# 厚生年金保険法 / Employees' Pension Insurance Act — 第八条 (Supplementary Provisions, Article 8) - Law: 厚生年金保険法 (Employees' Pension Insurance Act), 昭和二十九年法律第百十五号 - English title "Employees' Pension Insurance Act": Ministry of Justice translation - 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: 第八条 (Supplementary Provisions, Article 8)（老齢厚生年金の額の計算の特例） — address `suppl-4081-82/art-8` - Text in force since: 2026-10-01 - URL (the page that opens at this provision): https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4081-82/art-8 - Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/329AC0000000115/suppl-4081-82/art-8 - 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. --- ### 第八条（老齢厚生年金の額の計算の特例） — Special Provisions on Calculation of the Amount of an Employees' Old-Age Pension caption: machine translation, not official suppl-4081-82/art-8 · https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4081-82/art-8 · https://japanlaw.org/l/329AC0000000115/suppl-4081-82/art-8 **第一項** 施行日の前日において次に掲げる年金たる給付の受給権を有していた者に支給する厚生年金保険法による老齢厚生年金の額については、当該年金たる給付の額の計算の基礎となった旧適用法人共済組合員期間（第一号に掲げる年金たる給付の受給権を有する者にあっては、当該旧適用法人共済組合員期間に引き続く厚生年金保険の被保険者期間であって政令で定める要件に該当するものを含む。）は、計算の基礎としない。 suppl-4081-82/art-8/par-1 · https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4081-82/art-8/par-1 · https://japanlaw.org/l/329AC0000000115/suppl-4081-82/art-8/par-1 With regard to the amount of an employees' old-age pension under the Employees' Pension Insurance Act that is paid to a person who held, on the day preceding the Effective Date, the right to receive benefits from any of the pension benefits set forth in the following items, the period as a member of a former applicable corporation mutual aid Association that served as the basis for calculating the amount of that pension benefit (for a person who holds the right to receive benefits from the pension benefit set forth in item (i), including an insured period under employees' pension insurance that continues from that period as a member of a former applicable corporation mutual aid Association and satisfies the requirements specified by Cabinet Order) is not used as a basis for calculation. machine translation, not official **一** 旧適用法人共済組合が支給する改正前国共済法の規定による退職共済年金（他の法令の規定により当該退職共済年金とみなされたものを含む。） suppl-4081-82/art-8/par-1/item-1 · https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4081-82/art-8/par-1/item-1 · https://japanlaw.org/l/329AC0000000115/suppl-4081-82/art-8/par-1/item-1 A retirement mutual aid pension under the provisions of the National Public Officers, etc. Mutual Aid Association Act Before the Amendment that is paid by a former applicable corporation mutual aid Association (including one deemed to be that retirement mutual aid pension pursuant to the provisions of other laws and regulations); machine translation, not official **二** 旧適用法人共済組合が支給する旧国共済法の規定による退職年金又は減額退職年金（他の法令の規定によりこれらの年金とみなされたものを含む。） suppl-4081-82/art-8/par-1/item-2 · https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4081-82/art-8/par-1/item-2 · https://japanlaw.org/l/329AC0000000115/suppl-4081-82/art-8/par-1/item-2 A retirement pension or reduced retirement pension under the provisions of the Former National Public Officers, etc. Mutual Aid Association Act that is paid by a former applicable corporation mutual aid Association (including those deemed to be those pensions pursuant to the provisions of other laws and regulations). machine translation, not official **第二項** 施行日の前日において次の各号のいずれかに該当した者（同日において前項各号のいずれかに該当した者を除く。）に支給する厚生年金保険法による老齢厚生年金の額については、旧適用法人共済組合員期間は計算の基礎としない。