VATCalculator UK

£350 plus VAT

£350 plus 20% VAT is £420. The standard-rate VAT on £350 is £70. 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 £350 × 1.20 = £420, of which £70 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: £350 × 0.20 = £70.
  3. Gross: £350 + £70 = £420 (or £350 × 1.20).
Worked examples
£350 + 20% VAT = £420 — the standard-rate VAT is £70, added on top of the £350 net price.
On an invoice — quoting £350 net to a customer means billing £420 gross; you hand £70 to HMRC on your VAT return.
At the 5% reduced rate (domestic energy, children's car seats): £350 + 5% = £367.50, a VAT amount of £17.50.
Related: Remove VAT from £420 £300 plus VAT £400 plus VAT VAT amount tables
Sources: HMRC VAT rates · retrieved 2026-06-18.

Frequently asked questions

How much is 20% VAT on £350?
The VAT is £70. Multiply the net amount by 0.20: £350 × 0.20 = £70. Add it to the net price and the gross (VAT-inclusive) total is £420.
What is £350 plus VAT?
£420. To add standard-rate VAT, multiply by 1.20: £350 × 1.20 = £420. The 1.20 multiplier is the same as adding 20%.
What if the reduced 5% rate applies to £350?
Some supplies (domestic energy, children's car seats, some mobility aids) are charged at 5%, not 20%. At 5%, the VAT on £350 is £17.50 and the gross is £367.50.