Sales tax calculator
Enter a price and pick a state to see the tax and total, or switch the mode to pull the tax out of a price that already includes it.
Total with tax
$107.25
$7.25 tax at a 7.25% combined rate
How to use it
- Enter the price before tax, or the total if you're working backwards.
- Pick the state. The statewide base rate fills in automatically.
- Add your local rate if your city or county charges one; combined rates run above 9% in parts of Louisiana, Tennessee, Arkansas, Alabama and Washington.
- Read the tax and the total. In reverse mode, read the tax that was hidden in the price.
Worked example
A $100.00 purchase in California, state rate 7.25%, with a 2.00% local rate.
Rate is 9.25%. Tax: $100.00 × 9.25% = $9.25. Total: $109.25.
Backwards: a receipt total of $109.25 at 9.25% means the price before tax was $109.25 ÷ 1.0925 = $100.00.
How this is calculated
The rate is the statewide base rate plus whatever local rate you enter. Adding tax: tax = price × rate, total = price + tax. Backing tax out of a total: price before tax = total ÷ (1 + rate), and the tax is the difference. Tax is rounded to the cent, and retailers round each line or each receipt slightly differently, so a real receipt can differ by a cent. Statewide rates only; local rates vary by address.
rate = state rate + local rate
Adding tax: tax = price × rate, total = price + tax
Backing tax out: price before tax = total ÷ (1 + rate), tax = total − price before tax
Tax is rounded to the cent. Retailers round each line or each receipt slightly differently, so a real receipt can differ by a cent.
Rates, sources and limits
- US state sales tax (statewide base rates) rates effective 1 Jan 2025, checked 13 Sep 2026. Source
Statewide rates only; local rates vary by address. This is a general calculation, not tax advice.
Rates current as of 2026. Last reviewed 13 Sep 2026 by the CalcRabbit team. Estimates only, not financial, tax or medical advice.
Frequently asked questions
Which states have no sales tax?
Alaska, Delaware, Montana, New Hampshire and Oregon have no statewide sales tax. Alaska lets localities charge their own, so some Alaskan towns still have a rate.
Why is my real rate higher than the state rate?
Cities, counties and special districts add their own rates on top. The combined rate is what you pay at the register. Enter the local part in the local rate field; state revenue department sites have a lookup by address.
Do marketplaces collect sales tax for me?
Yes. Under marketplace facilitator laws, eBay, Etsy, Mercari, Poshmark, Depop and Amazon collect and remit sales tax on your sales in every state that has one. If you sell through your own site, you're responsible once you pass a state's threshold, typically $100,000 in sales into that state.
Is the rate I get here exact for my address?
The state rate is. The local rate is whatever you enter, so for an exact figure look up the combined rate for the delivery address. Rates change most often on 1 January and 1 July.