A foreign company can be present in Thailand in three broadly different ways, and the differences are not administrative flavours of the same thing. They differ on what you may earn, who is liable, and what you can build.
The decision is usually made in an afternoon, on the basis of which one sounds simplest. It is then very difficult to reverse.
The three forms
Representative office. A non-trading presence that serves its foreign parent. It may support the parent's business — sourcing, quality inspection, market reporting, providing information about the parent's products — but it may not earn revenue in Thailand. It is funded by the parent.
Branch. The foreign company itself, operating in Thailand. It can trade, subject to the licensing that applies to its activity. Critically, it is not a separate legal person: what the branch owes, the parent owes.
Subsidiary. A Thai company with its own legal personality, owned by the parent. It trades in its own name, on its own balance sheet, and its foreign ownership position is assessed under the framework covered in the complete guide to foreign investment in Thailand.
What actually separates them
| Rep office | Branch | Subsidiary | |
|---|---|---|---|
| Can earn Thai revenue | No | Yes | Yes |
| Separate legal person | No | No | Yes |
| Parent exposed to Thai liabilities | Limited by scope | Directly | Through its shareholding |
| Own accounts and audit in Thailand | Yes | Yes | Yes |
| Can take on local partners or investors | No | No | Yes |
| Practical ceiling on growth | Low by design | Medium | High |
The row that decides most cases is "can earn Thai revenue". The row that decides the worst cases is "parent exposed to Thai liabilities".
The failure mode of each
The representative office that started selling. Set up for liaison because it was simpler. Six months later the two staff are quoting prices and negotiating terms, because that is what the business needed. The evidence sits in the office's own email and files.
The branch chosen to avoid incorporating. It looked like less paperwork. Then a dispute arose in Thailand and the counterparty's claim ran against the parent company directly, not against a Thai entity with a defined balance sheet.
The subsidiary set up without planning the shareholding. Incorporated quickly to start trading, with a shareholding shape that has to be unwound before the first real investor will come in. See the complete guide to foreign investment in Thailand.
Questions that settle the decision
- Will anyone here take money from a Thai customer within twelve months? If yes, a representative office is the wrong vehicle.
- Would a Thai claim against this operation be tolerable against the parent's balance sheet? If no, a branch is the wrong vehicle.
- Will we take on a local partner or outside investment? If yes, only a subsidiary supports it.
- How many foreign people will this need in year two? Ask before the structure is chosen, not after.
- What licences does the actual activity require? The vehicle does not remove licensing; it changes who holds it.
Whichever you choose
All three carry Thai accounting, audit and filing obligations from the moment they exist — see accounting and tax compliance. None of them are dormant-friendly, and none of the obligations wait for the business to start trading.
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If you are deciding how to enter the Thai market, talk to our team before the entity is registered rather than after.