AMERICAN CENTURY TARGET MATURITIES TRUST
485BPOS, 1997-08-29
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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. 2-94608:

         Pre-Effective Amendment No.____

         Post-Effective Amendment No._27_                              X
                                                                     -----
                                     and/or

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

         File No. 811-4165:

         Amendment No._29_


         AMERICAN CENTURY TARGET MATURITIES TRUST
         (Exact Name of Registrant as Specified in Charter)

         4500 Main Street, Kansas City, MO  64141-6200
         (Address of Principal Executive Offices)

         Registrant's Telephone Number, including Area Code:  415-965-8300

         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:  Immediately, upon effectiveness
(first offered 3/25/85)

It is proposed that this filing become effective:

   _____  immediately upon filing pursuant to paragraph (b) of Rule 485
   __X__  on September 2, 1997, 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 November 14, 1996,  the  Registrant  filed a
Rule 24f-2 Notice on Form 24f-2 with respect to its fiscal year ended  September
30, 1996.
<PAGE>
                    AMERICAN CENTURY TARGET MATURITIES TRUST
                    1933 Act Post-Effective Amendment No. 27
                            1940 Act Amendment No. 29

                                    FORM N-1A
                              CROSS-REFERENCE SHEET

PART A:  PROSPECTUS

ITEM      PROSPECTUS CAPTION

1         Cover Page

2         Transaction and Operating Expense Table

3         Financial Highlights, Performance Advertising

4         Further Information About American Century, Investment Policies
          of the Funds, Investment Objectives of the Funds, 
          Other Investment Practices, Their Characteristics and Risks

5         Investment Management, Transfer and Administrative Services,
          Financial Highlights

5A        Not Applicable

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

7         How to Open an Account, Distribution of Fund Shares, Cover Page, Share
          Price, Transfer and Administrative Services, How to Exchange From One
          Account to Another

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        About the Trust

13        Investment Policies and Techniques, Investment Restrictions, Portfolio
          Transactions

14        Trustee and Officers

15        Additional Purchase and Redemption Information, Trustees and Officers

16        Management, Transfer and Administrative and 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]
                                    American
                                 Century(reg.sm)


                                SEPTEMBER 2, 1997


                                     BENHAM
                                  GROUP(reg.tm)

                                   Target 2000
                                   Target 2005
                                   Target 2010
                                   Target 2015
                                   Target 2020
                                   Target 2025

INVESTOR CLASS

[front cover]

                         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--FAMILY OF FUNDS
- -------------------------------------------------------------------------------
        Benham                American Century       Twentieth Century(reg. tm)
        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
- -------------------------------------------------------------------------------
      Target 2000 
      Target 2005 
      Target 2010 
      Target 2015 
      Target 2020 
      Target 2025



                                  PROSPECTUS

                               SEPTEMBER 2, 1997

                     Target 2000 * Target 2005 * Target 2010
                     Target 2015 * Target 2020 * Target 2025

                                INVESTOR CLASS

                   AMERICAN CENTURY TARGET MATURITIES TRUST

    American  Century  Target  Maturities  Trust is a part of  American  Century
Investments,  a family of funds that  includes  nearly 70 no-load  mutual  funds
covering a variety of investment opportunities. Six of the funds from our Benham
Group that  invest  primarily  in  zero-coupon  U.S.  Treasury  securities,  are
described in this Prospectus.  Their investment  objectives are 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 Funds 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 January 1, 1997,  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 Internet: 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).

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 OBJECTIVES OF THE FUNDS

 AMERICAN CENTURY - BENHAM TARGET MATURITIES TRUST: 2000

 AMERICAN CENTURY - BENHAM TARGET MATURITIES TRUST: 2005

 AMERICAN CENTURY - BENHAM TARGET MATURITIES TRUST: 2010

 AMERICAN CENTURY - BENHAM TARGET MATURITIES TRUST: 2015

 AMERICAN CENTURY - BENHAM TARGET MATURITIES TRUST: 2020

 AMERICAN CENTURY - BENHAM TARGET MATURITIES TRUST: 2025

    Each  Fund  seeks  to  provide  the  highest  attainable  investment  return
consistent  with  the  creditworthiness  of  U.S.  Treasury  securities  and the
professional management of reinvestment and market risks.

    Each Fund invests primarily in zero-coupon U.S. Treasury securities and will
be liquidated shortly after the conclusion of its target maturity year. For more
information   about  this  unique   feature,   please  see   "Distributions-Fund
Liquidation," on page 22.

    An investment in the Funds is neither insured nor guaranteed by the U.S.
Government.


                There is no assurance that the Funds will achieve
                     their respective investment objectives.

NO  PERSON  IS  AUTHORIZED  BY THE  FUNDS  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 FUNDS, AND YOU SHOULD NOT RELY
ON ANY OTHER INFORMATION OR REPRESENTATION.


2      INVESTMENT OBJECTIVES                        AMERICAN CENTURY INVESTMENTS


                               TABLE OF CONTENTS

 Investment Objectives of the Funds .......................................  2
 Transaction and Operating Expense Table ..................................  4
 Financial Highlights .....................................................  5
 INFORMATION REGARDING THE FUNDS
 Investment Policies of the Funds ......................................... 11
    Investment Objectives of the Funds .................................... 11
    Investment Policies ................................................... 11
    Zero Coupon Securities ................................................ 12
    Other Investments ..................................................... 12
 Other Investment Practices, Their Characteristics
 and Risks ................................................................ 12
    Coupon-Bearing U.S. Treasury Securities ............................... 13
    Cash Management ....................................................... 13
    Securities Lending .................................................... 13
    Portfolio Turnover .................................................... 13
 Performance Advertising .................................................. 13

 HOW TO INVEST WITH AMERICAN CENTURY INVESTMENTS

 American Century Investments ............................................. 15
 Investing in American Century ............................................ 15
 How to Open an Account ................................................... 15
            By Mail ....................................................... 15
            By Wire ....................................................... 15
            By Exchange ................................................... 16
            In Person ..................................................... 16
       Subsequent Investments ............................................. 16
            By Mail ....................................................... 16
            By Telephone .................................................. 16
            By Online Access .............................................. 16
            By Wire ....................................................... 16
            In Person ..................................................... 16
       Automatic Investment Plan .......................................... 16
  How to Exchange from One Account to Another ............................. 16
            By Mail ....................................................... 17
            By Telephone .................................................. 17
            By Online Access .............................................. 17
  How to Redeem Shares .................................................... 17
            By Mail ....................................................... 17
            By Telephone .................................................. 17
            By Check-A-Month .............................................. 17
            Other Automatic Redemptions ................................... 17
       Redemption Proceeds ................................................ 17
            By Check ...................................................... 17
            By Wire and ACH ............................................... 17
       Redemption of Shares
            in Low-Balance Accounts ....................................... 18
  Signature Guarantee ..................................................... 18
  Special Shareholder Services ............................................ 18
            Automated Information Line .................................... 18
            Online Account Access ......................................... 18
            Open Order Service ............................................ 18
            Tax-Qualified Retirement Plans ................................ 19
  Important Policies Regarding Your Investments ........................... 19
  Reports to Shareholders ................................................. 20
 Employer-Sponsored Retirement Plans and
    Institutional Accounts ................................................ 20

 ADDITIONAL INFORMATION YOU SHOULD KNOW

 Share Price .............................................................. 21
    When Share Price Is Determined ........................................ 21
    How Share Price Is Determined ......................................... 21
    Where to Find Information About Share Price ........................... 21
 Distributions ............................................................ 22
    Buying a Dividend ..................................................... 22
    Reverse Share Splits .................................................. 22
    Fund Liquidation ...................................................... 22
 Taxes .................................................................... 22
    Tax-Deferred Accounts ................................................. 22
    Taxable Accounts ...................................................... 22
 Management ............................................................... 23
    Investment Management ................................................. 23
    Code of Ethics ........................................................ 24
    Transfer and Administrative Services .................................. 24
 Distribution of Fund Shares .............................................. 25
 Further Information About American Century ............................... 25


PROSPECTUS                                        TABLE OF CONTENTS      3


                    TRANSACTION AND OPERATING EXPENSE TABLE

                                                      Target  2000,  Target 2005
                                                      Target  2010,  Target 2015
                                                      Target  2020,  Target 2025

 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) .........................................    0.59%

12b-1 Fees .................................................    none

Other Expenses .............................................    0.01%

Total Fund Operating Expenses ..............................    0.60%

 EXAMPLE:

You would pay the following expenses                    1 year  $  6
on a $1,000 investment, assuming a 5%                  3 years    19
annual return and redemption at the end                5 years    34
of each time period:                                  10 years    75

(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. (the "Manager") 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 24.

  The purpose of the above 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 of the Funds  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 Funds offer
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 25.


4   TRANSACTION AND OPERATING EXPENSE TABLE         AMERICAN CENTURY INVESTMENTS

<TABLE>
<CAPTION>
                             FINANCIAL HIGHLIGHTS
                                  TARGET 2000

  The Financial  Highlights for each of the periods  presented have been audited
by KPMG Peat Marwick LLP, independent auditors,  whose report thereon appears in
the Fund's annual report,  which is incorporated by reference into the Statement
of Additional  Information.  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
September 30, except as noted.

                           1996      1995      1994      1993      1992      1991      1990    1989(1)    1988      1987

 PER-SHARE DATA(2)

Net Asset
Value,
<S>                       <C>       <C>      <C>       <C>       <C>       <C>       <C>       <C>       <C>      <C>   
Beginning of Period ......$76.86    $66.93   $72.40    $62.16    $52.67    $43.11    $42.79    $37.16    $33.33   $35.44

Income From
Investment Operations

  Net Investment Income ..  4.75      4.37     3.99      3.94      3.90      3.69      3.40      2.36      2.94     2.68

  Net Realized and
  Unrealized Gain
  (Loss) on Investment
  Transactions ........... (1.66)     5.56    (9.46)     6.30      5.59      5.87     (3.08)     3.27      0.89   (4.79)
                           ------    ------   ------    ------    ------    ------    ------    ------    ------  ------
  Total From
  Investment Operations ..  3.09      9.93    (5.47)    10.24      9.49      9.56      0.32      5.63      3.83   (2.11)
                           ------    ------   ------    ------    ------    ------    ------    ------    ------  ------
Distributions

  From Net Investment
  Income ................. (3.94)    (3.42)   (3.25)    (2.34)    (2.22)    (2.09)    (2.35)      --     (2.23)   (4.72)

  From Net Realized
  Capital Gains ..........    --        --    (2.95)    (1.83)    (0.16)       --     (0.10)      --        --       --

  In Excess of Net
  Realized Gains .........    --      --     (1.20)       --        --        --       --         --       --        --
                           ------    ------   ------    ------    ------    ------    ------    ------    ------  ------
  Total Distributions .... (3.94)   (3.42)   (7.40)    (4.17)    (2.38)    (2.09)    (2.45)       --     (2.23)   (4.72)
                           ------    ------   ------    ------    ------    ------    ------    ------    ------  ------
Reverse Share Split ......  3.94     3.42     7.40      4.17      2.38      2.09      2.45        --      2.23     4.72
                           ------    ------   ------    ------    ------    ------    ------    ------    ------  ------
Net Asset Value,
End of Period ............ $79.95   $76.86   $66.93    $72.40    $62.16    $52.67    $43.11     $42.79   $37.16   $33.33
 .                         =======   =======  =======   =======   =======   =======   =======   =======  =======  =======
Total Return(3) ..........  4.01%   14.84%   (7.54)%   16.46%    18.02%    22.18%     0.75%     15.15%   11.49%  (5.95)%

 RATIOS/SUPPLEMENTAL DATA

  Ratio of Operating
  Expenses to
  Average Net Assets .....  0.53%   0.63%    0.59%      0.60%     0.66%     0.66%     0.70%     0.70%(4)  0.70%    0.70%

  Ratio of Net Investment
  Income to Average
  Net Assets .............  5.99%   6.13%    5.74%      5.94%     6.90%     7.67%     7.84%     7.81%(4)   8.33%   8.08%

  Portfolio Turnover 
  Rate ...................    29%     53%      89%        77%       93%       67%       79%       49%       163%     73%

  Net Assets, End
  of Period
  (in thousands) .........$267,757 $294,736 $243,895  $291,418  $190,063  $89,655   $53,216      $34,820  $14,073 $6,285

(1)  In 1989, the fiscal year-end for American  Century Target  Maturities Trust
     was changed from December 31 to September 30.

(2)  Per-share  data in this  table  was  calculated  using the  average  shares
     outstanding during the year. Dividends and distributions shown in the table
     will be different than the actual per-share distributions to shareholders.

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

(4)  Annualized.
</TABLE>


PROSPECTUS                                     FINANCIAL HIGHLIGHTS       5

<TABLE>
<CAPTION>
                             FINANCIAL HIGHLIGHTS
                                  TARGET 2005

  The Financial  Highlights for each of the periods  presented have been audited
by KPMG Peat Marwick LLP, independent auditors,  whose report thereon appears in
the Fund's annual report,  which is incorporated by reference into the Statement
of Additional  Information.  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
September 30, except as noted.

                           1996      1995      1994      1993      1992      1991      1990    1989(1)    1988      1987

 PER-SHARE DATA(2)

Net Asset
Value,
<S>                      <C>       <C>       <C>       <C>       <C>       <C>        <C>      <C>       <C>       <C>   
Beginning of Period .....$56.61    $45.22    $51.84    $41.18    $35.13    $27.74     $28.61   $24.36    $21.28    $23.74

Income From
Investment Operations

  Net Investment Income .  3.50    3.33      3.11     2.90      2.69      2.47      2.27      1.54      1.90     1.77

  Net Realized and
  Unrealized Gain
  (Loss) on Investment
  Transactions .......... (2.28)    8.06    (9.73)    7.76      3.36      4.92     (3.14)      2.71      1.18   (4.23)
                          ------   ------   ------   ------    ------    ------    ------     ------    ------  ------
  Total From
  Investment Operations .  1.22     11.39   (6.62)   10.66      6.05      7.39     (0.87)      4.25      3.08   (2.46)
                          ------   ------   ------   ------    ------    ------    ------     ------    ------  ------
Distributions

  From Net
  Investment Income ..... (2.06)   (2.41)   (2.70)   (2.51)    (1.75)    (0.86)    (1.60)        --     (1.53)   (3.52)

  From Net Realized
  Capital Gains ......... (0.58)   (0.67)   (8.47)   (1.01)    (0.37)       --     (0.07)        --       --     (0.13)
                          ------   ------   ------   ------    ------    ------    ------     ------    ------  ------
  Total Distributions ... (2.64)   (3.08)  (11.17)   (3.52)    (2.12)    (0.86)    (1.67)        --     (1.53)   (3.65)
                          ------   ------   ------   ------    ------    ------    ------     ------    ------  ------
Reverse Share Split .....  2.64     3.08    11.17     3.52     2.12       0.86      1.67         --      1.53     3.65
                          ------   ------   ------   ------    ------    ------    ------     ------    ------  ------
Net Asset Value,
End of Period ........... $57.83  $56.61   $45.22    $51.84   $41.18    $35.13    $27.74      $28.61    $24.36   $21.28
                         =======  =======  =======  =======   =======   =======   =======    =======    =======  =======
Total Return(3) .........  2.15%   25.16%  (12.75)%  25.89%   17.22%    26.64%    (3.04)%     17.45%    14.48%  (10.36)%

 RATIOS/SUPPLEMENTAL DATA

  Ratio of Operating
  Expenses to
  Average Net Assets ....  0.58%    0.71%   0.64%     0.62%    0.63%     0.70%     0.70%      0.70%(4)   0.70%     0.70%

  Ratio of Net Investment
  Income to Average
  Net Assets ............  6.05%    6.58%   6.37%     6.44%    7.27%     7.80%     7.93%      7.66%(4)   8.44%     8.31%

  Portfolio Turnover 
  Rate ..................    31%      34%      68%      50%      64%       85%       186%         72%       27%       68%

  Net Assets,
  End of Period
  (in thousands) .......$238,864  $183,452  $96,207  $149,890  $168,697  $161,388  $46,303     $24,955   $8,948   $3,680

(1)  In 1989, the fiscal year-end for American  Century Target  Maturities Trust
     was changed from December 31 to September 30.

(2)  Per-share  data in this  table  was  calculated  using the  average  shares
     outstanding during the year. Dividends and distributions shown in the table
     will be different than the actual per-share distributions to shareholders.

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

(4)  Annualized.
</TABLE>


6      FINANCIAL HIGHLIGHTS                   AMERICAN CENTURY INVESTMENTS

<TABLE>
<CAPTION>
                             FINANCIAL HIGHLIGHTS
                                  TARGET 2010

  The Financial  Highlights for each of the periods  presented have been audited
by KPMG Peat Marwick LLP, independent auditors,  whose report thereon appears in
the Fund's annual report,  which is incorporated by reference into the Statement
of Additional  Information.  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
September 30, except as noted.

                           1996      1995      1994      1993      1992      1991      1990    1989(1)    1988      1987

 PER-SHARE DATA(2)

Net Asset Value,
<S>                       <C>       <C>       <C>      <C>       <C>       <C>       <C>       <C>       <C>      <C>   
Beginning of Period ..... $42.14    $31.67    $38.13   $28.53    $25.08    $19.18    $20.59    $17.31    $14.96   $17.65

Income From
Investment Operations

  Net Investment Income .  2.58      2.41      2.24      2.05      1.88      1.72     1.61       1.08      1.29     1.23

  Net Realized and
  Unrealized Gain
  (Loss) on Investment
  Transactions .......... (2.25)     8.06     (8.70)     7.55      1.57      4.18    (3.02)      2.20      1.06   (3.92)
                          ------    ------    ------    ------    ------    ------   ------     ------    ------  ------
  Total From
  Investment Operations .  0.33     10.47     (6.46)     9.60      3.45      5.90    (1.41)      3.28      2.35   (2.69)
                          ------    ------    ------    ------    ------    ------   ------     ------    ------  ------
Distributions

  From Net
  Investment Income ..... (1.57)   (1.48)     (1.46)    (1.58)    (1.14)    (1.05)   (1.50)        --     (0.42)  (0.90)

  From Net Realized
  Capital Gains .........    --    (0.48)     (4.31)    (1.14)       --        --    (0.09)        --        --      --
                          ------    ------    ------    ------    ------    ------   ------     ------    ------  ------
  Total Distributions ... (1.57)   (1.96)     (5.77)    (2.72)    (1.14)    (1.05)   (1.59)        --     (0.42)  (0.90)

Reverse Share Split .....  1.57     1.96       5.77      2.72      1.14      1.05     1.59         --      0.42    0.90
                          ------    ------    ------    ------    ------    ------   ------     ------    ------  ------
Net Asset Value,
End of Period ...........$42.47   $42.14     $31.67    $38.13    $28.53    $25.08    $19.18    $20.59    $17.31   $14.96
                         =======  =======   =======   =======    =======   =======  =======   =======   =======  =======
Total Return(3) ......... 0.78%    33.06%   (16.92)%   33.61%    13.76%    30.76%   (6.85)%    18.95%    15.71% (15.24)%

RATIOS/SUPPLEMENTAL DATA

  Ratio of Operating
  Expenses to
  Average Net Assets .... 0.67%    0.71%     0.68%      0.66%     0.70%     0.70%     0.70%   0.70%(4)    0.70%    0.70%

  Ratio of Net Investment
  Income to Average
  Net Assets ............ 5.98%    6.56%     6.35%      6.32%     7.20%     7.73%     7.82%   7.34%(4)    8.11%    8.13%

  Portfolio
  Turnover Rate .........   24%      26%       35%       132%       95%      131%      191%      88%       259%      84%

  Net Assets,
  End of Period
  (in thousands) .......$111,117   $95,057   $46,312   $70,551   $55,565   $47,661   $37,222   $42,439   $9,617   $9,297

(1)  In 1989, the fiscal year-end for American  Century Target  Maturities Trust
     was changed from December 31 to September 30.

(2)  Per-share  data in this  table  was  calculated  using the  average  shares
     outstanding during the year. Dividends and distributions shown in the table
     will be different than the actual per-share distributions to shareholders.

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

(4)  Annualized.
</TABLE>

PROSPECTUS                                     FINANCIAL HIGHLIGHTS       7

<TABLE>
<CAPTION>
                             FINANCIAL HIGHLIGHTS
                                  TARGET 2015

  The Financial  Highlights for each of the periods  presented have been audited
by KPMG Peat Marwick LLP, independent auditors,  whose report thereon appears in
the Fund's annual report,  which is incorporated by reference into the Statement
of Additional  Information.  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
September 30, except as noted.

                           1996      1995      1994      1993      1992      1991      1990    1989(1)    1988      1987

 PER-SHARE DATA(2)

Net AssetValue,
<S>                       <C>       <C>       <C>      <C>       <C>        <C>      <C>       <C>       <C>      <C>   
Beginning of Period ......$32.20    $22.79    $29.04   $20.39    $18.44     $13.75   $15.62    $12.63    $11.37   $14.24

Income From
Investment Operations

  Net Investment Income ..  1.85      1.71     1.57      1.46      1.33      1.26      1.18      0.79      0.94     0.90

  Net Realized and
  Unrealized Gain
  (Loss) on Investment
  Transactions ........... (2.09)     7.70    (7.82)     7.19      0.62      3.43     (3.05)     2.20      0.32   (3.77)
                          ------    ------    ------    ------    ------    ------   ------     ------    ------  ------
  Total From
  Investment Operations .. (0.24)     9.41    (6.25)     8.65      1.95      4.69     (1.87)     2.99      1.26   (2.87)
                          ------    ------    ------    ------    ------    ------   ------     ------    ------  ------
Distributions

  From Net
  Investment Income ...... (1.28)    (0.87)   (1.19)    (1.45)   (1.23)     (0.97)   (0.50)        --     (0.55)  (0.22)

  From Net Realized
  Capital Gains .......... (1.61)       --    (7.08)    (0.34)      --         --    (0.01)        --        --      --

  In Excess of Net
  Realized Gains .........    --        --    (0.37)       --       --         --       --         --        --      --
                          ------    ------    ------    ------    ------    ------   ------     ------    ------  ------
  Total Distributions .... (2.89)    (0.87)   (8.64)    (1.79)    (1.23)    (0.97)   (0.51)        --      (0.55) (0.22)
                          ------    ------    ------    ------    ------    ------   ------     ------    ------  ------
Reverse Share Split ......  2.89      0.87     8.64      1.79      1.23      0.97     0.51         --       0.55   0.22
                          ------    ------    ------    ------    ------    ------   ------     ------    ------  ------
Net Asset Value,
End of Period ............ $31.96   $32.20   $22.79     $29.04   $20.39    $18.44   $13.75      $15.62    $12.63  $11.37
                          =======  =======   =======   =======   =======   =======  =======    =======   =======  =======
Total Return(3) .......... (0.74)%  41.29%  (21.52)%    42.42%   10.57%    34.11%  (11.97)%    23.67%   11.08%  (20.15)%

 RATIOS/SUPPLEMENTAL DATA

  Ratio of Operating
  Expenses to
  Average Net Assets .....  0.65%    0.71%    0.68%      0.63%    0.62%     0.61%    0.70%     0.70%(4)   0.70%    0.70%

  Ratio of Net
  Investment Income
  to Average Net Assets ..  5.63%    6.40%    5.97%      6.28%    7.04%     7.79%    7.74%     7.02%(4)   7.97%    7.99%

  Portfolio Turnover 
  Rate ...................    17%      70%      65%       138%     103%       40%      81%      48%        188%     509%

  Net Assets,
  End of Period
  (in thousands) ........$115,654  $114,647  $66,073    $89,023  $131,106  $222,118  $295,577  $233,792  $11,790  $2,006

(1)  In 1989, the fiscal year-end for American  Century Target  Maturities Trust
     was changed from December 31 to September 30.

