AMERICAN CENTURY TARGET MATURITIES TRUST
485APOS, 1998-11-13
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               SECURITIES AND EXCHANGE COMMISSION
                    Washington, D.C.   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. 29                                  [X]

                             and/or

REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940       [X]
     
     File No. 811-4165

     Amendment No. 31                                                 [X]

                        (Check appropriate box or boxes.)


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


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


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


            William M. Lyons, 4500 Main Street, Kansas City, MO 64111
       _________________________________________________________________
                     (Name and Address of Agent for Service)

         Approximate Date of Proposed Public Offering: January 12, 1999

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

     [ ] immediately upon filing pursuant to paragraph (b)
     [ ] on (date) pursuant to paragraph (b)
     [X] 60 days after filing pursuant to paragraph (a)(1)
     [ ] on (date) pursuant to paragraph (a)(1)
     [ ] 75 days after filing pursuant to paragraph (a)(2)
     [ ] on (date) pursuant to paragraph (a)(2) of rule 485.

If appropriate, check the following box:

     [ ] This post-effective amendment designates a new effective date for a 
         previously filed post-effective amendment.
<PAGE>
                        [american century logo(reg.sm)]
                                    AMERICAN
                                    CENTURY


                                   Prospectus

                                February 1, 1999

                                AMERICAN CENTURY

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

                                 Investor Class

The  Securities and Exchange  Commission  has not approved or disapproved  these
securities or determined if this Prospectus is truthful or complete.  Anyone who
tells you otherwise is committing a crime.

Distributed by Funds Distributor, Inc.



Dear Investor,

American  Century   prospectuses   have  a  new   personality,   highlighted  by
easy-to-read and easy-to-understand  language.  Designed with you, the investor,
in mind, the new prospectus provides comprehensive fund information that doesn't
get lost in lengthy,  technical  language.  As you read through this prospectus,
please take note of the many improvements we've made, especially:



o    A less-cluttered, larger-sized booklet

o    A new section that discusses a fund's risk and return potential

o    A new fund  performance  section  that shows a fund's  returns from year to
     year

o    Charts and tables  that help  illustrate  important  information  about the
     funds

o    Key information and definitions highlighted in the margins



The prospectus is your tool to understanding American Century funds. If you have
questions or comments about the prospectus, please give us a call. You can reach
one of our Investor Services  Representatives at 1-800-345-2021 weekdays, 7 a.m.
to 7 p.m. Central time.



Sincerely,





Table of Contents

An Overview of the Funds.......................................................2
Fees and Expenses..............................................................3
Detailed Information about the Funds...........................................4
          Target 2000 
          Target 2005 
          Target 2010 
          Target 2015 
          Target 2020 
          Target 2025
Basics of Fixed Income Investing...............................................8
Management....................................................................11
How to Invest in American Century.............................................14
Share Price and Distributions.................................................17
Taxes.........................................................................18
Multiple Class Information....................................................19
Financial Highlights..........................................................20
At Your Service...............................................................27


<TABLE>
<CAPTION>
                               Fund Reference

                                                                       Fund Code      Ticker    Newspaper Listing
- ------------------------------------------------------------------------------------------------------------------------------
<S>                                                                       <C>         <C>             <C> 
American Century Target Maturities Trust: 2000 .................          963          BTMTX          Tg2000
American Century Target Maturities Trust: 2005 .................          964          BTFIX          Tg2005
American Century Target Maturities Trust: 2010 .................          965          BTTNX          Tg2010
American Century Target Maturities Trust: 2015 .................          966          BTFTX          Tg2015
American Century Target Maturities Trust: 2020 .................          967          BTTTX          Tg2020
American Century Target Maturities Trust: 2025 .................          968          BTTRX          Tg2025
</TABLE>

********************LEFT MARGIN CALLOUTS************************
Throughout  this  book  you'll  find  definitions  to key  investment  terms and
phrases.  When you see a word printed in green italics,  look for its definition
in the left margin.

*        This symbol highlights special information and helpful tips.
********************END LEFT MARGIN CALLOUTS****************



An Overview of the Funds

What are the funds' investment goals?

These funds seek the highest return  consistent with investment in U.S. Treasury
securities.


What are the funds' primary investments and risks?

The funds invest in  zero-coupon  U.S.  Treasury  securities.  Each of the funds
invests in  different  types of these  municipal  debt  securities  and involves
different risks. The chart below shows the primary  differences among the funds.
Additional  important  information  about the funds'  investment  strategies and
risks begins on page 1.

Fund          Primary Investments                    Primary Risks
- ------------- -------------------------------------- ---------------------------

Target 2000   Zero-coupon U.S. Treasury securities   Lowest interest rate risk


Target 2005   Zero-coupon U.S. Treasury securities   Low interest rate risk


Target 2010   Zero-coupon U.S. Treasury securities   Interest rate risk


Target 2015   Zero-coupon U.S. Treasury securities   High interest rate risk


Target 2020   Zero-coupon U.S. Treasury securities   Higher interest rate risk


Target 2025   Zero-coupon U.S. Treasury securities   Highest interest rate risk


Who may want to invest in the funds?

The funds may be a good investment if you

o    are investing through an IRA or other tax-advantaged retirement plan

o    have long-term financial goals that correspond to the year in the name of a
     particular fund

o    are comfortable with fluctuating share prices, which increase as the fund's
     maturity year increases

o    are comfortable with the funds' other investment risks


Who may not want to invest in the funds?

The funds may not be a good investment if you are

o    seeking current tax-free income

o    a short-term investor

o    investing for long-term capital appreciation

o    looking for the added security of FDIC insurance


********************LEFT MARGIN CALLOUTS************************
An  investment  in the  funds  is  not a bank  deposit  and  is not  insured  or
guaranteed by the Federal Deposit Insurance  Corporation or any other government
agency.

********************END LEFT MARGIN CALLOUTS****************

                                       3



Fees and Expenses

There are no sales loads or fees or other charges

o    to buy fund shares directly from American Century

o    to reinvest dividends in additional shares

o    to exchange into the Investor Class shares of other American Century funds.

The following  tables describe the fees and expenses that you may pay if you buy
and hold shares of the funds.


Annual Operating Expenses (expenses that are deducted from fund assets)

              Management Fee1 Distribution and      Other     Total Annual Fund
                              Service (12b-1) Fees  Expenses2 Operating Expenses
- ------------- --------------- --------------------- --------- ------------------
Target 2000   0.59%           None                  0.01%     0.60%
Target 2005
Target 2010
Target 2015
Target 2020
Target 2025

1  Based upon fund  assets at October  31,  1998.  The funds have a stepped  fee
   schedule,  as a result, the funds' management fees generally decrease as fund
   assets increase.  Please consult the Statement of Additional  Information for
   more details about the funds' management fees.

Examples of Hypothetical Fund Costs

The  examples in the table  below are  intended to help you compare the costs of
investing in a fund with those of other mutual funds. Assuming you

o        invest $10,000 in the fund
o        redeem all of your shares at the end of the periods shown below
o        earn a 5% return each year and
o        incur the same operating expenses shown above,

your cost of investing in the fund would be:


              1 Year        3 Years       5 Years        10 Years
- ------------- ------------- ------------- -------------- --------------
- ------------- ------------- ------------- -------------- --------------
Target 2000   $61           $192          $335           $750
Target 2005
Target 2010
Target 2015
Target 2020
Target 2025
********************LEFT MARGIN CALLOUTS************************
*    Use this  example to compare  the costs of  investing  in other  funds.  Of
     course, your actual costs may be higher or lower.

********************END LEFT MARGIN CALLOUTS****************


Detailed Information about the Funds

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

What are the funds' investment objectives?

These funds seek the highest return  consistent with investment in U.S. Treasury
securities.  This  is  a  fundamental  policy  and  cannot  be  changed  without
shareholder approval.


How do the funds implement their investment objectives?

Each fund invests primarily in zero-coupon U.S. Treasury  securities.  Each fund
is  designed  to provide an  investment  experience  that is similar to a direct
investment in a zero coupon investment.


What are the differences between the funds?

Each fund is managed to mature in the year  identified  in its name;  therefore,
the funds' weighted average maturities are different. Funds with longer weighted
average maturities have the most volatile share prices. For example, Target 2000
has the shortest weighted average  maturity,  and its share price will fluctuate
the least.


What are zero coupon Treasury securities?

U.S.  Treasury bonds have a traditional  design:  interest is paid  periodically
until maturity,  when the principal is repaid. Zero coupon Treasury  securities,
however,  do not  make  any  periodic  interest  payments.  Instead,  all of the
interest and principal is paid when the securities mature.

Zero coupon Treasury securities are created by separating a traditional Treasury
bond's interest and principal parts. Each part can be used to create zero coupon
Treasury  securities.  Zero coupon Treasury  securities are created by financial
institutions  (like a  dealer),  the U.S.  Treasury  and other  agencies  of the
federal  government.  The important  characteristic  is that the final  maturity
value of a zero coupon Treasury security is supported by Treasury securities.

Zero coupon Treasury  securities are beneficial for investors who wish to invest
for a fixed  period of time at a selected  rate.  When an  investor  purchases a
traditional  bond, it is paid periodic  interest at a  predetermined  rate. This
interest payment must be reinvested elsewhere.  However, the investor may not be
able to  reinvest  this  interest  payment in an  investment  that has a similar
return  as the  bond.  This is  called  reinvestment  risk.  Since  zero  coupon
securities do not pay interest periodically, there is no reinvestment risk.


How is an  investment  in the  funds  like an  investment  in zero  coupon  U.S.
Treasury securities?

If you invest in a fund,  reinvest all  distributions and hold your shares until
the fund is liquidated, your investment experience will be similar to that of an
investment in a zero coupon U.S.  Treasury that matures at the end of the fund's
maturity  year.  Each fund is managed to provide an investment  return 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 advisor  calculates each fund's AGR and AVM on each business day. While many
factors can  influence  each fund's  daily AGR and AVM,  the AGR and AVM tend to
fluctuate  within narrow ranges.  The following  table shows how each fund's AVM
has fluctuated in the last five years.

********************LEFT MARGIN CALLOUTS************************

*    Weighted   average  maturity  is  a  measure  of  a  fund's  interest  rate
     sensitivity. It is discussed on page 12.


*    Because  all of the  interest  and  principal  is paid when the  securities
     mature,  zero coupon  securities  are bought and sold at prices below their
     face value.


The anticipated value at maturity is the calculated value of a fund's investment
portfolio. It is based on the maturity values of the fund's zero coupon Treasury
securities.

A fund's  anticipated  growth rate is a calculation  of the  annualized  rate of
growth that an investor may expect from the purchase  date to the fund's  target
maturity date.

********************END LEFT MARGIN CALLOUTS****************




Anticipated Values at Maturity

              9/30/94    9/30/95    9/30/96    9/30/97    9/30/98
- ------------- ---------- ---------- ---------- ---------- -----------
Target 2000   $100.86    $100.99    $101.10    $101.13    $XXX.XX
Target 2005    100.58     100.32     100.71     100.85     XXX.XX
Target 2010    101.38     101.02     102.53     103.40     XXX.XX
Target 2015    107.95     109.62     110.11     110.52     XXX.XX
Target 2020    102.11     102.31     103.60     104.84     XXX.XX
Target 2025       N/A        N/A     109.24     110.88     XXX.XX

What happens when a fund reaches its maturity year?

o    The advisor may begin to buy  traditional  Treasury  securities  consistent
     with the fund's investment objective and pending maturity.

o    As the fund's zero coupon Treasury  securities mature, the proceeds will be
     invested in Treasury bills.

o    In January of the year following maturity, the fund will be liquidated.


What are the primary risks of investing in the funds?

The funds are very sensitive to changes in interest  rates.  When interest rates
rise, the funds' share prices will rise more sharply than  traditional  Treasury
funds with similar maturities. This share price volatility is most pronounced in
the funds with longer weighted average maturities.  If you sell your shares when
their value is less than the price you paid, you will lose money.

While we recommend that  shareholders  hold their investment in the funds, we do
not restrict your (or any other shareholders')  ability to redeem shares. When a
fund's  shareholders  redeem  their  shares  before  the target  maturity  year,
unanticipated capital gains or losses may result. The fund will distribute these
capital gains and losses to all shareholders.

The funds are designed to provide an investment  that is similar to investing in
a zero coupon U.S.  Treasury security that matures in the year identified in its
name.  The advisor  adheres to  investment  policies that are designed to ensure
that this  happens.  However,  a precise  forecast of the fund's final  maturity
value and yield to maturity are not possible.

********************LEFT MARGIN CALLOUTS************************
*    This table is designed to show the narrow  ranges in which each fund's AVMs
     vary.  There is no guarantee  that the funds' AVMs will fluctuate as little
     in the future.

*    The  investment  performance  the funds is  designed  to be  similar  to an
     investment in an equivalent zero coupon U.S. Treasury security. However, an
     investment in the funds involves different risks.
********************END LEFT MARGIN CALLOUTS****************




Fund Performance History

The  performance  information  on this  page is  designed  to help  you how fund
returns can vary.  Keep in mind that past  performance  does not predict how the
funds will perform in the future.



Annual Total Returns

The  following  bar chart shows the  performance  of the funds'  Investor  Class
shares for each of the last 10 calendar years (or for each full year in the life
of the fund if less than 10 years).  It indicates  the  volatility of the funds'
historical returns from year to year.

BAR CHART:  Annual  total  returns for Target 2000,  Target  2005,  Target 2010,
Target 2015, Target 2020 and Target 2025. [Data currently unavailable]

********************LEFT MARGIN CALLOUTS************************
The funds' total  returns for the period from  January 1, 1998 to September  30,
1998 are:

Target 2000                X.XX%
Target 2005                X.XX%
Target 2010                X.XX%
Target 2015                X.XX%
Target 2020                X.XX%
Target 2025                X.XX%

********************END LEFT MARGIN CALLOUTS****************



Highest and Lowest Quarterly Returns

The  highest  and  lowest  returns  of the funds'  Investor  Class  shares for a
calendar  quarter  during the last 10 calendar  years (or during the life of the
fund if less than 10 years) are provided below to indicate the funds' historical
short-term volatility.

BAR CHART:  Highest and Lowest Quarterly  Returns for Target 2000,  Target 2005,
Target  2010,  Target  2015,  Target  2020  and  Target  2025.  [Data  currently
unavailable]


Average Annual Returns

The  following  table shows the average  annual  returns of the funds'  Investor
Class  shares for the periods  indicated  during the last 10 calendar  years.  A
benchmark is included for performance comparison.  The benchmark is an unmanaged
index that has no operating costs.


                                     1 year  5 years   10 years    Life of Fund*
- --------------------------------------------------------------------------------
Target 2000                          ?.??%   ?.??%     ?.??%       ?.??%
11/15/2000 Maturity STRIPS Issue     ?.??%   ?.??%     ?.??%       ?.??%
- --------------------------------------------------------------------------------
Target 2005                          ?.??%   ?.??%     ?.??%       ?.??%
11/15/2005 Maturity STRIPS Issue     ?.??%   ?.??%     ?.??%       ?.??%
- --------------------------------------------------------------------------------
Target 2010                          ?.??%   ?.??%     ?.??%       ?.??%
11/15/2010 Maturity STRIPS Issue     ?.??%   ?.??%     ?.??%       ?.??%
- --------------------------------------------------------------------------------
Target 2015                          ?.??%   ?.??%     ?.??%       ?.??%
11/15/2015 Maturity STRIPS Issue     ?.??%   ?.??%     ?.??%       ?.??%
- --------------------------------------------------------------------------------
Target 2020                          ?.??%   ?.??%     ?.??%       ?.??%
11/15/2020 Maturity STRIPS Issue     ?.??%   ?.??%     ?.??%       ?.??%
- --------------------------------------------------------------------------------
Target 2025                          ?.??%   ?.??%     ?.??%       ?.??%
11/15/2025 Maturity STRIPS Issue     ?.??%   ?.??%     ?.??%       ?.??%

*    The inception dates for the funds are: Target 2000,  Target 2005 and Target
     2010: March 25, 1985; Target 2015: September 1, 1986; Target 2020: December
     29, 1989; and Target 2025: February 16, 1996.

********************LEFT MARGIN CALLOUTS************************
[Chart Legend]
                   Target 2025

                   Target 2020

                   Target 2015

                   Target 2010

                   Target 2005

                   Target 2000

[Chart Legend]

             Highest Return

              Lowest Return

*    For current performance  information,  including yields,  please call us at
     1-800-345-2021    or    visit    American    Century's    Web    site    at
     www.americancentury.com.

********************END LEFT MARGIN CALLOUTS****************




Basics of Fixed Income Investing

Debt Securities

When a fund buys a debt security,  which is also called a fixed income security,
it is essentially  lending money to the issuer of the security.  Debt securities
also are referred to as fixed income securities.  Notes, bonds, commercial paper
and Treasury bills are examples of debt securities. After the issuer first sells
the debt security,  it may be bought and sold by other  investors.  The price of
the  security  may rise or fall  based on many  factors,  including  changes  in
interest rates, inflation and liquidity.

The advisor decides which debt securities to buy and sell by

o    determining which securities help a fund meet its maturity requirements

o    eliminating  securities  that  do  not  satisfy  a  fund's  credit  quality
     standards

o    evaluating  the  current  economic  conditions  and  assessing  the risk of
     inflation

o    evaluating  special  features of the securities  that may make them more or
     less attractive


Weighted Average Maturity

Like most loans,  debt  securities  eventually must be repaid (or refinanced) at
some date.  This date is called the maturity  date. The number of days left to a
debt  security's  maturity date is called the remaining  maturity.  The longer a
debt  security's  remaining  maturity,  the more  sensitive  it is to changes in
interest rates.

Because a bond fund will own many debt  securities,  the advisor  calculates the
average of the remaining  maturities of all of the debt securities the fund owns
to evaluate the interest rate sensitivity of the entire portfolio.  This average
is  weighted  according  to the size of the fund's  individual  holdings  and is
called weighted average maturity. The following chart shows how an advisor would
calculate  the  weighted  average  maturity  for a fund that owned only two debt
securities.

<TABLE>
                       Amount of Security Owned       Percent of Portfolio   Remaining Maturity      Weighted Maturity
- ---------------------- ------------------------------ ---------------------- ----------------------- ----------------------
<S>                    <C>                            <C>                    <C>                     <C>     
Debt Security A        $100,000                       25%                    1,000 days              250 days
Debt Security B        $300,000                       75%                    10,000 days             7500 days
Weighted Average 
  Maturity                                                                                           7750 days
</TABLE>

Types of Risk

The basic types of risk that the funds face are described below.

Interest Rate Risk

Generally,  interest  rates and the prices of debt  securities  move in opposite
directions.  So when  interest  rates fall,  the prices of most debt  securities
rise; when interest rates rise, prices fall.  Because the funds invest primarily
in  debt   securities,   changes  in  interest  rates  will  affect  the  funds'
performance.

The degree to which interest rate changes affect the funds'  performance  varies
and is related to the weighted average  maturity of the fund. For example,  when
interest  rates rise, you can expect the share value of a long-term bond fund to
fall more than that of a short-term  bond fund. When rates fall, the opposite is
true. This sensitivity to interest rate changes is called interest rate risk.

********************LEFT MARGIN CALLOUTS************************
*    Weighted  average  maturity is a tool that the advisor uses to  approximate
     the remaining maturity of a fund's investment portfolio.

*    The longer a fund's weighted average maturity,  the more sensitive it is to
     changes in interest rates.

********************END LEFT MARGIN CALLOUTS****************




When interest rates change, longer maturity bonds experience a greater change in
price.  The following  table shows the effect of a 1% increase in interest rates
on the price of 7% coupon bonds of differing maturities:

Remaining Maturity     Current Price  Price after 1% increase  Change in price
- ---------------------- -------------- ------------------------ ----------------
1 year                  $100.00           $99.06                   -0.94%
3 years                  100.00            97.38                   -2.62%
10 years                 100.00            93.20                   -6.80%
30 years                 100.00            88.69                  -11.31%

Credit Risk

Credit risk is the risk that an obligation won't be paid and a loss will result.
A high credit rating  indicates a high degree of confidence that the issuer will
be able to make interest and principal payments on time.

It's not as simple as buying the highest rated debt securities,  though.  Higher
credit ratings  usually mean lower interest  rates,  so investors often purchase
securities that aren't the highest-rated to increase return. If a fund purchases
lower-rated securities, it has assumed additional credit risk.

Liquidity Risk

Debt securities can become  difficult to sell for a variety of reasons,  such as
lack of an active trading market.  When a fund's investments become difficult to
sell, it is said to have a problem with  liquidity.  The chance that a fund will
have liquidity issues is called liquidity risk.


Inflation Risk

The safest investments usually have the lowest potential income and performance.
There is a risk,  then,  that the investment may fail to  significantly  outpace
inflation.  Even if the value of your  investment has not gone down,  your money
will  not  be  worth  as  much  as  if  there  had  been  no   inflation.   Your
after-inflation return may be quite small. This risk is called inflation risk.

********************LEFT MARGIN CALLOUTS************************

* Credit quality may be reduced when

o    the issuer has a less reliable cash flow

o    the issuer's finances are more sensitive to adverse economic  conditions or
     changing circumstances

o    the securities may be repaid after the issuer's other (more senior) debt.

o    the issuer has a shorter financial history

********************END LEFT MARGIN CALLOUTS****************




A Comparison of Basic Risk Factors

The  following  chart  depicts the basic risks of investing in the funds.  It is
designed to help you compare  these funds with each other;  it shouldn't be used
to compare these funds with other mutual funds.

               Interest Rate   Credit Risk    Liquidity Risk    Inflation Risk
               Risk
- -------------- --------------- -------------- ----------------- --------------
Target 2000    Lowest          Lowest         Lowest
Target 2005    Low             Lowest         Lowest
Target 2010    Medium          Lowest         Lowest
Target 2015    Medium          Lowest         Lowest
Target 2020    High            Lowest         Lowest
Target 2025    Highest         Lowest         Lowest

The funds  engage in a variety of  investment  techniques  as they pursue  their
investment objectives. Each technique has its own characteristics,  and may pose
some  level of risk to the funds.  If you would  like to learn more about  these
techniques,  you should review the Statement of  Additional  Information  before
making an investment.




Management

Who manages the funds?

The Board of Trustees, investment advisor and portfolio management team play key
roles in the management of the funds.


The Board of Trustees

The Board of Trustees  oversees the  management  of the funds and meets at least
quarterly  to  review  reports  about  fund  operations.  Although  the Board of
Trustees does not manage the funds, it has hired an investment advisor to do so.
More than half of the Trustees are independent of the funds'  advisor,  that is,
they are not employed by and have no financial interest in the advisor.


The Investment Advisor

The funds' investment  advisor is American Century Investment  Management,  Inc.
The  advisor  has been  managing  mutual  funds  since it was  founded  in 1958.
American  Century is headquartered  at 4500 Main Street,  Kansas City,  Missouri
64111.

The  advisor  manages  the  investment  portfolios  of the funds and directs the
purchase and sale of their investment securities.  The advisor also arranges for
transfer  agency,  custody  and all other  services  necessary  for the funds to
operate.

For the  services  it  provides  to the funds,  the  advisor  receives a unified
management fee based on a percentage of the average net assets of each fund. The
rate of the  management  fee for a fund is  determined  monthly using a two-step
formula  that takes into  account the fund's  strategy  (money  market,  bond or
equity) and the total  amount of mutual fund  assets the  advisor  manages.  The
Statement of Additional  Information  contains  detailed  information  about the
calculation  of the  management  fee.  Out of that  fee,  the  advisor  pays all
expenses of managing and operating the fund except  brokerage  expenses,  taxes,
interest, fees and expenses of the independent Trustees (including counsel fees)
and extraordinary expenses.

