Ala. Code § 45-2-244.181

There is levied, in addition to all privilege license taxes of every kind now or hereinafter imposed by law, which shall be collected as herein provided, a privilege or license tax on each person engaging or continuing within the county in the business of leasing or renting tangible personal property, and such tax shall be in the amounts to be determined by the application of the rates against gross proceeds as follows:

At a rate up to four percent set by a resolution of the county commission of the gross proceeds derived by the lessor or renter from the lease or rental of tangible personal property, provided the privilege or license tax on each person engaging or continuing within this county in the business of leasing or renting any automotive vehicle or truck trailer, semi-trailer, or manufactured home shall be at the rate up to one and three-fourths percent of the gross proceeds derived by the lessor from the lease or rental of such automotive vehicle or truck trailer, semi-trailer, or manufactured home; provided further, that the tax levied hereby shall not apply to any leasing or rental, as lessor, by the state, or any municipality or county in the state or United States of America or any agency or unit thereof.