Electronic invoice is a product of the information age, the same as ordinary invoices, the use of tax bureaus unified form of issuance to the use of businessmen, invoice number using a unified national code, the use of a unified anti-counterfeiting technology assigned to the businessman.
The invoice refers to all units and individuals in the purchase and sale of goods, provide or receive services and engage in other business activities, issued and collected business vouchers, is the original basis for accounting, but also audit authorities, tax authorities, an important basis for law enforcement checks.