(2)  Per-share  data in this  table  was  calculated  using the  average  shares
     outstanding during the year. Dividends and distributions shown in the table
     will be different than the actual per-share distributions to shareholders.

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

(4)  Annualized.
</TABLE>


8      FINANCIAL HIGHLIGHTS                   AMERICAN CENTURY INVESTMENTS

<TABLE>
<CAPTION>
                             FINANCIAL HIGHLIGHTS
                                  TARGET 2020

  The Financial  Highlights for each of the periods  presented have been audited
by KPMG Peat Marwick LLP, independent auditors,  whose report thereon appears in
the Fund's annual report,  which is incorporated by reference into the Statement
of Additional  Information.  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
September 30, except as noted.

                                                       1996      1995      1994      1993     1992      1991     1990(1)

PER-SHARE DATA(2)

Net AssetValue,
<S>                                                   <C>       <C>       <C>       <C>       <C>       <C>      <C>   
Beginning of Period ..................................$22.47    $15.28    $20.72    $13.63    $12.54    $9.63    $12.00

Income From Investment Operations

  Net Investment Income ..............................  1.41      1.19      1.13      1.00      0.92     0.85      0.60

  Net Realized and Unrealized Gain
  (Loss) on Investment Transactions .................. (1.88)     6.00     (6.57)     6.09      0.17     2.06     (2.97)
                                                       ------    ------    ------   ------     ------    ------  ------
  TotalFrom
  Investment Operations .............................. (0.47)     7.19     (5.44)     7.09      1.09     2.91     (2.37)
                                                       ------    ------    ------   ------     ------    ------  ------
Distributions

  From Net Investment Income ......................... (0.40)    (0.21)    (0.28)    (0.53)    (0.63)   (0.21)       --

  From Net Realized Capital Gains .................... (0.04)      --      (1.31)    (0.72)    (0.08)      --        --

  In Excess of Net Realized Gains ....................    --       --      (1.18)       --        --       --        --
                                                       ------    ------    ------   ------     ------    ------  ------
  Total Distributions ................................ (0.44)    (0.21)    (2.77)    (1.25)    (0.71)   (0.21)       --
                                                       ------    ------    ------   ------     ------    ------  ------
Reverse Share Split ..................................  0.44      0.21      2.77      1.25      0.71      0.21       --

Net Asset Value, End of Period ....................... $22.00   $22.47     $15.28    $20.72    $13.63    $12.54    $9.63
                                                      =======    =======   =======  =======   =======   =======  =======
Total Return(3) ...................................... (2.09)%   47.05%    (26.25)%   52.02%    8.69%   30.22%  (19.75)%

RATIOS/SUPPLEMENTAL DATA

  Ratio of Operating Expenses to
  Average Net Assets .................................   0.61%    0.72%     0.70%      0.70%    0.66%    0.67%  0.70%(4)

  Ratio of Net Investment Income
  to Average Net Assets ..............................   6.25%    6.24%     6.28%      6.10%    7.19%    7.50%  7.79%(4)

  Portfolio Turnover Rate ............................     47%     78%       116%       179%     144%     151%   189%

  Net Assets, End of Period
  (in thousands) ..................................... $926,319  $574,702  $58,535   $56,125   $41,793  $88,332  $53,198

(1)  From December 29, 1989,  (commencement of operations) through September 30,
     1990.

(2)  Per-share  data in this  table  was  calculated  using the  average  shares
     outstanding during the year. Dividends and distributions shown in the table
     will be different than the actual per-share distributions to shareholders.

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

(4)  Annualized.
</TABLE>


PROSPECTUS                                     FINANCIAL HIGHLIGHTS       9


                             FINANCIAL HIGHLIGHTS
                                  TARGET 2025

  The Financial  Highlights for each of the periods  presented have been audited
by KPMG Peat Marwick LLP, independent auditors,  whose report thereon appears in
the Fund's annual report,  which is incorporated by reference into the Statement
of Additional  Information.  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  period
indicated.

                                                                      1996(1)

 PER-SHARE DATA(2)

Net Asset Value, Beginning of Period ...............................  $19.85

Income From Investment Operations
  Net Investment Income ............................................    0.72

  Net Realized and Unrealized Loss on Investment Transactions ......   (2.66)
                                                                      -------
  Total From Investment Operations .................................   (1.94)
                                                                      -------
Distributions
  From Net Investment Income .......................................      --

  Reverse Share Split ..............................................      --
                                                                      -------
Net Asset Value, End of Period .....................................   $17.91
                                                                      =======
Total Return(3) ....................................................   (9.77)

RATIOS/SUPPLEMENTAL DATA

Ratio of Operating Expenses to Average Net Assets ..................  0.67%(4)

Ratio of Net Investment Income to Average Net Assets ...............  6.57%(4)

Portfolio Turnover Rate ............................................    61%

Net Assets, End of Period (in thousands) ...........................  $35,661

(1)  February 15, 1996 (inception) through September 30, 1996.

(2)  Per-share  data in this  table  was  calculated  using the  average  shares
     outstanding  during the period.  Dividends and  distributions  shown in the
     table  will  be  different  than  the  actual  per-share  distributions  to
     shareholders.

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

(4)  Annualized.


10     FINANCIAL HIGHLIGHTS                         AMERICAN CENTURY INVESTMENTS


                        INFORMATION REGARDING THE FUNDS

 INVESTMENT POLICIES OF THE FUNDS

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

INVESTMENT OBJECTIVES OF THE FUNDS

    American  Century Target  Maturities  Trust currently  consists of six Funds
with  target  maturity  years  of  2000,  2005,  2010,  2015,  2020,  and  2025,
respectively.  Each Fund will be liquidated  shortly after the conclusion of its
target  maturity  year.  Additional  funds may be introduced  from time to time.
There is no assurance that a Fund will achieve its investment objective.

    Each  Fund  seeks  to  provide  the  highest  attainable  investment  return
consistent  with  the  creditworthiness  of  U.S.  Treasury  securities  and the
professional management of reinvestment and market risks.

INVESTMENT POLICIES

    Each Fund invests  primarily in  zero-coupon  U.S.  Treasury  securities and
their  equivalents  (a "zero").  Unlike U.S.  Treasury  securities  with coupons
attached, which pay interest periodically, zeros pay no interest. Instead, these
securities are issued at a substantial  discount from their maturity value,  and
this  discount is amortized  over the life of the  security.  Investment  return
comes  from the  difference  between  the  price at which a zero is  issued  (or
purchased) and the price at which it matures (or is sold).

    To approximate  the experience an investor would have if he or she purchased
zeros  directly,  the Manager  manages each Fund to track as closely as possible
the price  behavior  of a zero with the same term to  maturity  to  correct  for
factors such as shareholder  purchases and redemptions (and related  transaction
costs)  that  differentiate  investing  in a portfolio  of zeros from  investing
directly in a zero. The Manager  executes  portfolio  transactions  necessary to
accommodate  shareholder activity each business day. To limit reinvestment risk,
the Manager adjusts each Fund's weighted average maturity ("WAM") to fall within
the  Fund's  target  maturity  year  so  that,  normally,  at  least  90% of the
securities held mature within one year of the Fund's target maturity year.

    By  adhering  to these  investment  parameters,  the  Manager  expects  that
shareholders  who hold their shares  until a Fund's  WAM*,  and who reinvest all
dividends and capital gain distributions,  will realize an investment return and
a maturity value that does not differ  substantially from the anticipated growth
rate ("AGR") and anticipated value at maturity ("AVM") calculated on the day the
shares were purchased.

    The  Manager  calculates  each Fund's AGR and AVM each day the Trust is open
for business.  AGR and AVM daily calculations assume, among other factors,  that
the Fund's expense ratio and portfolio  composition remain constant for the life
of the Fund.

    Transaction  costs,  interest  rate changes,  and the  Manager's  efforts to
improve total return by taking advantage of market  opportunities also cause the
Funds'  AGRs  and  AVMs  to  vary  from  day to  day.  Despite  these  so-called
"destabilizing"  factors,  however,  each  Fund's AGR and AVM tend to  fluctuate
within narrow ranges.  The following table shows each Fund's AVM as of September
30 for each of the past five years.  (AGRs are  illustrated  in the Statement of
Additional Information.)

     *A Fund's weighted  average maturity date can be calculated at any point in
time by adding its WAM to the current date. For example, if today were


PROSPECTUS                          INFORMATION REGARDING THE FUNDS          11


November  17,  1995,  and the  Fund's WAM were six  years,  the Fund's  weighted
average  maturity  date would be November  17,  2001.  Please note that a Fund's
weighted  average  maturity date  typically  precedes the date on which the Fund
will be liquidated. For details on Fund liquidation, see page 22.

Anticipated Value At Maturity

                   9/30/92    9/30/93    9/30/94    9/30/95    9/30/96

Target 2000        101.01     100.69     100.86     100.99     101.10

Target 2005         99.78     100.21     100.58     100.32     100.71

Target 2010        100.11     100.94     101.38     101.02     102.53

Target 2015        107.05     106.84     107.95     109.62     110.11

Target 2020        101.83     100.76     102.11     102.31     103.60

Target 2025          N/A        N/A        N/A        N/A      109.24

    The Funds' share prices and growth  rates are not  guaranteed  by the Trust,
the Manager,  or any of their affiliates.  There is no guarantee that the Funds'
AVMs will fluctuate as little in the future as they have in the past.

ZERO COUPON SECURITIES

    Zero-coupon U.S. Treasury  securities (or zeros) are the unmatured  interest
coupons and underlying  principal  portions of U.S. Treasury bonds.  Originally,
these  securities were created by  broker-dealers  who bought Treasury bonds and
deposited these securities with a custodian bank. The  broker-dealers  then sold
receipts  representing  ownership interests in the coupons or principal portions
of the bonds.  Some examples of zero-coupon  securities  sold through  custodial
receipt  programs  are CATS  (Certificates  of Accrual on Treasury  Securities),
TIGRs  (Treasury   Investment  Growth  Receipts),   and  generic  TRs  (Treasury
Receipts).

    The U.S. Treasury subsequently  introduced a program called Separate Trading
of Registered Interest and Principal of Securities ("STRIPS"),  through which it
exchanges  eligible  securities  for their  component  parts and then allows the
component parts to trade in book-entry form.  (Book-entry trading eliminates the
bank credit risks  associated  with  broker-dealer-sponsored  custodial  receipt
programs.)  STRIPS are direct  obligations  of the U.S.  government and have the
same credit risks as other U.S. Treasury securities.

    The Resolution Funding  Corporation  ("REFCORP") issues bonds whose interest
payments are  guaranteed by the U.S.  Treasury and whose  principal  amounts are
secured by zero-coupon  U.S.  Treasury  securities held in a separate  custodial
account  at the  Federal  Reserve  Bank of New York.  The  principal  amount and
maturity  date of REFCORP bonds are the same as the par amount and maturity date
of the  corresponding  zeros;  upon maturity,  REFCORP bonds are repaid from the
proceeds of the zeros. The U.S. government and its agencies may issue securities
in  zero-coupon  form.  These  securities  are  referred to as  "original  issue
zero-coupon securities."

OTHER INVESTMENTS

    As  a  Fund's  target  maturity  year   approaches,   the  Manager  may  buy
coupon-bearing  securities whose duration and price  characteristics are similar
to those of aging  zero-coupon  securities.  Towards the end of a Fund's  target
maturity  year and  until  the Fund is  liquidated,  the  proceeds  of  maturing
zero-coupon securities are invested in U.S. Treasury bills.

OTHER INVESTMENT PRACTICES, THEIR CHARACTERISTICS
AND RISKS

    The Funds are designed for investors  with  long-term  financial  goals that
correspond to one or more of the target  maturities  offered.  Investors who use
zeros or the Funds for short-term  speculative  purposes should understand that,
although most of the reinvestment risk associated with coupon-bearing  bonds has
been eliminated, the prices of zeros can fluctuate dramatically between issuance
and maturity.  When interest  rates rise, the price of a zero falls more sharply
than  the   price  of  a   coupon-bearing   security   of  the  same   maturity.
Correspondingly,  when  interest  rates  fall,  the price of a zero  rises  more
sharply than the price of a coupon-bearing security.

    Each Fund's share price will  fluctuate  daily in response to Fund  activity
and changes in the market value of its investments.  Due to the price volatility
of zeros,  redemptions made prior to a Fund's target maturity year may result in
unanticipated  capital  gains or losses for the Funds.  These  capital gains and
losses will be  distributed  to  shareholders  regardless  of whether  they have
redeemed shares.  Although  shareholders have the option to redeem shares on any
busi-


12    INFORMATION REGARDING THE FUNDS               AMERICAN CENTURY INVESTMENTS


ness day,  those seeking to minimize  their  exposure to share price  volatility
should plan to hold their shares until the end of their Fund's  target  maturity
year.

    Investing in a portfolio of zeros is different from investing  directly in a
zero.  Although the Manager  adheres to investment  policies  designed to assure
close  correspondence  between  the price  behavior of a Fund and that of a zero
with the same maturity characteristics,  precise forecasts of maturity value and
yield to maturity are not possible.

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

COUPON-BEARING U.S. TREASURY SECURITIES

    U.S.  Treasury bills,  notes,  and bonds are direct  obligations of the U.S.
Treasury.  Historically, they have involved no risk of loss of principal if held
to  maturity.  Between  issuance  and  maturity,  however,  the  prices of these
securities   change  in   response   to  changes  in  market   interest   rates.
Coupon-bearing  securities  generate  current interest  payments,  and part of a
Fund's return may come from reinvesting interest earned on these securities.

CASH MANAGEMENT

    Each Fund may invest 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.

    Up to 5% of each Fund's total assets may be invested in this manner.

SECURITIES LENDING

    The Funds may lend portfolio securities to broker-dealers to earn additional
income. This practice could result in a loss or a delay in recovering the Fund's
securities.  Securities loans are subject to guidelines  prescribed by the Board
of Trustees, which are set forth in the Statement of Additional Information.

    A Fund's loans may not exceed 33-1/3% of its total assets.

PORTFOLIO TURNOVER

    The  portfolio  turnover  rates of the  Funds  are  shown  in the  Financial
Highlights tables on pages 5-10 of this Prospectus.

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

    The  portfolio  turnover of each Fund may be higher than other  mutual funds
with similar investment  objectives.  The Funds' annual portfolio turnover rates
are not  expected  to  exceed  150% and may vary  from  year to year.  An annual
portfolio turnover rate of 100% or more is considered high. A high turnover rate
involves  correspondingly  higher transaction costs that are borne directly by a
Fund. Portfolio turnover may also affect the character of capital gains, if any,
realized and distributed by a Fund since short-term capital gains are taxable as
ordinary income.

PERFORMANCE ADVERTISING

    From  time  to  time,  the  Funds  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,
effective yield and tax-equivalent yield(for tax-exempt funds). Performance data
may be quoted  separately for the Investor Class and for the other class offered
by the Funds.

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

    A quotation of yield reflects a 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.


PROSPECTUS                          INFORMATION REGARDING THE FUNDS       13


    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.

    A tax-equivalent  yield  demonstrates the taxable yield necessary to produce
after-tax  yield  equivalent  to that of a mutual  fund which  invests in exempt
obligations.  As a  prospective  investor  in the Funds,  you  should  determine
whether your state tax-equivalent yield is likely to be higher with a taxable or
with a tax-exempt  Fund. To determine  this,  you may use the formulas  depicted
below.

    The  tax-equivalent  yield is based on each Fund's  current  state  tax-free
yield and your state income tax rate. The formula is:


        Fund's State Tax-Free Yield                     Your State
    ---------------------------------------- =         Tax-Equivalent
            100% - State Tax Rate                          Yield

    The Funds 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 Funds 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.


14      INFORMATION REGARDING THE FUNDS             AMERICAN CENTURY INVESTMENTS


               HOW TO INVEST WITH AMERICAN CENTURY INVESTMENTS

 AMERICAN CENTURY INVESTMENTS

    The Funds  offered by this  Prospectus  are 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.

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 20.

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).  These minimums
will be waived if you  establish  an automatic  investment  plan to your account
that is the  equivalent  of at least $50 per month.  See  "Automatic  Investment
Plan," page 16.

    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:

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

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

(a)  BENEFICIARY ACCOUNT NUMBER (BNF ACCT):
     2804918

(a)  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 below.

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

(a)  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.


PROSPECTUS          HOW TO INVEST WITH AMERICAN CENTURY INVESTMENTS       15


    *    Current tax year, previous tax year or rollover  designation if an IRA.
         Specify  whether 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

    1665 Charleston Road, Mountain View, California 94043

    4917 Town Center Drive, Leawood, Kansas 66211

    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 15 and indicate your account number.

IN PERSON

    You  may  make  subsequent  investments  in  person  at one of our  Investor
Centers. The locations of our four 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 as of the same date it is received,  if it is
received  before the Funds' net asset values are  calculated,  which is one hour
prior to the close of the New York Stock  Exchange  for the Funds  described  in
this Prospectus, and at the close of the Exchange for all of our other funds.
See "When Share Price is Determined," page 21.

    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


16 HOW TO INVEST WITH AMERICAN CENTURY  INVESTMENTS AMERICAN CENTURY INVESTMENTS


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 18) 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  W4-P  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 18.

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 and 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 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.


PROSPECTUS              HOW TO INVEST WITH AMERICAN CENTURY INVESTMENTS       17


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 to either bring the value
of the shares held in the account up to the minimum or to establish an automatic
investment  that is the  equivalent of at least $50 per month.  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  fund's  daily  share  prices,  receive
updates on major market indexes 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 your behalf. If you close or
re-register  the  account  from which the shares are to be  redeemed,  your open
order will be canceled.


18 HOW TO INVEST WITH AMERICAN CENTURY INVESTMENTS  AMERICAN CENTURY INVESTMENTS


    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

    Each 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 for


PROSPECTUS                HOW TO INVEST WITH AMERICAN CENTURY INVESTMENTS     19


         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 will also 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.


20 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.  Net asset  value  for the  Funds  offered  by this  Prospectus  is
determined one hour before the close of regular trading on each day that the New
York Stock  Exchange is open,  usually 2 p.m.  Central time. Net asset value for
all other American  Century funds is determined at the close of regular  trading
on 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 received by us or one of our agents one hour before the close of business
on the Exchange are effective on and will receive the price  determined one hour
before the close of the Exchange.  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  one hour  before the close of  business  on the
Exchange.

    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 prior to the close of business on the  Exchange  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.

HOW SHARE PRICE IS DETERMINED

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

    The portfolio  securities of each 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.

    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
all of the Funds and 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.


PROSPECTUS                   ADDITIONAL INFORMATION YOU SHOULD KNOW       21


 DISTRIBUTIONS

    Each  Fund  declares  an  ordinary  income  dividend  (and  a  capital  gain
distribution, if necessary) in December.

    Distributions  from net realized  securities  gains,  if any,  generally are
declared and paid once a year,  but the Funds 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 of 1940.

    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 Individual Retirement Accounts and
403(b)  plans  paid  in  cash  only  if you are at  least  59-1/2  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.

BUYING A DIVIDEND

    The timing of your investment  could have undesirable tax  consequences.  If
you open a new account or buy more shares for your  current  account just before
the day a dividend or distribution is reflected in your Fund's share price,  you
will  receive  a  portion  of your  investment  back as a  taxable  dividend  or
distribution.

REVERSE SHARE SPLITS

    At the  same  time  that the  Funds'  annual  dividends  (and  capital  gain
distributions,  if any) are  declared,  the Board of  Trustees  also  declares a
reverse share split for each Fund that exactly  offsets the per-share  amount of
the Fund's dividends (and capital gain distributions).

    Following a reverse  share split,  shareholders  who have chosen to reinvest
dividends and capital gain  distributions  own exactly the same number of shares
they owned prior to the distribution  and reverse share split.  Shareholders who
have  elected to take  distributions  in cash own fewer  shares.  Reverse  share
splits  cause the  Funds'  share  prices to behave  similarly  to the  prices of
directly held zero-coupon  securities with comparable maturity  characteristics.
Although  the  Trustees  intend to  declare a reverse  share  split  each time a
dividend or capital gain distribution is declared, they reserve the right not to
do so.

FUND LIQUIDATION

    During a Fund's target  maturity  year,  shareholders  will be asked if they
wish to receive payment of the liquidation proceeds in cash or to exchange their
shares for those of another American Century fund or another Target Fund. If the
Trust has not received instructions by December 31 of the Fund's target maturity
year,  shares will be exchanged  for shares of American  Century-Benham  Capital
Preservation  Fund  ("CPF") or, if CPF is not  available,  for shares of another
money market fund in the American Century family of funds.

TAXES

    Each 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

    Zero-coupon  securities  purchased  by the Funds accrue  interest  (commonly
referred to as "imputed  income") for federal  income tax  purposes  even though
zeros do not pay current interest. The Funds must distribute this imputed income
to shareholders as ordinary income dividends, which are subject to federal taxes
but exempt from state taxes.


22 ADDITIONAL INFORMATION YOU SHOULD KNOW           AMERICAN CENTURY INVESTMENTS


    Distributions of net investment income and net short-term  capital gains are
taxable to you as ordinary income, except as described below. The dividends from
net income of the Funds do not qualify for the 70% dividends-received  deduction
for  corporations  since  they  are  derived  from  interest  income.  Dividends
representing  income derived from tax-exempt  bonds generally  retain the bonds'
tax-exempt character in a shareholder's hands.  Distributions from net long-term
capital gains 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 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 capital gain 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.

    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 a 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 and its  Regulations,  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 a 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 long-term if shareholders have held
such  shares for a period of more than one year.  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 Funds are series of the American  Century Target  Maturities  Trust (the
"Trust").  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
Funds,  American Century  Investment  Management,  Inc. serves as the investment
manager of the Funds. Its principal place of business is American Century Tower,
4500 Main Street,  Kansas City,  Missouri 64111.  The Manager has been providing
investment advisory


PROSPECTUS                ADDITIONAL INFORMATION YOU SHOULD KNOW              23


services to investment companies and institutional  clients since it was founded
in 1958.

