Alabama Code Title 45. Local Laws § 45-8A-23.188

In any budget year, in anticipation of the collection of the property tax for such year, whether levied or to be levied in such year, the council may by resolution authorize the borrowing of money by the issuance of negotiable notes of the city, each of which shall be designated “tax anticipation note for the year 2___.” (stating the budget year). Such notes may be issued for periods not exceeding one year and may be renewed from time to time for periods not exceeding one year, but together with renewals shall mature and be paid not later than the end of the third fiscal year after the budget year in which the original notes shall have been issued. The amount of the tax anticipation notes originally issued in any budget year shall not exceed 50 percent of the amount of the property tax levied in that year for general city purposes. On renewal of tax anticipation notes of any given fiscal year, the amount renewed in the next succeeding fiscal year shall not exceed twenty percent of the amount originally issued, and the amount renewed in the second fiscal year succeeding the year of levy shall not exceed four percent of the amount originally issued.