# 厚生年金保険法 / Employees' Pension Insurance Act — 第八十五条 (Supplementary Provisions, Article 85) - 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: 第八十五条 (Supplementary Provisions, Article 85) — address `suppl-4241-63/art-85` - Text in force since: 2026-10-01 - URL (the page that opens at this provision): https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4241-63/art-85 - Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/329AC0000000115/suppl-4241-63/art-85 - 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. --- ### 第八十五条 suppl-4241-63/art-85 · https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4241-63/art-85 · https://japanlaw.org/l/329AC0000000115/suppl-4241-63/art-85 **第一項** 改正後厚生年金保険法第二条の五第一項第四号に規定する第四号厚生年金被保険者（以下この条において「第四号厚生年金被保険者」という。）の次の表の上欄に掲げる月分の厚生年金保険法による保険料率については、同法第八十一条第四項の規定にかかわらず、それぞれ同表の下欄に定める率とする。 平成二十七年十月から平成二十八年三月までの月分 千分の百四十三・五四 平成二十八年四月から平成二十九年三月までの月分 千分の百四十七・〇八 平成二十九年四月から平成三十年三月までの月分 千分の百五十・六二 平成三十年四月から平成三十一年三月までの月分 千分の百五十四・一六 平成三十一年四月から令和二年三月までの月分 千分の百五十七・七〇 令和二年四月から令和三年三月までの月分 千分の百六十一・二四 令和三年四月から令和四年三月までの月分 千分の百六十四・七八 令和四年四月から令和五年三月までの月分 千分の百六十八・三二 令和五年四月から令和六年三月までの月分 千分の百七十一・八六 令和六年四月から令和七年三月までの月分 千分の百七十五・四〇 令和七年四月から令和八年三月までの月分 千分の百七十八・九四 令和八年四月から令和九年三月までの月分 千分の百八十二・四八 suppl-4241-63/art-85/par-1 · https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4241-63/art-85/par-1 · https://japanlaw.org/l/329AC0000000115/suppl-4241-63/art-85/par-1 For the months set forth in the upper column of the following table, the insurance premium rate under the Employees' Pension Insurance Act for a category IV EPI insured prescribed in Article 2-5, paragraph (1), item (iv) of the Amended Employees' Pension Insurance Act (hereinafter in this Article referred to as a "category IV EPI insured") is, notwithstanding the provisions of Article 81, paragraph (4) of that Act, the respective rate specified in the lower column of that table. For the months from October 2015 through March 2016 143.54/1,000 For the months from April 2016 through March 2017 147.08/1,000 For the months from April 2017 through March 2018 150.62/1,000 For the months from April 2018 through March 2019 154.16/1,000 For the months from April 2019 through March 2020 157.70/1,000 For the months from April 2020 through March 2021 161.24/1,000 For the months from April 2021 through March 2022 164.78/1,000 For the months from April 2022 through March 2023 168.32/1,000 For the months from April 2023 through March 2024 171.86/1,000 For the months from April 2024 through March 2025 175.40/1,000 For the months from April 2025 through March 2026 178.94/1,000 For the months from April 2026 through March 2027 182.48/1,000 machine translation, not official **第二項** 厚生年金保険法第八十一条第四項及び前項の規定にかかわらず、第四号厚生年金被保険者の平成二十七年十月から令和十一年八月までの月分の同法による保険料率については、次の各号に掲げる区分に応じ、当該各号に定める範囲内の率で共済規程で定める率とすることができる。 suppl-4241-63/art-85/par-2 · https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4241-63/art-85/par-2 · https://japanlaw.org/l/329AC0000000115/suppl-4241-63/art-85/par-2 Notwithstanding the provisions of Article 81, paragraph (4) of the Employees' Pension Insurance Act and the preceding paragraph, the insurance premium rate under that Act for a category IV EPI insured for the months from October 2015 through August 2029 may be a rate specified in the mutual aid rules within the range specified in each of the following items according to the categories set forth in those items: machine translation, not official **一** 平成二十七年十月から令和九年三月までの月分　前項の表の下欄に定める率から千分の十一・五一（九月から翌年三月までの月分にあっては、千分の七・九七）を控除して得た率から同欄に定める率までの範囲内の率 suppl-4241-63/art-85/par-2/item-1 · https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4241-63/art-85/par-2/item-1 · https://japanlaw.org/l/329AC0000000115/suppl-4241-63/art-85/par-2/item-1 for the months from October 2015 through March 2027: a rate within the range from the rate obtained by deducting 11.51/1,000 (7.97/1,000 for the months from September to March of the following year) from the rate specified in the lower column of the table in the preceding paragraph, to the rate specified in that column; machine translation, not official **二** 令和九年四月から令和十一年八月までの月分　