<PAGE>
SUPPLEMENT TO THE PROSPECTUS OF
TCW GALILEO FUNDS, INC.
Dated: March 1, 2000
The subsection "Minimums" on page 43 is amended to reduce the investment
minimums for the I Class U.S. equity and fixed income funds to read as follows:
<TABLE>
<CAPTION>
Additional
Initial Additional IRA IRA
-------- ---------- -------- ----------
<S> <C> <C> <C> <C>
All U.S. Equity and
Fixed Income Funds...................... $ 25,000 $ 5,000 $ 2,000 $ 500
International Funds..................... $250,000 $25,000 $250,000 $25,000
</TABLE>
Under the section titled "Galileo Small Cap Value Fund" on page 28 Tyler D.
Davis is deleted as a portfolio manager.
Under the subsection titled "Portfolio Managers" on page 40 Tyler D. Davis is
deleted.
November 1, 2000 EIP1000
