VAT Number
A VAT number is a unique identification number that is provided to every business that registers for VAT. It is required when making payments of VAT to HMRC and for other official identification purposes. It must also be shown on invoices submitted by VAT registered businesses.
A VAT number, which is unrelated to a Unique Taxpayer Reference or a Company Registration Number, is commonly referred to as a 'VAT registration number' or a 'VRN'.