VAT tool
VAT Calculator
Add VAT to a net price or remove VAT from a gross price using common UK VAT rates. This is useful for quotes, invoices, supplier checks, and quick business price sanity checks.
VAT calculation tool
Switch between adding VAT to a net price and removing VAT from a gross price.
Net amount
£100.00
VAT amount
£20.00
Gross amount
£120.00
Quick notes
- • Use it to switch quickly between net, VAT, and gross values.
- • Helpful for quotes, invoices, supplier pricing, and back-checking totals.
- • Always confirm unusual VAT treatment, exemptions, or reduced rates separately.
Need more context?
How VAT calculations work
Learn the difference between net, VAT, and gross prices in plain English.
Read guideWhat this calculator helps you do
Add VAT to a net price
Useful when you have a base price and need to show the VAT-inclusive total on a quote or invoice.
Remove VAT from a gross price
Helpful when a price already includes VAT and you want to see the underlying net amount clearly.
Check numbers before you send them
A quick sense-check can stop avoidable pricing mistakes before a client, customer, or supplier sees them.
Worked examples
Example 1: adding VAT to a net price
If your net price is £100 and you add 20% VAT, the VAT amount is £20 and the gross price is £120.
This is the kind of check that is useful when preparing customer quotes or confirming what should appear on an invoice.
Example 2: removing VAT from a gross price
If a total price is £120 including 20% VAT, the VAT portion is £20 and the net price is £100.
This is useful when you are given a VAT-inclusive figure and need to understand the pre-VAT value for planning or margin checks.
Common mistakes to avoid
- Mixing up net and gross prices.
- Treating a VAT-inclusive number as though VAT still needs to be added on top.
- Copying the number but dropping the label, which makes it easy to forget whether the figure includes VAT.
- Assuming every item or service uses the same VAT treatment.
Who this is for
- Sole traders checking quotes and invoices.
- Freelancers pricing work for VAT-registered clients.
- Small businesses comparing supplier and customer pricing.
- Anyone who wants a fast VAT sense-check without using a spreadsheet.
Quick tip
Keep the words net, VAT, and gross attached to the figure whenever you copy it into a quote, invoice, or pricing note. That simple habit prevents a lot of avoidable mistakes.
Keep learning or grab the starter pack
Read the guide for a clearer explanation of VAT maths, or open the free starter pack for quick-reference pricing support.