    The Manager supervises and manages the investment portfolio of each 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
manage the assets of the Funds.  The teams meet  regularly  to review  portfolio
holdings and to discuss purchase and sale activity. The teams adjust holdings in
the Funds'  portfolios  and the  Funds'  asset mix as they deem  appropriate  in
pursuit  of the  Funds'  investment  objectives.  Individual  portfolio  manager
members  of the  teams may also  adjust  portfolio  holdings  of the Funds or of
sectors of the Funds as necessary between team meetings.

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

    CASEY COLTON, Portfolio Manager, joined the Manager in 1990, as a Municipal
Analyst and has  been a member of the team that manages the Target funds since
January 1996. Mr. Colton is a Chartered Financial Analyst.

    DAVID  SCHROEDER,  Vice President,  joined the Manager in 1990, and has been
primarily  responsible for the day-to-day  operations of each of the Funds since
July, 1990.

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

    For the services  provided to the Funds,  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  mutual  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 each of the Funds is an
annual rate of 0.29% of the average net assets of each Fund.  The Complex Fee is
currently  an annual  rate of 0.30% of the  average  net  assets  of each  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 Funds pay 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 a Fund by the
aggregate average daily closing value of a 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 Funds and the  Manager  have  adopted  a Code of Ethics  that  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 those Funds.

TRANSFER AND ADMINISTRATIVE SERVICES

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

    The Funds  charge no sales  commissions,  or "loads," of any kind.  However,
investors  who do not choose to purchase or sell Fund shares  directly  from the
transfer   agent  may   purchase   or  sell  Fund  shares   through   registered
broker-dealers and other qualified service  providers,  who may charge investors
fees for their services. These broker-dealers and service


24  ADDITIONAL INFORMATION YOU SHOULD KNOW          AMERICAN CENTURY INVESTMENTS


providers  generally  provide  shareholder,   administrative  and/or  accounting
services which would otherwise be provided by the transfer agent. To accommodate
these  investors,  the Manager and its affiliates  have entered into  agreements
with some  broker-dealers and service providers to provide these services.  Fees
for such services are borne  normally by the Funds at the rates normally paid to
the transfer agent, which would otherwise provide the services.

    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.

DISTRIBUTION OF FUND SHARES

    The Funds' shares are distributed by American Century  Investment  Services,
Inc. (the  "Distributor"),  a registered  broker-dealer  and an affiliate of the
Manager.  The Manager pays all  expenses  for  promoting  and  distributing  the
Investor Class of Fund shares offered by this Prospectus.  The Investor Class of
shares 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.

FURTHER INFORMATION ABOUT AMERICAN CENTURY

    American  Century Target  Maturities  Trust was organized as a Massachusetts
business  trust on  November  8,  1984.  The  Trust is a  diversified,  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 Funds are individual series of the Trust which issues shares with no par
value.  The assets belonging to each series of shares are held separately by the
custodian and in effect each series is a separate  fund.  The Funds do not issue
share certificates.

    American  Century  offers two  classes of each of the Funds  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 other classes of shares are 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.  The other  classes have  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  other  classes  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


PROSPECTUS                          ADDITIONAL INFORMATION YOU SHOULD KNOW    25


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 1940 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.  We  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 A FUND ONLY IN
THOSE STATES WHERE THE FUND'S SHARES HAVE BEEN REGISTERED OR OTHERWISE QUALIFIED
FOR SALE. A FUND WILL NOT ACCEPT  APPLICATIONS  FROM PERSONS  RESIDING IN STATES
WHERE THE FUND'S SHARES ARE NOT REGISTERED.


26      INFORMATION REGARDING THE FUNDS        AMERICAN CENTURY INVESTMENTS


                                     NOTES


                                                                  NOTES       27


                                     NOTES


28      INFORMATION REGARDING THE FUNDS                               NOTES


                                     NOTES


                                                                  NOTES       29


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

INTERNET: www.americancentury.com

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

9708           [recycled logo]
SH-BKT-9212       Recycled
<PAGE>
                                   PROSPECTUS

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

                                SEPTEMBER 2, 1997

                                     BENHAM

                                  GROUP(reg.tm)

                                   Target 2000
                                   Target 2005
                                   Target 2010
                                   Target 2015
                                   Target 2020
                                   Target 2025

ADVISOR CLASS

[front cover]

                         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--FAMILY OF FUNDS

        Benham                American Century       Twentieth Century(reg. tm)
        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

     Target 2000 
     Target 2005 
     Target 2010 
     Target 2015 
     Target 2020 
     Target 2025


                                  PROSPECTUS

                               SEPTEMBER 2, 1997

                    Target 2000 * Target 2005 * Target 2010 
                    Target 2015 * Target 2020 * Target 2025

                                 ADVISOR CLASS

                   AMERICAN CENTURY TARGET MATURITIES TRUST

    American  Century  Target  Maturities  Trust is 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.  Six of the funds
from our  Benham  Group that  invest  primarily  in  zero-coupon  U.S.  Treasury
securities,  are described in this Prospectus.  Their investment  objectives are
listed on page 2 of this  Prospectus.  The other funds are described in separate
prospectuses.

    Each 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 Funds 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 September 2, 1997, 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 Internet: 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).

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 OBJECTIVES OF THE FUNDS

 AMERICAN CENTURY - BENHAM TARGET MATURITIES TRUST: 2000
 AMERICAN CENTURY - BENHAM TARGET MATURITIES TRUST: 2005
 AMERICAN CENTURY - BENHAM TARGET MATURITIES TRUST: 2010
 AMERICAN CENTURY - BENHAM TARGET MATURITIES TRUST: 2015
 AMERICAN CENTURY - BENHAM TARGET MATURITIES TRUST: 2020
 AMERICAN CENTURY - BENHAM TARGET MATURITIES TRUST: 2025

    Each  Fund  seeks  to  provide  the  highest  attainable  investment  return
consistent  with  the  creditworthiness  of  U.S.  Treasury  securities  and the
professional management of reinvestment and market risks.

    Each Fund invests primarily in zero-coupon U.S. Treasury securities and will
be liquidated shortly after the conclusion of its target maturity year. For more
information   about  this  unique   feature,   please  see   "Distributions-Fund
Liquidation," on page 17.

    An investment in the Funds is neither insured nor guaranteed by the U.S.
Government.


  There is no assurance that the Funds will achieve their respective investment
                                  objectives.

NO  PERSON  IS  AUTHORIZED  BY THE  FUNDS  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 FUNDS, AND YOU SHOULD NOT RELY
ON ANY OTHER INFORMATION OR REPRESENTATION.


2      INVESTMENT OBJECTIVES                  AMERICAN CENTURY INVESTMENTS


                               TABLE OF CONTENTS

 Investment Objectives of the Funds .......................................  2
 Transaction and Operating Expense Table ..................................  4
 Performance Information of Other Class ...................................  5
 INFORMATION REGARDING THE FUNDS
 Investment Policies of the Funds ......................................... 11
    Investment Objectives of the Funds .................................... 11
    Investment Policies ................................................... 11
    Zero Coupon Securities ................................................ 12
    Other Investments ..................................................... 12
 Other Investment Practices, Their Characteristics
 and Risks ................................................................ 12
    Coupon-Bearing U.S. Treasury Securities ............................... 13
    Cash Management ....................................................... 13
    Securities Lending .................................................... 13
    Portfolio Turnover .................................................... 13
 Performance Advertising .................................................. 13

 HOW TO INVEST WITH AMERICAN CENTURY INVESTMENTS
 How to Purchase and Sell American
    Century Funds ......................................................... 15
 How to Exchange from One American
    Century Fund to Another ............................................... 15
 How to Redeem Shares ..................................................... 15
 Telephone Services ....................................................... 15
    Investors Line ........................................................ 15

 ADDITIONAL INFORMATION YOU SHOULD KNOW
 Share Price .............................................................. 16
    When Share Price Is Determined ........................................ 16
    How Share Price Is Determined ......................................... 16
    Where to Find Information About Share Price ........................... 16
 Distributions ............................................................ 17
    Buying a Dividend ..................................................... 17
    Reverse Share Splits .................................................. 17
    Fund Liquidation ...................................................... 17
 Taxes .................................................................... 17
    Tax-Deferred Accounts ................................................. 17
    Taxable Accounts ...................................................... 17
 Management ............................................................... 18
    Investment Management ................................................. 18
    Code of Ethics ........................................................ 19
    Transfer and Administrative Services .................................. 19
 Distribution of Fund Shares .............................................. 20
    Service and Distribution Fees ......................................... 20
 Further Information About American Century ............................... 20


PROSPECTUS                                        TABLE OF CONTENTS       3


                    TRANSACTION AND OPERATING EXPENSE TABLE

                                                      Target  2000,  Target 2005
                                                      Target  2010,  Target 2015
                                                      Target  2020,  Target 2025

 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) .............................................0.34%

12b-1 Fees(2) ..................................................0.50%

Other Expenses .................................................0.01%

Total Fund Operating Expenses ..................................0.85%

 EXAMPLE:

You would pay the following expenses                  1 year    $   9
on a $1,000 investment, assuming a 5%                3 years       27
annual return and redemption at the end              5 years       47
of each time period:                                10 years      105

(1)A portion of the  management fee may be paid by American  Century  Investment
   Management,  Inc. (the "Manager") 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 19.

(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 20.

  The purpose of the above 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 of the American  Century
funds  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 Funds
offer one other class of shares  which is  primarily  made  available  to retail
investors. The other class 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 the
other  classes.  For  additional  information  about the  various  classes,  see
"Further Information About American Century," page 20.


4    TRANSACTION AND OPERATING EXPENSE TABLE   AMERICAN CENTURY INVESTMENTS

<TABLE>
<CAPTION>
                    PERFORMANCE INFORMATION OF OTHER CLASS
                                  TARGET 2000

  The Advisor Class of the Funds was established September 2, 1997; therefore no
shares had been issued prior to the Fund's prior 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 Fund for the time periods presented,  the Fund's
performance information would be lower as a result of the higher expenses.

  The  performance  information  for each of the  periods  presented  have  been
audited by KPMG Peat Marwick LLP,  independent  auditors,  whose report  thereon
appears in the Fund's annual report, which is incorporated by reference into the
Statement of  Additional  Information.  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 September 30, except as noted.

                           1996      1995      1994      1993      1992      1991      1990    1989(1)    1988      1987

 PER-SHARE DATA(2)

Net Asset
Value,
<S>                       <C>       <C>      <C>       <C>       <C>       <C>       <C>       <C>       <C>      <C>   
Beginning of Period ......$76.86    $66.93   $72.40    $62.16    $52.67    $43.11    $42.79    $37.16    $33.33   $35.44

Income From
Investment Operations

  Net Investment Income ..  4.75      4.37     3.99      3.94      3.90      3.69      3.40      2.36      2.94     2.68

  Net Realized and
  Unrealized Gain
  (Loss) on Investment
  Transactions ........... (1.66)     5.56    (9.46)     6.30      5.59      5.87     (3.08)     3.27      0.89   (4.79)
                           ------    ------   ------    ------    ------    ------    ------    ------    ------  ------
  Total From
  Investment Operations ..  3.09      9.93    (5.47)    10.24      9.49      9.56      0.32      5.63      3.83   (2.11)
                           ------    ------   ------    ------    ------    ------    ------    ------    ------  ------
Distributions

  From Net Investment
  Income ................. (3.94)    (3.42)   (3.25)    (2.34)    (2.22)    (2.09)    (2.35)      --     (2.23)   (4.72)

  From Net Realized
  Capital Gains ..........    --        --    (2.95)    (1.83)    (0.16)       --     (0.10)      --        --       --

  In Excess of Net
  Realized Gains .........    --      --     (1.20)       --        --        --       --         --       --        --
                           ------    ------   ------    ------    ------    ------    ------    ------    ------  ------
  Total Distributions .... (3.94)   (3.42)   (7.40)    (4.17)    (2.38)    (2.09)    (2.45)       --     (2.23)   (4.72)
                           ------    ------   ------    ------    ------    ------    ------    ------    ------  ------
Reverse Share Split ......  3.94     3.42     7.40      4.17      2.38      2.09      2.45        --      2.23     4.72
                           ------    ------   ------    ------    ------    ------    ------    ------    ------  ------
Net Asset Value,
End of Period ............ $79.95   $76.86   $66.93    $72.40    $62.16    $52.67    $43.11     $42.79   $37.16   $33.33
 .                         =======   =======  =======   =======   =======   =======   =======   =======  =======  =======
Total Return(3) ..........  4.01%   14.84%   (7.54)%   16.46%    18.02%    22.18%     0.75%     15.15%   11.49%  (5.95)%

 RATIOS/SUPPLEMENTAL DATA

  Ratio of Operating
  Expenses to
  Average Net Assets .....  0.53%   0.63%    0.59%      0.60%     0.66%     0.66%     0.70%     0.70%(4)  0.70%    0.70%

  Ratio of Net Investment
  Income to Average
  Net Assets .............  5.99%   6.13%    5.74%      5.94%     6.90%     7.67%     7.84%     7.81%(4)   8.33%   8.08%

  Portfolio Turnover 
  Rate ...................    29%     53%      89%        77%       93%       67%       79%       49%       163%     73%

  Net Assets, End
  of Period
  (in thousands) .........$267,757 $294,736 $243,895  $291,418  $190,063  $89,655   $53,216      $34,820  $14,073 $6,285

(1)  In 1989, the fiscal year-end for American  Century Target  Maturities Trust
     was changed from December 31 to September 30.

(2)  Per-share  data in this  table  was  calculated  using the  average  shares
     outstanding during the year. Dividends and distributions shown in the table
     will be different than the actual per-share distributions to shareholders.

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

(4)  Annualized.
</TABLE>


PROSPECTUS                   PERFORMANCE INFORMATION OF OTHER CLASS       5

<TABLE>
<CAPTION>
                    PERFORMANCE INFORMATION OF OTHER CLASS
                                  TARGET 2005

  The Advisor Class of the Funds was established September 2, 1997; therefore no
shares had been issued prior to the Fund's prior 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 Fund for the time periods presented,  the Fund's
performance information would be lower as a result of the higher expenses.

  The  performance  information  for each of the  periods  presented  have  been
audited by KPMG Peat Marwick LLP,  independent  auditors,  whose report  thereon
appears in the Fund's annual report, which is incorporated by reference into the
Statement of  Additional  Information.  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 September 30, except as noted.

                           1996      1995      1994      1993      1992      1991      1990    1989(1)    1988      1987

 PER-SHARE DATA(2)

Net Asset
Value,
<S>                      <C>       <C>       <C>       <C>       <C>       <C>        <C>      <C>       <C>       <C>   
Beginning of Period .....$56.61    $45.22    $51.84    $41.18    $35.13    $27.74     $28.61   $24.36    $21.28    $23.74

Income From
Investment Operations

  Net Investment Income .  3.50    3.33      3.11     2.90      2.69      2.47      2.27      1.54      1.90     1.77

  Net Realized and
  Unrealized Gain
  (Loss) on Investment
  Transactions .......... (2.28)    8.06    (9.73)    7.76      3.36      4.92     (3.14)      2.71      1.18   (4.23)
                          ------   ------   ------   ------    ------    ------    ------     ------    ------  ------
  Total From
  Investment Operations .  1.22     11.39   (6.62)   10.66      6.05      7.39     (0.87)      4.25      3.08   (2.46)
                          ------   ------   ------   ------    ------    ------    ------     ------    ------  ------
Distributions

  From Net
  Investment Income ..... (2.06)   (2.41)   (2.70)   (2.51)    (1.75)    (0.86)    (1.60)        --     (1.53)   (3.52)

  From Net Realized
  Capital Gains ......... (0.58)   (0.67)   (8.47)   (1.01)    (0.37)       --     (0.07)        --       --     (0.13)
                          ------   ------   ------   ------    ------    ------    ------     ------    ------  ------
  Total Distributions ... (2.64)   (3.08)  (11.17)   (3.52)    (2.12)    (0.86)    (1.67)        --     (1.53)   (3.65)
                          ------   ------   ------   ------    ------    ------    ------     ------    ------  ------
Reverse Share Split .....  2.64     3.08    11.17     3.52     2.12       0.86      1.67         --      1.53     3.65
                          ------   ------   ------   ------    ------    ------    ------     ------    ------  ------
Net Asset Value,
End of Period ........... $57.83  $56.61   $45.22    $51.84   $41.18    $35.13    $27.74      $28.61    $24.36   $21.28
                         =======  =======  =======  =======   =======   =======   =======    =======    =======  =======
Total Return(3) .........  2.15%   25.16%  (12.75)%  25.89%   17.22%    26.64%    (3.04)%     17.45%    14.48%  (10.36)%

 RATIOS/SUPPLEMENTAL DATA

  Ratio of Operating
  Expenses to
  Average Net Assets ....  0.58%    0.71%   0.64%     0.62%    0.63%     0.70%     0.70%      0.70%(4)   0.70%     0.70%

  Ratio of Net Investment
  Income to Average
  Net Assets ............  6.05%    6.58%   6.37%     6.44%    7.27%     7.80%     7.93%      7.66%(4)   8.44%     8.31%

  Portfolio Turnover 
  Rate ..................    31%      34%      68%      50%      64%       85%       186%         72%       27%       68%

  Net Assets,
  End of Period
  (in thousands) .......$238,864  $183,452  $96,207  $149,890  $168,697  $161,388  $46,303     $24,955   $8,948   $3,680

(1)  In 1989, the fiscal year-end for American  Century Target  Maturities Trust
     was changed from December 31 to September 30.

(2)  Per-share  data in this  table  was  calculated  using the  average  shares
     outstanding during the year. Dividends and distributions shown in the table
     will be different than the actual per-share distributions to shareholders.

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

(4)  Annualized.
</TABLE>


6     PERFORMANCE INFORMATION OF OTHER CLASS   AMERICAN CENTURY INVESTMENTS

<TABLE>
<CAPTION>
                    PERFORMANCE INFORMATION OF OTHER CLASS

                                  TARGET 2010

  The Advisor Class of the Funds was established September 2, 1997; therefore no
shares had been issued prior to the Fund's prior 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 Fund for the time periods presented,  the Fund's
performance information would be lower as a result of the higher expenses.

  The  performance  information  for each of the  periods  presented  have  been
audited by KPMG Peat Marwick LLP,  independent  auditors,  whose report  thereon
appears in the Fund's annual report, which is incorporated by reference into the
Statement of  Additional  Information.  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 September 30, except as noted.

                           1996      1995      1994      1993      1992      1991      1990    1989(1)    1988      1987

 PER-SHARE DATA(2)

Net Asset
Value,
<S>                       <C>       <C>       <C>      <C>       <C>       <C>       <C>       <C>       <C>      <C>   
Beginning of Period ......$42.14    $31.67    $38.13   $28.53    $25.08    $19.18    $20.59    $17.31    $14.96   $17.65

Income From
Investment Operations

  Net Investment Income .. 2.58      2.41      2.24      2.05      1.88      1.72     1.61       1.08      1.29     1.23

  Net Realized and
  Unrealized Gain
  (Loss) on Investment
  Transactions ...........(2.25)     8.06     (8.70)     7.55      1.57      4.18    (3.02)      2.20      1.06   (3.92)
                          ------    ------    ------    ------    ------    ------   ------     ------    ------  ------
  Total From
  Investment Operations .. 0.33     10.47     (6.46)     9.60      3.45      5.90    (1.41)      3.28      2.35   (2.69)
                          ------    ------    ------    ------    ------    ------   ------     ------    ------  ------
Distributions

  From Net
  Investment Income ......(1.57)   (1.48)     (1.46)    (1.58)    (1.14)    (1.05)   (1.50)        --     (0.42)  (0.90)

  From Net Realized
  Capital Gains ..........   --    (0.48)     (4.31)    (1.14)       --        --    (0.09)        --        --      --
                          ------    ------    ------    ------    ------    ------   ------     ------    ------  ------
  Total Distributions ....(1.57)   (1.96)     (5.77)    (2.72)    (1.14)    (1.05)   (1.59)        --     (0.42)  (0.90)
                          ------    ------    ------    ------    ------    ------   ------     ------    ------  ------
Reverse Share Split ...... 1.57     1.96       5.77      2.72      1.14      1.05     1.59         --      0.42    0.90
                          ------    ------    ------    ------    ------    ------   ------     ------    ------  ------
Net Asset Value,
End of Period ...........$42.47   $42.14     $31.67    $38.13    $28.53    $25.08    $19.18    $20.59    $17.31   $14.96
                         =======  =======   =======   =======    =======   =======  =======   =======   =======  =======
Total Return(3) ......... 0.78%    33.06%   (16.92)%   33.61%    13.76%    30.76%   (6.85)%    18.95%    15.71% (15.24)%

RATIOS/SUPPLEMENTAL DATA

  Ratio of Operating
  Expenses to
  Average Net Assets .... 0.67%    0.71%     0.68%      0.66%     0.70%     0.70%     0.70%   0.70%(4)    0.70%    0.70%

  Ratio of Net Investment
  Income to Average
  Net Assets ............ 5.98%    6.56%     6.35%      6.32%     7.20%     7.73%     7.82%   7.34%(4)    8.11%    8.13%

  Portfolio
  Turnover Rate .........   24%      26%       35%       132%       95%      131%      191%      88%       259%      84%

  Net Assets,
  End of Period
  (in thousands) .......$111,117   $95,057   $46,312   $70,551   $55,565   $47,661   $37,222   $42,439   $9,617   $9,297

(1)  In 1989, the fiscal year-end for American  Century Target  Maturities Trust
     was changed from December 31 to September 30.

(2)  Per-share  data in this  table  was  calculated  using the  average  shares
     outstanding during the year. Dividends and distributions shown in the table
     will be different than the actual per-share distributions to shareholders.

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

(4)  Annualized.
</TABLE>


PROSPECTUS                   PERFORMANCE INFORMATION OF OTHER CLASS       7

<TABLE>
<CAPTION>
                    PERFORMANCE INFORMATION OF OTHER CLASS

                                  TARGET 2015

  The Advisor Class of the Funds was established September 2, 1997; therefore no
shares had been issued prior to the Fund's prior 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 Fund for the time periods presented,  the Fund's
performance information would be lower as a result of the higher expenses.

  The  performance  information  for each of the  periods  presented  have  been
audited by KPMG Peat Marwick LLP,  independent  auditors,  whose report  thereon
appears in the Fund's annual report, which is incorporated by reference into the
Statement of  Additional  Information.  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 September 30, except as noted.

