Whether a contract that is not stamped at the signature is invalid shall be determined based on the specific circumstances of the case. Generally speaking, as long as the contract represents the true intentions of both parties, the contract is valid. The absence of a seal is just a procedural matter, but the absence of a seal cannot negate the validity of the contract itself. Except where there are special instructions, for example, a contract without a seal is invalid or a contract without a company seal is not valid.

1. Is a contract that is not stamped at the signature not valid? When the parties sign a contract, as long as the contract is voluntarily negotiated by both parties and is an expression of the true intention of the parties, then it does not violate the relevant compulsory Under the premise of sexual provisions, the contract is valid. At this time, even if the contract is signed but not stamped, or stamped but not signed, the validity of the contract cannot be negated. In transaction activities, "signature and seal" is a basic requirement of many laws. If the parties conclude a contract in the form of a contract, the contract is established when both parties sign or seal it. "However, there are no regulations on what kind of seal should be stamped on the contract and how to stamp it. At the same time, the issue of contract sealing is mainly stipulated in the conclusion of the contract. It seems that whether the contract is stamped or not is only related to the establishment of the contract and has nothing to do with the establishment of the contract. The validity of the contract is irrelevant. In fact, the determination of the validity of the contract is based on the establishment of the contract. Therefore, the issue of contract sealing is directly related to the validity of the contract.

2. What are the conditions for the validity of the contract? The conditions include the following aspects: 1. The parties must have the corresponding capacity to enter into the contract. This is essentially a legal requirement for the qualifications of the contract subject. If the subject is not qualified, the contract cannot be concluded. Legal validity. There are two types of contract subjects: natural persons and non-natural persons. The main behavioral capacity of non-natural persons as contract subjects should be determined according to their civil capacity. 2. The intention of the parties to the contract is true. This is another requirement for the validity of the contract. The so-called true expression of intention means that the offers and commitments made by the parties during the contracting process are the expression of the actor's true will under normal circumstances. Will is consistent with its external performance. However, subjective or objective situations may occur. 3. The contract does not violate the law or social public interests. This is one of the production requirements of the contract. The most important one is that the contract lacks legality and has no room for redress, and can only be completely invalid. The contract violates the law and social public interests, which refers to both the purpose and content of the contract, that is, the purpose of the contract. and content must not violate the law or social public interests. The "law" mentioned here includes not only the mandatory provisions in existing laws, regulations and administrative regulations, but also the prohibitive and imperative provisions of national policies. When signing a contract, both parties are required to sign and seal it, but in fact some contracts only have the signature or seal of the parties, not both. Some people think that this will affect the validity of the contract, but in fact the law It does not require that the contract must be signed and sealed by the parties. In practice, a contract that only has a signature or seal can actually be deemed valid.