VATCalculator UK

£120 plus VAT

£120 plus 20% VAT is £144. The standard-rate VAT on £120 is £24. Change the amount or rate in the calculator below.

Enter values above to calculate.

To add UK VAT, multiply the net amount by 1 + (rate ÷ 100). At the standard 20% rate that is × 1.20, so £120 × 1.20 = £144, of which £24 is VAT.

UK VAT rates: 20% standard (most goods and services), 5% reduced (domestic energy, children's car seats), 0% zero-rated (most food, books, children's clothes). Zero-rated still appears on VAT returns; exempt supplies (insurance, finance, education) do not.

How it works.

Formula: net × (1 + rate ÷ 100) = gross.

  1. Convert the rate: 20 ÷ 100 = 0.20.
  2. VAT amount: £120 × 0.20 = £24.
  3. Gross: £120 + £24 = £144 (or £120 × 1.20).
Worked examples
£120 + 20% VAT = £144 — the standard-rate VAT is £24, added on top of the £120 net price.
On an invoice — quoting £120 net to a customer means billing £144 gross; you hand £24 to HMRC on your VAT return.
At the 5% reduced rate (domestic energy, children's car seats): £120 + 5% = £126, a VAT amount of £6.
Sources: HMRC VAT rates · retrieved 2026-06-18.

Frequently asked questions

How much is 20% VAT on £120?
The VAT is £24. Multiply the net amount by 0.20: £120 × 0.20 = £24. Add it to the net price and the gross (VAT-inclusive) total is £144.
What is £120 plus VAT?
£144. To add standard-rate VAT, multiply by 1.20: £120 × 1.20 = £144. The 1.20 multiplier is the same as adding 20%.
What if the reduced 5% rate applies to £120?
Some supplies (domestic energy, children's car seats, some mobility aids) are charged at 5%, not 20%. At 5%, the VAT on £120 is £6 and the gross is £126.