The BOI (Board of Investment of Thailand) incentive system significantly affects both the cost of doing business and operational flexibility when investing in AI projects in Thailand. This article provides a systematic overview for managers, business development personnel, and AI implementation leaders at Japanese companies operating in Thailand, covering BOI's role, AI-related business classifications, key incentives, the application process, and common misconceptions. By the end of this article, readers should be able to determine whether a BOI application is necessary for their own AI project and which classification to apply under.

Note that specific BOI conditions and tax rates are subject to change due to policy revisions, so always verify the latest information on the official BOI website (www.boi.go.th). This article is intended to provide a general conceptual framework, and expert advice is essential for decisions regarding individual cases.

BOI is an investment promotion agency that grants incentives such as corporate tax exemptions and customs duty exemptions to "promoted industries" designated by the Thai government. AI and software-related businesses are included among these promoted industries, and the presence or absence of incentives can significantly affect initial costs and total expenditure over three to five years of operation.

BOI is a government agency responsible for promoting investment in Thailand and administers incentives under the Investment Promotion Act. Foreign companies are also eligible for BOI incentives; however, matters such as land ownership and the acceptance of foreign engineers are governed by both the BOI approval and relevant laws and regulations. Foreign ownership ratios are also subject to restrictions under separate legislation, so verification on a case-by-case basis is required. (Source: Investment Promotion Act 1977, BOI FAQ)

For AI investments, the applicable promoted industry category varies depending on the form of the development base (SaaS provision, R&D center, or solutions for local manufacturing industries), so organizing the overall picture of the business in advance will help the application process proceed smoothly.

BOI's primary roles can be summarized in four points: ① designating promoted industries, ② reviewing and granting incentives, ③ supporting the stay and employment of foreign engineers, and ④ administering special provisions related to land ownership and foreign currency remittances. Promoted industries are divided into multiple sections, with AI and software-related businesses falling primarily under the "Digital Industry" section.

Depending on which category an application is filed under, the following will differ:

• The content of incentives (tax exemption period and applicable tax types)
• Minimum investment amounts and employment requirements
• Types of documents to be submitted

The key point is that the applicable category is not the same for all AI projects — it differs depending on whether the core nature of the business is "software development," "R&D," or "digital transformation for manufacturing." Selecting the wrong category at the outset can lead to the need to reapply or risk having approval revoked.

The following are classifications commonly referenced for AI investments.

Since actual classification codes and conditions are subject to revision, it is essential to refer to BOI's official list of Activities Eligible for Investment Promotion for final determinations. When classification is difficult, using BOI's Pre-consultation service allows a BOI officer to conduct a hearing and advise on which category is most appropriate.

Under the Thailand 4.0 policy and the digital industry promotion framework, the Thai government is actively encouraging investment in AI and digital sectors. For AI-related businesses, it is necessary to verify BOI activity codes and promotion groups separately. For example, the applicable codes and incentives differ across software development, digital services, digital parks, and R&D, so the appropriate approach is to first identify the activity code that matches the actual nature of the business, and then confirm the A1/A2/A3/A4/B1/B2 classification. Utilizing BOI not only helps reduce tax costs on initial investment, but also makes it easier to establish the "operational infrastructure" needed to run the business — such as visas for foreign engineers and land ownership.

When considering entry into Thailand, a common misconception among Japanese companies is that "BOI is primarily about cost benefits." While corporate tax exemptions are certainly significant, what tends to matter more in practice is operational freedom — such as how many foreign engineers can be hired, whether a 100% foreign-owned entity can be established, and whether land can be purchased. AI projects are prone to bottlenecks in securing talented engineers, and whether or not BOI approval can be obtained can fundamentally change the entire hiring strategy.

Under the economic vision known as "Thailand 4.0," the Thai government has been driving a shift toward high-value-added industries (digital, bio, robotics, etc.). AI and digital sectors are at the core of this vision, and this policy is reflected in the BOI's list of promoted activities. In recent years, there has been a trend toward adding and strengthening incentive measures for:

• Data centers and cloud infrastructure
• Digital platforms
• AI-powered solutions for manufacturing
• Research and development bases

However, incentives are not granted simply on the abstract basis of being "AI-related." Applications must specifically demonstrate "what will be left in Thailand" (in terms of employment, technology transfer, export contribution, etc.). How to articulate that a business involves genuine technology—rather than being merely a sales outpost—is the critical challenge when leveraging BOI for AI investments.

BOI incentives are divided into measures related to taxation, customs duties, personnel, and land. BOI incentives are determined first by satisfying the conditions of individual activity codes, and then by the A1/A2/A3/A4/B1/B2 classification, which governs the number of years of corporate income tax exemption and non-tax incentives. Since conditions differ by activity in the digital industry, they must be verified against the official activity-specific conditions. (Source: BOI A Guide 2025, BOI FAQ) Because the number of years of corporate income tax exemption and whether a cap applies vary by activity in the digital industry, explanations should be based on the official activity-specific conditions. For AI investments in particular, corporate income tax exemptions and quotas for accepting foreign engineers have a significant impact on business operations.

