Legal analysis: 1, the first copy of the stub, the second copy of the payee's accounting voucher, and the third copy of the payer's payment voucher. If it is the current payment of the other company, a receipt should be issued to the payer. Because different receipts have different serial numbers, they are not fixed. It should be a payment voucher to the third payer of the other party and stamped.

2. The second payee's accounting voucher and the other party's payment receipt are used as the company's accounting voucher. Generally, these two receipts need to be stamped, and the receipts are generally marked with stamps. If the receipt is not marked, you can stamp it in the lower right corner or the lower left corner.

3. If it is a payment company, you don't need to issue a receipt to the other party, but the other party needs to issue a receipt to the company as a company payment voucher and a bank payment voucher as an accounting voucher.

Legal basis: Article 490 of the Civil Code of People's Republic of China (PRC). If the parties enter into a contract in the form of a contract, the contract shall be established when the parties sign, seal or press their fingerprints. 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.