Sales Tax Calculator

Add tax to a price, or take it out of a total that already includes tax.

Calculate sales tax

Calculated instantly in your browser.

Browser-based
Result—

Enter the values above.

Price before tax—
Tax—
Price with tax—

How to use it

  1. Choose whether to add or remove tax.
  2. Enter the amount and the tax rate.
  3. Read the net price, tax amount and total.

Examples

  • 100 at 20% tax → tax 20.00, total 120.00.
  • 120 including 20% tax → price before tax 100.00.

Removing tax divides by (1 + rate), not subtracts the rate: 20% of 120 is 24, but the real tax inside 120 is 20. Amounts are rounded to the cent.