ただし、第一号又は第二号に該当した者にあっては、施行日から六十日以内に旧適用法人共済組合員期間を厚生年金保険法による老齢厚生年金の額の計算の基礎とすることを希望する旨を社会保険庁長官に申し出たときは、この限りでない。 suppl-4081-82/art-8/par-2 · https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4081-82/art-8/par-2 · https://japanlaw.org/l/329AC0000000115/suppl-4081-82/art-8/par-2 With regard to the amount of an employees' old-age pension under the Employees' Pension Insurance Act that is paid to a person who fell under any of the following items on the day preceding the Effective Date (excluding a person who fell under any of the items of the preceding paragraph on that day), the period as a member of a former applicable corporation mutual aid Association is not used as a basis for calculation; provided, however, that this does not apply to a person who fell under item (i) or (ii) if, within 60 days from the Effective Date, the person has notified the Director-General of the Social Insurance Agency of the person's wish to have the period as a member of a former applicable corporation mutual aid Association used as a basis for calculating the amount of the employees' old-age pension under the Employees' Pension Insurance Act. machine translation, not official **一** 改正前国共済法附則第十二条の八第二項に規定する者（平成七年六月三十日以前に退職した日本電信電話共済組合の組合員又は平成二年四月一日前に退職した日本たばこ産業共済組合若しくは日本鉄道共済組合の組合員に限る。） suppl-4081-82/art-8/par-2/item-1 · https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4081-82/art-8/par-2/item-1 · https://japanlaw.org/l/329AC0000000115/suppl-4081-82/art-8/par-2/item-1 A person prescribed in Article 12-8, paragraph (2) of the Supplementary Provisions of the National Public Officers, etc. Mutual Aid Association Act Before the Amendment (limited to a member of the Nippon Telegraph and Telephone Mutual Aid Association who retired on or before June 30, 1995, or a member of the Japan Tobacco Industry Mutual Aid Association or the Japan Railway Mutual Aid Association who retired before April 1, 1990); machine translation, not official **二** 改正前国共済法附則第十二条の八第九項に規定する者（日本電信電話共済組合の組合員（施行日の前日以前に退職した者を含む。）又は平成二年四月一日前に退職した日本たばこ産業共済組合若しくは日本鉄道共済組合の組合員に限る。）（前号に掲げる者を除く。） suppl-4081-82/art-8/par-2/item-2 · https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4081-82/art-8/par-2/item-2 · https://japanlaw.org/l/329AC0000000115/suppl-4081-82/art-8/par-2/item-2 A person prescribed in Article 12-8, paragraph (9) of the Supplementary Provisions of the National Public Officers, etc. Mutual Aid Association Act Before the Amendment (limited to a member of the Nippon Telegraph and Telephone Mutual Aid Association (including a person who retired on or before the day preceding the Effective Date), or a member of the Japan Tobacco Industry Mutual Aid Association or the Japan Railway Mutual Aid Association who retired before April 1, 1990) (excluding a person set forth in the preceding item); or machine translation, not official **三** 厚生年金保険法附則第八条の規定による老齢厚生年金の受給権を有する者（前二号に掲げる者を除く。） suppl-4081-82/art-8/par-2/item-3 · https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4081-82/art-8/par-2/item-3 · https://japanlaw.org/l/329AC0000000115/suppl-4081-82/art-8/par-2/item-3 A person who holds the right to receive benefits from an employees' old-age pension under the provisions of Article 8 of the Supplementary Provisions of the Employees' Pension Insurance Act (excluding a person set forth in the preceding two items). machine translation, not official --- ## Cites - suppl-4081-82/art-8/par-1: 第一号 → 厚生年金保険法 附則第八条第一項第一号 (Supplementary Provisions, Article 8, paragraph (1), item (i)), suppl-4081-82/art-8/par-1/item-1 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4081-82/art-8/par-1/item-1 · https://japanlaw.org/l/329AC0000000115/suppl-4081-82/art-8/par-1/item-1 - suppl-4081-82/art-8/par-2: 前項 → 厚生年金保険法 附則第八条第一項 (Supplementary Provisions, Article 8, paragraph (1)), suppl-4081-82/art-8/par-1 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4081-82/art-8/par-1 · https://japanlaw.org/l/329AC0000000115/suppl-4081-82/art-8/par-1 - suppl-4081-82/art-8/par-2: 第一号 → 厚生年金保険法 附則第八条第二項第一号 (Supplementary Provisions, Article 8, paragraph (2), item (i)), suppl-4081-82/art-8/par-2/item-1 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4081-82/art-8/par-2/item-1 · https://japanlaw.org/l/329AC0000000115/suppl-4081-82/art-8/par-2/item-1 - suppl-4081-82/art-8/par-2: 第二号 → 厚生年金保険法 附則第八条第二項第二号 (Supplementary Provisions, Article 8, paragraph (2), item (ii)), suppl-4081-82/art-8/par-2/item-2 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4081-82/art-8/par-2/item-2 · https://japanlaw.org/l/329AC0000000115/suppl-4081-82/art-8/par-2/item-2 - suppl-4081-82/art-8/par-2/item-2: 前号 → 厚生年金保険法 附則第八条第二項第一号 (Supplementary Provisions, Article 8, paragraph (2), item (i)), suppl-4081-82/art-8/par-2/item-1 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4081-82/art-8/par-2/item-1 · https://japanlaw.org/l/329AC0000000115/suppl-4081-82/art-8/par-2/item-1 - suppl-4081-82/art-8/par-2/item-3: 厚生年金保険法附則第八条 → 厚生年金保険法 附則第八条 (Supplementary Provisions, Article 8), suppl-3291-115/art-8 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-3291-115/art-8 · https://japanlaw.org/l/329AC0000000115/suppl-3291-115/art-8 - suppl-4081-82/art-8/par-2/item-3: 前二号 → 厚生年金保険法 附則第八条第二項第一号 (Supplementary Provisions, Article 8, paragraph (2), item (i)), suppl-4081-82/art-8/par-2/item-1 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4081-82/art-8/par-2/item-1 · https://japanlaw.org/l/329AC0000000115/suppl-4081-82/art-8/par-2/item-1 - suppl-4081-82/art-8/par-2/item-3: 前二号 → 厚生年金保険法 附則第八条第二項第二号 (Supplementary Provisions, Article 8, paragraph (2), item (ii)), suppl-4081-82/art-8/par-2/item-2 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4081-82/art-8/par-2/item-2 · https://japanlaw.org/l/329AC0000000115/suppl-4081-82/art-8/par-2/item-2 ## Cited by 4 provisions cite this one. No official source publishes this direction. - 厚生年金保険法 附則第八条第一項（老齢厚生年金の額の計算の特例） — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4081-82/art-8/par-1 · https://japanlaw.org/l/329AC0000000115/suppl-4081-82/art-8/par-1 - 厚生年金保険法 附則第八条第二項（老齢厚生年金の額の計算の特例） — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4081-82/art-8/par-2 · https://japanlaw.org/l/329AC0000000115/suppl-4081-82/art-8/par-2 - 厚生年金保険法 附則第八条第二項第二号（老齢厚生年金の額の計算の特例） — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4081-82/art-8/par-2/item-2 · https://japanlaw.org/l/329AC0000000115/suppl-4081-82/art-8/par-2/item-2 - 厚生年金保険法 附則第八条第二項第三号（老齢厚生年金の額の計算の特例） — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4081-82/art-8/par-2/item-3 · https://japanlaw.org/l/329AC0000000115/suppl-4081-82/art-8/par-2/item-3 --- ## Sources - e-Gov 法令検索, Digital Agency (デジタル庁) — 厚生年金保険法 — the text in force from 2026-10-01 (https://laws.e-gov.go.jp/law/329AC0000000115/20261001_507AC0000000074), retrieved 2026-10-13 - Japanese Law Translation Database System, Ministry of Justice (法務省) — Employees' Pension Insurance Act — Ministry of Justice translation (https://www.japaneselawtranslation.go.jp/en/laws/view/3554/tb), retrieved 2026-10-13 - claude-sonnet-5-5 — Machine translation, batch employees-pension-insurance-act-20261013T074650-050, translated 2026-10-13 - This site's parser, version 190 — 厚生年金保険法 — structure, counts, cross-references and defined terms, computed 2026-10-13