VAT, GST and sales-tax calculator
Quickly add tax to a net price or remove tax from a gross (tax-inclusive) price. Pick a country to load its standard VAT/GST rate, or type any custom rate for reduced rates and US state sales tax. It suits freelancers writing invoices, shoppers checking a receipt, and anyone doing a quick reverse-VAT calculation.
How it works
In add-tax mode your amount is the net price, so tax = net × rate ÷ 100 and
gross = net + tax. In remove-tax mode your amount is the gross, tax-inclusive
price, so the net is recovered with net = gross ÷ (1 + rate ÷ 100) and tax = gross − net. Selecting a country fills in its standard rate, but the rate field stays fully
editable for reduced rates or any custom percentage.
Example
Add 20% VAT to £100: tax = £100 × 0.20 = £20, gross = £120. Run it in reverse — remove 20% from a £120 inclusive price: net = £120 ÷ 1.20 = £100, with £20 of VAT.
| Country | Standard rate |
|---|---|
| United Kingdom | 20% VAT |
| Germany | 19% VAT |
| Ireland | 23% VAT |
| Australia | 10% GST |
| Canada | 5% GST |
| UAE | 5% VAT |
The breakdown shows the net amount, the tax, and the gross total. Everything is worked out locally in your browser — nothing is uploaded.