Age of majority in Japan (2026)

Last reviewed: 7 November 2026

In short: Japan sets adulthood at 18, with the right to vote and the minimum marriage age also at 18. A person under 14 is not punishable under the Penal Code.

RuleWhat applies
Age of majorityLegal adulthoodA person is an adult at 18 years of age (Civil Code, Article 4). [1]
Voting age (national elections)Legal adulthoodA Japanese national aged 18 or older has the right to vote in elections for the House of Representatives and the House of Councillors. [2]
Minimum age to marryLegal adulthoodMarriage cannot be contracted until a person has reached 18 years of age (Civil Code, Article 731). [3]
Age of criminal responsibilityLegal adulthoodThe act of a person under 14 years of age is not punishable (Penal Code, Article 41). [4]

Sources

  1. e-Gov Hōrei Kensaku (Digital Agency): 民法 (Civil Code), 第四条 (consulted 7 November 2026) · all sources
  2. e-Gov Hōrei Kensaku (Digital Agency): 公職選挙法 (Public Offices Election Act), 第九条 (consulted 7 November 2026) · all sources
  3. e-Gov Hōrei Kensaku (Digital Agency): 民法 (Civil Code), 第七百三十一条 (consulted 7 November 2026) · all sources
  4. e-Gov Hōrei Kensaku (Digital Agency): 刑法 (Penal Code), 第四十一条 (consulted 7 November 2026) · all sources

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General information, not legal advice. Rules change: check the official source before you fly or ride.