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VAT Calculator

Add or remove VAT from an amount and see net, VAT and gross values.

Try an example:
Use the VAT rate that applies to your item or invoice. This is a simple arithmetic calculator.

Notes and next steps

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How it works

Add VAT to a net amount or remove VAT from a gross amount.

Formula used: VAT amount = net amount × VAT rate ÷ 100. Gross amount = net amount + VAT amount. Net amount = gross amount ÷ (1 + VAT rate ÷ 100). VAT amount from gross = gross amount − net amount.

Worked example

£100 plus 20% VAT becomes £120. A £120 gross price at 20% contains £20 VAT and £100 net.

Common mistakes
  • Mixing up net and gross prices.
  • Using the wrong VAT rate.
  • Rounding before the final total.
Related tools

Next useful tools for this task.

ShoppingDiscount CalculatorCalculate sale price, saving and final price after a percentage discount. MoneyPercentage CalculatorWork out percentages, parts of a whole and quick percentage checks. MoneyMonthly Cost CalculatorConvert a total cost into a monthly amount over a chosen number of months.
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FAQ

Do I enter the price before or after VAT?

Choose add VAT for a net price, or remove VAT for a gross price that already includes VAT.

Which VAT rate should I use?

Use the rate shown on the quote, receipt or invoice. Rates and exemptions depend on the item and transaction.