                           1996      1995      1994      1993      1992      1991      1990    1989(1)    1988      1987

 PER-SHARE DATA(2)

Net Asset
Value,
<S>                       <C>       <C>       <C>      <C>       <C>        <C>      <C>       <C>       <C>      <C>   
Beginning of Period ......$32.20    $22.79    $29.04   $20.39    $18.44     $13.75   $15.62    $12.63    $11.37   $14.24

Income From
Investment Operations

  Net Investment Income ..  1.85      1.71     1.57      1.46      1.33      1.26      1.18      0.79      0.94     0.90

  Net Realized and
  Unrealized Gain
  (Loss) on Investment
  Transactions ........... (2.09)     7.70    (7.82)     7.19      0.62      3.43     (3.05)     2.20      0.32   (3.77)
                          ------    ------    ------    ------    ------    ------   ------     ------    ------  ------
  Total From
  Investment Operations .. (0.24)     9.41    (6.25)     8.65      1.95      4.69     (1.87)     2.99      1.26   (2.87)
                          ------    ------    ------    ------    ------    ------   ------     ------    ------  ------
Distributions

  From Net
  Investment Income ...... (1.28)    (0.87)   (1.19)    (1.45)   (1.23)     (0.97)   (0.50)        --     (0.55)  (0.22)

  From Net Realized
  Capital Gains .......... (1.61)       --    (7.08)    (0.34)      --         --    (0.01)        --        --      --

  In Excess of Net
  Realized Gains .........    --        --    (0.37)       --       --         --       --         --        --      --
                          ------    ------    ------    ------    ------    ------   ------     ------    ------  ------
  Total Distributions .... (2.89)    (0.87)   (8.64)    (1.79)    (1.23)    (0.97)   (0.51)        --      (0.55) (0.22)
                          ------    ------    ------    ------    ------    ------   ------     ------    ------  ------
Reverse Share Split ......  2.89      0.87     8.64      1.79      1.23      0.97     0.51         --       0.55   0.22
                          ------    ------    ------    ------    ------    ------   ------     ------    ------  ------
Net Asset Value,
End of Period ............ $31.96   $32.20   $22.79     $29.04   $20.39    $18.44   $13.75      $15.62    $12.63  $11.37
                         =======  =======   =======   =======    =======   =======  =======   =======   =======  =======
Total Return(3) .......... (0.74)%  41.29%  (21.52)%    42.42%   10.57%    34.11%  (11.97)%    23.67%   11.08%  (20.15)%

 RATIOS/SUPPLEMENTAL DATA

  Ratio of Operating
  Expenses to
  Average Net Assets .....  0.65%    0.71%    0.68%      0.63%    0.62%     0.61%    0.70%     0.70%(4)   0.70%    0.70%

  Ratio of Net
  Investment Income
  to Average Net Assets ..  5.63%    6.40%    5.97%      6.28%    7.04%     7.79%    7.74%     7.02%(4)   7.97%    7.99%

  Portfolio Turnover 
  Rate ...................    17%      70%      65%       138%     103%       40%      81%      48%        188%     509%

  Net Assets,
  End of Period
  (in thousands) ........$115,654  $114,647  $66,073    $89,023  $131,106  $222,118  $295,577  $233,792  $11,790  $2,006

(1)  In 1989, the fiscal year-end for American  Century Target  Maturities Trust
     was changed from December 31 to September 30.

(2)  Per-share  data in this  table  was  calculated  using the  average  shares
     outstanding during the year. Dividends and distributions shown in the table
     will be different than the actual per-share distributions to shareholders.

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

(4)  Annualized.
</TABLE>


8     PERFORMANCE INFORMATION OF OTHER CLASS   AMERICAN CENTURY INVESTMENTS

<TABLE>
<CAPTION>
                    PERFORMANCE INFORMATION OF OTHER CLASS

                                  TARGET 2020

  The Advisor Class of the Funds was established September 2, 1997; therefore no
shares had been issued prior to the Fund's prior 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 Fund for the time periods presented,  the Fund's
performance information would be lower as a result of the higher expenses.

  The  performance  information  for each of the  periods  presented  have  been
audited by KPMG Peat Marwick LLP,  independent  auditors,  whose report  thereon
appears in the Fund's annual report, which is incorporated by reference into the
Statement of  Additional  Information.  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 September 30, except as noted.

                                                       1996      1995      1994      1993     1992      1991     1990(1)

PER-SHARE DATA(2)

Net Asset
Value,
<S>                                                   <C>       <C>       <C>       <C>       <C>       <C>      <C>   
Beginning of Period ................................. $22.47    $15.28    $20.72    $13.63    $12.54    $9.63    $12.00

Income From Investment Operations

  Net Investment Income .............................   1.41      1.19      1.13      1.00      0.92     0.85      0.60

  Net Realized and Unrealized
  Gain (Loss) on Investment Transactions ............  (1.88)     6.00     (6.57)     6.09      0.17     2.06     (2.97)
                                                       ------    ------    ------   ------     ------    ------  ------
  Total From
  Investment Operations .............................  (0.47)     7.19     (5.44)     7.09      1.09     2.91     (2.37)
                                                       ------    ------    ------   ------     ------    ------  ------
Distributions

  From Net Investment Income ........................  (0.40)    (0.21)    (0.28)    (0.53)    (0.63)   (0.21)       --

  From Net Realized Capital Gains ...................  (0.04)      --      (1.31)    (0.72)    (0.08)      --        --

  In Excess of Net Realized Gains ...................     --       --      (1.18)       --        --       --        --
                                                       ------    ------    ------   ------     ------    ------  ------
  Total Distributions ...............................  (0.44)    (0.21)    (2.77)    (1.25)    (0.71)   (0.21)       --
                                                       ------    ------    ------   ------     ------    ------  ------
Reverse Share Split .................................   0.44      0.21      2.77      1.25      0.71      0.21       --
                                                       ------    ------    ------   ------     ------    ------  ------
Net Asset Value, End of Period ......................  $22.00   $22.47     $15.28    $20.72    $13.63    $12.54    $9.63
                                                      =======    =======   =======  =======   =======   =======  =======
Total Return(3) .....................................  (2.09)%   47.05%    (26.25)%   52.02%    8.69%   30.22%  (19.75)%

RATIOS/SUPPLEMENTAL DATA

  Ratio of Operating Expenses to
  Average Net Assets ................................    0.61%    0.72%     0.70%      0.70%    0.66%    0.67%  0.70%(4)

  Ratio of Net Investment Income
  to Average Net Assets .............................    6.25%    6.24%     6.28%      6.10%    7.19%    7.50%  7.79%(4)

  Portfolio Turnover Rate ...........................      47%     78%       116%       179%     144%     151%   189%

  Net Assets, End of Period
  (in thousands) ....................................  $926,319  $574,702  $58,535   $56,125   $41,793  $88,332  $53,198

(1)  From December 29, 1989,  (commencement of operations) through September 30,
     1990.

(2)  Per-share  data in this  table  was  calculated  using the  average  shares
     outstanding during the year. Dividends and distributions shown in the table
     will be different than the actual per-share distributions to shareholders.

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

(4)  Annualized.
</TABLE>


PROSPECTUS                   PERFORMANCE INFORMATION OF OTHER CLASS       9


                    PERFORMANCE INFORMATION OF OTHER CLASS

                                  TARGET 2025

  The Advisor Class of the Funds was established September 2, 1997; therefore no
shares had been issued prior to the Fund's prior 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 Fund for the time periods presented,  the Fund's
performance information would be lower as a result of the higher expenses.

  The  performance  information  for each of the  periods  presented  have  been
audited by KPMG Peat Marwick LLP,  independent  auditors,  whose report  thereon
appears in the Fund's annual report, which is incorporated by reference into the
Statement of  Additional  Information.  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 September 30, except as noted.

                                                                      1996(1)

 PER-SHARE DATA(2)

Net Asset Value, Beginning of Period ...............................  $19.85

Income From Investment Operations
  Net Investment Income ............................................    0.72

  Net Realized and Unrealized Loss on Investment Transactions ......   (2.66)
                                                                      -------
  Total From Investment Operations .................................   (1.94)
                                                                      -------
Distributions
  From Net Investment Income .......................................      --

  Reverse Share Split ..............................................      --
                                                                      -------
Net Asset Value, End of Period .....................................   $17.91
                                                                      =======
Total Return(3) ....................................................   (9.77)

RATIOS/SUPPLEMENTAL DATA

Ratio of Operating Expenses to Average Net Assets ..................  0.67%(4)

Ratio of Net Investment Income to Average Net Assets ...............  6.57%(4)

Portfolio Turnover Rate ............................................    61%

Net Assets, End of Period (in thousands) ...........................  $35,661

(1)  February 15, 1996 (inception) through September 30, 1996.

(2)  Per-share  data in this  table  was  calculated  using the  average  shares
     outstanding  during the period.  Dividends and  distributions  shown in the
     table  will  be  different  than  the  actual  per-share  distributions  to
     shareholders.

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

(4)  Annualized.


10     PERFORMANCE INFORMATION OF OTHER CLASS   AMERICAN CENTURY INVESTMENTS


                        INFORMATION REGARDING THE FUNDS

 INVESTMENT POLICIES OF THE FUNDS

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

INVESTMENT OBJECTIVES OF THE FUNDS

    American  Century Target  Maturities  Trust currently  consists of six Funds
with  target  maturity  years  of  2000,  2005,  2010,  2015,  2020,  and  2025,
respectively.  Each Fund will be liquidated  shortly after the conclusion of its
target  maturity  year.  Additional  funds may be introduced  from time to time.
There is no assurance that a Fund will achieve its investment objective.

    Each  Fund  seeks  to  provide  the  highest  attainable  investment  return
consistent  with  the  creditworthiness  of  U.S.  Treasury  securities  and the
professional management of reinvestment and market risks.

INVESTMENT POLICIES

    Each Fund invests  primarily in  zero-coupon  U.S.  Treasury  securities and
their  equivalents  (a "zero").  Unlike U.S.  Treasury  securities  with coupons
attached, which pay interest periodically, zeros pay no interest. Instead, these
securities are issued at a substantial  discount from their maturity value,  and
this  discount is amortized  over the life of the  security.  Investment  return
comes  from the  difference  between  the  price at which a zero is  issued  (or
purchased) and the price at which it matures (or is sold).

    To approximate  the experience an investor would have if he or she purchased
zeros  directly,  the Manager  manages each Fund to track as closely as possible
the price  behavior  of a zero with the same term to  maturity  to  correct  for
factors such as shareholder  purchases and redemptions (and related  transaction
costs)  that  differentiate  investing  in a portfolio  of zeros from  investing
directly in a zero. The Manager  executes  portfolio  transactions  necessary to
accommodate  shareholder activity each business day. To limit reinvestment risk,
the Manager adjusts each Fund's weighted average maturity ("WAM") to fall within
the  Fund's  target  maturity  year  so  that,  normally,  at  least  90% of the
securities held mature within one year of the Fund's target maturity year.

    By  adhering  to these  investment  parameters,  the  Manager  expects  that
shareholders  who hold their shares  until a Fund's  WAM*,  and who reinvest all
dividends and capital gain distributions,  will realize an investment return and
a maturity value that does not differ  substantially from the anticipated growth
rate ("AGR") and anticipated value at maturity ("AVM") calculated on the day the
shares were purchased.

    The  Manager  calculates  each Fund's AGR and AVM each day the Trust is open
for business.  AGR and AVM daily calculations assume, among other factors,  that
the Fund's expense ratio and portfolio  composition remain constant for the life
of the Fund.

    Transaction  costs,  interest  rate changes,  and the  Manager's  efforts to
improve total return by taking advantage of market  opportunities also cause the
Funds' AGRs and AVMs to vary from day to day.

    *A Fund's weighted  average  maturity date can be calculated at any point in
time by adding its WAM to the current date. For example,  if today were November
17,  1995,  and the  Fund's  WAM were six years,  the  Fund's  weighted  average
maturity  date would be November  17, 2001.  Please note that a Fund's  weighted
average  maturity  date  typically  precedes  the date on which the Fund will be
liquidated. For details on Fund liquidation, see page 17.


PROSPECTUS                          INFORMATION REGARDING THE FUNDS       11


     Despite these so-called  "destabilizing" factors,  however, each Fund's AGR
and AVM tend to fluctuate  within narrow ranges.  The following table shows each
Fund's  AVM as of  September  30 for  each of the past  five  years.  (AGRs  are
illustrated in the Statement of Additional Information.)

Anticipated Value At Maturity

                   9/30/92    9/30/93    9/30/94    9/30/95    9/30/96

Target 2000        101.01     100.69     100.86     100.99     101.10

Target 2005         99.78     100.21     100.58     100.32     100.71

Target 2010        100.11     100.94     101.38     101.02     102.53

Target 2015        107.05     106.84     107.95     109.62     110.11

Target 2020        101.83     100.76     102.11     102.31     103.60

Target 2025          N/A        N/A        N/A        N/A      109.24

    The Funds' share prices and growth  rates are not  guaranteed  by the Trust,
the Manager,  or any of their affiliates.  There is no guarantee that the Funds'
AVMs will fluctuate as little in the future as they have in the past.

ZERO COUPON SECURITIES

    Zero-coupon U.S. Treasury  securities (or zeros) are the unmatured  interest
coupons and underlying  principal  portions of U.S. Treasury bonds.  Originally,
these  securities were created by  broker-dealers  who bought Treasury bonds and
deposited these securities with a custodian bank. The  broker-dealers  then sold
receipts  representing  ownership interests in the coupons or principal portions
of the bonds.  Some examples of zero-coupon  securities  sold through  custodial
receipt  programs  are CATS  (Certificates  of Accrual on Treasury  Securities),
TIGRs  (Treasury   Investment  Growth  Receipts),   and  generic  TRs  (Treasury
Receipts).

    The U.S. Treasury subsequently  introduced a program called Separate Trading
of Registered Interest and Principal of Securities ("STRIPS"),  through which it
exchanges  eligible  securities  for their  component  parts and then allows the
component parts to trade in book-entry form.  (Book-entry trading eliminates the
bank credit risks  associated  with  broker-dealer-sponsored  custodial  receipt
programs.)  STRIPS are direct  obligations  of the U.S.  government and have the
same credit risks as other U.S. Treasury securities.

    The Resolution Funding  Corporation  ("REFCORP") issues bonds whose interest
payments are  guaranteed by the U.S.  Treasury and whose  principal  amounts are
secured by zero-coupon  U.S.  Treasury  securities held in a separate  custodial
account  at the  Federal  Reserve  Bank of New York.  The  principal  amount and
maturity  date of REFCORP bonds are the same as the par amount and maturity date
of the  corresponding  zeros;  upon maturity,  REFCORP bonds are repaid from the
proceeds of the zeros. The U.S. government and its agencies may issue securities
in  zero-coupon  form.  These  securities  are  referred to as  "original  issue
zero-coupon securities."

OTHER INVESTMENTS

    As  a  Fund's  target  maturity  year   approaches,   the  Manager  may  buy
coupon-bearing  securities whose duration and price  characteristics are similar
to those of aging  zero-coupon  securities.  Towards the end of a Fund's  target
maturity  year and  until  the Fund is  liquidated,  the  proceeds  of  maturing
zero-coupon securities are invested in U.S. Treasury bills.

OTHER INVESTMENT PRACTICES, THEIR CHARACTERISTICS
AND RISKS

    The Funds are designed for investors  with  long-term  financial  goals that
correspond to one or more of the target  maturities  offered.  Investors who use
zeros or the Funds for short-term  speculative  purposes should understand that,
although most of the reinvestment risk associated with coupon-bearing  bonds has
been eliminated, the prices of zeros can fluctuate dramatically between issuance
and maturity.  When interest  rates rise, the price of a zero falls more sharply
than  the   price  of  a   coupon-bearing   security   of  the  same   maturity.
Correspondingly,  when  interest  rates  fall,  the price of a zero  rises  more
sharply than the price of a coupon-bearing security.

    Each Fund's share price will  fluctuate  daily in response to Fund  activity
and changes in the market value of its investments.  Due to the price volatility
of zeros,  redemptions made prior to a Fund's target maturity year may result in
unanticipated  capital  gains or losses for the Funds.  These  capital gains and
losses will be  distributed  to  shareholders  regardless  of whether  they have
redeemed shares.  Although  shareholders have the option to redeem shares on any
busi-


12  INFORMATION REGARDING THE FUNDS                 AMERICAN CENTURY INVESTMENTS


ness day,  those seeking to minimize  their  exposure to share price  volatility
should plan to hold their shares until the end of their Fund's  target  maturity
year.

    Investing in a portfolio of zeros is different from investing  directly in a
zero.  Although the Manager  adheres to investment  policies  designed to assure
close  correspondence  between  the price  behavior of a Fund and that of a zero
with the same maturity characteristics,  precise forecasts of maturity value and
yield to maturity are not possible.

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

COUPON-BEARING U.S. TREASURY SECURITIES

    U.S.  Treasury bills,  notes,  and bonds are direct  obligations of the U.S.
Treasury.  Historically, they have involved no risk of loss of principal if held
to  maturity.  Between  issuance  and  maturity,  however,  the  prices of these
securities   change  in   response   to  changes  in  market   interest   rates.
Coupon-bearing  securities  generate  current interest  payments,  and part of a
Fund's return may come from reinvesting interest earned on these securities.

CASH MANAGEMENT

    Each Fund may invest 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.

    Up to 5% of each Fund's total assets may be invested in this manner.

SECURITIES LENDING

    The Funds may lend portfolio securities to broker-dealers to earn additional
income. This practice could result in a loss or a delay in recovering the Fund's
securities.  Securities loans are subject to guidelines  prescribed by the Board
of Trustees, which are set forth in the Statement of Additional Information.

    A Fund's loans may not exceed 33-1/3% of its total assets.

PORTFOLIO TURNOVER

    The  portfolio  turnover  rates of the Funds  are  shown in the  Performance
Information of Other Class tables on pages 5-10 of this Prospectus.

    Investment  decisions  to  purchase  and sell  securities  are  based on the
anticipated  contribution  of the security in question to the particular  Fund's
objectives.  The  Manager  believes  that  the  rate of  portfolio  turnover  is
irrelevant  when it 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 each Fund may be higher than other  mutual funds
with similar investment  objectives.  The Funds' annual portfolio turnover rates
are not  expected  to  exceed  150% and may vary  from  year to year.  An annual
portfolio turnover rate of 100% or more is considered high. A high turnover rate
involves  correspondingly  higher transaction costs that are borne directly by a
Fund. Portfolio turnover may also affect the character of capital gains, if any,
realized and distributed by a Fund since short-term capital gains are taxable as
ordinary income.

PERFORMANCE ADVERTISING

    From  time  to  time,  the  Funds  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,
effective yield and tax-equivalent yield(for tax-exempt funds). Performance data
may be quoted  separately  for the Advisor Class and for the other class offered
by the Funds.

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

    A quotation of yield reflects a 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.


PROSPECTUS                          INFORMATION REGARDING THE FUNDS       13


    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.

    A tax-equivalent  yield  demonstrates the taxable yield necessary to produce
after-tax  yield  equivalent  to that of a mutual  fund which  invests in exempt
obligations.  As a  prospective  investor  in the Funds,  you  should  determine
whether your state tax-equivalent yield is likely to be higher with a taxable or
with a tax-exempt  Fund. To determine  this,  you may use the formulas  depicted
below.

    The  tax-equivalent  yield is based on each Fund's  current  state  tax-free
yield and your state income tax rate. The formula is:

          Fund's State Tax-Free Yield                     Your State
    ----------------------------------------     =      Tax-Equivalent
             100% - State Tax Rate                          Yield

    The Funds 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 Funds 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.


14      INFORMATION REGARDING THE FUNDS        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 funds offered by this Prospectus.

 HOW TO PURCHASE AND SELL AMERICAN
 CENTURY FUNDS

    One or more of the Funds  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 a Fund, see "Investment  Policies of the Funds,"
page  11,  or  call  one  of  our   Institutional   Service   Representative  at
1-800-345-3533.

    Orders to purchase shares are effective on the day we receive payment. See
"When Share Price Is Determined," page 16.

    We may  discontinue  offering shares  generally in the Funds  (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 16. 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       15


                    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.  Net asset  value  for the  Funds  offered  by this  Prospectus  is
determined one hour before the close of regular trading on each day that the New
York Stock  Exchange is open,  usually 2 p.m.  Central time. Net asset value for
all other American  Century funds is determined at the close of regular  trading
on 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 received by us or one of our agents one hour before the close of business
on the Exchange are effective on and will receive the price  determined one hour
before the close of the Exchange.  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  one hour  before the close of  business  on the
Exchange.

    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 prior to the close of business on the  Exchange  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.

HOW SHARE PRICE IS DETERMINED

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

    The portfolio  securities of each 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.

    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.


16  ADDITIONAL INFORMATION YOU SHOULD KNOW      AMERICAN CENTURY INVESTMENTS


 DISTRIBUTIONS

    Each  Fund  declares  an  ordinary  income  dividend  (and  a  capital  gain
distribution, if necessary) in December.

    Distributions  from net realized  securities  gains,  if any,  generally are
declared and paid once a year,  but the Funds 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 of 1940 (the "Investment Company Act").

    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 Individual Retirement Accounts and
403(b)  plans  paid in cash  only if you are at  least  59(1)/(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.

BUYING A DIVIDEND

    The timing of your investment  could have undesirable tax  consequences.  If
you open a new account or buy more shares for your  current  account just before
the day a dividend or distribution is reflected in your Fund's share price,  you
will  receive  a  portion  of your  investment  back as a  taxable  dividend  or
distribution.

REVERSE SHARE SPLITS

    At the  same  time  that the  Funds'  annual  dividends  (and  capital  gain
distributions,  if any) are  declared,  the Board of  Trustees  also  declares a
reverse share split for each Fund that exactly  offsets the per-share  amount of
the Fund's dividends (and capital gain distributions).

    Following a reverse  share split,  shareholders  who have chosen to reinvest
dividends and capital gain  distributions  own exactly the same number of shares
they owned prior to the distribution  and reverse share split.  Shareholders who
have  elected to take  distributions  in cash own fewer  shares.  Reverse  share
splits  cause the  Funds'  share  prices to behave  similarly  to the  prices of
directly held zero-coupon  securities with comparable maturity  characteristics.
Although  the  Trustees  intend to  declare a reverse  share  split  each time a
dividend or capital gain distribution is declared, they reserve the right not to
do so.

FUND LIQUIDATION

    During a Fund's target  maturity  year,  shareholders  will be asked if they
wish to receive payment of the liquidation proceeds in cash or to exchange their
shares for those of another American Century fund or another Target Fund. If the
Trust has not received instructions by December 31 of the Fund's target maturity
year,  shares will be exchanged  for shares of American  Century-Benham  Capital
Preservation  Fund  ("CPF") or, if CPF is not  available,  for shares of another
money market fund in the American Century family of funds.

TAXES

    Each 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

    Zero-coupon  securities  purchased  by the Funds accrue  interest  (commonly
referred to as "imputed  income") for federal  income tax  purposes  even though
zeros do not pay current interest. The Funds must distribute this imputed income
to shareholders as ordinary income dividends, which are subject to federal taxes
but exempt from state taxes.


PROSPECTUS                   ADDITIONAL INFORMATION YOU SHOULD KNOW       17


    Distributions of net investment income and net short-term  capital gains are
taxable to you as ordinary income, except as described below. The dividends from
net income of the Funds do not qualify for the 70% dividends-received  deduction
for  corporations  since  they  are  derived  from  interest  income.  Dividends
representing  income derived from tax-exempt  bonds generally  retain the bonds'
tax-exempt character in a shareholder's hands.  Distributions from net long-term
capital gains 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 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 capital gain 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.

