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VAT calculator

Type the amount and the VAT rate that applies to you, and choose whether to add VAT to a net price or remove it from a price that already includes it.

Runs locally in your browser

How it works

To add VAT, the amount is the net figure, the tax is net × rate ÷ 100, and the gross is the two added together. To remove VAT, the amount you typed is the gross, so the net is gross ÷ (1 + rate ÷ 100) and the tax is the difference. Removing VAT is not the same as subtracting the rate: taking 20% off a gross figure over-refunds, because the 20% was charged on the smaller net figure. The rate is deliberately not pre-filled, because it differs by country and by item, and it changes.

Worked example

At 20%: a net price of 200 has VAT of 200 × 20 ÷ 100 = 40 and a gross of 240. Going the other way, a gross of 240 gives a net of 240 ÷ 1.2 = 200 and VAT of 40 — subtracting 20% of 240 would wrongly give 192.

Questions and answers

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