the continuance of the Plan.  Continuance of the Plan must be approved by the
Board of Trustees  (including a majority of the independent  trustees) annually.
The Plan may be amended by a vote of the Board of Trustees (including a majority
of the  independent  trustees),  except  that  the Plan  may not be  amended  to
materially  increase the amount to be spent for  distribution  without  majority
approval  of the  shareholders  of  the  affected  class.  The  Plan  terminates
automatically in the event of an assignment and may be terminated upon a vote of
a  majority  of  the  independent  trustees  or by  vote  of a  majority  of the
outstanding voting securities of the affected class.

    All fees paid under the plans will be made in accordance  with Section 26 of
the Rules of Fair Practice of the National Association of Securities Dealers.

MASTER DISTRIBUTION AND SHAREHOLDER  SERVICES PLAN

    As described in the Prospectuses, the fund's Advisor Class of shares is made
available to participants in employer-sponsored  retirement or savings plans and
to  persons  purchasing  through  financial   intermediaries,   such  as  banks,
broker-dealers  and insurance  companies.  The Distributor enters into contracts
with various  banks,  broker-dealers,  insurance  companies and other  financial
intermediaries  with respect to the sale of the funds'  shares and/or the use of
the fund's shares in various  investment  products or in connection with various
financial services.

    Certain  recordkeeping and administrative  services that are provided by the
fund's transfer agent for the Investor Class  shareholders may be performed by a
plan sponsor (or its agents) or by a financial  intermediary for shareholders in
the Advisor Class.  In addition to such services,  the financial  intermediaries
provide various distribution services.

    To enable  the fund's  shares to be made  available  through  such plans and
financial  intermediaries,  and to compensate them for such services, the funds'
investment  manager  has  reduced  its  management  fee by 0.25% per annum  with
respect to the Advisor Class shares and the fund's Board of Trustees has adopted
the Plan.  Pursuant to such Plan, the Advisor Class shares pay the Distributor a
fee of 0.50%  annually  of the  aggregate  average  daily  assets of the  fund's
Advisor  Class  shares,  0.25% of which is paid  for  Shareholder  Services  (as
described above) and 0.25% of which is paid for distribution services.

    Distribution  services  include any activity  undertaken or expense incurred
that is primarily intended to result in the sale of Advisor Class shares,  which
services  may  include  but  are  not  limited  to,  (a) the  payment  of  sales
commission,   ongoing  commissions  and  other  payments  to  brokers,  dealers,
financial  institutions  or others who sell  Advisor  Class  shares  pursuant to
Selling  Agreements;  (b)  compensation to registered  representatives  or other
employees of  Distributor  who engage in or support  distribution  of the fund's
Advisor Class shares; (c) compensation to, and expenses  (including overhead and
telephone  expenses)  of,   Distributor;   (d)  the  printing  of  prospectuses,
statements  of  additional  information  and  reports  for other  than  existing
shareholders; (e) the preparation, printing and distribution of sales literature
and advertising  materials  provided to the fund's  shareholders and prospective
shareholders;  (f)  receiving  and  answering  correspondence  from  prospective
shareholders,  including  distributing  prospectuses,  statements  of additional
information, and shareholder


STATEMENT OF ADDITIONAL INFORMATION                                        15


reports;  (g) the providing of facilities to answer  questions from  prospective
investors  about fund shares;  (h) complying  with federal and state  securities
laws  pertaining  to the  sale  of  fund  shares;  (i)  assisting  investors  in
completing  application forms and selecting  dividend and other account options;
(j) the  providing  of  other  reasonable  assistance  in  connection  with  the
distribution of fund shares; (k) the organizing and conducting of sales seminars
and  payments  in  the  form  of   transactional   compensation  or  promotional
incentives;  (l) profit on the foregoing;  (m) the payment of "service fees" for
the provision of personal,  continuing services to investors, as contemplated by
the  Rules of Fair  Practice  of the NASD and (n) such  other  distribution  and
services  activities  as the  manager  determines  may be paid  for by the  fund
pursuant to the terms of this Agreement and in accordance with Rule 12b-1 of the
Investment Company Act.

TRUSTEES AND OFFICERS

   
    The Trust's  activities  are overseen by a Board of Trustees,  including six
independent Trustees.  The individuals listed below whose names are marked by an
asterisk (*) are "interested persons" of the Trust (as defined in the Investment
Company Act) by virtue of, among other  considerations,  their  affiliation with
either  Trust;  the  Trust's  manager;   the  Trust's  agent  for  transfer  and
administrative  services,  American Century Services  Corporation  (ACS);  their
parent   corporation,   American   Century   Companies,   Inc.  (ACC)  or  ACC's
subsidiaries;  other funds advised by the manager or the Trust's distributor and
co-administrator, Funds Distributor, Inc., (FDI). Each Trustee listed below also
serves as a Trustee or Director of other funds advised by the manager.

    Unless otherwise noted, a date in parentheses indicates the date the Trustee
or officer began his or her service in a particular  capacity.  Mr. Paul and the
Trustees'  (with the exception of Mr. Lyons and Mr. Stowers III) address is 1665
Charleston Road, Mountain View,  California 94043. The address of Mr. Lyons, Mr.
Stowers III, Ms. Roepke, Mr. Zindel and Ms. Wade is American Century Tower, 4500
Main Street,  Kansas City, Missouri 64111. The address of Mr. Ingram, Mr. Kelley
and Ms. Nelson is 60 State Street, Suite 1300, Boston, Massachusetts 02109.
    

TRUSTEES

   
    ALBERT A. EISENSTAT,  independent  Trustee (1995);  date of birth,  July 20,
1930.  Mr.  Eisenstat is  currently  the general  partner of Discovery  Ventures
(1996),  a venture  capital firm. He is also an independent  Director of each of
Commercial  Metals Co. (1982),  Sungard Data Systems (1991) and Business Objects
S/A (1994).  Previously,  he served as  Executive  Vice  President  of Corporate
Development and Corporate Secretary of Apple Computer and served on its Board of
Directors (1985 to 1993).

    RONALD J. GILSON,  independent Trustee (1995); date of birth,  September 14,
1946. Mr. Gilson is Charles J. Meyers  Professor of Law and Business at Stanford
Law  School  (1979)  and Mark and Eva Stern  Professor  of Law and  Business  at
Columbia University School of Law (1992). He is counsel to Marron, Reid & Sheehy
(a San Francisco law firm, 1984).

    *WILLIAM M. LYONS,  Trustee  (1998);  date of birth,  October 22, 1955.  Mr.
Lyons is President and Chief Operating Officer of ACC;  Executive Vice President
and General Counsel of ACS and ACIS;  Assistant  Secretary of ACC; and Secretary
of ACS and ACIS.

    MYRON S. SCHOLES,  independent  Trustee (1985); date of birth, July 1, 1941.
Mr. Scholes was awarded the 1997 Nobel  Memorial Prize in Economic  Sciences for
his role in the  development of the  Black-Scholes  option  pricing  model.  Mr.
Scholes is a principal of Long-Term Capital  Management (1993). He is also Frank
E. Buck Professor of Finance at the Stanford  Graduate School of Business (1983)
and a Director of Dimensional  Fund Advisors (1982) and the Smith Breeden Family
of Funds  (1992).  From  August  1991 to June 1993,  Mr.  Scholes was a Managing
Director of Salomon Brothers Inc. (securities brokerage).

    KENNETH E. SCOTT,  independent Trustee (1985);  date of birth,  November 21,
1928.  Mr. Scott is Ralph M.  Parsons  Professor of Law and Business at Stanford
Law School (1972) and a Director of RCM Capital Funds, Inc. (1994).

    ISAAC STEIN,  independent Trustee (1992);  date of birth,  October 26, 1946.
Mr.  Stein is former  Chairman of the Board  (1990 to 1992) and Chief  Executive
Officer  (1991 to 1992) of  Esprit  de Corp.  (clothing  manufacturer).  He is a
member  of the  Board  of  Raychem  Corporation  (electrical  equipment,  1993),
President of Waverley Associates, Inc. (private investment firm,
    


16                                               AMERICAN CENTURY INVESTMENTS


   
1983), and a Director of ALZA Corporation (pharmaceuticals,  1987). He is also a
Trustee of Stanford  University  (1994) and Chairman of Stanford Health Services
(hospital, 1994).

    *JAMES E. STOWERS III,  Chairman of the Board of Trustees (1998) and Trustee
(1995); date of birth, March 1, 1959. Mr. Stowers III is Chief Executive Officer
and Director of ACC, ACS and ACIS.

    JEANNE D. WOHLERS, independent Trustee (1985); date of birth, April 3, 1945.
Ms.  Wohlers is a private  investor and an  independent  Director and Partner of
Windy Hill Productions,  LP. Previously,  she served as Vice President and Chief
Financial Officer of Sybase, Inc. (software company, 1988 to 1992).
    

OFFICERS

   
    *RICHARD W. INGRAM, President (1998). Mr. Ingram is Executive Vice President
and Director of Client Services and Treasury Administration,  Funds Distributor,
Inc.  (FDI).  Mr.  Ingram  joined FDI in 1995.  Prior to joining FDI, Mr. Ingram
served as Vice  President and Division  Manager of First Data Investor  Services
Group,  Inc.  (from  March  1994  to  November  1995)  and  before  that as Vice
President,  Assistant  Treasurer  and Tax  Director-Mutual  Funds of The  Boston
Company, Inc. (from 1989 to 1994).
    

    *DOUGLAS A. PAUL,  Secretary  (1988),  Vice  President  (1990),  and General
Counsel (1990). Mr. Paul is Vice President and Associate General Counsel of ACS

   
    *MARYANNE  ROEPKE,  CPA,  Treasurer  (1995) and Vice President  (1998).  Ms.
Roepke is Vice President and Assistant Treasurer of ACS.

    *CHRISTOPHER J. KELLEY,  Vice President (1998). Mr. Kelley is Vice President
and Associate  General  Counsel of FDI. Mr. Kelley joined FDI in 1996.  Prior to
joining FDI, Mr. Kelley  served as Assistant  Counsel at Forum  Financial  Group
(from  April 1994 to July  1996) and before  that as a  compliance  officer  for
Putnam Investments (from 1992 to 1994).

    *MARY A. NELSON,  Vice  President  (1998).  Ms. Nelson is Vice President and
Manager of Treasury Services and Administration of FDI. Ms. Nelson joined FDI in
1995.  Prior to joining FDI, Ms. Nelson served as Assistant  Vice  President and
Client Manager for The Boston Company, Inc. (from 1989 to 1994).

    *PATRICK A. LOOBY, Vice President and Assistant  Secretary (1998). Mr. Looby
is Vice President and Associate General Counsel of ACS.

    *JON ZINDEL, Tax Officer (1997). Mr. Zindel has been Director of Taxation of
ACS since 1996.  Prior to joining ACS, he was Tax Manager,  Price Waterhouse LLP
(1989).

    *C. JEAN WADE, Controller, (1996). Ms. Wade joined ACS in 1991.

    As of April 5, 1998, the Trustees and officers,  as a group, owned less than
1% of the fund's outstanding shares.

    The table below  summarizes the  compensation  that the Trustees of the fund
received for the fund's  fiscal year ended  December  31,  1997,  as well as the
compensation  received for serving as Director or Trustee of other funds advised
by the manager.
    


