Sales Tax Calculator
Add sales tax to a price or extract the tax already included in a tax-inclusive price. Free US sales tax calculator, runs in your browser.
US state sales tax ranges from 0% (Oregon, Montana, New Hampshire, Delaware) to about 10% with local taxes in parts of Tennessee and Louisiana.
Frequently asked questions
- What is the difference between tax-exclusive and tax-inclusive?
- Tax-exclusive prices have tax added on top. Tax-inclusive prices (common in Europe and on some US shelf prices) already contain the tax, so the tool backs it out.
- Which US states have no sales tax?
- Oregon, Montana, New Hampshire and Delaware have no statewide sales tax. Alaska has no state tax but allows local taxes.
- How accurate is the rate?
- Enter the combined state plus local rate for your address — sites like Avalara or your state revenue department publish current combined rates.
This tool runs entirely in your browser. No data is uploaded anywhere.