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Inside a Thailand BOI Interview: 6 Officers, 90 Minutes, One Shot at Approval

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Inside a Thailand BOI Interview: 6 Officers, 90 Minutes, One Shot at Approval

September 18, 2026

This material was prepared with the help of artificial intelligence and checked by a person. Editorial responsibility: Aster Of Asia Co., Ltd..

Responsible for content: Leonid Ustinov, Aster Of Asia Co., Ltd.

Aster of Asia editorial team


A conference room at the Board of Investment office on Vibhavadi Rangsit Road. Six people sit across the table: an investment analyst, a technical specialist, a legal officer, and someone from the sector desk. You have just shown a slide with a five-year revenue forecast. The first question is not about revenue at all.

'Why does this project need 100% foreign ownership?'

An answer like 'so I don't depend on a Thai partner' ends the conversation faster than any flaw in a financial model. The officer is looking for something else entirely: the economic logic behind your presence in the country - a technology, an export channel, a skill set the local market does not have.

The BOI interview that follows an application is not a paperwork check. It is a defense of your project in front of people who have seen hundreds of similar applications and know exactly where the weak spots hide. You need to prepare for it the way you would prepare for an investment committee, not an immigration desk.

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Quick Answer

  • Format: a project presentation followed by a Q&A session in front of 4-6 BOI officers from the investment, technical and legal departments.

  • Duration: from 60 minutes to two hours. Longer sessions are typical for large projects (investment above 200 million baht, excluding land and working capital) or projects requiring a deep technical review.

  • Structure: a short introduction of your professional background, then a 15-20 minute project presentation, then the longest part - open discussion.

  • Mandatory slide content: investment volume, revenue and profit projections, headcount, share of Thai staff, funding sources, and launch timeline.

  • The core defense question: what value the project brings to Thailand's economy, and why it cannot be run through a Thai company with local shareholders.

  • What BOI status delivers: 100% foreign ownership in promoted activities, corporate tax exemption for 3 to 8 years depending on category, the right for the company to own land for project purposes, and streamlined visas and work permits through the One Stop Service Center.

Key Facts

  • BOI status is granted under the Investment Promotion Act and legally bypasses restrictions of the Foreign Business Act, the law that normally caps foreign ownership of a Thai company at 49%.

  • Land ownership rights tied to BOI promotion apply only to land needed for the project itself: a factory, an office, staff housing. It is not a vehicle for buying land for resale or a rental business.

  • For most promoted activities, the minimum investment is 1 million baht, excluding land and working capital. The threshold is low, but it does not lower the bar on project substance.

  • The debt-to-equity ratio for new projects must not exceed 3:1. A model built mostly on borrowed money with a token registered capital raises red flags during the initial application review.

  • The decision-making level depends on the amount: projects under 200 million baht are reviewed by the BOI office itself, larger ones go to a subcommittee, and the largest go to the full Board. This is why interview depth varies so much between applicants.

  • The tax exemption in most categories is capped by the investment amount: whatever you put into fixed assets is what gets exempted from profit tax. Exceptions exist for advanced technology categories.

  • Projects with investment above 10 million baht (excluding land and working capital) must obtain quality standard certification within the timeframe set in the promotion conditions.

  • A recent enforcement sweep in Phuket illustrates why officers scrutinize applications so closely: of roughly 360 Phuket-based companies reviewed for BOI-linked structures, only 8 fully matched their stated business plans and held confirmed BOI investment privileges, with the rest flagged over land-holding structures.

A note on precision: panel size and meeting length reflect common practice, not a published regulation. BOI does not publish an interview schedule. Investment thresholds, the 3:1 ratio and tax holiday periods, on the other hand, are fixed in the Board's current criteria, and those are exactly the figures worth reconfirming before filing, since BOI revises categories and conditions regularly.

How to Start: Step by Step

  1. Check whether your activity is on the promoted list. This is the filter question. If your project is a real estate brokerage, apartment rentals, or land resale, BOI will not help you, and the rest of this guide is irrelevant to your case. The list of categories and their benefits is published on the Board of Investment's official site.

  2. Determine your category (A1-A4 or B) before filing. The category sets your tax holiday length and how technically demanding the panel will be. An application for category A3 backed by a 'we will sell services' pitch does not survive review.

  3. Build a financial model with clear capital sources. Not a forecast for its own sake, the officer will test its internal logic. Revenue of 400 million baht on capex of 8 million and a headcount of four people is not optimism, it is a red flag.

