1. According to the relevant regulations, the proportion of quality guarantee deposit shall not be higher than 3% of the total price of the project. The bond amount of the contractual bond shall also not be higher than 3% of the total amount of the settlement of the project price. Therefore, the best quality assurance deposit payment ratio is not higher than 3%, within a reasonable range of 3%, according to their own needs to determine. If more than 3%, it is a violation of the mandatory provisions of the law is invalid;
2, quality warranty is the contractor and the contractor in the construction contract agreed in the construction project completion and acceptance and delivery of the building works, from the contractor payable to the amount of the project to reserve a certain percentage of the amount of money used to repair the quality of the construction works of the quality defects, mainly for the purpose of guaranteeing the completion of the acceptance of the quality problem. The contractor shall reserve a security deposit in the manner agreed in the contract, and the total percentage of the security deposit reserved shall not be higher than 3% of the total amount of the settlement of the project price. If the contract agrees that the contractor shall replace the reserved deposit with a bank guarantee, the amount of the guarantee shall not be higher than 3% of the total amount of the settlement of the project price.
Legal basis:
Article 8 of the Regulations on Quality Management of Construction Projects
Construction units shall, in accordance with the law, carry out bidding for the survey, design, construction, supervision and procurement of important equipment and materials related to construction projects.
Article 9
Construction units must provide the original information related to the construction project to the relevant units of investigation, design, construction and supervision of the project.
The original information must be true, accurate and complete.