The purpose of signing is to prove the facts so that you can be held accountable if problems are discovered in the future. Signing on the back is a neat requirement, and the approver usually signs on the front. The payment stamp stamped by the cashier is to prove that the money has been paid, to prevent double payment, and to prevent someone from stealing the reimbursed receipt and reimbursing it again. Many units require a reimbursement form to be affixed to the invoice, and the reimbursement form must be signed. The reimbursement form is for easy binding and a beautiful voucher.

Are there any rules for signing on invoices?

There are rules for signing on invoices. The specific rules are as follows:

1. The drawer of the bank draft must be named on the bill. The signature and seal shall be the special seal for bank draft approved by the People's Bank of China plus the signature or seal of its legal representative or its authorized handler. The signature and seal used when a bank accepts a commercial bill, handles rediscounting or rediscounting of a commercial bill, shall be the special seal approved for use by the People's Bank of China for that bank's bill plus the signature or seal of its legal representative or its authorized handler. The signature and seal of the drawer of a cashier's check on the note shall be the special seal approved for use by the People's Bank of China plus the signature or seal of his legal representative or his authorized handler;

2. The unit’s signature on the bill should be the unit’s special financial seal or official seal plus the signature or seal of its legal representative or its authorized agent;

3. Check For the signatures of the drawer and the acceptor of the commercial acceptance bill on the bill, the bank's signature should be reserved for them.

As can be seen from the above, a signature is required at the end of the reimbursement invoice to prove the facts, so that if any problems are discovered in the future, the person responsible can be held accountable.

Legal basis:

"The Negotiable Instrument Law of the People's Republic of China"

Article 3

The negotiable instrument activities shall comply with the law , administrative regulations and shall not harm the interests of the public.

Article 4

When making a bill, the drawer of the bill shall sign and seal the bill in accordance with the legal conditions, and bear the responsibility for the bill according to the matters recorded.

To exercise the rights of the bill, the holder shall sign and seal the bill in accordance with legal procedures and present the bill.

If other bill debtors sign and seal the bill, they shall bear the bill liability according to the matters recorded on the bill.

The term “rights on a bill” as used in this Law refers to the right of the holder to request payment of the amount of the bill from the debtor of the bill, including the right to request payment and the right of recourse.