Ala. Code § 2-1-6

In the event of improper or illegal collection of any license or permit fee, or any other sum made in an effort to enforce any of the provisions of this title or any other provision of this Code or other statute which the Commissioner, Department or Board of Agriculture and Industries is authorized or directed to administer or enforce, either as a result of a mistake of law or fact, upon the written application of the party in interest, the comptroller, upon requisition of the commissioner approved by the Attorney General that such sum was improperly or illegally collected and paid into the Treasury to the credit of the Agricultural Fund, shall draw his warrant in favor of the party in interest upon the Treasurer for the amount thus certified as improperly or illegally collected and paid into the Treasury to the credit of said Agricultural Fund, and the same shall be charged to and paid out of the particular fund into which it was originally paid. The application for refund provided for in this section must be filed with the Commissioner within two years from the date on which the amount was improperly or illegally collected, and no amounts shall be refunded unless the application therefor is filed within the time limit prescribed in this section.