Fees Paid by the Funds to the Advisor in Most Recent Fiscal Year
- -----------------------------------------------------------------------------
Target 2000                                                      X.XX%
Target 2005                                                      X.XX%
Target 2010                                                      X.XX%
Target 2015                                                      X.XX%
Target 2020                                                      X.XX%
Target 2025                                                      X.XX%




The Portfolio Management Team

The advisor uses teams of portfolio  managers,  assistant portfolio managers and
analysts to manage the funds.  Teams meet regularly to review portfolio holdings
and to discuss purchase and sale activity.  Team members buy and sell securities
for a fund as they  see fit,  guided  by the  fund's  investment  objective  and
strategy.

Portfolio manager members of the investment team include:

David Schroeder
Mr. Schroeder, Vice President, joined the advisor in 1990 and has been primarily
responsible for the day-to-day operations of the Target funds since July 1990.


Jeremy Fletcher
Mr. Fletcher,  Associate  Portfolio Manager,  joined the advisor in 1991 and has
been a member of the team that manages the Target funds since August 1997.

********************LEFT MARGIN CALLOUTS************************

*    Code of Ethics

     American Century has a Code of Ethics designed to ensure that the interests
     of fund shareholders come before the interests of the people who manage the
     funds.  Among  other  provisions,  the Code of Ethics  prohibits  portfolio
     managers  and other  investment  personnel  from  buying  securities  in an
     initial public offering or from profiting from the purchase and sale of the
     same  security  within 60 calendar  days.  In addition,  the Code of Ethics
     requires  portfolio managers and other employees with access to information
     about the purchase or sale of  securities  by the funds to obtain  approval
     before executing permitted personal trades.



********************END LEFT MARGIN CALLOUTS****************




Fundamental Investment Policies

Fundamental  investment  policies  contained  in  the  Statement  of  Additional
Information  and the  investment  objectives  of the  funds  may not be  changed
without a shareholder  vote. The Board of Trustees may change any other policies
and investment strategies.


Year 2000 Issues

Many of the world's  computer  systems  currently  cannot properly  recognize or
process date-sensitive information relating to the Year 2000 and beyond. Because
this may impact the computer systems of various American  Century-affiliated and
external service providers for the funds,  American Century formally initiated a
Year 2000  readiness  project in July 1997.  It  involves a team of  information
technology  professionals  assisted  by  outside  consultants  and  guided  by a
senior-level steering committee.  The team's goal is to assess the impact of the
Year 2000 on  American  Century's  systems,  renovate  or  replace  noncompliant
critical systems and test those systems. In addition,  the team has been working
to gather  information  about the Year 2000  efforts of the funds'  other  major
service providers.  Although American Century believes its critical systems will
function  properly in the Year 2000, this is not  guaranteed.  If the efforts of
American  Century or its external  service  providers  are not  successful,  the
funds'  business,  particularly  the provision of shareholder  services,  may be
hampered.

In  addition,  the  issuers  of  securities  the funds own could  have Year 2000
computer  problems.  These problems could  negatively  affect the value of their
securities, which, in turn, could impact the funds' performance. The advisor has
established a process to gather publicly  available  information  about the Year
2000  readiness  of these  issuers.  However,  this  process may not uncover all
relevant  information,  and the  information  gathered  may not be complete  and
accurate.  Moreover, an issuer's Year 2000 readiness is only one of many factors
the advisor may consider when making investment decisions, and other factors may
receive greater weight.




How to Invest in American Century

Services Automatically Available to You

You  automatically  will have access to the services  listed below when you open
your account.  If you do not want these services,  see  "Conducting  Business in
Writing" below.


Conducting Business in Writing

If you prefer to conduct  business in writing only, you can indicate this on the
account  application.  If you choose to do  business in writing  only,  you must
provide written instructions to invest,  exchange and redeem. All account owners
must sign transaction  instructions (with signatures  guaranteed for redemptions
in excess of $100,000).  If you want to add services later,  you can complete an
Investor Service Options form.

<TABLE>
Ways to Manage Your Account
- ---------------------------------------------------------------------------------------------------------------------------------
- -------------------------------- ------------------------------------------------ -----------------------------------------------
<S>                              <C>                                              <C>
By telephone                     Open an account                                  Make additional investments
1800 345-2021                    If you are a current investor, you can           Call us or use our Automated Information Line
7 a.m. to 7 p.m.                 open an account by exchanging shares             if you have authorized us to withdraw from
Central time                     from another American Century account.           your bank account.
                                 (This service is not available if you
Automated \information Line      have chosen to do business in writing            Sell shares
1-800-345-8765                   only.)                                           Call an Investor Services Representative.
24 hours
                                 Exchange shares  
                                 Call us or use our Automated
                                 Information Line if you have authorized us to
                                 accept telephone instructions.


- -------------------------------- ------------------------------------------------ -----------------------------------------------
- -------------------------------- ------------------------------------------------ -----------------------------------------------
By mail or fax                   Open an account                                  Make additional investments
PO Box 419200                    Send a signed and completed application          Send us your check or money order for at
Kansas City, MO 64141-6200       and check or money order payable to              least $50 with an investment slip or $250
Fax 816 340-7962                 American Century Investments.                    without an investment slip. If you don't have
                                                                                  an investment slip, include your name,
                                 Exchange shares                                  address, and account number on your check or
                                 Send us written instructions to                  money order.
                                 exchange your shares from one American
                                 Century account to another.                      Sell shares
                                                                                  Send us written instructions to sell shares
                                                                                  or send us a redemption form. Call an
                                                                                  Investor Services Representative to request a
                                                                                  form.
- -------------------------------- ------------------------------------------------ -----------------------------------------------
- -------------------------------- ------------------------------------------------ -----------------------------------------------
Online                           Open an account                                  Make additional investments
www.americancentury.com          If you are a current investor, you can           Follow the wire instructions provided in the
                                 open an account by exchanging shares             Open an account section
                                 from another American Century account.
                                 (This service is not available if you            Sell shares
                                 have chosen to do business in writing            Not available.
                                 only.)

                                 Exchange shares
                                 Exchange shares from another  American  Century
                                 account.

</TABLE>



A Note About Mailings to Shareholders

To reduce expenses and demonstrate respect for our environment,  we will deliver
most financial  reports,  prospectuses and account statements to households in a
single  envelope,  even if the accounts are registered under different names. If
you would like  additional  copies of  financial  reports  and  prospectuses  or
separate mailing of account statements, please call us.


Your Guide to Services and Policies

When you open an account,  you will receive an Investor  Services  Guide,  which
explains  the  services  available  to you and the  policies of the fund and the
transfer agent.




<TABLE>
<S>                            <C>                                               <C>
By wire                          Open an account                                  Make additional investments
Commerce Bank N.A.               Call us to set up your account or mail           Follow the wire instructions provided in the
Routing No. 101000019            a completed application to the address           Open an account section
ACMF Account No. 2804918         provided above and give your bank:
                                                                                  Sell shares
                                 o        The fund name                           You can receive redemption proceeds by
                                 o        Your American Century account number    wire or electronic transfer. (This
*    Please remember that        o        Name of the investor                    service is not available if you have
     if you request              o        The contribution year (for IRAs only)   chosen to do business in writing only.)
     redemptions by wire, $10
     will be deducted from the   Exchange shares
     amount wired. Your bank     Not available.
     also may charge a fee.

- -------------------------------- ------------------------------------------------ -----------------------------------------------
- -------------------------------- ------------------------------------------------ -----------------------------------------------
Automatically                    Open an account                                  Make additional investments
                                 Not available.                                   Select "Establish Automatic Investments" on
                                                                                  your application to make automatic purchases
                                 Exchange shares                                  of shares on a regular basis. You must invest
                                 Send us written instructions to                  at least $600 per year per account.
                                 exchange your shares from one American
                                 Century account to another.                      Sell shares
                                                                                 
                                                                                  If you have at least $10,000 in your 
                                                                                  account, sell shares automatically 
                                                                                  by Check-a-Month, or by Automatic Redemption.


- -------------------------------- ------------------------------------------------ -----------------------------------------------
- -------------------------------- ------------------------------------------------------------------------------------------------
In Person                        If you prefer to handle your transactions in person, visit one of
                                 our Investor  Centers and a  representative  can help you open an
                                 account,  make additional  investments,  sell or exchange shares.
                                 Here are the Investor Centers you can visit                      
                                 
               
                                 4500 Main Street                        4917 Town Center Dr.
                                 Kansas City, Missouri                   Leawood, Kansas

                                 1665 Charleston Road                    2000 S. Colorado Blvd.
                                 Mountain View, California               Denver, Colorado
</TABLE>




Minimum Initial Investment Amounts

To open an account the minimum investment is as follows              Other funds
- --------------------------------------------------------------------------------
Individual or Joint                                                       $5,000
Traditional IRA                                                           $1,000
Roth IRA                                                                  $1,000
Education IRA                                                               $500
UGMA/UTMA                                                                 $1,000
403(b)                                                                No minimum

Redemption of shares in low-balance accounts

If your account falls below the minimum  balance we will notify you and give you
90 days to meet the minimum or, for most types of equity accounts,  to establish
an  automatic  monthly  investment.  If you do not meet the  deadline,  American
Century  will  redeem the shares in the  account  and send the  proceeds to your
address of record.


Investing Through Financial Intermediaries

If you do business  with us through a  financial  intermediary  or a  retirement
plan,  your ability to purchase,  exchange and redeem  shares will depend on the
policies of that entity. Some policy differences may include

o        minimum investment requirements
o        exchange policies
o        fund choices
o        cut-off time for investments

Please  contact  your  financial  intermediary  or plan  sponsor  for a complete
description  of its policies.  Copies of the funds' annual  reports,  semiannual
reports  and  Statements  of  Additional  Information  are  available  from your
intermediary or plan sponsor.

Certain  financial   intermediaries  perform  recordkeeping  and  administrative
services  for their  clients  that would  otherwise  be  performed  by  American
Century's transfer agent. In some  circumstances,  American Century will pay the
service provider a fee for performing those services.

Although  transactions in fund shares may be made directly with American Century
at no charge,  you also may purchase,  redeem and exchange  fund shares  through
financial  intermediaries that charge a transaction-based or other fee for their
services. Those charges are retained by the intermediary and are not shared with
American Century or the funds.

American Century has contracts with certain  financial  intermediaries  in which
they represent that they will track the time investment orders are received. The
funds have  authorized  those  intermediaries  to accept  orders on each  funds'
behalf up to the time net asset value is determined.  Such orders will be priced
at the net asset value next determined after acceptance of the order on a fund's
behalf.

********************LEFT MARGIN CALLOUTS************************
* Financial intermediaries include bankers, broker-dealers,  insurance companies
and investment advisors.

********************END LEFT MARGIN CALLOUTS****************



Share Price and Distributions

Share Price

We determine the net asset value of the funds as of one hour before the close of
regular trading on the New York Stock Exchange  (usually 3 p.m. Eastern time) on
each day the Exchange is open.  On days when the Exchange is not open, we do not
calculate  the net  asset  value.  The net  asset  value of a fund  share is the
current value of the fund's investments,  minus any liabilities,  divided by the
number of fund shares outstanding.

If current prices of securities  owned by a fund are not readily  available from
an independent  pricing  service,  the advisor may determine their fair value in
accordance with procedures  adopted by the fund's Board of Trustees.  Trading of
securities  in foreign  markets may not take place on every day the  Exchange is
open.  Also,  trading in some  foreign  markets  may take place on  weekends  or
holidays  when a fund's net asset  value is not  calculated.  So, the value of a
fund's  portfolio  may be  affected  on days when you can't  purchase  or redeem
shares of the fund.

We will price your purchase,  exchange or redemption at the net asset value next
determined after we receive your transaction request in good order.


Distributions

Federal tax laws require each fund to make  distributions  to its  shareholders.
The  distributions  generally  consist of dividends  and interest  received by a
fund,  as well as capital gains  realized on the sale of investment  securities.
Each fund pays distributions from net income quarterly. Each fund generally pays
distributions  of  capital  gains,  if any,  once a year.  A fund may make  more
frequent distributions if necessary to avoid taxes.

You will begin to participate in fund  distributions the day after your purchase
is effective.  If you redeem shares, you will receive the distribution  declared
for  the day  you  redeem.  If you  redeem  all  shares,  we  will  include  the
distribution on the redeemed with your redemption proceeds.

Participants in employer-sponsored retirement or savings plans must reinvest all
distributions.  For shareholders  investing  through taxable  accounts,  we will
reinvest  distributions unless you elect to receive them in cash. Please consult
our Investor Services Guide for further information regarding  distributions and
your distribution options.

********************LEFT MARGIN CALLOUTS************************

The net asset value of a fund is the price of the fund's shares.


********************END LEFT MARGIN CALLOUTS****************



Taxes

Tax-Deferred Accounts

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

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


Taxable Accounts

Fund   distributions   are  taxable  to  most   investors.   The  taxability  of
distributions  is not  affected by how long you have been in the fund or whether
you reinvest your distributions or take them in cash. In general,  distributions
are taxable as follows:

<TABLE>
Type of distribution     Tax rate for 15% bracket     Tax rate for 28% bracket or above
- ------------------------ ---------------------------- --------------------------------------
<S>                        <C>                       <C>
Income                     Ordinary income rate              Ordinary income rate
Short-term capital gains   Ordinary income rate              Ordinary income rate
Long-term capital gains             10%                              20%
</TABLE>

American  Century  will  detail  the tax status of fund  distributions  for each
calendar year in an annual tax statement from the fund.

Distributions may also be subject to state and local taxes.  Because  everyone's
tax situation is unique,  always  consult your tax  professional  about federal,
state and local tax consequences.

Taxes on transactions. Your redemptions -- including exchanges to other American
Century funds -- are subject to capital gains tax. A capital gain or loss is the
difference  between the cost of your  shares and the price you receive  when you
sell them.

The table above can provide a general  guide for your  potential  tax  liability
when selling or exchanging fund shares. "Short-term capital gains," are gains on
fund shares held less than or equal to 12 months. "Long-term capital gains," are
gains on fund shares held for more than 12 months.

********************LEFT MARGIN CALLOUTS************************

*    Buying a Dividend

     Purchasing  fund shares in a taxable  account shortly before a distribution
     is sometimes  known as "buying a dividend." In taxable  accounts,  you must
     pay income taxes on the  distribution  whether you take the distribution in
     cash or  reinvest  it.  In  addition,  you  will  have to pay  taxes on the
     distribution whether the value of your investment  decreased,  increased or
     remained the same after you bought the fund shares.

     The risk in  buying a  dividend  is that a fund's  portfolio  may  build up
     taxable  gains  throughout  the  period  covered  by  a  distribution,   as
     securities are sold at a profit.  We distribute  those gains to your, after
     subtracting  any losses,  even if you did not own the shares when the gains
     occurred.

     Thus  if you buy a  divided,  you  incur  the  full  tax  liability  of the
     distribution  period,  but you may not enjoy the full  benefit of the gains
     realized in the fund's portfolio.


********************END LEFT MARGIN CALLOUTS****************



Multiple Class Information

American  Century may offer up to three  classes of the funds:  Investor  Class,
Institutional Class and Advisor Class. The shares offered by this Prospectus are
Investor Class shares and have no up-front or deferred charges,  commissions, or
12b-1 fees.

American  Century offers the other classes of shares  primarily to institutional
investors,    through    institutional    distribution    channels,    such   as
employer-sponsored  retirement  plans,  or  through  banks,  broker-dealers  and
insurance  companies.  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  advisor  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 us
at  1-800-345-3533 or contact a sales  representative or financial  intermediary
who offers those classes of shares.

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,  (d) each class may
have different exchange privileges,  and (e) the Institutional Class may provide
for automatic  conversion  from that class into shares of the Investor  Class of
the same fund.



Financial Highlights

Understanding the Financial Highlights

This table  itemizes what  contributed  to the changes in share price during the
period,  and compares  this to changes over the last five fiscal years (or less,
if the share class is not five years old).

On a per-share basis, it includes:

o        share price at the beginning of the period
o        investment income and capital gains or losses
o        distributions of income and capital gains paid to shareholders
o        share price at the end of the period

It also includes some key statistics for the period:

o    total return--the  overall  percentage of return of the fund,  assuming the
     reinvestment of all distributions
o    expense ratio--operating expenses as a percentage of average net assets
o    net income  ratio--net  investment  income as a  percentage  of average net
     assets
o    portfolio  turnover--the  percentage  of  the  fund's  buying  and  selling
     activity


The  Financial  Highlights  have been  audited by  PricewaterhouseCoopers,  LLP,
independent  auditors.  Their report is in the funds'  annual  report,  which is
incorporated by reference into the Statement of Additional  Information,  and is
available  upon  request.   Prior  years'   information  was  audited  by  other
independent auditors.




Target 2000
                                            1998    1997    1996    1995   1994
PER-SHARE DATA
Net Asset Value, Beginning of Year
                                          -------- ------- ------- ------ ------
Income from Investment Operations
   Net Investment Income (dividends)
   Net Realized and Unrealized 
   Gain (Loss) on Investment Transactions
                                          -------- ------- ------- ------ ------
   Total From Investment Operations
                                          -------- ------- ------- ------ ------
Less Distributions
   From Net Investment Income 
   (dividends)
   
   From Net Realized Gains on 
   Investment Transactions
                                          -------- ------- ------- ------ ------
                                          -------- ------- ------- ------ ------
   Total Distributions
                                          -------- ------- ------- ------ ------
Net Asset Value, End of Year
                                          -------- ------- ------- ------ ------
Total Return(1)

Ratio of Operating Expenses to 
Average Net Assets

Ratio of Net Investment Income 
to Average Net Assets

Portfolio Turnover Rate
Net Assets, End of Year 
(in thousands)

(1) Total return assumes reinvestment of dividends and capital gains, if any.





Target 2005
                                            1998    1997    1996    1995   1994
PER-SHARE DATA
Net Asset Value, Beginning of Year
                                          -------- ------- ------- ------ ------
Income from Investment Operations
   Net Investment Income (dividends)
   Net Realized and Unrealized 
   Gain (Loss) on Investment Transactions
                                          -------- ------- ------- ------ ------
   Total From Investment Operations
                                          -------- ------- ------- ------ ------
Less Distributions
   From Net Investment Income 
   (dividends)
   
   From Net Realized Gains on 
   Investment Transactions
                                          -------- ------- ------- ------ ------
                                          -------- ------- ------- ------ ------
   Total Distributions
                                          -------- ------- ------- ------ ------
Net Asset Value, End of Year
                                          -------- ------- ------- ------ ------
Total Return(1)

Ratio of Operating Expenses to 
Average Net Assets

Ratio of Net Investment Income 
to Average Net Assets

Portfolio Turnover Rate
Net Assets, End of Year 
(in thousands)

(1) Total return assumes reinvestment of dividends and capital gains, if any.






Target 2010
                                            1998    1997    1996    1995   1994
PER-SHARE DATA
Net Asset Value, Beginning of Year
                                          -------- ------- ------- ------ ------
Income from Investment Operations
   Net Investment Income (dividends)
   Net Realized and Unrealized 
   Gain (Loss) on Investment Transactions
                                          -------- ------- ------- ------ ------
   Total From Investment Operations
                                          -------- ------- ------- ------ ------
Less Distributions
   From Net Investment Income 
   (dividends)
   
   From Net Realized Gains on 
   Investment Transactions
                                          -------- ------- ------- ------ ------
                                          -------- ------- ------- ------ ------
   Total Distributions
                                          -------- ------- ------- ------ ------
Net Asset Value, End of Year
                                          -------- ------- ------- ------ ------
Total Return(1)

Ratio of Operating Expenses to 
Average Net Assets

Ratio of Net Investment Income 
to Average Net Assets

Portfolio Turnover Rate
Net Assets, End of Year 
(in thousands)

(1) Total return assumes reinvestment of dividends and capital gains, if any.




Target 2015
                                            1998    1997    1996    1995   1994
PER-SHARE DATA
Net Asset Value, Beginning of Year
                                          -------- ------- ------- ------ ------
Income from Investment Operations
   Net Investment Income (dividends)
   Net Realized and Unrealized 
   Gain (Loss) on Investment Transactions
                                          -------- ------- ------- ------ ------
   Total From Investment Operations
                                          -------- ------- ------- ------ ------
Less Distributions
   From Net Investment Income 
   (dividends)
   
   From Net Realized Gains on 
   Investment Transactions
                                          -------- ------- ------- ------ ------
                                          -------- ------- ------- ------ ------
   Total Distributions
                                          -------- ------- ------- ------ ------
Net Asset Value, End of Year
                                          -------- ------- ------- ------ ------
Total Return(1)

Ratio of Operating Expenses to 
Average Net Assets

Ratio of Net Investment Income 
to Average Net Assets

Portfolio Turnover Rate
Net Assets, End of Year 
(in thousands)

(1) Total return assumes reinvestment of dividends and capital gains, if any.





Target 2020
                                            1998    1997    1996    1995   1994
PER-SHARE DATA
Net Asset Value, Beginning of Year
                                          -------- ------- ------- ------ ------
Income from Investment Operations
   Net Investment Income (dividends)
   Net Realized and Unrealized 
   Gain (Loss) on Investment Transactions
                                          -------- ------- ------- ------ ------
   Total From Investment Operations
                                          -------- ------- ------- ------ ------
Less Distributions
   From Net Investment Income 
   (dividends)
   
   From Net Realized Gains on 
   Investment Transactions
                                          -------- ------- ------- ------ ------
                                          -------- ------- ------- ------ ------
   Total Distributions
                                          -------- ------- ------- ------ ------
Net Asset Value, End of Year
                                          -------- ------- ------- ------ ------
Total Return(1)

Ratio of Operating Expenses to 
Average Net Assets

Ratio of Net Investment Income 
to Average Net Assets

Portfolio Turnover Rate
Net Assets, End of Year 
(in thousands)

(1) Total return assumes reinvestment of dividends and capital gains, if any.





Target 2025
                                            1998    1997    1996    1995   1994
PER-SHARE DATA
Net Asset Value, Beginning of Year
                                          -------- ------- ------- ------ ------
Income from Investment Operations
   Net Investment Income (dividends)
   Net Realized and Unrealized 
   Gain (Loss) on Investment Transactions
                                          -------- ------- ------- ------ ------
   Total From Investment Operations
                                          -------- ------- ------- ------ ------
Less Distributions
   From Net Investment Income 
   (dividends)
   
   From Net Realized Gains on 
   Investment Transactions
                                          -------- ------- ------- ------ ------
                                          -------- ------- ------- ------ ------
   Total Distributions
                                          -------- ------- ------- ------ ------
Net Asset Value, End of Year
                                          -------- ------- ------- ------ ------
Total Return(1)

Ratio of Operating Expenses to 
Average Net Assets

Ratio of Net Investment Income 
to Average Net Assets

Portfolio Turnover Rate
Net Assets, End of Year 
(in thousands)

(1) Total return assumes reinvestment of dividends and capital gains, if any.





At Your Service

Make virtually any transaction online

The next time  you're  surfing  the Net,  stop by  American  Century's  Web site
(www.americancentury.com),   which  can  make  managing  your  American  Century
portfolio  easier.  Current  shareholders  can open new  accounts by  exchanging
shares (provided the account registration does not change). In addition, you can
view  transactions  and check  your  account  balances . You can also sign up to
receive annual updates to your  prospectuses  and financial  reports via the Net
instead of the through the mail.


