Sales tax calculator
Price with tax added, or tax backed out.
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- Step-by-step build guide
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How it's calculated
Sales tax is the price times the tax rate. Adding tax multiplies the price by one plus the rate; backing tax out of a tax-included price divides by the same number, which is not the same as subtracting the rate. Enter your combined state and local rate.
What sales tax rate should I enter?
Your combined rate: state plus any county, city and district taxes. Receipts show it, and most state revenue sites have a lookup by address. Rates run from 0% in a few states to over 10% in some cities.
How do I find the pre-tax price from a receipt total?
Switch "The price is" to "Tax included" and enter the total. The tool divides by (1 + rate) rather than knocking the rate off, which would understate the price.
Does the tool handle tax-exempt items?
No. Groceries, prescriptions and clothing are exempt or taxed at a lower rate in many states, so apply the tool to the taxable part of your purchase only.
Results are estimates for informational purposes only and are not financial, medical or legal advice.

