Official Links & Tools

Primary Government Agencies

Department of Business Development (DBD)¹

Company Registration and Corporate Affairs

Website: www.dbd.go.th
English Portal: Available with translation services
Key Services: e-Registration, annual filings, business certificates, company searches

Digital Services:

e-Registration System: Online company registration portal
e-Certificate Portal: encert.dbd.go.th - Digital certificates and extracts
e-Filing System: Annual returns and document amendments
Company Search: Public database of registered companies

Contact Information:

Address: 563 Nonthaburi Road, Bang Kraso, Mueang Nonthaburi District, Nonthaburi 11000
Call Center: 1570 (24/7 automated services)
Email: [email protected]

Board of Investment (BOI) / OSOS²

Investment Promotion and One-Stop Services

Website: osos.boi.go.th
English Support: Full English portal and services
Key Services: BOI promotion, Foreign Business License, one-stop approvals

Essential Resources:

Investment Promotion Guide 2025: Download PDF
OSOS Application Portal: Integrated government service applications
Investment Opportunity Database: Sector-specific investment guides
FBL Application System: Foreign Business License processing

Regional Offices:

Bangkok: 555 Vibhavadi Rangsit Road, Chatuchak, Bangkok 10900
Eastern Seaboard: Laem Chabang, Chonburi (EEC coordination)
Northern Region: Chiang Mai office for regional investments

Revenue Department (RD)³

Tax Registration and Compliance

Website: www.rd.go.th/english/index-eng.html
VAT Information: VAT Overview Page
Key Services: Tax registration, VAT, corporate income tax, e-filing

Online Services:

e-Filing Portal: Electronic tax return submission
e-Tax Invoice System: Digital invoicing compliance
Tax Payment Gateway: Online tax payment services
Taxpayer Services: Account status and compliance checking

Taxpayer Assistance:

Call Center: 1161 (Thai and English support)
Walk-in Centers: Located at major RD offices nationwide
Online Chat: Available during business hours
Email Support: Available for complex inquiries

Employer and Employee Social Security

Website: www.sso.go.th/wpr/home_eng.jsp?lang=en
English Portal: Comprehensive English language support
Key Services: Employer registration, contribution processing, benefits administration

Digital Platforms:

e-Service Portal: Online registration and filing
SSO Mobile App: Contribution payments and benefit tracking
Hospital Network Database: Find SSO-affiliated medical providers
Benefit Calculator: Estimate benefits and contributions

Support Services:

Call Center: 1506 (multilingual support)
Regional Offices: Located in all 77 provinces
Employer Training: Regular seminars and workshops
Publications: Multilingual guides and handbooks

Ministry of Labour (MOL)⁵

Employment Law and Work Permits

Website: www.mol.go.th/en/
English Support: Available for major services
Key Services: Labor law guidance, minimum wage updates, workplace safety

Department of Employment:

Work Permit Services: Foreign worker permit applications
WP.3 Form: Download PDF
Employer Registration: Foreign worker employer requirements
Labor Market Information: Employment statistics and trends

Key Resources:

Labor Protection Database: Workplace safety and rights information
Minimum Wage Updates: Current provincial wage rates
Foreign Worker Guidelines: Comprehensive procedural manuals
Industry-Specific Guidance: Sector-specific employment regulations

Specialized Government Resources

Ministry of Commerce (MOC)⁶

Foreign Business Oversight and Trade

Website: www.moc.go.th/en/
Key Services: Foreign Business Act compliance, trade regulations, commercial dispute resolution

Trade and Commerce Resources:

Trade Statistics Database: Import/export data and trends
Foreign Business Monitoring: FBA compliance and licensing updates
Commercial Registration: Business name reservations and trademark services
International Trade: Trade agreement information and export promotion

Bank of Thailand (BOT)

Foreign Exchange and Financial Regulations

Website: www.bot.or.th/english/
Key Services: Foreign exchange regulations, banking oversight, economic data

Essential Services:

