A Complete Guide to Company Registration in Thailand Procedures, Costs, Required Documents, and Common Pitfalls

Setting up a local company is an essential and unavoidable step for anyone wishing to conduct business in Thailand. However, many applicants find that although the registration process appears straightforward, practical implementation often leads to repeated rejections-due to minor documentation errors, shareholder structure issues, or misalignment with tax requirements-sometimes even causing significant delays to business commencement. Based on recent actual registration cases and the latest requirements from Thailand’s Department of Business Development (DBD) and Revenue Department (RD), this article outlines key procedural milestones without theoretical digressions-only facts.

Basic Prerequisites for Registration

1. At least one Thai national individual shareholder is required, holding no less than 25% of the shares (exemptions may apply for certain sectors such as advertising or consulting, but only upon case-by-case approval);

2. The registered capital must be fully subscribed; at least 25% must be paid in full prior to registration completion, supported by official bank proof;

3. The registered address must be a genuine commercial property located within Thailand; residential addresses are not permitted. The landlord must sign a “Letter of Address Confirmation,” which must be notarized.

Core Registration Process

1. Company name search and reservation Submit three alternative names via the DBD official website; the system performs real-time screening, and approved names are reserved for 30 days;

2. Execution of the Memorandum of Association (MOA) and Articles of Association Must be signed in person by all shareholders. Foreign shareholders must either obtain consular legalization from a Thai embassy or consulate abroad, or sign before a Thai notary public in Thailand;

3. Submission of the registration application to the DBD Includes the Name Reservation Approval Letter, MOA/Articles of Association, identity documents of shareholders and directors, address verification documents, and bank proof of paid-in capital;

4. Collection of the Company Affirmation Certificate and Tax Identification Number (PP.20) Processing typically takes 5-10 working days. Both electronic and physical versions hold equal legal validity.

Essential Document Checklist

1. Copy of the biographical page and most recent Thai entry stamp page of each foreign shareholder’s passport (translation and notarization required);

2. Front-and-back copies of Thai shareholders’ national ID cards;

3. Police clearance certificates for all directors (issued by the competent authority in the home country for foreign nationals; valid for six months from issuance date);

4. Lease agreement, landlord’s ID card copy, and notarized Letter of Consent for Use of Address;

5. Bank-issued proof of paid-in capital clearly specifying the fund purpose as “Registered Capital.”

Common Pitfalls to Avoid

1. Misconception that BOI-promoted enterprises are exempt from the Thai shareholder requirement While the Board of Investment (BOI) offers partial relaxation of foreign ownership restrictions, basic DBD shareholder structure requirements still apply to all standard registrations;

2. Use of outdated MOA/Articles templates As of 2025, the DBD mandates inclusion of data protection clauses (i.e., PDPA compliance statements) in all newly filed charters;

3. Neglect of post-incorporation obligations Within seven days after incorporation, the company must report its authorized representative(s) to the Revenue Department; within 30 days, it must complete initial accounting system registration. Failure to comply will incur penalties.

The above outlines the core factual requirements for registering a company in Thailand. If you have further questions-or wish to explore sector-specific market access rules, tax filing timelines, or annual compliance requirements-we recommend consulting the official English-language publications on the Department of Business Development (DBD) website directly, or engaging a licensed Thai Certified Public Accountant to conduct a pre-submission compliance review of your documentation.