Calculate VAT clearly before it affects your numbers.
Add VAT, remove VAT, calculate the VAT element, and understand VAT-inclusive or VAT-exclusive amounts using common UK VAT rates.
Use it when you need a quick VAT calculation.
This calculator is designed for simple VAT calculations. It does not decide whether VAT applies to a specific item, service, scheme or transaction.
Calculate VAT amount, net amount and gross amount.
Enter the amount, choose whether VAT should be added or removed, then select the VAT rate.
Your calculation
Use this for quick VAT estimates. For complex VAT questions, mixed supplies, partial exemption, flat rate scheme or sector-specific rates, speak to an adviser.
Your result
Based on adding VAT to £100.00 at 20%.
The standard UK VAT rate is currently 20%, with reduced and zero rates applying to certain goods and services. The correct VAT treatment depends on the type of supply and the circumstances. This calculator gives a numerical estimate only and is not VAT advice.
If you add VAT
Adding VAT means you start with the net price and calculate the VAT amount to add on top. For example, if the net price is £100 and VAT is 20%, the VAT amount is £20 and the gross total is £120.
If you remove VAT
Removing VAT means you start with the gross price and work backwards to find the net amount and VAT element. At 20%, the VAT element inside a VAT-inclusive price is calculated as gross amount × 20 ÷ 120.
Useful VAT and tax tools to try next.
Want a VAT readiness checklist?
Use the calculator for quick numbers, then download a checklist to help you think through VAT registration, record-keeping and filing readiness.
Quick questions before using the VAT Calculator.
Need help understanding your VAT position?
The calculator gives a useful number. A proper conversation helps you understand what that number means for your pricing, records, VAT registration and cash flow.
Calculate the VAT, then understand what it means for the business.
VAT affects more than the invoice total. It can affect pricing, record-keeping, cash flow and filing obligations.