    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 a 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 a 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 long-term if shareholders have held
such  shares for a period of more than one year.  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 Funds are  diversified,  open-end series of the American  Century Target
Maturities  Trust  (the  "Trust").   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 Funds, American Century Investment Management, Inc. serves
as the  investment  manager of the Funds.  Its  principal  place of  business is
American  Century Tower,  4500 Main Street,  Kansas City,  Missouri  64111.  The
Manager has been providing investment advisory


18  ADDITIONAL INFORMATION YOU SHOULD KNOW         AMERICAN CENTURY INVESTMENTS


services to investment companies and institutional  clients since it was founded
in 1958.

    The Manager supervises and manages the investment portfolio of each 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
manage the assets of the Funds.  The teams meet  regularly  to review  portfolio
holdings and to discuss purchase and sale activity. The teams adjust holdings in
the Funds'  portfolios  and the  Funds'  asset mix as they deem  appropriate  in
pursuit  of the  Funds'  investment  objectives.  Individual  portfolio  manager
members  of the  teams may also  adjust  portfolio  holdings  of the Funds or of
sectors of the Funds as necessary between team meetings.

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

    CASEY COLTON,  Portfolio Manager, joined the Manager in 1990, as a Municipal
Analyst and has been a member of the team that  manages  the Target  funds since
January 1996. Mr. Colton is a Chartered Financial Analyst.

    DAVID  SCHROEDER,  Vice President,  joined the Manager in 1990, and has been
primarily  responsible for the day-to-day  operations of each of the Funds since
July, 1990.

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

    For the services  provided to the Funds,  the Manager receives a monthly fee
based on a percentage of the average net assets of each 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 each of the Funds is an
annual rate of 0.29% of the average net assets of each Fund.  The Complex Fee is
currently  an annual  rate of 0.05% of the  average  net  assets  of each  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 Funds pay 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 a Fund by the
aggregate average daily closing value of a 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 Funds and the  Manager  have  adopted  a Code of Ethics  that  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 those Funds.

TRANSFER AND ADMINISTRATIVE SERVICES

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

    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.


PROSPECTUS                   ADDITIONAL INFORMATION YOU SHOULD KNOW       19


 DISTRIBUTION OF FUND SHARES

    The Funds' shares are distributed by American Century  Investment  Services,
Inc. ("the  Distributor"),  a registered  broker-dealer  and an affiliate of the
Manager.  As agent for the Funds 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 Funds'  shares and/or
the use of the Funds' 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
Funds' Board of Trustees and the initial shareholder of the Funds' 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  "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

    American  Century Target  Maturities  Trust was organized as a Massachusetts
business  trust  on  November  8,  1984.  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 Funds 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 Funds are individual series of the Trust which issues shares with no par
value.  The assets belonging to each series of shares are held separately by the
custodian and in effect each series is a separate  fund.  The Funds do not issue
share certificates.

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

    The Investor  Class 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 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


20  ADDITIONAL INFORMATION YOU SHOULD KNOW   AMERICAN CENTURY INVESTMENTS


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 represent ing at
least 10% of the votes  entitled  to be cast may  request  that the Trust hold a
special meeting of shareholders.  We 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 A FUND ONLY IN
THOSE STATES WHERE THE FUND'S SHARES HAVE BEEN REGISTERED OR OTHERWISE QUALIFIED
FOR SALE. A FUND WILL NOT ACCEPT  APPLICATIONS  FROM PERSONS  RESIDING IN STATES
WHERE THE FUND'S SHARES ARE NOT REGISTERED.


PROSPECTUS                   ADDITIONAL INFORMATION YOU SHOULD KNOW       21


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

INVESTOR 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

INTERNET: www.americancentury.com


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

9708           [recycled logo]
SH-BKT-9213       Recycled
<PAGE>
                       STATEMENT OF ADDITIONAL INFORMATION

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

                               SEPTEMBER 2, 1997

                                    BENHAM
                                 GROUP(reg.tm)

                                   Target 2000
                                   Target 2005
                                   Target 2010
                                   Target 2015
                                   Target 2020
                                   Target 2025


                      STATEMENT OF ADDITIONAL INFORMATION

                               SEPTEMBER 2, 1997

                   AMERICAN CENTURY TARGET MATURITIES TRUST

This Statement is not a prospectus  but should be read in  conjunction  with the
Funds' current Prospectus, dated September 2, 1997. The Funds' annual report for
the fiscal year ended September 30, 1996, is  incorporated 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 and Techniques .......................................... 2
Investment Restrictions ..................................................... 2
Portfolio Transactions ...................................................... 3
Valuation of Portfolio Securities ........................................... 3
Predictability of Return .................................................... 4
Performance ................................................................. 6
Taxes ....................................................................... 7
About the Trust ............................................................. 8
Multiple Class Structure .................................................... 9
Trustees and Officers .......................................................10
Management ..................................................................12
Transfer and Administrative Services ........................................14
Distribution of Fund Shares .................................................15
Additional Purchase and Redemption Information ..............................15
Other Information ...........................................................16


STATEMENT OF ADDITIONAL INFORMATION                                       1


 INVESTMENT POLICIES AND TECHNIQUES

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

LOANS OF PORTFOLIO SECURITIES

    Each Fund may lend its portfolio  securities to earn additional income. If a
borrower defaults on a securities loan, the lending 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,  American Century  Investment
Management,  Inc. (the "Manager") adheres to the following 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.

INVESTMENT RESTRICTIONS

    The Funds'  investment  restrictions  are set forth below.  These investment
restrictions  are  fundamental  and may not be changed  without  approval  of "a
majority of the outstanding  vote of  shareholders"  of a Fund, as determined in
accordance  with the  Investment  Company Act of 1940 (the  "Investment  Company
Act").

    AS A FUNDAMENTAL POLICY, EACH 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 33-1/3%
    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).

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 Funds are subject to the following  additional  investment
restrictions  which  are not  fundamental  and may be  changed  by the  Board of
Trustees.

    AS AN OPERATING POLICY, EACH FUND:

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

b)  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


2                                    AMERICAN CENTURY INVESTMENTS


    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.

c)  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 transaction in futures contracts and options are not deemed to
    constitute selling securities short.

d)  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 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 the 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 these investment restrictions.


 PORTFOLIO TRANSACTIONS

    Each Fund's assets are invested by the Manager in a manner  consistent  with
the Fund's  investment  objectives,  policies,  and  restrictions,  and with any
instructions  the Board of  Trustees  may issue from time to time.  Within  this
framework,  the Manager is responsible for making all  determinations  as to the
purchase and sale of portfolio  securities and for taking all steps necessary to
implement securities transactions on behalf of the Funds.

    In placing  orders for the purchase and sale of  portfolio  securities,  the
Manager  will  use its best  efforts  to  obtain  the best  possible  price  and
execution and will otherwise place orders with broker-dealers  subject to and in
accordance  with any  instructions  the Board of Trustees may issue from time to
time. The Manager will select  broker-dealers to execute portfolio  transactions
on behalf of the Funds solely on the basis of best price and execution.

    U.S.  government  securities  generally  are traded in the  over-the-counter
market through broker-dealers. A broker-dealer is a securities firm or bank that
makes a market  for  securities  by  offering  to buy at one price and sell at a
slightly higher price. The difference between these prices is known as a spread.

    The Manager  expects to execute  most  transactions  on a net basis  through
broker-dealers  unless it is determined  that a better price or execution can be
obtained on a commission basis through a broker.  Portfolio  securities may also
be purchased directly from the issuer.  The Funds paid no brokerage  commissions
during the fiscal years ended September 30, 1996, 1995, and 1994.

    Each Fund may hold portfolio securities until they mature, or it may sell or
otherwise  dispose of these  securities,  replacing  them with other  securities
consistent  with its investment  objectives and policies.  The Funds'  portfolio
turnover rates appear in the Financial Highlights section of the Prospectus.

VALUATION OF PORTFOLIO SECURITIES

    Each Fund's net asset value per share  ("NAV") is  calculated as of one hour
before the close of business of the New York Stock  Exchange  (the  "Exchange"),
usually 3 p.m. Central time each day the Exchange


STATEMENT OF ADDITIONAL INFORMATION                                            3


is open for business. The Exchange has designated the following holiday closings
for 1997:  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 Funds  expect  the same  holiday
schedule  to be  observed in the  future,  the  Exchange  may modify its holiday
schedule at any time.

    Each Fund's share price is  calculated  by adding the value of all portfolio
securities and other assets,  deducting liabilities,  and dividing the result by
the number of shares outstanding.  Expenses and interest on portfolio securities
are accrued daily.

    Most  securities  held by the Funds are priced at market  value using prices
obtained from an  independent  pricing  service.  Because of the large number of
zero-coupon  Treasury  obligations  available,  many do not trade  each day.  In
valuing  these  securities,  the pricing  service  generally  takes into account
institutional  trading,  trading  in  similar  groups  of  securities,  and  any
developments related to specific securities.

    The methods used by the pricing  service and the  valuations so  established
are  reviewed  by the  Manager  under the  general  supervision  of the Board of
Trustees.  There are a number of pricing services available, and the Manager, on
the  basis of  ongoing  evaluation  of these  services,  may use  other  pricing
services or discontinue the use of any pricing service in whole or in part.

    Securities  maturing  within 60 days of the valuation  date may be valued at
amortized cost,  which is cost plus or minus any amortized  discount or premium,
unless the Trustees  determine that this would not result in fair valuation of a
given security. Other assets and securities for which quotations are not readily
available are valued in good faith at their fair value using methods approved by
the Board of Trustees.

PREDICTABILITY OF RETURN

    ANTICIPATED VALUE AT MATURITY.  The maturity values of zero-coupon bonds are
specified at the time the bonds are issued, and this feature,  combined with the
ability to  calculate  yield to  maturity,  has made these  instruments  popular
investment vehicles for investors seeking reliable investments to meet long-term
financial goals.

    To provide a comparable investment  opportunity while allowing investors the
flexibility  to  purchase  or  redeem  shares  each  day the  Trust  is open for
business,  each Fund  consists  primarily of  zero-coupon  bonds but is actively
managed to accommodate  shareholder  activity and to take advantage of perceived
market  opportunities.  Because of this active management approach,  the Manager
does not guarantee that a certain price per share will be attained by the time a
Fund is liquidated. Instead, the Manager attempts to track the price behavior of
a directly held zero-coupon bond by:

(1) Maintaining a weighted  average  maturity  within the Fund's target maturity
    year;

(2) Investing at least 90% of assets in  securities  that mature within one year
    of the Fund's target maturity year;

(3) Investing  a  substantial  portion of assets in  Treasury  STRIPS  (the most
    liquid Treasury zero);

(4) Under normal conditions, maintaining a cash balance of less than 1%;

(5) Executing  portfolio  transactions  necessary to accommodate net shareholder
    purchases or redemptions on a daily basis; and

(6) Whenever feasible, contacting several U.S. government securities dealers for
    each  intended  transaction  in an effort to obtain  the best  price on each
    transaction.

    These  measures  enable the advisor to  calculate  an  anticipated  value at
maturity (AVM) for each Fund that approximates the price per share the Fund will
achieve  by its  weighted  average  maturity  date.  The AVM  calculation  is as
follows:

                             AVM = P(1+AGR/2)(2T)

where P = the Fund's  current price per share, T = the Fund's  weighted  average
term to maturity in years, and AGR = the anticipated growth rate.

    This calculation assumes that the shareholder will reinvest all dividend and
capital gain  distributions  (if any).  It also  assumes an expense  ratio and a
portfolio


4                                                   AMERICAN CENTURY INVESTMENTS


composition that remain constant for the life of the Fund. Because Fund expenses
and composition do not remain constant,  however, the Manager calculates AVM for
each Fund each day the Trust is open for business.

    In addition to the measures  described above, which the Manager believes are
adequate to assure close correspondence  between the price behavior of each Fund
and the price  behavior  of  directly  held  zero-coupon  bonds with  comparable
maturities, the Trust has made an undertaking to the staff of the Securities and
Exchange  Commission  (SEC)  that each Fund will  invest at least 90% of its net
assets in zero-coupon bonds until it is within four years of its target maturity
year and at least 80% of its net assets in zero-coupon securities while the Fund
is within two to four years of its target maturity year. This undertaking may be
revoked if the market supply of zero-coupon securities diminishes  unexpectedly,
although it will not be revoked without prior  consultation  with the SEC staff.
In addition,  the Manager has undertaken that any coupon-bearing  bond purchased
on behalf of a Fund will have a  duration  that falls  within the Fund's  target
maturity year.

    ANTICIPATED  GROWTH RATE. The Manager also calculates an anticipated  growth
rate  (AGR)  for each Fund  each day the  Trust is open for  business.  AGR is a
calculation of the annualized  rate of growth an investor may expect from his or
her  purchase  date to the  Fund's  target  maturity  date.  As is the case with
calculations of AVM, the AGR calculation assumes that the investor will reinvest
all  dividends  and  capital  gain  distributions  (if any) and that the  Fund's
expense ratio and portfolio  composition will remain  constant.  Each Fund's AGR
changes from day to day primarily because of changes in interest rates and, to a
lesser extent, to changes in portfolio composition and other factors that affect
the value of the Fund's investments.

    The Manager expects that  shareholders  who hold their shares until a Fund's
weighted  average  maturity date and who reinvest all dividends and capital gain
distributions  (if any),  will realize an investment  return and maturity  value
that do not differ  substantially from the AGR and AVM calculated on the day his
or her shares were purchased.

    The following  table  illustrates  investor  experience  with Target 1990, a
series  of the Trust  that was first  offered  on March 25,  1985,  and that was
liquidated  on January  25,  1991.  This table is not  indicative  of the future
performance of the existing Funds.

                   Share                         Weighted
                 Price (P)                       Average            AVM
Date              (in $)          AGR           Maturity (T)       (in $)
- --------------------------------------------------------------------------------

April 1985        56.03          10.58            5.64             100.25
June              60.62           9.68            5.42             101.17
September         62.72           9.44            5.08             100.23
December          67.75           8.26            4.95             101.15
March 1986        73.60           6.86            4.69             100.98
June              74.80           6.83            4.38             100.38
September         76.82           6.59            4.16             100.63
December          79.01           6.27            3.86             100.26
March 1987        79.88           6.34            3.59              99.93
June              79.01           7.21            3.27              99.63
September         77.28           8.57            3.14             100.62
December          81.02           7.52             2.7              99.33
March 1988        83.61           6.98            2.51              99.33
June              83.97           6.55            2.62              99.42
September         84.96           6.97            2.09              98.04
December          85.70           8.39            1.68              98.38
March 1989        86.76           9.18            1.50              99.25
June              90.47           7.57            1.23              99.16
September         91.91           7.81            0.98              99.08
December          94.00           7.38            0.74              99.17
March 1990        95.62           7.68            0.52              99.44
June              97.48           7.44            0.32              99.82
September         99.32           6.73            0.15             100.31
December         101.13           4.33            0.07             101.43
- --------------------------------------------------------------------------------

    Calculations  in the table on the previous page may not reconcile  precisely
due to  rounding of share  price,  AGR,  and  weighted  average  maturity to two
decimal points.

    Note that the Target  1990's share price on December  31, 1990,  was not the
same as its AVM on that date  because the Fund had not yet been  liquidated  and
still held short-term Treasury  securities with a 25-day maturity.  The Fund was
liquidated on January 25, 1991, at a final share price of $101.46.

    As a further  demonstration  of how the Funds have  behaved  over time,  the
following tables show each Fund's AGR and AVM as of September 30 for each of the
past five years.


STATEMENT OF ADDITIONAL INFORMATION                                       5


                9/30/92     9/30/93     9/30/94     9/30/95     9/30/96
                  AGR         AGR         AGR         AGR         AGR
- ----------------------------------------------------------------------------
Target 2000       6.01%       4.66%       6.76%      5.37%      5.75%
Target 2005        6.89        5.53        7.33       5.75       6.17
Target 2010        7.21        5.92        7.54       6.04       6.44
Target 2015        7.43        6.04        7.56       6.21       6.58
Target 2020        7.37        6.02        7.52       6.20       6.59
Target 2025         N/A         N/A         N/A        N/A       6.43
- ----------------------------------------------------------------------------

                9/30/92     9/30/93      9/30/94     9/30/95     9/30/96
                  AVM         AVM          AVM         AVM         AVM
- ----------------------------------------------------------------------------
Target 2000     $101.01     $100.21      $100.86     $100.99     $101.10
Target 2005       99.78      100.21       100.58      100.32      100.71
Target 2010      100.11      100.94       101.38      101.02      102.53
Target 2015      107.05      106.84       107.95      109.62      110.11
Target 2020      101.87      100.76       102.11      102.31      103.60
Target 2025         N/A         N/A          N/A         N/A      109.24
- ----------------------------------------------------------------------------

    The Funds' share prices and growth rates are not  guaranteed by the Trust or
any of its affiliates. There is no guarantee that the Funds' AVMs will fluctuate
as little in the future as they have in the past.

PERFORMANCE

    The Funds' yields and total returns may be quoted in  advertising  and sales
literature.  These figures,  as well as the Funds' share prices will vary.  Past
performance should not be considered as indicative 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 a 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.

    Each Fund's yield for the 30-day period ended September 30, 1996, calculated
using the SEC yield formula described above, is indicated below.

Fund                                            30-Day Yield
- --------------------------------------------------------------------------------
Target 2000                                        6.15%
Target 2005                                        6.51%
Target 2010                                        6.71%
Target 2015                                        6.80%
Target 2020                                        6.94%
Target 2025                                        6.48%
- --------------------------------------------------------------------------------

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

    Average  annual total returns are  calculated by  determining  the growth or
decline in value of a  hypothetical  historical  investment  in a Fund  during 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 ten years would produce an average annual return of 7.18%, which is
the steady annual rate that would equal 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 a Funds' 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.

    The  Funds'  average  annual  total  returns  for the  one-year,  five-year,
ten-year,  and  life-of-fund  periods ended September 30, 1996, are indicated in
the following table.


6                                                  AMERICAN CENTURY INVESTMENTS


                         Average Annual Total Returns
- --------------------------------------------------------------------------------
                   One-             Five-           Ten-         Life-of-
Fund               Year             Year            Year           Fund
- --------------------------------------------------------------------------------
Target 2000(1)    4.02%            8.71%           9.35%          13.03%
Target 2005(1)    2.16%           10.48%          10.34%          14.73%
Target 2010(1)    0.78%           11.11%          10.37%          15.80%
Target 2015(2)  (0.75)%           11.63%           9.38%           9.70%
Target 2020(3)  (2.09)%           11.90%             N/A           9.39%
Target 2025(4)      N/A              N/A             N/A        (15.18)%
- --------------------------------------------------------------------------------

(1) Commenced operations on March 25, 1985.
(2) Commenced operations on September 1, 1986.
(3) Commenced operations on December 29, 1989.
(4) Commenced operations on February 16, 1996.

    In addition to average annual total returns,  each 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 percentages or as dollar amounts 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 Funds'  performance may be compared with the performance of other mutual
funds  tracked by mutual  fund rating  services or with other  indexes of market
performance.  This may include  comparisons with funds that, unlike the American
Century funds, 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  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 indexes of stock market
performance;  and  indexes and  historical  data  supplied  by major  securities
brokerage or investment advisory firms. The Funds may also utilize reprints from
newspapers  and magazines  furnished by third  parties to illustrate  historical
performances.

TAXES

    Each Fund 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,  a Fund will not incur federal or state income taxes to the
extent that it distributes  substantially  all of its net investment  income and
net realized capital gains (if any) to shareholders.

    As holders of zero-coupon Treasury securities  ("zeros"),  the Funds receive
no cash  payments  of  interest  prior to the  dates  these  securities  mature.
However,  portfolio  holdings  that  include  zeros  accrue  interest  (commonly
referred to as "imputed income") for federal income tax purposes.

    Under the Code,  dividends  derived from interest,  imputed income,  and any
short-term  capital  gains are  federally  taxable to  shareholders  as ordinary
income,  regardless of whether such dividends are taken in cash or reinvested in
additional  shares.  Distributions  designated  as being  made from a Fund's net
realized  long-term  capital  gains are  taxable to  shareholders  as  long-term
capital  gains,  regardless  of the length of time  shares  are held.  Corporate
investors are not eligible for the dividends-received  deduction with respect to
distributions from the Funds.

    Upon redeeming,  selling, or exchanging shares of a Fund,  shareholders will
realize  a  taxable  gain or loss  depending  upon  their  basis  in the  shares
liquidated.


STATEMENT OF ADDITIONAL INFORMATION                                7


    The gain or loss generally will be long-term or short-term  depending on the
length of time the shares were held. However, a loss recognized by a shareholder
in the  disposition  of shares on which  capital  gain  dividends  were paid (or
deemed paid) before the shareholder had held his or her shares for more than six
months would be treated as a long-term capital loss for tax purposes.

    Dividends paid by each Fund are exempt from state  personal  income taxes in
all states  because the Funds derive their  income from debt  securities  of the
U.S.  government whose interest payments are state tax-exempt.  Distributions of
capital gains are generally not exempt from state and local taxes.

    The  information  above is only a summary of some of the tax  considerations
generally affecting the Funds and their  shareholders.  No attempt has been made
to discuss  individual tax  consequences.  The Funds'  distributions may also be
subject to state, local or foreign taxes. A prospective  investor should consult
a tax advisor or state or local tax  authorities to determine  whether the Funds
are suitable investments.

ABOUT THE TRUST

    American Century Target  Maturities  Trust (the "Trust"),  formerly known as
Benham Target Maturities Trust, is a registered open-end  management  investment
company that was  organized  as a  Massachusetts  business  trust on November 8,
1984.  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 (or  Funds).  Shares  issued are fully
paid and nonassessable and have no preemptive, conversion, or similar rights.

    Currently,  there are six series of the Trust,  as  follows:  Target  2000 ,
Target 2005,  Target 2010,  Target 2015 , Target 2020 and Target 2025. The table
below  lists each  Fund's  current and former  name.  The Board of Trustees  may
create additional  series from time to time. In addition,  the Board of Trustees
may liquidate a series at the conclusion of its target maturity year.

    Shares of each Fund have  equal  voting  rights,  although  each Fund  votes
separately on matters affecting it exclusively. Voting rights are not cumulative
so that investors holding more than 50% of the Trust's outstanding shares may be
able to elect a Board of Trustees. The Trust has instituted dollar-based voting,
meaning  that the number of votes you are  entitled  to is based upon the dollar
amount of your  investment.  The election of Trustees is determined by the votes
received  from all Trust  shareholders  without  regard to whether a majority of
shares of any one series voted in favor of a particular  nominee or all nominees
as a group.

