A Complete Guide to Registering a Company in Thailand: Step-by-Step Instructions for Establishing Your Business from Scratch

Thinking of setting up a company in Thailand but feeling overwhelmed by the local registration process? Don’t worry-this isn’t a generic, theoretical checklist. It’s a practical, step-by-step roadmap distilled from real-world registration cases, the latest policy updates (as of Q3 2025), and frequently encountered operational hurdles. Registering a company in Thailand involves far more than simply filling out forms and paying fees. It requires careful assessment of entity eligibility, thoughtful capital structure design, and diligent on-the-ground compliance-oversights at any stage may lead to application rejection or complications down the line, such as difficulties opening a corporate bank account or completing tax registration.

First, Determine Which Entity Type Is Right for You

The most common business structure in Thailand is the Limited Company, suitable for foreign-owned or joint-venture operations. If your activities are limited to liaison or market research functions, you may establish a Representative Office-but it cannot generate revenue directly. Other options include partnerships and branch offices, each with distinct eligibility criteria and operational scope. Your choice depends on several key factors: whether foreign shareholders hold more than 50% equity, whether you plan to hire local staff, and whether your business falls within sectors subject to restrictions (e.g., media, transportation, or real estate brokerage).

Essential Registration Requirements You Must Meet

1. At least one Thai national or Thai legal entity must serve as a shareholder. While there is no statutory cap on foreign ownership, certain industries remain restricted under the Foreign Business Act’s “negative list.”

2. The minimum registered capital is THB 150,000, fully payable within two years of incorporation-with at least 25% required to be deposited upon company formation.

3. At least one Director must be a natural person residing permanently in Thailand and must provide proof of address and a valid residence permit.

4. The company name must be pre-approved by the Ministry of Commerce. It must be unique (not identical to any existing registered entity) and include either “Company Limited” or its abbreviation “Co., Ltd.”

5. The registered office address must be a verifiable commercial premises; residential addresses are generally not accepted. A signed lease agreement and a letter of consent from the property owner are required.

The Registration Process: Five Key Steps

1. Name Reservation & Preliminary Screening: Submit three preferred names online to the Ministry of Commerce. Results are typically issued within two business days.

2. Preparation of Shareholder and Director Documents: Includes notarized and legalized passports, proof of address, share subscription agreements, and a draft of the company’s Articles of Association.

3. Submission of Registration Application: Upload all documents via the Ministry’s e-Registration system and pay the registration fee (approximately THB 7,500).

4. Issuance of Certificate of Incorporation: Upon approval, the official Certificate of Incorporation is issued within three to five working days.

5. Post-Registration Obligations: Complete tax registration (to obtain a Tax ID), open a corporate bank account, and register employee information with the Department of Labor (if applicable).

Critical Details Often Overlooked

You must file your first tax notification with the Revenue Department within 30 days of company registration. For bank account opening, the authorized Director must appear in person and present original documents-including the Certificate of Incorporation, Articles of Association, and Board Resolution. If you intend to apply for Board of Investment (BOI) privileges, the BOI project application and formal approval letter must be secured before company registration-not retroactively.

The above outlines the core stages and practical considerations involved in establishing a company in Thailand-from initial eligibility assessment through to official registration and license issuance. Should you have specific questions-or wish to explore sector-specific entry requirements, BOI application coordination, or ongoing accounting and tax compliance-we recommend tailoring your compliance strategy to your business model and operational scope.