# 厚生年金保険法 / Employees' Pension Insurance Act — 第七十八条の十 (Article 78-10)

- 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: 第七十八条の十 (Article 78-10)（老齢厚生年金等の額の改定） — address `art-78-10`
- Text in force since: 2026-10-01
- URL (the page that opens at this provision): https://japanlaw.org/en/employees-pension-insurance-act/art-78-10
- Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/329AC0000000115/art-78-10
- 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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### 第七十八条の十（老齢厚生年金等の額の改定） — (Revising the Amounts of Employees' Old-Age Pensions and Employees' Disability Pensions)
<sup>caption: Ministry of Justice translation — Japanese Law Translation Database System</sup>
<sup>art-78-10 · https://japanlaw.org/en/employees-pension-insurance-act/art-78-10 · https://japanlaw.org/l/329AC0000000115/art-78-10</sup>

**第一項**  老齢厚生年金の受給権者について、第七十八条の六第一項及び第二項の規定により標準報酬の改定又は決定が行われたときは、第四十三条第一項の規定にかかわらず、対象期間に係る被保険者期間の最後の月以前における被保険者期間（対象期間の末日後に当該老齢厚生年金を支給すべき事由が生じた場合その他の政令で定める場合にあつては、政令で定める期間）及び改定又は決定後の標準報酬を老齢厚生年金の額の計算の基礎とするものとし、当該標準報酬改定請求のあつた日の属する月の翌月から、年金の額を改定する。
<sup>art-78-10/par-1 · https://japanlaw.org/en/employees-pension-insurance-act/art-78-10/par-1 · https://japanlaw.org/l/329AC0000000115/art-78-10/par-1</sup>
Notwithstanding the provisions of Article 43, paragraph (1), if the standardized remuneration of the beneficiary of an employees' old-age pension has been revised or decided pursuant to the provisions of Article 78-6, paragraph (1) and paragraph (2), the insured period on or before the last month of the insured period falling under the subject period (or the period prescribed by Cabinet Order, if the grounds for payment of the relevant employees' old-age pension occur after the last day of the subject period or in other cases specified by Cabinet Order) and the standardized remuneration after its revision or after it has been decided are the basis for calculating the employees' old-age pension, and the pension amount is revised from the month following the month that includes the day on which the relevant request for standardized remuneration to be revised or decided was made.
<sup>machine translation, not official</sup>

**第二項**  障害厚生年金の受給権者について、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に係る標準報酬が第七十八条の六第一項及び第二項の規定により改定され、又は決定されたときは、改定又は決定後の標準報酬を基礎として、当該標準報酬改定請求のあつた日の属する月の翌月から、年金の額を改定する。ただし、第五十条第一項後段の規定が適用されている障害厚生年金については、離婚時みなし被保険者期間は、その計算の基礎としない。
<sup>art-78-10/par-2 · https://japanlaw.org/en/employees-pension-insurance-act/art-78-10/par-2 · https://japanlaw.org/l/329AC0000000115/art-78-10/par-2</sup>
If the standardized remuneration of the beneficiary of an employees' disability pension has been revised or decided pursuant to the provisions of Article 78-6, paragraph (1) and paragraph (2) for an insured period that constitutes a basis for calculating the amount of the relevant employees' disability pension, the amount of the pension is revised from the month following the month that includes the day on which the request for standardized remuneration to be revised or decided was filed, based on the standardized remuneration after its revision or after it has been decided; provided, however, that the deemed insured period at divorce does not constitute a basis for calculating the employees' disability pension to which the provisions of the second sentence of Article 50, paragraph (1) apply.
<sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

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## Cites
- art-78-10/par-1: 第七十八条の六第一項 → 厚生年金保険法 第七十八条の六第一項 (Article 78-6, paragraph (1)), art-78-6/par-1 — https://japanlaw.org/en/employees-pension-insurance-act/art-78-6/par-1 · https://japanlaw.org/l/329AC0000000115/art-78-6/par-1
- art-78-10/par-1: 第二項 → 厚生年金保険法 第七十八条の六第二項 (Article 78-6, paragraph (2)), art-78-6/par-2 — https://japanlaw.org/en/employees-pension-insurance-act/art-78-6/par-2 · https://japanlaw.org/l/329AC0000000115/art-78-6/par-2
- art-78-10/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/en/employees-pension-insurance-act/art-43/par-1 · https://japanlaw.org/l/329AC0000000115/art-43/par-1
- art-78-10/par-2: 第七十八条の六第一項 → 厚生年金保険法 第七十八条の六第一項 (Article 78-6, paragraph (1)), art-78-6/par-1 — https://japanlaw.org/en/employees-pension-insurance-act/art-78-6/par-1 · https://japanlaw.org/l/329AC0000000115/art-78-6/par-1
- art-78-10/par-2: 第二項 → 厚生年金保険法 第七十八条の六第二項 (Article 78-6, paragraph (2)), art-78-6/par-2 — https://japanlaw.org/en/employees-pension-insurance-act/art-78-6/par-2 · https://japanlaw.org/l/329AC0000000115/art-78-6/par-2
- art-78-10/par-2: 第五十条第一項 → 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/en/employees-pension-insurance-act/art-50/par-1 · https://japanlaw.org/l/329AC0000000115/art-50/par-1

## Cited by

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

- 厚生年金保険法 第七十八条の十八第二項（老齢厚生年金等の額の改定の特例） — https://japanlaw.org/en/employees-pension-insurance-act/art-78-18/par-2 · https://japanlaw.org/l/329AC0000000115/art-78-18/par-2
- 厚生年金保険法 第百条の十第一項第二十六号（機構への事務の委託） — https://japanlaw.org/en/employees-pension-insurance-act/art-100-10/par-1/item-26 · https://japanlaw.org/l/329AC0000000115/art-100-10/par-1/item-26
- 厚生年金保険法 第百条の十第一項第二十八号（機構への事務の委託） — https://japanlaw.org/en/employees-pension-insurance-act/art-100-10/par-1/item-28 · https://japanlaw.org/l/329AC0000000115/art-100-10/par-1/item-28
- 厚生年金保険法 附則第七十八条第九項（旧厚生年金保険法による給付） — https://japanlaw.org/en/employees-pension-insurance-act/suppl-3601-34/art-78/par-9 · https://japanlaw.org/l/329AC0000000115/suppl-3601-34/art-78/par-9
- 厚生年金保険法 附則第八十七条第十項 — https://japanlaw.org/en/employees-pension-insurance-act/suppl-3601-34/art-87/par-10 · https://japanlaw.org/l/329AC0000000115/suppl-3601-34/art-87/par-10

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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
- claude-sonnet-5-5 — Machine translation, batch employees-pension-insurance-act-20261013T074650-001, 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