  4. Write a hiring plan with real numbers. How many Thai employees, in which roles, at what salaries, how many foreign specialists and why exactly they are needed. Add a training program for Thai staff, knowledge transfer is one of the main evaluation criteria.

  5. Prepare a one-paragraph answer to the 100% ownership question. No emotion, just logic. A working line: the technology belongs to the parent company, transferring it requires full control of the legal entity; contracts and clients are international; the industry requires certifications tied to the group.

  6. Prepare a 15-20 minute presentation in English. Cap it at 12-15 slides. Cover investment, timeline, jobs, export or import substitution, regional development impact, and funding sources.

  7. Rehearse the defense out loud with someone who asks the uncomfortable questions. Ideally someone who has worked with BOI and understands how objections are framed. The gap between a rehearsed answer and an improvised one in a room with six examiners is obvious immediately.

  8. Arrive in Bangkok early. The BOI representative sets the meeting date after filing, and you do not choose it. If you are flying in specifically for the defense, book accommodation near the Board's office well in advance since Bangkok's morning traffic can undo a week of preparation.

  9. Keep the communication line open after the meeting. Officers send the project to internal review and often request additional documents. The speed and completeness of that response matters almost as much as the presentation itself.

What usually kills the defense

It is rarely a weak financial model, that can be revised on request. What kills the defense is a story that does not add up.

A typical case: an entrepreneur files a manufacturing or service project, but answers technology questions in vague generalities, while the hiring plan lists two Thai administrators and five foreign 'consultants'. Officers read this as an attempt to secure visas and land rights for what is essentially a standard business that could run through a regular Thai company. There may not even be a rejection, just a drawn-out cycle of document requests that stretches on for months and goes nowhere.

The second mistake is costlier. People approach BOI for the tax break without calculating its real cost. Status brings reporting obligations, launch deadlines, restrictions on land and asset use, and annual compliance checks. If the corporate tax exemption is capped by your investment amount and that investment is modest, total savings over the holiday period can end up smaller than the cost of maintaining the status.

My view: with real capex below roughly 5-10 million baht and no clear export or technology component, BOI is not really about tax savings, it is about ownership structure. It makes sense when you critically need 100% control of the company or the right to own land for your own facility. If you don't need either, a standard Thai company with a properly structured shareholder base and a work permit will be cheaper and faster. The exception: if you qualify for category A1 or A2 and plan serious investment, the calculation changes entirely, since the benefit there is genuinely large.

FAQ

Can the BOI interview be done online?

BOI holds meetings both in person and via video call, depending on the project and the department's workload. Do not assume online is the default: for large or technically complex projects, officers generally prefer to meet the applicant face to face.

What language is the interview conducted in?

English is the working language. Thai is not mandatory, but an interpreter or a Thai-speaking team member helps during technical exchanges when officers clarify details among themselves.

Do I have to attend in person if I have a lawyer?

A lawyer or consultant can attend and handle procedural questions. But the project presentation is expected from you personally. Officers also assess the applicant's professional background directly, which is why the meeting opens with your introduction.

How long does it take to get a decision after the interview?

After the meeting, the project goes to internal review. Timing depends on the investment amount and the decision level: the BOI office, a subcommittee, or the full Board. A request for additional documents after the interview is a normal part of the process, not a sign of rejection.

Does BOI status let me buy a condo or a villa?

No. Land ownership rights under the Investment Promotion Act are tied strictly to the needs of the promoted project. Buying a home for personal use, investment rental, or resale does not qualify. Private residential investment relies on other mechanisms, such as freehold condominium ownership and long-term land leases.

What happens if the promotion is refused?

A refusal does not block the business. The company can operate as a standard Thai entity under the Foreign Business Act, or a new application can be filed with a revised project. Reapplying is not unusual as long as the substance of the project changes, not just the paperwork.

What share of Thai staff counts as normal?

There is no fixed universal ratio for BOI projects, positions for foreign specialists are approved individually based on function. But a plan where foreigners outnumber Thai staff without a clear explanation of their unique expertise will always raise questions.

Do I need a signed office or factory lease at the time of the interview?

A signed contract is not required, but specifics are: location, size, terms, timeline. A vague 'we'll decide after approval' weakens the defense because it makes the project timeline unprovable.

If you are preparing for a BOI defense, start with one exercise: write on a single page exactly what Thailand gains from your project, technology, exports, jobs, staff training. If the page stays blank, no presentation will fill it in, and that is the signal to rework the project itself, not the slides.

Source: Thai-Russian Business Association

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