<TABLE>
<CAPTION>
   
TRUSTEE COMPENSATION FOR THE FISCAL YEAR ENDED DECEMBER 31, 1997

                            Aggregate         Pension or Retirement           Estimated            Total Compensation
   Name of                Compensation       Benefits Accrued As Part      Annual Benefits      From the American Century
  Trustee*               From the Fund           of Fund Expenses          Upon Retirement          Family of Funds**
- -------------------------------------------------------------------------------------------------------------------------------
<S>                          <C>                <C>                       <C>                            <C>    
Albert A. Eisenstat          $9,022               Not Applicable           Not Applicable                $69,250
Ronald J. Gilson             $9,105               Not Applicable           Not Applicable                $74,000
Myron S. Scholes             $9,010               Not Applicable           Not Applicable                $68,250
Kenneth E. Scott             $8,930               Not Applicable           Not Applicable                $77,000
Ezra Solomon***                 $63               Not Applicable           Not Applicable                 $3,500
Isaac Stein                  $9,046               Not Applicable           Not Applicable                $69,500
Jeanne D. Wohlers            $9,095               Not Applicable           Not Applicable                $72,500
- -------------------------------------------------------------------------------------------------------------------------------

*   Interested Trustees receive no compensation for their services as such.

**  Includes  compensation paid by the fifteen investment company members of the
    American Century family of funds.

*** Retired December, 1996.
</TABLE>
    


STATEMENT OF ADDITIONAL INFORMATION                                        17


MANAGEMENT

    The fund has an  investment  management  agreement  with the  manager  dated
August 1, 1997.  This agreement was approved by the  shareholders of the fund on
July 30, 1997.

    For the services  provided to the fund,  the manager  receives a monthly fee
based on a percentage of the average net assets of the fund.  The annual rate at
which this fee is assessed is determined monthly in a two-step process: First, a
fee rate schedule is applied to the assets of all of the funds of its investment
category  managed by the manager  (the  "Investment  Category  Fee").  The three
investment  categories  are Money  Market  Funds,  Bond Funds and Equity  Funds.
Second,  a  separate  fee rate  schedule  is applied to the assets of all of the
funds managed by the manager (the "Complex  Fee").  The Investment  Category Fee
and the  Complex Fee are then added to  determine  the  unified  management  fee
payable by the fund to the manager.

    The  schedule  by which the  Investment  Category  Fee is  determined  is as
follows:

Category Assets                                                 Fee Rate
- --------------------------------------------------------------------------------
First $1 billion                                                0.6100%
Next $1 billion                                                 0.5580%
Next $3 billion                                                 0.5280%
Next $5 billion                                                 0.5080%
Next $15 billion                                                0.4950%
Next $25 billion                                                0.4930%
Thereafter                                                      0.4925%
- --------------------------------------------------------------------------------

    The Complex Fee Schedule is as follows:

Complex Assets                                                  Fee Rate
- --------------------------------------------------------------------------------
First $2.5 billion                                              0.3100%
Next $7.5 billion                                               0.3000%
Next $15.0 billion                                              0.2985%
Next $25.0 billion                                              0.2970%
Next $50.0 billion                                              0.2960%
Next $100.0 billion                                             0.2950%
Next $100.0 billion                                             0.2940%
Next $200.0 billion                                             0.2930%
Next $250.0 billion                                             0.2920%
Next $500.0 billion                                             0.2910%
Thereafter                                                      0.2900%
- --------------------------------------------------------------------------------

   
    The Complex Fee schedule  for the Advisor  Class is lower by 0.2500% at each
graduated  step.  For example,  if the Investor Class Complex Fee is 0.3000% for
the first $2 billion,  the Advisor Class Complex Fee is 0.0500%  (0.3000%  minus
0.2500%) for the first $2 billion.
    

    On the first  business day of each month,  the fund pays a management fee to
the  manager  for the  previous  month at the  specified  rate.  The fee for the
previous month is calculated by  multiplying  the applicable fee for the fund by
the  aggregate  average  daily closing value of the fund's net assets during the
previous  month by a fraction,  the  numerator of which is the number of days in
the previous month and the denominator of which is 365 (366 in leap years).

    The management  agreement  shall continue in effect until the earlier of the
expiration  of two  years  from the date of its  execution  or until  the  first
meeting of  shareholders  following such execution and for as long thereafter as
its  continuance  is  specifically  approved at least annually by (1) the fund's
Board of Trustees, or by the vote of a majority of outstanding votes (as defined
in the Investment Company Act) and (2) by the vote of a majority of the Trustees
of the fund who are not parties to the  agreement or  interested  persons of the
manager,  cast in person at a meeting  called for the  purpose of voting on such
approval.

    The  management  agreement  provides  that it may be  terminated at any time
without payment of any penalty by the fund's Board of Trustees,  or by a vote of
a  majority  of the  fund's  shareholders,  on 60 days'  written  notice  to the
manager, and that it shall be automatically terminated if it is assigned.

    The  management  agreement  provides that the manager shall not be liable to
the fund or its  shareholders for anything other than willful  misfeasance,  bad
faith, gross negligence or reckless disregard of its obligations and duties.

    The  management  agreement  also provides that the manager and its officers,
Trustees and employees may engage in other  business,  devote time and attention
to any other  business  whether of a similar or  dissimilar  nature,  and render
services to others.

    Certain  investments  may be  appropriate  for the fund  and also for  other
clients advised by the manager. Investment decisions for the fund and other


18                                            AMERICAN CENTURY INVESTMENTS


clients are made with a view to achieving their respective investment objectives
after  consideration of such factors as their current holdings,  availability of
cash for investment,  and the size of their investment  generally.  A particular
security  may be bought or sold for only one client or series,  or in  different
amounts  and at  different  times for more than one but less than all clients or
series. In addition, purchases or sales of the same security may be made for two
or more clients or series on the same date. Such  transactions will be allocated
among  clients in a manner  believed by the manager to be equitable to each.  In
some cases this procedure could have an adverse effect on the price or amount of
the securities purchased or sold by the fund.

    The manager may aggregate purchase and sale orders of the fund with purchase
and sale  orders  of its  other  clients  when the  manager  believes  that such
aggregation  provides  the best  execution  for the fund.  The  fund's  Board of
Trustees has approved the policy of the manager with respect to the  aggregation
of portfolio  transactions.  Where portfolio  transactions have been aggregated,
the fund  participates  at the average share price for all  transactions in that
security on a given day and share  transaction  costs on a pro rata  basis.  The
manager will not aggregate portfolio transactions of the fund unless it believes
such aggregation is consistent with its duty to seek best execution on behalf of
the fund and the terms of the  management  agreement.  The  manager  receives no
additional compensation or remuneration as a result of such aggregation.

    In addition to managing  the fund,  the manager  also acts as an  investment
advisor to 12 institutional  accounts and to the following registered investment
companies:  American Century Mutual Funds,  Inc.,  American Century World Mutual
Funds, Inc., American Century Premium Reserves,  Inc., American Century Variable
Portfolios,  Inc., American Century Capital  Portfolios,  Inc., American Century
Strategic Asset Allocations,  Inc.,  American Century Municipal Trust,  American
Century  Government Income Trust,  American Century  Investment Trust,  American
Century  Target  Maturities  Trust,  American  Century  California  Tax-Free and
Municipal Funds and American Century Quantitative Equity Funds.

    Prior to  August  1,  1997,  Benham  Management  Corporation  served  as the
investment  advisor to the fund.  Benham  Management  Corporation  is,  like the
manager, wholly-owned by ACC.

   
    For the period ended July 31, 1997 and for the fiscal  years ended  December
31, 1996 and 1995, the fund paid investment advisory fees as listed in the table
below.

                                                Investment Advisory Fees
- --------------------------------------------------------------------------------
    1997                                               $1,091,090
    1996                                               $1,060,306
    1995                                               $1,017,677
- --------------------------------------------------------------------------------

    The fund paid  management  fees of $641,176 for the period August 1, 1997 to
December 31, 1997.
    

    The investment  management  agreement provides that the manager may delegate
certain responsibilities under the agreement to a subadvisor.  Currently,  JPMIM
serves as  subadvisor  to the fund under a  subadvisory  agreement  between  the
manager and JPMIM dated  August 1, 1997,  that was approved by  shareholders  on
July 30,  1997.  This  superseded  subadvisory  agreements  dated  June 1, 1995,
December 31, 1991, and June 1, 1994. The subadvisory  agreement continues for an
initial   period  of  two  years  and  thereafter  so  long  as  continuance  is
specifically  approved  by vote of a majority of the fund's  outstanding  voting
securities or by vote of a majority of the fund's Trustees, including a majority
of those  Trustees  who are  neither  parties to the  agreement  nor  interested
persons of any such party, cast in person at a meeting called for the purpose of
voting on such  approval.  The  subadvisory  agreement is subject to termination
without  penalty  on 60  days'  written  notice  by the  manager,  the  Board of
Trustees,  or a majority of the fund's  outstanding shares or 12 months' written
notice  by  JPMIM  and  will  terminate  automatically  in the  event of (i) its
assignment or (ii) termination of the investment  advisory agreement between the
fund and the manager.

    The subadvisory agreement provides that JPMIM will make investment decisions
for the fund in accordance with the fund's investment objective,  policies,  and
restrictions, and whatever additional written guidelines it may receive from the
manager from time to time. For these services, the manager pays JPMIM


STATEMENT OF ADDITIONAL INFORMATION                                          19


a monthly fee at an annual rate of .20% of the fund's  average  daily net assets
up to $200  million;  and .15% of average  daily net assets  over $200  million.
Under the 1991 subadvisory agreement, the manager paid JPMIM a monthly fee at an
annual rate of .25% of average daily net assets up to $200 million,  and .05% of
average daily net assets in excess of $200 million, with a minimum annual fee of
$250,000.

   
    For the fiscal years ended  December 31,  1997,  1996 and 1995,  the manager
paid JPMIM subadvisory fees as listed in the following table:

                                                  JPMIM Subadvisory Fees
- --------------------------------------------------------------------------------
    1997                                                 $315,813
    1996                                                 $470,287
    1995                                                 $434,795
- --------------------------------------------------------------------------------
    

TRANSFER AND ADMINISTRATIVE SERVICES

    American  Century  Services  Corporation,  4500 Main  Street,  Kansas  City,
Missouri  64111,  acts as transfer agent and dividend paying agent for the fund.
It provides physical  facilities,  including  computer hardware and software and
personnel, for the day-to-day administration of the fund and of the manager. The
manager pays American Century Services Corporation for such services.

    Prior to August 1, 1997, the fund paid American Century Services Corporation
directly for its services as transfer agent and administrative services agent.

   
    For the period ended July 31, 1997 and the fiscal  years ended  December 31,
1996, and 1995, the fees paid for administrative services and for transfer agent
services are listed in the following table:

                     Administrative                         Transfer Agent
                        Services                               Services
- --------------------------------------------------------------------------------
1997                    $120,327                               $134,632
1996                    $263,533                               $239,896
1995                    $264,019                               $222,006
- --------------------------------------------------------------------------------
    

DISTRIBUTION OF FUND SHARES

   
    The fund's shares are distributed by FDI (the  "Distributor"),  a registered
broker-dealer.  The manager pays all expenses for promoting and distributing the
fund's  shares.  The fund  does  not pay any  commissions  or other  fees to the
Distributor  or to any  other  broker-dealers  or  financial  intermediaries  in
connection with the distribution of fund shares.
    

ADDITIONAL PURCHASE AND REDEMPTION INFORMATION

    The fund's shares are  continuously  offered at NAV. Share  certificates are
issued  (without  charge) only when requested in writing.  Certificates  are not
issued for fractional shares. Dividend and voting rights are not affected by the
issuance of certificates.

