No corporation shall be an Alabama S corporation for any portion of a taxable year of the corporation during which an election under 26 U.S.C. §1362 or §1361(b)(3), whichever is applicable, is not in effect for federal income tax purposes. No corporation shall be an Alabama S corporation if it is a financial institution, as defined in Section 40-16-1.
Ala. Code § 40-18-160 (1975)