厚生年金保険法第八十一条第四項に規定する保険料率から千分の八・四九（令和九年九月から令和十年八月までの月分にあっては千分の四・九五、同年九月から令和十一年八月までの月分にあっては千分の一・四一）を控除して得た率から同項に規定する保険料率までの範囲内の率 suppl-4241-63/art-85/par-2/item-2 · https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4241-63/art-85/par-2/item-2 · https://japanlaw.org/l/329AC0000000115/suppl-4241-63/art-85/par-2/item-2 for the months from April 2027 through August 2029: a rate within the range from the rate obtained by deducting 8.49/1,000 (4.95/1,000 for the months from September 2027 through August 2028, and 1.41/1,000 for the months from September 2028 through August 2029) from the insurance premium rate prescribed in Article 81, paragraph (4) of the Employees' Pension Insurance Act, to the insurance premium rate prescribed in that paragraph. machine translation, not official **第三項** 日本私立学校振興・共済事業団は、前項の規定により保険料率を定めたときは、第一項の規定を適用するとした場合における保険料の総額と前項の規定による保険料の総額との差額に相当する金額については、文部科学省令で定めるところにより、実施機関積立金（改正後厚生年金保険法第七十九条の二に規定する実施機関積立金であって、日本私立学校振興・共済事業団に係るものをいう。）以外の積立金の一部をもって充てるものとする。 suppl-4241-63/art-85/par-3 · https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4241-63/art-85/par-3 · https://japanlaw.org/l/329AC0000000115/suppl-4241-63/art-85/par-3 When the Promotion and Mutual Aid Corporation for Private Schools of Japan has determined the insurance premium rate pursuant to the provisions of the preceding paragraph, the amount equivalent to the difference between the total amount of insurance premiums if the provisions of paragraph (1) were applied and the total amount of insurance premiums under the provisions of the preceding paragraph is to be covered by part of the reserves other than the implementing organization reserves (meaning the implementing organization reserves prescribed in Article 79-2 of the Amended Employees' Pension Insurance Act that relate to the Promotion and Mutual Aid Corporation for Private Schools of Japan), as provided by Ministry of Education, Culture, Sports, Science and Technology Order. machine translation, not official **第四項** 第一項又は第二項の場合における第四号厚生年金被保険者（平成二十五年改正法附則第三条第十一号に規定する存続厚生年金基金の加入員である者に限る。）に係る厚生年金保険法による保険料率については、第一項又は第二項の規定による保険料率から平成二十五年改正法附則第五条第一項の規定によりなおその効力を有するものとされた平成二十五年改正法第一条の規定による改正前の厚生年金保険法第八十一条の三第一項に規定する免除保険料率を控除して得た率とする。 suppl-4241-63/art-85/par-4 · https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4241-63/art-85/par-4 · https://japanlaw.org/l/329AC0000000115/suppl-4241-63/art-85/par-4 In the case of paragraph (1) or (2), the insurance premium rate under the Employees' Pension Insurance Act for a category IV EPI insured (limited to a person who is a member of a surviving employees' pension Fund prescribed in Article 3, item (xi) of the Supplementary Provisions of the 2013 Amendment Act) is the rate obtained by deducting the exempted premium rate prescribed in Article 81-3, paragraph (1) of the Employees' Pension Insurance Act before amendment by the provisions of Article 1 of the 2013 Amendment Act, which remains in force pursuant to the provisions of Article 5, paragraph (1) of the Supplementary Provisions of the 2013 Amendment Act, from the insurance premium rate under the provisions of paragraph (1) or (2). machine translation, not official --- ## Cites - suppl-4241-63/art-85/par-1: 改正後厚生年金保険法第二条の五第一項第四号 → 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/ja/employees-pension-insurance-act/art-2-5/par-1/item-4 · https://japanlaw.org/l/329AC0000000115/art-2-5/par-1/item-4 - suppl-4241-63/art-85/par-1: この条 → 厚生年金保険法 附則第八十五条 (Supplementary Provisions, Article 85), suppl-4241-63/art-85 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4241-63/art-85 · https://japanlaw.org/l/329AC0000000115/suppl-4241-63/art-85 - suppl-4241-63/art-85/par-1: 同法第八十一条第四項 → 厚生年金保険法 第八十一条第四項 (Article 81, paragraph (4)), art-81/par-4 — https://japanlaw.org/ja/employees-pension-insurance-act/art-81/par-4 · https://japanlaw.org/l/329AC0000000115/art-81/par-4 - suppl-4241-63/art-85/par-2: 厚生年金保険法第八十一条第四項 → 厚生年金保険法 第八十一条第四項 (Article 81, paragraph (4)), art-81/par-4 — https://japanlaw.org/ja/employees-pension-insurance-act/art-81/par-4 · https://japanlaw.org/l/329AC0000000115/art-81/par-4 - suppl-4241-63/art-85/par-2: 前項 → 厚生年金保険法 附則第八十五条第一項 (Supplementary Provisions, Article 85, paragraph (1)), suppl-4241-63/art-85/par-1 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4241-63/art-85/par-1 · https://japanlaw.org/l/329AC0000000115/suppl-4241-63/art-85/par-1 - suppl-4241-63/art-85/par-2/item-1: 前項 → 厚生年金保険法 附則第八十五条第一項 (Supplementary Provisions, Article 85, paragraph (1)), suppl-4241-63/art-85/par-1 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4241-63/art-85/par-1 · https://japanlaw.org/l/329AC0000000115/suppl-4241-63/art-85/par-1 - suppl-4241-63/art-85/par-2/item-2: 厚生年金保険法第八十一条第四項 → 厚生年金保険法 第八十一条第四項 (Article 81, paragraph (4)), art-81/par-4 — https://japanlaw.org/ja/employees-pension-insurance-act/art-81/par-4 · https://japanlaw.org/l/329AC0000000115/art-81/par-4 - suppl-4241-63/art-85/par-3: 前項 → 厚生年金保険法 附則第八十五条第二項 (Supplementary Provisions, Article 85, paragraph (2)), suppl-4241-63/art-85/par-2 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4241-63/art-85/par-2 · https://japanlaw.org/l/329AC0000000115/suppl-4241-63/art-85/par-2 - suppl-4241-63/art-85/par-3: 第一項 → 厚生年金保険法 附則第八十五条第一項 (Supplementary Provisions, Article 85, paragraph (1)), suppl-4241-63/art-85/par-1 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4241-63/art-85/par-1 · https://japanlaw.org/l/329AC0000000115/suppl-4241-63/art-85/par-1 - suppl-4241-63/art-85/par-3: 改正後厚生年金保険法第七十九条の二 → 厚生年金保険法 第七十九条の二 (Article 79-2), art-79-2 — https://japanlaw.org/ja/employees-pension-insurance-act/art-79-2 · https://japanlaw.org/l/329AC0000000115/art-79-2 - suppl-4241-63/art-85/par-4: 第一項 → 厚生年金保険法 附則第八十五条第一項 (Supplementary Provisions, Article 85, paragraph (1)), suppl-4241-63/art-85/par-1 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4241-63/art-85/par-1 · https://japanlaw.org/l/329AC0000000115/suppl-4241-63/art-85/par-1 - suppl-4241-63/art-85/par-4: 第二項 → 厚生年金保険法 附則第八十五条第二項 (Supplementary Provisions, Article 85, paragraph (2)), suppl-4241-63/art-85/par-2 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4241-63/art-85/par-2 · https://japanlaw.org/l/329AC0000000115/suppl-4241-63/art-85/par-2 - suppl-4241-63/art-85/par-4: 平成二十五年改正法附則第三条第十一号 → 厚生年金保険法 附則第三条第一項第十一号 (Supplementary Provisions, Article 3, paragraph (1), item (xi)), suppl-4251-63/art-3/par-1/item-11 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4251-63/art-3/par-1/item-11 · https://japanlaw.org/l/329AC0000000115/suppl-4251-63/art-3/par-1/item-11 - suppl-4241-63/art-85/par-4: 平成二十五年改正法附則第五条第一項 → 厚生年金保険法 附則第五条第一項 (Supplementary Provisions, Article 5, paragraph (1)), suppl-4251-63/art-5/par-1 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4251-63/art-5/par-1 · https://japanlaw.org/l/329AC0000000115/suppl-4251-63/art-5/par-1 ## Cited by 7 provisions cite this one. No official source publishes this direction. - 厚生年金保険法 附則第二十三条の二第一項 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-3291-115/art-23-2/par-1 · https://japanlaw.org/l/329AC0000000115/suppl-3291-115/art-23-2/par-1 - 厚生年金保険法 附則第二十三条第三項（脱退一時金の額の計算に係る経過措置） — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4241-63/art-23/par-3 · https://japanlaw.org/l/329AC0000000115/suppl-4241-63/art-23/par-3 - 厚生年金保険法 附則第八十五条第一項 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4241-63/art-85/par-1 · https://japanlaw.org/l/329AC0000000115/suppl-4241-63/art-85/par-1 - 厚生年金保険法 附則第八十五条第二項 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4241-63/art-85/par-2 · https://japanlaw.org/l/329AC0000000115/suppl-4241-63/art-85/par-2 - 厚生年金保険法 附則第八十五条第二項第一号 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4241-63/art-85/par-2/item-1 · https://japanlaw.org/l/329AC0000000115/suppl-4241-63/art-85/par-2/item-1 - 厚生年金保険法 附則第八十五条第三項 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4241-63/art-85/par-3 · https://japanlaw.org/l/329AC0000000115/suppl-4241-63/art-85/par-3 - 厚生年金保険法 附則第八十五条第四項 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4241-63/art-85/par-4 · https://japanlaw.org/l/329AC0000000115/suppl-4241-63/art-85/par-4 --- ## 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-20261013T074650-074, translated 2026-10-13 - claude-sonnet-5-5 — Machine translation, batch employees-pension-insurance-act-20261013T074650-075, 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