1. The contract is valid if it is signed by the entrusted agent of the unit within the scope of its authorization or the legal representative of the unit.

2. If the signed entrusted agent has no power of attorney, exceeds the power of attorney or signs a contract after the power of attorney is terminated, the signed contract is valid after ratification by the principal.

3. Without ratification, the contract is invalid and the actor shall bear civil liability. Knowing that someone else has committed a civil act in my name without denying it is regarded as consent.

4. If there are clear terms in the agreement that will take effect after being sealed, but only the legal representative signs it without official seal, then the agreement has no legal effect.

5. Without such clauses that come into effect after being sealed, the agreement can come into effect without the signatures and official seals of the legal representatives of both parties, and it is legally binding.

Special requirements for the entry into force of a contract: refers to the conditions that a contract must have special requirements in addition to the general requirements before it can take effect. The special entry-into-force requirements of contracts are only the special requirements for the entry-into-force of some contracts stipulated by laws and administrative regulations, and are not universal;

There are five situations in which the contract is invalid, and the legal representative does not affix the official seal of the company to the contract, which is not one of them. Therefore, the legal representative signed the contract without the official seal of the company, and the contract is valid. Although only the contract signed by the legal person without the official seal is valid, it is recommended to affix the official seal of the company in daily economic exchanges.

Therefore, if you want to know whether a contract signed without an official seal has legal effect, you can analyze it according to the above answer. I hope today's sharing will help you!

Legal basis:

civil law

Article 502

A legally established contract shall come into force upon its establishment, except as otherwise provided by law or agreed by the parties. In accordance with the provisions of laws and administrative regulations, if the contract should go through the approval procedures, such provisions shall prevail.

If the failure to go through the formalities such as approval affects the effectiveness of the contract, it will not affect the performance of the obligation clauses such as approval and the effectiveness of relevant clauses in the contract. If the party that should go through the formalities for approval fails to perform its obligations, the other party may require it to bear the responsibility for violating its obligations.

The modification, assignment and dissolution of a contract shall be subject to the provisions of laws and administrative regulations, and the provisions of the preceding paragraph shall apply and shall be subject to approval.