# 国民年金法 / National Pension Act — 第百二十七条 (Article 127)

- 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: 第百二十七条 (Article 127)（加入員） — address `art-127`
- Text in force since: 2026-10-01
- URL (the page that opens at this provision): https://japanlaw.org/en/national-pension-act/art-127
- Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/334AC0000000141/art-127
- 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.

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### 第百二十七条（加入員） — Members
<sup>caption: machine translation, not official</sup>
<sup>art-127 · https://japanlaw.org/en/national-pension-act/art-127 · https://japanlaw.org/l/334AC0000000141/art-127</sup>

    **第一項**  第一号被保険者は、その者が住所を有する地区に係る地域型基金又はその従事する事業若しくは業務に係る職能型基金に申し出て、その加入員となることができる。ただし、他の基金の加入員であるときは、この限りでない。
    <sup>art-127/par-1 · https://japanlaw.org/en/national-pension-act/art-127/par-1 · https://japanlaw.org/l/334AC0000000141/art-127/par-1</sup>
    A category 1 insured person may, by making a request to the regional fund pertaining to the district where the person has their domicile, or the occupation-based fund pertaining to the business or work in which the person is engaged, become a member of it; provided, however, that this does not apply if the person is a member of another National Pension Fund.
    <sup>machine translation, not official</sup>

    **第二項**  前項の申出をした者は、その申出をした日に加入員の資格を取得するものとする。
    <sup>art-127/par-2 · https://japanlaw.org/en/national-pension-act/art-127/par-2 · https://japanlaw.org/l/334AC0000000141/art-127/par-2</sup>
    A person who has made the request under the preceding paragraph is to acquire the status as a member on the day of making that request.
    <sup>machine translation, not official</sup>

    **第三項**  加入員は、次の各号のいずれかに該当するに至つた日の翌日（第一号又は第四号に該当するに至つたときは、その日とし、第三号に該当するに至つたときは、当該保険料を納付することを要しないものとされた月の初日とする。）に、加入員の資格を喪失する。
    <sup>art-127/par-3 · https://japanlaw.org/en/national-pension-act/art-127/par-3 · https://japanlaw.org/l/334AC0000000141/art-127/par-3</sup>
    A member loses the status as a member on the day following the day on which the member comes to fall under any of the following items (or, if the member comes to fall under item (i) or item (iv), on that day, and if the member comes to fall under item (iii), on the first day of the month for which the member is not required to pay the premium concerned).
    <sup>machine translation, not official</sup>

      **一**  被保険者の資格を喪失したとき、又は第二号被保険者若しくは第三号被保険者となつたとき。
      <sup>art-127/par-3/item-1 · https://japanlaw.org/en/national-pension-act/art-127/par-3/item-1 · https://japanlaw.org/l/334AC0000000141/art-127/par-3/item-1</sup>
      When the member has lost the status as an insured person, or has become a category 2 insured person or a category 3 insured person
      <sup>machine translation, not official</sup>

      **二**  地域型基金の加入員にあつては、当該基金の地区内に住所を有する者でなくなつたとき、職能型基金の加入員にあつては、当該事業又は業務に従事する者でなくなつたとき。
      <sup>art-127/par-3/item-2 · https://japanlaw.org/en/national-pension-act/art-127/par-3/item-2 · https://japanlaw.org/l/334AC0000000141/art-127/par-3/item-2</sup>
      In the case of a member of a regional fund, when the member has ceased to be a person having their domicile within the district of that National Pension Fund; in the case of a member of an occupation-based fund, when the member has ceased to be a person engaged in that business or work
      <sup>machine translation, not official</sup>

      **三**  第八十九条第一項、第九十条第一項又は第九十条の三第一項の規定により保険料を納付することを要しないものとされたとき及び第九十条の二第一項から第三項までの規定によりその一部の額につき保険料を納付することを要しないものとされたとき。
      <sup>art-127/par-3/item-3 · https://japanlaw.org/en/national-pension-act/art-127/par-3/item-3 · https://japanlaw.org/l/334AC0000000141/art-127/par-3/item-3</sup>
      When the member has become not required to pay premiums under Article 89, paragraph (1), Article 90, paragraph (1), or Article 90-3, paragraph (1), and when the member has become not required to pay premiums for part of the amount under Article 90-2, paragraphs (1) through (3)
      <sup>machine translation, not official</sup>

      **四**  農業者年金の被保険者となつたとき。
      <sup>art-127/par-3/item-4 · https://japanlaw.org/en/national-pension-act/art-127/par-3/item-4 · https://japanlaw.org/l/334AC0000000141/art-127/par-3/item-4</sup>
      When the member has become an insured person of the farmers' pension
      <sup>machine translation, not official</sup>

      **五**  当該基金が解散したとき。
      <sup>art-127/par-3/item-5 · https://japanlaw.org/en/national-pension-act/art-127/par-3/item-5 · https://japanlaw.org/l/334AC0000000141/art-127/par-3/item-5</sup>
      When that National Pension Fund is dissolved.
      <sup>machine translation, not official</sup>

