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Reverse Sales Tax Calculator
Back out the pre-tax price and the sales tax amount from a tax-inclusive total — handy for receipts and expense reports.
How to use this tool
- 1Paste or type your input above.
- 2The result updates instantly.
- 3Copy the output with one click.
Frequently asked questions
How do I find the pre-tax price from a total?+
Divide the total by (1 + rate ÷ 100). A $107 total at 7% tax is $107 ÷ 1.07 = $100 pre-tax, so the tax was $7.
Is my data private?+
Yes. The tool runs entirely in your browser — nothing you paste or type is uploaded to a server.
Learn more
- Reverse Sales Tax Calculator: formula and example
- reverse sales tax calculator explained
- Common mistakes with reverse sales tax calculator