Add VAT to a net (ex-VAT) price to get the gross total. Enter your amount, choose 20%, 5% or 0%, and press Add VAT.
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VAT is always calculated on the net (ex-VAT) amount. At the standard UK rate of 20% you multiply the net by 1.20 to get the gross (VAT-inclusive) total. The VAT itself is net × 0.20.
| Step | Formula | Example (£100 net) |
|---|---|---|
| VAT | net × 0.20 | £20.00 |
| Gross (incl. VAT) | net × 1.20 | £120.00 |
For the reduced 5% rate multiply by 1.05. For zero-rated supplies the gross equals the net. Choose the rate on the calculator before pressing Add VAT.
Use Add VAT when quoting or invoicing from a net price, checking a supplier’s figures, or converting catalogue prices to VAT-inclusive totals for consumers.
Multiply £50 by 1.20 to get a gross of £60. The VAT amount is £10.
Yes. Adding VAT turns a net (ex-VAT) figure into a gross (VAT-inclusive) total.
Use the reverse VAT calculator and press Remove VAT — divide by 1.20 at the standard rate, do not subtract 20%.