# 厚生年金保険法 / Employees' Pension Insurance Act — 第四十三条の二 (Article 43-2)

- 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: 第四十三条の二 (Article 43-2)（再評価率の改定等） — address `art-43-2`
- Text in force since: 2026-10-01
- URL (the page that opens at this provision): https://japanlaw.org/en/employees-pension-insurance-act/art-43-2
- Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/329AC0000000115/art-43-2
- 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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### 第四十三条の二（再評価率の改定等） — (Revision of the Revaluation Rate; Related Matters)
<sup>caption: Ministry of Justice translation — Japanese Law Translation Database System</sup>
<sup>art-43-2 · https://japanlaw.org/en/employees-pension-insurance-act/art-43-2 · https://japanlaw.org/l/329AC0000000115/art-43-2</sup>

  **第一項**  再評価率については、毎年度、第一号に掲げる率（以下「物価変動率」という。）に第二号及び第三号に掲げる率を乗じて得た率（以下「名目手取り賃金変動率」という。）を基準として改定し、当該年度の四月以降の保険給付について適用する。
  <sup>art-43-2/par-1 · https://japanlaw.org/en/employees-pension-insurance-act/art-43-2/par-1 · https://japanlaw.org/l/329AC0000000115/art-43-2/par-1</sup>
  The revaluation rate is revised every year based on the rate arrived at when the rate specified in item (i) (hereinafter referred to as the "price fluctuation rate") is multiplied by the rates prescribed in item (ii) and (iii) (hereinafter the rate so arrived at is referred to as the "rate of fluctuation in nominal net wages"), and applied to insurance benefits in and after April of the relevant fiscal year:
  <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

    **一**  当該年度の初日の属する年の前々年の物価指数（総務省において作成する年平均の全国消費者物価指数をいう。以下同じ。）に対する当該年度の初日の属する年の前年の物価指数の比率
    <sup>art-43-2/par-1/item-1 · https://japanlaw.org/en/employees-pension-insurance-act/art-43-2/par-1/item-1 · https://japanlaw.org/l/329AC0000000115/art-43-2/par-1/item-1</sup>
    the rate of the price index (meaning the average annual national consumer price index compiled by the Ministry of Internal Affairs and Communications; the same applies hereinafter) for the year prior to the year that includes the first day of the relevant fiscal year, in comparison to the price index for the year two years prior to the year that includes the first day of the relevant fiscal year;
    <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

    **二**  イに掲げる率をロに掲げる率で除して得た率の三乗根となる率
    <sup>art-43-2/par-1/item-2 · https://japanlaw.org/en/employees-pension-insurance-act/art-43-2/par-1/item-2 · https://japanlaw.org/l/329AC0000000115/art-43-2/par-1/item-2</sup>
    the rate that constitutes the cube root of the quotient arrived at when the rate set forth in (a) is divided by the rate set forth in (b):
    <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

      **イ**  当該年度の初日の属する年の五年前の年の四月一日の属する年度における被保険者に係る標準報酬平均額（各年度における標準報酬の総額を各年度における被保険者の数で除して得た額を十二で除して得た額に相当する額として、被保険者の性別構成及び年齢別構成並びに標準報酬の分布状況の変動を参酌して政令で定めるところにより算定した額をいう。以下この号において同じ。）に対する当該年度の前々年度における被保険者に係る標準報酬平均額の比率
      <sup>art-43-2/par-1/item-2/sub-1 · https://japanlaw.org/en/employees-pension-insurance-act/art-43-2/par-1/item-2/sub-1 · https://japanlaw.org/l/329AC0000000115/art-43-2/par-1/item-2/sub-1</sup>
      the rate of the average standardized amount of remuneration for insureds (meaning an amount calculated as specified by Cabinet Order in consideration of fluctuations in the statistical distribution of gender, age, and standardized monthly amounts of remuneration among insureds as an amount that is equivalent to the amount arrived at when the total standardized monthly amount of remuneration in each fiscal year is divided by the number of insureds in each fiscal year and the resulting quotient is divided by 12; the same applies hereinafter in this item) in the fiscal year two years prior to the relevant fiscal year, in comparison to the average standardized amount of remuneration for insureds in the fiscal year that included the April 1 of the year five years prior to the year that includes the first day of the relevant fiscal year;
      <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