Expand your investment options with American Century Brokerage

If  you're  looking  for  a  wide  range  of  investment  options--from  trading
individual  securities  to  purchasing  mutual  funds  offered  by  hundreds  of
companies--look to American Century Brokerage. With this new investment service,
you  can  take  advantage  of  24-hour  trading  on our Web  site or  TeleSelect
automated  telephone  service.  Or, if you prefer,  you can do business directly
with a Brokerage Associate. With service features including a Gold MasterCard(R)
ATM/Debit Card,  unlimited  CheckWriting and cost basis reporting (all available
with the American Century  Brokerage  Access Account sm), our brokerage  service
can simplify your life now while you prepare  financially for the years to come.
For  information  about  opening a  brokerage  account,  please call an American
Century Brokerage Associate at 1-888-345-2071.


Send your distributions straight to the bank

If you opt to have your dividend and capital gain  distributions  paid to you in
cash rather than  reinvesting  them into your  account,  consider an  electronic
transfer  to your  bank  account.  It will save you time and a trip to the bank.
Call an Investor Services Representative for more information.


Check out our library

Are you looking for additional information on bond basics? Or, are you trying to
decide if municipal bonds have a place in your portfolio? Perhaps you would like
to test your knowledge of bonds and how they work. These are subjects covered in
our Financial FYI library that are  available to you.  Financial  FYI, a growing
library of one-page  resources,  clearly and quickly explains various  financial
subjects to help you make informed decisions.  To request one of these articles,
call an Investor Services Representative.



More information about the funds is contained in these documents:

Annual and Semiannual  Reports.  Contain more information  about about the funds
investments   and  the  market   conditions  and  investment   strategies   that
significantly  affected the fund's  performance during the most recent six-month
fiscal period.

Statement of Additional Information. Contains a more detailed, legal description
of the funds' operations,  investment restrictions,  policies and practices. The
SAI is  incorporated  by reference into this  Prospectus.  This means that it is
legally part of this Prospectus, even if you don't request a copy.
                                                                  
                                                                  
You can also get information (including the the fund's SAI) from the SEC.

*    In person.  Go to the SEC's Public Reference Room in Washington,  D.C. Call
     1-800-SEC-0330 for information about location and hours of operation.

*    On the internet. Go to www.sec.gov.
                                                          
*    By mail. Write to Public  Reference  Section of the Securities and Exchange
     Commission,  Washington,  D.C.  20549-6009.  The SEC will  charge a fee for
     copying the documents you request.

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



 American Century Investments      Fax
 P.O. Box 419200                   816-340-7962
 Kansas City, Missouri 64141-6200
                                   Telecommunications Device for the Deaf
 Investor Services                 1-800-634-4113 or 816-444-3485
 1-800-345-2021 or 816-531-5575
                                   Institutional, Corporate, Keogh,
 Automated Information Line        SEP/SARSEP, SIMPLE and 403(b) Services
 1-800-345-8765                    1-800-345-3533

 www.americancentury.com


Investment Company Act File Number 811-XXXX              Funds Distributor, Inc.
<PAGE>
                        [american century logo(reg.sm)]
                                    AMERICAN
                                    CENTURY



                                   Prospectus



                                February 1, 1999



                                AMERICAN CENTURY

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

                                 Advisor Class

The  Securities and Exchange  Commission  has not approved or disapproved  these
securities or determined if this Prospectus is truthful or complete.  Anyone who
tells you otherwise is committing a crime.

Distributed by Funds Distributor, Inc.





Dear Investor,

American  Century   prospectuses   have  a  new   personality,   highlighted  by
easy-to-read and easy-to-understand  language.  Designed with you, the investor,
in mind, the new prospectus provides comprehensive fund information that doesn't
get lost in lengthy,  technical  language.  As you read through this prospectus,
please take note of the many improvements we've made, especially:



o    A less-cluttered, larger-sized booklet

o    A new section that discusses a fund's risk and return potential

o    A new fund  performance  section  that shows a fund's  returns from year to
     year

o    Charts and tables  that help  illustrate  important  information  about the
     funds

o    Key information and definitions highlighted in the margins



The prospectus is your tool to understanding American Century funds. If you have
questions or comments about the prospectus, please give us a call. You can reach
one of our Investor Services  Representatives at 1-800-345-2021 weekdays, 7 a.m.
to 7 p.m. Central time.



Sincerely,








Table of Contents
An Overview of the Funds..............................................2
Fees and Expenses.....................................................3
Detailed Information about the Funds..................................4
     Target 2000 
     Target 2005 
     Target 2010 
     Target 2015 
     Target 2020 
     Target 2025
Basics of Fixed Income Investing......................................8
Management...........................................................11
How to Invest in American Century....................................14
Share Price and Distributions........................................17
Taxes................................................................18
Multiple Class Information...........................................19
Financial Highlights.................................................20
At Your Service......................................................27


                               Fund Reference

                                                 Fund Code   Ticker    Newspaper
                                                                        Listing
- --------------------------------------------------------------------------------
American Century Target Maturities Trust: 2000     963        BTMTX     Tg2000
American Century Target Maturities Trust: 2005     964        BTFIX     Tg2005
American Century Target Maturities Trust: 2010     965        BTTNX     Tg2010
American Century Target Maturities Trust: 2015     966        BTFTX     Tg2015
American Century Target Maturities Trust: 2020     967        BTTTX     Tg2020
American Century Target Maturities Trust: 2025     968        BTTRX     Tg2025


********************LEFT MARGIN CALLOUTS************************
Throughout  this  book  you'll  find  definitions  to key  investment  terms and
phrases.  When you see a word printed in green italics,  look for its definition
in the left margin.

*        This symbol highlights special information and helpful tips.
********************END LEFT MARGIN CALLOUTS****************





An Overview of the Funds

What are the funds' investment goals?

These funds seek the highest return  consistent with investment in U.S. Treasury
securities.


What are the funds' primary investments and risks?

The funds invest in  zero-coupon  U.S.  Treasury  securities.  Each of the funds
invests in  different  types of these  municipal  debt  securities  and involves
different risks. The chart below shows the primary  differences among the funds.
Additional  important  information  about the funds'  investment  strategies and
risks begins on page 1.

Fund           Primary Investments                    Primary Risks
- -------------- -------------------------------------- --------------------------
Target 2000    Zero-coupon U.S. Treasury securities   Lowest interest rate risk

Target 2005    Zero-coupon U.S. Treasury securities   Low interest rate risk

Target 2010    Zero-coupon U.S. Treasury securities   Interest rate risk

Target 2015    Zero-coupon U.S. Treasury securities   High interest rate risk

Target 2020    Zero-coupon U.S. Treasury securities   Higher interest rate risk

Target 2025    Zero-coupon U.S. Treasury securities   Highest interest rate risk


Who may want to invest in the funds?

The funds may be a good investment if you

*    are investing through an IRA or other tax-advantaged retirement plan
*    have long-term financial goals that correspond to the year in the name of a
     particular fund
*    are comfortable with fluctuating share prices, which increase as the fund's
     maturity year increases
*    are comfortable with the funds' other investment risks


Who may not want to invest in the funds?

The funds may not be a good investment if you are

*        seeking current tax-free income
*        a short-term investor
*        investing for long-term capital appreciation
*        looking for the added security of FDIC insurance


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An  investment  in the  funds  is  not a bank  deposit  and  is not  insured  or
guaranteed by the Federal Deposit Insurance  Corporation or any other government
agency.

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Fees and Expenses
There are no sales loads or fees or other charges

o    to buy fund shares directly from American Century

o    to reinvest dividends in additional shares

o    to exchange into the Advisor Class shares of other American Century funds.

The following  tables describe the fees and expenses that you may pay if you buy
and hold shares of the funds.


Annual Operating Expenses (expenses that are deducted from fund assets)

              Management Fee1 Distribution and     Other     Total Annual Fund
                              Service (12b-1) Fees Expenses2 Operating Expenses
- ------------- --------------- -------------------- --------- ------------------
Target 2000   0.59%           None                 0.01%     0.60%
Target 2005
Target 2010
Target 2015
Target 2020
Target 2025

1  Based upon fund  assets at October  31,  1998.  The funds have a stepped  fee
   schedule,  as a result, the funds' management fees generally decrease as fund
   assets increase.  Please consult the Statement of Additional  Information for
   more details about the funds' management fees.

Examples of Hypothetical Fund Costs

The  examples in the table  below are  intended to help you compare the costs of
investing in a fund with those of other mutual funds. Assuming you

o        invest $10,000 in the fund
o        redeem all of your shares at the end of the periods shown below
o        earn a 5% return each year and
o        incur the same operating expenses shown above,

your cost of investing in the fund would be:


              1 Year          3 Years          5 Years          10 Years
- ------------- --------------- ---------------- ---------------- ----------------
- ------------- --------------- ---------------- ---------------- ----------------
Target 2000   $61             $192             $335             $750
Target 2005
Target 2010
Target 2015
Target 2020
Target 2025

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*    Use this  example to compare  the costs of  investing  in other  funds.  Of
     course, your actual costs may be higher or lower.

********************END LEFT MARGIN CALLOUTS****************




Detailed Information about the Funds

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

What are the funds' investment objectives?

These funds seek the highest return  consistent with investment in U.S. Treasury
securities.  This  is  a  fundamental  policy  and  cannot  be  changed  without
shareholder approval.


How do the funds implement their investment objectives?

Each fund invests primarily in zero-coupon U.S. Treasury  securities.  Each fund
is  designed  to provide an  investment  experience  that is similar to a direct
investment in a zero coupon investment.


What are the differences between the funds?

Each fund is managed to mature in the year  identified  in its name;  therefore,
the funds' weighted average maturities are different. Funds with longer weighted
average maturities have the most volatile share prices. For example, Target 2000
has the shortest weighted average  maturity,  and its share price will fluctuate
the least.


What are zero coupon Treasury securities?

U.S.  Treasury bonds have a traditional  design:  interest is paid  periodically
until maturity,  when the principal is repaid. Zero coupon Treasury  securities,
however,  do not  make  any  periodic  interest  payments.  Instead,  all of the
interest and principal is paid when the securities mature.

Zero coupon Treasury securities are created by separating a traditional Treasury
bond's interest and principal parts. Each part can be used to create zero coupon
Treasury  securities.  Zero coupon Treasury  securities are created by financial
institutions  (like a  dealer),  the U.S.  Treasury  and other  agencies  of the
federal  government.  The important  characteristic  is that the final  maturity
value of a zero coupon Treasury security is supported by Treasury securities.

Zero coupon Treasury  securities are beneficial for investors who wish to invest
for a fixed  period of time at a selected  rate.  When an  investor  purchases a
traditional  bond, it is paid periodic  interest at a  predetermined  rate. This
interest payment must be reinvested elsewhere.  However, the investor may not be
able to  reinvest  this  interest  payment in an  investment  that has a similar
return  as the  bond.  This is  called  reinvestment  risk.  Since  zero  coupon
securities do not pay interest periodically, there is no reinvestment risk.

How is an  investment  in the  funds  like an  investment  in zero  coupon  U.S.
Treasury securities?

If you invest in a fund,  reinvest all  distributions and hold your shares until
the fund is liquidated, your investment experience will be similar to that of an
investment in a zero coupon U.S.  Treasury that matures at the end of the fund's
maturity  year.  Each fund is managed to provide an investment  return 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 advisor  calculates each fund's AGR and AVM on each business day. While many
factors can  influence  each fund's  daily AGR and AVM,  the AGR and AVM tend to
fluctuate  within narrow ranges.  The following  table shows how each fund's AVM
has fluctuated in the last five years.

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* Weighted average maturity is a measure of a fund's interest rate  sensitivity.
It is discussed on page 1.


*    Because  all of the  interest  and  principal  is paid when the  securities
     mature,  zero coupon  securities  are bought and sold at prices below their
     face value.


The anticipated value at maturity is the calculated value of a fund's investment
portfolio. It is based on the maturity values of the fund's zero coupon Treasury
securities.

A fund's  anticipated  growth rate is a calculation  of the  annualized  rate of
growth that an investor may expect from the purchase  date to the fund's  target
maturity date.

********************END LEFT MARGIN CALLOUTS****************





Anticipated Values at Maturity
                 9/30/94       9/30/95       9/30/96       9/30/97      9/30/98
- -------------- ------------- ------------- ------------- ------------ ----------
Target 2000      $100.86       $100.99       $101.10       $101.13      $XXX.XX
Target 2005       100.58        100.32        100.71        100.85       XXX.XX
Target 2010       101.38        101.02        102.53        103.40       XXX.XX
Target 2015       107.95        109.62        110.11        110.52       XXX.XX
Target 2020       102.11        102.31        103.60        104.84       XXX.XX
Target 2025         N/A           N/A         109.24        110.88       XXX.XX

What happens when a fund reaches its maturity year?

o    The advisor may begin to buy  traditional  Treasury  securities  consistent
     with the fund's investment objective and pending maturity.

o    As the fund's zero coupon Treasury  securities mature, the proceeds will be
     invested in Treasury bills.

o    In January of the year following maturity, the fund will be liquidated.


What are the primary risks of investing in the funds?

The funds are very sensitive to changes in interest  rates.  When interest rates
rise, the funds' share prices will rise more sharply than  traditional  Treasury
funds with similar maturities. This share price volatility is most pronounced in
the funds with longer weighted average maturities.  If you sell your shares when
their value is less than the price you paid, you will lose money.

While we recommend that  shareholders  hold their investment in the funds, we do
not restrict your (or any other shareholders')  ability to redeem shares. When a
fund's  shareholders  redeem  their  shares  before  the target  maturity  year,
unanticipated capital gains or losses may result. The fund will distribute these
capital gains and losses to all shareholders.

The funds are designed to provide an investment  that is similar to investing in
a zero coupon U.S.  Treasury security that matures in the year identified in its
name.  The advisor  adheres to  investment  policies that are designed to ensure
that this  happens.  However,  a precise  forecast of the fund's final  maturity
value and yield to maturity are not possible.

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*    This table is designed to show the narrow  ranges in which each fund's AVMs
     vary.  There is no guarantee  that the funds' AVMs will fluctuate as little
     in the future.

*    The  investment  performance  the funds is  designed  to be  similar  to an
     investment in an equivalent zero coupon U.S. Treasury security. However, an
     investment in the funds involves different risks.
********************END LEFT MARGIN CALLOUTS****************





Fund Performance History

The  performance  information  on this  page is  designed  to help  you how fund
returns can vary.  Keep in mind that past  performance  does not predict how the
funds will perform in the future.



Annual Total Returns

The following bar chart shows the performance of the funds' Advisor Class shares
for the last  calendar  year. As the funds grow in age, this chart will indicate
the volatility of the funds' historical returns from year to year.

BAR CHART:  Annual  total  returns for Target 2000,  Target  2005,  Target 2010,
Target 2015, Target 2020 and Target 2025. [Data currently unavailable]

********************LEFT MARGIN CALLOUTS************************
The funds' total  returns for the period from  January 1, 1998 to September  30,
1998 are:

Target 2000                X.XX%
Target 2005                X.XX%
Target 2010                X.XX%
Target 2015                X.XX%
Target 2020                X.XX%
Target 2025                X.XX%

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Highest and Lowest Quarterly Returns

The highest and lowest returns of the funds' Advisor Class shares for a calendar
quarter  during the life of the Advisor Class of each fund are provided below to
indicate the funds' historical short-term volatility.

BAR CHART:  Highest and Lowest Quarterly  Returns for Target 2000,  Target 2005,
Target  2010,  Target  2015,  Target  2020  and  Target  2025.  [Data  currently
unavailable]


Average Annual Returns

The following table shows the average annual returns of the funds' Advisor Class
shares for the periods  indicated  during the life of the Advisor  Class of each
fund. A benchmark is included for  performance  comparison.  The benchmark is an
unmanaged index that has no operating costs.


                                   1 year     5 years    10 years  Life of Fund*
- --------------------------------------------------------------------------------
Target 2000                         ?.??%      ?.??%      ?.??%       ?.??%
11/15/2000 Maturity STRIPS Issue    ?.??%      ?.??%      ?.??%       ?.??%
- --------------------------------------------------------------------------------
Target 2005                         ?.??%      ?.??%      ?.??%       ?.??%
11/15/2005 Maturity STRIPS Issue    ?.??%      ?.??%      ?.??%       ?.??%
- --------------------------------------------------------------------------------
Target 2010                         ?.??%      ?.??%      ?.??%       ?.??%
11/15/2010 Maturity STRIPS Issue    ?.??%      ?.??%      ?.??%       ?.??%
- --------------------------------------------------------------------------------
Target 2015                         ?.??%      ?.??%      ?.??%       ?.??%
11/15/2015 Maturity STRIPS Issue    ?.??%      ?.??%      ?.??%       ?.??%
- --------------------------------------------------------------------------------
Target 2020                         ?.??%      ?.??%      ?.??%       ?.??%
11/15/2020 Maturity STRIPS Issue    ?.??%      ?.??%      ?.??%       ?.??%
- --------------------------------------------------------------------------------
Target 2025                         ?.??%      ?.??%      ?.??%       ?.??%
11/15/2025 Maturity STRIPS Issue    ?.??%      ?.??%      ?.??%       ?.??%

*    The inception date for the Advisor Class of the funds is September 2, 1997.

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[Chart Legend]
                   Target 2025
                   Target 2020
                   Target 2015
                   Target 2010
                   Target 2005
                   Target 2000

[Chart Legend]
             Highest Return
              Lowest Return

*    For current performance  information,  including yields,  please call us at
     1-800-345-2021    or    visit    American    Century's    Web    site    at
     www.americancentury.com.

********************END LEFT MARGIN CALLOUTS****************




Basics of Fixed Income Investing

Debt Securities

When a fund buys a debt security,  which is also called a fixed income security,
it is essentially  lending money to the issuer of the security.  Debt securities
also are referred to as fixed income securities.  Notes, bonds, commercial paper
and Treasury bills are examples of debt securities. After the issuer first sells
the debt security,  it may be bought and sold by other  investors.  The price of
the  security  may rise or fall  based on many  factors,  including  changes  in
interest rates, inflation and liquidity.

The advisor decides which debt securities to buy and sell by

*    determining which securities help a fund meet its maturity requirements

*    eliminating  securities  that  do  not  satisfy  a  fund's  credit  quality
     standards

*    evaluating  the  current  economic  conditions  and  assessing  the risk of
     inflation

*    evaluating  special  features of the securities  that may make them more or
     less attractive


Weighted Average Maturity

Like most loans,  debt  securities  eventually must be repaid (or refinanced) at
some date.  This date is called the maturity  date. The number of days left to a
debt  security's  maturity date is called the remaining  maturity.  The longer a
debt  security's  remaining  maturity,  the more  sensitive  it is to changes in
interest rates.

Because a bond fund will own many debt  securities,  the advisor  calculates the
average of the remaining  maturities of all of the debt securities the fund owns
to evaluate the interest rate sensitivity of the entire portfolio.  This average
is  weighted  according  to the size of the fund's  individual  holdings  and is
called weighted average maturity. The following chart shows how an advisor would
calculate  the  weighted  average  maturity  for a fund that owned only two debt
securities.

<TABLE>
                    Amount of Security Owned  Percent of Portfolio   Remaining Maturity   Weighted Maturity
- ------------------- ------------------------- ---------------------- -------------------- -------------------
<S>                 <C>                       <C>                    <C>                  <C>     
Debt Security A     $100,000                  25%                    1,000 days           250 days
Debt Security B     $300,000                  75%                    10,000 days          7500 days
Weighted Average 
 Maturity                                                                                 7750 days
</TABLE>

Types of Risk

The basic types of risk that the funds face are described below.

Interest Rate Risk

Generally,  interest  rates and the prices of debt  securities  move in opposite
directions.  So when  interest  rates fall,  the prices of most debt  securities
rise; when interest rates rise, prices fall.  Because the funds invest primarily
in  debt   securities,   changes  in  interest  rates  will  affect  the  funds'
performance.

The degree to which interest rate changes affect the funds'  performance  varies
and is related to the weighted average  maturity of the fund. For example,  when
interest  rates rise, you can expect the share value of a long-term bond fund to
fall more than that of a short-term  bond fund. When rates fall, the opposite is
true. This sensitivity to interest rate changes is called interest rate risk.

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*    Weighted  average  maturity is a tool that the advisor uses to  approximate
     the remaining maturity of a fund's investment portfolio.

F The longer a fund's  weighted  average  maturity,  the more sensitive it is to
changes in interest rates.

********************END LEFT MARGIN CALLOUTS****************




When interest rates change, longer maturity bonds experience a greater change in
price.  The following  table shows the effect of a 1% increase in interest rates
on the price of 7% coupon bonds of differing maturities:

Remaining Maturity    Current Price  Price after 1% increase   Change in price
- -------------------- --------------- ------------------------ -----------------
1 year                  $100.00           $99.06                -0.94%
3 years                  100.00            97.38                -2.62%
10 years                 100.00            93.20                -6.80%
30 years                 100.00            88.69               -11.31%


Credit Risk

Credit risk is the risk that an obligation won't be paid and a loss will result.
A high credit rating  indicates a high degree of confidence that the issuer will
be able to make interest and principal payments on time.

It's not as simple as buying the highest rated debt securities,  though.  Higher
credit ratings  usually mean lower interest  rates,  so investors often purchase
securities that aren't the highest-rated to increase return. If a fund purchases
lower-rated securities, it has assumed additional credit risk.

Liquidity Risk

Debt securities can become  difficult to sell for a variety of reasons,  such as
lack of an active trading market.  When a fund's investments become difficult to
sell, it is said to have a problem with  liquidity.  The chance that a fund will
have liquidity issues is called liquidity risk.


Inflation Risk

The safest investments usually have the lowest potential income and performance.
There is a risk,  then,  that the investment may fail to  significantly  outpace
inflation.  Even if the value of your  investment has not gone down,  your money
will  not  be  worth  as  much  as  if  there  had  been  no   inflation.   Your
after-inflation return may be quite small. This risk is called inflation risk.

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*    Credit quality may be reduced when

o    the issuer has a less reliable cash flow

o    the issuer's finances are more sensitive to adverse economic  conditions or
     changing  circumstances  o the  securities may be repaid after the issuer's
     other (more senior) debt.

o    the issuer has a shorter financial history

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A Comparison of Basic Risk Factors

The  following  chart  depicts the basic risks of investing in the funds.  It is
designed to help you compare  these funds with each other;  it shouldn't be used
to compare these funds with other mutual funds.

                Interest Rate  Credit Risk   Liquidity Risk    Inflation Risk
                Risk
- --------------- -------------- ------------- ----------------- -----------------
Target 2000     Lowest         Lowest        Lowest
Target 2005     Low            Lowest        Lowest
Target 2010     Medium         Lowest        Lowest
Target 2015     Medium         Lowest        Lowest
Target 2020     High           Lowest        Lowest
Target 2025     Highest        Lowest        Lowest

The funds  engage in a variety of  investment  techniques  as they pursue  their
investment objectives. Each technique has its own characteristics,  and may pose
some  level of risk to the funds.  If you would  like to learn more about  these
techniques,  you should review the Statement of  Additional  Information  before
making an investment.



Management

Who manages the funds?

The Board of Trustees, investment advisor and portfolio management team play key
roles in the management of the funds.


The Board of Trustees

The Board of Trustees  oversees the  management  of the funds and meets at least
quarterly  to  review  reports  about  fund  operations.  Although  the Board of
Trustees does not manage the funds, it has hired an investment advisor to do so.
More than half of the Trustees are independent of the funds'  advisor,  that is,
they are not employed by and have no financial interest in the advisor.