   
    American  Century may reject or limit the amount of an investment to prevent
any one shareholder or affiliated group from controlling the Trust or one of its
series; to avoid jeopardizing a series' tax status; or whenever, in management's
opinion,  such  rejection  is in the Trust's or a series' best  interest.  As of
April 5, 1998,  Charles  Schwab & Co., 101  Montgomery  Street,  San  Francisco,
California  94104,  was the record holder of 26.7% of the outstanding  shares of
the fund with 3,654,937  shares.  As of that date, no other  shareholder was the
record  holder or  beneficial  owner of 5% or more of the  fund's  total  shares
outstanding.
    

    ACS charges  neither fees nor  commissions  on the purchase and sale of fund
shares.  However,  ACS may  charge  fees for  special  services  requested  by a
shareholder or necessitated by acts or omissions of a shareholder.  For example,
ACS may charge a fee for processing dishonored investment checks or stop-payment
requests. See the Investor Services Guide for more information.

   
FINANCIAL STATEMENTS

The financial  statements of the funds,  including the  Statements of Assets and
Liabilities  and the Statements of Operations for the fiscal year ended December
31, 1997, and the Statements of Changes in Net Assets for the fiscal years ended
December 31, 1996 and 1997, are included in the Annual Reports to  shareholders,
for the fiscal  year  ended  December  31,  1997.  The  report on the  financial
highlights  for the fiscal years 1993,  1994,  1995 and 1996 are included in the
Annual Reports to shareholders for the fiscal year ended December 31, 1996. Each
such Annual Report is incorporated  herein by reference.  You may receive copies
of the reports  without  charge upon request to American  Century at the address
and phone number shown on the cover of this Statement of Additional Information.
    


20                                             AMERICAN CENTURY INVESTMENTS


OTHER INFORMATION

    For further  information,  please refer to the  registration  statement  and
exhibits on file with the SEC in Washington,  DC. These  documents are available
upon payment of a  reproduction  fee.  Statements in the  Prospectus and in this
Statement  of  Additional  Information  concerning  the contents of contracts or
other  documents,  copies  of which are filed as  exhibits  to the  registration
statement, are qualified by reference to such contracts or documents.

SECURITIES RATINGS

    Securities  rating  descriptions  provided  under this heading are excerpted
from  publications  of Moody's  Investors  Service,  Inc.  and Standard & Poor's
Corporation.

   
DESCRIPTION OF MOODY'S INVESTORS SERVICE, INC.'S  BOND RATINGS:
    

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

    A: Bonds that are rated "A" possess many favorable investment attributes and
are to be considered as upper medium-grade obligations.  Factors giving security
to principal and interest are considered  adequate,  but elements may be present
that suggest a susceptibility to impairment sometime in the future.

    Baa:  Bonds that are rated "Baa" are  considered  medium-grade  obligations,
i.e., they are neither highly  protected nor poorly secured.  Interest  payments
and principal  security appear adequate for the present,  but certain protective
elements may be lacking or may be  characteristically  unreliable over any great
length of time. Such bonds lack outstanding  investment  characteristics and, in
fact, have speculative characteristics as well.

    Ba: Bonds that are rated "Ba" are judged to have speculative elements; their
future cannot be considered  as well assured.  Often the  protection of interest
and  principal  payments may be very  moderate and thereby not well  safeguarded
during  both  good  and  bad  times  in  the  future.  Uncertainty  of  position
characterizes bonds in this class.

    B: Bonds that are rated "B" generally  lack  characteristics  of a desirable
investment.  Assurance of interest and principal  payments or of  maintenance of
other terms of the contract over any long period of time may be limited.

    Caa: Bonds that are rated "Caa" are of poor standing.  Such issues may be in
default, or there may be elements of danger present with respect to principal or
interest.

    Ca: Bonds that are rated "Ca" represent  obligations that are speculative to
a  high  degree.  Such  issues  are  often  in  default  or  have  other  marked
shortcomings.

    C: Bonds that are rated "C" are the lowest-rated  class of bonds, and issues
so rated can be regarded as having  extremely  poor  prospects of ever attaining
any real investment standing.

    Note:  Moody's may apply the numerical  modifier "1" for municipally  backed
bonds and modifiers "1," "2," and "3" for corporate-backed  municipal bonds. The
modifier "1" indicates  that the security 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 issue  ranks in the lower end of its  generic
rating category.

   
DESCRIPTION OF STANDARD & POOR'S CORPORATION'S RATINGS FOR BONDS:
    

INVESTMENT GRADE

    AAA: Debt rated "AAA" has the highest rating  assigned by Standard & Poor's.
Capacity to pay interest and repay principal is extremely strong.

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


STATEMENT OF ADDITIONAL INFORMATION                                       21


    A: Debt rated "A" has a strong capacity to pay interest and repay principal,
although it is somewhat more  susceptible  to the adverse  effects of changes in
circumstances and economic conditions than debt in higher-rated categories.

    BBB:  Debt rated "BBB" is  regarded  as having an  adequate  capacity to pay
interest and repay principal.  Whereas it normally exhibits adequate  protection
parameters,  adverse  economic  conditions  or changing  circumstances  are more
likely to lead to a weakened  capacity to pay interest and repay  principal  for
debt in this category than in higher-rated categories.

SPECULATIVE

    BB, B,  CCC,  CC:  Debt  rated in these  categories  is  regarded  as having
predominantly  speculative  characteristics  with  respect  to  capacity  to pay
interest and repay principal.  While such debt will likely have some quality and
protective characteristics, these are outweighed by large uncertainties or major
risk exposures to adverse conditions.

    BB: Debt rated "BB" has less near-term  vulnerability  to default than other
speculative issues. However, it faces major ongoing uncertainties or exposure to
adverse  business,   financial,  or  economic  conditions  that  could  lead  to
inadequate  capacity to meet timely  interest and principal  payments.  The "BB"
rating  category  is also  used for debt  subordinated  to  senior  debt that is
assigned an actual or implied "BBB-" rating.

    B: Debt rated "B" has a greater  vulnerability  to default but currently has
the  capacity  to meet  interest  payments  and  principal  repayments.  Adverse
business,  financial,  or economic  conditions  will likely  impair  capacity or
willingness to pay interest and repay principal. The "B" rating category is also
used for debt  subordinated to senior debt that is assigned an actual or implied
"BB" or "BB-" rating.

    CCC: Debt rated "CCC" has a currently identifiable  vulnerability to default
and is dependent upon favorable business,  financial, and economic conditions to
meet timely  payment of interest  and  repayment of  principal.  In the event of
adverse business,  financial,  or economic conditions,  it is not likely to have
the capacity to pay interest and repay  principal.  The "CCC" rating category is
also used for debt  subordinated  to senior  debt that is  assigned an actual or
implied "B" or "B-" rating.

    CC: The rating "CC" typically is applied to debt subordinated to senior debt
that is assigned an actual or implied "CCC" debt rating.

    C: The "C" rating is typically  applied to debt  subordinated to senior debt
that is assigned an actual or implied "CCC-" debt rating.  The "C" rating may be
used to cover a situation where a bankruptcy  petition has been filed,  but debt
service payments are continued.

    CI: The "CI"  rating is  reserved  for income  bonds on which no interest is
being paid.

    D: Debt rated "D" is in default, and payment of interest and/or repayment of
principal is in arrears.

    PLUS (+) OR MINUS (-): The ratings from "AA" to "CCC" may be modified by the
addition  of a plus or minus  sign to show  relative  standing  within the major
rating categories.
       


22                                               AMERICAN CENTURY INVESTMENTS


P.O. BOX 419200
KANSAS CITY, MISSOURI
64141-6200

INVESTOR SERVICES:
1-800-345-2021 OR 816-531-5575

AUTOMATED INFORMATION LINE:
1-800-345-8765

TELECOMMUNICATIONS DEVICE FOR THE DEAF:
1-800-634-4113 OR 816-444-3485

FAX: 816-340-7962

   
www.americancentury.com
    

                        [american century logo (reg.sm)]
                                    American
                                Century(reg.tm)

   
9805           [recycled logo]
SH-BKT-11969      Recycled
<PAGE>
    
AMERICAN CENTURY INTERNATIONAL BOND FUNDS


1933 Act Post-Effective Amendment No. 11
1940 Act Amendment No. 12
- --------------------------------------------------------------------------------

PART C   OTHER INFORMATION

Item 24. Financial Statements and Exhibits

(a)      FINANCIAL STATEMENTS. Audited financial statements for American Century
         International  Bond Funds for the fiscal year ended  December 31, 1997,
         are filed herein as included in the Statement of Additional Information
         by reference to the Annual  Report  dated  December 31, 1997,  filed on
         February 24, 1998 (Accession # 0000880268-98-000004).

(b)      EXHIBITS.

        (1) (a)Amended and Restated Declaration of Trust, dated May 31, 1995, is
            incorporated  herein by  reference  to  Exhibit 1 of  Post-Effective
            Amendment   No.  7  filed   on   April   22,   1996   (Accession   #
            0000880268-96-000010).

            (b) Amendment to the  Declaration of Trust dated October 21, 1996 is
            incorporated  herein by  reference  to  Exhibit 1 of  Post-Effective
            Amendment No. 9 filed April 30, 1997 (Accession # 880268-97-000006).

        (2) Amended and  Restated  Bylaws  dated March 9, 1998 are  incorporated
            herein by reference to Exhibit 2 of Post-Effective  Amendment No. 23
            to the Registration  Statement of American Century  Municipal Trust,
            filed on March 26, 1998 (Accession # 0000746458-98-000007).

        (3) Not Applicable.

        (4) Specimen copy of American Century - Benham International Bond Fund's
            share  certificate is incorporated  herein by reference to Exhibit 4
            of the Trust's Registration Statement filed on October 16, 1991.

        (5) (a) Investor Class Investment  Management Agreement between American
            Century  International  Bond Funds and American  Century  Investment
            Management,  Inc.,  dated August 1, 1997, is incorporated  herein by
            reference  to Exhibit 5 of  Post-Effective  Amendment  No. 33 to the
            Registration  Statement of American Century Government Income Trust,
            filed July 31, 1997 (Accession #773674-97-000014).

            (a)(1)  Amendment  dated  March  31,  1998  to  the  Investor  Class
            Investment    Management    Agreement   between   American   Century
            International Bond Funds and American Century Investment Management,
            Inc.,  dated August 1, 1997, is incorporated  herein by reference to
            Exhibit 5 of  Post-Effective  Amendment  No. 23 to the  Registration
            Statement of American Century  Municipal  Trust,  filed on March 26,
            1998 (Accession #0000746458-98-000007).

            (b) Advisor Class Investment  Management  Agreement between American
            Century  International  Bond Funds and American  Century  Investment
            Management,  Inc.,  dated August 1, 1997, is incorporated  herein by
            reference  to Exhibit 5 of  Post-Effective  Amendment  No. 27 to the
            Registration  Statement of American Century Target Maturities Trust,
            filed August 29, 1997 (Accession # 757928-97-000004).

            (c)  Investment   Sub-Advisory   Agreement  among  American  Century
            International Bond Funds,  American Century  Investment  Management,
            Inc., and J.P. Morgan  Investment  Management  Inc., dated August 1,
            1997  is  incorporated  herein  by  reference  to  Exhibit  5(c)  of
            Post-Effective   Amendment  No.  10  filed  on  September  30,  1997
            (Accession # 0000880268-97-000011).

        (6) Distribution  Agreement between American Century  International Bond
            Funds and Funds  Distributor,  Inc.,  dated  January  15,  1998 , is
            incorporated  herein by  reference  to  Exhibit 6 of  Post-Effective
            Amendment No. 23 to the  Registration  Statement of American Century
            Municipal     Trust,     filed    March    26,    1998    (Accession
            #0000746458-98-000007).

        (7) Not Applicable.

