Key Takeaways
- BOI-promoted companies can operate with 100% foreign ownership in eligible categories, bypassing FBA restrictions without requiring a Foreign Business License
- Tax incentives include corporate income tax holidays of 3–8 years; non-tax incentives include land ownership rights and preferential work permit processing
- BOI promotion is not limited to large manufacturers — SMEs in food processing, digital services, medical devices, and precision manufacturing can also qualify
Introduction
A common perception among companies considering Thailand is that BOI (Board of Investment) promotion is primarily relevant to large-scale manufacturing operations. In practice, Thailand’s BOI promotion regime is open to a broad range of industries and company sizes, and it represents one of the most legally straightforward mechanisms for foreign companies to operate with 100% foreign ownership without an FBL. Part 4 of this series examines how the BOI regime works.
What Is Thailand’s BOI?
Thailand’s Board of Investment (BOI / คณะกรรมการส่งเสริมการลงทุน) operates under the Office of the Prime Minister and is responsible for promoting investment in Thailand. Its legal basis is the Investment Promotion Act B.E. 2520 (พระราชบัญญัติส่งเสริมการลงทุน พ.ศ. 2520).
Companies that receive BOI promotion certificates gain protections and exemptions from standard foreign ownership restrictions, together with various financial and operational incentives.
Key Benefits of BOI Promotion
1. Foreign Business Act Exemption
Companies meeting the applicable BOI promotion criteria can operate with 100% foreign ownership in activities that would otherwise fall under FBA Annexes 2 or 3, without needing a Foreign Business License. For many foreign investors, this is the single most significant benefit.
2. Tax Incentives
| Incentive | Description |
|---|---|
| Corporate income tax (CIT) holiday | 3–8 years of CIT exemption on promoted income (varies by activity category) |
| CIT reduction | Post-holiday period may include a 50% CIT reduction for additional years |
| Import duty exemption | Exemption on import duties for machinery and production materials |
| R&D deduction | Enhanced deductions for qualifying R&D expenditure in certain cases |
3. Non-Tax Incentives
| Incentive | Description |
|---|---|
| Land ownership | Foreign nationals generally cannot own land in Thailand; BOI-promoted companies may be permitted to hold land under certain conditions |
| Foreign workforce | Facilitated work permit and visa processing for foreign technicians and specialists |
| Remittance protection | Protection for remittance of dividends, profits, and capital abroad |
BOI Activity Categories
BOI classifies promoted activities into Category A (with tax incentives) and Category B (non-tax incentives only).
Category A (Tax Incentives Apply)
| Category | Feature | Examples |
|---|---|---|
| A1 | Maximum incentives: 8-year CIT holiday | Biotechnology, electronic design, advanced materials, medical devices |
| A2 | 8-year CIT holiday | High-tech agriculture, automated machinery manufacturing |
| A3 | 5-year CIT holiday | Electronic components, precision parts, chemicals |
| A4 | 3-year CIT holiday | Light manufacturing, food processing, plastic products |
Category B (Non-Tax Incentives Only)
| Category | Feature | Examples |
|---|---|---|
| B1 | No CIT holiday; FBA exemption and land ownership available | Certain service industries, trade and logistics |
| B2 | No CIT holiday; limited non-tax incentives only | Certain general manufacturing |
Can SMEs Access BOI Promotion?
BOI promotion is not exclusively for large-scale manufacturers. The following are examples of sectors where smaller companies have obtained BOI promotion:
- Food processing and agricultural processing: High export ratios tend to support BOI eligibility
- Software and digital services: Digital industries are a BOI priority sector
- Medical devices and healthcare: Many activities fall within A1 or A2 categories
- Precision parts and tool & die manufacturing: Well-aligned with Thailand’s manufacturing cluster objectives
- Logistics and warehousing: Eligible in certain conditions
Minimum investment requirements vary by activity and category. As a general indicator, a minimum investment in machinery and equipment of THB 1 million or more (excluding land and working capital) is commonly referenced, though the actual threshold depends on the specific promoted activity.
The BOI Application Process
flowchart TD
A[Identify eligible activity and category] --> B[Prepare business plan and application documents]
B --> C[Submit application to BOI]
C --> D[BOI review and interview]
D --> E{Approved?}
E -- Yes --> F[Receive BOI Promotion Certificate]
E -- No / Conditional --> G[Negotiate conditions, revise, reapply]
F --> H[Commence operations under promotion conditions]
H --> I[Ongoing BOI reporting and compliance]Timeline from Application to Certificate
The review process typically takes 4–9 months or more. Timelines vary significantly depending on the activity type, scale of investment, completeness of documentation, and BOI’s current priorities.
Key Application Documents
- Application form (BOI-prescribed format)
- Business plan (including production plan, employment plan, investment plan)
- Financial statements (or financial projections for new companies)
- Company registration documents (or statement of intended incorporation)
- Environmental impact assessment report (depending on activity type and scale)
Ongoing Obligations for BOI-Promoted Companies
BOI promotion comes with continuing obligations set out in the promotion certificate.
| Obligation | Description |
|---|---|
| Annual reporting | Report production volumes, employment figures, and other metrics to BOI annually |
| Machinery use | Use approved machinery for the approved purpose |
| Thai employee ratio | Maintain a specified ratio of Thai employees |
| Environmental compliance | Maintain environmental standards as specified at approval |
Violations of promotion conditions can result in revocation of the promotion certificate and recovery of previously granted incentives.
Summary
BOI promotion is a significant tool for foreign companies looking to operate in Thailand: it provides a legally sound path to 100% foreign ownership and meaningful tax incentives. The trade-offs are a longer application timeline and ongoing compliance obligations that should be factored into the investment planning process from the outset.
Final Part of this series — Part 5: “Joint Ventures, Shareholders’ Agreements, and Planning Your Thailand Market Entry”
For questions on BOI applications or Thailand market entry planning generally, 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.