# 国民年金法 / National Pension Act — 第十二条 (Article 12) - Law: 国民年金法 (National Pension Act), 昭和三十四年法律第百四十一号 - English title "National Pension Act": Ministry of Justice translation database, which lists the title - Kind: Act — the distinction between 法律 (Act), 政令 (Cabinet Order), 省令 (Ministerial Order) and 条例 (local ordinance) decides who may issue it and what it may say. - Provision: 第十二条 (Article 12)（届出） — address `art-12` - Text in force since: 2026-10-01 - URL (the page that opens at this provision): https://japanlaw.org/en/national-pension-act/art-12 - Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/334AC0000000141/art-12 - Every provision below carries its address and both URLs on the line under it. - Japanese text: e-Gov 法令検索, Digital Agency (デジタル庁). English: as marked on each line below. Only the Japanese as published by the government has legal effect; the text below is a copy of it. Every English rendering below is a translation and says which kind: the Ministry of Justice's translation, or this site's machine translation, whose model and date the Sources list names. They are never merged and never substituted for one another. --- ### 第十二条（届出） — Notification caption: machine translation, not official art-12 · https://japanlaw.org/en/national-pension-act/art-12 · https://japanlaw.org/l/334AC0000000141/art-12 **第一項** 被保険者（第三号被保険者を除く。次項において同じ。）は、厚生労働省令の定めるところにより、その資格の取得及び喪失並びに種別の変更に関する事項並びに氏名及び住所の変更に関する事項を市町村長に届け出なければならない。 art-12/par-1 · https://japanlaw.org/en/national-pension-act/art-12/par-1 · https://japanlaw.org/l/334AC0000000141/art-12/par-1 An insured person (excluding a category 3 insured person; the same applies in the following paragraph) must notify the mayor of the municipality of matters concerning the acquisition and loss of status, and change of category, and matters concerning change of name and domicile, as specified by Order of the Ministry of Health, Labour and Welfare. machine translation, not official **第二項** 被保険者の属する世帯の世帯主（以下単に「世帯主」という。）は、被保険者に代つて、前項の届出をすることができる。 art-12/par-2 · https://japanlaw.org/en/national-pension-act/art-12/par-2 · https://japanlaw.org/l/334AC0000000141/art-12/par-2 The head of the household to which an insured person belongs (hereinafter simply referred to as the "head of household") may make the notification under the preceding paragraph in place of the insured person. machine translation, not official **第三項** 住民基本台帳法（昭和四十二年法律第八十一号）第二十二条から第二十四条まで、第三十条の四十六又は第三十条の四十七の規定による届出があつたとき（当該届出に係る書面に同法第二十九条の規定による付記がされたときに限る。）は、その届出と同一の事由に基づく第一項の規定による届出があつたものとみなす。 art-12/par-3 · https://japanlaw.org/en/national-pension-act/art-12/par-3 · https://japanlaw.org/l/334AC0000000141/art-12/par-3 When a notification has been made under the provisions of Article 22 through Article 24, Article 30-46, or Article 30-47 of the Residential Basic Book Act (Act No. 81 of 1967) (limited to a case where a note has been added, under the provisions of Article 29 of that Act, to the document pertaining to that notification), the notification under the provisions of paragraph (1) based on the same grounds as that notification is deemed to have been made. machine translation, not official **第四項** 市町村長は、第一項又は第二項の規定による届出を受理したとき（氏名及び住所の変更に関する事項の届出であつて厚生労働省令で定めるものを受理したときを除く。）