CASH ACCOUNT TRUST
Supplement to the Statement of Additional Information of Money
Market Portfolio (Retail Shares, Premier Shares and
Institutional Shares) and the combined Statement of Additional
Information of Money Market Portfolio (Service Shares),
Government Securities Portfolio and Tax Exempt Portfolio each
dated September 1, 1999 as revised October 6, 1999
The following sentence replaces the second sentence in the first paragraph under
"Dividends, Net Asset Value and Taxes" section:
Dividends will be reinvested monthly in shares of a Portfolio at net asset value
on the last business day of the month.
November 17, 1999
November 17, 1999