# 厚生年金保険法 / Employees' Pension Insurance Act — 第五十条 (Article 50)

- 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: 第五十条 (Article 50)（障害厚生年金の額） — address `art-50`
- Text in force since: 2026-10-01
- URL (the page that opens at this provision): https://japanlaw.org/ja/employees-pension-insurance-act/art-50
- Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/329AC0000000115/art-50
- 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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### 第五十条（障害厚生年金の額） — (Amount of an Employees' Disability Pension)
<sup>caption: Ministry of Justice translation — Japanese Law Translation Database System</sup>
<sup>art-50 · https://japanlaw.org/ja/employees-pension-insurance-act/art-50 · https://japanlaw.org/l/329AC0000000115/art-50</sup>

  **第一項**  障害厚生年金の額は、第四十三条第一項の規定の例により計算した額とする。この場合において、当該障害厚生年金の額の計算の基礎となる被保険者期間の月数が三百に満たないときは、これを三百とする。
  <sup>art-50/par-1 · https://japanlaw.org/ja/employees-pension-insurance-act/art-50/par-1 · https://japanlaw.org/l/329AC0000000115/art-50/par-1</sup>
  The amount of an employees' disability pension is an amount calculated pursuant to the provisions of Article 43, paragraph (1). If the number of months in the insured period that constitutes the basis for calculating the amount of the employees' disability pension in such a case is under 300, it is regarded as 300.
  <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

  **第二項**  障害の程度が障害等級の一級に該当する者に支給する障害厚生年金の額は、前項の規定にかかわらず、同項に定める額の百分の百二十五に相当する額とする。
  <sup>art-50/par-2 · https://japanlaw.org/ja/employees-pension-insurance-act/art-50/par-2 · https://japanlaw.org/l/329AC0000000115/art-50/par-2</sup>
  Notwithstanding the provisions of the preceding paragraph, the amount of employees' disability pension to be paid to a person who has a disability of a degree of severity that is classified as Grade 1 of the disability grades is an amount equal to 125/100 of the amount provided for in that paragraph.
  <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

  **第三項**  障害厚生年金の給付事由となつた障害について国民年金法による障害基礎年金を受けることができない場合において、障害厚生年金の額が国民年金法第三十三条第一項に規定する障害基礎年金の額に四分の三を乗じて得た額（その額に五十円未満の端数が生じたときは、これを切り捨て、五十円以上百円未満の端数が生じたときは、これを百円に切り上げるものとする。）に満たないときは、前二項の規定にかかわらず、当該額をこれらの項に定める額とする。
  <sup>art-50/par-3 · https://japanlaw.org/ja/employees-pension-insurance-act/art-50/par-3 · https://japanlaw.org/l/329AC0000000115/art-50/par-3</sup>
  Notwithstanding the provisions of the preceding two paragraphs, if a disability constituting the grounds for benefits under an employees' disability pension is not one for which a basic disability pension under the National Pension Act may be received, and the amount of the employees' disability pension is less than the amount arrived at when the amount of a basic disability pension provided for in Article 33, paragraph (1) of the National Pension Act is multiplied by three-quarters (3/4) (this amount is rounded to the nearest hundred, with amounts less than 50 yen being rounded down, and amounts between 50 yen and 99 yen being rounded up), the relevant amount is the amount provided for in these paragraphs.
  <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

  **第四項**  第四十八条第一項の規定による障害厚生年金の額は、その額が同条第二項の規定により消滅した障害厚生年金の額より低額であるときは、第一項及び第二項の規定にかかわらず、従前の障害厚生年金の額に相当する額とする。
  <sup>art-50/par-4 · https://japanlaw.org/ja/employees-pension-insurance-act/art-50/par-4 · https://japanlaw.org/l/329AC0000000115/art-50/par-4</sup>
  Notwithstanding the provisions of paragraphs (1) and (2), if the amount of an employees' disability pension under the provisions of Article 48, paragraph (1) is lower than the amount of the employees' disability pension that has ceased to exist pursuant to the provisions of paragraph (2) of that Article, the amount of the employees' disability pension is an amount equal to the amount of the prior employees' disability pension.
  <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

