Marketing Calculators
Sales Tax Calculator
Add sales tax or VAT to any amount.
FreeNo sign-upWorks in your browser
Enter details
$
%
Result
Total (with tax)
$113.00
Tax amount
$13.00
About the Sales Tax Calculator
Add sales tax, VAT, or GST to any price free — enter the amount and your local rate to see the tax and the grand total instantly ($100 at 13% HST = $113). Works for any jurisdiction: US state sales taxes, Canadian GST/HST/PST, UK and EU VAT, Australian GST. Great for checkout estimates, invoices, expense reports, and knowing the real shelf price before you reach the register.
How to use the Sales Tax Calculator
- 1Enter your the amount and the tax rate.
- 2Read the result instantly — it recalculates as you type.
- 3Adjust the numbers to model different scenarios.
Frequently asked questions
How is sales tax calculated?
Multiply the pre-tax amount by the tax rate divided by 100, then add it to the amount. For example, $100 at 13% = $13 tax, $113 total.
Does this work for VAT and GST?
Yes — enter your local VAT or GST rate as the tax rate.
How do I remove sales tax from a total?
Divide by 1 plus the rate: a $113 total at 13% tax = 113 ÷ 1.13 = $100 pre-tax. Don't subtract 13% — that overshoots.