What is the use of property invoices?

1, which is to let the collection service party pay taxes.

2. However, if there is a problem with the product or other commodities and the distributor is needed, the invoice is the only proof. 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. Receipt is the proof of receipt and payment, and invoice can only prove that the business has happened, but can't prove whether the money has been received or paid.