Tax calculator

VAT Calculator

Add VAT to a net price or strip it out of a gross total. Enter an amount, pick your rate, and get the net, the VAT and the gross side by side. Free, no signup.

Free, no signupAdd or remove VAT20%, 5% or custom

Your figure

Amount excluding VAT

The net price you want to add VAT to

VAT rate

Adding 20% VAT

£120.00

£100.00 plus £20.00 VAT.

Net (excl. VAT)

£100.00

VAT (20%)

£20.00

Gross (incl. VAT)

£120.00

At 20%, a quick shortcut: the VAT inside any gross total is the total divided by 6. So a £120 total holds £20 of VAT and £100 net.

UK VAT: standard 20%, reduced 5%, zero-rated 0%. Zero-rated is not the same as VAT-exempt. A guide, not tax advice.

Simon Chadwick

Founder, Orbit Money

Method: UK VAT rates (gov.uk)Updated: 14 July 2026Sources: gov.uk/vat-rates

How to calculate VAT

To add VAT at the standard 20% rate, multiply the net price by 1.20. So £100 net becomes £120 gross, with £20 of VAT. For the 5% reduced rate, multiply by 1.05 instead. The general rule is gross = net × (1 + rate), whatever the rate.

Reverse VAT: work out the VAT in a total

When a price already includes VAT, divide the total by 1.2 to get the net figure, then subtract to find the VAT. There is a quick shortcut at 20%: the VAT inside any gross total is the total divided by 6. So a £120 gross price contains £20 of VAT and £100 net. Switch the calculator to Remove VATand it does this for you at any rate.

Common net prices at 20% VAT

Net price	VAT (20%)	Gross total
£10	£2.00	£12.00
£50	£10.00	£60.00
£100	£20.00	£120.00
£500	£100.00	£600.00
£1,000	£200.00	£1,200.00

Frequently asked questions

How do you remove 20% VAT from a figure?

Divide the VAT-inclusive total by 1.2. The result is the net price. For example, £120 ÷ 1.2 = £100, so the VAT was £20.

What is the formula for calculating VAT backwards?

Net = total ÷ (1 + VAT rate). At 20% that is total ÷ 1.2. The VAT is then the total minus the net.

How do you work out the VAT in a gross total at 20%?

Divide the total by 6. A £120 gross price contains £20 of VAT, because the VAT is 20/120 of the total.

What is the current UK VAT rate?

The standard rate is 20%. A reduced 5% rate applies to items such as home energy and children's car seats, and some goods like most food and children's clothes are zero-rated at 0%.

What is the VAT registration threshold?

You must register for VAT if your taxable turnover over the last 12 months goes over £90,000. This threshold has applied since 1 April 2024.

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About the author

Simon Chadwick

Founder of Orbit Money

Simon is the founder of Orbit Money, a tool that helps people track subscriptions and recurring spend. He builds Orbit's free money calculators and writes about personal finance for UK and Australian readers.