      **ロ**  当該年度の初日の属する年の五年前の年における物価指数に対する当該年度の初日の属する年の前々年における物価指数の比率
      <sup>art-43-2/par-1/item-2/sub-2 · https://japanlaw.org/en/employees-pension-insurance-act/art-43-2/par-1/item-2/sub-2 · https://japanlaw.org/l/329AC0000000115/art-43-2/par-1/item-2/sub-2</sup>
      the rate of the price index in the year two years prior to the year that includes the first day of the relevant fiscal year, in comparison to the price index in the year five years prior to the year that includes the first day of the relevant fiscal year.
      <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

    **三**  イに掲げる率をロに掲げる率で除して得た率
    <sup>art-43-2/par-1/item-3 · https://japanlaw.org/en/employees-pension-insurance-act/art-43-2/par-1/item-3 · https://japanlaw.org/l/329AC0000000115/art-43-2/par-1/item-3</sup>
    the rate arrived at when the rate set forth in (a) is divided by the rate set forth in (b):
    <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

      **イ**  〇・九一〇から当該年度の初日の属する年の三年前の年の九月一日におけるこの法律の規定による保険料率（以下「保険料率」という。）の二分の一に相当する率を控除して得た率
      <sup>art-43-2/par-1/item-3/sub-1 · https://japanlaw.org/en/employees-pension-insurance-act/art-43-2/par-1/item-3/sub-1 · https://japanlaw.org/l/329AC0000000115/art-43-2/par-1/item-3/sub-1</sup>
      the rate arrived at when a percentage equivalent to one-half of the rate of insurance premiums under the provisions of this Act (hereinafter referred to as the "insurance premium rate") as of September 1 of the year three years prior to the year that includes the first day of the relevant fiscal year is deducted from 0.910;
      <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

      **ロ**  〇・九一〇から当該年度の初日の属する年の四年前の年の九月一日における保険料率の二分の一に相当する率を控除して得た率
      <sup>art-43-2/par-1/item-3/sub-2 · https://japanlaw.org/en/employees-pension-insurance-act/art-43-2/par-1/item-3/sub-2 · https://japanlaw.org/l/329AC0000000115/art-43-2/par-1/item-3/sub-2</sup>
      the rate arrived at when a percentage equivalent to one-half of the insurance premium rate as of September 1 of the year four years prior to the year that includes the first day of the relevant fiscal year is deducted from 0.910.
      <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

  **第二項**  次の各号に掲げる再評価率の改定については、前項の規定にかかわらず、当該各号に定める率を基準とする。
  <sup>art-43-2/par-2 · https://japanlaw.org/en/employees-pension-insurance-act/art-43-2/par-2 · https://japanlaw.org/l/329AC0000000115/art-43-2/par-2</sup>
  Notwithstanding the provisions of the preceding paragraph, the rates provided for in the following items are the basis for revision of the revaluation rate set forth in those items:
  <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

    **一**  当該年度の前年度に属する月の標準報酬（以下「前年度の標準報酬」という。）に係る再評価率　前項第三号に掲げる率（以下「可処分所得割合変化率」という。）
    <sup>art-43-2/par-2/item-1 · https://japanlaw.org/en/employees-pension-insurance-act/art-43-2/par-2/item-1 · https://japanlaw.org/l/329AC0000000115/art-43-2/par-2/item-1</sup>
    the revaluation rate for the standardized monthly remuneration for months that fall in the fiscal year preceding the relevant fiscal year (hereinafter referred to as the "standardized remuneration in the previous fiscal year"):the rate set forth in item (iii) of the preceding paragraph (hereinafter referred to as the "rate of fluctuation in the proportion of disposable income");
    <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

    **二**  当該年度の前々年度又は当該年度の初日の属する年の三年前の年の四月一日の属する年度に属する月の標準報酬（以下「前々年度等の標準報酬」という。）に係る再評価率　物価変動率に可処分所得割合変化率を乗じて得た率
    <sup>art-43-2/par-2/item-2 · https://japanlaw.org/en/employees-pension-insurance-act/art-43-2/par-2/item-2 · https://japanlaw.org/l/329AC0000000115/art-43-2/par-2/item-2</sup>
    the revaluation rate for the standardized monthly remuneration for months that fall in the fiscal year two years prior to the relevant fiscal year or for months that fall in the fiscal year that includes the April 1 of the year three years prior to the year that includes the first day of the relevant fiscal year (hereinafter referred to as the "standardized remuneration two or three fiscal years prior"):the rate arrived at when the rate of fluctuation in the proportion of disposable income is multiplied by the price fluctuation rate.
    <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