        (8) (a) Custodian Agreement between American Century  International Bond
            Funds and State Street Bank and Trust  Company dated August 10, 1993
            is   incorporated   herein  by   reference   to   Exhibit   8(a)  of
            Post-Effective  Amendment No. 7 filed on April 22, 1996 (Accession #
            0000880268-96-000010).

            (b)  Amendment  No.  1  dated  December  1,  1994  to the  Custodian
            Agreement  between  American  Century  International  Bond Funds and
            State  Street  Bank and  Trust  Company  dated  August  10,  1993 is
            incorporated  herein by reference to Exhibit 8(b) of  Post-Effective
            Amendment   No.  7  filed   on   April   22,   1996   (Accession   #
            0000880268-96-000010).

            (c) Amendment  No. 2 dated March 4, 1996 to the Custodian  Agreement
            between American Century  International  Bond Funds and State Street
            Bank and Trust Company dated August 10, 1993 is incorporated  herein
            by reference to Exhibit 8(c) of Post-Effective Amendment No. 7 filed
            on April 22, 1996 (Accession # 0000880268-96-000010).

        (9) Transfer Agency Agreement  between  American  Century  International
            Bond Funds and American  Century  Services  Corporation  dated as of
            August 1, 1997, is incorporated  herein by reference to Exhibit 9 of
            Post-Effective Amendment No. 33 to the Registration Statement of the
            American  Century  Government  Income  Trust  filed on July 31, 1997
            (Accession # 773674-97-000014).

        (10)Opinion and consent of counsel as to the legality of the  securities
            being registered, dated February 24, 1998, is incorporated herein by
            reference to Rule 24f-2 Notice filed on February 24, 1998 (Accession
            # 880268-98-000003).

        (11)(a)  Consent  of  Coopers &  Lybrand,  independent  accountants,  is
            included herein.

            (b)  Consent of KPMG Peat  Marwick  LLP,  independent  auditors,  is
            included herein.

        (12)Not Applicable.

        (13)Letter of Understanding  relating to initial capital, dated December
            20,  1991,  is  incorporated  herein by  reference  to Exhibit 13 to
            Pre-Effective Amendment No. 1 filed on December 26, 1991.

        (14)(a)American  Century Individual  Retirement Account Plan,  including
            all instructions and other relevant documents,  dated February 1992,
            is   incorporated   herein  by   reference   to  Exhibit   14(a)  to
            Post-Effective Amendment No. 2 filed on April 30, 1993.

            (b) American  Century  Pension/Profit  Sharing  Plan,  including all
            instructions and other relevant  documents,  dated February 1992, is
            incorporated  herein by reference to Exhibit 14(b) to Post-Effective
            Amendment No. 2 filed on April 30, 1993.

        (15)Master  Distribution  and  Shareholder  Services  Plan  of  American
            Century Government Income Trust, American Century International Bond
            Fund,  American Century Target Maturities Trust and American Century
            Quantitative  Equity Funds  (Advisor  Class) dated August 1, 1997 is
            included herein.

        (16)Schedule for computation of each performance  quotation  provided in
            response to Item 22 is included herein.

        (17)Power of Attorney dated January 15, 1998 is included herein.

        (18)Multiple  Class Plan of American  Century  California  Tax-Free  and
            Municipal Funds,  American Century Government Income Trust, American
            Century International Bond Funds, American Century Investment Trust,
            American Century Municipal Trust, American Century Target Maturities
            Trust and American Century Quantitative Equity Funds dated August 1,
            1997 is included herein.


Item 25. Persons Controlled by or Under Common Control with Registrant.

    Not Applicable.


Item 26. Number of Holders of Securities.

    As of February 28, 1998,  American Century - Benham  International Bond Fund
    (the sole operating series of American Century International Bond Funds) had
    6,386 shareholders of record.


Item 27. Indemnification.

    As  stated  in  Article  VII,   Section  3  of  the  Declaration  of  Trust,
    incorporated herein by reference to Exhibit 1 to the Registration Statement,
    "The  Trustees  shall  be  entitled  and  empowered  to the  fullest  extent
    permitted by law to purchase  insurance  for and to provide by resolution or
    in the Bylaws for  indemnification out of Trust assets for liability and for
    all expenses reasonably incurred or paid or expected to be paid by a Trustee
    or officer in  connection  with any claim,  action,  suit,  or proceeding in
    which he or she becomes  involved by virtue of his or her capacity or former
    capacity  with the Trust.  The  provisions,  including  any  exceptions  and
    limitations  concerning  indemnification,  may be set forth in detail in the
    Bylaws or in a resolution adopted by the Board of Trustees."

    Registrant  hereby  incorporates  by  reference,  as though set forth  fully
    herein,  Article VI of the  Registrant's  Bylaws,  amended on May 17,  1995,
    appearing  as  Exhibit  2(b) to  Post-Effective  Amendment  No.  6 filed  on
    February 29, 1996 (Accession # 0000880268-96-000007).


Item 28. Business and other Connections of Investment Advisor.

    American Century Investment Management, Inc., the investment manager to each
    of  the  Registrant's   Funds,  is  engaged  in  the  business  of  managing
    investments  for  deferred   compensation  plans  and  other   institutional
    investors.


Item 29. Principal Underwriters.

    (a)  Funds  Distributor,   Inc.  (the   "Distributor")   acts  as  principal
    underwriter for the following investment companies.

               American Century California Tax-Free and Municipal Funds
               American Century Capital Portfolios, Inc.
               American Century Government Income Trust
               American Century International Bond Funds
               American Century Investment Trust
               American Century Municipal Trust
               American Century Mutual Funds, Inc.
               American Century Premium Reserves, Inc.
               American Century Quantitative Equity Funds
               American Century Strategic Asset Allocations, Inc.
               American Century Target Maturities Trust
               American Century Variable Portfolios, Inc.
               American Century World Mutual Funds, Inc.
               BJB Investment Funds
               The Brinson Funds
               Dresdner RCM Capital Funds, Inc.
               Dresdner RCM Equity Funds, Inc.
               Harris Insight Funds Trust
               HT Insight Funds, Inc. d/b/a Harris Insight Funds
               J.P. Morgan Institutional Funds
               J.P. Morgan Funds
               The JPM Series Trust
               The JPM Series Trust II
               LaSalle Partners Funds, Inc.
               Monetta Fund, Inc.
               Monetta Trust
               The Montgomery Funds
               The Montgomery Funds II
               The Munder Framlington Funds Trust
               The Munder Funds Trust
               The Munder Funds, Inc.
               Orbitex Group of Funds
               St. Clair Funds, Inc.
               The Skyline Funds
               Waterhouse Investors Family of Funds, Inc.
               WEBS Index Fund, Inc.

               The  Distributor  is registered  with the Securities and Exchange
               Commission  as a  broker-dealer  and is a member of the  National
               Association of Securities Dealers.  The Distributor is located at
               60 State Street,  Suite 1300,  Boston,  Massachusetts  02109. The
               Distributor  is an  indirect  wholly-owned  subsidiary  of Boston
               Institutional  Group,  Inc.,  a  holding  company  all  of  whose
               outstanding shares are owned by key employees.

    (b)  The  following  is a list  of the  executive  officers,  directors  and
    partners of the Distributor:

<TABLE>
Name and Principal Business          Positions and Offices with          Positions and Offices with
Address*                             Underwriter                         Registrant

<S>                                 <C>                                 <C>
Marie E. Connolly                    Director, President and Chief       none
                                     Executive Officer

Richard W. Ingram                    Executive Vice President            President, Principal Executive
                                                                         and Principal Financial Officer

Donald R. Roberson                   Executive Vice President            none

William S. Nichols                   Executive Vice President            none

Michael S. Petrucelli                Senior Vice President               none

Joseph F. Tower, III                 Director, Senior Vice President,    none
                                     Treasurer and Chief Financial
                                     Officer

Paula R. David                       Senior Vice President               none

Allen B. Closser                     Senior Vice President               none

Bernard A. Whalen                    Senior Vice President               none

William J. Nutt                      Director                            none
- --------------------
* All addresses are 60 State Street, Suite 1300, Boston, Massachusetts 02109
</TABLE>

    (c) Not applicable.


Item 30. Location of Accounts and Records.

    American Century Investment  Management,  Inc., the Registrant and its agent
    for  transfer  and  administrative   services,   American  Century  Services
    Corporation,  maintain their principal office at 4500 Main St., Kansas City,
    MO  64111.   American  Century  Services   Corporation   maintains  physical
    possession of each account, book, or other document, and shareholder records
    as required by ss.31(a) of the 1940 Act and rules thereunder.


Item 31. Management Services.

    Not Applicable.


Item 32. Undertakings.

    Registrant  undertakes  to  furnish  each  person  to whom a  Prospectus  is
    delivered  with  a  copy  of  the  Registrant's   latest  annual  report  to
    shareholders, upon request and without charge.
<PAGE>
                                   SIGNATURES

Pursuant to the  requirements  of the  Securities Act of 1933 and the Investment
Company  Act of  1940,  the  Registrant  has  duly  caused  this  Post-Effective
Amendment No. 11/Amendment No. 12 to be signed on its behalf by the undersigned,
thereunto  duly  authorized,  in  the  City  of  Mountain  View,  and  State  of
California, on the 28th day of April, 1998. I hereby certify that this Amendment
meets the requirements for immediate effectiveness pursuant to Rule 485(b).

                          AMERICAN CENTURY INTERNATIONAL BOND FUNDS


                          By: /s/ Douglas A. Paul
                              Douglas A. Paul
                              Secretary, Vice President and General Counsel

Pursuant to the requirements of the Securities Act of 1933, this  Post-Effective
Amendment No. 11/Amendment No. 12 has been signed below by the following persons
in the capacities and on the dates indicated.
<TABLE>
<CAPTION>
                                                                         Date
<S>                                  <C>                                 <C>
*                                    President and                       April 28, 1998
- ---------------------------------    Chief Executive Officer
William M. Lyons

*                                    Trustee                             April 28, 1998
- ---------------------------------
Albert A. Eisenstat

*                                    Trustee                             April 28, 1998
- ---------------------------------
Ronald J. Gilson

*                                    Trustee                             April 28, 1998
- ---------------------------------
Myron S. Scholes

*                                    Trustee                             April 28, 1998
- ---------------------------------
Kenneth E. Scott

*                                    Trustee                             April 28, 1998
- ---------------------------------
Isaac Stein

*                                    Trustee, Chairman of the Board      April 28, 1998
- ---------------------------------
James E. Stowers III

*                                    Trustee                             April 28, 1998
- ---------------------------------
Jeanne D. Wohlers

*                                    Treasurer                           April 28, 1998
- ---------------------------------
Maryanne Roepke
</TABLE>

/s/ Douglas A. Paul
*by Douglas A. Paul, Attorney in Fact (pursuant to a Power of Attorney dated 
January 15, 1998).

EXHIBIT        DESCRIPTION

EX-99.B1       a)Amended and Restated  Declaration of Trust, dated May 31, 1995,
               is   incorporated   herein   by   reference   to   Exhibit  1  of
               Post-Effective Amendment No. 7 filed on April 22, 1996 (Accession
               # 0000880268-96-000010).

               b) Amendment to the  Declaration  of Trust dated October 21, 1996
               is   incorporated   herein   by   reference   to   Exhibit  1  of
               Post-Effective  Amendment No. 9 filed April 30, 1997 (Accession #
               880268-97-000006).

EX-99.B2       Amended and Restated Bylaws dated March 9, 1998 are  incorporated
               by reference to Exhibit 2(b) of  Post-Effective  Amendment No. 23
               to the  Registration  Statement  of  American  Century  Municipal
               Trust,     filed    on    March    26,    1998    (Accession    #
               0000746458-98-000007).

