How to handle the payment of social security in Chengdu by myself?

Generally, my salary income in the previous year is the base of payment:

If the wage income of employees is higher than 300% of the local average wage of employees in the previous year, 300% of the local average wage of employees in the previous year shall be the payment base;

If the wage income of employees is lower than 60% of the local average wage of employees in the previous year, 60% of the local average wage of employees in the previous year shall be the base of payment;

If the wages of employees are between 300% and 60%, they shall be declared according to the facts. When the wage income of employees cannot be determined, the payment base shall be determined according to the local average wage of employees in the previous year published by the local labor administrative department;

Social security will regularly check the base every year (March or July, in different places), and declare a new base according to the average monthly salary of employees in the previous year. It is necessary to prepare proof of these payroll.

Legal basis:

Detailed Rules for the Implementation of the Measures for the Basic Medical Insurance for Urban Employees Article 7 If the payment base of the basic medical insurance premium for employees in a unit is lower than 60% of the average monthly salary of employees in Chengdu last year, 60% shall be the payment base, 300% shall be the payment base, and the payment base shall be calculated to RMB.

For those who have gone through retirement formalities at the statutory retirement age and no longer pay the basic medical insurance premium according to the regulations, if the basic old-age insurance premium is 300% higher than the average monthly salary of employees in Chengdu in the previous year, it will be included in the personal account as the personal account base according to the average monthly salary of employees in Chengdu in the previous year.