は、厚生労働省令の定めるところにより、厚生労働大臣にこれを報告しなければならない。 art-12/par-4 · https://japanlaw.org/en/national-pension-act/art-12/par-4 · https://japanlaw.org/l/334AC0000000141/art-12/par-4 When the mayor of the municipality has accepted a notification under the provisions of paragraph (1) or paragraph (2) (excluding a case where the mayor has accepted a notification concerning a change of name or domicile that is specified by Order of the Ministry of Health, Labour and Welfare), the mayor must report this to the Minister of Health, Labour and Welfare, as specified by Order of the Ministry of Health, Labour and Welfare. machine translation, not official **第五項** 第三号被保険者は、厚生労働省令の定めるところにより、その資格の取得及び喪失並びに種別の変更に関する事項並びに氏名及び住所の変更に関する事項を厚生労働大臣に届け出なければならない。ただし、氏名及び住所の変更に関する事項であつて厚生労働省令で定めるものについては、この限りでない。 art-12/par-5 · https://japanlaw.org/en/national-pension-act/art-12/par-5 · https://japanlaw.org/l/334AC0000000141/art-12/par-5 A category 3 insured person must notify the Minister of Health, Labour and Welfare of matters concerning the acquisition and loss of status, and change of category, and matters concerning change of name and domicile, as specified by Order of the Ministry of Health, Labour and Welfare. However, this does not apply to matters concerning a change of name or domicile that are specified by Order of the Ministry of Health, Labour and Welfare. machine translation, not official **第六項** 前項の届出は、厚生労働省令で定める場合を除き、厚生年金保険法第二条の五第一項第一号に規定する第一号厚生年金被保険者（以下「第一号厚生年金被保険者」という。）である第二号被保険者の被扶養配偶者である第三号被保険者にあつては、その配偶者である第二号被保険者を使用する事業主を経由して行うものとし、同項第二号に規定する第二号厚生年金被保険者（以下「第二号厚生年金被保険者」という。）、同項第三号に規定する第三号厚生年金被保険者（以下「第三号厚生年金被保険者」という。）又は同項第四号に規定する第四号厚生年金被保険者（以下「第四号厚生年金被保険者」という。）である第二号被保険者の被扶養配偶者である第三号被保険者にあつては、その配偶者である第二号被保険者を組合員又は加入者とする国家公務員共済組合、地方公務員共済組合又は日本私立学校振興・共済事業団を経由して行うものとする。 art-12/par-6 · https://japanlaw.org/en/national-pension-act/art-12/par-6 · https://japanlaw.org/l/334AC0000000141/art-12/par-6 Except in a case specified by Order of the Ministry of Health, Labour and Welfare, the notification under the preceding paragraph is to be made: in the case of a category 3 insured person who is a dependent spouse of a category 2 insured person who is a category 1 employees' pension insured person prescribed in Article 2-5, paragraph (1), item (i) of the Employees' Pension Insurance Act (hereinafter referred to as a "category 1 employees' pension insured person"), through the employer who employs the category 2 insured person who is the spouse of that category 3 insured person; and in the case of a category 3 insured person who is a dependent spouse of a category 2 insured person who is a category 2 employees' pension insured person prescribed in item (ii) of that paragraph (hereinafter referred to as a "category 2 employees' pension insured person"), a category 3 employees' pension insured person prescribed in