HM Revenue & Customs

Why are VAT registration numbers rejecting?

If your customer's VAT registration number has been rejected please check the EU country codes and customer VAT number format to ensure it is in the correct format for the relevant Member State.

You can check the validity of VAT numbers for new customers or verify their name and address is correct. To do this follow the link to VAT number validation or you can contact the VAT Helpline on 0845 010 9000.

If you have been advised by HM Revenue and Customs that a customer's registration number is invalid then you must not continue to use it to zero rate supplies to that customer.