What is the main cost of social security?

Social security includes endowment insurance, medical insurance, unemployment insurance, maternity insurance and industrial injury insurance.

Legal basis:

"Social Insurance Law" Article 61 A social insurance premium collection agency shall collect social insurance premiums in full and on time according to law, and regularly inform employers and individuals of the payment. Article 62 of the Social Insurance Law, if the employer fails to declare the amount of social insurance premiums that should be paid according to the regulations, the amount that should be paid shall be determined according to 1 10% of the amount paid by the employer last month; After the payment unit completes the declaration procedures, the social insurance fee collection agency shall make settlement in accordance with the provisions. Article 86 of the Social Insurance Law, if an employer fails to pay social insurance premiums in full and on time, the social insurance premium collection agency shall order it to pay within a time limit or make up for it, and from the date of default, an overdue fine of 0.5% shall be added daily; Failing to pay within the time limit, the relevant administrative departments shall impose a fine of more than one time and less than three times the amount owed.