EX-99.B4       Specimen  copy of American  Century - Benham  International  Bond
               Fund's share  certificate is incorporated  herein by reference to
               Exhibit 4 of the Trust's Registration  Statement filed on October
               16, 1991.

EX-99.B5       a)  Investor  Class  Investment   Management   Agreement  between
               American  Century  International  Bond Funds and American Century
               Investment   Management,   Inc.,   dated   August  1,  1997,   is
               incorporated  herein by reference to Exhibit 5 of  Post-Effective
               Amendment  No.  33 to  the  Registration  Statement  of  American
               Century  Government Income Trust,  filed July 31, 1997 (Accession
               #773674-97-000014).

               a)(1)  Amendment  dated  March  31,  1998 to the  Investor  Class
               Investment   Management   Agreement   between   American  Century
               International   Bond  Funds  and  American   Century   Investment
               Management, Inc., dated August 1, 1997, is incorporated herein by
               reference to Exhibit 6 of Post-Effective  Amendment No. 23 to the
               Registration Statement of American Century Municipal Trust, filed
               on March 26, 1998 (Accession #0000746458-98-000007).

               b) Advisor Class Investment Management Agreement between American
               Century  International Bond Funds and American Century Investment
               Management, Inc., dated August 1, 1997, is incorporated herein by
               reference to Exhibit 5 of Post-Effective  Amendment No. 27 to the
               Registration  Statement  of American  Century  Target  Maturities
               Trust, filed August 29, 1997 (Accession # 757928-97-000004).

               c)  Investment  Sub-Advisory  Agreement  among  American  Century
               International Bond Funds, American Century Investment Management,
               Inc., and J.P. Morgan Investment Management Inc., dated August 1,
               1997 is  incorporated  herein by  reference  to  Exhibit  5(c) of
               Post-Effective  Amendment  No.  10 filed on  September  30,  1997
               (Accession # 0000880268-97-000011).

EX-99.B6       Distribution  Agreement  between American  Century  International
               Bond Funds and Funds Distributor,  Inc., dated January 15, 1998 ,
               is   incorporated   herein   by   reference   to   Exhibit  6  of
               Post-Effective  Amendment No. 23 to the Registration Statement of
               American Century Municipal Trust, filed March 26, 1998 (Accession
               #0000746458-98-000007).

EX-99.B8       a) Custodian  Agreement  between American  Century  International
               Bond Funds and State Street Bank and Trust  Company  dated August
               10, 1993 is  incorporated  herein by reference to Exhibit 8(a) of
               Post-Effective Amendment No. 7 filed on April 22, 1996 (Accession
               # 0000880268-96-000010).

               b)  Amendment  No.  1 dated  December  1,  1994 to the  Custodian
               Agreement between American Century  International  Bond Funds and
               State  Street  Bank and Trust  Company  dated  August 10, 1993 is
               incorporated   herein   by   reference   to   Exhibit   8(b)   of
               Post-Effective Amendment No. 7 filed on April 22, 1996 (Accession
               # 0000880268-96-000010).

               c) Amendment No. 2 dated March 4, 1996 to the Custodian Agreement
               between  American  Century  International  Bond  Funds  and State
               Street  Bank  and  Trust   Company   dated  August  10,  1993  is
               incorporated   herein   by   reference   to   Exhibit   8(c)   of
               Post-Effective Amendment No. 7 filed on April 22, 1996 (Accession
               # 0000880268-96-000010).

EX-99.B9       Transfer Agency Agreement between American Century  International
               Bond Funds and American Century Services  Corporation dated as of
               August 1, 1997, is incorporated  herein by reference to Exhibit 9
               of Post-Effective  Amendment No. 33 to the Registration Statement
               of the American Century Government Income Trust filed on July 31,
               1997 (Accession # 773674-97-000014).

EX-99.B10      Opinion  and  consent  of  counsel  as to  the  legality  of  the
               securities  being   registered,   dated  February  24,  1998,  is
               incorporated  herein by  reference  to Rule 24f-2 Notice filed on
               February 24, 1998 (Accession # 880268-98-000003).

EX-99.B11      a)  Consent of Coopers &  Lybrand,  independent  accountants,  is
               included herein.

               b) Consent of KPMG Peat Marwick  LLP,  independent  auditors,  is
               included herein.

EX-99.B13      Letter  of  Understanding  relating  to  initial  capital,  dated
               December 20, 1991, is incorporated herein by reference to Exhibit
               13 to Pre-Effective Amendment No. 1 filed on December 26, 1991.

EX-99.B14      a) American Century Individual Retirement Account Plan, including
               all  instructions  and other relevant  documents,  dated February
               1992,  is  incorporated  herein by reference to Exhibit  14(a) to
               Post-Effective Amendment No. 2 filed on April 30, 1993.

               b) American Century  Pension/Profit  Sharing Plan,  including all
               instructions and other relevant  documents,  dated February 1992,
               is   incorporated   herein  by  reference  to  Exhibit  14(b)  to
               Post-Effective Amendment No. 2 filed on April 30, 1993.

EX-99.B15      Master  Distribution  and  Shareholder  Services Plan of American
               Century Government Income Trust,  American Century  International
               Bond Fund,  American Century Target Maturities Trust and American
               Century Quantitative Equity Funds (Advisor Class) dated August 1,
               1997 is included herein.

EX-99.B16      Schedule for computation of each performance  quotation  provided
               in response to Item 22 is included herein.

EX-99.B17      Power of Attorney dated January 15, 1998 is included herein.

EX-99.B18      Multiple Class Plan of American Century  California  Tax-Free and
               Municipal  Funds,   American  Century  Government  Income  Trust,
               American  Century  International  Bond  Funds,  American  Century
               Investment  Trust,  American Century  Municipal  Trust,  American
               Century Target Maturities Trust and American Century Quantitative
               Equity Funds dated August 1, 1997 is included herein.

EX-27.1        Financial Data Schedule.

                       CONSENT OF INDEPENDENT ACCOUNTANTS


We consent to the incorporation by reference in  Post-Effective  Amendment No.11
to the Registration Statement of American Century-Benham International Bond Fund
(the sole fund comprising the American Century International Bond Funds) on Form
N-1A of our  report  dated  February  10,  1998 on our  audit  of the  financial
statements and financial highlights of the American Century-Benham International
Bond Fund, which report is included in the Annual Report to Shareholders for the
year  ended  December  31,  1997  which  is  incorporated  by  reference  in the
Post-Effective  Amendment to the Registration  Statement. We also consent to the
reference  in the  Statement  of  Additional  Information  to our Firm under the
caption "Independent Accountants."


                                                     /s/Coopers & Lybrand L.L.P.


Kansas City, Missouri

April 24, 1998

INDEPENDENT AUDITORS' CONSENT


The Board of Trustees
American Century International Bond Funds:


We consent to the use of our  report  dated  February  7, 1997  included  in the
registration statement.


/s/KPMG Peat Marwick LLP
KPMG Peat Marwick LLP

Kansas City, Missouri
April 24, 1998

                MASTER DISTRIBUTION AND SHAREHOLDER SERVICES PLAN

                    AMERICAN CENTURY GOVERNMENT INCOME TRUST
                    AMERICAN CENTURY INTERNATIONAL BOND FUND
                        AMERICAN CENTURY INVESTMENT TRUST
                    AMERICAN CENTURY TARGET MATURITIES TRUST
                   AMERICAN CENTURY QUANTITATIVE EQUITY FUNDS

                                  Advisor Class

Section 1.        Distribution Fees

a.       Distribution Fee. For purposes of paying costs and expenses incurred in
         providing  the services  set forth in Section 2 below,  the Funds shall
         pay the Manager a fee equal to 25 basis points (0.25%) per annum of the
         average  daily net assets of the shares of the Funds'  Advisor Class of
         shares (the "Distribution Fee").

b.       Shareholder  Services  Fees.  For purposes of paying costs and expenses
         incurred in providing  the  services set forth in Section 2 below,  the
         Funds shall pay the Manager a fee equal to 25 basis points  (0.25%) per
         annum of the  average  daily  net  assets of the  shares of the  Funds'
         Advisor Class of shares (the "Shareholder Services Fee").

c.       Applicability  to Additional  and Future  Funds.  If any of the Issuers
         desire  to add  additional,  currently-existing  funds  to the  Plan or
         establish  additional funds in the future, and the applicability of the
         Plan with  respect to such  existing  or new funds is  approved  in the
         manner set forth in Section 4 of this Plan, as well as by the then-sole
         shareholder  of the  Advisor  Class  shares  of such new  funds (to the
         extent  shareholder  approval of new funds is required by  then-current
         1940 Act  Rules),  this Plan may be amended  to  provide  that such new
         funds will  become  subject to this Plan and will pay the  Distribution
         Fee and the  Shareholder  Services  Fee set forth in Sections  1(a) and
         1(b) above, unless the Board specifies otherwise. After the adoption of
         this Plan by the Board with  respect to the Advisor  Class of shares of
         the  existing  or new  funds,  the term  "Funds"  under this Plan shall
         thereafter be deemed to include the existing or new funds.

d.       Calculation  and  Assessment.  Distribution  Fees  and the  Shareholder
         Services Fees under this Plan will be  calculated  and accrued daily by
         each  Fund  and  paid  monthly  to the  Distributor  or at  such  other
         intervals as the Issuers and the Distributor may agree.


Section 2.        Distribution Services

a.       The  amount  set forth in  Section  1(a) of this Plan shall be paid for
         services  in  connection  with any  activities  undertaken  or expenses
         incurred by the  Distributor  or its affiliates  primarily  intended to
         result in the sale of Advisor Class shares of the Funds, which services
         may  include  but  are  not  limited  to,  (A)  the  payment  of  sales
         commission, ongoing commissions and other payments to brokers, dealers,
         financial institutions or others who sell Advisor Class shares pursuant
         to Selling Agreements;  (B) compensation to registered  representatives
         or other employees of Distributor who engage in or support distribution
         of the Funds' Advisor Class shares;  (C)  compensation to, and expenses
         (including overhead and telephone  expenses) of,  Distributor;  (D) the
         printing of  prospectuses,  statements  of additional  information  and
         reports  for other than  existing  shareholders;  (E) the  preparation,
         printing and distribution of sales literature and advertising materials
         provided to the Funds' shareholders and prospective  shareholders;  (F)
         receiving and answering  correspondence from prospective  shareholders,
         including   distributing   prospectuses,   statements   of   additional
         information,  and shareholder  reports; (G) the providing of facilities
         to answer questions from prospective  investors about Fund shares;  (H)
         complying with federal and state securities laws pertaining to the sale
         of Fund shares; (I) assisting investors in completing application forms
         and selecting dividend and other account options;  (J) the providing of
         other reasonable assistance in connection with the distribution of Fund
         shares;  (K) the  organizing  and  conducting  of  sales  seminars  and
         payments  in the  form of  transactional  compensation  or  promotional
         incentives;  (L) profit on the  foregoing;  (M) the payment of "service
         fees",  as  contemplated  by the Rules of Fair Practice of the National
         Association  of Securities  Dealers;  Inc.  ("NASD") and (N) such other
         distribution  and services  activities as the Issuers  determine may be
         paid for by the Issuers  pursuant to the terms of this Agreement and in
         accordance with Rule 12b-1 of the 1940 Act.

b.       For  purposes  of the Plan,  "service  fees"  shall  mean  payments  in
         connection  with the  provision  of  personal,  continuing  services to
         investors in each Fund and/or the maintenance of shareholder  accounts,
         excluding  (i)  transfer  agent  and  subtransfer  agent  services  for
         beneficial  owners of a Fund's Advisor Class shares,  (ii)  aggregating
         and  processing   purchase  and  redemption  orders,   (iii)  providing
         beneficial  owners  with  account   statements,   processing   dividend
         payments,  (iv)  providing  subaccounting  services  for Advisor  Class
         shares held beneficially,  (v) forwarding shareholder communications to
         beneficial  owners,  and (vi)  receiving,  tabulating and  transmitting
         proxies executed by beneficial owners;  provided,  however, that if the
         NASD  adopts a  definition  of "service  fees" for  purposes of Section
         26(d) of the Rules of Fair  Practice of the NASD (or any  successor  to
         such rule) that differs  from the  definition  of "service  activities"
         hereunder,  or if the NASD  adopts a  related  definition  intended  to
         define the same  concept,  the  definition  of  "service  fees" in this
         Section shall be automatically  amended,  without further action of the
         parties,  to  conform  to such  NASD  definition.  Overhead  and  other
         expenses of Distributor  related to its service  activities,  including
         telephone  and other  communications  expenses,  may be included in the
         information regarding amounts expended for such activities.


