Hami catering invoices are issued by tax authorities. Individual catering operators shall apply to the tax authorities for receiving and purchasing invoices. Apply to the tax authorities for issuing VAT invoices. The application report shall specify the name of the unit and individual, the industry and economic type, the type, name and quantity of the invoice, etc. It should be stated and stamped with the official seal of the unit and the seal of the agent. At the same time, provide the identity certificate of the agent, the relevant certificates of tax registration certificate and the impression of the special seal of financial seal invoice, and issue the invoice purchase book after being audited by the competent tax authorities. Collect and purchase invoices from the competent tax authorities according to the types and quantities of invoices approved in the invoice collection and purchase book.