Is it illegal for enterprises not to pay social security, and what penalties will they be subject to?

It is illegal for a company not to buy social insurance for its employees. The employer shall be fined between one and three times the amount of social insurance premiums payable, and the directly responsible person in charge and other directly responsible personnel shall be fined between 500 yuan and 3,000 yuan. According to Article 58 of the Social Insurance Law, the employing unit shall handle the social insurance registration for employees within 30 days from the date of employment. If the social insurance has not been registered, the social insurance agency shall verify the social insurance premium it should pay. Eighty-fourth employers do not apply for social insurance registration, the social insurance administrative department shall order them to make corrections within a time limit; If no correction is made within the time limit, the employer shall be fined between one and three times the amount of social insurance premiums payable, and the directly responsible person in charge and other directly responsible personnel shall be fined between 500 yuan and 3,000 yuan. Article 86 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 5/10000 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.