Sales tax, calculated.

SalesTaxLab

Free calculators that turn a price and a tax rate into the sales tax and total, with sourced statewide base rates pre-filled for each U.S. state.

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Sales Tax Calculator
A free sales tax calculator that turns a pre-tax price and a tax rate into the sales tax owed and the total amount due. Select a state to pre-fill its 2026 statewide base rate and average combined state-plus-local rate from the Tax Foundation, then adjust the rate to match your exact local jurisdiction. The rate is editable because local rates vary by address and some items are exempt. It runs entirely in your browser and is an estimate, not tax advice.

Guides for better estimates

Start with the calculator, then use these sourced guides to understand the assumptions behind it.

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