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SUWANVARA LAWFIRM
Suwanvara Law Firm Co., Ltd.
SUWANVARA LAWFIRM
SUWANVARA LAWFIRM
Suwanvara Law Firm Co., Ltd.
Foreign Investment

Your First Thai Hire: What the Relationship Obliges You to Do From Day One

Foreign parents plan the entity and the visas, then hire a first employee as though it were an administrative step. Thai employment obligations attach immediately, and the ones that cost money later are the ones nobody set up at the start.

by Legal Advisory TeamAugust 22, 20263 min read
Your First Thai Hire: What the Relationship Obliges You to Do From Day One

A foreign parent will spend weeks on the entity, the licence and the visas, then hire the first Thai employee in an afternoon — an offer by email, a start date, salary agreed in a phone call.

Thai employment obligations attach from the start of the relationship. The ones that cost real money later are almost always the ones nobody set up on day one.

What starts immediately

  • Statutory protections apply, written contract or not
  • Employer registration and social security registration, within the period the law allows
  • Monthly obligations begin: withholding on pay, contributions remitted, records kept
  • Working time, rest days and public holidays are governed by law, not by what the parent company does elsewhere
  • Accumulated service starts running, and it drives entitlements later

None of this waits for the business to be profitable, and none of it scales with headcount. It applies at one employee exactly as at fifty.

The contractor shortcut, and why it fails

The most common first move is to engage the person as a contractor. It looks simpler, avoids registrations, and feels reversible.

What governs is the substance of the relationship, not the label. Set hours, direction and control, your equipment, integration into your operation, regular payment — those point to employment regardless of the document.

If it is later treated as employment:

  • obligations apply retrospectively, with back-payments and penalties
  • service is treated as continuous from the real start date
  • the company argues from a weak position, because its own documents were drafted to describe something else

Where the person genuinely is an independent supplier — own business, own clients, own tools, own risk — a contractor arrangement is legitimate. Where they are your first employee wearing a different label, it is a liability being accumulated quietly.

Set these up before the first payday

  1. Written employment contract in Thai — role, duties, place of work, hours, pay and payment date, probation terms if any
  2. Employer and social security registration, with the employee registered on time
  3. Payroll withholding configured correctly from the first run, not corrected later
  4. Time and pay records kept from day one; these are what the labour inspector examines
  5. A leave policy in writing, even informally, so practice does not harden into an entitlement nobody chose
  6. Work rules, mandatory above a specified headcount and useful well before that

What foreign parents typically get wrong

Applying the group's home-country handbook to Thai staff, including notice, leave and dismissal provisions that do not match Thai law. Where the group's terms are more generous they become the standard you must keep; where they are less generous they are unenforceable.

Assuming probation is a free trial. It is not. A person on probation is an employee, with notice obligations and the same protection against unfair dismissal.

Letting practice become policy. A discretionary bonus paid three years running, an informal extra day of leave — repeated practice can harden into a term of employment.

Running payroll from headquarters without Thai-basis records, so the first inspection or dispute has nothing local to examine.

Waiting until headcount grows to build the file. The cost of setting this up properly at one employee is a fraction of reconstructing it at twenty.

📌 See more: labour law services · business law services

If you are about to make your first hire in Thailand, or suspect that a long-standing contractor arrangement is really employment, talk to our team.

Frequently asked questions

Can we engage the first person as a contractor to keep it simple?+

You can write a contractor agreement, but what governs is the substance of the relationship rather than the label on it. Where a person works set hours, under direction, using your equipment, integrated into your operation and paid regularly, the arrangement carries the hallmarks of employment whatever the document says. If it is later treated as employment, the obligations apply retrospectively — social security registration, statutory entitlements and accrued service — and the company is arguing from a weak position because its own paperwork was designed to say something else.

Does a Thai employee need a written contract?+

Statutory protections apply whether or not anything is written, so the practical answer is that the contract protects the employer more than the employee. Without a written record of role, duties, hours, pay, and the terms of any probation, disputes are resolved on what can be proved, and an employer with no documents is the party that cannot prove anything. Write it, in Thai, and keep a signed copy.

What has to be registered before the first payroll run?+

The company must be registered as an employer and the employee registered for social security within the period the law allows, with contributions withheld and remitted monthly. Payroll withholding obligations start at the same time. These are calendar obligations that begin with the first employee, not once headcount reaches some threshold, and missing them creates back-payments plus penalties rather than a warning.

When do we need written work rules?+

Once headcount reaches the number the law specifies, written work rules in Thai become mandatory and must be published to staff. Below that number they are not required, but they are still the document that resolves disciplinary and dismissal disputes, so most employers benefit from having them well before they are obliged to. Putting them in place while the team is small is far easier than introducing rules that reduce anything staff already enjoy.

Can we dismiss during the probation period without consequences?+

Thai law has no probation status that suspends employment protection. A person on probation is an employee, so notice obligations apply and the dismissal can still be challenged as unfair if the reason does not hold up. What changes with time is accumulated service, which drives certain entitlements. Employers who assume probation is a free trial period are the ones who find that out at the labour office.

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