Add VAT to a net figure, or strip VAT out of a VAT-inclusive price, in a single tap. Perfect for invoices, expenses and quick checkout maths — with the net, VAT and gross amounts shown clearly.
Choose your direction and rate
VAT (Value Added Tax) is charged on most goods and services in the UK at a standard rate of 20%. Whether you’re raising an invoice or checking a receipt, the maths comes down to two simple operations.
| You want to… | Formula | Example (£100 / £120) |
|---|---|---|
| Add 20% VAT | net × 1.20 | £100 → £120 |
| Find the VAT element | net × 0.20 | £100 → £20 VAT |
| Remove 20% VAT | gross ÷ 1.20 | £120 → £100 |
| VAT inside a gross price | gross ÷ 6 | £120 → £20 VAT |
Not everything is charged at 20%. The UK uses several VAT rates:
A UK business must register for VAT once its taxable turnover exceeds the registration threshold (currently £90,000 in a rolling 12-month period). Once registered, you charge VAT on sales, reclaim VAT on purchases, and pay the difference to HMRC — usually quarterly. This calculator is ideal for working out those line items.
Multiply the net price by 1.20. £100 + 20% VAT = £100 × 1.20 = £120, of which £20 is VAT.
Divide the VAT-inclusive price by 1.20. £120 ÷ 1.20 = £100 net, leaving £20 of VAT. (You can also divide a 20% gross price by 6 to get the VAT directly.)
The standard rate is 20%. A 5% reduced rate applies to items like domestic energy, and many essentials such as most food and children’s clothes are zero-rated.
Yes — VAT is a UK-wide tax set by HM Treasury, so the same rates apply in England, Scotland, Wales and Northern Ireland.