Missouri Sales Tax Calculator
The average combined sales tax rate in Missouri is 8.41% in 2026 — a 4.225% state rate plus about 4.185% in local taxes. On a $100 purchase that's $8.41 in tax for a $108.41 total. Enter any amount below to add or remove Missouri sales tax instantly.
$100.00 total
Before tax: $100.00 · Sales tax: $0.00 (0%)
State & average combined rates: Tax Foundation 2026. Local rates vary by city/county — adjust the rate for an exact figure. How we calculate →
Missouri sales tax rate in 2026
Missouri's statewide base sales tax rate is 4.225%. On top of that, counties, cities and special districts add local taxes that average about 4.185%, for an average combined rate of 8.41%. These figures come from the Tax Foundation's 2026 state and local sales-tax data.
Because local rates differ from city to city, the auto-filled 8.41% is the population-weighted state average. For an exact figure at a specific address, adjust the rate in the calculator to your local combined rate.
How much is sales tax on a purchase in Missouri?
At Missouri's average combined rate of 8.41%, here's the tax and total on common amounts:
$10 → $0.84 tax, $10.84 total · $50 → $4.21 tax, $54.21 total · $100 → $8.41 tax, $108.41 total · $1,000 → $84.10 tax, $1084.10 total.
Enter your own amount in the calculator above for an exact figure, or switch to reverse mode to find the pre-tax price from a total.
How Missouri sales tax is calculated
Sales tax is the price multiplied by the rate as a decimal. Using Missouri's 8.41% combined rate, a $100 item is 100 × 0.0841 = $8.41 in tax, for a $108.41 total. To work backwards from a total that already includes tax, divide by one plus the rate — the calculator's Remove tax mode does this in one step.
Missouri sales tax — frequently asked questions
What is the sales tax in Missouri?
Missouri's statewide sales tax rate is 4.225% in 2026. With local taxes, the average combined rate is 8.41%.
How much is sales tax on $100 in Missouri?
At Missouri's average combined rate of 8.41%, sales tax on a $100 purchase is $8.41, for a total of $108.41. Enter any amount in the calculator above for an exact figure.
How do I calculate Missouri sales tax?
Multiply the price by 8.41% as a decimal (0.0841). For example, $50 × 0.0841 = $4.21 tax, for a $54.21 total. The calculator above fills in the rate and does it instantly.
Does Missouri have local sales taxes?
Yes. On top of the 4.225% state rate, Missouri localities add an average of about 4.185%, which is why the combined rate averages 8.41% and varies by city and county.
How do I remove sales tax from a total in Missouri?
Divide the total by one plus the rate. On a $108.41 total at 8.41%, the pre-tax price is $100.00 and the tax was $8.41. Use the “Remove tax” mode above to do this automatically.
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