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## Cites
- art-50/par-1: 第四十三条第一項 → 厚生年金保険法 第四十三条第一項 (Article 43, paragraph (1)), art-43/par-1 — https://japanlaw.org/ja/employees-pension-insurance-act/art-43/par-1 · https://japanlaw.org/l/329AC0000000115/art-43/par-1
- art-50/par-2: 前項 → 厚生年金保険法 第五十条第一項 (Article 50, paragraph (1)), art-50/par-1 — https://japanlaw.org/ja/employees-pension-insurance-act/art-50/par-1 · https://japanlaw.org/l/329AC0000000115/art-50/par-1
- art-50/par-3: 国民年金法第三十三条第一項 → 国民年金法 第三十三条第一項 (Article 33, paragraph (1)), art-33/par-1 — https://japanlaw.org/ja/national-pension-act/art-33/par-1 · https://japanlaw.org/l/334AC0000000141/art-33/par-1
- art-50/par-3: 前二項 → 厚生年金保険法 第五十条第一項 (Article 50, paragraph (1)), art-50/par-1 — https://japanlaw.org/ja/employees-pension-insurance-act/art-50/par-1 · https://japanlaw.org/l/329AC0000000115/art-50/par-1
- art-50/par-3: 前二項 → 厚生年金保険法 第五十条第二項 (Article 50, paragraph (2)), art-50/par-2 — https://japanlaw.org/ja/employees-pension-insurance-act/art-50/par-2 · https://japanlaw.org/l/329AC0000000115/art-50/par-2
- art-50/par-4: 第四十八条第一項 → 厚生年金保険法 第四十八条第一項 (Article 48, paragraph (1)), art-48/par-1 — https://japanlaw.org/ja/employees-pension-insurance-act/art-48/par-1 · https://japanlaw.org/l/329AC0000000115/art-48/par-1
- art-50/par-4: 同条第二項 → 厚生年金保険法 第四十八条第二項 (Article 48, paragraph (2)), art-48/par-2 — https://japanlaw.org/ja/employees-pension-insurance-act/art-48/par-2 · https://japanlaw.org/l/329AC0000000115/art-48/par-2
- art-50/par-4: 第一項 → 厚生年金保険法 第五十条第一項 (Article 50, paragraph (1)), art-50/par-1 — https://japanlaw.org/ja/employees-pension-insurance-act/art-50/par-1 · https://japanlaw.org/l/329AC0000000115/art-50/par-1
- art-50/par-4: 第二項 → 厚生年金保険法 第五十条第二項 (Article 50, paragraph (2)), art-50/par-2 — https://japanlaw.org/ja/employees-pension-insurance-act/art-50/par-2 · https://japanlaw.org/l/329AC0000000115/art-50/par-2

## Cited by

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

- 厚生年金保険法 第五十条第二項（障害厚生年金の額） — https://japanlaw.org/ja/employees-pension-insurance-act/art-50/par-2 · https://japanlaw.org/l/329AC0000000115/art-50/par-2
- 厚生年金保険法 第五十条第三項（障害厚生年金の額） — https://japanlaw.org/ja/employees-pension-insurance-act/art-50/par-3 · https://japanlaw.org/l/329AC0000000115/art-50/par-3
- 厚生年金保険法 第五十条第四項（障害厚生年金の額） — https://japanlaw.org/ja/employees-pension-insurance-act/art-50/par-4 · https://japanlaw.org/l/329AC0000000115/art-50/par-4
- 厚生年金保険法 第五十条の二第一項 — https://japanlaw.org/ja/employees-pension-insurance-act/art-50-2/par-1 · https://japanlaw.org/l/329AC0000000115/art-50-2/par-1
- 厚生年金保険法 第五十一条第一項 — https://japanlaw.org/ja/employees-pension-insurance-act/art-51/par-1 · https://japanlaw.org/l/329AC0000000115/art-51/par-1
- 厚生年金保険法 第五十七条第一項（障害手当金の額） — https://japanlaw.org/ja/employees-pension-insurance-act/art-57/par-1 · https://japanlaw.org/l/329AC0000000115/art-57/par-1
- 厚生年金保険法 第七十八条の十第二項（老齢厚生年金等の額の改定） — https://japanlaw.org/ja/employees-pension-insurance-act/art-78-10/par-2 · https://japanlaw.org/l/329AC0000000115/art-78-10/par-2
- 厚生年金保険法 附則第五十二条第一項（厚生年金保険の平均標準報酬月額の計算に関する経過措置） — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-3601-34/art-52/par-1 · https://japanlaw.org/l/329AC0000000115/suppl-3601-34/art-52/par-1
- 厚生年金保険法 附則第五十四条第一項第二号（新厚生年金保険法による保険給付の額の改定の特例） — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-3601-34/art-54/par-1/item-2 · https://japanlaw.org/l/329AC0000000115/suppl-3601-34/art-54/par-1/item-2
- 厚生年金保険法 附則第一条第二項第一号（施行期日等） — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4011-86/art-1/par-2/item-1 · https://japanlaw.org/l/329AC0000000115/suppl-4011-86/art-1/par-2/item-1
- 厚生年金保険法 附則第一条第二項第一号（施行期日等） — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4061-95/art-1/par-2/item-1 · https://japanlaw.org/l/329AC0000000115/suppl-4061-95/art-1/par-2/item-1
- 厚生年金保険法 附則第六条第一項（厚生年金保険法による年金たる保険給付等の額に関する経過措置） — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4121-18/art-6/par-1 · https://japanlaw.org/l/329AC0000000115/suppl-4121-18/art-6/par-1
- 厚生年金保険法 附則第二十条第一項（老齢厚生年金等の額の計算に関する経過措置） — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4121-18/art-20/par-1 · https://japanlaw.org/l/329AC0000000115/suppl-4121-18/art-20/par-1
- 厚生年金保険法 附則第二十一条第二項 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4121-18/art-21/par-2 · https://japanlaw.org/l/329AC0000000115/suppl-4121-18/art-21/par-2
- 国民年金法 附則第一条第二項第一号（施行期日等） — https://japanlaw.org/ja/national-pension-act/suppl-4011-86/art-1/par-2/item-1 · https://japanlaw.org/l/334AC0000000141/suppl-4011-86/art-1/par-2/item-1
- 国民年金法 附則第一条第二項第一号（施行期日等） — https://japanlaw.org/ja/national-pension-act/suppl-4061-95/art-1/par-2/item-1 · https://japanlaw.org/l/334AC0000000141/suppl-4061-95/art-1/par-2/item-1

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## 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
- This site's parser, version 190 — 厚生年金保険法 — structure, counts, cross-references and defined terms, computed 2026-10-13
