Updated for 2026/27
VAT on £100
Quick answer
Adding 20% VAT to £100 gives £120 — that's £20 of VAT. If £100 already includes VAT, the VAT portion is £17.
Reviewed by TaxFly Editorial Team
How we calculate
- Net amount
- £100
- VAT @ 20%
- + £20
- Gross (inc. VAT)
- £120
How much is VAT on £100?
At the standard UK rate of 20%, the VAT on £100 is £20. Add that to the net price and the total including VAT is £120.
Removing VAT from £100
If £100 is a VAT-inclusive (gross) figure, work backwards by dividing by 1.20: the net amount is £83 and the VAT element is £17. This is the figure a VAT-registered business reclaims or reports.
| Scenario | Net | VAT | Gross |
|---|---|---|---|
| £100 + VAT | £100 | £20 | £120 |
| £100 inc. VAT | £83 | £17 | £100 |
Other amounts
Frequently asked questions
At 20% the VAT on £100 is £20, giving a gross total of £120.
Divide by 1.20. £100 including VAT is £83 net plus £17 VAT.
The standard rate is 20%. A reduced 5% rate and a 0% rate apply to some goods and services.
