Dual Citizenship Consultation
ปรึกษาเรื่องสองสัญชาติ (Dual Citizenship) · § Status
Quick Answer
Analysis of both nationality laws (Thai Section 22 + home country), plus tax residency, estate, and conscription implications.
Timeline: 1–3 consultation sessions (2–6 weeks).
Official fee: No official fee (beyond registering an overseas-born Thai child).
Legal Basis
Nationality Act B.E. 2508 · Thai law permits dual nationality for citizens by birth; naturalized citizens must renounce prior nationality (Section 13).
Who Needs This
Thai-foreign children, Thais born abroad, Thai nationals who naturalized overseas, prospective naturalized Thais.
Required Documents
- Birth certificates (Thai + foreign)
- Both passports
- House registration
- Parents' nationality proof
- Residency / tax records
Common Pitfalls
- Section 22 can strip Thai nationality if you don't affirm at majority
- Male dual nationals still owe Thai conscription
- Some countries (China, India) forbid dual nationality outright
Typical Use-cases
- Half-Thai children (renewing Thai passport)
- Thais gaining US citizenship
- Registering foreign-born Thai children
- Cross-border tax planning
FAQ
- Do foreign-born children inherit Thai nationality?
- Yes by jus sanguinis if either parent is Thai.
- Must a Thai with a US passport declare it?
- No formal declaration; but you must enter/exit Thailand on the Thai passport.
Other Immigration Services
Request a quote — Call 083-2494999 · LINE @NYC168 · contact@nyclegal.co.th
Knowledge bases behind every service
7 knowledge bases, 4,882 keywords and 3,057 answered questions written by our lawyers and translators. Free to read, no sign-up.
- Certified translation — every language
Certified translation across civil, academic, corporate, contractual, financial, medical, technical and IP documents — with the Notary → MFA → embassy legalization chain handled end to end.
Thai–English THB 500–1,200/page · other languages THB 800–2,500/page
1,000 keywords · 500 questions · 16 clusters
- Visa filing — 195 destinations
Tourist, business, study, work, marriage, family, retirement and transit visas across Schengen, UK, US, Australia, Canada, Asia and the Middle East.
Filing service THB 6,500–35,000 (embassy fees excluded)
500 keywords · 300 questions · 16 clusters
- Police clearance certificate
Royal Thai Police clearance certificates for applicants in Thailand and abroad, with translation, MFA legalization and destination-embassy filing.
Proxy-handling fee quoted per case · free consultation
500 keywords · 500 questions · 17 clusters
Official sources — visa & work permit
The information on this page follows the official sources below. Always check the latest version before you file.
- สำนักงานตรวจคนเข้าเมือง — วีซ่า รายงานตัว 90 วัน TM.30— Immigration Bureau
- Thai e-Visa Official Portal— MFA Thailand
- Thailand Digital Arrival Card (TDAC)— Immigration Bureau
- กรมการจัดหางาน — ใบอนุญาตทำงานคนต่างด้าว— Department of Employment
- สำนักงานคณะกรรมการส่งเสริมการลงทุน (BOI) / LTR Visa— Thailand Board of Investment
- กรมการกงสุล — บริการรับรองเอกสาร (นิติกรณ์)— กระทรวงการต่างประเทศ
Related services
Most document work runs across several steps — jump straight to the next one you need.
- Thailand visa
- Work permit
- Police clearance certificate
- Certified translation
- Expat & VIP services
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For an exact quote and turnaround, call, LINE or email our team on any business day.
Expert reviewed: This page is written and checked by practitioners with 15+ years of hands-on filing experience, sourced from the responsible authorities and signed off by a second reviewer before publication — meet the team · editorial policy
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- Choosing a certified translation provider
How to pick a translator accepted by consular, embassy and receiving bodies
- Services for expats living in Thailand
Signature certification, residence, marriage and everyday paperwork
- Notary Public and consular legalization
The correct order of steps before sending documents abroad
- Choosing the right visa and work permit
Compare visa categories and the documents each one needs translated
- Translation by language
English, Chinese, Japanese, European, Arabic, Russian and embassy rules
- Specialized translation
Contracts, financial statements, MSDS, ISO and BOI filings
Talk to us first: 083-2494999 · LINE @NYC168 · contact@nyclegal.co.th
Frequently asked questions
- What is the DTV and who realistically qualifies?
- The Destination Thailand Visa is a five-year multiple-entry visa allowing stays of up to 180 days per entry, extendable once per entry by a further 180 days at an immigration office. It targets remote workers employed or contracted outside Thailand, freelancers with foreign clients, and participants in Thai soft-power activities such as Muay Thai training, cooking courses or medical treatment, and it requires evidence of at least THB 500,000 in available funds.
- How is the LTR visa different from the DTV?
- The Long-Term Resident visa is a ten-year visa administered by the Board of Investment for wealthy global citizens, wealthy pensioners, work-from-Thailand professionals and highly skilled professionals, and it bundles a digital work permit, a flat 17% personal income tax rate for the skilled-professional category and annual instead of 90-day reporting. The DTV is cheaper and faster but grants no work permit for Thai-sourced work and no tax privileges.
- Can I work in Thailand on a tourist or DTV visa?
- No — any work performed inside Thailand requires a work permit or an equivalent digital work authorization, regardless of where the employer or client is located. The DTV is intended for work delivered to foreign employers and clients; taking on Thai clients or a Thai employer requires switching to a Non-B or LTR pathway with proper authorization.
- What most often causes a Schengen or UK visa refusal from Thailand?
- The dominant causes are weak evidence of ties to Thailand, bank statements that show a sudden unexplained deposit shortly before filing, inconsistencies between the application form and supporting documents, insufficient or non-compliant travel insurance, and an itinerary that does not match the stated purpose. Refusals are recorded, so a re-application must directly address the refusal ground rather than simply resubmit the same file.