VATCalculator UK

£125 plus VAT

£125 plus 20% VAT is £150. The standard-rate VAT on £125 is £25. 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 £125 × 1.20 = £150, of which £25 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: £125 × 0.20 = £25.
  3. Gross: £125 + £25 = £150 (or £125 × 1.20).
Worked examples
£125 + 20% VAT = £150 — the standard-rate VAT is £25, added on top of the £125 net price.
On an invoice — quoting £125 net to a customer means billing £150 gross; you hand £25 to HMRC on your VAT return.
At the 5% reduced rate (domestic energy, children's car seats): £125 + 5% = £131.25, a VAT amount of £6.25.
Related: Remove VAT from £150 £120 plus VAT £150 plus VAT VAT amount tables
Sources: HMRC VAT rates · retrieved 2026-06-18.

Frequently asked questions

How much is 20% VAT on £125?
The VAT is £25. Multiply the net amount by 0.20: £125 × 0.20 = £25. Add it to the net price and the gross (VAT-inclusive) total is £150.
What is £125 plus VAT?
£150. To add standard-rate VAT, multiply by 1.20: £125 × 1.20 = £150. The 1.20 multiplier is the same as adding 20%.
What if the reduced 5% rate applies to £125?
Some supplies (domestic energy, children's car seats, some mobility aids) are charged at 5%, not 20%. At 5%, the VAT on £125 is £6.25 and the gross is £131.25.