The following sections organize the key incentives by category. Note that exemption periods and cap amounts vary by category and investment scale, and the system is subject to revision; the latest conditions should always be confirmed in the official BOI guide.

The BOI's Corporate Income Tax (CIT) incentive is a system under which promoted businesses can receive exemptions or reductions for a period determined by their promoted activity category.

• Full exemption period: BOI corporate tax incentives differ in duration and cap depending on the activity code. For software development, the number of years of tax exemption and whether a cap applies vary according to the nature of the activity, and the classification for each activity code must be confirmed.
• Cap amount: In many cases, a cap is set at a certain percentage of the investment amount (whether a cap applies or not varies by category).
• Additional incentives: Meeting "additional requirements"—such as a certain ratio of R&D expenditure or investment in human resource development—may extend the tax exemption period.

For AI projects, including plans for model training and local R&D investment makes it easier to qualify for additional incentives. However, a longer exemption period is not necessarily more advantageous. For startup-type businesses that take time to become profitable, the exemption period may be consumed before any profit is generated. It is important to design the business plan so that the timing of profitability aligns with the tax exemption period.

Even for AI projects, the importation of machinery such as GPU servers, inspection cameras, and edge devices will occur. For BOI-approved businesses:

• Import duty exemption on machinery: Machinery used in the business can be imported duty-free.
• Import duty exemption on raw materials: For export-oriented manufacturing businesses, import duties on raw materials used in exported products are exempted.

For businesses such as software SaaS where the proportion of physical assets is small, the benefit is limited. However, for businesses handling AI image inspection systems or edge AI devices, this directly affects initial deployment costs. Even in cases where a GPU cluster is built locally, import duties on servers and network equipment can become a hidden cost in the business plan, and having BOI approval changes the predictability of capital planning.

BOI-approved businesses may be granted special provisions regarding the employment of foreign personnel, land ownership, and foreign currency remittances; however, the actual conditions vary depending on the business classification and the specific terms of approval.

• Foreign engineers may, depending on the BOI-approved business classification and individual conditions, be employed more flexibly than at ordinary corporations. However, the number of employees and job categories are determined in accordance with the approval terms and relevant laws. (Source: Investment Promotion Act 1977, BOI FAQ)
• BOI visa and work permit-related services have been consolidated into the Thailand Investment and Expat Services Center (TIESC) as of March 17, 2025, and are provided on the 6th and 7th floors of One Bangkok PARADE Zone.
• Land ownership: Ordinarily, foreign corporations cannot own land in Thailand, but BOI-approved businesses may in some cases be permitted to own land for business use.
• Foreign currency remittances: Remittance of investment funds, dividends, and profits overseas is facilitated.

For AI projects, a common pattern is to build a "mixed team" by initially sending engineers from Japan or overseas and gradually transitioning responsibilities to Thai engineers. Whether this structure can be established may depend on BOI approval. Incorporating a recruitment and development strategy into the business plan will also strengthen the persuasiveness of the application.

BOI applications generally proceed in the following sequence: "preliminary consultation → online application → interviews/hearings as needed → approval decision → receipt of approval certificate." Since the review period varies depending on the nature of the project and whether additional verification is required, it is advisable to confirm the specific schedule during a BOI preliminary consultation. (Source: e-Investment Promotion)

The following sections focus on two areas where Japanese companies tend to stumble: "preparing the business plan" and "understanding the review process."

Among the BOI application documents, the business plan is the most time-consuming to prepare and has the greatest impact on approval rates. The key points to emphasize for AI projects are as follows:

1. Specificity of business content: Stating "utilizing AI" alone is insufficient. Clearly specify what data will be used, with which model/architecture, and for what kind of operations.
2. Contribution to Thailand: Employment plans (job titles, headcount, skills), technology transfer plans, R&D ratio, local supplier procurement rate, etc.
3. Investment amount and funding: Breakdown of equipment, software licenses, and personnel costs; equity ratio; phased investment plan.
4. KPIs and progress indicators: Projections for revenue, employment, and R&D expenditure over 3–5 years from the start of operations.

Vague language invites follow-up questions from officers in charge and can extend the review period by several months. Rather than "writing the business plan in Japanese and then translating it into English," it is better to first build the framework in English and then prepare the Japanese version, which helps prevent discrepancies arising from translation nuances.

