The Thailand Board of Investment (BOI) is the government agency that grants investment promotion to eligible projects. The board of investment Thailand framework offers incentives such as tax relief, import duty exemptions and foreign ownership privileges, but only for activities BOI promotes and only on the conditions attached to each approval. Not every foreign-owned company qualifies, so eligibility depends on the project.

What Does the Thailand Board of Investment Do?

BOI evaluates investment proposals, decides whether to promote them, and issues an investment promotion certificate that records the approved activity, incentives and conditions. It also offers investment facilitation services, including guidance on procedures and support for bringing in qualified foreign experts.

BOI promotion is separate from ordinary business establishment in Thailand. Registering a company with the Department of Business Development creates the legal entity. Promotion is an additional, discretionary approval, and it does not replace other licences a particular industry may require.

Benefits of BOI Investment Promotion

BOI investment promotion can include several kinds of support, depending on the activity and the certificate issued:

• Corporate income tax exemption or reduction. Exemption periods vary by activity and promotion tier, and some projects receive reductions instead.

• Import duty exemptions. These can apply to qualifying machinery and, for some projects, certain raw materials.

• Foreign ownership privileges. Promoted companies may hold majority or full foreign ownership in approved activities where the framework allows it.

• Work permits for foreign experts. Promoted projects can use an expedited route for qualified technicians, executives and their families.

Treat this list as a menu of possibilities, not a guarantee. BOI investment incentives differ by project category, and an applicant should read the conditions in its own approval carefully.

BOI Eligibility and Requirements

Eligibility starts with the activity itself. The board of investment Thailand promotes defined categories of business, so the first question is whether your project appears among them. Beyond that, BOI considers the investment amount, feasibility of the project, its technology or innovation content where relevant, and the operational plan. Minimum investment requirements differ by activity, and some projects need additional documents.

For general business activities, supporting documentation typically includes business details and operating history, financial statements where available, production process information and main machinery details. BOI application documentation can be extended for particular measures, so check the checklist for your category on the BOI website.

BOI Services and Application Process

BOI services cover enquiries, pre-application clarification, application review, certificate issuance and aftercare. The official process runs as follows:

1. Identify the eligible activity and incentive category that match your project.

2. Review the eligibility criteria and the supporting-document checklist.

3. Prepare the application, project details and investment plan. Applying for promotion is free of charge.

4. Submit through the online e-Investment Promotion system, which is the normal channel for most applications.

5. Meet the assigned BOI officer to clarify the project, which official guidance says should happen within 10 working days of submission, and answer any further requests.

6. Receive the decision, which BOI notifies within 7 days after the meeting minutes are approved. Accept the promotion within one month of notification.

7. Apply for the promotion certificate with supporting evidence within six months. BOI issues it within 10 working days of receiving the complete request.

After approval, the promoted company must keep meeting the conditions in its certificate and any reporting duties BOI sets.

BOI Application Timeline and Common Mistakes

Official guidance gives review periods that depend on investment size, counted in working days once documents are complete: up to 40 days for investments up to THB 200 million, up to 60 days for investments up to THB 2,000 million, and up to 90 days above that. These are review periods, not the total time to set up and operate a business. Preparing documents, incorporating the company and obtaining the certificate all add time.

Common mistakes include:

• Choosing the wrong activity category, which can change both eligibility and the incentives available.

• Submitting incomplete documents, which delays the review clock.

• Assuming incentives are automatic. They are conditional and set out in the certificate.

• Overlooking post-approval obligations, such as meeting the acceptance and certificate deadlines and complying with ongoing conditions.

Conclusion

Before applying, assess whether your activity is eligible, which incentives are realistic, what documents are needed and which obligations will continue after approval. InterLoop Solutions is one of several companies with a similar name, so readers researching service providers should verify a firm's actual services and Thai experience directly. For decisions specific to your project, consult current official BOI guidance or a qualified Thai investment professional.