1, social security payment base: social security payment base refers to the salary base used by enterprises or employees to calculate and pay social insurance premiums. This base multiplied by the prescribed rate is the amount of social insurance premiums that enterprises or individuals should pay.

Local social security payment bases are linked to local average wage data. It is determined according to the average monthly wage income of employees from June 1 day to February 1 day in the previous year. Once a year, it will not change within one year after confirmation. The time to apply for adjusting the social security base is generally in July.

2. Payment ratio: payment ratio, that is, the collection rate of social insurance premiums. China's "Social Insurance Law" does not make specific and clear provisions on the collection rate of social insurance. According to China's current social insurance policy, we implement different collection ratios for different types of social insurance.

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Social insurance refers to the system that the state establishes a social insurance fund through legislation to give necessary material help to workers who participate in labor relations when they lose their ability to work or are unemployed. Social insurance is not for profit.

Social insurance is mainly through raising social insurance funds, coordinating and adjusting social insurance funds within a certain range, and giving necessary help to workers when they encounter labor risks. Social insurance provides basic living security for workers. Workers can enjoy social insurance benefits as long as they meet the conditions for enjoying social insurance, that is, they have established labor relations with employers or paid various social insurance premiums according to regulations. Social insurance is the core content of social security system.