Tax & Paycheck

Sales Tax Calculator

Calculate sales tax and your total purchase price.

Enter a price and your local sales tax rate to calculate the tax amount and total price — works for any US state, county, or city rate you enter.

Enter a valid price.
Combined state + local rate for your areaEnter a valid tax rate.

Total Price

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Sales Tax Amount

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How to Use This Tool

  1. Enter the price before tax.
  2. Enter your local sales tax rate (combined state + local, if applicable).
  3. Click Calculate for the tax amount and total price.

The Sales Tax Formula

Sales Tax = Price × Tax Rate

Total Price = Price + Sales Tax

Why Sales Tax Rates Vary So Much

In the US, sales tax is set at the state level, and many states also allow counties and cities to add their own local sales tax on top — meaning the combined rate can vary significantly even between neighboring cities. Some states (like Oregon, Montana, New Hampshire, and Delaware) have no state sales tax at all.

Finding Your Local Rate

Your state's department of revenue website typically publishes current combined sales tax rates by zip code or locality. Retailers' point-of-sale systems also calculate this automatically at checkout based on your location.

Frequently Asked Questions

Do all US states charge sales tax?

No — Oregon, Montana, New Hampshire, Delaware, and Alaska (at the state level) do not impose a statewide sales tax, though Alaska allows local sales taxes in some jurisdictions.

Why is the tax rate in my city different from a nearby city?

Many states allow counties and cities to add their own local sales tax on top of the state rate, which is why combined rates can vary meaningfully even within the same state.

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This calculator is provided for general informational and estimation purposes only. Results should not be treated as professional financial, tax, legal, medical, or engineering advice. Always verify critical calculations with a qualified professional or official source before making decisions.