About us
UK VAT Calculator is a free online tool that adds VAT to a net price or removes VAT from a gross price at the UK standard 20%, reduced 5% or zero 0% rate, or any custom rate. It runs entirely in your browser and stores no personal data; the only third-party service used is Google Analytics for anonymous visit statistics.
What is UK VAT Calculator?
UK VAT Calculator is a simple tool for working out VAT in the UK. Add VAT to a net price, or remove VAT from a gross price, and see the net, VAT and gross amounts instantly. You can use the standard 20%, reduced 5% or zero 0% rate, or type any rate you need. There is no sign up and no account.
How does the VAT calculator work?
The calculator uses the standard UK VAT formulas. All maths runs in your browser.
- Add VAT: multiply the net amount by (1 + rate ÷ 100). At 20%, that is × 1.20.
- Remove VAT: divide the gross amount by (1 + rate ÷ 100). At 20%, that is ÷ 1.20.
- Rates: 20% standard, 5% reduced (for example home energy and child car seats) and 0% zero (for example most food and books).
How accurate are the results?
Figures are rounded to the nearest penny and are estimates only. VAT rules have exceptions, so always confirm the correct treatment with HMRC or a qualified accountant before relying on any result. See the calculator for a quick VAT reference table.
Is my data private?
Yes. Every calculation happens locally in your browser and your numbers are never sent anywhere. Read the privacy policy for details.
Frequently asked questions
Does UK VAT Calculator cost anything?
No. The calculator is completely free to use. There is no sign up, no account and no payment.
Does UK VAT Calculator store my numbers?
No. Every calculation runs in your browser. The amounts and rates you enter are never sent to us or stored on a server.
Can I rely on the results for my tax return?
The results are estimates. Use them as a guide, but confirm the correct VAT treatment with HMRC or a qualified accountant before filing.