Shanghai tax does not correspond to social security.

There is no difference between personal social security and unit social security, but there is a difference in the amount of payment.

According to the wages of employees, the proportion of units and individuals is generally:

Endowment insurance units bear 20% and individuals bear 8%;

8% for medical insurance units and 2% for individuals;

Unemployment insurance unit 2%, individual1%;

Maternity insurance shall be borne by the unit at 0.7%;

0.5 to 1.6% of work-related injury insurance is also borne by the unit.

Note: Individual employees do not undertake maternity and work-related injury insurance. Provinces and cities bear different proportions.

Further reading: How to buy insurance, which is good, and teach you how to avoid these "pits" of insurance.