Electronic invoice is the product of the information age. Like ordinary invoices, they are distributed to merchants in the form of unified issuance by the tax bureau. The invoice number is distributed to merchants with national unified coding and unified anti-counterfeiting technology. The signature mechanism of the electronic tax bureau is attached to the electronic invoice.

Invoice is not only a voucher for reimbursement, but also a voucher for consumers to safeguard their own rights and interests. If there is a problem with the quality of the goods you buy or the services you receive, and there is no invoice, then you will lose the important evidence to solve the problem or claim.