Is it illegal for social security to link with other companies?

Legal analysis: it is not illegal to link social security with other companies. The employing unit shall pay social insurance for the laborer after establishing labor relations with him. In the form of social security, there is actually no labor relationship between individuals and agencies. Employers must pay social security fees for employees, which is a mandatory obligation of employers, but it does not prohibit employers from paying social security fees for employees who are not in their own units. This behavior does not harm the interests of the state and the third party. Workers and enterprises create conditions that meet the requirements of paying social insurance premiums and do not harm the interests of others.

Legal basis: Article 10 of the Social Insurance Law of People's Republic of China (PRC), employees shall participate in the basic old-age insurance, and the employer and employees shall jointly pay the basic old-age insurance premium. Individual industrial and commercial households without employees, part-time employees who have not participated in the basic old-age insurance in the employer and other flexible employees can participate in the basic old-age insurance, and individuals pay the basic old-age insurance premium. The measures for the endowment insurance of civil servants and staff managed by reference to the Civil Service Law shall be formulated by the State Council.