Naturalization

Generally, five or more continuous years of residence in Japan

Good conduct, including taxes, pension, and traffic record

Stable livelihood through the applicant or household

Basic Japanese reading and writing ability

Ability to give up the original nationality in principle

Unpaid or late tax, pension, or social insurance

Traffic violations, criminal record, or immigration issues

Unstable income or weak income outlook after job change

Inconsistencies in family records or foreign documents