Section 3.        Shareholder Services Defined

As manager of the Funds'  Advisor Class of shares,  the Manager may cause one of
its  affiliates  to  provide  shareholder  and  administrative  services  to the
shareholders of the Advisor Class shares of the Funds  ("Shareholder  Services")
or it may engage third  parties to do so. The payments  authorized  by this Plan
are  intended  to  reimburse  the  Manager  for  expenses  incurred by it or its
affiliates  as a result of these  arrangements.  Such  Shareholder  Services and
related expenses may include, but are not limited to, (A) receiving, aggregating
and processing purchase,  exchange and redemption request from beneficial owners
(including  contract  owners of  insurance  products  that  utilize the Funds as
underlying  investment  media) of Advisor  Class  shares and  placing  purchase,
exchange and redemption  orders with the funds' transfer  agency;  (B) providing
shareholders  with a service that invests the assets of their accounts in shares
pursuant to specific or  pre-authorized  instructions;  (C) processing  dividend
payments from a Fund on behalf of  shareholders  and assisting  shareholders  in
changing dividend options, account designations and addresses; (D) providing and
maintaining  elective services such as check writing and wire transfer services;
(E) acting as sole shareholder of record and nominee for beneficial  owners; (F)
maintaining account records for shareholders and/or other beneficial owners; (G)
issuing confirmations of transactions;  (H) providing subaccounting with respect
to shares  beneficially  owned by  customers of third  parties or providing  the
information  to a Fund as  necessary  for such  subaccounting;  (I) creating and
forwarding   shareholder   communications  from  the  Funds  (such  as  proxies,
shareholder reports,  annual and semi-annual  financial statements and dividend,
distribution and tax notices) to shareholders  and/or other  beneficial  owners;
and (J) providing other similar administrative and sub-transfer agency services.
Shareholder  Services do not include  those  activities  and  expenses  that are
primarily  intended  to result in the sale of  additional  shares of the Advisor
Class of the Funds.


Section 4.        Effectiveness

Upon receipt of approval by vote of both (a) the Board of  Trustees/Directors of
the Issuers, and (b) the Independent Trustees/Directors,  this Plan shall become
effective as of August 1, 1997.


Section 5.        Term

This Plan will  continue in effect until  December 31, 1998,  and will  continue
thereafter  in full force and effect for  successive  periods of up to one year,
provided  that each such  continuance  is  approved  in the manner  provided  in
Sections 3(b) and 3(c).


Section 6.        Reporting Requirements

The Manager shall administer this Plan in accordance with Rule 12b-1 of the 1940
Act.  The Manager  will  provide to each  Issuer's  Board,  and the  Independent
Trustees/Directors  will review and  approve,  in  exercise  of their  fiduciary
duties,  at least  quarterly,  a written  report of the  amounts  expended  with
respect to the Advisor  Class shares of each Fund by the Manager under this Plan
and such other  information  as may be  required  by the 1940 Act and Rule 12b-1
thereunder.


Section 7.        Termination

This Plan may be  terminated  without  penalty  at any time with  respect to the
Advisor Class shares of any Fund by vote of the Board of the Issuer of which the
Fund is a series, by votes of a majority of the Independent  Trustees/Directors,
or by vote of a majority of the outstanding  voting Advisor Class shares of that
Fund.  Termination  of the Plan with respect to the Advisor  Class shares of one
Fund will not affect the  continued  effectiveness  of this Plan with respect to
the Advisor Class shares of any other Fund.


Section 8.        Amendments to this Plan

This Plan may not be amended to increase materially the amount of compensation a
Fund is  authorized  to pay under  Section 1 hereof  unless  such  amendment  is
approved in the manner  provided for initial  approval in Sections 3(b) and 3(c)
hereof,  and such amendment is further approved by a majority of the outstanding
voting securities of the Advisor Class shares of the Fund, and no other material
amendment  to the Plan will be made unless  approved in the manner  provided for
approval and annual renewal in Section 4 hereof.

Section 9.        Recordkeeping

The Issuers will preserve copies of this Plan (including any amendments thereto)
and any related agreements and all reports made pursuant to Section 5 hereof for
a period of not less than six years  from the date of this  Plan,  the first two
years in an easily accessible place.

         IN WITNESS WHEREOF, the Issuers have executed this Distribution Plan as
of August 1, 1997.

                                      AMERICAN CENTURY GOVERNMENT INCOME TRUST
                                      AMERICAN CENTURY INTERNATIONAL BOND FUND
                                      AMERICAN CENTURY INVESTMENT TRUST
                                      AMERICAN CENTURY TARGET MATURITIES TRUST
                                      AMERICAN CENTURY QUANTITATIVE EQUITY FUNDS
Attest:


/s/William M. Lyons                   /s/James M. Benham
William M. Lyons                      James M. Benham
Executive Vice President              Chairman
<PAGE>
                                   SCHEDULE A

                      Series Offering Advisor Class Shares

- ----------------------------------------------------- --------------------------
Series                                                   Date Plan Adopted
- ----------------------------------------------------- --------------------------
AMERICAN CENTURY GOVERNMENT INCOME TRUST
      Benham Intermediate-Term Treasury Fund              August 1, 1997
      Benham Short-Term Treasury Fund                     August 1, 1997

AMERICAN CENTURY INTERNATIONAL BOND FUNDS
      Benham European Government Bond Fund                August 1, 1997

AMERICAN CENTURY INVESTMENT TRUST
      Benham Prime Money Market Fund                       March 9, 1998

AMERICAN CENTURY TARGET MATURITIES TRUST
      Benham Target Maturities Trust:  2000               August 1, 1997
      Benham Target Maturities Trust:  2005               August 1, 1997
      Benham Target Maturities Trust:  2010               August 1, 1997
      Benham Target Maturities Trust:  2015               August 1, 1997
      Benham Target Maturities Trust:  2020               August 1, 1997
      Benham Target Maturities Trust:  2025               August 1, 1997

AMERICAN CENTURY QUANTITATIVE EQUITY FUNDS
      American Century Equity Growth Fund                 August 1, 1997
      American Century Income & Growth Fund               August 1, 1997
      American Century Global Gold Fund                   August 1, 1997
      American Century Global Natural Resources Fund      August 1, 1997
      American Century Utilities Fund                     August 1, 1997
- ----------------------------------------------------- --------------------------

                         BENHAM INTERNATIONAL BOND FUND
                           AVERAGE ANNUAL TOTAL RETURN
                                    12/31/97

                              Formula: T=(ERV/P)^1/N -1

             P    =    A hypothetical initial payment of $1,000
             ERV  =    Ending redeemable value of a hypothetical 
                         $1,000 payment made at the beginning of the period
             N    =    Number of years
             T    =    Average annual total return

                              P              ERV             N             T
                       ---------------------------------------------------------

One Year                $1,000.00         $941.20        1.000000       -5.88%

Five Year               $1,000.00       $1,413.50        5.000000        7.17%

Ten Year                $1,000.00                       10.000000         N/A

Inception *             $1,000.00       $1,513.60        5.9813852       7.18%

TR = Total return for period           TR=(ERV/P)-1        51.36%

*Date of Inception: 1/7/92
<PAGE>
                         BENHAM INTERNATIONAL BOND FUND
                                YIELD CALCULATION
                                    12/31/97

                       Formula: YIELD = 2[(A-B/C*D+1)^6-1]

              A    = Investment income earned during the period
              B    = Expenses accrued for the period (net of reimbursements)
              C    = The average daily number of shares outstanding during 
                       the period that were entitled to receive dividends
              D    = The per share price on the last day of the period



              A    =                 $764,460.54
              B    =                 $120,599.24
              C    =               15,463,590.529
              D    =                      $10.92

        Yield      =                        4.62%

                                POWER OF ATTORNEY

         KNOW ALL MEN BY THESE PRESENTS, that the undersigned,  AMERICAN CENTURY
INTERNATIONAL  BOND FUNDS,  hereinafter  called the "Trust" and certain trustees
and officers of the Trust,  do hereby  constitute  and appoint James E. Stowers,
III,  William M. Lyons,  Douglas A. Paul, and Patrick A. Looby, and each of them
individually,  their  true and lawful  attorneys  and agents to take any and all
action and execute any and all  instruments  which said attorneys and agents may
deem  necessary or  advisable to enable the Trust to comply with the  Securities
Act of 1933 and/or the Investment Company Act of 1940, as amended, and any rules
regulations,  orders, or other  requirements of the United States Securities and
Exchange  Commission  thereunder,  in connection with the registration under the
Securities  Act of 1933 and/or the  Investment  Company Act of 1940, as amended,
including  specifically,  but without  limitation  of the  foregoing,  power and
authority to sign the name of the Trust in its behalf and to affix its seal, and
to sign the names of each of such  trustees and officers in their  capacities as
indicated,  to any amendment or supplement to the  Registration  Statement filed
with the  Securities  and Exchange  Commission  under the Securities Act of 1933
and/or the Investment Company Act of 1940, as amended, and to any instruments or
documents  filed  or to be  filed  as a  part  of or  in  connection  with  such
Registration  Statement;  the  Registration  Statement  on  Form  N-14  and  any
amendments or  supplements  thereto to be filed with the Securities and Exchange
Commission under the Securities Act of 1933 and/or the Investment Company Act of
1940, as amended,  and to any  instruments or documents  filed or to be filed as
part of or in  connection  with  such  Registration  Statement;  and each of the
undersigned  hereby  ratifies and confirms  all that said  attorneys  and agents
shall do or cause to be done by virtue hereof.

         IN WITNESS  WHEREOF,  the Trust has caused this Power to be executed by
its duly authorized officers on this the 15th day of January, 1998.

