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Calculator · United Kingdom

United Kingdom VAT calculator (20%)

Add VAT at the standard 20% rate to a net price, or work out the VAT already included in a VAT-inclusive total — in GBP. The calculator below is free, needs no sign-up, and runs entirely in your browser.

Free · nothing uploaded · works offline once loaded.

Rates are pre-filled for convenience but always editable. Verify the current rate with your country's tax authority. Calculator results are estimates only, not professional advice.

Result
Net (excl. VAT)£100.00
VAT (20%)£20.00
Gross (incl. tax)£120.00
gross = amount × (1 + rate)

United Kingdom VAT rates

RateBandMultiply net by
20%Standard rate1.2
5%Reduced rate1.05
0%Zero rate1

The rate field in the calculator is editable — type any of these. Which band applies depends on the goods or service; confirm with the United Kingdom tax authority.

Worked examples at 20%

Amount (GBP)Excluding VAT: + VAT =Including VAT: net
100120.0083.33
1,0001,200.00833.33
10,50012,600.008,750.00

Read a row as: GBP 10,500 excluding VAT is GBP 12,600.00 with it; the same figure including VAT is GBP 8,750.00 before it.

How United Kingdom VAT is calculated

Adding VAT: multiply the net price by 1.2. A GBP 100 item becomes GBP 120.00 once 20% VAT is added.

Removing VAT: divide the VAT-inclusive total by 1.2. From GBP 120.00 inclusive, the net is GBP 100 and the VAT portion is GBP 20.00.

The standard rate is 20%, but reduced or zero rates can apply to particular goods and services. For anything you file or charge, confirm the current rate and rules with the relevant United Kingdom tax authority.

United Kingdom VAT FAQ

How much is VAT in United Kingdom?
The standard VAT rate in United Kingdom is 20%. The other rates in use are 5% (reduced rate), 0% (zero rate). Which rate applies depends on the goods or service.
How do I add VAT to a price in United Kingdom?
Multiply the net amount by 1.2. For example, GBP 100 plus 20% VAT is GBP 120.00.
What fraction of a VAT-inclusive price is VAT?
1/6 of a VAT-inclusive price is VAT at 20% — for example GBP 120.00 inclusive contains GBP 20.00 of VAT. Multiply the inclusive price by 1/6 to get the VAT in one step.
How do I work out the VAT included in a price?
Divide the VAT-inclusive total by 1.2 to get the net amount; the difference is the VAT. For GBP 120.00 inclusive, the net is GBP 100 and the VAT is GBP 20.00.
Is the United Kingdom VAT calculator free?
Yes. The United Kingdom VAT calculator is free and runs entirely in your browser — no sign-up, nothing uploaded.