Ala. Const. art. XIV, § 269.05

In addition to any and all taxes now authorized, or that may be hereafter authorized by the Constitution and laws of Alabama, the several school districts of any in the state shall have power to levy and collect an additional special district school tax not exceeding thirty cents on each one hundred dollars worth of taxable property in such district for public school purposes in addition to that now authorized or that may hereafter be authorized for public school purposes; provided, that a school district under this section shall include incorporated cities or towns, or any school district of which an incorporated city or town is a part, or such other school districts now existing or hereafter formed as may be approved by the county board of education; provided, further, that the rate of such tax, the time it is to continue and the purpose thereof shall have been first submitted to the vote of the qualified electors of the district, and voted for a majority of those voting at such election.