Registering a company in Thailand as a foreign investor is achievable, but the process is regulated in ways that catch most first-time investors off guard. Thailand’s Foreign Business Act (FBA) restricts foreign ownership in many sectors to 49%, requires specific documentation from Thai shareholders under new 2026 rules, and the entire registration process moved to a mandatory digital platform in January 2026.
This guide explains every step of the company registration process in Thailand for foreign investors, covering the main business structures available, the documentation required, realistic costs and timelines, and the critical regulatory changes that came into effect in 2026.
Whether you are setting up a joint venture with a Thai partner, pursuing BOI promotion for full foreign ownership, or qualifying under the US-Thai Treaty of Amity, the process starts in the same place: the Department of Business Development (DBD).
1. Key Facts at a Glance
| Key Fact | Detail |
| Minimum shareholders | 3 (at time of registration) only 2 |
| Minimum directors | 1 |
| Minimum capital (general) | THB 2 million per foreign work permit holder, if not hiring foreigners the limit is 1 share per shareholder at a value of minimum THB, if hiring foreigners 2,000,000 |
| Foreign ownership limit (general) | 49% under the Foreign Business Act (FBA) unless eligible to a Foreign Business License or BOI promotion |
| Full foreign ownership routes | BOI promotion, US-Thai Treaty of Amity, FBL |
| Registration authority | Department of Business Development (DBD) |
| Registration platform (2026) | DBD Biz Regist, fully digital, remote-capable |
| Typical timeline | 2–4 weeks from promoters’ meeting to certificate |
| Key law | Civil and Commercial Code (CCC); Foreign Business Act B.E. 2542 |
2. Who Can Register a Company in Thailand?
Any foreign individual or foreign corporation can be a shareholder in a Thai company, subject to sector restrictions under the Foreign Business Act. There is no nationality restriction on who may participate in a Thai company, the restrictions apply to the level of foreign ownership and the type of business activity, not to nationality per se.
Foreign investors face three main scenarios:
- You own less than 50% of the company (minority foreign shareholder). This is the most common structure, a Thai-majority company with foreign minority participation. No FBL required, but sector restrictions still apply.
- You want to own 50% or more (majority or full foreign ownership). This requires either BOI promotion, a Foreign Business Licence (FBL), or qualification under a bilateral treaty such as the US-Thai Treaty of Amity.
- You are a US national or US-incorporated company. The Treaty of Amity allows up to 100% US ownership in most (not all) business categories, a significant structural advantage.
3. Business Structures Available to Foreign Investors
The right structure depends on your intended activities, ownership requirements, tax position, and long-term growth plans. Here is a practical comparison of the main options:
| Structure | Best For | Foreign Ownership | Permitted Activities |
| Thai Private Limited Company | Most common | Standard 49% unless BOI/FBL/Treaty | Full operational presence |
| Branch Office | Simple to set up | 100% foreign, but limited to parent’s activities | Extension of foreign HQ |
| Representative Office | Low cost, simple | 100% foreign, but cannot earn revenue in Thailand | Market research, liaison only |
| BOI-Promoted Company | Best long-term option | Up to 100% for qualifying sectors | Manufacturing, tech, HQ functions |
| US Treaty of Amity Company | US nationals/companies only | Up to 100% | Most business activities |
For most foreign companies establishing a substantive operational presence in Thailand, the Thai Private Limited Company is the standard route, either as a 49:51 joint venture or through BOI/Treaty of Amity for majority ownership.
4. Foreign Business Licence vs Thai-Majority Ownership, What Is the Difference?
This is the question most foreign investors face first. The Foreign Business Act lists three schedules of restricted business activities. For most of these activities, foreigners cannot own more than 49% of a company without obtaining a Foreign Business Licence (FBL) or qualifying for an exemption.
Thai-Majority (49:51) Structure
The most common approach for foreign investors who do not qualify for BOI or the Treaty of Amity. A Thai partner or group of Thai shareholders holds 51% of the shares. This is legal and workable, but the 2026 DBD reforms have made it significantly harder to use nominee Thai shareholders. Thai shareholders must now demonstrate genuine financial capacity with bank statements (see Section 7 below).
Foreign Business Licence (FBL)
An FBL allows a foreign majority or fully foreign-owned company to operate in a restricted sector. The application is reviewed by the Foreign Business Committee and can take 60–90 days. It is the appropriate route where BOI promotion is not available and there is no applicable treaty.
BOI Promotion
The Board of Investment promotes foreign investment in qualifying sectors, manufacturing, technology, logistics, regional headquarters functions, and others. BOI-promoted companies can receive full foreign ownership rights (no FBL needed), tax holidays of up to 8 years, import duty exemptions, and land ownership rights for the promoted business. The application process requires a detailed business plan and typically takes 60–90 days. +/- 6 months
US-Thai Treaty of Amity
American citizens and companies incorporated in the United States can operate in Thailand with up to 100% US ownership under the Treaty of Amity and Economic Relations (1966). This is one of the most significant bilateral investment advantages available to any nationality in Thailand. It does not cover all sectors, land ownership, communications, and certain others are excluded, but it covers the majority of commercial activities.
