Ala. Code § 41-9-547: Tax Exempt Status.

The authority shall be tax exempt and the properties of the authority and any income therefrom, all lease agreements and all contracts made by the authority and all income therefrom, and all indentures executed with respect thereto shall be forever exempt from any and all taxation by the State of Alabama and any political subdivision thereof, including, but not limited to, income taxes, admission taxes, amusement taxes, sales and use taxes, and ad valorem taxes.