Enter a UK VAT number you want to check, it’s 9 or 12 numbers, sometimes with ‘GB’ at the start, like 123456789 or GB123456789.
Enter your own UK VAT number
We need this to give you a reference number.
This is a free service that connects to HMRC to validate a UK VAT number and check the name and address of the business the number is registered to. If you are a UK VAT registered business, you can also use this service to prove when you checked a UK VAT number. You will need your own VAT number to do this.
If you need to validate more than one number at a time Bulk VAT Validator might suit your needs, or if you are developer take a look at VAT API