Free tool
UK VAT calculator
Add or remove UK VAT on an amount. The standard rate is 20%; reduced and zero rates depend on the supply. This handles the arithmetic only.
- Net
- £100.00
- VAT Tax
- £20.00
- Gross
- £120.00
Add tax multiplies net by 1 + rate. Remove tax divides gross by 1 + rate.
Use this for invoice and checkout maths. It does not decide whether you must register, collect, or file.
Common questions
Which UK VAT rate applies to my product?
Most goods and services use the 20% standard rate. Some categories use 5% or 0%, and the classification depends on the specific supply, which HMRC guidance or an adviser can confirm.
Do I need to charge UK VAT at all?
That depends on establishment, the £90,000 threshold for UK businesses, goods location and the £135 import rules, not on this calculator. The threshold calculator and the free self-check cover those questions.
The arithmetic is the last step. Whether you register and who collects the tax depends on channels, stock and imports, which the free self-check reviews market by market.
Start the free checkThis is a preliminary self-check, not tax advice. Decisions on registration, tax charging or collection, return filing and payment should be confirmed with a qualified professional. Questionnaire answers are used only to generate the result; see the Privacy Policy for details.