Equal subjects sign agreements and contracts on the basis of legality, fairness and equality. When signing an agreement, the parties will generally sign the agreement and press their fingerprints. According to the law, fingerprinting has the same legal effect as signature or seal, so the contract signed by both parties is valid after fingerprinting by both parties.

Necessary conditions for private contracts to take effect according to handprint contracts:

1, autographed. In order to be effective, the signing of an individual contract must be confirmed by both parties. After signing, it means that both parties agree with the terms and contents of the contract.

2. Write down the date. The signing of individual contracts must also be dated by both parties. If the signed contract is not dated, the effective date of this contract cannot be determined. Therefore, if you want the contract to take effect, you must write down the specific time when the contract was signed;

3. Press the fingerprint. Individual signing must also be signed by both parties. Fingerprinting refers to pressing the fingerprint on the signature name, which is a reconfirmation of the signature behavior and also to prevent the signature from being forged, because the fingerprint is unique, and once pressed, it is unique.

To sum up, signing a contract privately will take effect as long as it meets the conditions for the contract to take effect. The parties have corresponding capacity for civil rights and capacity for civil conduct, and enjoy the right to voluntarily conclude a contract according to law. The content of the contract does not violate the law, and there is no situation in which the contract is invalid as stipulated by law. The contract is legal and valid.

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.