Louisiana Sales Tax Calculator 2025-2026
Calculates sales tax for Louisiana (New 2025-2026 Rate).
Our free Louisiana sales tax calculator calculates sales tax using the 2025-2026 state rate (5%) plus parish/local rates. This Louisiana tax calculator combines state and local taxes (often exceeding 10% total). Enter purchase amount and parish rate for instant calculations.
The calculator multiplies your purchase amount by Louisiana's state sales tax rate (5% for 2025-2026) to calculate state tax. It then adds the parish (county) and local tax rates you specify, which typically range from 4% to 5% or more. The total sales tax is the sum of state and local taxes, and your final price includes the purchase amount plus all taxes. Louisiana has one of the highest combined sales tax rates in the nation.
State Tax: State Tax = Purchase Amount × 0.05 (5%)
Local Tax: Local Tax = Purchase Amount × (Parish Rate / 100)
Total Tax: Total Tax = State Tax + Local Tax
Total Price: Total Price = Purchase Amount + Total Tax