Shopping online or checking a receipt? Our free sales tax calculator tells you exactly how much tax you will pay in any US state. Pick your state, enter the price, and you get the tax amount and the total in one second — no guessing, no surprises at checkout.
You can also run it in reverse: enter a tax-inclusive total and find the original pre-tax price. Handy for receipts, refunds, and budgeting.
How to Use the Sales Tax Calculator
- Enter the item price.
- Select your US state from the dropdown.
- See the state base tax amount and the total instantly.
- Switch to reverse mode to work backwards from a total.
Frequently Asked Questions
Which states have no sales tax?
Five states — Alaska, Delaware, Montana, New Hampshire, and Oregon — have no statewide sales tax, though local taxes can still apply in parts of Alaska.
Why does my receipt show more tax than this calculator?
This calculator uses statewide base rates. Many cities and counties add their own local sales tax on top, so your final receipt can be a little higher — the panel notes this honestly.
Is sales tax the same for online purchases?
Usually yes: most states require online retailers to collect the sales tax of the buyer’s state. The rate depends on where the item is delivered.
For general percent math, our Percentage Calculator is right there when you need it.