Louisiana Sales Tax Calculator
Estimate sales tax in Louisiana at the average combined rate of 10.11%. Add tax to a price or back it out of a total.
Enter your combined state + local rate. U.S. sales tax rates vary by city and county.
Louisiana sales tax rate
| State sales tax rate | 5% |
| Average local sales tax rate | 5.11% |
| Average combined rate | 10.11% |
Population-weighted averages as of July 1, 2025 (Tax Foundation). Your exact rate depends on your city and county.
How sales tax works in Louisiana
Louisiana charges a statewide rate of 5%. Counties and cities add their own rates on top, which is why the combined total varies by location. The 5.11% figure above is the population-weighted average. To add tax, multiply the price by the rate; to back it out of a tax-inclusive total, divide by 1 plus the rate.
Worked example
A $100 purchase at Louisiana's average combined rate of 10.11% adds $10.11 in sales tax, for a $110.11 total.
Frequently asked questions
What is the sales tax rate in Louisiana?
Louisiana's statewide rate is 5%. With an average local rate of 5.11%, the typical combined rate is about 10.11%.
How much is sales tax on $100 in Louisiana?
At the average combined rate of 10.11%, sales tax on a $100 purchase is about $10.11, for a total of $110.11. Your exact rate depends on your city and county.
Why is my local rate different?
Counties and cities in Louisiana set their own add-on rates, so the total varies by location. 5.11% is the population-weighted average; enter your exact combined rate for a precise figure.
Sales tax by state
Or use the general sales tax calculator with any rate.