It is illegal for individual merchants to jump tickets for the first time. According to the Measures for the Administration of Invoices in People's Republic of China (PRC), it is not allowed to leave out the invoice number, and a fine of 10000 yuan will be imposed upon discovery.

Invoice refers to the business vouchers issued and collected by all units and individuals in buying and selling goods, providing or receiving services and engaging in other business activities. It is the original basis of accounting, and it is also an important basis for law enforcement inspection by audit institutions and tax authorities.