                                      AMERICAN CENTURY INTERNATIONAL BOND FUNDS
                                      (A Massachusetts Business Trust)

                                      By:   /s/Richard W. Ingram
                                               Richard W. Ingram, President


                               SIGNATURE AND TITLE

/s/James E. Stowers III                            /s/ Isaac Stein
James E. Stowers, III                              Isaac Stein
Chairman                                           Director

 /s/ Albert A. Eisenstat                           /s/ Jeanne D. Wohlers
Albert A. Eisenstat                                Jeanne D. Wohlers
Director                                           Director

/s/ Ronald J. Gilson                               /s/William M. Lyons
Ronald J. Gilson                                   William M. Lyons
Director                                           Director

/s/ Myron S. Scholes                               /s/ Maryanne Roepke
Myron S. Scholes                                   Maryanne Roepke
Director                                           Treasurer

 /s/Kenneth E. Scott                               Attest:
Kenneth E. Scott
Director                                           By:/s/ Douglas A. Paul
                                                      Douglas A. Paul, Secretary

                               MULTIPLE CLASS PLAN

            AMERICAN CENTURY CALIFORNIA TAX-FREE AND MUNICIPAL FUNDS
                    AMERICAN CENTURY GOVERNMENT INCOME TRUST
                    AMERICAN CENTURY INTERNATIONAL BOND FUNDS
                        AMERICAN CENTURY INVESTMENT TRUST
                        AMERICAN CENTURY MUNICIPAL TRUST
                    AMERICAN CENTURY TARGET MATURITIES TRUST
                   AMERICAN CENTURY QUANTITATIVE EQUITY FUNDS


Section 1.        Establishment of Plan

As required by Rule 18f-3 under the 1940 Act,  this Plan  describes the multiple
class system for certain series of shares of the Issuers, including the separate
class arrangements for shareholder  services and/or  distribution of shares, the
method for allocating expenses to classes and any related conversion features or
exchange privileges  applicable to the classes.  Upon the effective date of this
Plan, the Issuers elect to offer multiple classes of their shares,  as described
herein, pursuant to Rule 18f-3 and this Plan.

Section 2.        Features of the Classes

a.       Division into Classes.  Each series of shares of the Issuers identified
         in SCHEDULE A attached hereto,  and each series of shares of any Issuer
         subsequently added to this Plan (collectively,  the "Funds"), may offer
         two or more classes of shares:  the Investor Class,  the  Institutional
         Class and the Advisor  Class.  The classes that each Fund is authorized
         to issue  pursuant  to this Plan are set forth in SCHEDULE A. Shares of
         each class of a Fund shall represent an equal pro rata interest in such
         Fund, and generally, shall have identical voting, dividend, liquidation
         and  other  rights,  preferences,  powers,  restrictions,  limitations,
         qualifications,  and terms and conditions,  except that: (A) each class
         shall have a different designation; (B) each class of shares shall bear
         any Class Expenses,  as defined in Section 3d(3) below;  (C) each class
         shall  have  exclusive   voting  rights  on  any  matter  submitted  to
         shareholders  that relates solely to its service  arrangement;  and (D)
         each class shall have separate voting rights on any matter submitted to
         shareholders  in which  the  interests  of one  class  differ  from the
         interests of any other class.

b.       Management Fees.

         (1)      Investor Class Unified Fee. The Issuers of the Funds listed on
                  SCHEDULE  A are each  party  to a  Management  Agreement  with
                  American Century Investment Management,  Inc. ("the Manager"),
                  the Funds' investment adviser, for the provision of investment
                  advisory  and  management  services in exchange  for a single,
                  unified fee.  Such  Management  Agreement and such unified fee
                  applies to each Fund's Investor Class of shares. Shares issued
                  and outstanding prior to the effective date of this Plan shall
                  become Investor Class shares following the effective date.

         (2)      Institutional  Class  Unified  Fee.  The  Issuers of the Funds
                  listed   on   SCHEDULE   A  as  being   authorized   to  issue
                  Institutional  Class  shares  shall  enter  into a  Management
                  Agreement  with the Manager  providing for a unified fee of 20
                  basis points less than the  existing  unified fee in place for
                  the  corresponding  Investor Class of such Funds, as described
                  in each Fund's  current  prospectus or prospectus  supplement.
                  Institutional  Class  shares will be made  available  to large
                  institutional   shareholders,   such   as   corporations   and
                  retirement  plans that are not  participant  directed,  and to
                  other pooled  accounts that meet certain  investment  minimums
                  established  from time to time by the  Manager.  Institutional
                  Class  shares  are not  eligible  for  purchase  by  insurance
                  companies,  except in  connection  with a product  for defined
                  benefit plans not involving a group annuity contract.

         (3)      Advisor  Class Unified Fee. The Issuers of the Funds listed on
                  SCHEDULE A as being  authorized  to issue Advisor Class shares
                  shall  enter  into a  Management  Agreement  with the  Manager
                  providing  for a unified fee of 25 basis  points less than the
                  existing unified fee in place for the  corresponding  Investor
                  Class of such  Funds,  as  described  in each  Fund's  current
                  prospectus or prospectus supplement.  The Advisor Class shares
                  are intended to be sold to employer-sponsored retirement plans
                  (including  participant directed plans),  insurance companies,
                  broker dealers, banks and other financial intermediaries.

c.       Shareholder Services and Distribution  Services.  Shares of the Advisor
         Class of each Fund are  offered  subject to a Master  Distribution  and
         Shareholder  Services  Plan  pursuant  to Rule 12b-1 under the 1940 Act
         (the "12b-1 Plan") between the Issuers and the  Distributor.  The 12b-1
         Plan  governs  the  imposition  of fees for  Shareholder  Services  and
         Distribution Services.

         (1)      Shareholder  Services.  Shareholders  of the Advisor  Class of
                  each Fund typically  receive most or all shareholder  services
                  from  independent  third  parties  rather  than from  American
                  Century Services  Corporation,  the Funds' transfer agent. The
                  cost  of  some  or  all  of  such  services  is  borne  by the
                  shareholders  of the Advisor  Class through the payment of the
                  Shareholder Services Fee under the 12b-1 Plan.

                  Under the 12b-1 Plan,  each Fund is  authorized  to pay to the
                  Distributor,   as   compensation   for   shareholder   service
                  activities  rendered  by  the  Manager,  its  affiliates,   or
                  independent  third  party  service  providers,  to  holders of
                  shares of the Advisor Class of a Fund, a  shareholder  service
                  fee at the rate of 0.25% on an annualized basis of the average
                  net asset  value of each such class of shares of the Fund (the
                  "Shareholder Services Fee").

                  Under the 12b-1 Plan,  shareholder and administrative  service
                  activities  may  include:   (A)  receiving,   aggregating  and
                  processing  purchase,  exchange  and  redemption  request from
                  beneficial owners of Advisor Class shares (including  contract
                  owners  of  insurance  products  that  utilize  the  Funds  as
                  underlying  investment media) and placing  purchase,  exchange
                  and  redemption  orders with the  Distributor;  (B)  providing
                  shareholders  with a service  that invests the assets of their
                  accounts in shares  pursuant  to  specific  or  pre-authorized
                  instructions;  (C) processing dividend payments from a Fund on
                  behalf of shareholders and assisting  shareholders in changing
                  dividend  options,  account  designations  and addresses;  (D)
                  providing  and  maintaining  elective  services  such as check
                  writing  and  wire  transfer  services;  (E)  acting  as  sole
                  shareholder of record and nominee for beneficial  owners;  (F)
                  maintaining  account  records  for  shareholders;  (G) issuing
                  confirmations  of  transactions;  (H) providing  subaccounting
                  with  respect to shares  beneficially  owned by  customers  or
                  providing  the  information  to a Fund as  necessary  for such
                  subaccounting;   (I)  creating  and   forwarding   shareholder
                  communications  from the Funds (such as  proxies,  shareholder
                  reports,  annual  and  semi-annual  financial  statements  and
                  dividend,  distribution and tax notices) to shareholders;  and
                  (J) providing other similar  administrative  and  sub-transfer
                  agency services.

         (2)      Distribution Services. Advisor Class shares of each Fund shall
                  pay the Distributor for  "distribution  expenses"  incurred in
                  connection with providing  distribution services for shares of
                  the Funds, as provided in the 12b-1 Plan, at an annual rate of
                  .25% of the average daily net assets of such class.

                  Under  the  Distribution  Agreement,  "distribution  expenses"
                  include,   but  are  not  limited  to,  expenses  incurred  in
                  connection  with  (A)  payment  of sales  commission,  ongoing
                  commissions and other payments to brokers, dealers,  financial
                  institutions  or others who sell Advisor Class shares pursuant
                  to  Selling  Agreements;  (B)  compensation  to  employees  of
                  Distributor  who  engage  in or  support  distribution  of the
                  Fund's Advisor Class shares; (C) compensation to, and expenses
                  (including  overhead and telephone  expenses) of, Distributor;
                  (D) the printing of  prospectuses,  statements  of  additional
                  information and reports for other than existing  shareholders;
                  (E)  the  preparation,  printing  and  distribution  of  sales
                  literature and  advertising  materials  provided to the Funds'
                  shareholders and prospective  shareholders;  (F) receiving and
                  answering   correspondence   from  prospective   shareholders,
                  including distributing prospectuses,  statements of additional
                  information,  and  shareholder  reports;  (G) the providing of
                  facilities  to answer  questions  from  prospective  investors
                  about  Fund  shares;  (H)  complying  with  federal  and state
                  securities  laws  pertaining  to the sale of Fund Shares;  (I)
                  assisting  investors  in  completing   application  forms  and
                  selecting   dividend  and  other  account  options;   (J)  the
                  providing of other  reasonable  assistance in connection  with
                  the  distribution  of  Fund  shares;  (K) the  organizing  and
                  conducting  of  sales  seminars  and  payments  in the form of
                  transactional  compensation  or  promotional  incentives;  (L)
                  profit on the foregoing; (M) the payment of "service fees", as
                  contemplated  by the Rules of Fair  Practice  of the  National
                  Association  of  Securities   Dealers;   and  (N)  such  other
                  distribution and services  activities as the Issuers determine
                  may be paid for by the  Issuers  pursuant to the terms of this
                  Agreement and in accordance with Rule 12b-1 of the 1940 Act.

Section 3.        Allocation of Income and Expenses

a.       Daily  Dividend  Funds.   Funds  that  declare   distributions  of  net
         investment  income daily to maintain the same net asset value per share
         in each class ("Daily  Dividend  Funds") will allocate gross income and
         expenses (other than Class Expenses, as defined below) to each class on
         the basis of  "relative  net assets  (settled  shares)".  Realized  and
         unrealized  capital gains and losses will be allocated to each class on
         the  basis of  relative  net  assets.  "Relative  net  assets  (settled
         shares),"  for this purpose,  are net assets valued in accordance  with
         generally  accepted  accounting  principles  but excluding the value of
         subscriptions  receivable,  in  relation  to  the  net  assets  of  the
         particular  Daily  Dividend Fund.  Expenses to be so allocated  include
         Issuer Expenses and Fund Expenses, each as defined below.

b.       Non-Daily  Dividend  Funds.  The gross income,  realized and unrealized
         capital  gains and losses and expenses  (other than Class  Expenses) of
         each Fund,  other than the Daily Dividend Funds,  shall be allocated to
         each  class on the basis of its net  asset  value  relative  to the net
         asset  value of the Fund.  Expenses  to be so  allocated  also  include
         Issuer Expenses and Fund Expenses.

c.       Apportionment  of  Certain  Expenses.  Expenses  of  a  Fund  shall  be
         apportioned  to each  class of shares  depending  on the  nature of the
         expense item. Issuer Expenses and Fund Expenses will be allocated among
         the classes of shares pro rata based on their relative net asset values
         in  relation to the net asset  value of all  outstanding  shares in the
         Fund.  Approved  Class  Expenses  shall be allocated to the  particular
         class to which they are attributable. In addition, certain expenses may
         be allocated  differently if their method of imposition changes.  Thus,
         if a Class Expense can no longer be attributed to a class,  it shall be
         charged to a Fund for allocation  among  classes,  as determined by the
         Manager.

d.       Definitions.

         (1)      Issuer  Expenses.  "Issuer  Expenses"  include  expenses of an
                  Issuer that are not attributable to a particular Fund or class
                  of a Fund.  Issuer Expenses include fees and expenses of those
                  Trustees/Directors who are not "interested persons" as defined
                  in the 1940 Act  ("Independent  Trustees"),  including counsel
                  fees for the Independent  Trustees,  and certain extraordinary
                  expenses  of  the  Issuer  that  are  not  attributable  to  a
                  particular Fund or class of a Fund.

