GST / VAT / Sales Tax Calculator

Enter an amount and a tax rate, or pick a country preset. Choose whether to add tax to a price or remove it from a price that already includes tax.

How to use it

  1. Pick a country preset or type your own rate.
  2. Choose Add tax or Remove tax.
  3. Read the price without tax, the tax amount and the price with tax.

Calculators by country

UK VAT CalculatorAustralia GST CalculatorCanada GST CalculatorNew Zealand GST CalculatorSingapore GST Calculator

Frequently asked questions

What are the preset rates?

Australia GST 10%, UK VAT 20%, Canada federal GST 5% (provincial taxes are extra), New Zealand GST 15% and Singapore GST 9%. These are standard rates and some goods are zero-rated or exempt.

How do I remove tax from a price?

Divide the tax-inclusive price by 1 plus the rate. At 20%, divide by 1.2.

Is this for invoices?

It works for quick checks. For invoices, use the invoice generator, which adds tax per line.

Sources

Rates were checked against these official pages in November 2026. Rates change, so always confirm on the source before you act. This is an estimate, not tax, legal or financial advice.