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

    Shareholders  of  a  Massachusetts   business  trust  could,  under  certain
circumstances,  be held  personally  liable 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

<TABLE>
- ----------------------------------------------------------------------------------------------------------------
<S>                                                              <C>      
FUND NAME AS OF  JANUARY, 1997                                                 FORMER FUND NAME
- ----------------------------------------------------------------------------------------------------------------
American Century--Benham Target Maturities Trust: 2000          Benham Target Maturities Trust 2000 Portfolio
American Century--Benham Target Maturities Trust: 2005          Benham Target Maturities Trust 2005 Portfolio
American Century--Benham Target Maturities Trust: 2010          Benham Target Maturities Trust 2010 Portfolio
American Century--Benham Target Maturities Trust: 2015          Benham Target Maturities Trust 2015 Portfolio
American Century--Benham Target Maturities Trust: 2020          Benham Target Maturities Trust 2020 Portfolio
American Century--Benham Target Maturities Trust: 2025          Benham Target Maturities Trust 2025 Portfolio
- ----------------------------------------------------------------------------------------------------------------
</TABLE>


8                                                AMERICAN CENTURY INVESTMENTS


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:  Chase Manhattan Bank, 4 Chase Metrotech Center,  Brooklyn,
New York 11245 and  Commerce  Bank,  N.A.,  1000 Walnut,  Kansas City,  Missouri
64106,  serve as  custodians  of the Funds'  assets.  Services  provided  by the
custodians  include (i) settling  portfolio  purchases and sales, (ii) reporting
failed trades,  (iii)  identifying  and collecting  portfolio  income,  and (iv)
providing safekeeping of securities.  The custodians take no part in determining
the Funds'  investment  policies or in determining  which securities are sold or
purchased by the Funds.

    INDEPENDENT AUDITORS: KPMG Peat Marwick LLP, 1000 Walnut, Suite 1600, Kansas
City, Missouri 64106,  serves as the Trust's  independent  auditors and provides
services including the audit of the annual financial statements.

    For the fiscal year,  which  starts on October 1, 1997,  the Trustees of the
Funds have selected  Coopers & Lybrand LLP to serve as  independent  auditors of
the Funds. The address of Coopers & Lybrand LLP is City Center Square, 1100 Main
Street, Suite 900, Kansas City, Missouri 64105-2140.

MULTIPLE CLASS STRUCTURE

    The  funds'  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
Institutional Class and an Advisor 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,  the  Advisor  Class  shares are  subject to a Master
Distribution  and  Shareholder  Services  Plan. The plan has been adopted by the
funds' Board of Trustees and initial  shareholder in accordance  with Rule 12b-1
adopted by the SEC under the Investment Company Act.

RULE 12-B1

    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 funds' Advisor Class
have 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)
, hereafter referred to as the "independent trustees"] determined that there was
a  reasonable  likelihood  that  the  Plan  would  benefit  the  funds  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


STATEMENT OF ADDITIONAL INFORMATION                                           9


or by vote of a majority of the  outstanding  voting  securities of the affected
class.

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

MASTER DISTRIBUTION AND SHAREHOLDER
SERVICES PLAN

    As described in the  Prospectuses,  the funds'  Advisor  Class of shares are
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 funds' shares in various  investment  products or in connection with various
financial services.

    Certain  recordkeeping and administrative  services that are provided by the
funds' 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 funds'  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 funds' Board of Trustees has adopted
a Master Distribution and Shareholder  Services Plan (the "Distribution  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 funds' 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 funds'
Advisor Class shares; (c) compensation to, and expenses  (including overhead and
telephone  expenses)  of the  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" 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 funds  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,  beginning in the next column,
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 the Trust; the Trust's investment
advisor,  American Century  Investment  Management,  Inc.; the Trust's agent for
transfer and administrative services, American


10                                               AMERICAN CENTURY INVESTMENTS


Century Services  Corporation (ACS); the Trust's  distribution  agent,  American
Century Investment  Services,  Inc. (ACIS);  their parent corporation,  American
Century Companies,  Inc. (ACC) or ACC's subsidiaries;  or other funds advised by
the Manager.  Each Trustee listed below serves as a Trustee or Director of other
funds advised by the Manager.

    Unless otherwise noted, dates in parentheses  indicate the dates the Trustee
or officer began his or her service in a particular capacity.  The Trustees' and
officers'  address with the exception of Mr.  Stowers III and Ms. Roepke is 1665
Charleston Road, Mountain View, California 94043. The address of Mr. Stowers III
and Ms.  Roepke is  American  Century  Tower,  4500 Main  Street,  Kansas  City,
Missouri 64111.

TRUSTEES

    *JAMES M. BENHAM,  Chairman of the Board of Trustees  (1985);  President and
Chief Executive Officer (1996). Mr. Benham is also President and Chairman of the
Board of the  Manager  (1971);  and a member  of the Board of  Governors  of the
Investment  Company  Institute  (1988).  Mr.  Benham has been in the  securities
business  since 1963, and he frequently  comments  through the media on economic
conditions, investment strategies, and the securities markets.

    ALBERT A. EISENSTAT,  independent Trustee (1995). 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); Charles J. Meyers Professor of
Law and  Business  at  Stanford  Law  School  (1979)  and the Mark and Eva Stern
Professor  of Law and  Business  at  Columbia  University  School of Law (1992);
Counsel to Marron, Reid & Sheehy (a San Francisco law firm, 1984).

    MYRON S. SCHOLES,  independent Trustee (1985). 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). 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). 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,   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,  Trustee  (1995).  Mr. Stowers III is Chief Executive
Officer and  Director of ACC;  Chief  Executive  Officer and Director of ACS and
ACIS.

    JEANNE D. WOHLERS,  independent  Trustee  (1985).  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

    *JAMES M. BENHAM, President and Chief Executive Officer (1996).

    *WILLIAM  M.  LYONS,  Executive  Vice  President  (1996);  President,  Chief
Operating  Officer and General Counsel of ACC;  Executive Vice President,  Chief
Operating  Officer and General Counsel of ACS and ACIS;  Assistant  Secretary of
ACC; Secretary of ACS and ACIS.

    *DOUGLAS A. PAUL,  Secretary  (1988),  Vice  President  (1990),  and General
Counsel (1990); Vice President and Associate General Counsel, ACS.

    *C. JEAN WADE, Controller (1996).

    *MARYANNE ROEPKE,  CPA, Chief Financial  Officer and Treasurer (1995);  Vice
President and Assistant Treasurer of ACS.

    *JON ZINDEL,  Tax Officer (1997);  Director of Taxation (1996); Tax Manager,
Price Waterhouse LLP (1989).


STATEMENT OF ADDITIONAL INFORMATION                                       11


    As of November 30, 1996, the Funds' Trustees and officers, as a group, owned
less than 1% of each Fund's total shares outstanding.

    The table on the next page  summarizes  the  compensation  that the Trustees
received for the Funds'  fiscal year ended  September  30, 1996,  as well as the
compensation received for serving as a Director or Trustee of the other funds.

MANAGEMENT

    Each Fund has an  investment  management  agreement  with the Manager  dated
August 1, 1997.  This agreement was approved by the  shareholders of each of the
Funds on July 30, 1997.

    For the services  provided to the Funds,  the Manager receives a monthly fee
based on a percentage of the average net assets of each 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 in a fund's
investment  category  (Bond  Funds)  which  are  managed  by  the  Manager  (the
"Investment  Category Fee").  Second, a separate fee rate schedule is applied to
the assets of all of the mutual 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                                                   0.3100%
Next $1 billion                                                    0.2580%
Next $3 billion                                                    0.2280%
Next $5 billion                                                    0.2080%
Next $15 billion                                                   0.1950%
Next $25 billion                                                   0.1930%
Thereafter                                                         0.1925%
- --------------------------------------------------------------------------------

    The Complex Fee Schedule (Investor Class) 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 Institutional  Class is lower by 0.2000% at
each graduated  step. For example,  if the Investor Class Complex Fee is 0.3000%
for the  first $2  billion,  the  Institutional  Class  Complex  Fee is  0.1000%
(0.3000% minus  0.2000%) for the first $2 billion.  The Complex Fee schedule for
the Advisor Class is lower by 0.2500% at each graduated step.

    On the first  business day of each month,  the Funds pay 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 a 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 Funds'
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 Funds 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.


12                                               AMERICAN CENTURY INVESTMENTS

<TABLE>
<CAPTION>
TRUSTEE COMPENSATION FOR THE FISCAL YEAR ENDED SEPTEMBER 30, 1996

                            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     $12   (Target 1995)          Not Applicable             Not Applicable                $47,750
                        249   (Target 2000)
                         200  (Target 2005)
                         100  (Target 2010)
                         110  (Target 2015)
                         643  (Target 2020)
                           9  (Target 2025)
- --------------------------------------------------------------------------------------------------------------------------------
Ronald J. Gilson      $1,025  (Target 1995)          Not Applicable             Not Applicable                $56,249
                       1,313  (Target 2000)
                       1,240  (Target 2005)
                       1,121  (Target 2010)
                       1,135  (Target 2015)
                       1,755  (Target 2020)
                           9  (Target 2025)
- --------------------------------------------------------------------------------------------------------------------------------
Myron S. Scholes      $1,029  (Target 1995)          Not Applicable             Not Applicable                $56,000
                       1,310  (Target 2000)
                       1,234  (Target 2005)
                       1,119  (Target 2010)
                       1,135  (Target 2015)
                       1,733  (Target 2020)
                           7  (Target 2025)
- --------------------------------------------------------------------------------------------------------------------------------
Kenneth E. Scott      $1,049  (Target 1995)          Not Applicable             Not Applicable                $64,523
                       1,515  (Target 2000)
                       1,393  (Target 2005)
                       1,202  (Target 2010)
                       1,230  (Target 2015)
                       2,241  (Target 2020)
                           9  (Target 2025)
- --------------------------------------------------------------------------------------------------------------------------------
Ezra Solomon***       $1,035  (Target 1995)          Not Applicable             Not Applicable                $61,083
                       1,398  (Target 2000)
                       1,302  (Target 2005)
                       1,153  (Target 2010)
                       1,172  (Target 2015)
                       1,943  (Target 2020)
                          10  (Target 2025)
- --------------------------------------------------------------------------------------------------------------------------------
Isaac Stein           $1,036  (Target 1995)          Not Applicable             Not Applicable                $59,000
                       1,381  (Target 2000)
                       1,287  (Target 2005)
                       1,146  (Target 2010)
                       1,165  (Target 2015)
                       1,899  (Target 2020)
                           9  (Target 2025)
- --------------------------------------------------------------------------------------------------------------------------------
Jeanne D. Wohlers     $1,033  (Target 1995)          Not Applicable             Not Applicable                $59,500
                       1,391  (Target 2000)
                       1,301  (Target 2005)
                       1,154  (Target 2010)
                       1,173  (Target 2015)
                       1,954  (Target 2020)
                           9  (Target 2025)
- --------------------------------------------------------------------------------------------------------------------------------

*  Interested Trustees receive no compensation for their services as such.
** Includes compensation paid by the 15 investment company members of the American Century family of funds.
***  Retired December, 1996.
</TABLE>


        STATEMENT OF ADDITIONAL INFORMATION                                   13


    The  management  agreement  provides  that it may be  terminated at any time
without payment of any penalty by the Funds' Board of Trustees,  or by a vote of
a  majority  of the  Funds'  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 Funds 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  Funds and also for other
clients  advised by the Manager.  Investment  decisions  for the Funds and other
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 a Fund.

    The  Manager  may  aggregate  purchase  and sale  orders of the  Funds  with
purchase  and sale orders of its other  clients when the Manager  believes  that
such aggregation  provides the best execution for the Funds. The Funds' 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 Funds  participate 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  Funds  unless  it
believes such  aggregation is consistent with its duty to seek best execution on
behalf  of the  Funds 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 Funds,  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 California Tax-Free and Municipal Funds,  American Century  Quantitative
Equity Funds and American Century International Bond Funds.

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

    Investment  advisory  fees  paid by each  Fund for the  fiscal  years  ended
September 30, 1996,  1995, and 1994, are indicated in the following  table.  Fee
amounts are net of amounts reimbursed or recouped as described under the section
titled "Expense Limitation Agreement."

                           Investment Advisory Fees*
- --------------------------------------------------------------------------------
                      Fiscal              Fiscal              Fiscal
Fund                   1996                1995                1994
- --------------------------------------------------------------------------------

Target 2000          $815,109            $984,031            $943,356

Target 2005           672,052             420,328             400,711

Target 2010           368,802             175,368             186,373

Target 2015           410,846             336,887             224,852

Target 2020         2,525,244             422,436             152,691

Target 2025            13,420                  --                  --
- --------------------------------------------------------------------------------

*Net of reimbursements

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 Funds.
It provides physical  facilities,  including  computer hardware and software and
personnel,  for the day-to-day  administration  of the Funds and of the Manager.
The Manager pays American Century Services Corporation for such services.


14                                                 AMERICAN CENTURY INVESTMENTS


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

    Administrative  service  and  transfer  agent fees paid by each Fund for the
fiscal years ended  September  30, 1996,  1995,  and 1994,  are indicated in the
following  tables.  Fee amounts are net of  reimbursements  as  described  under
"Expense Limitation Agreement."

                              Administrative Fees
- -------------------------------------------------------------------------------
                 Fiscal              Fiscal              Fiscal
Fund              1996                1995                1994
- -------------------------------------------------------------------------------
Target 2000     $274,837            $274,835            $265,769
Target 2005      217,047             121,534             113,361
Target 2010      106,951              64,928              54,429
Target 2015      117,664             108,475              66,096
Target 2020      744,692             185,592              50,714
Target 2025       14,090                  --                  --
- -------------------------------------------------------------------------------

                              Transfer Agent Fees
- -------------------------------------------------------------------------------
                 Fiscal              Fiscal              Fiscal
Fund              1996                1995                1994
- -------------------------------------------------------------------------------
Target 2000     $267,353            $285,145            $170,682
Target 2005      266,687            $183,211            $104,835
Target 2010      178,493            $130,450             $67,306
Target 2015      178,562            $202,013             $78,543
Target 2020      858,442            $350,332             $69,631
Target 2025       32,597                  --                  --
- -------------------------------------------------------------------------------

DISTRIBUTION OF FUND SHARES

    The Funds' shares are distributed by American Century  Investment  Services,
Inc. (ACIS),  a registered  broker-dealer  and an affiliate of the Manager.  The
Manager pays all expenses for promoting and distributing the Fund shares offered
by this  Prospectus.  The Funds do not pay any commissions or other fees to ACIS
or to any other  broker-dealers  or financial  intermediaries in connection with
the distribution of Fund shares.


 ADDITIONAL PURCHASE AND REDEMPTION INFORMATION

    The Funds'  shares are  continuously  offered at net asset  value.  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 the  Manager's
opinion,  such  rejection  or  limitation  is in the  Trust's  or  series'  best
interest.  As of November 30, 1996, to the Funds' knowledge,  no shareholder was
the  record  holder  or  beneficial  owner  of  5% or  more  of a  Fund's  total
outstanding shares except for those listed below.

Fund                                   Target 2000
- -------------------------------------------------------------------------------
Shareholder Name and                   Charles Schwab & Co.
Address                                101 Montgomery Street
                                       San Francisco, CA 94101-4122
- -------------------------------------------------------------------------------
# of Shares Held                       491,770.201
- -------------------------------------------------------------------------------
% of Total Shares
Outstanding                            15.5%
- -------------------------------------------------------------------------------


Fund                                   Target 2005
- -------------------------------------------------------------------------------
Shareholder Name and                   Charles Schwab & Co.
Address                                101 Montgomery Street
                                       San Francisco, CA 94101
- -------------------------------------------------------------------------------
# of Shares Held                       667,158.762
- -------------------------------------------------------------------------------
% of Total Shares
Outstanding                            16.9%
- -------------------------------------------------------------------------------


Fund                                   Target 2010
- -------------------------------------------------------------------------------
Shareholder Name and                   National Financial Services Corp.
Address                                P.O. Box 3908
                                       Church Street Station
                                       New York, NY 10008-3908
- -------------------------------------------------------------------------------
# of Shares Held                       143,277.243
- -------------------------------------------------------------------------------
% of Total Shares
Outstanding                            5.9%
- -------------------------------------------------------------------------------
Shareholder Name and                   Charles Schwab & Co.
Address                                101 Montgomery Street
                                       San Francisco, CA 94101-4122
- -------------------------------------------------------------------------------
# of Shares Held                       543,068.264
- -------------------------------------------------------------------------------
% of Total Shares
Outstanding                            22.5%
- -------------------------------------------------------------------------------


STATEMENT OF ADDITIONAL INFORMATION                                     15


Fund                                   Target 2015
- --------------------------------------------------------------------------------
Shareholder Name and                   Charles Schwab & Co.
Address                                101 Montgomery Street
                                       San Francisco, CA 94101
- --------------------------------------------------------------------------------
# of Shares Held                       765,111.255
- --------------------------------------------------------------------------------
% of Total Shares
Outstanding                            22.4%
- --------------------------------------------------------------------------------


Fund                                   Target 2020
- --------------------------------------------------------------------------------
Shareholder Name and                   National Financial Services Corp.
Address                                P.O. Box 3908
                                       Church Street Station
                                       New York, NY 10008-3908
- --------------------------------------------------------------------------------
# of Shares Held                       4,674,830.140
- --------------------------------------------------------------------------------
% of Total Shares
Outstanding                            12.4%
- --------------------------------------------------------------------------------
Shareholder Name and                   Charles Schwab & Co.
Address                                101 Montgomery Street
                                       San Francisco, CA 94101-4122
- --------------------------------------------------------------------------------
# of Shares Held                       12,910,920.599
- --------------------------------------------------------------------------------
% of Total Shares
Outstanding                            8.1%
- --------------------------------------------------------------------------------


Fund                                   Target 2025
- --------------------------------------------------------------------------------
Shareholder Name and                   National Financial Services Corp.
Address                                P.O. Box 3908
                                       Church Street Station
                                       New York, NY 10008-3908
- --------------------------------------------------------------------------------
# of Shares Held                       152,280.796
- --------------------------------------------------------------------------------
% of Total Shares
Outstanding                            8.1%
- --------------------------------------------------------------------------------
Shareholder Name and                   Charles Schwab & Co.
Address                                101 Montgomery Street
                                       San Francisco, CA 94101-4122
- --------------------------------------------------------------------------------
# of Shares Held                       576,527.425
- --------------------------------------------------------------------------------
% of Total Shares
Outstanding                            30.4%
- --------------------------------------------------------------------------------

    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.

    Share purchases and redemptions are governed by California law.

    FUND LIQUIDATIONS.  On or before January 31st of the year following a Fund's
target  maturity year, its  investments  will be sold or allowed to mature;  its
liabilities will be discharged, or a provision will be made for their discharge,
and its accounts will be closed.  A shareholder  may choose to redeem his or her
shares in one of the following  ways:  (i) by receiving  redemption  proceeds or
(ii) by exchanging  shares for shares of another  American  Century fund. If the
Fund  receives no  instructions  from a  shareholder,  his or her shares will be
exchanged for shares of American  Century-Benham Capital Preservation Fund (or a
similar  fund if Capital  Preservation  Fund is not  available).  The  estimated
expenses of terminating  and liquidating a Fund will be accrued ratably over its
target maturity year.  These  expenses,  which are charged to income (as are all
expenses), are not expected to exceed significantly the ordinary annual expenses
incurred  by a Fund  and,  therefore,  should  have  little  or no effect on the
maturity value of the Fund.

OTHER INFORMATION

    For  further  information,  please  refer  to  registration  statements  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.

    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  additional  copies of financial  reports and  prospectuses  or
separate mailing of account statements is desired, please call us.


16                                                 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: 
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<PAGE>
AMERICAN CENTURY TARGET MATURITIES TRUST

1933 Act Post-Effective Amendment No. 27
1940 Act Amendment No. 29
- --------------------------------------------------------------------------------

PART C   OTHER INFORMATION

Item 24.  Financial Statements and Exhibits

(a)      FINANCIAL  STATEMENTS.  Audited financial statements for each series of
         the  Trust  for  the  fiscal  year  ended   September  30,  1996,   are
         incorporated  herein by reference  to the  Registrant's  Annual  Report
         dated  September  30, 1996 filed on  November  26,  1996  (Accession  #
         757928-96-000009).

(b)      EXHIBITS.

          (1)  (a)  Agreement  and  Declaration  of Trust dated May 31, 1995, is
               incorporated   herein   by   reference   to   Exhibit   1(b)   of
               Post-Effective  Amendment  No.  24 filed  on  November  29,  1995
               (Accession # 757928-95-000005).

               (b) Amendment to the Declaration of Trust dated October 21, 1996,
               is included herein.

               (c) Amendment to the  Declaration of Trust dated  August 1, 1997,
               is included herein.

          (2)  Amended and Restated Bylaws, dated May 17, 1995, are incorporated
               herein by reference to Exhibit 2(b) of  Post-Effective  Amendment
               No. 24 filed on November 29, 1995 (Accession # 757928-95-000005).

          (3)  Not applicable.

          (4)  Not applicable.

          (5)  (a)  Investor  Class  Investment   Management  Agreement  between
               American  Century Target  Maturities  Trust and American  Century
               Investment   Management,   Inc.,   dated   August  1,  1997,   is
               incorporated  herein by reference to Exhibit 5 of  Post-Effective
               Amendment #33 to the  Registration  Statement of American Century
               Government   Income  Trust,   filed  July  31,  1997   (Accession
               #773674-97-000014).

               (b)  Advisor  Class  Investment   Management   Agreement  between
               American  Century  Target  Maturities  Trust,   American  Century
               Government  Income Trust,  American  Century  International  Bond
               Funds,  and American  Century  Quantitative  Equity Funds,  dated
               August 1, 1997, is included herein.

          (6)  Distribution Agreement between American Century Target Maturities
               Trust and  American  Century  Investment  Services,  Inc.,  dated
               August 1, 1997, is incorporated  herein by reference to Exhibit 6
               of Post-Effective  Amendment #33 to the Registration Statement of
               American  Century  Government  Income Trust,  filed July 31, 1997
               (Accession #773674-97-000014).

          (7)  Not applicable.

          (8)  Custodian   Agreement   between  American   Century   Investments
               (including   American  Century  Target  Maturities   Trust),  and
               The Chase Manhattan Bank,  dated August 9, 1996,  is incorporated
               herein by reference to Exhibit 8 of Post-Effective  Amendment #31
               to the  Registration  Statement for American  Century  Government
               Income    Trust,    filed    February    7,    1997    (Accession
               #773674-97-000002).

          (9)  Transfer  Agency   Agreement   between  American  Century  Target
               Maturities Trust and American Century Services Corporation, dated
               August 1, 1997, is incorporated  herein by reference to Exhibit 9
               of Post-Effective Amendment #33 to the Registration Statement for
               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  November  14,  1996  is
               incorporated  herein by  reference to the Rule 24f-2 Notice filed
               on November 14, 1996 (Accession # 757928-96-000008).

