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Thai legal advice for your family, property and business. Work with our team in English, French or Thai, with the scope and fees agreed before work starts.
Thai lawyer of record: Wichuda Atthamethakon, LL.M., Thai Bar Licence 3149/2556. Managing Director: Sebastien H. Brousseau, LL.B., B.Sc., Barreau du Quebec. Fixed fees, quoted before we start. We answer within 24 hours.
Updated every week
Thai law changes every week. So does this site.
New Supreme Court decisions and Royal Gazette publications are added to Vortex, our research corpus, every week. The annotated codes, the decision library, the legal news and the guides on this site are then reviewed against them, section by section.
- 1. AI reads at scaleIt scans the official sources, spots what changed and checks section numbers and citations across the site.
- 2. The source decidesEach change is compared with the official text: the Royal Gazette and the Supreme Court database.
- 3. Our team curates and checksEvery update is curated and checked by our team, working with Thai lawyers registered with the Lawyers Council of Thailand. They decide what a change means for foreigners, and where a rule is unsettled, we say so.
Figures counted on 5 October 2026. They are recounted automatically every week. How we count · This week in Thai law
Fixed fees, published before you call
- Bilingual Thai willfrom 3,900 THB
- Prenuptial agreementfrom 8,900 THB
- Uncontested divorcefrom 9,900 THB
- Registered usufructfrom 3,900 THB
- Condominium due diligencefrom 19,900 THB
- Notarised documentfrom 950 THB
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Thai Law, Annotated · ประมวลกฎหมายไทย พร้อมคำอธิบาย
We didn’t just summarise the codes. We annotated them.
The core Thai legal codes, section by section, each one cross-referenced to Supreme Court decisions and explained in plain English beside the authoritative Thai. Free to read.
Civil & Commercial Code
ประมวลกฎหมายแพ่งและพาณิชย์
1,846 sections · annotatedOpen the Code →Criminal Code (Bilingual)
ประมวลกฎหมายอาญา
448 sections · Thai and English side by sideOpen the Code →Land Code
ประมวลกฎหมายที่ดิน
140 sections · Thai verbatim + Council of State EnglishOpen the Code →Foreign Business Act
พ.ร.บ. การประกอบธุรกิจของคนต่างด้าว
What foreigners may and may not doRead the guide →Supreme Court Decisions
คำพิพากษาฎีกา (คัดสรร)
Curated Dika rulings · Thai with English analysisBrowse cases →Built by Sebastien H. Brousseau, LL.B., B.Sc. Managing Director of ThaiLawOnline since 2006. 20+ years on Thai law. The English translations are unofficial; the Thai text governs.
Thai Legal Research, answered in 24 hours
Any Thai-law question researched from our 141,000+ document Vortex database and double-checked by our lawyers, the statute and the Supreme Court decisions explained, in any language, from ฿4,900. · งานวิจัยกฎหมายไทยทุกหัวข้อ ภายใน 24 ชั่วโมง เริ่มต้น 4,900 บาท
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Comprehensive legal solutions for every aspect of living, working, and investing in Thailand.
Family Law
Marriage, divorce, prenuptial agreements, child custody, adoption, and inheritance matters for international families.
Learn more →Business Law
Company registration, BOI applications, Foreign Business Act licensing, corporate governance, and commercial contracts.
Learn more →Property Law
Due diligence, condominium purchases, lease agreements, usufruct registration, and land title verification.
Learn more →Criminal Law
Criminal defense, bail applications, police interviews, court representation, and appeals for foreign nationals.
Learn more →Immigration
Work permits, visa extensions, permanent residency, 90-day reports, TM30, and all immigration compliance.
Learn more →Tax & Accounting
Personal income tax, corporate tax, VAT registration, tax ID, and comprehensive accounting services for expats.
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Real feedback from expatriates and investors we've helped navigate Thai law.
Great service and brilliant value for money. Will try and recommend you to as many of my friends as possible.
The process was very smooth and fast with very reasonable costs. I was able to register the Usufruct at the local land office without any problems.
My many thanks for all your assistance over the years and helping me navigate the Thai legal system, making sure all my property dealings were 100% legal.
Fast and clear communication. They answered my questions the same day and were flexible in adapting my wishes. A smooth process with a positive outcome.
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Since 2006, we've helped thousands of expatriates, investors, and international families navigate the complexities of Thai law. Our bilingual team delivers clear, practical legal solutions with full transparency on fees.
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