Enter an amount and a tax rate to get the tax and the total price including tax.
How sales tax is worked out
This sales tax calculator adds a percentage tax to any price. Enter the pre-tax amount and your local rate to see the tax and the final total.
Rates vary widely by state, county and city, so use your exact combined rate for an accurate figure.
Try it with these numbers
On the values this calculator opens with, the total with tax is $107.25. Underneath, Tax comes out at $7.25 and Total with tax at $107.25. Change any field and every figure updates as you type.
How to use it
- Enter the amount before tax.
- Enter your sales tax rate as a percentage.
- Read the tax and the total with tax.
The calculation
tax = amount × rate% ÷ 100
total = amount + tax
FAQ
How do I calculate sales tax?
Multiply the price by the tax rate divided by 100, then add it to the price. For 7.25% on $100 the tax is $7.25 and the total is $107.25.
What sales tax rate should I use?
Use your combined state and local rate, which you can find on a recent receipt or your state revenue department’s site.
Is sales tax the same everywhere?
No — it varies by location and some items are exempt. Check local rules for specifics.