A tax payment certificate is a tax payment certificate issued by the tax authority to prove that the taxpayer has paid taxes. Due to my country's tax system, it is divided into national tax payment vouchers and local tax payment vouchers, both of which are used to prove that tax obligations have been completed. The most common ones are "General Tax Payment Certificate of the People's Republic of China and the State Taxation", "General Payment Certificate of the People's Republic of China and the State Taxation", etc.

Invoices refer to the business vouchers issued and collected by all units and individuals when purchasing and selling goods, providing or receiving services, and engaging in other business activities. They are the original basis for accounting and are also used by auditing and tax authorities. An important basis for law enforcement inspections. Receipts are proof of receipt and payment. Invoices can only prove that the business has occurred, but cannot prove whether the money has been received or paid.