# 厚生年金保険法 / Employees' Pension Insurance Act — 第二十条 (Supplementary Provisions, Article 20) - 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: 第二十条 (Supplementary Provisions, Article 20)（二以上の種別の被保険者であつた期間を有する者に係る特例による老齢厚生年金の特例） — address `suppl-3291-115/art-20` - Text in force since: 2026-10-01 - URL (the page that opens at this provision): https://japanlaw.org/ja/employees-pension-insurance-act/suppl-3291-115/art-20 - Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/329AC0000000115/suppl-3291-115/art-20 - 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. --- ### 第二十条（二以上の種別の被保険者であつた期間を有する者に係る特例による老齢厚生年金の特例） — Special Provisions on Employees' Old-Age Pension under the Special Provisions for a Person Who Has Spent Time as an Insured in Two or More Categories caption: machine translation, not official suppl-3291-115/art-20 · https://japanlaw.org/ja/employees-pension-insurance-act/suppl-3291-115/art-20 · https://japanlaw.org/l/329AC0000000115/suppl-3291-115/art-20 **第一項** 二以上の種別の被保険者であつた期間を有する者については、附則第八条（附則第八条の二において読み替えて適用する場合を含む。）の規定を適用する場合においては、各号の厚生年金被保険者期間に係る被保険者期間ごとに適用する。ただし、附則第八条第二号の規定については、その者の二以上の被保険者の種別に係る被保険者であつた期間に係る被保険者期間を合算し、一の期間に係る被保険者期間のみを有するものとみなして適用する。 suppl-3291-115/art-20/par-1 · https://japanlaw.org/ja/employees-pension-insurance-act/suppl-3291-115/art-20/par-1 · https://japanlaw.org/l/329AC0000000115/suppl-3291-115/art-20/par-1 In the case of applying the provisions of Article 8 of the Supplementary Provisions (including as applied with terms replaced in Article 8-2 of the Supplementary Provisions) to a person who has spent time as an insured in two or more categories, they are applied to each insured period relating to each category of EPI insured period; provided, however, that the provisions of Article 8, item (ii) of the Supplementary Provisions are applied by adding together the insured periods relating to the periods during which the person was an insured under the two or more insured categories and deeming the person to have only an insured period relating to time in one category. machine translation, not official **第二項** 前項に規定する者であつて、附則第八条の規定による老齢厚生年金の受給権者であるものについては、各号の厚生年金被保険者期間ごとに附則第九条の二から第九条の四まで及び第十一条から第十一条の六までの規定を適用する。この場合において、附則第十一条第一項中「附則第八条の規定による老齢厚生年金」とあるのは「各号の厚生年金被保険者期間のうち一の期間に基づく附則第八条の規定による老齢厚生年金」と、「老齢厚生年金の額を」とあるのは「各号の厚生年金被保険者期間に基づく老齢厚生年金の額を合算して得た額を」と、「当該老齢厚生年金」とあるのは「当該一の期間に基づく老齢厚生年金」と、「控除して得た額」とあるのは「控除して得た額に当該一の期間に基づく老齢厚生年金の額を十二で除して得た額を基本月額で除して得た数を乗じて得た額」と、「老齢厚生年金の額以上」とあるのは「当該一の期間に基づく老齢厚生年金の額以上」と、「老齢厚生年金の全部」とあるのは「当該一の期間に基づく老齢厚生年金の全部」とするほか、当該受給権者に係る保険給付の額の計算及びその支給停止に関するこの法律その他政令で定める規定の適用に関し必要な読替えその他必要な事項は、政令で定める。 suppl-3291-115/art-20/par-2 · https://japanlaw.org/ja/employees-pension-insurance-act/suppl-3291-115/art-20/par-2 · https://japanlaw.org/l/329AC0000000115/suppl-3291-115/art-20/par-2 With regard to a person prescribed in the preceding paragraph who is a beneficiary of an employees' old-age pension under the provisions of Article 8 of the Supplementary Provisions, the provisions of Articles 9-2 through 9-4 and Articles 11 through 11-6 of the Supplementary Provisions apply to each category of EPI insured period. In such a case, in addition to the phrase "employees' old-age pension under the provisions of Article 8 of the Supplementary Provisions" in Article 11, paragraph (1) of the Supplementary Provisions being deemed to be replaced with "employees' old-age pension under the provisions of Article 8 of the Supplementary Provisions based on the time in one category among the categories of EPI insured period", the phrase "dividing the amount of the employees' old-age pension" with "dividing the amount obtained by adding together the amounts of the employees' old-age pension based on each category of EPI insured period", the phrase "that employees' old-age pension" with "that employees' old-age pension based on that time in one category", the phrase "the amount obtained by subtracting the amount of the adjustment for the suspension of payment from the total of the amount equivalent to total monthly remuneration and the base monthly amount" with "the amount obtained by subtracting the amount of the adjustment for the suspension of payment from the total of the amount equivalent to total monthly remuneration and the base monthly amount, multiplied by the number obtained by dividing the amount obtained by dividing the amount of the employees' old-age pension based on that time in one category by 12 by the base monthly amount", the phrase "equal to or more than the amount of the employees' old-age pension" with "equal to or more than the amount of the employees' old-age pension based on that time