Calculate sales tax on a purchase using the combined state and average local sales tax rate for any state.
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Sales Tax Estimate
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Combined Tax Rate—
Sales Tax Amount—
Formula
Sales Tax = Purchase Amount × Combined Rate (state rate plus average local rate).
Example
A $500 purchase in Tennessee, at a combined rate of 9.61%, costs about $548.05 total.
Not tax or financial advice. This calculator provides general estimates based on published 2026 figures. Always confirm important figures with the IRS, SSA, your state tax agency, a licensed lender, or a qualified professional.
Frequently Asked Questions
Which states have no sales tax?
Alaska, Delaware, Montana, New Hampshire, and Oregon have no statewide sales tax.
Why might my receipt show a different rate?
This tool uses each state average combined rate. Your specific city or county may charge a different local rate.