Can social security be bought by two companies at the same time?

Social security cannot be paid by two companies for one worker at the same time. If a party has two social security relationships, it shall go through the formalities of social security merger. "Social Insurance Law" stipulates that if an individual is employed across the overall planning area, his basic endowment insurance relationship will be transferred accordingly, and the payment period will be calculated cumulatively.

Legal objectivity:

Article 19 of the Social Insurance Law of People's Republic of China (PRC) * * * If an individual is employed across the overall planning area, his basic old-age insurance relationship will be transferred accordingly, and the payment period will be calculated cumulatively. When an individual reaches the statutory retirement age, the basic pension is calculated in stages and distributed uniformly. Specific measures shall be formulated by the State Council. People's Republic of China (PRC) Social Insurance Law Article 20 The State establishes and perfects a new rural social endowment insurance system. The new rural social endowment insurance combines individual contributions, collective subsidies and government subsidies.