On what date does social security increase or decrease personnel every month?

The monthly fee reduction time for social security is from the beginning of each month to 15. Attention should be paid to the following points: the increase or decrease of employees' insured personnel should go through the formalities at the old-age insurance center on the first day of each month 15. To reduce the number of insured persons, it is necessary to carry ID cards and proof materials to terminate labor relations. The unit fills in the change form and goes through the formalities in the lobby of the district endowment insurance center. Social security staff reduction and staff increase means that a unit or company adds a person who pays social security in its social security system, which means that the number of people increases, and reducing and removing a person who no longer pays social security for it means that the number of people decreases.

Generally, social security reduction and exemption will be handled within 0/5 days at the beginning of the month. And the general effective time is next month. Social security attrition includes conditions such as reaching retirement age and dissolving labor relations. However, the reduction of social security will continue to be deducted in the month, and the increase of social security will be deducted from next month.

What materials do new employees need to join social security?

1. Original or photocopy of the ID card of the employed person;

2. Unemployed workers must provide the original of the Unemployment Certificate or the Manual of Labor and Social Security;

3, "employment registration roster" in duplicate (unemployed workers in triplicate);

4. Registration form for employees;

5. Labor contract;

6. Electronic file of labor contract information management report;

7. One-inch photo.

To sum up, the reduction of social security workers should go through the relevant procedures at the beginning of each month 15 days, and the general effective time is next month.

Legal basis:

Article 58 of People's Republic of China (PRC) Social Insurance Law

The employing unit shall, within 30 days from the date of employment, apply to the social insurance agency for social insurance registration for its employees. If the social insurance has not been registered, the social insurance agency shall verify the social insurance premium it should pay.

Employees-free individual industrial and commercial households who voluntarily participate in social insurance, part-time employees who do not participate in social insurance in the employing unit and other flexible employees shall apply to the social insurance agency for social insurance registration.

The state establishes a national unified personal social security number. Personal social security number is a citizen's identity number.