Electronic invoicing, also known as e-invoicing, is the method by which all business-to-business transactions that include sales, credit notes, and debit notes for companies, including exporters of all types, are posted for verification in the IRP or invoice registration portal.

Upon verification, IRP will come up with a unique IRN (invoice reference number) for each invoice. This IRN has to be opted for QR code along with other invoice details and to be printed on the face of the invoice for its validity. An e-invoice can also be referred to as electronic invoice, which is a standardised document that is sent from the supplier to the buyer and is verified by the official fiscal portal.

E-Invoice works within the automatic process to enhance values of business operations, minimise errors and facilitate companies in following the rules and regulation of electronic Documents.