Can I get a work permit because I own the company?

Ownership and permission to work are separate questions in Thailand, and this catches almost every first-time founder. Holding shares does not itself entitle you to work; a work permit is granted for a position at an entity that can support it, and the entity has to satisfy the requirements attached to that route. It is entirely possible to own a Thai company lawfully and still have no permission to perform work for it — which is why the shareholding and the work permission should be planned in the same conversation.

How many foreign staff can our company support?

For an ordinary Thai company the capacity is a function of the company itself — its registered capital and the ratio of Thai employees to each foreigner employed — rather than something negotiated case by case. Promoted projects are assessed differently, against positions approved for the project. The practical consequence is that headcount planning belongs at incorporation: a company capitalised for its first year cannot support the team its second year needs without changing the company.

Does BOI promotion make visas and work permits easier?

Materially, for the promoted project. Positions for foreign specialists are approved against the project rather than assessed on the general company requirements, and the process runs through a faster channel. Two limits are worth stating plainly: the advantage applies to the promoted activity, and it is tied to the promotion, so it shares the fate of the project's compliance position.

We only want a small presence first. Is a representative office enough?

It depends entirely on what the person will do. A representative office is limited to non-trading activities — liaison, sourcing, quality inspection, reporting to the parent — and cannot earn revenue in Thailand. Where those limits genuinely describe the work, it is a legitimate and lighter option that supports foreign staff. Where the person will actually sell, contract or deliver services, the office is the wrong vehicle, and the mismatch is visible in the company's own records.

Can our engineer come and work while the company is being set up?

Not lawfully on the basis that registration is in progress. Permission to work is granted to a person for a position at an entity that exists and qualifies; there is no interim status conferred by an application in flight. This is the single most common compliance failure in a start-up phase, because the work is real, the pressure is real, and the paperwork is not there yet. It needs planning into the incorporation timetable rather than being handled afterwards.

Can our foreign staff bring their families?

Generally yes — dependants of someone holding an appropriate long-stay status can usually obtain dependent status of their own. It is worth confirming as part of a hiring package rather than assuming, particularly where school terms drive the timing, because the dependant's position follows the principal's and is affected by anything that disturbs it.

What happens to the work permits if we restructure or the person changes role?

A work permit is tied to a position at an entity, so changes to either can require action. Moving a person to a different company in the same group, changing what they do, or restructuring the entity itself are all events that need to be handled prospectively. Restructures are usually planned around tax and shareholding, and the people are remembered late — which is how a group ends up with staff whose permission no longer matches what they do.

Which Visa and Work Permit Your Thai Structure Actually Buys You

Ownership and permission to work are different questions

Foreign founders consistently plan their Thai entry in one order — activity, ownership, capital — and discover the immigration consequences afterwards. In Thailand, owning a company and being permitted to work for it are separate matters, decided under different rules.

The structure you choose does not merely affect tax and ownership. It sets a ceiling on how many foreign people you can bring, into which roles, and how quickly. That ceiling is difficult to raise later without changing the entity itself.

This guide maps structures to what they support. For how the visa and work permit system fits together in general — categories, extensions, reporting obligations and how overstay is fixed — see the Thailand visa and work permit guide.

1. Three things must line up

For a foreign person to work lawfully in Thailand, three things have to be true at once:

the person holds the appropriate status to be in the country for that purpose
the entity is one that can support the position and satisfies what that route requires
the position is one the person is permitted to perform, at that entity

Founders tend to hold one of the three and assume the rest follow. They do not. A shareholder with no position, a position at an entity that cannot support it, or a person doing work outside what was permitted are three different failures with the same root.

2. The ordinary Thai company

The default vehicle, and the one most foreign businesses actually need.

Capacity here is a function of the company: its registered capital and the ratio of Thai employees maintained for each foreign employee. The figures are set out in the visa and work permit guide; the planning point is what they imply.

Capacity is structural, not negotiated. There is no case-by-case argument that substitutes for the company meeting the requirement.
It is planned at incorporation. A company capitalised for a first-year test cannot support a second-year team without changing the company, and changing it is a project.
Some occupations are closed to foreigners entirely, regardless of the company.

The failure pattern is a founder who incorporates lean to keep costs down, then finds that the two specialists the business now needs cannot be supported by the entity that was built for one.

3. The promoted project

Where the activity qualifies for investment promotion, foreign positions on the promoted project are approved against the project rather than assessed on the general company requirements, and they run through a faster channel.

This is a genuine operational advantage for a project bringing in technical people. Two boundaries matter:

it applies to the promoted activity, not to everything the company might also do
it is tied to the promotion, so it depends on the project's compliance position — see living with promotion after approval

4. The branch and the representative office

A representative office is limited to non-trading activities for its foreign parent — liaison, sourcing, quality control, market reporting. It cannot earn revenue in Thailand. Within those limits it is a legitimate, lighter presence that can support foreign staff.

The failure is always the same one: the office is chosen because it is simpler, and then the person actually sells, negotiates or delivers services. The mismatch appears in the entity's own records — contracts, invoices, correspondence — and it is not a technicality when it is examined.

A branch trades in Thailand as part of the foreign company rather than as a separate Thai entity. It is a substantive choice with its own licensing, liability and tax consequences, and it is not a shortcut to headcount.

5. The routes that attach to the person

Some long-stay routes are granted on the individual's own qualifications, investment or income rather than through an employer. They matter to founders in two situations: while an entity is being built, and where a senior person's presence is not tied to a single company.

They are not a substitute for an entity that can support its team. Treat them as complementary — a route for a specific individual — and check current eligibility at the time, because the conditions in this area move more than the rest of the framework.

6. Sequencing: the mistake that is hardest to unwind

The compliance failure we are asked about most often in the start-up phase is people working before the framework exists — an engineer commissioning equipment, a founder meeting customers, a manager hiring staff, all while registration is in progress.

There is no interim permission conferred by an application in flight. The exposure lands on both the individual and the company, and it is discovered later, when a first work permit application or an inspection reads the history backwards.

The fix is planning rather than paperwork: the incorporation timetable and the arrival timetable are one timetable, and the first foreign arrival date is a project milestone with a dependency on the entity being ready.

7. Restructuring remembers the people last

Group restructures are planned around tax, shareholding and financing. Work permits are tied to a position at an entity, so moving people between group companies, changing what they do, or reorganising the entity are all events that need handling prospectively.

Where a restructure is on the table, the question "what happens to everyone's permission on the day this takes effect" belongs in the first planning meeting, not in the implementation checklist.

Summary

Structure	What it supports	Where it fails
Ordinary Thai company	Capacity set by capital and the Thai-employee ratio	Capitalised for year one; cannot support the year-two team
Promoted project	Positions approved against the project, faster channel	Limited to the promoted activity; follows the project's compliance
Representative office	Non-trading roles for a foreign parent	The person actually trades; the records show it
Branch	Trading presence of the foreign company	Treated as a shortcut to headcount; it is not
Individual routes	A specific person's own position	Used as a substitute for an entity that can support a team

Decide how many foreign people this business needs in year two, then choose the entity. Doing it in the other order is what makes the constraint expensive.

We plan entity structure, work permits and visas together for foreign investors entering Thailand. Initial consultation is free — call +66 92 254 2045 or send us the details. See also visa and work permit services and the complete guide to foreign investment in Thailand.

This guide is published by Suwanvara Law Firm — a Khon Kaen law firm established in 1986. General information only, not legal advice on a specific matter.