In BOI reviews, the following criteria are generally evaluated:

• Investment amount and economic impact: Degree of contribution to the Thai economy
• Level of technology: Degree of added value, potential for introducing new technologies
• Employment and human resource development: Plans for hiring and training Thai engineers
• Environment and governance: ESG factors, legal compliance framework

The time required varies depending on the investment amount and complexity of the project. Since the number of review days after online submission differs from case to case, it is advisable to confirm the latest estimate during a BOI preliminary consultation. Working backward from the desired business start date, allowing a buffer of six months to one year before the target date is a reasonable guideline for when to begin the application process. However, since actual timelines vary by project, it is safest to confirm the reverse-calculated schedule during a BOI preliminary consultation. (Source: e-Investment Promotion, BOI Preliminary Consultation)

Patterns for leveraging BOI in AI investment can be grouped into three categories: ① SaaS-type service provision, ② establishment of a research and development base, and ③ development of AI solutions for local manufacturing industries. The optimal category and incentive structure differ depending on which pattern is chosen.

The following sections outline the criteria for distinguishing between these three patterns.

The criteria for distinguishing between these patterns are "where the revenue comes from" and "what resources are retained within Thailand." The key differences are as follows: SaaS generates revenue primarily from sales with Thai engineers at the center of operations; an R&D base is primarily funded by development investment from the parent company, with deliverables returned to the parent; and manufacturing AI is operated in conjunction with factory equipment. Based on these distinctions, the basic approach is to apply under the category that best aligns with the project. When multiple elements are present, it is generally common practice to classify by the primary revenue source, but the final determination should be confirmed with the officer in charge during a preliminary consultation.

Incentives are contingent on compliance with conditions set for each activity—such as periodic reporting and employment plans—and may be revised if those conditions are not met. Below is an overview of the issues that most commonly trip up AI projects.

The following are common stumbling points seen in practice:

• Business description is too abstract: Stating only "we provide an AI platform" will invite deeper scrutiny during review. Specify concrete features and target use cases.
• Mismatch between investment amount and business scale: If capital expenditure is disproportionately large relative to a modest revenue plan, additional justification will be required.
• Employment plan is numbers only: Don't just state "50 employees by year 5"—also include position structure, skill requirements, and training plans.
• Post-approval condition compliance: Incentives are contingent on meeting conditions such as "periodic reporting," "minimum headcount," and "export ratio." Failure to comply may result in partial revocation of incentives.

Three effective countermeasures are: ① regularly checking the latest guidance on the BOI official website; ② working with local BOI-specialist consultants and accounting firms; and ③ using pre-consultation meetings to understand the types of questions officers typically ask. For companies with no prior BOI application experience, partnering with specialists for the first application can minimize the number of review rounds.

Below is a summary of frequently asked questions received when considering a BOI application for AI investment.

Q1: Can I start an AI business in Thailand without using BOI? Yes, you can. BOI approval is not mandatory, and AI businesses can be operated as non-BOI entities. However, restrictions on foreign ownership ratios, foreign employee quotas, and land ownership become more stringent, so for companies planning medium-to-long-term expansion, BOI application is often advantageous from a business perspective.

Q2: How long does it take from BOI application to approval? It varies significantly by case, but a general guideline is anywhere from several weeks to several months. For newer business categories such as AI, additional hearings may be required, and the process can take around six months. To be safe, it is advisable to begin the process six months to a year before the intended business launch date.

Q3: Can BOI incentives be obtained for software sales only? Depending on the category, it may be eligible; however, the actual presence of development and operations in Thailand, along with employment and technology transfer, is given significant weight. A model that simply sells software developed overseas may be deemed ineligible.

Q4: Can an existing Thai entity apply for BOI when adding a new AI business? In cases where an existing entity adds AI as a new business, it may be possible to apply on a per-business-unit basis. A business plan and accounting treatment that clearly separates the new business from existing operations will be required.

Q5: Are tax rates and conditions subject to change? The BOI framework is reviewed periodically, and promoted industries and incentive conditions are revised. The content of this article provides an explanation of the general framework; always verify the latest conditions through the BOI official website and professional advice.

BOI is a powerful framework that can simultaneously enhance tax efficiency, talent acquisition, and operational flexibility when advancing AI investment in Thailand. At the same time, receiving approval does not mean incentives are automatically granted—the specificity of the business plan and ongoing compliance with post-approval conditions are prerequisites.

The first steps to leveraging BOI for an AI project are to:

1. Identify the category that fits your business model (SaaS / R&D / manufacturing AI)
2. Align on the category and requirements through BOI's official pre-consultation
3. Clearly articulate in the business plan "what will be established and retained within Thailand"
4. Always verify the latest conditions using the official BOI guidelines

Our firm supports AI project launches in Bangkok, Thailand, accompanying clients from the business planning stage through BOI application and implementation. Once you reach the stage of seriously considering an AI business in Thailand, we recommend first clarifying which BOI category your business model most closely aligns with, then beginning application preparations with guidance from a specialist.