          (11) Consent  of KPMG Peat  Marwick,  LLP,  independent  auditors,  is
               incorporated herein by reference to Post-Effective  Amendment #26
               to  the  Registration  Statement,  filed  on  December  24,  1996
               (Accession # 0000757928-96-000013).

          (12) Not applicable.

          (13) Not applicable.

          (14) (a)American Century Individual Retirement Account Plan, including
               all  instructions  and other relevant  documents,  dated February
               1992,   is   incorporated   by  reference  to  Exhibit  14(a)  to
               Post-Effective Amendment No. 20.

               (b) American Century  Pension/Profit  Sharing plan, including all
               instructions and other relevant  documents,  dated February 1992,
               is incorporated  by reference to Exhibit 14(b) to  Post-Effective
               Amendment No. 20.

          (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  incorporated  herein by  reference  to
               Post-Effective Amendment #26 to the Registration Statement, filed
               on December 24, 1996 (Accession # 0000757928-96-000013).

          (17) Power of Attorney dated February 28, 1997 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 July 31, 1997, each Portfolio of American Century Target  Maturities Trust
had the following number of shareholders of record:

                    Target 2000 ........................10,701
                    Target 2005 ........................11,717
                    Target 2010 ........................ 6,320
                    Target 2015 ........................ 6,094
                    Target 2020 ........................17,443
                    Target 2025 ........................ 1,723


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) of  Post-Effective  Amendment  No. 24 filed on  November  29, 1995
(Accession # 757928-95-000005).


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.

The Registrant's distribution agent, American Century Investment Services, Inc.,
is distribution  agent to American  Century  Capital  Preservation  Fund,  Inc.,
American Century Capital Preservation Fund II, Inc., American Century California
Tax-Free and Municipal Funds, American Century Government Income Trust, American
Century  Municipal Trust,  American Century Target  Maturities  Trust,  American
Century  Quantitative Equity Funds,  American Century  International Bond Funds,
American Century  Investment  Trust,  American  Century Manager Funds,  American
Century Variable  Portfolios,  Inc., American Century Capital Portfolios,  Inc.,
American Century Mutual Funds,  Inc.,  American Century Premium Reserves,  Inc.,
American Century  Strategic Asset  Allocations,  Inc. and American Century World
Mutual  Funds,  Inc. The  information  required  with respect to each  director,
officer or partner of American Century Investment Services, Inc. is incorporated
herein by reference to American Century Investment Services, Inc. Form B-D filed
on November 21, 1985 (SEC File No. 8-35220; Firm CRD No. 17437).


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.  The  computer and data base for
shareholder  records are located at Central Computer  Facility,  401 North Broad
Street, Sixth Floor, Philadelphia, PA 19108.


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. 27/Amendment No. 29 to be signed on its behalf by the undersigned,
thereunto  duly  authorized,  in  the  City  of  Mountain  View,  and  State  of
California,  on the  27th  day of  August,  1997.  I hereby  certify  that  this
Amendment meets the  requirements for immediate  effectiveness  pursuant to Rule
485(b).

                              AMERICAN CENTURY TARGET MATURITIES TRUST


                              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. 27/Amendment No. 29 has been signed below by the following persons
in the capacities and on the dates indicated.
<TABLE>
                                                                            Date
<S>                                  <C>                                    <C>
*                                    Chairman of the Board of Trustees,     August 27, 1997
- ---------------------------------    President, and
James M. Benham                      Chief Executive Officer

*                                    Trustee                                August 27, 1997
- ---------------------------------
Albert A. Eisenstat

*                                    Trustee                                August 27, 1997
- ---------------------------------
Ronald J. Gilson

*                                    Trustee                                August 27, 1997
- ---------------------------------
Myron S. Scholes

*                                    Trustee                                August 27, 1997
- ---------------------------------
Kenneth E. Scott

*                                    Trustee                                August 27, 1997
- ---------------------------------
Isaac Stein

*                                    Trustee                                August 27, 1997
- ---------------------------------
James E. Stowers III

*                                    Trustee                                August 27, 1997
- ---------------------------------
Jeanne D. Wohlers

*                                    Chief Financial Officer, Treasurer     August 27, 1997
- ---------------------------------
Maryanne Roepke
</TABLE>

/s/ Douglas A. Paul
*by Douglas A. Paul, Attorney in Fact (pursuant to a Power of Attorney dated 
February 28, 1997).


EXHIBIT     DESCRIPTION

EX-99.B1a   Agreement  and   Declaration   of  Trust  dated  May  31,  1995,  is
            incorporated  herein by reference to Exhibit 1(b) of  Post-Effective
            Amendment   No.  24  filed  on  November   29,  1995   (Accession  #
            757928-95-000005).

EX-99.B1b   Amendment to the  Declaration  of Trust dated  October 21, 1996,  is
            included herein.

EX-99.B1c   Amendment  to the  Declaration  of Trust  dated  August 1, 1997,  is
            included herein.

EX-99.B2    Amended and Restated  Bylaws,  dated May 17, 1995, are  incorporated
            herein by reference to Exhibit 2(b) of Post-Effective  Amendment No.
            24 filed on November 29, 1995 (Accession # 757928-95-000005).

EX-99.B5a   Investor Class  Investment  Management  Agreement  between  American
            Century  Target  Maturities  Trust and American  Century  Investment
            Management,  Inc.,  dated August 1, 1997, is incorporated  herein by
            reference  to  Exhibit  5 of  Post-Effective  Amendment  #33  to the
            Registration  Statement of American Century Government Income Trust,
            filed July 31, 1997 (Accession #773674-97-000014).

EX-99.B5b   Advisor  Class  Investment  Management  Agreement  between  American
            Century Target Maturities Trust,  American Century Government Income
            Trust,  American  Century  International  Bond Funds,  and  American
            Century Quantitative Equity Funds, dated August 1, 1997, is included
            herein.

EX-99.B6    Distribution  Agreement  between American Century Target  Maturities
            Trust and American Century Investment  Services,  Inc., dated August
            1,  1997,  is  incorporated  herein  by  reference  to  Exhibit 6 of
            Post-Effective  Amendment  #33  to  the  Registration  Statement  of
            American  Century  Government  Income  Trust,  filed  July 31,  1997
            (Accession #773674-97-000014).

EX-99.B8    Custodian Agreement between American Century Investments  (including
            American Century Target Maturities  Trust),  and The Chase Manhattan
            Bank,  dated August 9, 1996, is incorporated  herein by reference to
            Exhibit  8 of  Post-Effective  Amendment  #31  to  the  Registration
            Statement  for  American  Century  Government  Income  Trust,  filed
            February 7, 1997 (Accession #773674-97-000002).

EX-99.B9    Transfer Agency Agreement between American Century Target Maturities
            Trust and American  Century  Services  Corporation,  dated August 1,
            1997,  is   incorporated   herein  by  reference  to  Exhibit  9  of
            Post-Effective  Amendment  #33 to  the  Registration  Statement  for
            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 November 14, 1996 is incorporated herein by
            reference  to the Rule  24f-2  Notice  filed on  November  14,  1996
            (Accession # 757928-96-000008).

EX-99.B11   Consent  of  KPMG  Peat  Marwick,   LLP,  independent  auditors,  is
            incorporated herein by reference to Post-Effective  Amendment #26 to
            the Registration Statement,  filed on December 24, 1996 (Accession #
            0000757928-96-000013).

EX-99.B14a  American Century Individual  Retirement Account Plan,  including all
            instructions and other relevant  documents,  dated February 1992, is
            incorporated  by  reference  to  Exhibit  14(a)  to   Post-Effective
            Amendment No. 20.

EX-99.B14b  American  Century   Pension/Profit   Sharing  plan,   including  all
            instructions and other relevant  documents,  dated February 1992, is
            incorporated  by  reference  to  Exhibit  14(b)  to   Post-Effective
            Amendment No. 20.

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  incorporated   herein  by  reference  to
            Post-Effective Amendment #26 to the Registration Statement, filed on
            December 24, 1996 (Accession # 0000757928-96-000013).

EX-99.B17   Power of Attorney dated February 28, 1997 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-27.5.1   FDS - Target 2000 

EX-27.5.2   FDS - Target 2005 

EX-27.5.3   FDS - Target 2010 

EX-27.5.4   FDS - Target 2015 

EX-27.5.5   FDS - Target 2020 

EX-27.5.6   FDS - Target 2025 

                                    AMENDMENT
                                     TO THE
                              DECLARATION OF TRUST
                                       OF

                         BENHAM TARGET MATURITIES TRUST

                           Effective October 21, 1996

         WHEREAS,  Section 1 of Article I of the  Declaration  of Trust provides
that the Trustees may designate a new name for the Trust,  or any Series,  to be
effective upon execution by a majority of the Trustees of an instrument  setting
forth the new names;

         WHEREAS, the Trustees have determined that it is appropriate and in the
interests  of the  Trust to change  the name of the Trust and its  Series as set
forth below;

         RESOLVED,  that the Trust shall  henceforth  be known as the  "American
Century Target Maturities Trust";

         RESOLVED  FURTHER,  that the existing Series be renamed as follows (new
language appears in boldface type, deleted language is struck through):
<TABLE>
Former Name                                                  New Name
- ------------------------------------------------------------ --------------------------------------------------------
- ------------------------------------------------------------ --------------------------------------------------------
<S>                                                           <C>                                         
Benham Target Maturities Trust:  2000 Portfolio                    American  Century  -  Benham  Target   Maturities
                                                                  Trust:  2000
- ------------------------------------------------------------ --------------------------------------------------------
- ------------------------------------------------------------ --------------------------------------------------------
Benham Target Maturities Trust:  2005 Portfolio                    American  Century  -  Benham  Target   Maturities
                                                                  Trust:  2005
- ------------------------------------------------------------ --------------------------------------------------------
- ------------------------------------------------------------ --------------------------------------------------------
Benham Target Maturities Trust:  2010 Portfolio                    American  Century  -  Benham  Target   Maturities
                                                                  Trust:  2010
- ------------------------------------------------------------ --------------------------------------------------------
- ------------------------------------------------------------ --------------------------------------------------------
Benham Target Maturities Trust:  2015 Portfolio                    American  Century  -  Benham  Target   Maturities
                                                                  Trust:  2015
- ------------------------------------------------------------ --------------------------------------------------------
- ------------------------------------------------------------ --------------------------------------------------------
Benham Target Maturities Trust:  2020 Portfolio                    American  Century  -  Benham  Target   Maturities
                                                                  Trust:  2020
- ------------------------------------------------------------ --------------------------------------------------------
- ------------------------------------------------------------ --------------------------------------------------------
Benham Target Maturities Trust:  2025 Portfolio                    American  Century  -  Benham  Target   Maturities
                                                                  Trust:  2025
- ------------------------------------------------------------ --------------------------------------------------------
</TABLE>

<TABLE>
Trustees of the Benham Target Maturities Trust

<S>                                       <C>              <C>                                       <C>   
/s/ James M. Benham                       10/21/96          /s/ Ezra Solomon                          10/21/96
- ----------------------------------------  -------------     ----------------------------------------  --------
James M. Benham*                          Date              Ezra Solomon*                             Date
/s/ Albert A. Eisenstat                   10/21/96          /s/ Isaac Stein                           10/21/96
- ----------------------------------------  -------------     ----------------------------------------  --------
Albert A. Eisenstat*                      Date              Isaac Stein*                              Date
/s/ Ronald J. Gilson                      10/21/96          /s/ James E. Stowers III                  10/21/96
- ----------------------------------------  -------------     ----------------------------------------  --------
Ronald J. Gilson*                         Date              James E. Stowers III*                     Date
/s/ Myron S. Scholes                      10/21/96          /s/ Jeanne D. Wohlers                     10/21/96
- ----------------------------------------  -------------     ----------------------------------------  --------
Myron S. Scholes*                         Date              Jeanne D. Wohlers*                        Date
/s/ Kenneth E. Scott                      10/21/96
- ----------------------------------------  --------
Kenneth E. Scott*                         Date


*By:                                                                                        Date:  October 21, 1996
       /s/Douglas A. Paul
       Douglas A. Paul, Esq.
       Pursuant to Power of Attorney dated March 4, 1996
</TABLE>

                                 AMENDMENT NO. 2
                                     TO THE
                              DECLARATION OF TRUST
                                       OF

                    AMERICAN CENTURY TARGET MATURITIES TRUST

                            Effective August 1, 1997

         WHEREAS,  Section 5 of Article III of the Declaration of Trust provides
that the  Trustees may modify  provisions  relating to the shares of the various
series of the Trust;

         WHEREAS,  the Trustees have adopted a Multiple  Class Plan dated August
1, 1997 on behalf of the Trust,  which  authorizes  the  issuance of  additional
classes of shares as indicated in this Amendment No. 2;

         RESOLVED, that the Declaration of Trust is hereby amended as follows:

1.       The following subsection is added to Article I, Subsection 2:

         (k).  "Class" shall have the meaning  prescribed in the Multiple  Class
Plan dated  August 1, 1997 as  amended  from time to time (the  "Multiple  Class
Plan").

2.       Article III, Section 6 is amended to read as follows:

         Section 6.  Establishment and Designation of Series.  The establishment
and  designation of any Series of Shares shall be effective upon resolution by a
majority of the then Trustees,  setting forth such establishment and designation
and the relative rights and preferences of such Series, or as otherwise provided
in such resolution.  Such establishment and designation shall be set forth in an
amendment to this  Declaration of Trust by execution of a new Schedule A to this
Declaration of Trust.

         Shares of each Series  established  pursuant to this  Section 6, unless
otherwise provided in the resolution  establishing such Series or as modified by
the Multiple Class Plan, shall have the following rights and preferences:

3.       Article III, Section 8 is deleted.
<TABLE>
Trustees of the American Century Target Maturities Trust

<S>                                       <C>               <C>                                       <C>
/s/ James M. Benham                       8/1/97            /s/ Kenneth E. Scott                      8/1/97
- ----------------------------------------  -------------     ----------------------------------------  ------
James M. Benham*                          Date              Kenneth E. Scott*                         Date
/s/ Albert A. Eisenstat                   8/1/97            /s/ Isaac Stein                           8/1/97
- ----------------------------------------  -------------     ----------------------------------------  ------
Albert A. Eisenstat*                      Date              Isaac Stein*                              Date
/s/ Ronald J. Gilson                      8/1/97            /s/ James E. Stowers III                  8/1/97
- ----------------------------------------  -------------     ----------------------------------------  ------
Ronald J. Gilson*                         Date              James E. Stowers III*                     Date
/s/ Myron S. Scholes                      8/1/97            /s/ Jeanne D. Wohlers                     8/1/97
- ----------------------------------------  -------------     ----------------------------------------  ------
Myron S. Scholes*                         Date              Jeanne D. Wohlers*                        Date

*By:   /s/Douglas A. Paul                                                       Date:  August 1, 1997
       Douglas A. Paul, Esq.
       Pursuant to Power of Attorney dated March 4, 1996
</TABLE>
<PAGE>
                       AGREEMENT AND DECLARATION OF TRUST
                    AMERICAN CENTURY TARGET MATURITIES TRUST

                                   Schedule A

Pursuant to Article III,  Section 6, the Trustess hereby establish and designate
the following  Series as Series of the Trust (and the Classes  thereof) with the
relative rights and preferences as described in Section 6:
<TABLE>
- ------------------------------------------------------------------------------------ ------------ -------------------
                                                                                                       Date of
<S>                                                                                <C>             <C>   
Series                                                                               Class          Establishment
- ------------------------------------------------------------------------------------ ------------ -------------------
- ------------------------------------------------------------------------------------ ------------ -------------------
American Century--Benham Target Maturities Trust: 2000                                Investor         3/25/1985
                                                                                     Advisor           8/1/1997
- ------------------------------------------------------------------------------------ ------------ -------------------
American Century--Benham Target Maturities Trust: 2005                                Investor         3/25/1985
                                                                                     Advisor           8/1/1997
- ------------------------------------------------------------------------------------ ------------ -------------------
American Century--Benham Target Maturities Trust: 2010                                Investor         3/25/1985
                                                                                     Advisor           8/1/1997
- ------------------------------------------------------------------------------------ ------------ -------------------
American Century--Benham Target Maturities Trust: 2015                                Investor          9/1/1986
                                                                                     Advisor           8/1/1997
- ------------------------------------------------------------------------------------ ------------ -------------------
American Century--Benham Target Maturities Trust: 2020                                Investor         12/29/1989
                                                                                     Advisor           8/1/1997
- ------------------------------------------------------------------------------------ ------------ -------------------
American Century--Benham Target Maturities Trust: 2025                                Investor         2/16/1996
                                                                                     Advisor           8/1/1997
- ------------------------------------------------------------------------------------ ------------ -------------------
</TABLE>

This  Schedule  A shall  supersede  any  previously  adopted  Schedule  A to the
Declaration of Trust.

<TABLE>
Trustees of the American Century Target Maturities Trust
<S>                                       <C>               <C>                                      <C>    
/s/ James M. Benham                       8/1/97            /s/ Kenneth E. Scott                      8/1/97
- ----------------------------------------  -------------     ----------------------------------------  ------
James M. Benham*                          Date              Kenneth E. Scott*                         Date
/s/ Albert A. Eisenstat                   8/1/97            /s/ Isaac Stein                           8/1/97
- ----------------------------------------  -------------     ----------------------------------------  ------
Albert A. Eisenstat*                      Date              Isaac Stein*                              Date
/s/ Ronald J. Gilson                      8/1/97            /s/ James E. Stowers III                  8/1/97
- ----------------------------------------  -------------     ----------------------------------------  ------
Ronald J. Gilson*                         Date              James E. Stowers III*                     Date
/s/ Myron S. Scholes                      8/1/97            /s/ Jeanne D. Wohlers                     8/1/97
- ----------------------------------------  -------------     ----------------------------------------  ------
Myron S. Scholes*                         Date              Jeanne D. Wohlers*                        Date


*By:   /s/Douglas A. Paul                                                       Date:  August 1, 1997
       Douglas A. Paul, Esq.
       Pursuant to Power of Attorney dated March 4, 1996
</TABLE>

                  AMERICAN CENTURY INVESTMENT MANAGEMENT, INC.

                              MANAGEMENT AGREEMENT
                                  Advisor Class

         This  MANAGEMENT  AGREEMENT is made and entered into by and between the
registered  investment  companies  listed on  Exhibit A to this  Agreement  (the
"Companies"),  as of the dates  noted on such  Exhibit A, and  American  Century
Investment Management, Inc., a Delaware corporation (the "Investment Manager").

         WHEREAS,  the Companies  have adopted a Multiple Class Plan dated as of
August 1, 1997,  (as the same may be amended  from time to time,  the  "Multiple
Class Plan"),  pursuant to Rule 18f-3 of the Investment  Company Act of 1940, as
amended (the "Investment Company Act"); and

         WHEREAS, the Multiple Class Plan establishes three classes of shares of
certain series of shares of the Companies: the Investor Class, the Institutional
Class and the Advisor Class; and

         WHEREAS,  the sole class of shares  issued by each  series of shares of
the  Companies  prior  to the  adoption  of the  Multiple  Class  Plan  has been
designated as the Investor Class, the investment  management  services for which
are  provided by the  Investment  Manager  pursuant to that  certain  Management
Agreement dated as of August 1, 1997 and its predecessors; and

         IN  CONSIDERATION   of  the  mutual  promises  and  agreements   herein
contained, the parties agree as follows:

1.   Investment Management Services.  The Investment Manager shall supervise the
     investments  of the Advisor Class of each series of shares of the Companies
     contemplated  as of  the  date  hereof,  and  the  Advisor  Class  of  such
     subsequent  series of shares as the Companies  shall select the  Investment
     Manager to manage. In such capacity,  the Investment Manager shall maintain
     a continuous  investment program for the Advisor Class of each such series,
     determine what securities shall be purchased or sold by each series, secure
     and evaluate such  information as it deems proper and take whatever  action
     is necessary or convenient to perform its functions,  including the placing
     of purchase  and sale  orders.  In  performing  its duties  hereunder,  the
     Investment Manager will manage the portfolio of all classes of a particular
     series as a single portfolio.

2.   Compliance  With Laws. All functions  undertaken by the Investment  Manager
     hereunder  shall at all times  conform to, and be in accordance  with,  any
     requirements imposed by:

     (a)  the Investment  Company Act and any rules and regulations  promulgated
          thereunder;

     (b)  any other applicable provisions of law;

     (c)  the  Declaration of Trust or Articles of  Incorporation  applicable to
          each of the Companies as amended from time to time;

     (d)  the By-Laws of the Companies as amended from time to time; and

     (e)  The Multiple Class Plan; and

     (f)  the registration  statement of the Companies,  as amended from time to
          time,  filed  under  the  Securities  Act of 1933  and the  Investment
          Company Act.

3.   Board  Supervision.  All  of the  functions  undertaken  by the  Investment
     Manager  hereunder  shall at all times be subject to the  direction  of the
     Board of  Trustees  or Board of  Directors  (collectively,  the  "Board  of
     Directors") of the Companies,  its executive committee, or any committee or
     officers  of the  Companies  acting  under  the  authority  of the Board of
     Directors.

4.   Payment Of Expenses. The Investment Manager will pay all of the expenses of
     the  Advisor  Class of each series of the  Companies'  shares that it shall
     manage,  other  than  interest,  taxes,  brokerage  commissions,  portfolio
     insurance,  extraordinary  expenses  and the  fees  and  expenses  of those
     Directors  who  are  not  "interested  persons"  as  defined  in  1940  Act
     (hereinafter referred to as the "Independent Directors") (including counsel
     fees) and expenses incurred in connection with the provision of shareholder
     services  and  distribution  services  under the  Master  Distribution  and
     Shareholder  Services  Plan  dated as of August  1,  1997.  The  Investment
     Manager  will  provide  the  Companies  with all  physical  facilities  and
     personnel  required to carry on the  business of the Advisor  Class of each
     series that the Investment Manager shall manage,  including but not limited
     to office space, office furniture, fixtures and equipment, office supplies,
     computer hardware and software and salaried and hourly paid personnel.  The
     Investment  Manager may at its expense  employ others to provide all or any
     part of such facilities and personnel.

5.   Account Fees.  The Board of Directors  may impose fees for various  account
     services,  proceeds of which may be remitted to the appropriate Fund or the
     Investment  Manager at the discretion of the Board. At least 60 days' prior
     written  notice  of the  intent  to  impose  such  fee must be given to the
     shareholders of the affected series.

6.   Management Fees.

     (a)  In consideration of the services  provided by the Investment  Manager,
          the Advisor Class of each series of shares of the Companies managed by
          the Investment Manager shall pay to the Investment Manager a per annum
          management fee (hereinafter, the "Applicable Fee"). The calculation of
          the  Applicable  Fee for the Advisor Class of a series is performed as
          follows:

          (i)  Each series is assigned to one of three  categories  based on its
               overall  investment  objective   ("Investment   Category").   The
               Investment  Category  assignments  appear  in  Exhibit  B to this
               Agreement.

