State sales tax
5%, plus a separate local layer
Louisiana adds a 5% state rate, then parishes, municipalities, school boards and special districts layer on their own tax, collected separately by the parish rather than the state. Local rates typically run 4% to 7%, so most stores land in a 9% to 10.5% combined range, and economic development districts can push that into the 12% to 13.5% range. Because state and local returns are filed on separate systems, an item can owe zero state tax and full local tax in the same transaction. Storeveu applies state-level rates across every store and lets each location override for its exact parish and municipal jurisdiction.