    **第四項**  加入員の資格を取得した月にその資格を喪失した者は、その資格を取得した日にさかのぼつて、加入員でなかつたものとみなす。
    <sup>art-127/par-4 · https://japanlaw.org/en/national-pension-act/art-127/par-4 · https://japanlaw.org/l/334AC0000000141/art-127/par-4</sup>
    A person who loses their status as a member in the month in which the person acquired that status is deemed, retroactively to the day of acquiring it, to not have been a member.
    <sup>machine translation, not official</sup>

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## Cites
- art-127/par-2: 前項 → 国民年金法 第百二十七条第一項 (Article 127, paragraph (1)), art-127/par-1 — https://japanlaw.org/en/national-pension-act/art-127/par-1 · https://japanlaw.org/l/334AC0000000141/art-127/par-1
- art-127/par-3: 第一号 → 国民年金法 第百二十七条第三項第一号 (Article 127, paragraph (3), item (i)), art-127/par-3/item-1 — https://japanlaw.org/en/national-pension-act/art-127/par-3/item-1 · https://japanlaw.org/l/334AC0000000141/art-127/par-3/item-1
- art-127/par-3: 第四号 → 国民年金法 第百二十七条第三項第四号 (Article 127, paragraph (3), item (iv)), art-127/par-3/item-4 — https://japanlaw.org/en/national-pension-act/art-127/par-3/item-4 · https://japanlaw.org/l/334AC0000000141/art-127/par-3/item-4
- art-127/par-3: 第三号 → 国民年金法 第百二十七条第三項第三号 (Article 127, paragraph (3), item (iii)), art-127/par-3/item-3 — https://japanlaw.org/en/national-pension-act/art-127/par-3/item-3 · https://japanlaw.org/l/334AC0000000141/art-127/par-3/item-3
- art-127/par-3/item-3: 第八十九条第一項 → 国民年金法 第八十九条第一項 (Article 89, paragraph (1)), art-89/par-1 — https://japanlaw.org/en/national-pension-act/art-89/par-1 · https://japanlaw.org/l/334AC0000000141/art-89/par-1
- art-127/par-3/item-3: 第九十条第一項 → 国民年金法 第九十条第一項 (Article 90, paragraph (1)), art-90/par-1 — https://japanlaw.org/en/national-pension-act/art-90/par-1 · https://japanlaw.org/l/334AC0000000141/art-90/par-1
- art-127/par-3/item-3: 第九十条の三第一項 → 国民年金法 第九十条の三第一項 (Article 90-3, paragraph (1)), art-90-3/par-1 — https://japanlaw.org/en/national-pension-act/art-90-3/par-1 · https://japanlaw.org/l/334AC0000000141/art-90-3/par-1
- art-127/par-3/item-3: 第九十条の二第一項から第三項まで → 国民年金法 第九十条の二第一項 (Article 90-2, paragraph (1)), art-90-2/par-1 — https://japanlaw.org/en/national-pension-act/art-90-2/par-1 · https://japanlaw.org/l/334AC0000000141/art-90-2/par-1
- art-127/par-3/item-3: 第九十条の二第一項から第三項まで → 国民年金法 第九十条の二第二項 (Article 90-2, paragraph (2)), art-90-2/par-2 — https://japanlaw.org/en/national-pension-act/art-90-2/par-2 · https://japanlaw.org/l/334AC0000000141/art-90-2/par-2
- art-127/par-3/item-3: 第九十条の二第一項から第三項まで → 国民年金法 第九十条の二第三項 (Article 90-2, paragraph (3)), art-90-2/par-3 — https://japanlaw.org/en/national-pension-act/art-90-2/par-3 · https://japanlaw.org/l/334AC0000000141/art-90-2/par-3

## Cited by

6 provisions cite this one. No official source publishes this direction.

- 国民年金法 第百十六条第一項（組織） — https://japanlaw.org/en/national-pension-act/art-116/par-1 · https://japanlaw.org/l/334AC0000000141/art-116/par-1
- 国民年金法 第百二十七条第二項（加入員） — https://japanlaw.org/en/national-pension-act/art-127/par-2 · https://japanlaw.org/l/334AC0000000141/art-127/par-2
- 国民年金法 第百二十七条第三項（加入員） — https://japanlaw.org/en/national-pension-act/art-127/par-3 · https://japanlaw.org/l/334AC0000000141/art-127/par-3
- 国民年金法 第百二十八条第六項（基金の業務） — https://japanlaw.org/en/national-pension-act/art-128/par-6 · https://japanlaw.org/l/334AC0000000141/art-128/par-6
- 国民年金法 附則第五条第十一項（任意加入被保険者） — https://japanlaw.org/en/national-pension-act/suppl-3341-141/art-5/par-11 · https://japanlaw.org/l/334AC0000000141/suppl-3341-141/art-5/par-11
- 国民年金法 附則第五条第十二項（任意加入被保険者） — https://japanlaw.org/en/national-pension-act/suppl-3341-141/art-5/par-12 · https://japanlaw.org/l/334AC0000000141/suppl-3341-141/art-5/par-12

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## 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-20260923T214903-030, translated 2026-09-24
- claude-sonnet-5 — Machine translation, batch national-pension-act-20260923T214903-031, translated 2026-09-24
- claude-sonnet-5 — Machine translation, batch national-pension-act-20260923T222116-004, 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