How to handle the social security paid by the original unit to the new unit?

Legal analysis: the procedure of transferring social security to a new unit is as follows: first, the insured person applies to the social security bureau of the insured place to move out and print the social insurance payment voucher; Then apply for transfer to the social security bureau of the current insured place with the social insurance payment certificate. If the insured place agrees to accept it, a letter of acceptance will be issued and the social security relationship will be merged. At this time, social security has been transferred to the new unit.

Legal basis: Measures for the Administration of Personal Rights and Interests Records of Social Insurance in People's Republic of China (PRC) Article 10 When the insured person transfers employment due to social insurance, the social insurance agency in the newly insured place shall receive and manage the personal rights and interests records of social insurance in time; The social insurance agency of the original insured place shall keep the original records for future reference after transferring the records of individual rights and interests of social insurance.