Free VAT tool
Add VAT to a net price or work out the VAT inside a gross price, at the standard, reduced or zero rate — and see roughly where your turnover sits against the registration threshold. It is a quick estimate, not financial or tax advice.
The price before VAT is added.
Standard for most goods and services.
Example: £100 net at the 20% rate — change the figures above to match yours.
VAT at 20% (estimate)
£20.00
estimated VAT added
Net (ex-VAT)
£100.00
Before VAT
VAT @ 20%
£20.00
Estimated VAT amount
Gross (inc-VAT)
£120.00
Including VAT
What this means
Adding VAT at 20% to a net price of £100.00 gives roughly £20.00 of VAT, for an estimated gross (VAT-inclusive) total of about £120.00. These are rounded estimates to sanity-check against — confirm the exact figures for your own situation.
This is an estimate to help with your numbers — not financial or tax advice, and not a guarantee of any VAT liability. Based on 2026/27 VAT rates — check HMRC, as rates and rules change. VAT applies UK-wide.
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Enter your rolling 12-month taxable turnover to see roughly where you sit against the VAT registration threshold. Informational only.
Not financial or tax advice. This calculator gives rounded estimates only and is not a guarantee of any VAT liability. Based on 2026/27 VAT rates — check HMRC, as rates and rules change. VAT is UK-wide. The tool applies a single rate to the whole amount and does not handle VAT-exempt or out-of-scope supplies, mixed-rate baskets, or the Flat Rate, margin or second-hand schemes. The turnover check uses the compulsory rolling 12-month registration threshold only and is informational — check your own position with HMRC or an accountant.