Can two units pay social security for one person at the same time?

Legal analysis: you can work in two companies, but you can't pay social security in two companies at the same time. You can only choose to pay social security in one of them. Matters needing attention for the company to buy social security for employees: 1. If the applicant can't find the photos in the system when applying for the card, or the photos are of poor quality or wrong, it can be solved by providing the electronic version of the photos. 2. After obtaining the social security card, the applicant must bring the valid ID card to the counter of the bank outlet to activate the financial function and set the password to ensure the normal payment of the social security benefits of the cardholder. I can't be present due to physical inconvenience, and my relatives can contact the social security card service bank for personalized services such as on-site verification. 3. If the cardholder's social security card is lost or damaged and needs to be reissued, whether the service bank is changed or not, in order to ensure the safety and smoothness of the financial account, the financial function of the card must be reported. 4. After the cardholder reissues the social security card, if the original social security card and the new social security card account bank are different, the balance of the original social security card cannot be transferred to the new social security card account. The insured person needs to go to the nearest township labor and social security service center to issue the Notice of Loss Reporting and Cancellation of Social Security Card, and bring his valid ID card to the designated outlet of the original social security card service bank for handling. 5. If an individual cardholder is worried about the loss or theft of the card because he can't find it temporarily, he can apply for the loss report of the social security card through the nearest street labor security service center to avoid accidents such as the loss or theft of the card.

Legal basis: Article 58 of the Social Insurance Law of People's Republic of China (PRC) stipulates that the employer shall apply to the social insurance agency for 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. Employees-free individual industrial and commercial households who voluntarily participate in social insurance, part-time employees who do not participate in social insurance in the employing unit and other flexible employees shall apply to the social insurance agency for social insurance registration. The state establishes a national unified personal social security number. Personal social security number is a citizen's identity number.