          (ii) Each  series is  assigned a fee  schedule  within its  Investment
               Category in Exhibit C to this Agreement.  The Investment Category
               assets  managed by the  Investment  Manager  determines the first
               component  of a  series'  fee.  This  fee is  referred  to as the
               "Investment  Category Fee". The  determination  of the Investment
               Category assets is as follows:

               a)   Money  Market Fund  Category.  The assets  which are used to
                    determine the fee for this Investment Category is the sum of
                    the assets of all of the open-end  investment company series
                    which invest  primarily in debt  securities,  are subject to
                    Rule  2a-7  under the 1940 Act,  managed  by the  Investment
                    Manager and  distributed  to the public by American  Century
                    Investment Services, Inc.

               b)   Bond Fund  Category.  The assets which are used to determine
                    the fee for this  Investment  Category is the sum the assets
                    of all of  the  open-end  investment  company  series  which
                    invest primarily in debt securities, are not subject to Rule
                    2a-7  under  the 1940 Act,  are  managed  by the  Investment
                    Manager  and  are  distributed  to the  public  by  American
                    Century Investment Services, Inc.

               c)   Equity Fund Category. The assets which are used to determine
                    the fee for this  Investment  Category is the sum the assets
                    of all of  the  open-end  investment  company  series  which
                    invest  primarily in equity  securities,  are managed by the
                    Investment  Manager  and are  distributed  to the  public by
                    American Century Investment Services, Inc.

          (iii)A fee which is based on the total assets in all of the Investment
               Categories is determined by the schedule which appears in Exhibit
               D. This fee is referred to as the series' "Complex Fee".

          (iv) The  Applicable  Fee for a  series  is the sum of the  Investment
               Category Fee and the Complex Fee.

          (v)  The assets which are used to compute the  Applicable Fee shall be
               the assets of all of the open-end investment companies managed by
               the Investment Manager.  Any exceptions to this requirement shall
               be approved by the Board of Directors of the Companies.

     (b)  On the first  business  day of each month,  the Advisor  Class of each
          series of shares shall pay the management fee at the rate specified by
          subparagraph (a) of this paragraph 6 to the Investment Manager for the
          previous month.  The fee for the previous month shall be calculated by
          multiplying  the  Applicable  Fee for  such  series  by the  aggregate
          average  daily  closing  value of the  series'  net assets  during the
          previous month,  and further  multiplying  that product by a fraction,
          the  numerator  of which  shall be the number of days in the  previous
          month, and the denominator of which shall be 365 (366 in leap years).

     (c)  In the event that the Board of Directors of a Company shall  determine
          to issue an Advisor Class of any additional series of shares for which
          it is  proposed  that  the  Investment  Manager  serve  as  investment
          manager,  the Company and the  Investment  Manager shall enter into an
          Addendum to this Agreement  setting forth the name of the series,  the
          Applicable  Fee and such other terms and  conditions as are applicable
          to the management of such series of shares.

7.   Continuation Of Agreement.  This Agreement shall continue in effect, unless
     sooner terminated as hereinafter  provided,  for a period of two years from
     the execution  hereof,  and for as long  thereafter as its  continuance  is
     specifically  approved,  as to  each  series  of the  Companies,  at  least
     annually (i) by the Board of Directors of the Companies or by the vote of a
     majority  of  the  outstanding  Advisor  Class  voting  securities  of  the
     Companies,  and  (ii) by the vote of a  majority  of the  Directors  of the
     Companies,  who are not parties to the agreement or  interested  persons of
     any such  party,  cast in person at a meeting  called  for the  purpose  of
     voting on such approval.

8.   Termination.  This Agreement may be terminated, with respect to any series,
     by the  Investment  Manager at any time  without  penalty  upon  giving the
     appropriate  Company 60 days' written notice,  and may be terminated,  with
     respect  to any  series,  at any  time  without  penalty  by the  Board  of
     Directors of a Company or by vote of a majority of the outstanding  Advisor
     Class voting  securities of such series on 60 days'  written  notice to the
     Investment Manager.

9.   Effect Of Assignment.  This Agreement shall automatically  terminate in the
     event of assignment by the Investment  Manager,  the term  "assignment" for
     this purpose having the meaning defined in Section 2(a)(4) of the 1940 Act.

10.  Other  Activities.  Nothing herein shall be deemed to limit or restrict the
     right of the  Investment  Manager,  or the  right  of any of its  officers,
     directors or employees (who may also be a trustee, officer or employee of a
     Company),  to engage in any other  business or to devote time and attention
     to the  management  or other  aspects of any other  business,  whether of a
     similar or  dissimilar  nature,  or to render  services  of any kind to any
     other corporation, firm, individual or association.

11.  Standard Of Care. In the absence of willful  misfeasance,  bad faith, gross
     negligence, or reckless disregard of its obligations or duties hereunder on
     the part of the  Investment  Manager,  it, as an  inducement to it to enter
     into this Agreement,  shall not be subject to liability to the Companies or
     to any  shareholder  of the Companies for any act or omission in the course
     of, or connected with,  rendering services hereunder or for any losses that
     may be sustained in the purchase, holding or sale of any security.

12.  Separate Agreement.  The parties hereto acknowledge that certain provisions
     of the 1940 Act,  in effect,  treat each  series of shares of a  registered
     investment  company  as a separate  investment  company.  Accordingly,  the
     parties  hereto  hereby  acknowledge  and agree that,  to the extent deemed
     appropriate  and  consistent  with the 1940 Act,  this  Agreement  shall be
     deemed to constitute a separate  agreement  between the Investment  Manager
     and each  series of  shares  of the  Companies  managed  by the  Investment
     Manager.

13.  Use of the  Names  "American  Century"  and  "Benham."  The name  "American
     Century"  and all  rights to the use of the names  "American  Century"  and
     "Benham"  are  the  exclusive   property  of  American   Century   Services
     Corporation  ("ACSC"),  an affiliate of the  Investment  Manager.  ACSC has
     consented  to, and  granted a  non-exclusive  license  for,  the use by the
     Companies and their respective  series of the names "American  Century" and
     "Benham"  in the name of the  Companies  and any series of shares  thereof.
     Such  consent  and  non-exclusive  license  may be  revoked  by ACSC in its
     discretion if ACSC, the Investment Manager, or a subsidiary or affiliate of
     either of them is not employed as the investment  manager of each series of
     shares of the Companies. In the event of such revocation, the Companies and
     each series of shares thereof using the name "American Century" or "Benham"
     shall cease using the name "American Century" or "Benham", unless otherwise
     consented to by ACSC or any successor to its interest in such names.

         IN WITNESS  WHEREOF,  the  parties  have caused  this  Agreement  to be
executed by their  respective  duly  authorized  officers as of the day and year
indicated on Exhibit A.


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


/*/Douglas A. Paul                  /*/James M. Benham
Douglas A. Paul                     James M. Benham
Secretary                           President and Chief Executive Officer


Attest:                             AMERICAN CENTURY INVESTMENT MANAGEMENT, INC.


/*/William M. Lyons                 /*/James E. Stowers III
William M. Lyons                    James E. Stowers III
Secretary                           President and Chief Executive Officer
<PAGE>
<TABLE>
<CAPTION>
                                                 Exhibit A
                          Registered Investment Companies Subject to Management Agreement
- --------------------------------------------------------------------------------- ----------------------------------

Registered Investment Company and Advisor Class Funds                                           Date
- --------------------------------------------------------------------------------- ----------------------------------

<S>                                                                                       <C>
American Century Government Income Trust
     Benham GNMA Fund                                                                      August 1, 1997
     Benham Government Agency Money Market Fund                                            August 1, 1997
     Benham Intermediate-Term Treasury Fund                                                August 1, 1997
     Benham Long-Term Treasury Fund                                                        August 1, 1997
     Benham Short-Term Government Fund                                                     August 1, 1997
     Benham Short-Term Treasury Fund                                                       August 1, 1997

American Century International Bond Funds
     Benham International Bond Fund                                                        August 1, 1997

American Century Quantitative Equity Funds
     American Century Equity Growth Fund                                                   August 1, 1997
     American Century Global Gold Fund                                                     August 1, 1997
     American Century Global Natural Resources Fund                                        August 1, 1997
     American Century Income & Growth Fund                                                 August 1, 1997
     American Century Utilities Fund                                                       August 1, 1997

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




By executing  this Exhibit A, each Fund  executes  the  Management  Agreement to
which it is  attached  and all of its  Exhibits  and  amendments  as of the date
specified above.

                                                       AMERICAN CENTURY GOVERNMENT INCOME TRUST
                                                       AMERICAN CENTURY INTERNATIONAL BOND FUNDS
AMERICAN CENTURY INVESTMENT MANAGEMENT, INC.           AMERICAN CENTURY QUANTITATIVE EQUITY FUNDS
                                                       AMERICAN CENTURY TARGET MATURITIES TRUST


/*/James E. Stowers III                                /*/James M. Benham
James E. Stowers III                                   James M. Benham
President and Chief Executive Officer                  President and Chief Executive Officer
</TABLE>
<PAGE>
<TABLE>
<CAPTION>
                                    Exhibit B

                          Series Investment Categories
- ----------------------------------------- --------------------------------------------------------------------------

Investment Category                       Series
- ----------------------------------------- --------------------------------------------------------------------------

<S>                                      <C>
Money Market Funds                        Benham Government Agency Money Market Fund

Bond Funds                                Benham GNMA Fund
                                          Benham Intermediate-Term Treasury Fund
                                          Benham International Bond Fund
                                          Benham Long-Term Treasury Fund
                                          Benham Short-Term Government Fund
                                          Benham Short-Term Treasury Fund
                                          Benham Target Maturities Trust: 2000
                                          Benham Target Maturities Trust: 2005
                                          Benham Target Maturities Trust: 2010
                                          Benham Target Maturities Trust: 2015
                                          Benham Target Maturities Trust: 2020
                                          Benham Target Maturities Trust: 2025

Equity Funds                              American Century Equity Growth Fund
                                          American Century Global Gold Fund
                                          American Century Global Natural Resources Fund
                                          American Century Income & Growth Fund
                                          American Century Utilities Fund
- ----------------------------------------- --------------------------------------------------------------------------


Dated:  August 1, 1997

                                                       AMERICAN CENTURY GOVERNMENT INCOME TRUST
                                                       AMERICAN CENTURY INTERNATIONAL BOND FUNDS
AMERICAN CENTURY INVESTMENT MANAGEMENT, INC.           AMERICAN CENTURY QUANTITATIVE EQUITY FUNDS
                                                       AMERICAN CENTURY TARGET MATURITIES TRUST

As executed on behalf of the above in                  As executed on behalf of the above in
Exhibit A by                                           Exhibit A by
James E. Stowers III                                   James M. Benham
President and Chief Executive Officer                  President and Chief Executive Officer
</TABLE>
<PAGE>
<TABLE>
<CAPTION>
                                    Exhibit C

              Investment Category Fee Schedules: Money Market Funds

Schedule 1
                                                   ------------------------------------------------------------------
CATEGORY ASSETS                   FEE RATE                                 Schedule 1 Funds:
<S>                               <C>               <C>                                                                   
First $1 billion                  0.2500%                     Benham Government Agency Money Market Fund
Next $1 billion                   0.2070%          ------------------------------------------------------------------
Next $3 billion                   0.1660%
Next $5 billion                   0.1490%
Next $15 billion                  0.1380%
Next $25 billion                  0.1375%
Thereafter                        0.1370%


Schedule 2
                                                   ------------------------------------------------------------------
CATEGORY ASSETS                   FEE RATE                                 Schedule 2 Funds:
First $1 billion                  0.2700%                                        NONE
Next $1 billion                   0.2270%          ------------------------------------------------------------------
Next $3 billion                   0.1860%
Next $5 billion                   0.1690%
Next $15 billion                  0.1580%
Next $25 billion                  0.1575%
Thereafter                        0.1570%


Schedule 3
                                                   ------------------------------------------------------------------
CATEGORY ASSETS                   FEE RATE                                 Schedule 3 Funds:
First $1 billion                  0.3700%                                        NONE
Next $1 billion                   0.3270%          ------------------------------------------------------------------
Next $3 billion                   0.2860%
Next $5 billion                   0.2690%
Next $15 billion                  0.2580%
Next $25 billion                  0.2575%
Thereafter                        0.2570%
<PAGE>

                       Category Fee Schedules: Bond Funds


Schedule 1
                                                   ------------------------------------------------------------------
CATEGORY ASSETS                   FEE RATE                                 Schedule 1 Funds:
First $1 billion                  0.2800%                           Benham Short-Term Treasury Fund
Next $1 billion                   0.2280%                       Benham Intermediate-Term Treasury Fund
Next $3 billion                   0.1980%                           Benham Long-Term Treasury Fund
Next $5 billion                   0.1780%          ------------------------------------------------------------------
Next $15 billion                  0.1650%
Next $25 billion                  0.1630%
Thereafter                        0.1625%


Schedule 2
                                                   ------------------------------------------------------------------
CATEGORY ASSETS                   FEE RATE                                 Schedule 2 Funds:
First $1 billion                  0.3100%                                        NONE
Next $1 billion                   0.2580%          ------------------------------------------------------------------
Next $3 billion                   0.2280%
Next $5 billion                   0.2080%
Next $15 billion                  0.1950%
Next $25 billion                  0.1930%
Thereafter                        0.1925%

Schedule 3
                                                   ------------------------------------------------------------------
CATEGORY ASSETS                   FEE RATE                                 Schedule 3 Funds:
First $1 billion                  0.3600%                                  Benham GNMA Fund
Next $1 billion                   0.3080%                          Benham Short-Term Government Fund
Next $3 billion                   0.2780%                        Benham Target Maturities Trust: 2000
Next $5 billion                   0.2580%                        Benham Target Maturities Trust: 2005
Next $15 billion                  0.2450%                        Benham Target Maturities Trust: 2010
Next $25 billion                  0.2430%                        Benham Target Maturities Trust: 2015
Thereafter                        0.2425%                        Benham Target Maturities Trust: 2020
                                                                 Benham Target Maturities Trust: 2025
                                                   ------------------------------------------------------------------


                       Category Fee Schedules: Bond Funds
                                   (continued)


Schedule 4
                                                   ------------------------------------------------------------------
CATEGORY ASSETS                   FEE RATE                                 Schedule 4 Funds:
First $1 billion                  0.6100%                           Benham International Bond Fund
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%

                      Category Fee Schedules: Equity Funds


Schedule 1
                                                   ------------------------------------------------------------------
CATEGORY ASSETS                   FEE RATE                                 Schedule 1 Funds:
First $1 billion                  0.5200%                         American Century Equity Growth Fund
Next $5 billion                   0.4600%                          American Century Global Gold Fund
Next $15 billion                  0.4160%                   American Century Global Natural Resources Fund
Next $25 billion                  0.3690%                        American Century Income & Growth Fund
Next $50 billion                  0.3420%                           American Century Utilities Fund
Next $150 billion                 0.3390%          ------------------------------------------------------------------
Thereafter                        0.3380%


Dated:  August 1, 1997

                                                       AMERICAN CENTURY GOVERNMENT INCOME TRUST
                                                       AMERICAN CENTURY INTERNATIONAL BOND FUNDS
AMERICAN CENTURY INVESTMENT MANAGEMENT, INC.           AMERICAN CENTURY QUANTITATIVE EQUITY FUNDS
                                                       AMERICAN CENTURY TARGET MATURITIES TRUST

As executed on behalf of the above in                  As executed on behalf of the above in
Exhibit A by                                           Exhibit A by
James E. Stowers III                                   James M. Benham
President and Chief Executive Officer                  President and Chief Executive Officer
</TABLE>
<PAGE>
                                    Exhibit D
                              Complex Fee Schedule

          Complex Assets                              Fee Rate
          --------------                              --------
          First $2.5 billion                          0.0600%
          Next $7.5 billion                           0.0500%
          Next $15.0 billion                          0.0485%
          Next $25.0 billion                          0.0470%
          Next $50.0 billion                          0.0460%
          Next $100.0 billion                         0.0450%
          Next $100.0 billion                         0.0440%
          Next $200.0 billion                         0.0430%
          Next $250.0 billion                         0.0420%
          Next $500.0 billion                         0.0410%
          Thereafter                                  0.0400%


Dated:  August 1, 1997
<TABLE>
<S>                                                    <C>
                                                       AMERICAN CENTURY GOVERNMENT INCOME TRUST
                                                       AMERICAN CENTURY INTERNATIONAL BOND FUNDS
AMERICAN CENTURY INVESTMENT MANAGEMENT, INC.           AMERICAN CENTURY QUANTITATIVE EQUITY FUNDS
                                                       AMERICAN CENTURY TARGET MATURITIES TRUST

As executed on behalf of the above in                  As executed on behalf of the above in
Exhibit A by                                           Exhibit A by
James E. Stowers III                                   James M. Benham
President and Chief Executive Officer                  President and Chief Executive Officer
</TABLE>

                MASTER DISTRIBUTION AND SHAREHOLDER SERVICES PLAN

                    AMERICAN CENTURY GOVERNMENT INCOME TRUST
                    AMERICAN CENTURY INTERNATIONAL BOND FUND
                    AMERICAN CENTURY TARGET MATURITIES TRUST
                   AMERICAN CENTURY QUANTITATIVE EQUITY FUNDS
                                 (THE "ISSUERS")
                                  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 series of the
         Issuers identified SCHEDULE A (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 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 Offering Advisor Class Shares

- ----------------------------------------------------------- --------------------
Issuer and Fund(s)                                            Date Plan Adopted
- ----------------------------------------------------------- --------------------
AMERICAN CENTURY GOVERNMENT INCOME TRUST
      Benham GNMA Fund                                         August 1, 1997
      Benham Intermediate-Term Treasury Fund                   August 1, 1997
      Benham Long-Term Treasury Fund                           August 1, 1997
      Benham Short-Term Government Fund                        August 1, 1997
      Benham Short-Term Treasury Fund                          August 1, 1997

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

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

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


                                      /s/James M. Benham
                                      James M. Benham
                                      President and Chief Executive Officer

                               POWER OF ATTORNEY

         KNOW ALL MEN BY THESE PRESENTS, that the undersigned,  AMERICAN CENTURY
TARGET MATURITIES TRUST, hereinafter called the "Trust" and certain trustees and
officers of the Trust, do hereby  constitute and appoint James M. Benham,  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 28th day of February, 1997.

                                 AMERICAN CENTURY BENHAM TARGET MATURITIES TRUST
                                (A Massachusetts Business Trust)

                                 By:/*/James M. Benham
                                    James M. Benham, President

SIGNATURE AND TITLE

/*/James M. Benham                                /*/Isaac Stein
James M. Benham                                   Isaac Stein
Chairman                                          Director

/*/Albert A. Eisenstat                            /*/Jeanne D. Wohlers
Albert A. Eisenstat                               Jeanne D. Wohlers
Director                                          Director

/*/Ronald J. Gilson                               /*/James E. Stowers, III
Ronald J. Gilson                                  James E. Stowers, III
Director                                          Director

/*/Myron S. Scholes                               /*/Maryanne Roepke
Myron S. Scholes                                  Maryanne Roepke
Director                                          Treasurer      

/*/Kenneth E. Scott
Kenneth E. Scott
Director                                        Attest:

                                                By:/*/Douglas A. Paul, Secretary
                                                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
                                 (THE "ISSUERS")


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>
<TABLE>
                                   SCHEDULE A
              Funds Covered by Multiclass Plan dated August 1, 1997

- ------------------------------------------------------------------ --------------- -------------- ----------------
                                                                      Investor        Advisor      Institutional
Fund                                                                   Class           Class           Class
- ------------------------------------------------------------------ --------------- -------------- ----------------
<S>                                                                 <C>            <C>            <C>  
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 GNMA Fund                                                         X               X
Benham Government Agency Money Market Fund                               X               X
Benham Intermediate-Term Treasury Fund                                   X               X
Benham International Bond Fund                                           X               X
Benham Long-Term Treasury Fund                                           X               X
Benham Short-Term Government 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:  August 1, 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
</TABLE>

<TABLE> <S> <C>

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<CIK> 0000757928
<NAME> BENHAM TARGET MATURITIES TRUST
<SERIES>
   <NUMBER> 1
   <NAME> BENHAM TARGET MATURITIES TRUST - 2000
       
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<INVESTMENTS-AT-VALUE>                            267,868,915
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<PAYABLE-FOR-SECURITIES>                                    0
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<OTHER-ITEMS-LIABILITIES>                             389,200
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<OVERDISTRIBUTION-NII>                                      0
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<OVERDISTRIBUTION-GAINS>                                    0
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<NET-ASSETS>                                      267,756,588
<DIVIDEND-INCOME>                                           0
<INTEREST-INCOME>                                  18,747,463
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<EXPENSES-NET>                                      1,512,558
<NET-INVESTMENT-INCOME>                            17,234,905
<REALIZED-GAINS-CURRENT>                            1,066,551
<APPREC-INCREASE-CURRENT>                          (6,811,361)
<NET-CHANGE-FROM-OPS>                              11,490,095
<EQUALIZATION>                                              0
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<NUMBER-OF-SHARES-REDEEMED>                         1,999,924
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<RETURNS-OF-CAPITAL>                                     0.00
<PER-SHARE-NAV-END>                                     79.95
<EXPENSE-RATIO>                                          0.53
<AVG-DEBT-OUTSTANDING>                                      0
<AVG-DEBT-PER-SHARE>                                     0.00
        


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<SERIES>
   <NUMBER> 2
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<S>                      <C>
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<SENIOR-EQUITY>                                              0
<PAID-IN-CAPITAL-COMMON>                           219,630,148
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<DIVIDEND-INCOME>                                            0
<INTEREST-INCOME>                                   15,071,147
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<EXPENSES-NET>                                       1,302,016
<NET-INVESTMENT-INCOME>                             13,769,131
<REALIZED-GAINS-CURRENT>                             1,459,753
<APPREC-INCREASE-CURRENT>                          (12,781,340)
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<EQUALIZATION>                                               0
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<DISTRIBUTIONS-OF-GAINS>                             2,276,770
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<CIK> 0000757928
<NAME> BENHAM TARGET MATURITIES TRUST
<SERIES>
   <NUMBER> 3
   <NAME> BENHAM TARGET MATUITIES TRUST - 2010
       
<S>                      <C>
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<NET-INVESTMENT-INCOME>                               6,720,988
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<NAME> BENHAM TARGET MATURITIES TRUST
<SERIES>
   <NUMBER> 4
   <NAME> BENHAM TARGET MATURITIES TRUST - 2015
       
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<NAME> BENHAM TARGET MATURITIES TRUST
<SERIES>
   <NUMBER> 5
   <NAME> BENHAM TARGET MATURITIES TRUST - 2020
       
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<PERIOD-END>                            SEP-30-1996
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<NAME> BENHAM TARGET MATURITIES TRUST
<SERIES>
   <NUMBER> 6
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<S>                      <C>
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</TABLE>


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