GST / VAT / Sales Tax Calculator

How much tax is in this price?

Works for GST, VAT, sales tax or any percentage-based tax in any country.

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Copy this code into your page. Free to use with the credit link intact.

How this calculator works

Adding tax: tax = amount × rate. Removing tax: net = amount ÷ (1 + rate), tax = amount − net.

Frequently asked questions

Why not just subtract the percentage?

Because tax was calculated on the net price. Removing 18% from a tax-inclusive price means dividing by 1.18, not subtracting 18%.

Results are estimates based on the numbers you enter and simplified assumptions. They are not financial advice. See our disclaimer.

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