5. Step-by-Step: Company Registration Process in Thailand
Since January 1, 2026, all private limited company registrations must be submitted through the DBD Biz Regist platform (edbr.dbd.go.th). Physical submissions are no longer accepted.
| Step | Action | Detail |
| Step 1 | Reserve company name | Via DBD Biz Regist online, check availability and reserve for 30 days |
| Step 2 | Hold promoters’ meeting | Minimum 2 promoters sign the Memorandum of Association (MoA) |
| Step 3 | File MoA with DBD | Online via DBD Biz Regist, include share structure, registered address, objectives |
| Step 4 | Hold statutory meeting | Must occur within 3 months of MoA filing, appoint directors, adopt Articles |
| Step 5 | Register the company | File within 3 months of statutory meeting via DBD Biz Regist, receive Certificate of Incorporation |
| Step 6 | Open corporate bank account | Required before operations, most banks require physical presence of at least one director |
| Step 7 | Register for tax / VAT | With the Revenue Department, VAT required if annual revenue exceeds THB 1.8 million |
| Step 8 | Register for Social Security | With the Social Security Office (SSO) if employing staff |
Important: The statutory meeting must take place within 3 months of the MoA filing, and the company must be registered within 3 months of the statutory meeting. Missing either deadline means starting the MoA process again.
6. Costs, Timelines & Documentation
Typical Timeline
- Name reservation: 1–3 days
- MoA filing to statutory meeting: 7–14 days (minimum notice period for shareholders)
- Company registration after statutory meeting: 3–7 days (via DBD Biz Regist)
- Total from start to Certificate of Incorporation: 2–4 weeks for a straightforward case
- BOI or FBL applications add 60–90 days to the timeline +/- 6 months
| Item | Approximate Cost | Notes |
| DBD registration fee | THB 5,000–50,000 | Based on registered capital |
| Registered capital (minimum for work permit) | THB 2,000,000 per foreign employee | Must be paid up |
| Legal / incorporation fees | THB 30,000–80,000 | Varies by firm and complexity |
| Notarisation / translation (foreign docs) | THB 5,000–15,000 | Required for foreign shareholder documents |
| Bank account opening (deposit) | THB 10,000–50,000 | Minimum balance varies by bank |
| VAT registration | Free | Via Revenue Department online |
| Annual audit (ongoing) | THB 15,000–50,000/year | Mandatory for all companies |
Core Documentation Required
- Memorandum of Association (signed by all promoters)
- Articles of Association
- Shareholder register with proof of identity (passport copies for foreign shareholders)
- Thai shareholder bank statements, 3 months, transaction-matched to share subscription amount (DBD Order No. 2/2568)
- Registered office documentation, Letter of consent from property owner + floor plan
- Director ID documents (passport + photo for foreign directors)
- Statutory meeting minutes
7. Critical 2026 Regulatory Changes Every Foreign Investor Must Know
Thailand’s company registration environment changed significantly in 2026. These are not minor administrative updates, they affect how companies are structured, documented, and amended. Understanding them before you start will save you significant time and legal costs.
| Change | What It Means | Impact on Foreign Investors |
| Digital-only registration | DBD Biz Regist, all registrations online only | Foreign investors can register remotely from overseas |
| DBD Order No. 2/2568 (Jan 2026) | Thai shareholders must provide 3 months of bank statements proving genuine capital | Applies to JVs with foreign minority + companies with foreign authorised signatories |
| Address verification rules (Jan 2026) | Letter of consent from property owner + floor plans required as registered office proof | Eliminates shell/desk-only registrations |
| In-person amendment verification (Apr 2026) | Amendments adding foreign shareholders or directors require Thai parties to appear before DBD registrar in person | Power of attorney no longer sufficient for these filings |
What This Means in Practice
The DBD’s 2026 reforms are specifically designed to eliminate nominee shareholder structures, arrangements where Thai nationals hold shares on behalf of a foreign investor without genuine economic participation. The consequence for legitimate joint ventures is that your Thai partners must be able to demonstrate real financial capacity to subscribe their shares. A Thai co-founder who holds shares but cannot evidence the capital is now a compliance risk, not just an administrative one.
For companies already operating with existing structures, the April 2026 in-person amendment rule means that adding foreign shareholders or directors to an existing Thai company triggers a mandatory personal appearance before the DBD registrar, planning ahead for these filings is essential.
