Use this calculator to add tax to a price, or to find the amount without tax from a total that already includes tax. Enter the amount, the tax rate and choose which case applies. Everything runs in your browser. Nothing you type is stored or sent anywhere.
Example: a price of 1,000 with 18% tax gives a tax of 180 and a total of 1,180.
Is this the official GST or tax bill? No. This is a simple calculation. Your invoice or tax authority decides the exact rate, rounding and rules for your product or service.
Why is removing tax different from taking the tax percentage off the total? Because the percentage is calculated on the amount without tax, not on the total. So the tax must be divided by (1 + rate), as shown above.
Does this work for every country? The math is the same everywhere, but tax rates and rules differ. Check the rate that applies to you.
Estimate only. This page does not give tax or accounting advice. Check with a qualified tax professional for your situation.