Sales tax calculator
Calculate US sales tax and the total price from the amount and the tax rate.
Total price
$107.00
Sales tax$7.00
Pre-tax amount$100.00
Sales tax rates vary by US state and city — check your local rate.
How the calculation works
Tax = amount × rate and Total = amount + tax. In the US, sales tax is usually added at checkout, not included in the shelf price.
Frequently asked questions
How do I find my tax rate?
Add your state and local (city/county) rates for your location.
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Updated on June 18, 2026 · by Rafael Rossi · Methodology & sources