The Investment Advisor

The funds' investment  advisor is American Century Investment  Management,  Inc.
The  advisor  has been  managing  mutual  funds  since it was  founded  in 1958.
American  Century is headquartered  at 4500 Main Street,  Kansas City,  Missouri
64111.

The  advisor  manages  the  investment  portfolios  of the funds and directs the
purchase and sale of their investment securities.  The advisor also arranges for
transfer  agency,  custody  and all other  services  necessary  for the funds to
operate.

For the  services  it  provides  to the funds,  the  advisor  receives a unified
management fee based on a percentage of the average net assets of each fund. The
rate of the  management  fee for a fund is  determined  monthly using a two-step
formula  that takes into  account the fund's  strategy  (money  market,  bond or
equity) and the total  amount of mutual fund  assets the  advisor  manages.  The
Statement of Additional  Information  contains  detailed  information  about the
calculation  of the  management  fee.  Out of that  fee,  the  advisor  pays all
expenses of managing and operating the fund except  brokerage  expenses,  taxes,
interest, fees and expenses of the independent Trustees (including counsel fees)
and extraordinary expenses.

Fees Paid by the Funds to the Advisor in Most Recent Fiscal Year
- --------------------------------------------------------------------------------
Target 2000                                                         X.XX%
Target 2005                                                         X.XX%
Target 2010                                                         X.XX%
Target 2015                                                         X.XX%
Target 2020                                                         X.XX%
Target 2025                                                         X.XX%





The Portfolio Management Team

The advisor uses teams of portfolio  managers,  assistant portfolio managers and
analysts to manage the funds.  Teams meet regularly to review portfolio holdings
and to discuss purchase and sale activity.  Team members buy and sell securities
for a fund as they  see fit,  guided  by the  fund's  investment  objective  and
strategy.

Portfolio manager members of the investment team include:

David Schroeder

Mr. Schroeder, Vice President, joined the advisor in 1990 and has been primarily
responsible for the day-to-day operations of the Target funds since July 1990.

Jeremy Fletcher

Mr. Fletcher,  Associate  Portfolio Manager,  joined the advisor in 1991 and has
been a member of the team that manages the Target funds since August 1997.

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*    Code of Ethics
     American Century has a Code of Ethics designed to ensure that the interests
     of fund shareholders come before the interests of the people who manage the
     funds.  Among  other  provisions,  the Code of Ethics  prohibits  portfolio
     managers  and other  investment  personnel  from  buying  securities  in an
     initial public offering or from profiting from the purchase and sale of the
     same  security  within 60 calendar  days.  In addition,  the Code of Ethics
     requires  portfolio managers and other employees with access to information
     about the purchase or sale of  securities  by the funds to obtain  approval
     before executing permitted personal trades.



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Fundamental Investment Policies

Fundamental  investment  policies  contained  in  the  Statement  of  Additional
Information  and the  investment  objectives  of the  funds  may not be  changed
without a shareholder  vote. The Board of Trustees may change any other policies
and investment strategies.


Service and Distribution Fees

Investment Company Act Rule 12b-1 permits mutual funds that adopt a written plan
to pay out of fund assets certain  expenses  associated with the distribution of
their shares. The funds' Advisor Class shares have a 12b-1 Plan. Under the Plan,
the  fund  pays  an  annual  fee of  0.50%  of fund  assets,  half  for  certain
shareholder and administrative  services and half for distribution services. The
advisor,  as paying  agent for the funds,  pays all or a portion of such fees to
the  banks,  broker-dealers  and  insurance  companies  that  make  such  shares
available.  Because  these fees are paid out of the fund's assets on an on-going
basis,  over time these fees will increase the cost of your  investment  and may
cost  you  more  than  paying  other  types of  sales  charges.  For  additional
information about the Plan and its terms, see "Multiple Class Structure - Master
Distribution  and  Shareholder  Services  Plan" in the  Statement of  Additional
Information.


Year 2000 Issues

Many of the world's  computer  systems  currently  cannot properly  recognize or
process date-sensitive information relating to the Year 2000 and beyond. Because
this may impact the computer systems of various American  Century-affiliated and
external service providers for the funds,  American Century formally initiated a
Year 2000  readiness  project in July 1997.  It  involves a team of  information
technology  professionals  assisted  by  outside  consultants  and  guided  by a
senior-level steering committee.  The team's goal is to assess the impact of the
Year 2000 on  American  Century's  systems,  renovate  or  replace  noncompliant
critical systems and test those systems. In addition,  the team has been working
to gather  information  about the Year 2000  efforts of the funds'  other  major
service providers.  Although American Century believes its critical systems will
function  properly in the Year 2000, this is not  guaranteed.  If the efforts of
American  Century or its external  service  providers  are not  successful,  the
funds'  business,  particularly  the provision of shareholder  services,  may be
hampered.

In  addition,  the  issuers  of  securities  the funds own could  have Year 2000
computer  problems.  These problems could  negatively  affect the value of their
securities, which, in turn, could impact the funds' performance. The advisor has
established a process to gather publicly  available  information  about the Year
2000  readiness  of these  issuers.  However,  this  process may not uncover all
relevant  information,  and the  information  gathered  may not be complete  and
accurate.  Moreover, an issuer's Year 2000 readiness is only one of many factors
the advisor may consider when making investment decisions, and other factors may
receive greater weight.




How to Invest in American Century

Investing Through Financial Intermediaries

Because the funds are offered  through a financial  intermediary or a retirement
plan,  your ability to purchase,  exchange and redeem  shares will depend on the
policies of that entity. Some policy differences may include

o        minimum investment requirements
o        exchange policies
o        fund choices
o        cut-off time for investments

Please  contact  your  financial  intermediary  or plan  sponsor  for a complete
description  of its policies.  Copies of the funds' annual  reports,  semiannual
reports  and  Statements  of  Additional  Information  are  available  from your
intermediary or plan sponsor.

Certain  financial   intermediaries  perform  recordkeeping  and  administrative
services  for their  clients  that would  otherwise  be  performed  by  American
Century's transfer agent. In some  circumstances,  American Century will pay the
service provider a fee for performing those services.

Although  transactions in fund shares may be made directly with American Century
at no charge,  you also may purchase,  redeem and exchange  fund shares  through
financial  intermediaries that charge a transaction-based or other fee for their
services. Those charges are retained by the intermediary and are not shared with
American Century or the funds.

American Century has contracts with certain  financial  intermediaries  in which
they represent that they will track the time investment orders are received. The
funds have  authorized  those  intermediaries  to accept  orders on each  funds'
behalf up to the time net asset value is determined.  Such orders will be priced
at the net asset value next determined after acceptance of the order on a fund's
behalf.


A Note About Mailings to Shareholders

To reduce expenses and demonstrate respect for our environment,  we will deliver
most financial  reports,  prospectuses and account statements to households in a
single  envelope,  even if the accounts are registered under different names. If
you would like  additional  copies of  financial  reports  and  prospectuses  or
separate mailing of account statements, please call us.

********************LEFT MARGIN CALLOUTS************************
* Financial intermediaries include bankers, broker-dealers,  insurance companies
and investment advisors.

********************END LEFT MARGIN CALLOUTS****************



Share Price and Distributions

Share Price

We determine the net asset value of the funds as of one hour before the close of
regular trading on the New York Stock Exchange  (usually 3 p.m. Eastern time) on
each day the Exchange is open.  On days when the Exchange is not open, we do not
calculate  the net  asset  value.  The net  asset  value of a fund  share is the
current value of the fund's investments,  minus any liabilities,  divided by the
number of fund shares outstanding.

If current prices of securities  owned by a fund are not readily  available from
an independent  pricing  service,  the advisor may determine their fair value in
accordance with procedures  adopted by the fund's Board of Trustees.  Trading of
securities  in foreign  markets may not take place on every day the  Exchange is
open.  Also,  trading in some  foreign  markets  may take place on  weekends  or
holidays  when a fund's net asset  value is not  calculated.  So, the value of a
fund's  portfolio  may be  affected  on days when you can't  purchase  or redeem
shares of the fund.

We will price your purchase,  exchange or redemption at the net asset value next
determined after we receive your transaction request in good order.


Distributions

Federal tax laws require each fund to make  distributions  to its  shareholders.
The  distributions  generally  consist of dividends  and interest  received by a
fund,  as well as capital gains  realized on the sale of investment  securities.
Each fund pays distributions from net income quarterly. Each fund generally pays
distributions  of  capital  gains,  if any,  once a year.  A fund may make  more
frequent distributions if necessary to avoid taxes.

You will begin to participate in fund  distributions the day after your purchase
is effective.  If you redeem shares, you will receive the distribution  declared
for  the day  you  redeem.  If you  redeem  all  shares,  we  will  include  the
distribution on the redeemed with your redemption proceeds.

Participants in employer-sponsored retirement or savings plans must reinvest all
distributions.  For shareholders  investing  through taxable  accounts,  we will
reinvest  distributions unless you elect to receive them in cash. Please consult
our Investor Services Guide for further information regarding  distributions and
your distribution options.

********************LEFT MARGIN  CALLOUTS************************  

The net asset value of a fund is the price of the fund's shares.


********************END LEFT MARGIN CALLOUTS****************



Taxes

Tax-Deferred Accounts

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

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


Taxable Accounts

Fund   distributions   are  taxable  to  most   investors.   The  taxability  of
distributions  is not  affected by how long you have been in the fund or whether
you reinvest your distributions or take them in cash. In general,  distributions
are taxable as follows:

<TABLE>
Type of distribution     Tax rate for 15% bracket Tax rate for 28% bracket or above
- ------------------------ ------------------------ ---------------------------------
<S>                      <C>                     <C>
Income                     Ordinary income rate          Ordinary income rate
Short-term capital gains   Ordinary income rate          Ordinary income rate
Long-term capital gains             10%                          20%
</TABLE>

American  Century  will  detail  the tax status of fund  distributions  for each
calendar year in an annual tax statement from the fund.

Distributions may also be subject to state and local taxes.  Because  everyone's
tax situation is unique,  always  consult your tax  professional  about federal,
state and local tax consequences.

Taxes on transactions. Your redemptions -- including exchanges to other American
Century funds -- are subject to capital gains tax. A capital gain or loss is the
difference  between the cost of your  shares and the price you receive  when you
sell them.

The table above can provide a general  guide for your  potential  tax  liability
when selling or exchanging fund shares. "Short-term capital gains," are gains on
fund shares held less than or equal to 12 months. "Long-term capital gains," are
gains on fund shares held for more than 12 months.

********************LEFT MARGIN CALLOUTS************************
*    Buying a Dividend

     Purchasing  fund shares in a taxable  account shortly before a distribution
     is sometimes  known as "buying a dividend." In taxable  accounts,  you must
     pay income taxes on the  distribution  whether you take the distribution in
     cash or  reinvest  it.  In  addition,  you  will  have to pay  taxes on the
     distribution whether the value of your investment  decreased,  increased or
     remained the same after you bought the fund shares.

     The risk in  buying a  dividend  is that a fund's  portfolio  may  build up
     taxable  gains  throughout  the  period  covered  by  a  distribution,   as
     securities are sold at a profit.  We distribute  those gains to your, after
     subtracting  any losses,  even if you did not own the shares when the gains
     occurred.

     Thus  if you buy a  divided,  you  incur  the  full  tax  liability  of the
     distribution  period,  but you may not enjoy the full  benefit of the gains
     realized in the fund's portfolio.


********************END LEFT MARGIN CALLOUTS****************


Multiple Class Information

American  Century may offer up to three  classes of the funds:  Investor  Class,
Institutional Class and Advisor Class. The shares offered by this Prospectus are
Advisor  Class  shares and are offered  primarily  to  institutional  investors,
through  institutional   distribution   channels,   such  as  employer-sponsored
retirement plans, or through banks, broker-dealers and insurance companies.

American  Century  offers  another  class of shares  that has has no up-front or
deferred  charges,  commissions,  or 12b-1 fees. The funds may offer a different
class of shares  primarily to  institutional  investors,  through  institutional
distribution channels,  such as employer-sponsored  retirement plans, or through
banks,  broker-dealers and insurance companies. The other classes have 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 advisor 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 us at 1-800-345-3533 or contact a sales representative or
financial intermediary who offers those classes of shares.

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,  (d) each class may
have different exchange privileges,  and (e) the Institutional Class may provide
for automatic  conversion  from that class into shares of the Investor  Class of
the same fund.




Target 2000
                                                              1998     1997
PER-SHARE DATA
Net Asset Value, Beginning of Year
                                                           --------- --------
Income from Investment Operations
   Net Investment Income (dividends)
   Net Realized and Unrealized Gain (Loss) on Investment
   Transactions
                                                           --------- --------
   Total From Investment Operations
                                                           --------- --------
Less Distributions
   From Net Investment Income (dividends)
   From Net Realized Gains on Investment Transactions
                                                           --------- --------
                                                           --------- --------
   Total Distributions
                                                           --------- --------
Net Asset Value, End of Year
                                                           --------- --------
Total Return(1)

Ratio of Operating Expenses to Average Net Assets
Ratio of Net Investment Income to Average Net Assets
Portfolio Turnover Rate
Net Assets, End of Year (in thousands)

(1)  Total return assumes reinvestment of dividends and capital gains, if any.





Target 2005
                                                             1998      1997
PER-SHARE DATA
Net Asset Value, Beginning of Year
                                                           --------- --------
Income from Investment Operations
   Net Investment Income (dividends)
   Net Realized and Unrealized Gain (Loss) on Investment
   Transactions
                                                           --------- --------
   Total From Investment Operations
                                                           --------- --------
Less Distributions
   From Net Investment Income (dividends)
   From Net Realized Gains on Investment Transactions
                                                           --------- --------
                                                           --------- --------
   Total Distributions
                                                           --------- --------
Net Asset Value, End of Year
                                                           --------- --------
Total Return(1)

Ratio of Operating Expenses to Average Net Assets
Ratio of Net Investment Income to Average Net Assets
Portfolio Turnover Rate
Net Assets, End of Year (in thousands)

(1)  Total return assumes reinvestment of dividends and capital gains, if any.





Target 2010
                                                              1998     1997
PER-SHARE DATA

Net Asset Value, Beginning of Year
                                                           --------- --------
Income from Investment Operations
   Net Investment Income (dividends)
   Net Realized and Unrealized Gain (Loss) on Investment
   Transactions
                                                           --------- --------
   Total From Investment Operations
                                                           --------- --------
Less Distributions
   From Net Investment Income (dividends)
   From Net Realized Gains on Investment Transactions
                                                           --------- --------
                                                           --------- --------
   Total Distributions
                                                           --------- --------
Net Asset Value, End of Year
                                                           --------- --------
Total Return(1)

Ratio of Operating Expenses to Average Net Assets
Ratio of Net Investment Income to Average Net Assets
Portfolio Turnover Rate
Net Assets, End of Year (in thousands)

(1)  Total return assumes reinvestment of dividends and capital gains, if any.





Target 2015
                                                              1998     1997
PER-SHARE DATA
Net Asset Value, Beginning of Year
                                                           --------- --------
Income from Investment Operations
   Net Investment Income (dividends)
   Net Realized and Unrealized Gain (Loss) on Investment
   Transactions
                                                           --------- --------
   Total From Investment Operations
                                                           --------- --------
Less Distributions
   From Net Investment Income (dividends)
   From Net Realized Gains on Investment Transactions
                                                           --------- --------
                                                           --------- --------
   Total Distributions
                                                           --------- --------
Net Asset Value, End of Year
                                                           --------- --------
Total Return(1)

Ratio of Operating Expenses to Average Net Assets
Ratio of Net Investment Income to Average Net Assets
Portfolio Turnover Rate
Net Assets, End of Year (in thousands)

(1)  Total return assumes reinvestment of dividends and capital gains, if any.





Target 2020
                                                              1998     1997
PER-SHARE DATA
Net Asset Value, Beginning of Year
                                                           --------- --------
Income from Investment Operations
   Net Investment Income (dividends)
   Net Realized and Unrealized Gain (Loss) on Investment
   Transactions
                                                           --------- --------
   Total From Investment Operations
                                                           --------- --------
Less Distributions
   From Net Investment Income (dividends)
   From Net Realized Gains on Investment Transactions
                                                           --------- --------
                                                           --------- --------
   Total Distributions
                                                           --------- --------
Net Asset Value, End of Year
                                                           --------- --------
Total Return(1)

Ratio of Operating Expenses to Average Net Assets
Ratio of Net Investment Income to Average Net Assets
Portfolio Turnover Rate
Net Assets, End of Year (in thousands)

(1)  Total return assumes reinvestment of dividends and capital gains, if any.





Target 2025
                                                              1998     1997
PER-SHARE DATA
Net Asset Value, Beginning of Year
                                                           --------- --------
Income from Investment Operations
   Net Investment Income (dividends)
   Net Realized and Unrealized Gain (Loss) on Investment
   Transactions
                                                           --------- --------
   Total From Investment Operations
                                                           --------- --------
Less Distributions
   From Net Investment Income (dividends)
   From Net Realized Gains on Investment Transactions
                                                           --------- --------
                                                           --------- --------
   Total Distributions
                                                           --------- --------
Net Asset Value, End of Year
                                                           --------- --------
Total Return(1)

Ratio of Operating Expenses to Average Net Assets
Ratio of Net Investment Income to Average Net Assets
Portfolio Turnover Rate
Net Assets, End of Year (in thousands)

(1)  Total return assumes reinvestment of dividends and capital gains, if any.



                   Performance Information of the Other Class

The Advisor Class of the funds was  established  September 2, 1997. As a result,
the following  financial  information is provided to show the performance of the
funds'  Investor  Class of shares.  This Class has a total expense ratio that is
0.25% lower than the Advisor  Class.  If the Advisor  Class  existed  during the
periods  presented,  its  performance  would  have  been  lower  because  of the
additional expense.

This table  itemizes what  contributed  to the changes in share price during the
period,  and compares  this to changes over the last five fiscal years (or less,
if the share class is not five years old).

On a per-share basis, it includes:

o    share price at the beginning of the period

o    investment income and capital gains or losses

o    distributions of income and capital gains paid to shareholders

o    share price at the end of the period

It also includes some key statistics for the period:

o    total return--the  overall  percentage of return of the fund,  assuming the
     reinvestment of all distributions

o    expense ratio--operating expenses as a percentage of average net assets

o    net income  ratio--net  investment  income as a  percentage  of average net
     assets

o    portfolio  turnover--the  percentage  of  the  fund's  buying  and  selling
     activity


The following Financial Highlights have been audited by  PricewaterhouseCoopers,
LLP, independent auditors. Their report is in the funds' annual report, which is
incorporated by reference into the Statement of Additional  Information,  and is
available  upon  request.   Prior  years'   information  was  audited  by  other
independent auditors.



Target 2000
                                          1998   1997    1996   1995   1994
PER-SHARE DATA
Net Asset Value, Beginning of Year......
                                          ------ ------ ------ ------ ------
Income from Investment Operations
   Net Investment Income (dividends)....
   Net Realized and Unrealized Gain
   (Loss) on Investment Transactions....
                                          ------ ------ ------ ------ ------
   Total From Investment Operations.....
                                          ------ ------ ------ ------ ------
Less Distributions
   From Net Investment Income
   (dividends)..........................
   From Net Realized Gains on
   Investment Transactions..............
                                          ------ ------ ------ ------ ------
                                          ------ ------ ------ ------ ------
   Total Distributions..................
                                          ------ ------ ------ ------ ------
Net Asset Value, End of Year............
                                          ------ ------ ------ ------ ------
Total Return(1).........................

Ratio of Operating Expenses to Average
Net Assets..............................
Ratio of Net Investment Income to
Average Net Assets......................
Portfolio Turnover Rate.................
Net Assets, End of Year (in thousands)..

(1) Total return assumes reinvestment of dividends and capital gains, if any.




Target 2005
                                          1998   1997    1996   1995   1994
PER-SHARE DATA
Net Asset Value, Beginning of Year......
                                          ------ ------ ------ ------ ------
Income from Investment Operations
   Net Investment Income (dividends)....
   Net Realized and Unrealized Gain
   (Loss) on Investment Transactions....
                                          ------ ------ ------ ------ ------
   Total From Investment Operations.....
                                          ------ ------ ------ ------ ------
Less Distributions
   From Net Investment Income
   (dividends)..........................
   From Net Realized Gains on
   Investment Transactions..............
                                          ------ ------ ------ ------ ------
                                          ------ ------ ------ ------ ------
   Total Distributions..................
                                          ------ ------ ------ ------ ------
Net Asset Value, End of Year............
                                          ------ ------ ------ ------ ------
Total Return(1).........................

Ratio of Operating Expenses to Average
Net Assets..............................
Ratio of Net Investment Income to
Average Net Assets......................
Portfolio Turnover Rate.................
Net Assets, End of Year (in thousands)..

(1) Total return assumes reinvestment of dividends and capital gains, if any.





Target 2010
                                          1998   1997    1996   1995   1994
PER-SHARE DATA
Net Asset Value, Beginning of Year......
                                          ------ ------ ------ ------ ------
Income from Investment Operations
   Net Investment Income (dividends)....
   Net Realized and Unrealized Gain
   (Loss) on Investment Transactions....
                                          ------ ------ ------ ------ ------
   Total From Investment Operations.....
                                          ------ ------ ------ ------ ------
Less Distributions
   From Net Investment Income
   (dividends)..........................
   From Net Realized Gains on
   Investment Transactions..............
                                          ------ ------ ------ ------ ------
                                          ------ ------ ------ ------ ------
   Total Distributions..................
                                          ------ ------ ------ ------ ------
Net Asset Value, End of Year............
                                          ------ ------ ------ ------ ------
Total Return(1).........................

Ratio of Operating Expenses to Average
Net Assets..............................
Ratio of Net Investment Income to
Average Net Assets......................
Portfolio Turnover Rate.................
Net Assets, End of Year (in thousands)..

(1) Total return assumes reinvestment of dividends and capital gains, if any.





Target 2015
                                          1998   1997    1996   1995   1994
PER-SHARE DATA
Net Asset Value, Beginning of Year......
                                          ------ ------ ------ ------ ------
Income from Investment Operations
   Net Investment Income (dividends)....
   Net Realized and Unrealized Gain
   (Loss) on Investment Transactions....
                                          ------ ------ ------ ------ ------
   Total From Investment Operations.....
                                          ------ ------ ------ ------ ------
Less Distributions
   From Net Investment Income
   (dividends)..........................
   From Net Realized Gains on
   Investment Transactions..............
                                          ------ ------ ------ ------ ------
                                          ------ ------ ------ ------ ------
   Total Distributions..................
                                          ------ ------ ------ ------ ------
Net Asset Value, End of Year............
                                          ------ ------ ------ ------ ------
Total Return(1).........................

Ratio of Operating Expenses to Average
Net Assets..............................
Ratio of Net Investment Income to
Average Net Assets......................
Portfolio Turnover Rate.................
Net Assets, End of Year (in thousands)..

(1) Total return assumes reinvestment of dividends and capital gains, if any.





Target 2020
                                          1998   1997    1996   1995   1994
PER-SHARE DATA
Net Asset Value, Beginning of Year......
                                          ------ ------ ------ ------ ------
Income from Investment Operations
   Net Investment Income (dividends)....
   Net Realized and Unrealized Gain
   (Loss) on Investment Transactions....
                                          ------ ------ ------ ------ ------
   Total From Investment Operations.....
                                          ------ ------ ------ ------ ------
Less Distributions
   From Net Investment Income
   (dividends)..........................
   From Net Realized Gains on
   Investment Transactions..............
                                          ------ ------ ------ ------ ------
                                          ------ ------ ------ ------ ------
   Total Distributions..................
                                          ------ ------ ------ ------ ------
Net Asset Value, End of Year............
                                          ------ ------ ------ ------ ------
Total Return(1).........................

