Key Takeaways
- Thailand’s five main entry structures are: representative office, branch office, Thai limited company, joint venture, and BOI-promoted company
- Each structure differs significantly in what activities are permitted — choosing the wrong one can create costly restructuring down the line
- Understanding the Foreign Business Act (FBA) and the BOI promotion regime are the two foundational pillars of Thai market entry planning
Introduction: Why Thailand?
Thailand remains one of ASEAN’s most established manufacturing hubs, with a deep concentration of Japanese companies in automotive, electronics, and consumer goods. Bangkok’s business ecosystem offers Japanese-language support infrastructure that few other Southeast Asian cities can match. Thailand’s EPA with Japan, together with BOI (Board of Investment) incentive programs for foreign investment, add further rationale for choosing Thailand as a regional base.
That said, “entering Thailand” is not a single decision — the choice of entry structure has significant downstream consequences for what your business can legally do, how it is taxed, and how easily it can be wound up if plans change. This 5-part series examines each structure from the perspective of a Japanese attorney familiar with both Japanese and Thai business law.
Overview of the Five Main Entry Structures
1. Representative Office
A representative office is an extension of the Japanese parent company — not an independent Thai entity. It cannot engage in revenue-generating activities. Permitted activities are limited to market research, information gathering, quality control support, and liaison functions with the parent. Setup procedures are relatively straightforward, making it a common first step for companies in the exploratory phase.
2. Branch Office
A branch is also legally part of the Japanese parent (not a separate entity), but may engage in certain revenue-generating activities that a representative office cannot. However, if the business activities fall within the regulated categories of the Foreign Business Act (FBA), a Foreign Business License (FBL) will be required. The parent company bears direct legal liability for branch operations.
3. Thai Limited Company (บริษัทจำกัด)
A Thai limited company is a separate legal entity incorporated under Thai law — structurally equivalent to a Japanese kabushiki kaisha. This is the most common structure for companies seeking to conduct substantive business in Thailand. Legal liability is contained within the Thai entity. Under the FBA, foreign-majority companies in regulated business categories generally require an FBL, unless an exemption (such as BOI promotion) applies.
4. Joint Venture
A joint venture involves establishing a company together with a Thai partner. In FBA-regulated industries, having a Thai party hold a majority stake can enable business activities that would otherwise require an FBL. Thai partners may also bring local networks, permits, and market knowledge that add value beyond the regulatory structuring.
5. BOI-Promoted Company
Companies receiving promotion from Thailand’s Board of Investment (BOI) may operate with 100% foreign ownership in eligible categories, and receive additional incentives including corporate income tax holidays and exemptions. Promoted categories span manufacturing, advanced technology, logistics, medical, and digital industries, among others.
Comparison Table
| Item | Representative Office | Branch Office | Thai Limited Company | Joint Venture | BOI-Promoted Company |
|---|---|---|---|---|---|
| Revenue activities | Not permitted | Limited | Permitted | Permitted | Permitted |
| Legal independence | None (part of parent) | None (part of parent) | Yes | Yes | Yes |
| 100% foreign ownership | — | Subject to FBA | Subject to FBA | Difficult in regulated sectors | Permitted in promoted categories |
| Ease of establishment | ◎ | ○ | ○ | △ | △〜✕ |
| Estimated setup time | 2–3 months | 3–4 months | 2–3 months | 2–4 months | 4–9+ months |
| Taxation (overview) | Generally none | Tax on remittance to parent | 20% CIT | 20% CIT | Tax holidays available |
| Ease of dissolution | ◎ | ○ | △ | △〜✕ | △ |
These are general indicators only; individual circumstances vary.
Choosing a Structure: Key Considerations
By Business Objective
| Objective | Structures Worth Considering |
|---|---|
| Market research and intelligence gathering | Representative Office |
| Full-scale sales or manufacturing operations | Thai Limited Company or BOI |
| FBA-regulated industry requiring Thai majority | Joint Venture |
| Manufacturing or advanced tech with tax incentives | BOI-Promoted Company |
| Short-term or project-based work | Branch Office (limited cases) |
Checking the Foreign Business Act (FBA)
Thailand’s Foreign Business Act B.E. 2542 restricts foreign-majority companies from entering certain business categories (Annexes 1–3). Determining whether your intended activities fall within a restricted category is a necessary first step before deciding on a structure. This topic is examined in detail in Part 3 of this series.
Assessing BOI Eligibility
Manufacturing, agriculture, logistics, medical, and digital sectors have relatively broad BOI coverage. BOI promotion is not exclusively for large corporations — companies of various sizes can qualify depending on the activity category and investment scale.
Common Misconceptions Among Japanese Companies
”We’ll Start with a Representative Office and See How It Goes”
Starting with a representative office is understandable, but if revenue-generating activities are conducted through a structure that is prohibited from doing so, legal and tax exposure can arise. When the company later transitions to a Thai limited company, a separate incorporation process is required — meaning the total cost may exceed what it would have been to incorporate directly from the outset.
Relying on Nominee Shareholders
To circumvent FBA restrictions, some structures have historically used Thai nominees — individuals who hold shares on paper without beneficial ownership. Thai authorities treat this as illegal, and enforcement has tightened in recent years. Lawful alternatives (BOI promotion, genuine joint ventures, or FBL applications) are the appropriate path.
Summary
The optimal entry structure for Thailand depends on your business purpose, investment scale, the FBA classification of your intended activities, and BOI eligibility. Selecting the wrong structure can result in legal risk or costly restructuring — both of which are avoidable with proper upfront planning.
Next in this series — Part 2: “Representative Offices and Branch Offices in Thailand | What They Can and Cannot Do, and How to Set Them Up”
For questions on Thailand market entry structures, please feel free to contact us using the form below. Thai law matters are handled in coordination with JTJB International Lawyers’ Thai-qualified attorneys.
This article is for general informational purposes about Thailand’s legal system and does not constitute legal advice under Thai law. For specific matters, please consult a Thai-qualified legal professional. Our firm works in collaboration with JTJB International Lawyers’ Thai-qualified attorneys.