         (2)      Fund Expenses.  "Fund Expenses"  include expenses of an Issuer
                  that  are  attributable  to a  particular  fund  but  are  not
                  attributable to a particular  class of the Fund. Fund Expenses
                  include (i) interest  expenses,  (ii) taxes,  (iii)  brokerage
                  expenses,  and (iv) certain  extraordinary  expenses of a Fund
                  that are not attributable to a particular class of a Fund.

         (3)      Class  Expenses.   "Class  Expenses"  are  expenses  that  are
                  attributable  to a  particular  class of a Fund  and  shall be
                  limited to: (i)  applicable  unified fee;  (ii)  payments made
                  pursuant  to a Rule  12b-1  Plan  ("12b-1  Plan  Fee");  (iii)
                  payments made pursuant to the  shareholder  Services Plan; and
                  (iv) certain extraordinary  expenses of an Issuer or Fund that
                  are attributable to a particular class of a Fund.

         (4)      Extraordinary  Expenses.  "Extraordinary  expenses"  shall  be
                  allocated  as an Issuer  Expense,  a Fund  Expense  or a Class
                  Expense in such manner and utilizing  such  methodology as the
                  Manager shall reasonably determine,  which determination shall
                  be  subject  to  ratification  or  approval  of the  Board  of
                  Trustees/Directors  and shall be  consistent  with  applicable
                  legal principles and  requirements  under the 1940 Act and the
                  Internal Revenue Code, as amended. the Manager shall report to
                  the  Board of  Trustees/Directors  quarterly  regarding  those
                  extraordinary  expenses  that  have  been  allocated  as Class
                  Expenses.  Any such  allocations  shall be  reviewed  by,  and
                  subject to the approval of, the Board of Trustees/Directors.

Section 4.        Exchange Privileges

Subject to the restrictions and conditions set forth in the Funds' prospectuses,
shareholders  may (i)  exchange  shares of one class of a Fund for shares of the
same class of another Fund,  (ii) exchange  Investor  Class shares for shares of
any fund within the American  Century  family of funds that only offers a single
class of shares (a "Single Class Fund"), and (iii) exchange shares of any Single
Class Fund for Investor  Class shares of another Fund,  provided that the amount
to be exchanged meets the applicable  minimum  investment  requirements  and the
shares  to  be  acquired  in  the  exchange  are   qualified  for  sale  in  the
stockholder's state of residence.

Section 5.        Conversion Features

Conversions  from one  class of shares  into  another  class of  shares  are not
permitted;  provided, however, that if a shareholder of a particular class is no
longer eligible to own shares of that class, such  shareholders'  shares will be
converted  to  shares  of the same  Fund  but of  another  class  in which  such
shareholder is eligible to invest.  Similarly, if a shareholder becomes eligible
to invest in shares of another  class that has lower  expenses than the class in
which such shareholder is invested,  such shareholder may be eligible to convert
into shares of the same Fund but of the class with the lower expenses.

Section 6.        Quarterly and Annual Reports

The Board of  Trustees/Directors  shall  receive  quarterly  and annual  reports
concerning  all  allocated  Class  Expenses  and   distribution   and  servicing
expenditures  complying  with paragraph  (b)(3)(ii) of Rule 12b-1,  as it may be
amended  from  time  to  time.  In  the  reports,   only  expenditures  properly
attributable  to the sale or servicing  of a particular  class of shares will be
used to justify any  distribution or servicing fee or other expenses  charged to
that class.  Expenditures  not related to the sale or  servicing of a particular
class shall not be presented to the Board of  Trustees/Directors  to justify any
fee  attributable to that class.  The reports,  including the  allocations  upon
which they are  based,  shall be  subject  to the  review  and  approval  of the
Independent  Trustees of the  Issuers  who have no direct or indirect  financial
interest  in the  operation  of this  Plan in the  exercise  of their  fiduciary
duties.

Section 7.        Waiver or Reimbursement of Expenses

Expenses  may be waived or  reimbursed  by any  adviser to the  Issuers,  by the
Issuers' underwriter or by any other provider of services to the Issuers without
the prior  approval of the Issuers' Board of  Trustees/Directors,  provided that
the fee is waived or reimbursed to all shares of a particular Fund in proportion
to their relative average daily net asset values.

Section 8.        Effectiveness of Plan

Upon  receipt  of  approval  by votes  of a  majority  of both (a) the  Board of
Trustees/Directors  of the Issuers and (b) the Independent  Trustees,  this Plan
shall become effective October 1, 1997.

Section 9.        Material Modifications

This  Plan may not be  amended  to  modify  materially  its  terms  unless  such
amendment is approved in the manner  provided for initial  approval in Section 8
herein.

         IN WITNESS  WHEREOF,  the Issuers have adopted this Multiple Class Plan
as of the 1st day of August, 1997.

                                      AMERICAN CENTURY CALIFORNIA TAX-FREE AND  
                                       MUNICIPAL FUNDS                          
                                      AMERICAN CENTURY GOVERNMENT INCOME TRUST  
                                      AMERICAN CENTURY INTERNATIONAL BOND FUNDS 
                                      AMERICAN CENTURY INVESTMENT TRUST         
                                      AMERICAN CENTURY MUNICIPAL TRUST          
                                      AMERICAN CENTURY TARGET MATURITIES TRUST  
                                      AMERICAN CENTURY QUANTITATIVE EQUITY FUNDS

Attest:


/s/Douglas A. Paul                    /s/James M. Benham
Douglas A. Paul                       James M. Benham
Secretary                             President and Chief Executive Officer
<PAGE>
                                   SCHEDULE A
                      Funds Covered by this Multiclass Plan

- ------------------------------------------------- -------- ------- -------------
                                                  Investor Advisor Institutional
Fund                                                Class   Class      Class
- ------------------------------------------------- -------- ------- -------------
American Century Equity Growth Fund                   X       X          X
American Century Global Gold Fund                     X       X
American Century Global Natural Resources Fund        X       X
American Century Income & Growth Fund                 X       X          X
American Century Utilities Fund                       X       X
Benham Adjustable Rate Government Securities Fund     X       X
Benham European Government Bond Fund                  X       X
Benham GNMA Fund                                      X       X
Benham Government Agency Money Market Fund            X       X
Benham Intermediate-Term Treasury Fund                X       X
Benham Long-Term Treasury Fund                        X       X
Benham Prime Money Market Fund                        X       X
Benham Short-Term Treasury Fund                       X       X
Benham Target Maturities Trust:  2000                 X       X
Benham Target Maturities Trust:  2005                 X       X
Benham Target Maturities Trust:  2010                 X       X
Benham Target Maturities Trust:  2015                 X       X
Benham Target Maturities Trust:  2020                 X       X
Benham Target Maturities Trust:  2025                 X       X
- ------------------------------------------------- -------- ------- -------------


Dated:  March 9, 1998

                                      AMERICAN CENTURY CALIFORNIA TAX-FREE AND  
                                       MUNICIPAL FUNDS                          
                                      AMERICAN CENTURY GOVERNMENT INCOME TRUST  
                                      AMERICAN CENTURY INTERNATIONAL BOND FUNDS 
                                      AMERICAN CENTURY INVESTMENT TRUST         
                                      AMERICAN CENTURY MUNICIPAL TRUST          
                                      AMERICAN CENTURY TARGET MATURITIES TRUST  
                                      AMERICAN CENTURY QUANTITATIVE EQUITY FUNDS

                                      /s/Douglas A. Paul
                                      Douglas A. Paul
                                      Secretary

<TABLE> <S> <C>

<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL  INFORMATION  EXTRACTED FROM THE ANNUAL
REPORT OF AMERICAN  CENTURY MUTUAL FUNDS,  INC. AND IS QUALIFIED IN ITS ENTIRETY
BY REFERENCE TO SUCH REPORT.
</LEGEND>
<CIK>  0000880268
<NAME> AMERICAN CENTURY INTERNATIONAL BOND FUND
<SERIES>
   <NUMBER> 1
   <NAME> AMERICAN CENTURY-BENHAM INTERNATIONAL BOND FUND
       
<S>                                           <C>
<PERIOD-TYPE>                                      YEAR
<FISCAL-YEAR-END>                                  DEC-31-1997
<PERIOD-END>                                       DEC-31-1997
<INVESTMENTS-AT-COST>                                            121,965,091
<INVESTMENTS-AT-VALUE>                                           117,831,170
<RECEIVABLES>                                                     51,756,476
<ASSETS-OTHER>                                                     2,187,383
<OTHER-ITEMS-ASSETS>                                                       0
<TOTAL-ASSETS>                                                   171,775,029
<PAYABLE-FOR-SECURITIES>                                           2,153,942
<SENIOR-LONG-TERM-DEBT>                                                    0
<OTHER-ITEMS-LIABILITIES>                                          3,889,931
<TOTAL-LIABILITIES>                                                6,043,873
<SENIOR-EQUITY>                                                            0
<PAID-IN-CAPITAL-COMMON>                                         170,173,520
<SHARES-COMMON-STOCK>                                             15,176,256
<SHARES-COMMON-PRIOR>                                             19,497,895
<ACCUMULATED-NII-CURRENT>                                         (1,481,465)
<OVERDISTRIBUTION-NII>                                                     0
<ACCUMULATED-NET-GAINS>                                            1,248,251
<OVERDISTRIBUTION-GAINS>                                                   0
<ACCUM-APPREC-OR-DEPREC>                                          (4,209,150)
<NET-ASSETS>                                                     165,731,156
<DIVIDEND-INCOME>                                                          0
<INTEREST-INCOME>                                                 11,676,370
<OTHER-INCOME>                                                             0
<EXPENSES-NET>                                                     1,709,881
<NET-INVESTMENT-INCOME>                                            9,944,104
<REALIZED-GAINS-CURRENT>                                         (13,266,841)
<APPREC-INCREASE-CURRENT>                                        (12,346,528)
<NET-CHANGE-FROM-OPS>                                            (15,669,265)
<EQUALIZATION>                                                             0
<DISTRIBUTIONS-OF-INCOME>                                                  0
<DISTRIBUTIONS-OF-GAINS>                                                   0
<DISTRIBUTIONS-OTHER>                                                      0
<NUMBER-OF-SHARES-SOLD>                                            8,534,948
<NUMBER-OF-SHARES-REDEEMED>                                       15,004,608
<SHARES-REINVESTED>                                                  230,124
<NET-CHANGE-IN-ASSETS>                                           (86,724,570)
<ACCUMULATED-NII-PRIOR>                                                    0
<ACCUMULATED-GAINS-PRIOR>                                         (6,670,633)
<OVERDISTRIB-NII-PRIOR>                                            5,135,859
<OVERDIST-NET-GAINS-PRIOR>                                                 0
<GROSS-ADVISORY-FEES>                                              1,219,730
<INTEREST-EXPENSE>                                                         0
<GROSS-EXPENSE>                                                    1,732,266
<AVERAGE-NET-ASSETS>                                             206,206,921
<PER-SHARE-NAV-BEGIN>                                                  11.79
<PER-SHARE-NII>                                                         0.65
<PER-SHARE-GAIN-APPREC>                                                (1.34)
<PER-SHARE-DIVIDEND>                                                    0.04
<PER-SHARE-DISTRIBUTIONS>                                               0.00
<RETURNS-OF-CAPITAL>                                                    0.00
<PER-SHARE-NAV-END>                                                    10.92
<EXPENSE-RATIO>                                                         0.84
<AVG-DEBT-OUTSTANDING>                                                  0
<AVG-DEBT-PER-SHARE>                                                    0.00
        

</TABLE>


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