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Free Sales Tax Calculator - Use Online Without Installing

Web

Add sales tax to a price or extract it from a tax-inclusive total

Run in your browser

Amount (USD)Tax rate (%)

There is no single U.S. sales tax rate. Enter the rate for the relevant state and local jurisdiction; the field is intentionally blank.

Price before sales tax Total including sales tax

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Enter an amount in dollars.
Look up and enter the applicable state and local sales tax rate; no nationwide rate is assumed.
Choose pre-tax price or tax-inclusive total and review the result.

U.S. sales tax varies by state, city, product, and transaction. The calculator does not determine the correct jurisdiction or taxability.
Rounding on an actual receipt can differ by line item or merchant.

The receipt shows another amount: Check the address-specific rate, exempt items, seller rounding, and whether the entered amount already includes tax.

Amount and tax rate are calculated in your browser, not sent to ToolMarket servers.

User-entered state/local sales tax rate; no universal U.S. default · Reviewed 2026-09-14

Why is the tax rate blank?

There is no single U.S. sales tax rate. Enter a rate verified for your transaction and jurisdiction.