1. The agreement signed by husband and wife in private has legal effect. As long as the meaning of both husband and wife is true; The agreement does not violate the mandatory provisions of laws and administrative regulations and public order and good customs, and both husband and wife have full capacity for civil conduct. After the signing of the agreement, it is confirmed by both parties that the agreement has legal effect.

2. Legal basis: Civil Code of People's Republic of China (PRC).

Article 143 A civil juristic act that meets the following conditions is valid:

(1) The actor has corresponding capacity for civil conduct;

(2) the meaning is true;

(three) does not violate the mandatory provisions of laws and administrative regulations, and does not violate public order and good customs.

Article 144 A civil juristic act performed by a person without capacity for civil conduct is invalid.

2. Is the agreement on property signed by husband and wife valid after marriage?

1. The notarization of marital property agreement can be applied by unmarried couples before marriage, or by both husband and wife during the marriage relationship. To apply for notarization of this agreement, both parties must jointly apply to the notary office.

2. The notarization of the marital property agreement shall be under the jurisdiction of the notary office at the domicile of both parties or the place where the agreement is signed. When handling the marital property agreement, the applicant's identity certificate shall be submitted, and the married person shall also submit a marriage certificate; The draft agreement, the parties have difficulty in writing, the notary can write; Relevant property certificates; Other materials that the notary believes should be submitted. Notarization of marital property agreement refers to the activities of notarization institutions to prove the authenticity and legality of the agreement reached by husband and wife or unmarried men and women on the scope and ownership of their respective pre-marital property (or post-marital property) and debts.

If the agreement signed by husband and wife is to be legally effective, it needs to be signed on the basis of mutual consent. In addition, the contents of the agreement cannot violate the relevant provisions of the law and the interests of third parties. I hope the above content can help you. If you have any other questions, please click the button below to consult a professional lawyer.