As we all know, social insurance funds determine the source of funds according to the types of insurance, and gradually implement social pooling. Employers and workers must participate in social insurance and pay social insurance premiums according to law. 1. What is the proportion of individual social security contributions in Shanghai, 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. The percentage of unit and individual contributions to the total social security fund is called social security contribution ratio, which consists of individual contributions and unit contributions. The amount of social security contributions varies from region to region, and the base is based on the total wages. Because the payment base and compensation base of the five major social insurance types, such as pension, work injury, medical care, maternity and unemployment, are linked to the average salary of employees on the job last year, the increase of the average salary level will bring about the adjustment of various social insurance types. The percentage of unit and individual contributions to the total social security fund is called social security contribution ratio, which consists of individual contributions and unit contributions. The amount of social security contributions varies from region to region, and the base is based on the total wages.