Can the base of social security be changed?

Hello, dear ~ I'm glad to answer your question! The social security base can be changed. According to the survey, it is 1. If the social security base has been submitted successfully after declaration, it cannot be modified online. 2. The social security base of employees should be based on the salary in the first month of employment or the average salary of individuals in the previous year. Social security personnel can go to the social security department of the unit to modify the base. The materials to be submitted are: (1) employee social security base declaration form (revised).