Is it illegal to pay social security for local work in different places?

Legal analysis: not illegal. For everyone, social security is the only identification object with ID card. When you retire, you can only choose one place to retire. For those who repeatedly pay social security, the social security fees paid in one place after retirement in another place will be refunded.

Legal basis: Article 4 of People's Republic of China (PRC) Social Insurance Law. Employers and individuals in People's Republic of China (PRC) pay social insurance premiums according to law, and have the right to inquire about payment records and personal rights records, and require social insurance agencies to provide social insurance consultation and other related services.

Individuals enjoy social insurance benefits according to law and have the right to supervise the payment of their own units.