What is the effectiveness of the down payment contract signed by only one party? 1. The house purchase contract signed by one spouse is completely valid. Because both husband and wife have property, they have equal right to dispose of * *. 2. Article 1062 of the Civil Code (202 1. 1 came into force) stipulates that the following property acquired by husband and wife during the marriage relationship shall be owned by both husband and wife: (1) salary and bonus; (2) Income from production and operation; (3) Income from intellectual property rights; (4) Inherited or donated property, except as provided for in Item 3 of Article 18 of this Law; (five) other property that should be owned by * * *. Husband and wife have equal rights to dispose of all property. 3. The provision that "husband or wife have equal rights to dispose of all the property of husband and wife" should be understood as: (1) husband or wife have equal rights to dispose of the property of husband and wife. Due to daily needs, either party has the right to decide whether the husband and wife have joint property. (2) If one of the spouses makes an important decision on the common property of the husband and wife due to the needs of daily life, the husband and wife shall reach an agreement through equal consultation. Others have reason to believe that it was expressed by both husband and wife, and the other party shall not oppose a bona fide third party on the grounds of disagreement or ignorance. 4. If one party sells the house jointly owned by husband and wife without the consent of the other party, the third party buys it in good faith, pays a reasonable consideration and goes through the formalities of property right registration, and the other party claims to take back the house, the people's court will not support it. If one spouse arbitrarily disposes of the house jointly owned by * * * and * *, causing losses to the other spouse, and the other spouse requests compensation for the losses during the divorce, the people's court shall support it. The signing of the deposit contract means that their rights and interests have been protected by law, so the specific issues must be clear. On the other hand, even if the contract is signed unilaterally, because the legal rights and interests of both husband and wife are equal in law, as long as it is in line with their own interests, the parties will complete it.