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Thai Citizenship & Naturalization
Blue-book PR → Thai passport — naturalization, by-descent, and by-marriage routes.
Quick Answer
5-year PR (or 3 years married to Thai). Thai language + national anthem test required. Gov. fees ~THB 15,000. Full-service THB 385,000+. Timeline 3–7 years.
Services
- ✓ Naturalization (PR-based)
- ✓ By-descent (Thai parent)
- ✓ By-marriage (Thai spouse)
- ✓ Thai language + reading coaching
- ✓ National anthem coaching
- ✓ Special Branch interview prep
- ✓ Ministry of Interior filing
- ✓ Cabinet & Royal follow-through
- ✓ Renunciation-of-original counsel
- ✓ Thai passport application
FAQ
- Who qualifies for Thai citizenship (naturalization)?
- PR holders 5+ years (or 3 years if married to Thai) — with income THB 80k/month (or 40k if PR by marriage), Thai language fluency (speaking + reading + national anthem), and no criminal record. Male applicants under 40 face reserve conscription liability.
- Naturalization vs by-descent — differences?
- By-descent (jus sanguinis): automatic through Thai parent — we register at Amphur/embassy. Naturalization: 5-year PR path. By-marriage: available to spouses of Thai men (5 years marriage + PR), and increasingly to spouses of Thai women.
- How long does naturalization take?
- 3–7 years from application submission (Special Branch + Interior Ministry + Cabinet + Royal endorsement). Language + anthem test in year 1; approval waves in years 3–7.
- Cost?
- Government fees: THB 5,000 (application) + THB 10,000 (grant fee for adults). Full-service: THB 385,000–650,000 including Thai-language + anthem coaching, interview prep, ministry follow-through.
Contact: 083-249-4999 · LINE @NYC168 · contact@ilc.ltd