Ratio of Operating Expenses to Average
Net Assets..............................
Ratio of Net Investment Income to
Average Net Assets......................
Portfolio Turnover Rate.................
Net Assets, End of Year (in thousands)..

(1) Total return assumes reinvestment of dividends and capital gains, if any.





Target 2025
                                          1998   1997    1996   1995   1994
PER-SHARE DATA
Net Asset Value, Beginning of Year......
                                          ------ ------ ------ ------ ------
Income from Investment Operations
   Net Investment Income (dividends)....
   Net Realized and Unrealized Gain
   (Loss) on Investment Transactions....
                                          ------ ------ ------ ------ ------
   Total From Investment Operations.....
                                          ------ ------ ------ ------ ------
Less Distributions
   From Net Investment Income
   (dividends)..........................
   From Net Realized Gains on
   Investment Transactions..............
                                          ------ ------ ------ ------ ------
                                          ------ ------ ------ ------ ------
   Total Distributions..................
                                          ------ ------ ------ ------ ------
Net Asset Value, End of Year............
                                          ------ ------ ------ ------ ------
Total Return(1).........................

Ratio of Operating Expenses to Average
Net Assets..............................
Ratio of Net Investment Income to
Average Net Assets......................
Portfolio Turnover Rate.................
Net Assets, End of Year (in thousands)..

(1) Total return assumes reinvestment of dividends and capital gains, if any.



More information about the funds is contained in these documents:

Annual and Semiannual  Reports.  Contain more information  about about the funds
investments   and  the  market   conditions  and  investment   strategies   that
significantly  affected the fund's  performance during the most recent six-month
fiscal period.

Statement of Additional Information. Contains a more detailed, legal description
of the funds' operations,  investment restrictions,  policies and practices. The
SAI is  incorporated  by reference into this  Prospectus.  This means that it is
legally part of this Prospectus, even if you don't request a copy.
                                                                  
                                                                  
You can also get information (including the the fund's SAI) from the SEC.

*    In person.  Go to the SEC's Public Reference Room in Washington,  D.C. Call
     1-800-SEC-0330 for information about location and hours of operation.

*    On the internet. Go to www.sec.gov.
                                                          
*    By mail. Write to Public  Reference  Section of the Securities and Exchange
     Commission,  Washington,  D.C.  20549-6009.  The SEC will  charge a fee for
     copying the documents you request.



- --------------------------------------------------------------------------------
                        [american century logo(reg.sm)]
                                    AMERICAN
                                    CENTURY


American Century Investments             Telecommunications Device for the Deaf
P.O. Box 419385                          1-800-345-1833 or 816-444-3038
Kansas City, Missouri 64141-6385
                                         Fax: 816-340-4655
Institutional Services
1-800-345-3533 or 816-531-5575           www.americancentury.com



Investment Company Act File Number 811-XXXX              Funds Distributor, Inc.
<PAGE>
                      Statement of Additional Information
- --------------------------------------------------------------------------------
                                February 1, 1999

                                AMERICAN CENTURY
                            TARGET MATURITIES TRUST

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

This  Statement of Additional  Information  adds to the discussion in the funds'
Prospectus, dated February 1, 1999, but is not a prospectus. If you would like a
copy of the  Prospectus,  please  contact  us at one of the  addresses  or phone
numbers  listed  on the  back  cover  or visit  American  Century's  Web site at
www.americancentury.com.

This  Statement of  Additional  Information  incorporates  by reference  certain
information that appears in the funds' annual and semiannual reports,  which are
delivered to all  shareholders.  You may obtain a free copy of the funds' annual
or semiannual report by calling 1-800-345-2021.


Distributed by Funds Distributor, Inc.

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


Table of Contents


The Funds'History.......................................................1

Fund Investment Outlines................................................1

Detailed Information About the Funds....................................1
   Investment Strategies and Risks......................................1
   Investment Policies..................................................4
   Temporary Defensive Measures.........................................5
   Portfolio Turnover...................................................6

Management..............................................................6
   The Board of Trustees................................................6
   Officers.............................................................8

The Funds'Biggest Shareholders..........................................9

Service Providers.......................................................9
   Investment Advisor...................................................9
   Distributor..........................................................11
   Transfer Agent and Administrator.....................................12
   Other Service Providers..............................................12

Brokerage Allocation....................................................12

Information About Fund Shares...........................................13
   Generally............................................................13
   Fund Liquidations....................................................13
   Multiple Class Structure.............................................13
   Rule 12b-1...........................................................14
   Master Distribution and Shareholder Services Plan....................14

Valuation of Portfolio Securities.......................................15

Taxes...................................................................15

How Fund Performance Information is Calculated..........................17
   Multiple Class Performance Advertising...............................18

Financial Statements....................................................18

Explanation of Fixed Income Securities Ratings..........................18
   Bond Ratings.........................................................18
   Commercial Paper Ratings.............................................19
   Note Ratings.........................................................19






The Funds' History

American Century Target Maturities Trust (the "Trust") is a registered  open-end
management  investment  company that was organized as a  Massachusetts  business
trust on March 25, 1985. The Trust was known as "Benham Target Maturities Trust"
until January 1997.

Each fund is a separate series of the Trust and operates for many purposes as if
it were an independent  company.  Each fund has its own tax  identification  and
stock registration number. The funds may have different inception dates.

- ------------------------------------------------- -------------- ---------------
                                                  Inception Date Inception Date
Fund-Class (Ticker Symbol)                           (Investor   (Advisor Class)
                                                      Class)
- ------------------------------------------------- -------------- ---------------
American Century Target Maturities Trust: 2000 ()   03/25/1985     09/02/1997
American Century Target Maturities Trust: 2005 ()   03/25/1985     09/02/1997
American Century Target Maturities Trust: 2010 ()   03/25/1985     09/02/1997
American Century Target Maturities Trust: 2015 ()   09/01/1986     09/02/1997
American Century Target Maturities Trust: 2020 ()   12/29/1989     09/02/1997
American Century Target Maturities Trust: 2025 ()   02/16/1996     09/02/1997
- ------------------------------------------------- -------------- ---------------

Fund Investment Outlines

This  section  explains  the  extent  to  which  American   Century   Investment
Management,  Inc.  (the  "advisor")  can use  various  investment  vehicles  and
strategies  in  managing  a  fund's  assets.   Descriptions  of  the  investment
techniques  and risks  associated  with each appear in the section,  "Investment
Strategies  and  Risks,"  which  begins  on page 1.  In the  case of the  funds'
principal investment  strategies,  these descriptions  elaborate upon discussion
contained in the Prospectus.

Each  fund is a  diversified  open-end  investment  company  as  defined  in the
Investment Company Act of 1940 (the Investment Company Act). "Diversified" means
that,  with respect to 75% of its total  assets,  each fund will not invest more
than 5% of its total assets in the securities of a single issuer.

To meet federal tax  requirements for  qualification  as a regulated  investment
company,  each fund  must  limit  its  investments  so that at the close of each
quarter  of its  taxable  year (1) no more  than  25% of its  total  assets  are
invested in the  securities of a single issuer (other than the U.S government or
a regulated  investment  company),  and (2) with  respect to at least 50% of its
total assets, no more than 5% of its total assets are invested in the securities
of a single issuer.


Detailed Information About the Funds

Investment Strategies and Risks

This section  describes each of the investment  vehicles and strategies that the
advisor  can use in  managing  a  fund's  assets.  It  also  details  the  risks
associated  with each,  because each  technique  contributes to a fund's overall
risk profile.


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.  REFCORP  zeros are the  unmatured  coupons and principal
portions of Resolution Funding  Corporation  bonds. 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."


Managing to the Target Year

*    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  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.

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

             9/30/93 AGR   9/30/94 AGR   9/30/95 AGR   9/30/96 AGR   9/30/97 AGR
- ------------ ------------- ------------- ------------- ------------- -----------
Target 2000  4.66%         6.76%         5.37%         5.75%         5.24%
- ------------ ------------- ------------- ------------- ------------- -----------
Target 2005  5.53          7.33          5.75          6.17          5.57
- ------------ ------------- ------------- ------------- ------------- -----------
- ------------ ------------- ------------- ------------- ------------- -----------
Target 2010  5.92          7.54          6.04          6.44          5.80
- ------------ ------------- ------------- ------------- ------------- -----------
- ------------ ------------- ------------- ------------- ------------- -----------
Target 2015  6.04          7.56          6.21          6.58          5.93
- ------------ ------------- ------------- ------------- ------------- -----------
- ------------ ------------- ------------- ------------- ------------- -----------
Target 2020  6.02          7.52          6.20          6.59          5.98
- ------------ ------------- ------------- ------------- ------------- -----------
Target 2025  N/A           N/A           N/A           6.43          5.86


             9/30/93 AVM   9/30/94 AVM   9/30/95 AVM   9/30/96 AVM   9/30/97 AVM
- ------------ ------------- ------------- ------------- ------------- -----------
Target 2000  $100.21       $100.86       $100.99       $101.10       $101.13
- ------------ ------------- ------------- ------------- ------------- -----------
Target 2005  100.21        100.58        100.32        100.71        100.85
- ------------ ------------- ------------- ------------- ------------- -----------
- ------------ ------------- ------------- ------------- ------------- -----------
Target 2010  100.94        101.38        101.02        102.53        103.40
- ------------ ------------- ------------- ------------- ------------- -----------
- ------------ ------------- ------------- ------------- ------------- -----------
Target 2015  106.84        107.95        109.62        110.11        110.52
- ------------ ------------- ------------- ------------- ------------- -----------
- ------------ ------------- ------------- ------------- ------------- -----------
Target 2020  100.76        102.11        102.31        103.60        104.84
- ------------ ------------- ------------- ------------- ------------- -----------
Target 2025  N/A           N/A           N/A           109.24        110.88 

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.

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.


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 Policies

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


Fundamental Investment Policies

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  votes of  shareholders of a fund, as determined in
accordance with the Investment Company Act.

<TABLE>
- ------------------------ ----------------------------------------------------------------------------------------
Subject                  Policies
- ------------------------ ----------------------------------------------------------------------------------------
<S>                     <C>
Senior Securities        A fund may not issue senior securities, except as permitted under the Investment
                         Company Act.

Borrowing                A fund may not borrow money, except that the fund may borrow money for temporary or
                         emergency purposes (not for leveraging or investment) in an amount not exceeding
                         33-1/3% of the fund's total assets (including the amount borrowed) less liabilities
                         (other than borrowings).

Lending                  A fund may not lend any security or make any other loan if, as a result, more than
                         33-1/3% of the fund's total assets would be lent to other parties, 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.

Real Estate              A fund may not 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.

Concentration            A fund may not 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).

Underwriting             A fund may not 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.

Commodities              A fund may not 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.

Control                  A fund may not invest for purposes of exercising control over management.
- ------------------------ ----------------------------------------------------------------------------------------
</TABLE>

For purposes of the investment  restriction  relating to  concentration,  a fund
shall not purchase any  securities  that 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.


Nonfundamental Investment Policies

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

- ----------------- --------------------------------------------------------------
Subject           Policies
- ----------------- --------------------------------------------------------------
Diversification   A fund may not purchase  additional  investment  securities at
                  any time during which outstanding  borrowings exceed 5% of the
                  total assets of the fund.

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

Short Sales       A fund may not sell securities short,  unless it owns or
                  has the  right to  obtain  securities  equivalent  in kind and
                  amount  to  the  securities  sold  short,  and  provided  that
                  transactions  in futures  contracts and options are not deemed
                  to constitute selling securities short.

Margin            A fund may 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.
- ----------------- --------------------------------------------------------------

Temporary Defensive Measures

For temporary defensive  purposes,  a fund may invest in securities that may not
fit its investment objective or its stated market.  During a temporary defensive
period, a fund may direct its assets to the following investment vehicles:

0    interest-bearing bank accounts or Certificates of Deposit

0    U.S. government securities and repurchase agreements collateralized by U.S.
     government securities

0    money market funds


Portfolio Turnover

Under normal  conditions,  the funds' annual  portfolio  turnover  rates are not
expected to exceed 100%.  Because a higher  turnover rate increases  transaction
costs and may increase taxable capital gains,  the advisor  carefully weighs the
potential  benefits of short-term  investing against these  considerations.  The
funds' portfolio turnover rates are listed in the Financial  Highlights table in
the Prospectus.


Management

The Board of Trustees

The Board of Trustees  oversees the  management  of the funds and meets at least
quarterly  to  review  reports  about  fund  operations.  Although  the Board of
Trustees does not manage the funds, it has hired the advisor to do so. More than
half of the trustees are "independent" of the funds' the advisor,  that is, they
are not employed by and have no financial interest in the advisor.

The individuals  listed in the table below whose names are marked by an asterisk
(*) are interested  persons of the funds (as defined in the  Investment  Company
Act) by virtue of, among other considerations, their affiliation with either the
funds; the advisor,  American Century  Investment  Management,  Inc.; the funds'
agent for  transfer  and  administrative  services,  American  Century  Services
Corporation  (ACSC); the funds' distribution agent and  co-administrator,  Funds
Distributor,  Inc. (FDI); the parent  corporation,  American Century  Companies,
Inc. (ACC) or ACC's  subsidiaries;  or other funds advised by the advisor.  Each
trustee  listed  below  serves  as a trustee  or  director  of seven  registered
investment  companies in the American  Century  family of funds,  which are also
advised by the advisor.

<TABLE>
- --------------------------- ---------- --------------------------------------------------------------------------
                            Position(s)
Name (Age)                  Held       Principal Occupation(s)
Address                     With Fund  During Past 5 Years
- --------------------------- ---------- --------------------------------------------------------------------------
<S>                        <C>        <C>              
Albert A. Eisenstat (68)    trustee    Independent Director, Commercial Metals Co. (1982 to present)
1665 Charleston Road                   Independent Director, Sungard Data Systems (1991 to present)
Mountain View, CA  94043               Independent Director, Business Objects S/A (software & programming, 1994
                                       to present)

Ronald J. Gilson (52)       trustee    Charles J. Meyers Professor of Law and Business, Stanford Law School
1665 Charleston Road                   (since 1979)
Mountain View, CA  94043               Mark and Eva Stern Professor of Law and Business, Columbia University
                                       School of Law (since 1992);
                                       Counsel, Marron, Reid & Sheehy (a San Francisco law firm, since 1984)

William M. Lyons* (42)      trustee    President, Chief Operating Officer and Assistant Secretary, ACC
4500 Main Street                       Executive Vice President, Chief Operating Officer and Secretary, ACSC
Kansas City, MO 64111                  and ACIS

Myron S. Scholes (57)       trustee    Principal, Long-Term Capital Management (investment advisor, since 1993)
1665 Charleston Road                   Frank E. Buck Professor of Finance, Stanford Graduate School of Business
Mountain View, CA  94043               (since 1983)
                                       Director, Dimensional Fund Advisors (investment advisor, since 1982)
                                       Director, Smith Breeden Family of Funds (since 1992)
                                       Managing Director, Salomon Brothers Inc. (securities brokerage, 1991 to
                                       1993)

Kenneth E. Scott (69)       trustee    Ralph M. Parsons Professor of Law and Business, Stanford Law School
1665 Charleston Road                   (since 1972)
Mountain View, CA  94043               Director, RCM Capital Funds, Inc. (since 1994)

Isaac Stein (51)            trustee    Director, Raychem Corporation (electrical equipment, since 1993)
1665 Charleston Road                   President, Waverley Associates, Inc. (private investment firm, since
Mountain View, CA  94043               1983) Director, ALZA Corporation (pharmaceuticals, since 1987).
                                       trustee, Stanford University (since 1994) Chairman, Stanford Health 
                                       Services (since 1994)

James E. Stowers III* (39)  trustee,   Chief Executive Officer and Director, ACC
4500 Main Street            Chairman   President, Chief Executive Officer and Director, ACSC and ACIS
Kansas City, MO 64111       of the
                            Board

Jeanne D. Wohlers (53)      trustee    Private Investor
1665 Charleston Road                   Director and Partner, Windy Hill Productions, LP
Mountain View, CA  94043               Vice President and Chief Financial Officer, Sybase, Inc. (software
                                       company, 1988 to 1992)
- --------------------------- ---------- --------------------------------------------------------------------------

Committees

The Board has three  committees  to oversee  specific  functions  of the Trust's
operations.  Only independent  trustees serve on these  committees.  Information
about these committees appears in the table below:

- ------------------ ------------------- --------------------------------------------------------------------------
Committee          Members             Function of Committee
- ------------------ ------------------- --------------------------------------------------------------------------
Audit              Albert A.           The Audit Committee selects and oversees the activities of the Trust's
                   Eisenstat           independent auditor. The Committee receives reports from the advisor's
                   Kenneth E. Scott    Internal Audit Department, which is accountable solely to the Committee.
                   Jeanne D. Wohlers   The Committee also receives reporting about compliance matters affecting
                                       the Trust.

Nominating         Albert A.           The Nominating Committee primarily considers and recommends individuals
                   Eisenstat           for nomination as trustees. The names of potential trustee candidates
                   Ronald J. Gilson    are drawn from a number of sources, including recommendations from
                   Myron S. Scholes    members of the Board, management and shareholders. This committee also
                   Kenneth E. Scott    reviews and makes recommendations to the Board with respect to the
                   Isaac Stein         composition of Board committees and other Board-related matters,
                   Jeanne D. Wohlers   including its organization, size, composition, responsibilities,
                                       functions and compensation.

Portfolio          Ronald J. Gilson    The Portfolio Committee reviews quarterly the investment activities and
                   Myron S. Scholes    strategies used to manage fund assets. The Committee regularly receives
                   Isaac Stein         reports from portfolio managers, credit analysts and other investment
                                       personnel concerning the funds' investments.

Quality of         Ronald J. Gilson    The Quality of Service Committee reviews the level and quality of
Service            Myron S. Scholes    transfer agent and administrative services provided to the funds and
                   Isaac Stein         their shareholders. It receives and reviews reports comparing those
                                       services to fund competitors and seeks to improve such services where
                                       feasible and appropriate.
- ------------------ ------------------- --------------------------------------------------------------------------

Compensation of Trustees

The  trustees  also serve as trustees for six (6)  American  Century  investment
companies other than American Century Target  Maturities Trust. Each trustee who
is not an "interested  person" as defined in the Investment Company Act receives
compensation  for  service as a member of the Board of all seven such  companies
based on a schedule  that is based on the number of meetings held and the assets
of the funds for which the  meetings  are  held.  These  fees and  expenses  are
divided among the seven investment companies based, in part, upon their relative
net assets.  Under the terms of the management  agreement with the advisor,  the
funds are responsible for paying such fees and expenses.

The  table  presented  shows the  aggregate  compensation  paid for the  periods
indicated by the Trust and by the American Century family of funds as a whole to
each  trustee  who is not an  "interested  person" as defined in the  Investment
Company Act.

 Aggregate Trustee Compensation for Fiscal Year Ended August 31, 1998
- ---------------------------- ---------------------- ------------------- ------------------ ---------------------
                                                                                            Total Compensation
                                                        Pension or      Estimated Annual         from the
                              Total Compensation        Retirement        Benefits Upon      American Century
Name of Trustee                      from            Benefits Accrued      Retirement        Family of Funds
                                   the Funds         as Part of Fund
                                    Expenses
- ---------------------------- ---------------------- ------------------- ------------------ ---------------------
Albert A. Eisenstat                    $                   N/A                 N/A                  $
Ronald J. Gilson                       $                   N/A                 N/A                  $
Myron S. Scholes                       $                   N/A                 N/A                  $
Kenneth E. Scott                       $                   N/A                 N/A                  $
Isaac Stein                            $                   N/A                 N/A                  $
Jeanne D. Wohlers                      $                   N/A                 N/A                  $
- ---------------------------- ---------------------- ------------------- ------------------ ---------------------
</TABLE>

The Trust has  adopted  the  American  Century  Deferred  Compensation  Plan for
Non-Interested  Directors and trustees. Under the plan, the independent trustees
may defer  receipt of all or any part of the fees to be paid to them for serving
as trustees.

Under the plan, all deferred fees are credited to an account  established in the
name of the  trustees.  The amounts  credited to the  account  then  increase or
decrease,  as the case may be, in accordance with the performance of one or more
of the American  Century  funds that are  selected by the  trustee.  The account
balance  continues  to  fluctuate  in  accordance  with the  performance  of the
selected  fund or funds  until  final  payment of all  amounts  credited  to the
account.  Trustees are allowed to change their  designation of mutual funds from
time to time.

No deferred  fees are payable until such time as a trustee  resigns,  retires or
otherwise  ceases to be a member of the Board of Trustees.  Trustees may receive
deferred fee account  balances either in a lump sum payment or in  substantially
equal installment payments to be made over a period not to exceed 10 years. Upon
the death of a trustee,  all remaining deferred fee account balances are paid to
the trustee's beneficiary or, if none, to the trustee's estate.

The plan is an unfunded  plan and,  accordingly,  the Trust has no obligation to
segregate  assets to secure or fund the deferred fees. The rights of trustees to
receive  their  deferred  fee account  balances  are the same as the rights of a
general unsecured  creditor of the Trust. The plan may be terminated at any time
by the  administrative  committee of the plan. If  terminated,  all deferred fee
account balances will be paid in a lump sum.

No deferred  fees were paid to any trustee under the plan during the fiscal year
ended August 31, 1998.


Officers

Background for the officers of the Trust is provided below. All persons named as
officers  of the  Trust  also  serve  in  similar  capacities  for the 12  other
investment  companies advised by American Century. Not all officers of the Trust
are listed;  only those officers with policy-making  functions for the Trust are
listed.  No officer is  compensated  for his or her service as an officer of the
Trust. The individuals  listed in the table below are interested  persons of the
funds (as  defined in the  Investment  Company  Act) by virtue of,  among  other
considerations, their affiliation with either the funds; the advisor, ACSC, FDI,
ACC or ACC's subsidiaries, as specified in the table.

