NOTES TO FINANCIAL STATEMENTS
FEBRUARY 28, 1998
1. ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
ORGANIZATION--American Century Investment Trust (the Trust) is registered under the Investment Company
Act of 1940 as an open-end management investment company. American Century - Benham Prime Money
Market Fund (the Fund) is the only fund issued by the Trust. The Fund seeks the highest level of current income
consistent with preservation of capital. The Fund buys high quality (first tier), U.S. dollar denominated money
market instruments and other short-term obligations of banks, governments, and corporations. On March 9,
1998, the Board of Trustees approved the merger of the Fund and American Century
- Benham Cash Reserve Fund. The following significant accounting policies, related to the Fund, are in
accordance with accounting policies generally accepted in the investment company industry.
SECURITY VALUATIONS--Securities are valued at amortized cost, which approximates current market
value. When valuations are not readily available, securities are valued at fair value as determined in accordance
with procedures adopted by the Board of Trustees.
SECURITY TRANSACTIONS--Security transactions are accounted for on the date purchased or sold. Net
realized gains and losses are determined on the identified cost basis, which is also used for federal income tax
INVESTMENT INCOME--Interest income is recorded on the accrual basis and includes accretion of discounts
and amortization of premiums. Discounts and premiums are accreted/ amortized daily on a straight-line basis.
INCOME TAX STATUS--It is the Fund's policy to distribute all taxable income and to otherwise qualify as a
regulated investment company under the provisions of the Internal Revenue Code. Accordingly, no provision has
been made for federal income taxes.
DISTRIBUTIONS--Distributions from net investment income are declared and credited daily and distributed
monthly. The Fund does not expect to realize any lon