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Dual Citizenship Thailand × South Korea
Quick Answer
Conditional — Multiple Citizenship Act 2011: foreign naturalisers must sign 'Non-Exercise of Foreign Nationality' pledge.
Traps to watch
- ⚠️ Males aged 18–37 must complete military service (18 months) before opting for foreign nationality
- ⚠️ Foreign acquisition before military = banned from Korea + Korean nationality revoked
- ⚠️ Thai-Korean dual-heritage must choose by age 22 (males: 18 if unenlisted)
- ⚠️ F-4 (Overseas Korean Visa) alternative for renouncers — renewable 5-year
Taxation
Residence-based (183 days) · progressive 6–45% + local income tax 10%
Military
18 months mandatory for males 18–37 — required before renunciation
Renunciation
KRW 30,000 · Ministry of Justice Korea · 6–12 months
Typical clients
Thai-Korean dual-heritage, K-industry expats, spouses seeking F-4
Other countries
Consult: 083-249-4999 · LINE @NYC168 · contact@ilc.ltd
Consultation THB 8,500 · Full-service THB 55,000–185,000