Foreign Exchange Manual: Complete FX regulation guide
Economic Statistics: GDP, inflation, and business indicators
Financial Institution Directory: Licensed banks and financial services
Regulatory Updates: Banking and financial sector changes

Legal and Treaty Resources

Foreign Business Act (FBA) Reference⁷

Complete Legal Framework

UNCTAD Source: FBA Full Text
Coverage: Complete law with explanations and interpretations
Updates: Regular updates reflect legal amendments and court decisions

Treaty of Amity (US Investors)⁸

US-Thailand Business Relations

US Embassy Guide: Treaty Procedures PDF
Coverage: Complete procedural guide for US investors
Requirements: Detailed citizenship and business structure requirements

Thailand-US Business Council

Bilateral Business Support

Website: Information and advocacy for US-Thailand business relations
Services: Networking, advocacy, business development support
Resources: Market intelligence and regulatory guidance

Professional and Industry Resources

Federation of Accounting Professions (FAP)

Accounting Standards and Certification

Website: www.fap.or.th
Services: Auditor licensing, accounting standards, professional development
Standards: Thai Financial Reporting Standards (TFRS) and updates

Thai Institute of Directors (IOD)

Corporate Governance and Director Training

Website: Corporate governance best practices and director certification
Training: Professional development programs for executives and directors
Resources: Governance guidelines and compliance frameworks

Stock Exchange of Thailand (SET)

Capital Markets and Listed Company Requirements

Website: www.set.or.th
Services: Listing requirements, market data, investor relations
Corporate Governance: Enhanced disclosure and governance requirements

Digital Tools and Calculators

Revenue Department Tools:

Tax Calculator: Corporate income tax estimation
VAT Calculator: VAT liability and input credit calculations
Withholding Tax Calculator: Rate and obligation determination

SSO Benefit Calculators:

Contribution Calculator: Employer and employee contribution estimates
Benefit Estimator: Medical and cash benefit projections
Retirement Planning: Old-age pension calculations

Business Cost Estimators

Setup Cost Calculators:

Registration Cost Estimator: Government fees and professional service costs
Capital Requirement Calculator: Minimum capital for foreign ownership
Work Permit Cost Calculator: Total costs for foreign employee setup

Compliance Calendars

Government Deadline Trackers:

DBD Compliance Calendar: Annual filing and update deadlines
Tax Calendar: Monthly and annual tax obligation schedules
SSO Calendar: Contribution and reporting deadlines
Labor Calendar: Minimum wage updates and regulatory changes

Mobile Applications

Government Mobile Apps

DBD Mobile App:

Company registration services
Document status tracking
Certificate downloads
News and updates

RD e-Tax Mobile:

Tax return filing
Payment processing
Account status checking
Deadline reminders

SSO Mobile App:

Contribution payments
Benefit status checking
Hospital network search
Claims tracking

Emergency and Support Contacts

24/7 Hotlines

DBD Call Center: 1570 (company registration support)
Revenue Department: 1161 (tax inquiry and assistance)
SSO Hotline: 1506 (social security support)
Tourist Police: 1155 (business visitor assistance)

Business Support Services

Thailand Board of Investment Hotline: +66-2-537-8111 One-Stop Service Center (OSOS): Comprehensive business setup assistance Foreign Business Help Desk: Ministry of Commerce business inquiry line

Professional Referral Services

Law Society of Thailand: Licensed legal practitioner directory Thai Institute of CPAs: Certified public accountant referrals Association of Thai Industries: Industry-specific business support

Sources:

Department of Business Development - Official corporate registration portal
Board of Investment OSOS - Investment promotion and one-stop services
Revenue Department - Tax administration and compliance
Social Security Office - Social security services and information
Ministry of Labour - Employment law and work permit services
Ministry of Commerce - Foreign business and trade regulations
UNCTAD FBA Reference - Complete Foreign Business Act text
US Embassy Treaty Guide - Treaty of Amity procedures

Usage Note: All government websites offer varying levels of English language support. For complex matters, professional advisors with Thai language capabilities are recommended. Website structures and URLs may change; always verify links and bookmark updated pages for regular use.