Missouri Sales Tax Calculator
Estimate sales tax in Missouri at the average combined rate of 8.41%. 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.
Missouri sales tax rate
| State sales tax rate | 4.225% |
| Average local sales tax rate | 4.19% |
| Average combined rate | 8.41% |
Population-weighted averages as of July 1, 2025 (Tax Foundation). Your exact rate depends on your city and county.
How sales tax works in Missouri
Missouri charges a statewide rate of 4.225%. Counties and cities add their own rates on top, which is why the combined total varies by location. The 4.19% 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 Missouri's average combined rate of 8.41% adds $8.41 in sales tax, for a $108.41 total.
Frequently asked questions
What is the sales tax rate in Missouri?
Missouri's statewide rate is 4.225%. With an average local rate of 4.19%, the typical combined rate is about 8.41%.
How much is sales tax on $100 in Missouri?
At the average combined rate of 8.41%, sales tax on a $100 purchase is about $8.41, for a total of $108.41. Your exact rate depends on your city and county.
Why is my local rate different?
Counties and cities in Missouri set their own add-on rates, so the total varies by location. 4.19% 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.