item (iii) of that paragraph (hereinafter referred to as a "category 3 employees' pension insured person"), or a category 4 employees' pension insured person prescribed in item (iv) of that paragraph (hereinafter referred to as a "category 4 employees' pension insured person"), through the National Public Servants Mutual Aid Association, the Local Public Servants Mutual Aid Association, or the Promotion and Mutual Aid Corporation for Private Schools of Japan, of which the category 2 insured person who is the spouse of that category 3 insured person is a member or a participant. machine translation, not official **第七項** 前項に規定する第二号被保険者を使用する事業主とは、第一号厚生年金被保険者である第二号被保険者を使用する事業所（厚生年金保険法第六条第一項に規定する事業所をいう。）の事業主（同法第二十七条に規定する事業主をいう。第百八条第三項において同じ。）をいう。 art-12/par-7 · https://japanlaw.org/en/national-pension-act/art-12/par-7 · https://japanlaw.org/l/334AC0000000141/art-12/par-7 The employer who employs a category 2 insured person as referred to in the preceding paragraph means the employer (meaning the employer prescribed in Article 27 of the Employees' Pension Insurance Act; the same applies in Article 108, paragraph (3)) of a place of business (meaning a place of business prescribed in Article 6, paragraph (1) of the Employees' Pension Insurance Act) that employs a category 2 insured person who is a category 1 employees' pension insured person. machine translation, not official **第八項** 第六項に規定する第二号被保険者を使用する事業主は、同項の経由に係る事務の一部を当該事業主が設立する健康保険組合に委託することができる。 art-12/par-8 · https://japanlaw.org/en/national-pension-act/art-12/par-8 · https://japanlaw.org/l/334AC0000000141/art-12/par-8 The employer who employs a category 2 insured person as referred to in paragraph (6) may entrust part of the affairs relating to the routing under that paragraph to a Health Insurance Society established by that employer. machine translation, not official **第九項** 第六項の規定により、第五項の届出が第二号被保険者を使用する事業主又は国家公務員共済組合、地方公務員共済組合若しくは日本私立学校振興・共済事業団に受理されたときは、その受理されたときに厚生労働大臣に届出があつたものとみなす。 art-12/par-9 · https://japanlaw.org/en/national-pension-act/art-12/par-9 · https://japanlaw.org/l/334AC0000000141/art-12/par-9 When, under the provisions of paragraph (6), the notification under paragraph (5) has been accepted by the employer who employs the category 2 insured person, or by the National Public Servants Mutual Aid Association, the Local Public Servants Mutual Aid Association, or the Promotion and Mutual Aid Corporation for Private Schools of Japan, the notification is deemed to have been made to the Minister of Health, Labour and Welfare at the time it was accepted. machine translation, not official --- ## Cites - art-12/par-1: 次項 → 国民年金法 第十二条第二項 (Article 12, paragraph (2)), art-12/par-2 — https://japanlaw.org/en/national-pension-act/art-12/par-2 · https://japanlaw.org/l/334AC0000000141/art-12/par-2 - art-12/par-2: 前項 → 国民年金法 第十二条第一項 (Article 12, paragraph (1)), art-12/par-1 — https://japanlaw.org/en/national-pension-act/art-12/par-1 · https://japanlaw.org/l/334AC0000000141/art-12/par-1 - art-12/par-3: 住民基本台帳法（昭和四十二年法律第八十一号）第二十二条から第二十四条まで → 住民基本台帳法 第二十二条 (Article 22), art-22 — https://japanlaw.org/en/residential-basic-book-act/art-22 · https://japanlaw.org/l/342AC0000000081/art-22 - art-12/par-3: 住民基本台帳法（昭和四十二年法律第八十一号）第二十二条から第二十四条まで → 住民基本台帳法 第二十三条 (Article 23), art-23 — https://japanlaw.org/en/residential-basic-book-act/art-23 · https://japanlaw.org/l/342AC0000000081/art-23 - art-12/par-3: 住民基本台帳法（昭和四十二年法律第八十一号）第二十二条から第二十四条まで → 住民基本台帳法 第二十四条 (Article 24), art-24 — https://japanlaw.org/en/residential-basic-book-act/art-24 · https://japanlaw.org/l/342AC0000000081/art-24 - art-12/par-3: 第三十条の四十六 → 住民基本台帳法 第三十条の四十六 (Article 30-46), art-30-46 — https://japanlaw.org/en/residential-basic-book-act/art-30-46 · https://japanlaw.org/l/342AC0000000081/art-30-46 - art-12/par-3: 第三十条の四十七 → 住民基本台帳法 第三十条の四十七 (Article 30-47), art-30-47 — https://japanlaw.org/en/residential-basic-book-act/art-30-47 · https://japanlaw.org/l/342AC0000000081/art-30-47 - art-12/par-3: 同法第二十九条 → 住民基本台帳法 第二十九条 (Article 29), art-29 — https://japanlaw.org/en/residential-basic-book-act/art-29 · https://japanlaw.org/l/342AC0000000081/art-29 - art-12/par-3: 第一項 → 国民年金法 第十二条第一項 (Article 12, paragraph (1)), art-12/par-1 — https://japanlaw.org/en/national-pension-act/art-12/par-1 · https://japanlaw.org/l/334AC0000000141/art-12/par-1 - art-12/par-4: 第一項 → 国民年金法 第十二条第一項 (Article 12, paragraph (1)), art-12/par-1 — https://japanlaw.org/en/national-pension-act/art-12/par-1 · https://japanlaw.org/l/334AC0000000141/art-12/par-1 - art-12/par-4: 第二項 → 国民年金法 第十二条第二項 (Article 12, paragraph (2)), art-12/par-2 — https://japanlaw.org/en/national-pension-act/art-12/par-2 · https://japanlaw.org/l/334AC0000000141/art-12/par-2 - art-12/par-6: 前項 → 国民年金法 第十二条第五項 (Article 12, paragraph (5)), art-12/par-5 — https://japanlaw.org/en/national-pension-act/art-12/par-5 · https://japanlaw.org/l/334AC0000000141/art-12/par-5 - art-12/par-6: 厚生年金保険法第二条の五第一項第一号 → 厚生年金保険法 第二条の五第一項第一号 (Article 2-5, paragraph (1), item (i)), art-2-5/par-1/item-1 — https://japanlaw.org/en/employees-pension-insurance-act/art-2-5/par-1/item-1 · https://japanlaw.org/l/329AC0000000115/art-2-5/par-1/item-1 - art-12/par-6: 同項第二号 → 厚生年金保険法 第二条の五第一項第二号 (Article 2-5, paragraph (1), item (ii)), art-2-5/par-1/item-2 — https://japanlaw.org/en/employees-pension-insurance-act/art-2-5/par-1/item-2 · https://japanlaw.org/l/329AC0000000115/art-2-5/par-1/item-2 - art-12/par-6: 同項第三号 → 厚生年金保険法 第二条の五第一項第三号 (Article 2-5, paragraph (1), item (iii)), art-2-5/par-1/item-3 — https://japanlaw.org/en/employees-pension-insurance-act/art-2-5/par-1/item-3 · https://japanlaw.org/l/329AC0000000115/art-2-5/par-1/item-3 - art-12/par-6: 同項第四号 → 厚生年金保険法 第二条の五第一項第四号 (Article 2-5, paragraph (1), item (iv)), art-2-5/par-1/item-4 — https://japanlaw.org/en/employees-pension-insurance-act/art-2-5/par-1/item-4 · https://japanlaw.org/l/329AC0000000115/art-2-5/par-1/item-4 - art-12/par-7: 前項 → 国民年金法 第十二条第六項 (Article 12, paragraph (6)), art-12/par-6 — https://japanlaw.org/en/national-pension-act/art-12/par-6 · https://japanlaw.org/l/334AC0000000141/art-12/par-6 - art-12/par-7: 厚生年金保険法第六条第一項 → 厚生年金保険法 第六条第一項 (Article 6, paragraph (1)), art-6/par-1 — https://japanlaw.org/en/employees-pension-insurance-act/art-6/par-1 · https://japanlaw.org/l/329AC0000000115/art-6/par-1 - art-12/par-7: 同法第二十七条 → 厚生年金保険法 第二十七条 (Article 27), art-27 — https://japanlaw.org/en/employees-pension-insurance-act/art-27 · https://japanlaw.org/l/329AC0000000115/art-27 - art-12/par-7: 第百八条第三項 → 国民年金法 第百八条第三項 (Article 108, paragraph (3)), art-108/par-3 — https://japanlaw.org/en/national-pension-act/art-108/par-3 · https://japanlaw.org/l/334AC0000000141/art-108/par-3 - art-12/par-8: 第六項 → 国民年金法 第十二条第六項 (Article 12, paragraph (6)), art-12/par-6 — https://japanlaw.org/en/national-pension-act/art-12/par-6 · https://japanlaw.org/l/334AC0000000141/art-12/par-6 - art-12/par-9: 第六項 → 国民年金法 第十二条第六項 (Article 12, paragraph (6)), art-12/par-6 — https://japanlaw.org/en/national-pension-act/art-12/par-6 · https://japanlaw.org/l/334AC0000000141/art-12/par-6 - art-12/par-9: 第五項 → 国民年金法 第十二条第五項 (Article 12, paragraph (5)), art-12/par-5 — https://japanlaw.org/en/national-pension-act/art-12/par-5 · https://japanlaw.org/l/334AC0000000141/art-12/par-5 ## Cited by 28 provisions cite this one. No official source publishes this direction. - 国民年金法 第六条第一項（事務の区分） — https://japanlaw.org/en/national-pension-act/art-6/par-1 · https://japanlaw.org/l/334AC0000000141/art-6/par-1 - 国民年金法 第十二条第一項（届出） — https://japanlaw.org/en/national-pension-act/art-12/par-1 · https://japanlaw.org/l/334AC0000000141/art-12/par-1 - 国民年金法 第十二条第二項（届出） — https://japanlaw.org/en/national-pension-act/art-12/par-2 · https://japanlaw.org/l/334AC0000000141/art-12/par-2 - 国民年金法 第十二条第三項（届出） — https://japanlaw.org/en/national-pension-act/art-12/par-3 · https://japanlaw.org/l/334AC0000000141/art-12/par-3 - 国民年金法 第十二条第四項（届出） — https://japanlaw.org/en/national-pension-act/art-12/par-4 · https://japanlaw.org/l/334AC0000000141/art-12/par-4 - 国民年金法 第十二条第六項（届出） — https://japanlaw.org/en/national-pension-act/art-12/par-6 · https://japanlaw.org/l/334AC0000000141/art-12/par-6 - 国民年金法 第十二条第七項（届出） — https://japanlaw.org/en/national-pension-act/art-12/par-7 · https://japanlaw.org/l/334AC0000000141/art-12/par-7 - 国民年金法 第十二条第八項（届出） — https://japanlaw.org/en/national-pension-act/art-12/par-8 · https://japanlaw.org/l/334AC0000000141/art-12/par-8 - 国民年金法 第十二条第九項（届出） — https://japanlaw.org/en/national-pension-act/art-12/par-9 · https://japanlaw.org/l/334AC0000000141/art-12/par-9 - 国民年金法 第十二条の二第二項 — https://japanlaw.org/en/national-pension-act/art-12-2/par-2 · https://japanlaw.org/l/334AC0000000141/art-12-2/par-2 - 国民年金法 第百五条第一項（届出等） — https://japanlaw.org/en/national-pension-act/art-105/par-1 · https://japanlaw.org/l/334AC0000000141/art-105/par-1 - 国民年金法 第百五条第二項（届出等） — https://japanlaw.org/en/national-pension-act/art-105/par-2 · https://japanlaw.org/l/334AC0000000141/art-105/par-2 - 国民年金法 第百五条第五項（届出等） — https://japanlaw.org/en/national-pension-act/art-105/par-5 · https://japanlaw.org/l/334AC0000000141/art-105/par-5 - 国民年金法 