<TABLE>
- --------------------------- ------------------- ------------------------------------------------------------------
                            Position(s) Held
Name (Age)                  With Fund           Principal Occupation(s)
Address                                         During Past 5 Years
- --------------------------- ------------------- ------------------------------------------------------------------
<S>                         <C>                 <C>                                                                           
George A. Rio (43)          President           Executive Vice President and Director of Client Services, FDI
4500 Main Street                                (March 1998 to present).
Kansas City, Missouri                           Senior Vice President and Senior Key Account Manager, Putnam
64111                                           Mutual Funds (June 1995 to March 1998)
                                                Director Business Development, First Data Corporation (May 1994
                                                to June 1995)
                                                Senior Vice President and Manager of Client Services and
                                                Director of Internal Audit, The Boston Company, Inc. (September
                                                1983 to May 1994)

Mary A. Nelson (33)         Vice President      Vice President and Manager of Treasury Services and
4500 Main Street                                Administration, FDI, (1994 to present)
Kansas City, Missouri                           Assistant Vice President and Client Manager, The Boston Company,
64111                                           Inc. (1989 to 1994)

Maryanne Roepke, CPA (42)   Vice President      Vice President, Treasurer and Principal Accounting Officer, ACSC
4500 Main Street            and Treasurer
Kansas City, Missouri
64111

Patrick A. Looby (39)       Vice President      Vice President and Assistant General Counsel, ACSC
4500 Main Street
Kansas City, MO 64111

Christopher J. Kelley (33)  Vice President      Vice President and Associate General Counsel, FDI (since July
4500 Main Street                                1996)
Kansas City, MO 64111                           Assistant Counsel, Forum Financial Group (April 1994 to July
                                                1996)
                                                Compliance Officer, Putnam Investments (1992 to April 1994)

Douglas A. Paul (51)        Secretary and       Vice President and Associate General Counsel, ACSC
1665 Charleston Road        Vice President
Mountain View, CA  94043

C. Jean Wade (34)           Controller          Controller-Fund Accounting, ACSC
4500 Main Street
Kansas City, MO 64111
- --------------------------- ------------------- ------------------------------------------------------------------
</TABLE>

The Funds' Biggest Shareholders

As of December 28, 1998, the following  companies were the record owners of more
than 5% of a fund's outstanding shares:

- ----------------- ------------------------------ ---------------- -----------
                                                                  % of
                                                                  Shares
Fund              Shareholder                      # of Shares    Out-standing
                                                      Held
- ----------------- ------------------------------ ---------------- -----------
Target 2000       Charles Schwab & Co.                 2,169,419       17.2%
                  101 Montgomery Street
                  San Francisco, CA 94101
                  Bank of America                      1,328,888       10.5%
                  P.O. Box 513577
                  Los Angeles, CA 90051
Target 2020       Charles Schwab & Co.                 5,739,593       14.9%
                  101 Montgomery Street
                  San Francisco, CA 94101
Target 2025       Charles Schwab & Co.                 2,995,086       13.7%
                  101 Montgomery Street
                  San Francisco, CA 94101
- ----------------- ------------------------------ ---------------- -----------

The funds are unaware of any other  shareholders,  beneficial or of record,  who
own more than 5% of a fund's  outstanding  shares.  As of December 28, 1998, the
officers and trustees of the funds,  as a group,  own less than 1% of any fund's
outstanding shares.


Service Providers

The funds have no employees. To conduct its day-to-day activities, the Trust has
hired a number of  service  providers.  Each  service  provider  has a  specific
function to fill on behalf of the Trust and is described below.

The  advisor  and ACSC are both  wholly  owned  by ACC.  James E.  Stowers  Jr.,
Chairman of ACC,  controls  ACC by virtue of his  ownership of a majority of its
common stock.


Investment Advisor

Each fund has an  investment  management  agreement  with the advisor,  American
Century  Investment  Management,  Inc., dated August 1, 1997. This agreement was
approved by the shareholders of each of the funds on July 30, 1997.

A description of the  responsibilities  of the advisor appears in the Prospectus
under the caption "Management."

For the services provided to the funds, the advisor receives a monthly fee based
on a percentage of the average net assets of the fund.  The annual rate at which
this fee is assessed is determined  monthly in a two-step process:  First, a fee
rate  schedule  is applied  to the assets of all of the funds of its  investment
category  managed by the advisor (the  "Investment  Category Fee"). For example,
when calculating the fee for a money market fund, all of the assets of the money
market  funds  managed  by the  advisor  are  aggregated.  The three  investment
categories  are money  market  funds,  bond funds and equity  funds.  Second,  a
separate fee rate  schedule is applied to the assets of all of the funds managed
by the advisor (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 advisor.

The  schedules  by which the  Investment  Category  Fees are  determined  are as
follows:

                                           --------------------- ---------------
Investment Category Fee Schedule for       Category Assets        Fee Rate
                                           --------------------- ---------------
0        Target 2000                       First $1 billion       0.3600%
0        Target 2005                       Next $1 billion        0.3080%
0        Target 2010                       Next $3 billion        0.2780%
0        Target 2015                       Next $5 billion        0.2580%
0        Target 2020                       Next $15 billion       0.2450%
0        Target 2025                       Next $25 billion       0.2430%
                                           Thereafter             0.2425%
                                           --------------------- ---------------


The Complex Fee is determined according to the schedule on the right.

  Complex Fee Schedule
- ---------------------- ---------------
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%
- ---------------------- ---------------

On the first  business day of each month,  the funds pay a management fee to the
advisor 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
advisor,  cast in person at a meeting  called for the  purpose of voting on such
approval.

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

The  management  agreement  provides that the advisor 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 advisor  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 advisor. 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 fund,  or in different  amounts and
at  different  times  for more than one but less than all  clients  or fund.  In
addition,  purchases  or sales of the same  security may be made for two or more
clients or fund on the same date.  Such  transactions  will be  allocated  among
clients in a manner  believed by the advisor 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 advisor may  aggregate  purchase and sale orders of the funds with  purchase
and sale  orders  of its  other  clients  when the  advisor  believes  that such
aggregation  provides  the best  execution  for the funds.  The funds'  Board of
Trustees has approved the policy of the advisor 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
advisor  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  advisor
receives  no  additional  compensation  or  remuneration  as a  result  of  such
aggregation.

***********CALLOUT BOX*******************************

Other Advisory Relationships

In addition  to  managing  the funds,  the  advisor  also acts as an  investment
advisor to 12 institutional  accounts and to the following registered investment
companies:

0        American Century Mutual Funds, Inc.
0        American Century World Mutual Funds, Inc.
0        American Century Premium Reserves, Inc.
0        American Century Variable Portfolios, Inc.
0        American Century Capital Portfolios, Inc.
0        American Century Strategic Asset Allocations, Inc.
0        American Century Municipal Trust
0        American Century Government Income Trust
0        American Century Investment Trust
0        American Century California Tax-Free and Municipal Funds
0        American Century Quantitative Equity Funds
0        American Century International Bond Funds.

***********END CALLOUT BOX*******************************

Prior to August 1, 1997, Benham Management  Corporation served as the investment
advisor to the funds. Benham Management  Corporation was merged into the advisor
in late 1997.

Investment management fees paid by each fund for the fiscal periods ended August
31, 1998, 1997 and 1996, are indicated in the following  table.  Fee amounts are
net of amounts  reimbursed  or  recouped  under the funds'  previous  investment
advisory agreement with Benham Management Corporation.

  Unified Management Fees
- --------------------------- --------------------- ---------------------
Fund                                1998                  1997
- --------------------------- --------------------- ---------------------
Target 2000                                           $1,309,574
Target 2005                                              654,212
Target 2010                                              346,562
Target 2015                                            1,340,435
Target 2020                                              920,960
Target 2025                                              527,834
- --------------------------- --------------------- ---------------------
  Investment Advisory Fees
- -----------------------------------------------------------------------
Fund                                                  1996
- -----------------------------------------------------------------------
Target 2000                                       $1,240,288
Target 2005                                          563,912
Target 2010                                          294,665
Target 2015                                        1,249,491
Target 2020                                          833,863
Target 2025                                          379,805
- -----------------------------------------------------------------------

Distributor

The funds'  shares are  distributed  by Funds  Distributors,  Inc., a registered
broker-dealer.  The distributor is a wholly owned indirect  subsidiary of Boston
Institutional  Group,  Inc. The distributor's  principal  business address is 60
State Street, Suite 1300, Boston, Massachusetts 02109.

The  distributor  is  the  principal  underwriter  of  the  funds'  shares.  The
distributor makes a continuous,  best efforts underwriting of the funds' shares.
This means that the distributor has no liability for unsold shares.


Transfer Agent and Administrator

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,  computer hardware and software and personnel, for
the day-to-day  administration of the funds and of the advisor. The advisor pays
American Century Services Corporation for such services.

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 August 31, 1997 and 1996,  are  indicated  in the table  below.  Fee
amounts are net of expense limitations.

  Administrative Fees
- --------------------------------- ------------------ -----------------
Fund                                 Fiscal 1997       Fiscal 1996
- --------------------------------- ------------------ -----------------
Target 2000                                $368,680          $409,257
Target 2005                                 160,175           186,076
Target 2010                                  94,859            97,232
Target 2015                                 373,977           412,298
Target 2020                                 256,250           275,154
Target 2025                                 163,254           179,812

  Transfer Agent Fees
- --------------------------------- ------------------ -----------------
Fund                                 Fiscal 1997       Fiscal 1996
- --------------------------------- ------------------ -----------------
Target 2000                                $190,056          $229,922
Target 2005                                 112,925           145,450
Target 2010                                  39,157            47,787
Target 2015                                 164,081           188,108
Target 2020                                 108,533           119,915
Target 2025                                  78,485            91,516

Other Service Providers

Custodian Banks

Chase Manhattan Bank, 770 Broadway,  10th Floor,  New York, New York 10003-9598,
and Commerce Bank, N.A., 1000 Walnut,  Kansas City,  Missouri 64105, each serves
as  custodian  of the  assets  of the  funds.  The  custodians  take  no part in
determining the investment policies of the funds or in deciding which securities
are purchased or sold by the funds.  The funds,  however,  may invest in certain
obligations of the custodians and may purchase or sell certain  securities  from
or to the custodians.


Independent Auditors

PricewaterhouseCoopers  LLP is the independent auditor of the funds. The address
of  PricewaterhouseCoopers  LLP is City Center Square,  1100 Main Street,  Suite
900, Kansas City, Missouri 64105-2140.  As the independent auditor of the funds,
PricewaterhouseCoopers  provides  services  including  (1)  audit of the  annual
financial  statements,  (2) assistance and  consultation  in connection with SEC
filings and (3) review of the annual  federal  income tax return  filed for each
fund.


Brokerage Allocation

Under the management  agreement  between the funds and the advisor,  the advisor
has the  responsibility  of selecting  brokers and dealers to execute  portfolio
transactions.  In many  transactions,  the  selection of the broker or dealer is
determined by the  availability of the desired  security and its offering price.
In other  transactions,  the  selection of broker or dealer is a function of the
selection  of  market  and the  negotiation  of price,  as well as the  broker's
general  execution and  operational  and financial  capabilities  in the type of
transaction involved. The advisor will seek to obtain prompt execution of orders
at the most favorable  prices or yields.  The advisor may choose to purchase and
sell portfolio  securities to and from dealers who provide services or research,
statistical  and  other  information  to the  funds  and to  the  advisor.  Such
information  or services  will be in addition to and not in lieu of the services
required to be performed  by the  advisor,  and the expenses of the advisor will
not  necessarily  be  reduced as a result of the  receipt  of such  supplemental
information.


Information About Fund Shares

Generally

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.

Each fund votes separately on matters  affecting that fund  exclusively.  Voting
rights  are not  cumulative,  so that  investors  holding  more  than 50% of the
Trust's (i.e.,  all funds')  outstanding  shares may be able to elect a Board of
Trustees.  The Trust 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 fund
voted in favor of a particular nominee or all nominees as a group.

Each shareholder has rights to dividends and distributions  declared by the fund
he or she owns and to the net  assets  of such  fund  upon  its  liquidation  or
dissolution  proportionate  to his or her share ownership  interest in the fund.
Shares  of each  fund  have  equal  voting  rights,  although  each  fund  votes
separately on matters affecting that fund exclusively.

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  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.


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  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.


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 12b-1

Rule 12b-1 permits an  investment  company to pay expenses  associated  with the
distribution  of its shares in accordance  with a plan adopted by the investment
company's Board of Trustees and approved by its  shareholders.  Pursuant to such
rule, the Board of Trustees and initial  shareholder of the 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  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.


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 at
2 p.m. Central time each day the Exchange is open for business. The Exchange has
designated the following  holiday  closings for 1999: 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.

The advisor  typically  completes  its trading on behalf of each fund in various
markets  before the  Exchange  closes for the day.  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  earned on portfolio  securities are accrued
daily.

Securities  held by the funds  normally  are  priced by an  independent  pricing
service,  provided  that such prices are  believed by the advisor to reflect the
fair market value of portfolio securities.

Because there are hundreds of thousands of municipal issues outstanding, and the
majority of them do not trade daily, the prices provided by pricing services are
generally  determined  without  regard to bid or last sale  prices.  In  valuing
securities,  the pricing  services  generally  take into  account  institutional
trading activity,  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  advisor  under  the  general
supervision  of the Board of  Trustees.  There are a number of pricing  services
available,  and the  advisor,  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  not priced by a pricing  service are valued at the mean  between the
most  recently  quoted  bid and  ask  prices  provided  by  broker-dealers.  The
municipal bond market is typically a "dealer  market";  that is, dealers buy and
sell bonds for their own accounts  rather than for customers.  As a result,  the
spread, or difference  between bid and asked prices, for certain municipal bonds
may differ substantially among dealers.

Securities  maturing within 60 days of the valuation date may be valued at 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.


Taxes

Federal Income Tax

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 be exempt from  federal  income taxes to the extent
that it  distributes  substantially  all of its net  investment  income  and net
realized capital gains (if any) to shareholders. If a fund fails to qualify as a
regulated  investment  company,  it  will be  liable  for  taxes,  significantly
reducing its distributions to shareholders and eliminating shareholders' ability
to treat  distributions  of the funds in the manner  they were  realized  by the
funds.

Certain  of the bonds  purchased  by the funds may be treated as bonds that were
originally issued at a discount. Original issue discount represents interest for
federal  income tax  purposes  and can  generally  be defined as the  difference
between the price at which a security was issued and its stated redemption price
at maturity. Original issue discount, although no cash is actually received by a
fund until the maturity of the bond, is treated for federal  income tax purposes
as income  earned by a fund over the term of the bond,  and therefore is subject
to the distribution requirements of the Code. The annual amount of income earned
on such a bond by a fund  generally  is  determined  on the basis of a  constant
yield to maturity that takes into account the semiannual  compounding of accrued
interest.  Original  issue discount on an obligation  with interest  exempt from
federal income tax will constitute tax-exempt interest income to the fund.

In addition,  some of the bonds may be  purchased  by a fund at a discount  that
exceeds the  original  issue  discount on such bonds,  if any.  This  additional
discount  represents  market discount for federal income tax purposes.  The gain
realized on the disposition of any bond having market discount generally will be
treated as taxable  ordinary income to the extent it does not exceed the accrued
market discount on such bond (unless a fund elects to include market discount in
income in tax years to which it is  attributable  or if the amount is considered
de  minimis).  Generally,  if the fund elects to include the discount in income,
market discount accrues on a daily basis for each day the bond is held by a fund
on a constant yield to maturity basis. In the case of any debt security having a
fixed  maturity  date of not more than one year  from  date of  issue,  the gain
realized on disposition generally will be treated as short-term capital gain. In
general,  gain realized on  disposition of a security held less than one year is
treated as short-term capital gain.

It is  intended  that  each  fund's  assets  will be  sufficiently  invested  in
municipal  securities so that each fund will be eligible to pay  exempt-interest
dividends (as defined in the Code) to shareholders.  A fund's dividends  payable
from net tax-exempt interest earned from municipal securities will qualify to be
designated as exempt-interest  dividends if, at the close of each quarter of the
fund's  taxable  year,  at least 50% of the  value of the  fund's  total  assets
consists of  municipal  securities.  Exempt-interest  dividends  distributed  to
shareholders are not included in shareholders'  gross income for regular federal
income tax  purposes.  The  percentage  of income that is  tax-exempt is applied
uniformly  to all income  distributions  made during each  calendar  year.  This
percentage may differ from the actual  percentage of tax-exempt  income received
during any particular month.

Distributions  of net investment  income  received by a fund from  investment in
debt  securities  other than municipal  securities,  of ordinary income realized
upon the disposition of tax-exempt  market discount bonds,  and any net realized
short-term capital gains distributed by the fund will be taxable to shareholders
as  ordinary  income.  Because  the funds'  investment  income is  derived  from
interest rather than dividends, no portion of such distributions is eligible for
the dividends-received deduction available to corporations.

Under the Code,  any  distribution  of a fund's net realized  long-term  capital
gains  designated  by  the  fund  as a  capital  gain  dividend  is  taxable  to
shareholders as long-term capital gains, regardless of the length of time shares
are held.  If a capital  gain  dividend is paid with  respect to any shares of a
fund sold at a loss after  being  held for six months or less,  the loss will be
treated as a long-term  capital loss for tax  purposes.  The Code also  provides
that if a  shareholder  holds  shares  of a fund for six  months  or  less,  the
deduction of any loss on the sale or exchange of those shares is  disallowed  to
the extent that the shareholder received exempt-interest  dividends with respect
to those shares.

When a fund  has a  capital  loss  carryover,  it does  not  make  capital  gain
distributions until the loss has been offset or expired.

Interest on certain  types of  industrial  development  bonds (small  issues and
obligations issued to finance certain exempt facilities that may be leased to or
used by persons  other than the  issuer) is not exempt from  federal  income tax
when received by "substantial  users" or persons related to substantial users as
defined  in the Code.  The term  "substantial  user"  includes  any  "non-exempt
person" who regularly uses in trade or business part of a facility financed from
the proceeds of industrial  development bonds. The funds may invest periodically
in  industrial  development  bonds  and,  therefore,   may  not  be  appropriate
investments  for entities that are substantial  users of facilities  financed by
industrial   development  bonds  or  "related  persons"  of  substantial  users.
Generally,  an individual  will not be a related  person of a  substantial  user
under the Code unless he or his immediate  family  (spouse,  brothers,  sisters,
ancestors and lineal  descendants) owns directly or indirectly in aggregate more
than 50% in the equity value of the substantial user.

From time to time, proposals have been introduced in Congress for the purpose of
restricting  or  eliminating  the federal  income tax  exemption for interest on
municipal securities,  and similar proposals may be introduced in the future. If
such a proposal were  enacted,  the  availability  of municipal  securities  for
investment by the funds and the funds' NAVs would be adversely  affected.  Under
these  circumstances,  the  trustees  would  re-evaluate  the funds'  investment
objectives  and policies and would  consider  either changes in the structure of
the Trust or its dissolution.

The  information  above  is only a  summary  of  some of the tax  considerations
affecting the funds and their shareholders.  No attempt has been made to discuss
individual tax consequences.  A prospective  investor should consult with his or
her tax  advisors or state or local tax  authorities  to  determine  whether the
funds are suitable investments.


How Fund Performance Information is Calculated

*****************CALLOUT BOX****************************  

Fund Yields (30-day period ended September 30, 1998)

- ------------------------------------- -------------
Fund                                  30-Day Yield
- ------------------------------------- -------------
Target 2000                              3.67%
Target 2005                              3.97%
Target 2010                              4.64%
Target 2015                              5.04%
Target 2020                              4.55%
Target 2025
- ------------------------------------- -------------
*****************END CALLOUT BOX********************


The  funds  may  quote  performance  in  various  ways.  Historical  performance
information will be used in advertising and sales literature.

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

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

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

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 (if any) and any change in the fund's NAV during the period.


*****************CALLOUT BOX****************************

Average Annual Total Returns
- ----------------------------- -------- -------- -------- --------
                              One-Year Five-YearTen-Years Life
Fund                                                     of Fund
- ----------------------------- -------- -------- -------- --------
Target 2000(1)                 3.17%    2.76%    3.64%    3.86%
Target 2005 (1)                3.15%    2.82%     --      3.12%
Target 2010 (1)                5.42%    4.52%     --      4.74%
Target 2015 (2)                7.39%    6.12%    6.67%    6.95%
Target 2020 (3)                9.70%    7.27%    7.97%    8.48%
Target 2025 (4)               10.61%    7.76%    8.13%    6.70%

(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.

*****************END CALLOUT BOX********************


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 10 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 the 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.

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 also may utilize reprints from
newspapers  and magazines  furnished by third  parties to illustrate  historical
performance.


Multiple Class Performance Advertising

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


Financial Statements

The financial  statements of the funds,  including the  Statements of Assets and
Liabilities and the Statements of Operations for the fiscal year ended September
30, 1998, and the Statements of Changes in Net Assets for the fiscal years ended
September 30, 1997 and 1998, are included in the Annual Reports to  shareholders
for the fiscal  year  ended  September  30,  1998.  The report on the  financial
highlights  for the fiscal years 1993,  1994,  1995 and 1996 are included in the
Annual  Reports to  shareholders  for the fiscal year ended  September 30, 1996,
Each such Annual Report is  incorporated  herein by  reference.  You may receive
copies of the reports  without  charge upon  request to American  Century at the
address and phone number shown on the back cover of this Statement of Additional
Information.


Explanation of Fixed Income Securities Ratings

As described in the Prospectus, the funds may invest in fixed income securities.
Those investments,  however, are subject to certain credit quality restrictions,
as noted in the Prospectus.  The following is a summary of the rating categories
referenced in the prospectus disclosure.


<TABLE>
<CAPTION>
Bond Ratings
- ---------- ------------ -------------------------------------------------------------------------------------------------
   S&P       Moody's    Description
- ---------- ------------ -------------------------------------------------------------------------------------------------
<S>         <C>         <C>
   AAA         Aaa      These are the highest ratings assigned by S&P and Moody's to a debt obligation and indicates an
                        extremely strong capacity to pay interest and repay principal.
   AA          Aa       Debt rated in this category is considered to have a very strong capacity to pay interest and
                        repay principal and differs from AAA/Aaa issues only in a small degree.
    A           A       Debt rated A has a strong capacity to pay interest and repay principal although it is somewhat
                        more susceptible to the adverse effects of changes in circumstances and economic conditions
                        than debt in higher-rated categories.
   BBB         Baa      Debt rated BBB/Baa is regarded as having an adequate capacity to pay interest and repay
                        principal. Whereas it normally exhibits adequate protection parameters, adverse economic
                        conditions or changing circumstances are more likely to lead to a weakened capacity to pay
                        interest and repay principal for debt in this category than in higher-rated categories.
   BB          Ba       Debt rated BB/Ba has less near-term vulnerability to default than other speculative issues.
                        However, it faces major ongoing uncertainties or exposure to adverse business, financial or
                        economic conditions that could lead to inadequate capacity to meet timely interest and
                        principal payments. The BB rating category also is used for debt subordinated to senior debt
                        that is assigned an actual or implied BBB- rating.
    B           B       Debt rated B has a greater vulnerability to default but currently has the capacity to meet
                        interest payments and principal repayments. Adverse business, financial or economic conditions
                        will likely impair capacity or willingness to pay interest and repay principal. The B rating
                        category is also used for debt subordinated to senior debt that is assigned an actual or
                        implied BB/Ba or BB-/Ba3 rating.
   CCC         Caa      Debt rated CCC/Caa has a currently identifiable vulnerability to default and is dependent upon
                        favorable business, financial and economic conditions to meet timely payment of interest and
                        repayment of principal. In the event of adverse business, financial or economic conditions, it
                        is not likely to have the capacity to pay interest and repay principal. The CCC/Caa rating
                        category is also used for debt subordinated to senior debt that is assigned an actual or
                        implied B or B-/B3 rating.
   CC          Ca       The rating CC/Ca typically is applied to debt subordinated to senior debt that is assigned an
                        actual or implied CCC/Caa rating.
    C           C       The rating C typically is applied to debt subordinated to senior debt, which is assigned an
                        actual or implied CCC-/Caa3 debt rating. The C rating may be used to cover a situation where a
                        bankruptcy petition has been filed, but debt service payments are continued.
   CI           -       The rating CI is reserved for income bonds on which no interest is being paid.
    D           D       Debt rated D is in payment default. The D rating category is used when interest payments or
                        principal payments are not made on the date due even if the applicable grace period has not
                        expired, unless S&P believes that such payments will be made during such grace period. The D
                        rating also will be used upon the filing of a bankruptcy petition if debt service payments are
                        jeopardized.
- ---------- ------------ -------------------------------------------------------------------------------------------------

To provide more detailed  indications of credit  quality,  the Standard & Poor's
ratings  from AA to CCC may be modified by the  addition of a plus or minus sign
to show  relative  standing  within  these major rating  categories.  Similarly,
Moody's adds numerical  modifiers (1,2,3) to designate  relative standing within
its major bond rating categories. Fitch Investors Service, Inc. also rates bonds
and uses a ratings system that is substantially similar to that used by Standard
& Poor's.


