UK VAT Calculator
Quickly add VAT to a net amount or remove VAT from a gross amount using a simple UK VAT calculator.
This tool performs VAT arithmetic only. It does not determine the correct VAT treatment, registration requirement, scheme, invoicing treatment or recoverability for a transaction.
Last reviewed: 12 July 2026. Review methodology
Add or remove VAT at 20%, 5%, or 0% instantly. Enter an amount and choose whether to add VAT to a net price or extract VAT from a gross price.
Net Amount
£1,000.00
excl. VAT
VAT Amount
£200.00
at 20%
Gross Amount
£1,200.00
incl. VAT
How this was calculated
20% of £1,000.00 = £200.00 VAT. The gross total is £1,200.00.
Official sources
Rates and thresholds are checked against the following primary sources. Review dates are shown on the relevant guide or methodology page.
Last reviewed: 12 July 2026
Frequently Asked Questions
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