第百九条第一項（国民年金事務組合） — https://japanlaw.org/en/national-pension-act/art-109/par-1 · https://japanlaw.org/l/334AC0000000141/art-109/par-1 - 国民年金法 第百九条の四第一項第三号（機構への厚生労働大臣の権限に係る事務の委任） — https://japanlaw.org/en/national-pension-act/art-109-4/par-1/item-3 · https://japanlaw.org/l/334AC0000000141/art-109-4/par-1/item-3 - 国民年金法 第百十二条第一項第一号 — https://japanlaw.org/en/national-pension-act/art-112/par-1/item-1 · https://japanlaw.org/l/334AC0000000141/art-112/par-1/item-1 - 国民年金法 第百十二条第一項第二号 — https://japanlaw.org/en/national-pension-act/art-112/par-1/item-2 · https://japanlaw.org/l/334AC0000000141/art-112/par-1/item-2 - 国民年金法 第百十三条第一項 — https://japanlaw.org/en/national-pension-act/art-113/par-1 · https://japanlaw.org/l/334AC0000000141/art-113/par-1 - 国民年金法 第百十四条第一項第一号 — https://japanlaw.org/en/national-pension-act/art-114/par-1/item-1 · https://japanlaw.org/l/334AC0000000141/art-114/par-1/item-1 - 国民年金法 第百十四条第一項第三号 — https://japanlaw.org/en/national-pension-act/art-114/par-1/item-3 · https://japanlaw.org/l/334AC0000000141/art-114/par-1/item-3 - 国民年金法 第百二十七条の二第一項（準用規定） — https://japanlaw.org/en/national-pension-act/art-127-2/par-1 · https://japanlaw.org/l/334AC0000000141/art-127-2/par-1 - 国民年金法 第百三十八条第一項（準用規定） — https://japanlaw.org/en/national-pension-act/art-138/par-1 · https://japanlaw.org/l/334AC0000000141/art-138/par-1 - 国民年金法 第百四十七条第一項第一号 — https://japanlaw.org/en/national-pension-act/art-147/par-1/item-1 · https://japanlaw.org/l/334AC0000000141/art-147/par-1/item-1 - 国民年金法 第百四十七条第一項第二号 — https://japanlaw.org/en/national-pension-act/art-147/par-1/item-2 · https://japanlaw.org/l/334AC0000000141/art-147/par-1/item-2 - 国民年金法 第百四十七条第一項第三号 — https://japanlaw.org/en/national-pension-act/art-147/par-1/item-3 · https://japanlaw.org/l/334AC0000000141/art-147/par-1/item-3 - 国民年金法 附則第七条の三第一項 — https://japanlaw.org/en/national-pension-act/suppl-3341-141/art-7-3/par-1 · https://japanlaw.org/l/334AC0000000141/suppl-3341-141/art-7-3/par-1 - 国民年金法 附則第七条の四第一項 — https://japanlaw.org/en/national-pension-act/suppl-3341-141/art-7-4/par-1 · https://japanlaw.org/l/334AC0000000141/suppl-3341-141/art-7-4/par-1 - 国民年金法 附則第十六条第一項（附則第五条第一項の届出に係る国民年金法の届出の特例） — https://japanlaw.org/en/national-pension-act/suppl-4211-77/art-16/par-1 · https://japanlaw.org/l/334AC0000000141/suppl-4211-77/art-16/par-1 --- ## Sources - e-Gov 法令検索, Digital Agency (デジタル庁) — 国民年金法 — the text in force from 2026-10-01 (https://laws.e-gov.go.jp/law/334AC0000000141/20261001_507AC0000000074), retrieved 2026-10-05 - Japanese Law Translation Database System, Ministry of Justice (法務省) — 国民年金法 — its English title as the Ministry of Justice's translation database lists it (https://www.japaneselawtranslation.go.jp/en/laws/view/1772), retrieved 2026-09-18 - claude-sonnet-5 — Machine translation, batch national-pension-act-20260923T214903-002, translated 2026-09-24 - claude-sonnet-5 — Machine translation, batch national-pension-act-20260923T214903-003, translated 2026-09-24 - This site's parser, version 211 — 国民年金法 — structure, counts, cross-references and defined terms, computed 2026-10-05