Japanese Citizenship (Naturalization) — Complete Guide for Foreigners
Japan does not allow dual citizenship for adults. Naturalization means giving up your previous nationality — a significant decision. Here’s everything you need to know before applying. Basic Requirements To be eligible for naturalization, you generally need to meet all of the following: Requirement Details Continuous residence 5+ years living in Japan (uninterrupted) Age 20+ years old (Japan’s age of majority) Good conduct No criminal record in Japan or abroad Financial stability Able to support yourself and dependents Willingness to renounce Give up your current nationality Japanese language N2 equivalent or above recommended (not officially required but expected) Special Cases with Shorter Residency Requirements Some applicants can qualify with fewer years of residence: ...