Ala. Code § 40-18-26

Every resident individual, corporation, association, or agent shall make a report to the Department of Revenue of complete information covering the amount of all interest, rent, salaries, wages, premiums, annuities, compensations, remunerations, emoluments, or other fixed or determinable gains, profits and income, except interest coupons payable to bearer, of any taxpayer taxable under this chapter, of $1,500 or more in any taxable year under such regulations and in such form and manner and to such extent as may be prescribed by the Department of Revenue.