Sales Tax Calculator
Add sales tax to a price, or reverse a total to find the pre-tax amount.
Result
Enter your numbers above
U.S. state sales tax rates range from 0% (e.g. Oregon, Montana) to over 9% combined state + local rate, so check your local rate for accuracy.
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How to calculate sales tax
To add sales tax: multiply the price by the tax rate, then add that to the price. To reverse it (find the pre-tax price from a receipt total): divide the total by (1 + tax rate).
Sales tax in the United States
Unlike VAT countries, the U.S. has no federal sales tax. Instead, tax rates are set at the state, county, and city level, so the combined rate varies by location — always confirm the exact rate for your city before relying on this for bookkeeping.
Frequently asked questions
- Which U.S. states have no sales tax?
- Alaska, Delaware, Montana, New Hampshire, and Oregon have no statewide sales tax, though some allow local taxes.
- Is this calculator accurate for my city?
- It uses whatever rate you enter, so it's accurate as long as you enter your correct combined state + local rate.