How to use the reverse sales tax calculator
- Enter the Price you paid, with tax included.
- Enter the Tax rate for your state or city, such as 8.25.
- Read the price before tax and how much of the total was tax.
The formula
Price before tax = total ÷ (1 + rate), and tax = total − price before tax.
| Total paid | Tax rate | Before tax | Tax |
|---|---|---|---|
| 108.25 | 8.25% | 100.00 | 8.25 |
| 53.50 | 7% | 50.00 | 3.50 |
| 26.25 | 5% | 25.00 | 1.25 |
Use it to check an expense claim, split a shared bill fairly, or see how much tax was on a receipt that only shows the total. To go the other way and add tax to a price, use the sales tax calculator.