Exhibit 99.1 CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Quarterly Report of The Charles Schwab Corporation (the "Company") on Form 10-Q for the period ended June 30, 2002 (the "Report"), I, Charles R. Schwab, Chairman of the Board and Co-Chief Executive Officer of the Company, hereby certify, pursuant to 18 U.S.C. section 1350, as adopted pursuant to section 906 of the Sarbanes-Oxley Act of 2002, that to the best of my knowledge: (1) The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and (2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company for the periods presented therein. /s/ Charles R. Schwab Date: August 13, 2002 - ------------------------- --------------- Charles R. Schwab Chairman of the Board and Co-Chief Executive Officer