An FDI company audits its personnel files and discovers that three foreign specialists have worked for two years without ever being registered for compulsory social insurance: the previous HR team assumed foreigners on contracts under one year, or on intra-company assignment, were outside the scheme, but nobody rechecked when the contracts were renewed into a second year. When the social insurance agency inspects, the question is no longer whether contributions were due but how much will be collected in arrears, how late-payment interest runs, and who internally must explain. This is the most common social insurance dispute with foreign staff: a dispute about who falls inside the mandatory scope.
The legal framework: the current regime is the 2024 Social Insurance Law and Decree No. 158/2025
Compulsory social insurance for foreign nationals working in Vietnam is now governed by the Law on Social Insurance No. 41/2024/QH15, effective from 1 July 2025, together with Decree No. 158/2025/ND-CP on compulsory social insurance for foreign employees. Decree No. 158/2025/ND-CP replaced Decree No. 143/2018/ND-CP from 1 July 2025; any compliance review today must be run against these two new instruments, not against Decree No. 143/2018/ND-CP as if it were current law, an error many internal HR handbooks still carry.
Under the current framework, a foreign employee working in Vietnam under a labour contract with a Vietnamese employer and holding a work permit or equivalent document falls within compulsory social insurance, with sickness, maternity, occupational accident and disease, retirement and survivorship regimes subject to statutory conditions. Cases outside the mandatory scope are defined by the law and the decree according to the nature of the employment relationship and the form of assignment, for example persons who do not work under a labour contract with a Vietnamese enterprise. Contributions are split between employer and employee at statutory rates on the salary fund used as the contribution base, and the employer carries the duty to register, declare and remit through the social insurance agency.
Applying the framework: why disputes erupt over scope and contribution base
The first dispute is about scope: the company treats a specialist as parent-company assignee under an appointment letter, while the insurance agency reads the labour contract signed with the Vietnamese entity and concludes the person is mandatorily covered. What decides the question is the substance of the actual employment relationship and the assignment papers, not the label the company chose in its files. The second dispute is about the contribution base: the declared insurable salary sits far below actual income because of a layered expatriate package, local salary, housing allowance, school fees, so arrears on inspection become large.
Consequences of non-payment or underpayment include collection of the full arrears for the violation period, late-payment interest, and administrative penalties in the social insurance and labour fields under Decree No. 283/2026/ND-CP, which replaced Decree No. 12/2022/ND-CP from 10 September 2026. On the employee side, missing contribution time interrupts sickness and pension entitlements, and the lump-sum social insurance withdrawal on leaving Vietnam becomes complicated. Sound governance means auditing coverage whenever a foreign contract is signed or renewed, stating the insurable salary expressly in the contract, and approaching the insurance agency to self-correct before an inspection, because voluntary remediation is always cheaper than arrears plus interest plus fines.
Social insurance compliance checklist for foreign employees
- Review every foreign employee across three paper layers: the labour contract with the Vietnamese entity, the parent’s assignment letter, and work-permit status.
- Test each case against the mandatory scope in the Law on Social Insurance No. 41/2024/QH15 and Decree No. 158/2025/ND-CP, recording an internal conclusion per person.
- Check the contribution base: which salary and allowance items enter the insurable salary fund, and whether they reconcile with payroll and personal income tax filings.
- Set automatic reminders at contract renewal and work-permit renewal dates to re-test mandatory coverage, because obligations often change at those points.
- Where underpayment is found, file supplementary declarations and engage the local insurance agency proactively instead of waiting for an inspection conclusion.
Frequently Asked Questions
Must foreigners working in Vietnam pay social insurance?
Yes, where they work under a labour contract with an employer in Vietnam and hold a work permit or equivalent legal document, under the Law on Social Insurance No. 41/2024/QH15 and Decree No. 158/2025/ND-CP. The duty applies regardless of nationality or salary level, and the employer must register, declare and organize payment. The older assumption that foreign employees are generally outside compulsory insurance no longer holds under the current framework.
Who is exempt from social insurance contributions?
Outside the mandatory scope are persons who do not form a labour-contract relationship with a Vietnamese enterprise, for example specialists assigned by the parent company to perform work without signing a labour contract with the local entity, and other cases the law and Decree No. 158/2025/ND-CP define as non-mandatory. Each case must be tested on its own documents; an employer may not stretch the notion of intra-company transfer to exempt someone who has in fact signed a Vietnamese labour contract.
How much are social insurance contributions for foreign staff?
Contributions comprise an employer part and an employee part, calculated at statutory rates on the salary fund used as the social insurance base under the Law on Social Insurance No. 41/2024/QH15 and Decree No. 158/2025/ND-CP, across the sickness and maternity, occupational accident and disease, and retirement and survivorship funds. Because fund-by-fund rates and base rules are technical details set by guiding instruments, obtain written confirmation from the local insurance agency for each period rather than relying on an outdated internal rate table.
What is the penalty for not insuring foreign employees?
The employer faces three layers at once: collection of all arrears for the violation period, late-payment interest under the social insurance law, and administrative fines in the social insurance and labour fields under Decree No. 283/2026/ND-CP, which replaced Decree No. 12/2022/ND-CP from 10 September 2026. The exact fine depends on headcount affected and the length of evasion, but in practice arrears plus interest usually dwarf the fine itself, so the real cost of the violation is the restored obligation, not just the penalty decision.
This article has been quality-reviewed by the FLAW AI Legal Council
