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Reverse Sales Tax Calculator

Work backwards from a total paid to find the pre-tax price and the sales tax included.

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About the Reverse Sales Tax Calculator

Have a receipt total but need the price before tax for an expense report or price comparison? Divide the total by 1 plus the tax rate. This calculator does it instantly and shows the tax portion.

How to use it

  1. Enter the total amount paid.
  2. Enter the sales tax rate.
  3. Read the pre-tax price and tax paid.

Good to know

  • Results are estimates for planning purposes and not financial, tax or legal advice. Lenders and tax authorities may calculate differently.
  • Rounding at the register can make the result differ by a cent.

Frequently asked questions

Example?

A $54.11 total at 8.25% tax: $54.11 ÷ 1.0825 = $49.99 before tax, $4.12 tax.

Why not subtract 8.25% of the total?

Because tax was calculated on the pre-tax price, not on the total.

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