COMMERCIAL PAPER RATINGS
- ---------- ------------ -------------------------------------------------------------------------------------------------
   S&P       Moody's    Description
- ---------- ------------ -------------------------------------------------------------------------------------------------
   A-1       Prime-1    This indicates that the degree of safety regarding timely payment is strong. Standard & Poor's
              (P-1)     rates those issues determined to possess extremely strong safety characteristics as A-1+.
   A-2       Prime-2    Capacity for timely payment on commercial paper is satisfactory, but the relative degree of
              (P-2)     safety is not as high as for issues designated A-1. Earnings trends and coverage ratios, while
                        sound, will be more subject to variation. Capitalization characteristics, while still
                        appropriated, may be more affected by external conditions. Ample alternate liquidity is
                        maintained.
   A-3       Prime-3    Satisfactory capacity for timely repayment. Issues that carry this rating are somewhat more
              (P-3)     vulnerable to the adverse changes in circumstances than obligations carrying the higher
                        designations.
- ---------- ------------ -------------------------------------------------------------------------------------------------

NOTE RATINGS
- ---------- ------------ -------------------------------------------------------------------------------------------------
   S&P       Moody's    Description
- ---------- ------------ -------------------------------------------------------------------------------------------------
  SP-1       MIG-1;     Notes are of the highest quality enjoying strong protection from established cash flows of
             VMIG-1     funds for their servicing or from established and broad-based access to the market for
                        refinancing, or both.
  SP-2       MIG-2;     Notes are of high quality, with margins of protection ample, although not so large as in the
             VMIG-2     preceding group.
  SP-3       MIG-3;     Notes are of favorable quality, with all security elements accounted for, but lacking the
             VMIG-3     undeniable strength of the preceding grades. Market access for refinancing, in particular, is
                        likely to be less well established.
  SP-4       MIG-4;     Notes are of adequate quality, carrying specific risk but having protection and not distinctly
             VMIG-4     or predominantly speculative.
- ---------- ------------ -------------------------------------------------------------------------------------------------
</TABLE>


More  information  about  the  funds  is  contained  in the  funds'  annual  and
semiannual reports.  These contain more information about the funds' investments
and the market conditions and investment strategies that significantly  affected
the funds'  performance  during the most recent  six-month  fiscal  period.  The
annual and semiannual  reports are incorporated by reference into this SAI. This
means that it is legally part of this SAI.

0    You can  get  the  annual  and  semiannual  reports  for  free  and ask any
     questions about the funds by contacting us at one of the addresses or phone
     numbers listed below.

- ---------------------------------- ---------------------------------------------
American Century Investments       Institutional, Corporate, Keogh, SEP/SARSEP, 
P.O. Box 419200                    SIMPLE and 403(b) Services
Kansas City, Missouri  64141-6200  1-800-345-3533

www.americancentury.com            Telecommunications Device for Deaf
                                   1-800-634-4113 or 816-444-3485
Investor Services
1-800-345-2021 or 816-531-5575     Fax
                                   816-340-7962
Automated Information Line
1-800-345-8765
- ---------------------------------- ---------------------------------------------

0    If you own or are considering purchasing fund shares through

     o    an employer-sponsored retirement plan
     o    a bank
     o    a broker-dealer
     o    an insurance company
     o    another financial intermediary

     you can get the annual and semiannual reports directly from them.

0    You can also get information about the funds from the SEC.

     o    In person.  Go to the SEC's Public Reference Room in Washington,  D.C.
          Call  1-800-SEC-0330  for  information  about  location  and  hours of
          operation.
     o    On the internet. Go to www.sec.gov.
     o    By mail.  Write to Public  Reference  Section  of the  Securities  and
          Exchange Commission,  Washington, D.C. 20549-6009. The SEC will charge
          a fee for copying the documents you request.

Investment Company Act File No. 811-XXXX
<PAGE>
AMERICAN CENTURY TARGET MATURITIES TRUST

1933 Act Post-Effective Amendment No. 29
1940 Act Amendment No. 31
- --------------------------------------------------------------------------------

PART C    OTHER INFORMATION

ITEM 23   EXHIBITS (all  exhibits  not filed  herewith  are  being  incorporated
          herein by reference).

          (a)  (1) Agreement and  Declaration of Trust dated May 31, 1995 (filed
               electronically as Exhibit 1(b) to Post-Effective Amendment No. 24
               to the  Registration  Statement on November  29,  1995,  File No.
               2-94608).

               (2) Amendment to the  Declaration of Trust dated October 21, 1996
               (filed  electronically as Exhibit 1 to  Post-Effective  Amendment
               No. 27 to the Registration Statement on August 28, 1997, File No.
               2-94608).

               (3)  Amendment to the  Declaration  of Trust dated August 1, 1997
               (filed  electronically as Exhibit 1 to  Post-Effective  Amendment
               No. 27 to the Registration Statement on August 28, 1997, File No.
               2-94608).

          (b)  Amended  and   Restated   Bylaws,   dated  May  17,  1995  (filed
               electronically as Exhibit 2 to Post-Effective Amendment No. 24 to
               the  Registration  Statement  on  November  29,  1995,  File  No.
               2-94608).

          (c)  Not applicable.

          (d)  (1)  Investor  Class  Investment   Management  Agreement  between
               American  Century Target  Maturities  Trust and American  Century
               Investment   Management,   Inc.,  dated  August  1,  1997  (filed
               electronically as Exhibit 5 of Post-Effective Amendment No. 33 to
               the Registration  Statement of American Century Government Income
               Trust on July 31, 1997, File No. 2-99222).

               (2)  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   (filed   electronically   as   Exhibit  5  of
               Post-Effective  Amendment No. 27 to the Registration Statement on
               August 28, 1997, File No. 2-94608).

          (e)  (1)  Distribution   Agreement  between  American  Century  Target
               Maturities Trust and Funds  Distributor,  Inc., dated January 15,
               1998  (filed  electronically  as  an  Exhibit  to  Post-Effective
               Amendment  No. 30 to the  Registration  Statement  on January 30,
               1998, File No. 2-94608).

               (2)  Amendment  No.  1  to  the  Distribution  Agreement  between
               American Century Target  Maturities Trust and Funds  Distributor,
               Inc., dated June 1, 1998 (filed  electronically  as an Exhibit to
               Post-Effective  Amendment No. 11 to the Registration Statement of
               American Century Capital Portfolios, Inc., File No. 33-64872).

          (f)  Not applicable.

          (g)  Custodian   Agreement   between  American   Century   Investments
               (including  American Century Target  Maturities  Trust),  and The
               Chase Manhattan Bank, dated August 9, 1996 (filed  electronically
               as  Exhibit  8  of   Post-Effective   Amendment  No.  31  to  the
               Registration  Statement  of American  Century  Government  Income
               Trust on February 7, 1997, File No. 2-99222).

          (h)  Transfer  Agency   Agreement   between  American  Century  Target
               Maturities Trust and American Century Services Corporation, dated
               August   1,  1997   (filed   electronically   as   Exhibit  9  of
               Post-Effective  Amendment No. 33 to the Registration Statement of
               American Century  Government  Income Trust on July 31, 1997, File
               No. 2-99222).

          (i)  Opinion and consent of counsel is included herein.

          (j)  (1) Consent of PricewaterhouseCoopers, LLP, independent auditors,
               to be filed by amendment.

               (2) Consent of KPMG Peat Marwick,  LLP, independent  auditors, to
               be filed by amendment.

               (3) Power of Attorney dated July 9, 1998 is included herein.

          (k)  Not applicable.

          (l)  Not applicable.

          (m)  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  (filed  electronically  as  Exhibit  15  to  Post-Effective
               Amendment No. 27 to the  Registration  Statement  filed on August
               28, 1997, filed No. 2-94608).

          (n)  (1) Financial Data Schedule for American  Century - Benham Target
               Maturities Trust: 2000 is included herein.

               (2) Financial Data Schedule for American  Century - Benham Target
               Maturities Trust: 2005 is included herein.

               (3) Financial Data Schedule for American  Century - Benham Target
               Maturities Trust: 2010 is included herein.

               (4) Financial Data Schedule for American  Century - Benham Target
               Maturities Trust: 2015 is included herein.

               (5) Financial Data Schedule for American  Century - Benham Target
               Maturities Trust: 2020 is included herein.

               (6) Financial Data Schedule for American  Century - Benham Target
               Maturities Trust: 2025 is included herein.

          (o)  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  (filed  electronically  as
               Exhibit 18 of Post-Effective Amendment No. 27 to the Registration
               Statement on August 28, 1997, File No. 2-94608).


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

Not applicable.


Item 25. 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  (filed
electronically  as  Exhibit  2(b)  of  Post-Effective  Amendment  No.  24 to the
Registration Statement on November 29, 1995, File No. 2-94608).


Item 26. Business and Other Connections of Investment Advisor.

American Century Investment Management, Inc., the investment advisor, is engaged
in the business of managing  investments  for registered  investment  companies,
deferred compensation plans and other institutional investors.


Item 27. Principal Underwriters.

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

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

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

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

<TABLE>
Name and Principal Business          Positions and Offices with          Positions and Offices with
Address*                             Underwriter                         Registrant
<S>                                  <C>                                <C>
Marie E. Connolly                    Director, President and Chief       None
                                     Executive Officer

George A. Rio                        Executive Vice President            President, Principal Executive
                                                                         and Principal Financial Officer

Donald R. Roberson                   Executive Vice President            None

William S. Nichols                   Executive Vice President            None

Margaret W. Chambers                 Senior Vice President, General      None
                                     Counsel, Chief Compliance
                                     Officer, Secretary and Clerk
Michael S. Petrucelli                Senior Vice President               None

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

Paula R. David                       Senior Vice President               None

Allen B. Closser                     Senior Vice President               None

Bernard A. Whalen                    Senior Vice President               None

William J. Nutt                      Chairman and Director               None
- --------------------
* All addresses are 60 State Street, Suite 1300, Boston, Massachusetts 02109
</TABLE>
         (c)  Not applicable.


Item 28. Location of Accounts and Records.

All  accounts,  books and other  documents  required to be maintained by Section
31(a)  of the  1940  Act,  and  the  rules  promulgated  thereunder,  are in the
possession of Registrant,  American  Century  Services  Corporation and American
Century  Investment  Management,  Inc., all located at 4500 Main Street,  Kansas
City, Missouri 64111.


Item 29. Management Services.

Not applicable.


Item 30. Undertakings.

Not applicable.
<PAGE>
                                   SIGNATURES

Pursuant to the  requirements  of the  Securities Act of 1933 and the Investment
Company  Act of 1940,  the  Registrant  certifies  that it has duly  caused this
Post-Effective  Amendment No.  29/Amendment No. 31 to be signed on its behalf by
the  undersigned,  thereunto  duly  authorized,  in the City of Kansas City, and
State of Missouri, on the 13th day of November, 1998.

                              AMERICAN CENTURY TARGET MATURITIES TRUST


                              By: /s/Patrick A. Looby
                                  Patrick A. Looby
                                  Vice President

Pursuant to the requirements of the Securities Act of 1933, this  Post-Effective
Amendment No. 29/Amendment No. 31 has been signed below by the following persons
in the capacities and on the dates indicated.
<TABLE>
                                                                            Date
<S>                                  <C>                                    <C>
*                                    President, Principal Executive and     November 13, 1998
- ---------------------------------    Principal Financial Officer
George A. Rio

*                                    Vice President and Treasurer           November 13, 1998
- ---------------------------------
Maryanne Roepke

*                                    Chairman of the Board and Trustee      November 13, 1998
- ---------------------------------    
James E. Stowers III

*                                    Trustee                                November 13, 1998
- ---------------------------------    
William M. Lyons

*                                    Trustee                                November 13, 1998
- ---------------------------------
Albert A. Eisenstat

*                                    Trustee                                November 13, 1998
- ---------------------------------
Ronald J. Gilson

*                                    Trustee                                November 13, 1998
- ---------------------------------
Myron S. Scholes

*                                    Trustee                                November 13, 1998
- ---------------------------------
Kenneth E. Scott

*                                    Trustee                                November 13, 1998
- ---------------------------------
Isaac Stein

*                                    Trustee                                November 13, 1998
- ---------------------------------
Jeanne D. Wohlers
</TABLE>

/s/Patrick A. Looby
*by Patrick A. Looby,  Attorney in Fact  (pursuant to a Power of Attorney  dated
July 9, 1998).


EXHIBIT     DESCRIPTION

EX-99.a1    Agreement  and  Declaration  of Trust dated May 31, 1995 (filed as a
            part  of  Post-Effective   Amendment  No.  24  to  the  Registration
            Statement on Form N-1A of the Registrant, File No. 2-94608, filed on
            November 29, 1995 and incorporated herein by reference).

EX-99.a2    Amendment to the  Declaration of Trust dated October 21, 1996 (filed
            as a part of  Post-Effective  Amendment  No. 27 to the  Registration
            Statement on Form N-1A of the Registrant, File No. 2-94608, filed on
            August 28, 1997 and incorporated herein by reference).

EX-99.a3    Amendment to the Declaration of Trust dated August 1, 1997 (filed as
            a part  of  Post-Effective  Amendment  No.  27 to  the  Registration
            Statement on Form N-1A of the Registrant, File No. 2-94608, filed on
            August 28, 1997 and incorporated herein by reference).

EX-99.b     Amended and Restated Bylaws,  dated May 17, 1995 (filed as a part of
            Post-Effective  Amendment  No. 24 to the  Registration  Statement on
            Form N-1A of the Registrant, File No. 2-94608, filed on November 29,
            1995 and incorporated herein by reference).

EX-99.d1    Investor Class  Investment  Management  Agreement  between  American
            Century  Target  Maturities  Trust and American  Century  Investment
            Management,  Inc.,  dated  August  1,  1997  (filed  as  a  part  of
            Post-Effective  Amendment  No. 33 to the  Registration  Statement on
            Form N-1A of American  Century  Government  Income  Trust,  File No.
            2-99222, filed July 31, 1997 and incorporated herein by reference).

EX-99.d2    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 (filed as a
            part  of  Post-Effective   Amendment  No.  27  to  the  Registration
            Statement on Form N-1A of the Registrant, File No. 2-94608, filed on
            August 28, 1997 and incorporated herein by reference).

EX-99.e1    Distribution  Agreement  between American Century Target  Maturities
            Trust and Funds Distributor,  Inc., dated January 15, 1998 (filed as
            a part  of  Post-Effective  Amendment  No.  28 to  the  Registration
            Statement on Form N-1A of the Registrant, File No. 2-94608, filed on
            January 30, 1998 and incorporated herein by reference).

EX-99.e2    Amendment  No.  1 to the  Distribution  Agreement  between  American
            Century Target Maturities Trust and Funds  Distributor,  Inc., dated
            June 1, 1998 (filed as a part of Post-Effective  Amendment No. 11 to
            the Registration  Statement on Form N-1A of American Century Capital
            Portfolios,  Inc.,  File No.  33-64872,  filed on June 26,  1998 and
            incorporated herein by reference).
  
EX-99.g     Custodian Agreement between American Century Investments  (including
            American Century Target Maturities  Trust),  and The Chase Manhattan
            Bank,  dated  August  9,  1996  (filed  as a part of  Post-Effective
            Amendment  No.  31 to the  Registration  Statement  on Form  N-1A of
            American Century  Government Income Trust,  File No. 2-99222,  filed
            February 7, 1997 and incorporated herein by reference).

EX-99.h     Transfer Agency Agreement between American Century Target Maturities
            Trust and American  Century  Services  Corporation,  dated August 1,
            1997  (filed  as a part of  Post-Effective  Amendment  No. 33 to the
            Registration  Statement on Form N-1A of American Century  Government
            Income  Trust,  File  No.  2-99222,  filed  on  July  31,  1997  and
            incorporated herein by reference).

EX-99.i     Opinion and consent of counsel.

EX-99.j1    Consent of PricewaterhouseCoopers,  LLP, independent auditors, to be
            filed by amendment.

EX-99.j2    Consent of KPMG Peat Marwick, LLP, independent auditors, to be filed
            by amendment.

EX-99.j3    Power of Attorney dated July 9, 1998.

EX-99.m     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
            (filed  as  a  part  of  Post-Effective  Amendment  No.  27  to  the
            Registration  Statement  on Form  N-1A of the  Registrant,  File No.
            2-94608,  filed on  August  28,  1997  and  incorporated  herein  by
            reference).

EX-99.o     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  (filed  as a part of  Post-Effective  Amendment  No. 27 of the
            Registration  Statement  on Form  N-1A of the  Registrant,  File No.
            2-94608,  filed on  August  28,  1997  and  incorporated  herein  by
            reference).

EX-27.5.1   Financial  Data  Schedule  for  American  Century  -  Benham  Target
            Maturities Trust: 2000

EX-27.5.2   Financial  Data  Schedule  for  American  Century  -  Benham  Target
            Maturities Trust: 2005 

EX-27.5.3   Financial  Data  Schedule  for  American  Century  -  Benham  Target
            Maturities Trust: 2010 

EX-27.5.4   Financial  Data  Schedule  for  American  Century  -  Benham  Target
            Maturities Trust: 2015 

EX-27.5.5   Financial  Data  Schedule  for  American  Century  -  Benham  Target
            Maturities Trust: 2020 

EX-27.5.6   Financial  Data  Schedule  for  American  Century  -  Benham  Target
            Maturities Trust: 2025 

                               CHARLES C.S. PARK
                                ATTORNEY AT LAW

                              1665 CHARLESTON ROAD
                        MOUNTAIN VIEW, CALIFORNIA 94043

                            TELEPHONE (650)965-8300
                            TELECOPIER (650)964-9591

November 13, 1998

American Century Target Maturities Trust
American Century Tower
4500 Main Street
Kansas City, Missouri 64111

Ladies and Gentlemen:

     As counsel to American Century Target Maturities Trust (the "Trust"),  I am
generally familiar with its affairs.  Based upon this familiarity,  and upon the
examination  of such documents as I deemed  relevant,  it is my opinion that the
shares of the Trust  described in 1933 Act  Post-Effective  Amendment No. 29 and
1940 Act  Amendment  No. 31 to its  Registration  Statement on Form N-1A,  to be
filed with the  Securities and Exchange  Commission on November 13, 1998,  will,
when issued, be validly issued, fully paid and nonassessable.

     For the  record,  it should be stated  that I am an  employee  of  American
Century  Services  Corporation,  an affiliated  corporation of American  Century
Investment Management, Inc., the investment advisor of the Corporation.

     I hereby consent to the use of this opinion as an exhibit to Post-Effective
Amendment No. 29 and Amendment No. 31, referenced above.

                                 Very truly yours,

                                 /s/Charles C.S. Park
                                 Charles C.S. Park

                                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  George A. Rio,
Douglas A. Paul,  Patrick A. Looby,  Charles A.  Etherington,  and Charles  C.S.
Park, 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;  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 9th day of July, 1998.

                        AMERICAN CENTURY TARGET MATURITIES TRUST


                        By: /s/  George A. Rio
                        George A. Rio, President


                               SIGNATURE AND TITLE


/s/  George A. Rio                                        /s/  Ronald J. Gilson
George A. Rio                                             Ronald J. Gilson
President, Principal Executive and                        Director
Principal Financial Officer

/s/  Maryanne Roepke                                      /s/  Myron S. Scholes
Maryanne Roepke                                           Myron S. Scholes
Vice President and Treasurer                              Director

/s/  James E. Stowers, III                                /s/  Kenneth E. Scott
James E. Stowers, III                                     Kenneth E. Scott
Director                                                  Director

/s/  William M. Lyons                                     /s/  Isaac Stein
William M. Lyons                                          Isaac Stein
Director                                                  Director

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


Attest:

By: /s/  Douglas A. Paul
    Douglas A. Paul, Secretary

<TABLE> <S> <C>

<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL  INFORMATION  EXTRACTED FROM THE ANNUAL
REPORT OF AMERICAN  CENTURY  TARGET  MATURITIES  TRUST AND IS  QUALIFIED  IN ITS
ENTIRETY BY REFERENCE TO SUCH  REPORT.  INFORMATION  PRESENTED IS A TOTAL OF ALL
CLASSES, EXCEPT WHERE SUCH PRESENTATION IS NOT POSSIBLE(SUCH AS PER SHARE DATA).
IN THOSE CASES, ONLY THE INVESTOR CLASS INFORMATION IS PRESENTED.
</LEGEND>
<CIK> 0000757928
<NAME> AMERICAN CENTURY TARGET MATURITIES TRUST
<SERIES>
   <NUMBER> 2
   <NAME> BENHAM TARGET MATURITIES - 2000 PORTFOLIO
       
<S>                      <C>
<PERIOD-TYPE>                                 YEAR
<FISCAL-YEAR-END>                             SEP-30-1998
<PERIOD-END>                                  SEP-30-1998              <F1>
<INVESTMENTS-AT-COST>                                     230,516,406
<INVESTMENTS-AT-VALUE>                                    238,739,903
<RECEIVABLES>                                                       0
<ASSETS-OTHER>                                                584,484
<OTHER-ITEMS-ASSETS>                                                0
<TOTAL-ASSETS>                                            239,324,387
<PAYABLE-FOR-SECURITIES>                                            0
<SENIOR-LONG-TERM-DEBT>                                             0
<OTHER-ITEMS-LIABILITIES>                                   1,735,889
<TOTAL-LIABILITIES>                                         1,735,889
<SENIOR-EQUITY>                                                     0
<PAID-IN-CAPITAL-COMMON>                                  216,542,478
<SHARES-COMMON-STOCK>                                       2,533,390
<SHARES-COMMON-PRIOR>                                       3,349,052
<ACCUMULATED-NII-CURRENT>                                  10,075,324
<OVERDISTRIBUTION-NII>                                              0
<ACCUMULATED-NET-GAINS>                                     2,747,199
<OVERDISTRIBUTION-GAINS>                                            0
<ACCUM-APPREC-OR-DEPREC>                                    8,223,497
<NET-ASSETS>                                              237,588,498
<DIVIDEND-INCOME>                                                   0
<INTEREST-INCOME>                                          15,205,216
<OTHER-INCOME>                                                      0
<EXPENSES-NET>                                              1,420,550
<NET-INVESTMENT-INCOME>                                    13,784,666
<REALIZED-GAINS-CURRENT>                                    6,149,330
<APPREC-INCREASE-CURRENT>                                     679,135
<NET-CHANGE-FROM-OPS>                                      20,613,131
<EQUALIZATION>                                                      0
<DISTRIBUTIONS-OF-INCOME>                                  15,765,056
<DISTRIBUTIONS-OF-GAINS>                                            0
<DISTRIBUTIONS-OTHER>                                               0
<NUMBER-OF-SHARES-SOLD>                                       645,063
<NUMBER-OF-SHARES-REDEEMED>                                 1,189,038
<SHARES-REINVESTED>                                           191,104
<NET-CHANGE-IN-ASSETS>                                   (10,788,636)
<ACCUMULATED-NII-PRIOR>                                             0
<ACCUMULATED-GAINS-PRIOR>                                 (4,592,691)
<OVERDISTRIB-NII-PRIOR>                                             0
<OVERDIST-NET-GAINS-PRIOR>                                          0
<GROSS-ADVISORY-FEES>                                       1,410,866
<INTEREST-EXPENSE>                                                  0
<GROSS-EXPENSE>                                             1,420,550
<AVERAGE-NET-ASSETS>                                      239,827,115
<PER-SHARE-NAV-BEGIN>                                           86.05  <F2>
<PER-SHARE-NII>                                                  5.13  <F2>
<PER-SHARE-GAIN-APPREC>                                          2.60  <F2>
<PER-SHARE-DIVIDEND>                                             5.64  <F2>
<PER-SHARE-DISTRIBUTIONS>                                        0.00
<RETURNS-OF-CAPITAL>                                             0.00
<PER-SHARE-NAV-END>                                             93.78  <F2>
<EXPENSE-RATIO>                                                  0.59  <F2>
<AVG-DEBT-OUTSTANDING>                                              0
<AVG-DEBT-PER-SHARE>                                             0.00
        
