Donaldson R F VAT & GST Calculator
Add VAT/GST to a net price, or extract the tax from a price that already includes it.
0.00Net (before tax)
0.00VAT / GST
0.00Gross (with tax)
How the calculation works
To add tax: gross = net × (1 + rate ÷ 100). To remove tax from a total that already includes it: net = gross ÷ (1 + rate ÷ 100). Note that subtracting the rate percentage from the gross price is wrong — 20% VAT on 120 is 20, not 24. Standard rates listed here are for convenience and change over time, so confirm the rate that applies to your goods or services with your tax authority.