VAT Calculator
Add VAT or GST to a price, or take it off, at your country’s rate.
Good to know. To take 25% VAT off a price, divide by 1.25. Taking 25% off takes off too much.
How it works
In plain words
To add VAT, multiply the net price by 1 plus the rate. To remove VAT, divide the gross price by 1 plus the rate. Don’t just subtract the rate as a percentage of the gross price.
The formula
add: gross = net × (1 + rate ÷ 100) remove: net = gross ÷ (1 + rate ÷ 100) VAT = gross − net
Worked example
Adding 20% VAT to 100: 100 × 1.2 = 120.00, of which 20.00 is VAT.
Sources
Sources checked September 29, 2026. 11 automated tests check its answers on every change.
About the VAT calculator
Value added tax (VAT), goods and services tax (GST) and sales tax all work the same way for this purpose: a percentage is added on top of a net price. The standard rates of 60 countries are built in, checked in September 2026, from 5% in the UAE and Taiwan to 27% in Hungary. Many countries charge less on food, books or transport, and those rates change often, so type one in when it applies.
Adding VAT is simple: multiply by 1 plus the rate. Removing it is where mistakes happen. If a price of 120 includes 20% VAT, the VAT is not 20% of 120 (24). It is 20% of the net price, which is 100, so the VAT is 20. The correct method is to divide by 1.2.
A shortcut for removing VAT: the VAT share of a gross price is rate ÷ (100 + rate). At 20%, that is 20/120, or one sixth, of the gross price. At 25%, it is 25/125, or one fifth.
This calculator is for quick estimates and checking invoices. Tax rules on rounding, exemptions and reduced rates vary, so for accounting and tax returns, follow your tax authority’s guidance.
Questions people ask
How do I remove 20% VAT from a price?
Divide the price by 1.2. For 120 including VAT, the net price is 100 and the VAT is 20.
Why isn’t VAT 20% of the price including VAT?
Because VAT is calculated on the net price. Taking 20% of the gross price overstates it. The VAT in a gross price is rate ÷ (100 + rate) of it, which is one sixth at 20%.
Does this work for US sales tax?
The math is the same, but the US has no VAT: each state and city sets its own sales tax. The Sales Tax Calculator has every state’s rate.
Which VAT rate should I use?
The standard rate of your country, unless the product has a reduced one. Many countries charge less on food, books or transport; enter that rate in the last field.