in one category", and the phrase "the whole of the employees' old-age pension" with "the whole of the employees' old-age pension based on that time in one category", the replacement of terms necessary for the application of this Act and other provisions specified by Cabinet Order concerning the calculation of the amount of insurance benefits for that beneficiary and the suspension of their payment, and other necessary particulars, are specified by Cabinet Order. machine translation, not official --- ## Cites - suppl-3291-115/art-20/par-1: 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-3291-115/art-20/par-1: 附則第八条の二 → 厚生年金保険法 附則第八条の二 (Supplementary Provisions, Article 8-2), suppl-3291-115/art-8-2 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-3291-115/art-8-2 · https://japanlaw.org/l/329AC0000000115/suppl-3291-115/art-8-2 - suppl-3291-115/art-20/par-1: 附則第八条第二号 → 厚生年金保険法 附則第八条第一項第二号 (Supplementary Provisions, Article 8, paragraph (1), item (ii)), suppl-3291-115/art-8/par-1/item-2 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-3291-115/art-8/par-1/item-2 · https://japanlaw.org/l/329AC0000000115/suppl-3291-115/art-8/par-1/item-2 - suppl-3291-115/art-20/par-2: 前項 → 厚生年金保険法 附則第二十条第一項 (Supplementary Provisions, Article 20, paragraph (1)), suppl-3291-115/art-20/par-1 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-3291-115/art-20/par-1 · https://japanlaw.org/l/329AC0000000115/suppl-3291-115/art-20/par-1 - suppl-3291-115/art-20/par-2: 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-3291-115/art-20/par-2: 附則第九条の二から第九条の四まで → 厚生年金保険法 附則第九条の二 (Supplementary Provisions, Article 9-2), suppl-3291-115/art-9-2 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-3291-115/art-9-2 · https://japanlaw.org/l/329AC0000000115/suppl-3291-115/art-9-2 - suppl-3291-115/art-20/par-2: 附則第九条の二から第九条の四まで → 厚生年金保険法 附則第九条の三 (Supplementary Provisions, Article 9-3), suppl-3291-115/art-9-3 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-3291-115/art-9-3 · https://japanlaw.org/l/329AC0000000115/suppl-3291-115/art-9-3 - suppl-3291-115/art-20/par-2: 附則第九条の二から第九条の四まで → 厚生年金保険法 附則第九条の四 (Supplementary Provisions, Article 9-4), suppl-3291-115/art-9-4 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-3291-115/art-9-4 · https://japanlaw.org/l/329AC0000000115/suppl-3291-115/art-9-4 - suppl-3291-115/art-20/par-2: 第十一条から第十一条の六まで → 厚生年金保険法 附則第十一条 (Supplementary Provisions, Article 11), suppl-3291-115/art-11 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-3291-115/art-11 · https://japanlaw.org/l/329AC0000000115/suppl-3291-115/art-11 - suppl-3291-115/art-20/par-2: 第十一条から第十一条の六まで → 厚生年金保険法 附則第十一条の二 (Supplementary Provisions, Article 11-2), suppl-3291-115/art-11-2 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-3291-115/art-11-2 · https://japanlaw.org/l/329AC0000000115/suppl-3291-115/art-11-2 - suppl-3291-115/art-20/par-2: 第十一条から第十一条の六まで → 厚生年金保険法 附則第十一条の三 (Supplementary Provisions, Article 11-3), suppl-3291-115/art-11-3 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-3291-115/art-11-3 · https://japanlaw.org/l/329AC0000000115/suppl-3291-115/art-11-3 - suppl-3291-115/art-20/par-2: 第十一条から第十一条の六まで → 厚生年金保険法 附則第十一条の四 (Supplementary Provisions, Article 11-4), suppl-3291-115/art-11-4 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-3291-115/art-11-4 · https://japanlaw.org/l/329AC0000000115/suppl-3291-115/art-11-4 - suppl-3291-115/art-20/par-2: 第十一条から第十一条の六まで → 厚生年金保険法 附則第十一条の五 (Supplementary Provisions, Article 11-5), suppl-3291-115/art-11-5 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-3291-115/art-11-5 · https://japanlaw.org/l/329AC0000000115/suppl-3291-115/art-11-5 - suppl-3291-115/art-20/par-2: 第十一条から第十一条の六まで → 厚生年金保険法 附則第十一条の六 (Supplementary Provisions, Article 11-6), suppl-3291-115/art-11-6 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-3291-115/art-11-6 · https://japanlaw.org/l/329AC0000000115/suppl-3291-115/art-11-6 - suppl-3291-115/art-20/par-2: 附則第十一条第一項 → 厚生年金保険法 附則第十一条第一項 (Supplementary Provisions, Article 11, paragraph (1)), suppl-3291-115/art-11/par-1 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-3291-115/art-11/par-1 · https://japanlaw.org/l/329AC0000000115/suppl-3291-115/art-11/par-1 ## Cited by 1 provision cites this one. No official source publishes this direction. - 厚生年金保険法 附則第二十条第二項（二以上の種別の被保険者であつた期間を有する者に係る特例による老齢厚生年金の特例） — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-3291-115/art-20/par-2 · https://japanlaw.org/l/329AC0000000115/suppl-3291-115/art-20/par-2 --- ## 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-20261013T074650-014, 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