Instructions on how to handle cases of duplicate social insurance contributions

Reader N.T. H asked: "I am working at a company, signing a labor contract (LC) from 2023. Due to personal reasons, in May 2026, I went to work and signed a LC with another company. I have informed the second company that I am paying social insurance (SI) elsewhere. However, currently, the second company is still paying the same SI for me.

I have contacted but the company does not cooperate in carrying out procedures to reduce social insurance duplication. So how should I handle it to request the company to carry out this procedure? The second company where I work is in the My Dinh area, Hanoi".

The Hanoi City Center for Communication, Data and Digital Technology requests the following information:

Point a, Clause 5, Article 2 of the 2024 Law on Social Insurance stipulates:

Article 2. Participants in compulsory social insurance and voluntary social insurance

...

People who simultaneously belong to multiple subjects participating in different compulsory social insurance specified in Clause 1 of this Article, the participation in compulsory social insurance is regulated as follows:

a) Subjects specified in points a and l, clause 1 of this Article who conclude labor contracts with multiple employers shall participate in compulsory social insurance under the first concluded labor contract.

In case the labor contract being used as a basis for participating in compulsory social insurance is temporarily suspended from the performance of the contract and the two parties do not have an agreement on paying compulsory social insurance during the suspension period, they shall participate in compulsory social insurance in accordance with the term of validity of the signed contract;

Clause 1.4, Article 21 of Consolidated Document No. 2525/VBHN-BHXH of Vietnam Social Security promulgating the process of collecting social insurance, health insurance, unemployment insurance, occupational accident and disease insurance (OCC), stipulates:

1.4. In case the employee concludes a labor contract with multiple employers, the employer must pay labor accident and occupational accident benefits according to each signed labor contract if the employee is subject to compulsory social insurance.

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