The Alabama back to school sales tax holiday begins July 19 at 12:01 a.m. and ends at midnight on Sunday July 21.
A county or municipality, by resolution or ordinance adopted at least 30 days prior to the third full weekend of July, may provide for the exemption of covered items from county or municipal sales or use taxes during the same time period, under the same terms, conditions, and definitions as provided for the state sales tax holiday.
Click on the link for exempt items: Alabama Department of Revenue