Is co-employment legal in Vietnam?

Is co-employment legal in Vietnam? There is no co-employment statute in Vietnamese law, so co-employment is neither licensed nor expressly prohibited — it simply has nothing to attach to. The Labour Code is built around a single legal employer for each employment contract, and no instrument codifies the shared- or joint-employer relationship a United States professional employer organisation (PEO) relies on.1 As of October 2026, shared-employer liability in Vietnam is an untested legal argument, not a settled concept. This guide answers the question from primary law: what co-employment means, why it does not map onto Vietnamese law, the substance test that does apply, and what it means for a “PEO Vietnam” service.

What does co-employment mean in the US PEO model?

Co-employment is a feature of United States labour law, not a universal one. In a PEO arrangement the provider and client become co-employers of the same workforce: the PEO administers payroll, tax and benefits under its own registration, while the client stays the common-law employer that hires, directs and can dismiss the staff. The model works because the client is already a US employer with its own entity — the PEO takes over the administration but does not become the employer in its place. That is the opposite of the problem most companies hiring in Vietnam face: employing someone when they have no local entity at all.

Why does Vietnamese law have no co-employment concept?

The Labour Code recognises only two kinds of employment contract — indefinite-term and fixed-term (capped at 36 months) — and each runs between one employer and one employee.1 No Vietnamese statute creates a joint- or shared-employer status, so a PEO’s central mechanism, two companies employing one worker and splitting the duties, has nothing in the law to rest on. The structure of contracts, probation, notice and termination is set out under Vietnam’s labour law and employment contracts.

The nearest the law comes to placing a worker with more than one business is licensed labour sub-leasing (cho thuê lại lao động), or labour dispatch: a licensed company employs the worker and places them under a client’s direction while staying the legal employer (Labour Code 2019, Art. 52).1 Even here there is one employer, the licence-holder, not two, and placement is capped at 12 months per worker with the same client (Art. 53).1 Its limits are set out under labour outsourcing and dispatch in Vietnam.2

The substance test that does apply (Labour Code, Art. 13)

The one place Vietnamese law deliberately looks past the label is its substance test: it is the substance of an arrangement, not the title of the document, that counts, so any arrangement involving paid work, wages and one party directing or supervising the worker is treated as employment, whatever it is called (Labour Code 2019, Art. 13).1

That cuts two ways. A “PEO” or “co-employment” label cannot change who the law regards as the employer — the entity that pays for and directs the work is the employer. And the same reasoning is the root of the untested argument that a foreign client directing the worker like an employer could be drawn into employer obligations. The test is also the lawful backbone of the EOR model, because it fixes a single employer in fact; see whether an EOR is legal in Vietnam and the two lawful routes.

What this means for “PEO Vietnam” offerings

Because co-employment is not a legal category, a “PEO Vietnam” service is, in substance, one of two things — an employer of record (EOR), where a Vietnam-registered company becomes the single legal employer so you need no entity, or payroll and HR outsourcing on an entity you already run, where you stay the employer. The useful question is never what the product is called, but who signs the labour contract and who carries the liability. The full picture is under what a PEO in Vietnam really is, and the side-by-side under EOR versus PEO in Vietnam; the wider rules for employing people sit across our Vietnam employer guides.

The co-employment risk if an overseas client directs the worker

There is no co-employer status for a client to be placed into, but a related risk follows from the substance test: if an overseas client directs the worker the way an employer would, there is an argument — not settled in Vietnamese law — that employer liabilities could attach to the client as well as the EOR. As of October 2026 this is untested, so keep day-to-day direction with the legal employer and take advice.

Two adjacent exposures turn on the same facts. Tax presence: using an EOR does not by itself remove the risk that a foreign company is treated as having a permanent establishment in Vietnam, which depends on the facts and the relevant treaty — see permanent-establishment risk in Vietnam. Misclassification: if an engagement is really employment in substance, a labour inspector can treat it as such from the start, with back-dated social insurance of about 32% of gross (roughly 21.5% employer plus 10.5% employee), back personal income tax, interest and a tiered fine under Decree 283/2026/ND-CP (which replaced Decree 12/2022/ND-CP from 10 September 2026).34

How a compliant EOR keeps the legal-employer line clean

Because the risk turns on who looks like the employer, a well-run EOR is structured so there is only ever one. A Vietnam-registered entity directly employs the worker on an ordinary labour contract — running payroll, withholding personal income tax, paying the statutory insurance and trade-union fee, and registering the contract — and invoices the overseas client under a business-to-business service agreement. This is ordinary direct employment, not sub-leasing, so it is not bound by the 12-month cap; it is a structuring approach, not a special EOR law.1 In practice the formal employer powers — hiring, the signed contract, discipline and termination — sit with the EOR entity, while the client sets tasks, priorities and deadlines as any customer directs a service, without exercising the powers that would blur the single-employer line.

How EOR Vietnam handles co-employment risk

EOR Vietnam provides the employer-of-record service in Vietnam directly, with one legal employer by design. A Vietnam-registered entity becomes the single legal employer, signs the Labour Code contract, runs payroll in dong, pays the statutory insurance and the 2% trade-union fee, withholds personal income tax, and handles onboarding, offboarding and — for foreign hires — work-permit support, while you direct the work. Every written quote names the employing entity, so there is never a question of who the employer is.

Our service fee is a flat US$149 per employee per month for Vietnamese nationals — the same fee regardless of salary, role, location or headcount, as of October 2026; it is not a percentage of payroll. Foreign nationals who need a work permit are quoted separately. There are no setup, onboarding, offboarding, contract or payslip fees and no hidden fees; a refundable security deposit of two months’ employment cost (gross salary plus statutory employer contributions) is held for the engagement and returned at the end, less any unpaid amounts. Salary, the statutory contributions and any statutory or agreed payments are passed through at cost. If you already run a Vietnamese entity and only need payroll operated for you, we will say so — either way you can request a costed EOR Vietnam quote.