Gazette reference: DBD Order No. 2/2568, published in the Royal Thai Government Gazette, Volume 142, Special Section 397 Ng, 22 December 2025. Effective 1 January 2026.
8. Common Mistakes Foreign Investors Make
- Using nominee Thai shareholders. Beyond the legal risk, the 2026 bank statement requirements now make this structurally difficult to execute. The DBD is actively investigating over 21,000 suspected nominee arrangements.
- Underestimating capital requirements. THB 2 million per foreign work permit holder is the practical minimum, not just a registration fee. The capital must be demonstrably paid up.
- Missing the statutory meeting deadline. If the meeting is not held within 3 months of the MoA filing, the entire process must restart from the name reservation stage.
- Incorrect registered address. Under the 2026 rules, using a virtual office or co-working space without proper owner consent documentation will fail the address verification step.
- Not planning for BOI early enough. BOI applications take 60–90 days +/-6 months and must be approved before registration for the tax incentives to apply. Incorporating first and applying for BOI afterwards typically disqualifies you from some incentives.
- Assuming the Treaty of Amity covers all activities. It does not, check the excluded sectors before relying on this route for majority US ownership.
9. How Narai Partners Can Help
Narai Partners advises international companies on company registration in Thailand across all major structures, Thai Private Limited Companies, BOI-promoted entities, US Treaty of Amity companies, branch offices, and representative offices. Our Corporate & Commercial team handles the full registration process: structure advice, documentation preparation, DBD filings, and post-incorporation compliance.
Unlike larger firms where incorporation work is handled by junior associates, at Narai Partners you work directly with director and partner-level lawyers throughout. Our team has handled registrations across all major foreign investor nationalities, US, UK, French, Singaporean, Japanese, and others, and understands the nuances of structuring for different business models and sectors.
We also advise on the 2026 DBD compliance requirements for existing companies reviewing their shareholder structures, and on BOI promotion applications where qualifying sectors are involved.
FAQ: Company Registration in Thailand for Foreigners
Can a foreigner own 100% of a company in Thailand?
Yes, in certain circumstances. The two most common routes to full foreign ownership are BOI promotion (available to qualifying sectors such as manufacturing, technology, and logistics) and the US-Thai Treaty of Amity (available to US nationals and US-incorporated companies). A Foreign Business Licence can also permit majority or full foreign ownership in restricted sectors, subject to Foreign Business Committee approval.
How long does company registration in Thailand take?
For a straightforward Thai Private Limited Company, the process from name reservation to Certificate of Incorporation typically takes 2–4 weeks. BOI or FBL applications add 60–90 days +/ 6 months. Since January 2026, all registrations are processed through the DBD Biz Regist digital platform, which has streamlined processing times for standard applications.
What is the minimum capital required to register a company in Thailand?
There is no statutory minimum registered capital for a general private limited company. if not hiring foreigners the limit is 1 share per shareholder at a value of minimum THB, if hiring foreigners 2,000,000 However, the practical minimum is THB 2 million per foreign work permit holder, this is not a registration requirement but a work permit requirement. For BOI-promoted companies, the minimum registered capital is typically THB 1 million. Companies in certain sectors (banking, insurance) have their own sector-specific capital requirements.
What changed about Thai shareholder requirements in 2026?
DBD Order No. 2/2568, effective 1 January 2026, requires Thai shareholders in companies with foreign minority ownership (or with foreign authorised signatories) to provide three months of bank statements demonstrating genuine financial capacity, with the statements specifically evidencing the share subscription payment. This measure targets nominee arrangements and has significantly increased documentation requirements for joint venture registrations.
Can I register a Thai company remotely from overseas?
Yes. The move to the DBD Biz Regist digital platform from January 2026 means foreign investors can complete company registration remotely, including identity verification and digital signatures, without being physically present in Thailand. However, opening a corporate bank account typically still requires at least one director to appear in person at the bank.
Do I need a Thai partner to register a company in Thailand?
Not necessarily. If you qualify for BOI promotion or the US-Thai Treaty of Amity, you can hold majority or full foreign ownership without a Thai partner. For most other business activities under the Foreign Business Act, a Thai majority shareholder (51%) is required unless you obtain a Foreign Business Licence. An experienced Thai legal advisor can help you identify the most appropriate structure for your business model.
Get Legal Advice on Company Registration in Thailand
Company registration in Thailand involves structure decisions that have long-term implications for ownership, tax, and operational flexibility. The right structure depends on your sector, nationality, capital position, and growth plans, and the 2026 regulatory changes make getting the documentation right from the outset more important than ever.
Narai Partners’ Corporate & Commercial team advises international investors on company registration, BOI applications, Treaty of Amity structuring, and post-incorporation compliance. All matters are handled at director and partner level.
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This article is general information, not legal advice for your situation. Thai rules change often: contact us before acting on it.