Sales Tax Calculator
The sales tax on a price in any US state, or the price before tax.
Good to know. Five states have no state sales tax. Alaska’s towns charge one anyway.
How it works
In plain words
The combined rate is the state’s rate plus your city and county rate. To add tax, multiply the price by 1 plus that rate. To find the price before tax, divide the total by 1 plus that rate.
The formula
rate = state rate + local rate total = price × (1 + rate ÷ 100) price = total ÷ (1 + rate ÷ 100)
Worked example
A 100 purchase in Texas, at the state’s 6.25% plus 2% local tax: 8.25% in all, so the tax is 8.25 and the total 108.25.
Sources
- Tax Foundation, State and Local Sales Tax Rates, Midyear 2026 State rates at 1 July 2026.
- District of Columbia Budget Support Act of 2025 D.C.’s rate rises from 6% to 7% on 1 October 2026.
Sources checked September 29, 2026. 6 automated tests check its answers on every change.
About the sales tax calculator
The US has no national sales tax. Each state sets its own rate, from 2.9% in Colorado to 7.25% in California, and in most states cities, counties and special districts add theirs on top. That is why the same purchase can cost a different amount a few miles away.
Pick your state and its 2026 rate is filled in. Then add your local rate: it is printed on most receipts, and every state’s revenue department has a lookup by address. Delaware, Montana, New Hampshire and Oregon have no sales tax at all; Alaska has no state tax, but many towns charge one.
To work back from a total that includes tax, choose “Find the price before tax”. Don’t take the rate off the total: at 8.25%, the tax in a 108.25 bill is 8.25, not 8.93. Divide by 1.0825 instead.
What is taxed differs too. Many states tax groceries at a lower rate or not at all, and some tax clothing or services differently. For a business charging tax, the rate depends on where the buyer is, so use your state’s lookup for each address.
Questions people ask
Which states have no sales tax?
Delaware, Montana, New Hampshire and Oregon have none. Alaska has no state sales tax, but many of its towns and boroughs charge one.
Which state has the highest sales tax?
California has the highest state rate, 7.25%. With local taxes added, Louisiana, Tennessee and Washington have the highest averages, above 9.5%.
How do I find the price before sales tax?
Divide the total by 1 plus the rate. At 8.25%, a 108.25 total was 100 before tax.
Where do I find my local sales tax rate?
On a recent receipt, or on your state’s department of revenue website, which usually has a lookup by address.