| Tax amount | -- |
| Price before tax | -- |
| Total with tax | -- |
Sales Tax Calculator
Add tax to a price, or reverse it out of a total that already includes tax.
How sales tax is calculated
Adding tax: tax = price × (rate ÷ 100), total = price + tax. Removing tax from a total that already includes it: pre-tax price = total ÷ (1 + rate ÷ 100), and the tax amount is the difference.
Example: a $100.00 item at an 8.25% tax rate comes to $8.25 in tax and a $108.25 total. Going the other way, a $108.25 total at 8.25% tax backs out to a $100.00 pre-tax price.
Sales tax rates vary by state, county, and city in the US, so enter the exact combined rate for your location — this tool doesn't assume a rate for you.