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Sales tax calculator

Add sales tax to a price, or find the price before tax from a total.

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Total with tax $107.00

How it works

total = price × (1 + rate ÷ 100)

Adding tax: multiply the price by the rate and divide by 100 to get the tax, then add it on. Going backwards is not the same as taking the rate off the total: a $107 total at 7% tax started at $107 ÷ 1.07 = $100, not $107 − 7% = $99.51.

  1. Find the tax $100.00 × 7 ÷ 100 = $7.00
  2. Add it to the price $100.00 + $7.00 = $107.00

Printed from rocketcalc.io/money/sales-tax