<FN>
<F1> SCHEDULE REFLECTS THE TOTAL FOR ALL CLASSES, EXCEPT WHERE INDICATED.
<F2> INVESTOR CLASS INFORMATION ONLY.
</FN>

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL  INFORMATION  EXTRACTED FROM THE ANNUAL
REPORT OF AMERICAN  CENTURY  TARGET  MATURITIES  TRUST AND IS  QUALIFIED  IN ITS
ENTIRETY BY REFERENCE TO SUCH  REPORT.  INFORMATION  PRESENTED IS A TOTAL OF ALL
CLASSES, EXCEPT WHERE SUCH PRESENTATION IS NOT POSSIBLE(SUCH AS PER SHARE DATA).
IN THOSE CASES, ONLY THE INVESTOR CLASS INFORMATION IS PRESENTED.
</LEGEND>
<CIK> 0000757928
<NAME> AMERICAN CENTURY TARGET MATURITIES TRUST
<SERIES>
   <NUMBER> 3
   <NAME> BENHAM TARGET MATURITIES - 2005 PORTFOLIO
       
<S>                      <C>
<PERIOD-TYPE>                                  YEAR
<FISCAL-YEAR-END>                              SEP-30-1998
<PERIOD-END>                                   SEP-30-1998       <F1>
<INVESTMENTS-AT-COST>                               461,237,944
<INVESTMENTS-AT-VALUE>                              522,621,174
<RECEIVABLES>                                                 0
<ASSETS-OTHER>                                       12,567,939
<OTHER-ITEMS-ASSETS>                                          0
<TOTAL-ASSETS>                                      535,189,113
<PAYABLE-FOR-SECURITIES>                                      0
<SENIOR-LONG-TERM-DEBT>                                       0
<OTHER-ITEMS-LIABILITIES>                             1,103,003
<TOTAL-LIABILITIES>                                   1,103,003
<SENIOR-EQUITY>                                               0
<PAID-IN-CAPITAL-COMMON>                            534,086,110
<SHARES-COMMON-STOCK>                                 6,961,639
<SHARES-COMMON-PRIOR>                                 4,130,406
<ACCUMULATED-NII-CURRENT>                            16,898,403
<OVERDISTRIBUTION-NII>                                        0
<ACCUMULATED-NET-GAINS>                               5,127,099
<OVERDISTRIBUTION-GAINS>                                      0
<ACCUM-APPREC-OR-DEPREC>                             61,383,230
<NET-ASSETS>                                        534,086,110
<DIVIDEND-INCOME>                                             0
<INTEREST-INCOME>                                    23,436,080
<OTHER-INCOME>                                                0
<EXPENSES-NET>                                        2,258,272
<NET-INVESTMENT-INCOME>                              21,177,808
<REALIZED-GAINS-CURRENT>                              5,444,663
<APPREC-INCREASE-CURRENT>                            42,618,545
<NET-CHANGE-FROM-OPS>                                69,241,016
<EQUALIZATION>                                                0
<DISTRIBUTIONS-OF-INCOME>                            15,987,498
<DISTRIBUTIONS-OF-GAINS>                              1,217,264
<DISTRIBUTIONS-OTHER>                                         0
<NUMBER-OF-SHARES-SOLD>                               4,722,020
<NUMBER-OF-SHARES-REDEEMED>                           2,395,346
<SHARES-REINVESTED>                                     270,807
<NET-CHANGE-IN-ASSETS>                              252,408,969
<ACCUMULATED-NII-PRIOR>                                       0
<ACCUMULATED-GAINS-PRIOR>                             1,315,502
<OVERDISTRIB-NII-PRIOR>                                       0
<OVERDIST-NET-GAINS-PRIOR>                                    0
<GROSS-ADVISORY-FEES>                                 2,246,858
<INTEREST-EXPENSE>                                            0
<GROSS-EXPENSE>                                       2,258,272
<AVERAGE-NET-ASSETS>                                382,708,125
<PER-SHARE-NAV-BEGIN>                                     64.54  <F2>
<PER-SHARE-NII>                                            3.84  <F2>
<PER-SHARE-GAIN-APPREC>                                    8.34  <F2>
<PER-SHARE-DIVIDEND>                                       3.61  <F2>
<PER-SHARE-DISTRIBUTIONS>                                  0.27  <F2>
<RETURNS-OF-CAPITAL>                                       0.00
<PER-SHARE-NAV-END>                                       76.72  <F2>
<EXPENSE-RATIO>                                            0.59  <F2>
<AVG-DEBT-OUTSTANDING>                                        0
<AVG-DEBT-PER-SHARE>                                       0.00
        
<FN>
<F1> SCHEDULE REFLECTS THE TOTAL FOR ALL CLASSES, EXCEPT WHERE INDICATED.
<F2> INVESTOR CLASS INFORMATION ONLY.
</FN>

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL  INFORMATION  EXTRACTED FROM THE ANNUAL
REPORT OF AMERICAN  CENTURY  TARGET  MATURITIES  TRUST AND IS  QUALIFIED  IN ITS
ENTIRETY BY REFERENCE TO SUCH  REPORT.  INFORMATION  PRESENTED IS A TOTAL OF ALL
CLASSES, EXCEPT WHERE SUCH PRESENTATION IS NOT POSSIBLE(SUCH AS PER SHARE DATA).
IN THOSE CASES, ONLY THE INVESTOR CLASS INFORMATION IS PRESENTED.
</LEGEND>
<CIK> 0000757928
<NAME> AMERICAN CENTURY TARGET MATURITIES TRUST
<SERIES>
   <NUMBER> 4
   <NAME> BENHAM TARGET MATURITIES - 2010 PORTFOLIO
       
<S>                      <C>
<PERIOD-TYPE>                                   YEAR
<FISCAL-YEAR-END>                               SEP-30-1998
<PERIOD-END>                                    SEP-30-1998
<INVESTMENTS-AT-COST>                                          235,163,514
<INVESTMENTS-AT-VALUE>                                         281,100,203
<RECEIVABLES>                                                            0
<ASSETS-OTHER>                                                   5,814,617
<OTHER-ITEMS-ASSETS>                                                     0
<TOTAL-ASSETS>                                                 286,914,820
<PAYABLE-FOR-SECURITIES>                                                 0
<SENIOR-LONG-TERM-DEBT>                                                  0
<OTHER-ITEMS-LIABILITIES>                                        3,086,476
<TOTAL-LIABILITIES>                                              3,086,476
<SENIOR-EQUITY>                                                          0
<PAID-IN-CAPITAL-COMMON>                                       227,800,198
<SHARES-COMMON-STOCK>                                            4,579,373
<SHARES-COMMON-PRIOR>                                            2,616,128
<ACCUMULATED-NII-CURRENT>                                        8,023,524
<OVERDISTRIBUTION-NII>                                                   0
<ACCUMULATED-NET-GAINS>                                          2,067,933
<OVERDISTRIBUTION-GAINS>                                                 0
<ACCUM-APPREC-OR-DEPREC>                                        45,936,689
<NET-ASSETS>                                                   283,828,344
<DIVIDEND-INCOME>                                                        0
<INTEREST-INCOME>                                               11,127,377
<OTHER-INCOME>                                                           0
<EXPENSES-NET>                                                   1,101,180
<NET-INVESTMENT-INCOME>                                         10,026,197
<REALIZED-GAINS-CURRENT>                                         2,154,470
<APPREC-INCREASE-CURRENT>                                       34,621,133
<NET-CHANGE-FROM-OPS>                                           46,801,800
<EQUALIZATION>                                                           0
<DISTRIBUTIONS-OF-INCOME>                                        7,102,391
<DISTRIBUTIONS-OF-GAINS>                                           850,424
<DISTRIBUTIONS-OTHER>                                                    0
<NUMBER-OF-SHARES-SOLD>                                          4,025,597
<NUMBER-OF-SHARES-REDEEMED>                                      2,145,135
<SHARES-REINVESTED>                                                159,789
<NET-CHANGE-IN-ASSETS>                                         159,016,515
<ACCUMULATED-NII-PRIOR>                                          5,195,418
<ACCUMULATED-GAINS-PRIOR>                                        2,583,986
<OVERDISTRIB-NII-PRIOR>                                                  0
<OVERDIST-NET-GAINS-PRIOR>                                               0
<GROSS-ADVISORY-FEES>                                            1,092,458
<INTEREST-EXPENSE>                                                       0
<GROSS-EXPENSE>                                                  1,101,180
<AVERAGE-NET-ASSETS>                                           186,094,779
<PER-SHARE-NAV-BEGIN>                                                49.16
<PER-SHARE-NII>                                                       2.94
<PER-SHARE-GAIN-APPREC>                                               9.88
<PER-SHARE-DIVIDEND>                                                  2.46
<PER-SHARE-DISTRIBUTIONS>                                             0.29
<RETURNS-OF-CAPITAL>                                                  0.00
<PER-SHARE-NAV-END>                                                  61.98
<EXPENSE-RATIO>                                                       0.59
<AVG-DEBT-OUTSTANDING>                                                   0
<AVG-DEBT-PER-SHARE>                                                  0.00
        
<FN>
<F1> SCHEDULE REFLECTS THE TOTAL FOR ALL CLASSES, EXCEPT WHERE INDICATED.
<F2> INVESTOR CLASS INFORMATION ONLY.
</FN>

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL  INFORMATION  EXTRACTED FROM THE ANNUAL
REPORT OF AMERICAN  CENTURY  TARGET  MATURITIES  TRUST AND IS  QUALIFIED  IN ITS
ENTIRETY BY REFERENCE TO SUCH  REPORT.  INFORMATION  PRESENTED IS A TOTAL OF ALL
CLASSES, EXCEPT WHERE SUCH PRESENTATION IS NOT POSSIBLE(SUCH AS PER SHARE DATA).
IN THOSE CASES, ONLY THE INVESTOR CLASS INFORMATION IS PRESENTED.
</LEGEND>
<CIK> 0000757928
<NAME> AMERICAN CENTURY TARGET MATURITIES TRUST
<SERIES>
   <NUMBER> 5
   <NAME> BENHAM TARGET MATURITIES - 2015 PORTFOLIO
       
<S>                      <C>
<PERIOD-TYPE>                               YEAR
<FISCAL-YEAR-END>                           SEP-30-1998
<PERIOD-END>                                SEP-30-1998
<INVESTMENTS-AT-COST>                                   109,651,361
<INVESTMENTS-AT-VALUE>                                  169,450,389
<RECEIVABLES>                                                     0
<ASSETS-OTHER>                                            1,312,614
<OTHER-ITEMS-ASSETS>                                              0
<TOTAL-ASSETS>                                          170,763,003
<PAYABLE-FOR-SECURITIES>                                          0
<SENIOR-LONG-TERM-DEBT>                                           0
<OTHER-ITEMS-LIABILITIES>                                   681,756
<TOTAL-LIABILITIES>                                         681,756
<SENIOR-EQUITY>                                                   0
<PAID-IN-CAPITAL-COMMON>                                104,510,486
<SHARES-COMMON-STOCK>                                     3,410,207
<SHARES-COMMON-PRIOR>                                     3,618,424
<ACCUMULATED-NII-CURRENT>                                 5,500,951
<OVERDISTRIBUTION-NII>                                            0
<ACCUMULATED-NET-GAINS>                                     270,782
<OVERDISTRIBUTION-GAINS>                                          0
<ACCUM-APPREC-OR-DEPREC>                                 59,799,028
<NET-ASSETS>                                            170,081,247
<DIVIDEND-INCOME>                                                 0
<INTEREST-INCOME>                                         7,985,961
<OTHER-INCOME>                                                    0
<EXPENSES-NET>                                              853,280
<NET-INVESTMENT-INCOME>                                   7,132,681
<REALIZED-GAINS-CURRENT>                                    298,681
<APPREC-INCREASE-CURRENT>                                29,541,335
<NET-CHANGE-FROM-OPS>                                    36,972,697
<EQUALIZATION>                                                    0
<DISTRIBUTIONS-OF-INCOME>                                 6,501,208
<DISTRIBUTIONS-OF-GAINS>                                  4,326,524
<DISTRIBUTIONS-OTHER>                                             0
<NUMBER-OF-SHARES-SOLD>                                   2,651,059
<NUMBER-OF-SHARES-REDEEMED>                               2,519,163
<SHARES-REINVESTED>                                         281,652
<NET-CHANGE-IN-ASSETS>                                   55,181,678
<ACCUMULATED-NII-PRIOR>                                   5,247,463
<ACCUMULATED-GAINS-PRIOR>                                   642,639
<OVERDISTRIB-NII-PRIOR>                                           0
<OVERDIST-NET-GAINS-PRIOR>                                        0
<GROSS-ADVISORY-FEES>                                       845,121
<INTEREST-EXPENSE>                                                0
<GROSS-EXPENSE>                                             853,280
<AVERAGE-NET-ASSETS>                                    143,892,968
<PER-SHARE-NAV-BEGIN>                                         38.34
<PER-SHARE-NII>                                                2.17
<PER-SHARE-GAIN-APPREC>                                        9.36
<PER-SHARE-DIVIDEND>                                           2.11
<PER-SHARE-DISTRIBUTIONS>                                      1.40
<RETURNS-OF-CAPITAL>                                           0.00
<PER-SHARE-NAV-END>                                           49.87
<EXPENSE-RATIO>                                                0.59
<AVG-DEBT-OUTSTANDING>                                            0
<AVG-DEBT-PER-SHARE>                                           0.00
        
<FN>
<F1> SCHEDULE REFLECTS THE TOTAL FOR ALL CLASSES, EXCEPT WHERE INDICATED.
<F2> INVESTOR CLASS INFORMATION ONLY.
</FN>

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL  INFORMATION  EXTRACTED FROM THE ANNUAL
REPORT OF AMERICAN  CENTURY  TARGET  MATURITIES  TRUST AND IS  QUALIFIED  IN ITS
ENTIRETY BY REFERENCE TO SUCH  REPORT.  INFORMATION  PRESENTED IS A TOTAL OF ALL
CLASSES, EXCEPT WHERE SUCH PRESENTATION IS NOT POSSIBLE(SUCH AS PER SHARE DATA).
IN THOSE CASES, ONLY THE INVESTOR CLASS INFORMATION IS PRESENTED.
</LEGEND>
<CIK> 0000757928
<NAME> AMERICAN CENTURY TARGET MATURITIES TRUST
<SERIES>
   <NUMBER> 6
   <NAME> BENHAM TARGET MATURITIES - 2020 PORTFOLIO
       
<S>                      <C>
<PERIOD-TYPE>                                  YEAR
<FISCAL-YEAR-END>                              SEP-30-1998
<PERIOD-END>                                   SEP-30-1998
<INVESTMENTS-AT-COST>                                      301,124,307
<INVESTMENTS-AT-VALUE>                                     487,013,557
<RECEIVABLES>                                                        0
<ASSETS-OTHER>                                               2,351,356
<OTHER-ITEMS-ASSETS>                                                 0
<TOTAL-ASSETS>                                             489,364,923
<PAYABLE-FOR-SECURITIES>                                             0
<SENIOR-LONG-TERM-DEBT>                                              0
<OTHER-ITEMS-LIABILITIES>                                    3,313,152
<TOTAL-LIABILITIES>                                          3,313,152
<SENIOR-EQUITY>                                                      0
<PAID-IN-CAPITAL-COMMON>                                   228,403,297
<SHARES-COMMON-STOCK>                                       13,152,689
<SHARES-COMMON-PRIOR>                                       42,102,669
<ACCUMULATED-NII-CURRENT>                                   19,544,059
<OVERDISTRIBUTION-NII>                                               0
<ACCUMULATED-NET-GAINS>                                     52,215,155
<OVERDISTRIBUTION-GAINS>                                             0
<ACCUM-APPREC-OR-DEPREC>                                   185,889,260
<NET-ASSETS>                                               486,051,771
<DIVIDEND-INCOME>                                                    0
<INTEREST-INCOME>                                           30,415,786
<OTHER-INCOME>                                                 105,570
<EXPENSES-NET>                                               3,324,484
<NET-INVESTMENT-INCOME>                                     27,196,872
<REALIZED-GAINS-CURRENT>                                    55,277,618
<APPREC-INCREASE-CURRENT>                                   86,449,383
<NET-CHANGE-FROM-OPS>                                      168,923,873
<EQUALIZATION>                                                       0
<DISTRIBUTIONS-OF-INCOME>                                   44,888,306
<DISTRIBUTIONS-OF-GAINS>                                    41,866,720
<DISTRIBUTIONS-OTHER>                                                0
<NUMBER-OF-SHARES-SOLD>                                     13,812,474
<NUMBER-OF-SHARES-REDEEMED>                                 21,343,946
<SHARES-REINVESTED>                                          3,356,693
<NET-CHANGE-IN-ASSETS>                                    (67,499,256)
<ACCUMULATED-NII-PRIOR>                                     39,687,073
<ACCUMULATED-GAINS-PRIOR>                                  (6,273,172)
<OVERDISTRIB-NII-PRIOR>                                              0
<OVERDIST-NET-GAINS-PRIOR>                                           0
<GROSS-ADVISORY-FEES>                                        3,309,715
<INTEREST-EXPENSE>                                                   0
<GROSS-EXPENSE>                                              3,324,484
<AVERAGE-NET-ASSETS>                                       563,167,475
<PER-SHARE-NAV-BEGIN>                                            27.17  <F2>
<PER-SHARE-NII>                                                   1.53  <F2>
<PER-SHARE-GAIN-APPREC>                                           8.25  <F2>
<PER-SHARE-DIVIDEND>                                              2.35  <F2>
<PER-SHARE-DISTRIBUTIONS>                                         2.19  <F2>
<RETURNS-OF-CAPITAL>                                              0.00
<PER-SHARE-NAV-END>                                              36.95  <F2>
<EXPENSE-RATIO>                                                   0.59  <F2>
<AVG-DEBT-OUTSTANDING>                                               0
<AVG-DEBT-PER-SHARE>                                              0.00
        
<FN>
<F1> SCHEDULE REFLECTS THE TOTAL FOR ALL CLASSES, EXCEPT WHERE INDICATED.
<F2> INVESTOR CLASS INFORMATION ONLY.
</FN>

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL  INFORMATION  EXTRACTED FROM THE ANNUAL
REPORT OF AMERICAN  CENTURY  TARGET  MATURITIES  TRUST AND IS  QUALIFIED  IN ITS
ENTIRETY BY REFERENCE TO SUCH  REPORT.  INFORMATION  PRESENTED IS A TOTAL OF ALL
CLASSES, EXCEPT WHERE SUCH PRESENTATION IS NOT POSSIBLE(SUCH AS PER SHARE DATA).
IN THOSE CASES, ONLY THE INVESTOR CLASS INFORMATION IS PRESENTED.
</LEGEND>
<CIK> 0000757928
<NAME> AMERICAN CENTURY TARGET MATURITIES TRUST
<SERIES>
   <NUMBER> 7
   <NAME> BENHAM TARGET MATURITIES - 2025 PORTFOLIO
       
<S>                      <C>
<PERIOD-TYPE>                           YEAR
<FISCAL-YEAR-END>                       SEP-30-1998
<PERIOD-END>                            SEP-30-1998
<INVESTMENTS-AT-COST>                                   284,665,108
<INVESTMENTS-AT-VALUE>                                  354,568,140
<RECEIVABLES>                                                14,607
<ASSETS-OTHER>                                            4,512,005
<OTHER-ITEMS-ASSETS>                                              0
<TOTAL-ASSETS>                                          359,094,752
<PAYABLE-FOR-SECURITIES>                                          0
<SENIOR-LONG-TERM-DEBT>                                           0
<OTHER-ITEMS-LIABILITIES>                                 2,883,204
<TOTAL-LIABILITIES>                                       2,883,204
<SENIOR-EQUITY>                                                   0
<PAID-IN-CAPITAL-COMMON>                                276,368,990
<SHARES-COMMON-STOCK>                                    11,248,635
<SHARES-COMMON-PRIOR>                                     1,991,656
<ACCUMULATED-NII-CURRENT>                                 8,762,384
<OVERDISTRIBUTION-NII>                                            0
<ACCUMULATED-NET-GAINS>                                   1,177,142
<OVERDISTRIBUTION-GAINS>                                          0
<ACCUM-APPREC-OR-DEPREC>                                 69,903,032
<NET-ASSETS>                                            356,211,548
<DIVIDEND-INCOME>                                                 0
<INTEREST-INCOME>                                        11,622,041
<OTHER-INCOME>                                               66,911
<EXPENSES-NET>                                            1,249,537
<NET-INVESTMENT-INCOME>                                  10,439,415
<REALIZED-GAINS-CURRENT>                                  1,681,458
<APPREC-INCREASE-CURRENT>                                60,753,235
<NET-CHANGE-FROM-OPS>                                    72,874,108
<EQUALIZATION>                                                    0
<DISTRIBUTIONS-OF-INCOME>                                 4,549,154
<DISTRIBUTIONS-OF-GAINS>                                    305,669
<DISTRIBUTIONS-OTHER>                                             0
<NUMBER-OF-SHARES-SOLD>                                  24,090,981
<NUMBER-OF-SHARES-REDEEMED>                              16,359,125
<SHARES-REINVESTED>                                         199,765
<NET-CHANGE-IN-ASSETS>                                  282,390,233
<ACCUMULATED-NII-PRIOR>                                     997,384
<ACCUMULATED-GAINS-PRIOR>                                 (501,349)
<OVERDISTRIB-NII-PRIOR>                                           0
<OVERDIST-NET-GAINS-PRIOR>                                        0
<GROSS-ADVISORY-FEES>                                     1,240,147
<INTEREST-EXPENSE>                                                0
<GROSS-EXPENSE>                                           1,249,537
<AVERAGE-NET-ASSETS>                                    211,310,907
<PER-SHARE-NAV-BEGIN>                                         22.27  <F2>
<PER-SHARE-NII>                                                1.33  <F2>
<PER-SHARE-GAIN-APPREC>                                        8.07  <F2>
<PER-SHARE-DIVIDEND>                                           0.70  <F2>
<PER-SHARE-DISTRIBUTIONS>                                      0.05  <F2>
<RETURNS-OF-CAPITAL>                                           0.00
<PER-SHARE-NAV-END>                                           31.67  <F2>
<EXPENSE-RATIO>                                                0.59  <F2>
<AVG-DEBT-OUTSTANDING>                                            0
<AVG-DEBT-PER-SHARE>                                           0.00
        
<FN>
<F1> SCHEDULE REFLECTS THE TOTAL FOR ALL CLASSES, EXCEPT WHERE INDICATED.
<F2> INVESTOR CLASS INFORMATION ONLY.
</FN>

</TABLE>


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