Sales Tax Calculator
Calculate sales tax for all 50 US states. Add or remove tax from any price instantly. Free sales tax rate calculator by state and city.
Total with Tax
$108.88
Pre-Tax
$100.00
Tax Amount
$8.88
About the Sales Tax Calculator
Sales tax rates in the United States vary dramatically by state, county, and city — ranging from 0% in states like Oregon and Montana to over 10% in parts of Louisiana and Tennessee. Our sales tax calculator instantly computes the tax amount and total price for any purchase in any US state, and supports both adding tax to a pre-tax price and removing tax from a tax-inclusive price.
How It Works
Adding sales tax: Total = Price × (1 + Rate/100). Removing sales tax from an inclusive price: Pre-tax Price = Total ÷ (1 + Rate/100). For example, a $100 purchase in California with 7.25% state tax (plus local) at 8.5% combined: Total = $100 × 1.085 = $108.50. To find the pre-tax price of a $108.50 purchase in California: $108.50 ÷ 1.085 = $100.
Tips & Best Practices
- ✓Five states have no sales tax: Oregon, Montana, New Hampshire, Delaware, and Alaska.
- ✓Local sales taxes can add 2–5% on top of state rates — always check the combined rate for your city.
- ✓Online purchases now require sales tax in most states following the 2018 Supreme Court South Dakota v. Wayfair decision.
- ✓Groceries are exempt from sales tax in most states; prepared food is typically taxable.
- ✓Clothing under $110 per item is tax-exempt in New York State.
Who Uses This Calculator
Shoppers comparing prices across state lines, small business owners calculating customer invoices, accountants preparing sales tax returns, and travelers understanding the true cost of purchases in unfamiliar locations all use this calculator.
Optimised for: USA · Calculations run in your browser · No data stored
Frequently Asked Questions
Which states have no sales tax?
Oregon, Montana, New Hampshire, Delaware, and Alaska have no statewide sales tax.