US Sales Tax Calculator

Calculate sales tax for any US state, add tax to a price, or work out the pre-tax price from a tax-included total.

Sales Tax Details
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Auto-filled from state - edit for your exact local rate
State Sales Tax Rates (Average Combined)
StateAvg. Combined Rate

Source: estimated average combined state and local sales tax rates. Figures are approximate - always verify with your state Department of Revenue.

Quick Tips
  • Five states have no statewide sales tax
  • Local rates can add several percentage points
  • Some items (groceries, medicine) may be exempt
  • Rates can change - always check current local rates

Frequently Asked Questions

Multiply the price of an item by the sales tax rate (as a decimal) to get the tax amount, then add it to the price for the total. For example, a $50 item with an 8% sales tax rate has $4.00 tax, for a total of $54.00.

Five states have no statewide sales tax: Alaska, Delaware, Montana, New Hampshire and Oregon (sometimes called the "NOMAD" states). Alaska allows local governments to charge their own local sales taxes, so some Alaskan cities still have a small sales tax.

Most states allow counties and cities to add their own local sales tax on top of the statewide rate. This means the actual combined rate can vary significantly between cities, even within the same state. The rates in this calculator are statewide average combined rates - always check your local city/county rate for exact figures.

Use the "Price includes tax" mode. Divide the tax-included total by (1 + tax rate) to find the pre-tax price, then subtract that from the total to find the tax amount. For example, $108 total with 8% tax included means a pre-tax price of $108 / 1.08 = $100.

No. US sales tax is generally only charged on the final retail sale to the consumer and is added at checkout (not included in the displayed shelf price). VAT, used in the UK and EU, is charged at every stage of production and is included in the displayed price. If you need a UK VAT calculation, use our VAT Calculator instead.