COG941020 | Supporting Guidance: business records checks: at the visit: VAT registered business: a VAT invoice
From HM Revenue & Customs · Compliance Operational Guidance
A VAT invoice is a term to describe an invoice which contains information required under VAT legislation.
A VAT invoice must contain the following information:
a sequential number, based on one or more series which uniquely identifies the document
the date on which the goods were delivered or the service was completed (time of supply)
invoice date
the name, address and VAT registration number of the business
the name and address of the customer
a description sufficient to identify the goods or services provided
for each description, the quantity of goods or the extent of the service
the net value of the supply, the VAT and the gross value of the supply.
A VAT invoice can be either in paper or electronic form.
A VAT registered business must issue a VAT invoice to its customers and keep a copy within the business records. The business must also keep copies of VAT invoices from its suppliers within the business records. Not only is the purchase or expense invoice a statutory record, it is essential that the invoice is kept to support any claim-back of the VAT paid (the input tax).