About the Sales Tax / VAT / GST Calculator
Add tax to a price or remove tax from a price that already includes it. This tool is free, works in your browser and needs no sign-up.
How to use the Sales Tax / VAT / GST Calculator
Enter the amount and the tax rate, then choose whether to add tax or remove it.
Formula used
Tax = Price × rate ÷ 100. Price before tax = Total ÷ (1 + rate ÷ 100).
Example
200 with 10% tax becomes 220.
Frequently asked questions
Is the Sales Tax / VAT / GST Calculator free to use?
Yes. It is completely free and you can use it as many times as you like.
How accurate is the Sales Tax / VAT / GST Calculator?
The calculator uses standard formulas, so the maths is exact. Real life results can differ because of fees, taxes, rounding or personal factors, so treat the answer as an estimate.
Do you store the numbers I enter?
No. All calculations run in your browser. The values you type are not sent to our server.
Disclaimer: results are estimates for information only. They are not financial, medical or professional advice.