EXHIBIT 21 SUBSIDIARIES OF THE COMPANY As of June 30, 2002 <Table> Wholly-owned by Ace Cash Express, Inc.: Check Express, Inc., a Florida corporation Q.C.& G. Financial, Inc., an Arizona corporation Public Currency, Inc., a California corporation Wholly-owned by Check Express, Inc.: Check Express Florida, Inc., a Florida corporation Check Express Finance, Inc., a Florida corporation Check-X-Change Corporation, a California corporation Check Express South Carolina, Inc., a Florida corporation Check Express USA, Inc., a Florida corporation </Table>