United Kingdom Sales Tax / VAT Calculator
Add or strip United Kingdom sales tax or VAT at 20% and see the tax, the net price and the tax share of the gross.
About United Kingdom Sales Tax / VAT Calculator
Tax is applied to the net price, so the gross is the net multiplied by one plus the rate. Note that tax as a share of the gross is always lower than the headline rate — 20% on net is 16.67% of gross, which is the figure to use when working backwards from a tax-inclusive price. United Kingdom. Quoting the wrong side of a tax-inclusive price is one of the most common invoicing errors, and it compounds across every line of an order.
Formula
United Kingdom Sales Tax / VAT
Tax = net price × rate ÷ 100; gross = net + tax
- net price
- Price before tax is applied
- rate
- Statutory tax rate as a percentage
Frequently Asked Questions
How is United Kingdom Sales Tax / VAT calculated?
Tax = net price × rate ÷ 100; gross = net + tax Tax is applied to the net price, so the gross is the net multiplied by one plus the rate. Note that tax as a share of the gross is always lower than the headline rate — 20% on net is 16.67% of gross, which is the figure to use when working backwards from a tax-inclusive price.
Why does United Kingdom Sales Tax / VAT matter?
United Kingdom. Quoting the wrong side of a tax-inclusive price is one of the most common invoicing errors, and it compounds across every line of an order.
What values do I need to enter?
This calculator takes 3 inputs: Price before tax, United Kingdom VAT or sales tax rate, Quantity. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.
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United Kingdom specifics
- Currency
- £ GBPBritish Pound
- Region
- Europe
- Country code
- GB
- Amounts look like
- £1,234,567.89
- Dates look like
- 9 Mar 2026
- Units
- metricWeek starts Monday
Results on this page are expressed in GBP (British Pound). Figures are estimates for general planning — confirm current rates and thresholds with the relevant United Kingdom authority before relying on them.
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