Reverse sales tax calculator
Enter a tax-included total and the sales tax rate to back out the pre-tax price and the tax amount. Everything stays in your browser.
Total paid (tax included)
Sales tax rate (%)
Common rates
Currency symbol
—Pre-tax price
—Sales tax amount
—Total (check)
Default rate is 8% — change it to match your state, county or city sales tax. This is an estimate, not tax advice.
Everything runs in your browser. No upload, no sign-up.
How it works
STEP 1
Enter the total
Type the full amount you paid — the price that already includes sales tax.
STEP 2
Set the tax rate
Pick a common rate or type your exact local sales tax percentage.
STEP 3
See the split
The pre-tax price and the tax amount are backed out instantly. All private.