——/tools · free · no signup
Sales Tax Calculator
Enter an amount and your tax rate to get the tax and total — plus the pre-tax amount hidden inside a tax-inclusive price. Instant, no signup, your own rate.
Sales tax
Add it on — or back it out.
Enter an amount and a tax rate. See the tax and total when adding tax, plus the pre-tax amount hidden inside a tax-inclusive price.
→ With tax
Total with tax
$108.25
Tax amount
8.25% of $100
$8.25
If that amount included tax
pre-tax · $7.62 is tax
$92.38
Math: tax = amount × 8.25% · pre-tax = amount ÷ (1 + 8.25%)
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