Is the social security base pre-tax salary or after-tax salary?

Legal analysis: the payment base of five insurances and one gold is pre-tax salary. The social security base is calculated according to the pre-tax salary. Social insurance deduction is paid before tax.

Legal basis: People's Republic of China (PRC) Social Insurance Law.

Article 12 The employing unit shall pay the basic old-age insurance premium according to the proportion of the total wages of employees stipulated by the state and record it in the basic old-age insurance pooling fund.

Employees shall pay the basic old-age insurance premium in accordance with the proportion of wages stipulated by the state and record it in their personal accounts.

Individual industrial and commercial households without employees, part-time employees who have not participated in the basic old-age insurance in the employing unit and other flexible employees who have participated in the basic old-age insurance shall pay the basic old-age insurance premiums in accordance with state regulations and record them in the basic old-age insurance pooling fund and individual accounts respectively.

Twenty-third employees should participate in the basic medical insurance for employees, and employers and employees should pay the basic medical insurance premiums in accordance with state regulations.

Individual industrial and commercial households without employees, part-time employees who have not participated in the basic medical insurance for employees and other flexible employees can participate in the basic medical insurance for employees, and individuals pay the basic medical insurance premium in accordance with state regulations.

Article 35 The employing unit shall pay the work-related injury insurance premium according to the total wages of employees and the rate determined by the social insurance agency.

Forty-fourth employees should participate in unemployment insurance, and employers and employees should pay unemployment insurance premiums in accordance with state regulations.

Fifty-third employees should participate in maternity insurance, the employer should pay maternity insurance premiums in accordance with state regulations, and employees do not pay maternity insurance premiums.