Limited company, branch or representative office in Thailand

01First, are you going to earn revenue in Thailand?

This one question settles half the answer.

• You need to sign contracts, issue invoices and take payment in Thailand — then realistically it is a limited company or a branch.
• You only do liaison, market research, quality control or procurement coordination, and earn nothing — a representative office may be enough, but its permitted activities are a closed list, and going beyond that list is operating in breach.

The mistake we see most often runs like this. A group sets up a representative office to test the water. A few months later the business picks up, an invoice has to be issued, and only then does it emerge that the entity cannot do it. A company has to be set up from scratch and the registration and licensing run again. The time and money spent up to that point is mostly gone.

02What actually differs between the three

These are not three variations on one theme. What separates them:

• Private limited company. The mainstream form in Thailand and the default for manufacturing investment. A separate legal person with limited liability. It can apply for promoted status, and it can act as the importer, exporter and taxpayer of record. Capital increases, adding activities and share transfers all have well-worn routes. Whether foreign shareholding is capped depends on whether the business falls inside the restricted list for foreign business.
• Branch. An extension of the head office in Thailand, and not a separate legal person — that is the point that matters, because the parent carries the branch's liabilities. A branch is normally treated straight away as a foreigner doing business, and has to obtain the corresponding permission under the foreign business restriction rules. For tax it is taxed on its Thailand income, and remittance of profit is dealt with separately. It suits certain project-based work. It is a poor default for a long-term presence.
• Representative office. No revenue, no commercial contracts, permitted activities on a closed list. It produces no business income, but it still carries employment, filing and compliance obligations. It fits a stage where the function genuinely is liaison and support only.

One more that deserves a question of its own. If your group is considering placing regional management, procurement or shared-service functions in Thailand, the rules that apply are not quite those of any of the three above, and the relevant policy has been shifting in recent years. Assess that arrangement separately rather than carrying over ordinary limited-company assumptions.

03The choice is tied to two other decisions

Entity type cannot be picked in isolation. Two other decisions pull on it.

• Whether the business falls inside the restricted list for foreign business. The list runs in three tiers, with entirely different entry conditions and levels of approval. Manufacturing generally sits outside it. Services and trading have to be checked activity by activity — see whether your business falls inside the restricted list.
• Whether you go the investment promotion route. Promoted status can, on certain conditions, lift some of the ordinary restrictions on foreign investment (see whether a wholly foreign-owned manufacturing project can still apply for BOI), and it also shapes which activities you can carry on and how land can be arranged. So the order is: decide on promotion first, then fix the entity type. Not the reverse.

04Expatriate headcount belongs in the entity decision

The thresholds for employing foreign staff are not the same across the three forms. Ordinary companies are generally constrained by conditions such as registered capital and the ratio of local employees; promoted companies use a separate and more generous channel. If your plan includes sending a few engineers from head office to sit on site long-term, that belongs in the entity-choice stage — not in the week after registration, when the people are ready to travel and the quota turns out to be short.

05How to decide

The practical order is:

• State plainly what the business will do in Thailand over the next two to three years, whether it earns revenue, and at what scale.
• Check whether that business touches the restricted list for foreign business.
• Decide whether to go for investment promotion, and in what direction.
• From those answers, fix the entity type, registered capital and shareholding structure.
• Registration, then the licences that follow.

Each step feeds the next. Run it backwards and rework is close to certain.

Which form fits your business, whether there is list risk, whether the headcount quota is enough — all of it has to be checked item by item against your actual business description, investment size and staffing plan. Done before registration, that check costs very little. Done after, it means amending the articles of association, or setting up a new entity altogether.