Complete Practical Guide to Company Registration Requirements in Thailand, Individual Registration Procedures, and BOI Application Steps

Establishing a company in Thailand is not as simple as filling out a form and paying a fee. In practice, numerous hurdles-including registration requirements, shareholder structure, local compliance obligations, and even the corporate bank account opening process-can stall progress. Notably, as of 2025, Thailand’s Department of Business Development (DBD) has significantly tightened its scrutiny regarding

Foreign natural persons’ shareholding ratios;

Evidence of paid-up capital; and

Authenticity verification of the registered company address.

Many applications have been rejected due to unregistered lease agreements or inconsistencies in directors’ residential address information.

Basic Requirements for Company Registration in Thailand

1. At least one Thai national (natural person) must serve as a shareholder, holding no less than 25% of shares; alternatively, shares may be held by a Thai legal entity. For a fully foreign-owned company, establishment must proceed via the Board of Investment (BOI) promotion route or under a specific industry license.

2. The company must appoint at least three directors, of whom at least one must reside permanently in Thailand. This resident director must provide valid proof of Thai residential address (e.g., a registered lease agreement plus utility bills).

3. Registered capital must be paid up according to industry-specific risk classifications. For general trading companies, it is recommended that at least 25% of the registered capital be fully paid up. Such funds must be remitted from abroad with clear purpose notation; the receiving Thai bank must issue a Foreign Exchange Transaction Form (FET Form).

4. The registered company address must be a genuine commercial property. Residential addresses are strictly prohibited. If an apartment unit is used, written consent from the property owner and an official confirmation letter bearing the management company’s seal are mandatory.

5. All foreign-language documents (e.g., passports, Articles of Association) must be certified either by a Thai Notary Public or by the Chinese Embassy in Thailand, and accompanied by certified Thai translations.

Practical Step-by-Step Process for Individuals Registering a Company in Thailand

1. Determine the company type Most individuals opt for a “Private Limited Company” (Co., Ltd.), which-outside BOI-promoted projects-cannot be 100% foreign-owned.

2. Pre-approve the company name Submit three alternative names online via the DBD’s official website. The system conducts real-time checks, and results are typically issued within one business day.

3. Prepare the Articles of Association and minutes of the shareholders’ meeting These documents must clearly specify share allocation, director appointments, and scope of business operations, and must be signed by all shareholders and notarized.

4. Submit the registration application to the DBD Upload required PDF documents online, then schedule an in-person verification appointment. Applicants must attend in person with their original passport-proxy representation is not permitted.

5. Collect the Certificate of Incorporation and complete official seal registration Upon approval, the Certificate of Incorporation is issued within three to five working days. Simultaneously, tax registration must be completed at the Revenue Department (using forms PP.10 and PP.20).

6. Open a corporate bank account Most banks require directors to appear in person at a branch, presenting the Certificate of Incorporation, Articles of Association, director identification documents, and proof of Thai residential address. Some banks-including Siam Commercial Bank (SCB) and Kasikornbank-now support pre-submission of documentation for preliminary review via online platforms.

Key Steps for BOI Application

BOI approval is not a prerequisite for company registration; however, successful BOI approval grants substantial benefits, including exemption from foreign shareholding restrictions, corporate income tax reductions, and zero import duty on machinery and equipment. Starting in 2025, the BOI has introduced an expedited review channel for 12 priority sectors-including “Digital Economy,” “Green Energy,” and “Advanced Medical Device Assembly”-reducing average processing time to 45 days.

1. Project Pre-Assessment Complete an online questionnaire on the BOI’s official website; the system automatically generates an initial eligibility assessment.

2. Submit Formal Application Package Includes a comprehensive business plan (covering technology sources, local procurement ratio, and employment commitments), feasibility analysis, shareholder background profiles, and proof of proposed factory/office premises.

3. Attend BOI Interview A one-on-one review conducted by BOI investment officers, focusing on technological sophistication and local value-added contributions.

4. Sign the Investment Promotion Certificate (IEC) upon approval This document specifies granted incentives and corresponding obligations, typically valid for eight years.

5. Complete BOI Registration and Fulfill Ongoing Reporting Obligations Submit annual operational progress summaries; any major changes (e.g., capital increase, relocation of registered address) must be reported to the BOI in advance.

Critical Updates Effective July 2025

Starting in July 2025, the DBD and BOI jointly launched the “Single-Window Electronic Verification System.” Under this system, key data-including company registered address, director identity, and FET Form details-are automatically cross-checked across agencies. Should false or inconsistent information trigger a system alert, not only will the registration application be rejected outright, but the applicant will also be barred from reapplying for three years.

Additionally, Thailand’s Revenue Department (RD) has intensified scrutiny of related-party transactions. If a personal shareholder borrows funds from the company and fails to repay such amounts within 12 months, the outstanding balance will be treated as deemed dividend income and taxed accordingly.

The above outlines the core requirements and latest enforcement guidelines for company registration and BOI application in Thailand. We hope this information proves helpful. It is strongly recommended-prior to initiating the process-that you engage a licensed Thai practicing lawyer or a certified accounting firm to conduct a pre-filing compliance review, thereby avoiding delays and repeated corrections caused by oversights in procedural details.