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Starting a Business in Thailand
Step-by-step guide to company registration, Foreign Business Act compliance, and ongoing requirements.
Updated 2026
Overview
Thailand offers various structures for foreign investors to establish businesses, but the Foreign Business Act creates significant restrictions on foreign ownership in many sectors. This guide explains your options, the registration process, and ongoing compliance requirements.
Process Steps
Choose Business Structure
Select the appropriate legal entity for your business.
What Happens
- Thai Limited Company (most common) - requires Thai shareholders
- Branch Office - for existing foreign companies, restricted activities
- Representative Office - marketing and liaison only, cannot generate revenue
- BOI-promoted company - special privileges for qualifying investments
- Treaty of Amity company (US citizens) - allows majority foreign ownership
Tips
- Consider Foreign Business Act restrictions for your industry
- BOI promotion can allow 100% foreign ownership in many sectors
- Consult a lawyer before choosing structure
Reserve Company Name
Register your proposed company name with the Department of Business Development.
What Happens
- Name must be unique and not similar to existing companies
- Thai and English names required
- Certain words restricted or require approval
- Reserved name valid for 30 days
Tips
- Prepare alternative names in case first choice is rejected
- Avoid names suggesting government affiliation
Prepare Incorporation Documents
Draft and compile required legal documents.
What Happens
- Memorandum of Association (objectives, share structure)
- Articles of Association (governance rules)
- List of shareholders with nationality and shareholding
- Director appointment and signatures
- Registered office address (must be actual premises)
Tips
- Minimum 3 shareholders required (can be 2 for certain structures)
- At least one director must be Thai or have work permit
- Registered capital should reflect business needs
Register the Company
Submit documents and register with DBD.
What Happens
- Submit to Department of Business Development (DBD)
- Pay registration fees (based on capital)
- Receive company registration certificate
- Obtain taxpayer identification number
Tips
- Online registration available for some structures
- Original documents and certified copies required
Foreign Business License (if required)
Apply for FBL if engaging in restricted activities.
What Happens
- Required for foreigners engaging in List 2 or 3 activities
- Detailed business plan and financial projections needed
- Minimum capital requirements apply
- Committee review and approval required
Tips
- BOI promotion is often faster alternative
- Some activities prohibited entirely for foreigners
- Substantial capital injection required
Post-Registration Compliance
Ongoing legal and regulatory requirements.
What Happens
- Register for VAT (if turnover exceeds 1.8M THB/year)
- Social security registration for employees
- Annual audited financial statements required
- Annual shareholder meeting and filings
- Monthly/quarterly tax filings
Tips
- Retain qualified accountant and auditor
- Calendar all compliance deadlines
- Late filings incur penalties
Your Rights
- Right to establish business under Thai law
- Protection of intellectual property through registration
- Access to Thai courts for contract enforcement
- Ability to sponsor work permits for foreign employees
- BOI incentives available for qualifying investments
Common Mistakes to Avoid
- Using nominees to circumvent foreign ownership rules (illegal)
- Underestimating capital requirements
- Failing to properly structure shareholder agreements
- Ignoring ongoing compliance requirements
- Not obtaining proper licenses before operations
- Mixing personal and business finances
When to Seek Legal Help
- Before choosing business structure
- When preparing incorporation documents
- If your industry has foreign ownership restrictions
- For BOI promotion applications
- When hiring employees
- For any disputes or regulatory issues
Related Guides
Professional Legal Assistance
This guide is educational. For your specific situation, consult a qualified lawyer.
Anglo Siam Legal provides experienced legal services across Thailand for both Thai nationals and foreigners.
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