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: Per the current Immigration Bureau rate (verify with Immigration directly)
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
3,307 answered questions written by our lawyers and translators, grouped by service. 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.
500 answered questions
- Visa filing — 160 destinations
Tourist, business, study, work, marriage, family, retirement and transit visas across Schengen, UK, US, Australia, Canada, Asia and the Middle East.
550 answered questions
- Police clearance certificate
Royal Thai Police clearance certificates for applicants in Thailand and abroad, with translation, MFA legalization and destination-embassy filing.
500 answered questions
Official sources — visa & work permit
The information on this page follows the official sources below. Always check the latest version before you file.
- Immigration Bureau — visas, 90-day reporting, TM.30— Immigration Bureau
- Thai e-Visa Official Portal— MFA Thailand
- Thailand Digital Arrival Card (TDAC)— Immigration Bureau
- Department of Employment — work permits for foreigners— Department of Employment
- Board of Investment (BOI) / LTR Visa— Thailand Board of Investment
- Department of Consular Affairs — document legalisation— Ministry of Foreign Affairs
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
- Full service index
Contact us by phone, LINE or email for a free initial enquiry and a quote after document review. Timing depends on the work and relevant authorities.
General information before proceeding: Confirm current requirements with the receiving authority before using your documents. This page is not a legal opinion for your individual case — meet the team · editorial policy
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The correct order of steps before sending documents abroad
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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 the current official rate 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.