Exhibit 99.2

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 Annual Report of Alabama National BanCorporation (“Alabama National”) on Form 10-K for the period ended December 31, 2002 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, William E. Matthews, V, Executive Vice President and Chief Financial Officer of Alabama National, 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 Alabama National.

/s/    WILLIAM E. MATTHEWS, V

William E. Matthews, V

Executive Vice President and

Chief Financial Officer

March 17, 2003