After the invoice is entered into the account, the manager, checker and leader should sign it. Don't write in the password area, as long as it doesn't affect the authentication. An invoice must have an invoice producer seal, which is an oval seal printed under the name of the invoice. And the number of the invoice and the number of the word track. If it is bookkeeping, it doesn't matter whether it is printing invoice deduction or bookkeeping. If it is unfortunately printed on the deduction voucher, please pay attention to the position of the handwriting. Except for these seven places, the invoice will not be affected: seller's name, tax number, buyer's name, tax number, password area, amount and seal.

The invoice is issued as follows:

1. When collecting money for selling goods, providing services and engaging in other business activities, an invoice shall be issued to the payer. Under special circumstances, the payer will issue an invoice to the payee;

2 invoices shall be issued in accordance with the prescribed time limit, sequence, column and time, and stamped with the special seal for unit invoices;

3, the use of computer to issue invoices, must be approved by the national tax authorities, and the use of off-site invoices under the unified supervision of the national tax authorities, and require the stub to be numbered and bound in sequence after issuing;

4. Invoices are only used by units and individuals who purchase and purchase goods in this city or county. Cross-city and county invoices shall be used;

5. When the contents of tax registration of billing units and individuals change, the procedures for changing invoices and invoice purchase books shall be handled accordingly; Before canceling the tax registration, the invoice receiving and purchasing book and invoice shall be handed in;

6, all units and individuals engaged in production and business operations, in the purchase of goods, services and other business activities to pay money, to the payee for invoices, shall not be required to change the name and amount;

7. Invoices that do not meet the requirements shall not be used as reimbursement vouchers, and any unit or individual has the right to refuse them;

8. Invoices shall be used within the validity period, and become invalid after expiration.

legal ground

Measures of People's Republic of China (PRC) Municipality on Invoice Management

Article 23 Invoices shall be issued column by column and at one time in accordance with the prescribed time limit and order, and stamped with financial seal or special invoice seal.

People's Republic of China (PRC) Civil Code

Article 490 Where the parties conclude a contract in the form of a contract, the contract is formed when the parties sign, seal or fingerprint it. Before signing, sealing or fingerprinting, one party has fulfilled its main obligations, and the contract is established when the other party accepts it. A contract shall be concluded in written form as stipulated by laws, administrative regulations or agreed by the parties. If the parties do not do this in writing, but one party has fulfilled its main obligations and the other party accepts it, the contract is established.