  **第三項**  当該年度に属する月の標準報酬に係る再評価率については、当該年度の前年度におけるその年度に属する月の標準報酬に係る再評価率に可処分所得割合変化率を乗じて得た率を基準として設定する。
  <sup>art-43-2/par-3 · https://japanlaw.org/en/employees-pension-insurance-act/art-43-2/par-3 · https://japanlaw.org/l/329AC0000000115/art-43-2/par-3</sup>
  The revaluation rate for the standardized monthly amount of remuneration for months that fall in the relevant fiscal year is established based on the rate arrived at when the rate of fluctuation in the proportion of disposable income is multiplied by the revaluation rate for the standardized monthly amount of remuneration for months that fall in the fiscal year before the relevant fiscal year.
  <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

  **第四項**  前三項の規定による再評価率の改定又は設定の措置は、政令で定める。
  <sup>art-43-2/par-4 · https://japanlaw.org/en/employees-pension-insurance-act/art-43-2/par-4 · https://japanlaw.org/l/329AC0000000115/art-43-2/par-4</sup>
  Cabinet Order provides for measures to revise and establish the revaluation rate under the provisions of the preceding three paragraphs.
  <sup>machine translation, not official</sup>

---

## Cites
- art-43-2/par-1: 第一号 → 厚生年金保険法 第四十三条の二第一項第一号 (Article 43-2, paragraph (1), item (i)), art-43-2/par-1/item-1 — https://japanlaw.org/en/employees-pension-insurance-act/art-43-2/par-1/item-1 · https://japanlaw.org/l/329AC0000000115/art-43-2/par-1/item-1
- art-43-2/par-1: 第二号 → 厚生年金保険法 第四十三条の二第一項第二号 (Article 43-2, paragraph (1), item (ii)), art-43-2/par-1/item-2 — https://japanlaw.org/en/employees-pension-insurance-act/art-43-2/par-1/item-2 · https://japanlaw.org/l/329AC0000000115/art-43-2/par-1/item-2
- art-43-2/par-1: 第三号 → 厚生年金保険法 第四十三条の二第一項第三号 (Article 43-2, paragraph (1), item (iii)), art-43-2/par-1/item-3 — https://japanlaw.org/en/employees-pension-insurance-act/art-43-2/par-1/item-3 · https://japanlaw.org/l/329AC0000000115/art-43-2/par-1/item-3
- art-43-2/par-1/item-2/sub-1: この号 → 厚生年金保険法 第四十三条の二第一項第二号 (Article 43-2, paragraph (1), item (ii)), art-43-2/par-1/item-2 — https://japanlaw.org/en/employees-pension-insurance-act/art-43-2/par-1/item-2 · https://japanlaw.org/l/329AC0000000115/art-43-2/par-1/item-2
- art-43-2/par-2: 前項 → 厚生年金保険法 第四十三条の二第一項 (Article 43-2, paragraph (1)), art-43-2/par-1 — https://japanlaw.org/en/employees-pension-insurance-act/art-43-2/par-1 · https://japanlaw.org/l/329AC0000000115/art-43-2/par-1
- art-43-2/par-2/item-1: 前項第三号 → 厚生年金保険法 第四十三条の二第一項第三号 (Article 43-2, paragraph (1), item (iii)), art-43-2/par-1/item-3 — https://japanlaw.org/en/employees-pension-insurance-act/art-43-2/par-1/item-3 · https://japanlaw.org/l/329AC0000000115/art-43-2/par-1/item-3
- art-43-2/par-4: 前三項 → 厚生年金保険法 第四十三条の二第一項 (Article 43-2, paragraph (1)), art-43-2/par-1 — https://japanlaw.org/en/employees-pension-insurance-act/art-43-2/par-1 · https://japanlaw.org/l/329AC0000000115/art-43-2/par-1
- art-43-2/par-4: 前三項 → 厚生年金保険法 第四十三条の二第二項 (Article 43-2, paragraph (2)), art-43-2/par-2 — https://japanlaw.org/en/employees-pension-insurance-act/art-43-2/par-2 · https://japanlaw.org/l/329AC0000000115/art-43-2/par-2
- art-43-2/par-4: 前三項 → 厚生年金保険法 第四十三条の二第三項 (Article 43-2, paragraph (3)), art-43-2/par-3 — https://japanlaw.org/en/employees-pension-insurance-act/art-43-2/par-3 · https://japanlaw.org/l/329AC0000000115/art-43-2/par-3

## Cited by

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

- 厚生年金保険法 第四十三条の二第一項（再評価率の改定等） — https://japanlaw.org/en/employees-pension-insurance-act/art-43-2/par-1 · https://japanlaw.org/l/329AC0000000115/art-43-2/par-1
- 厚生年金保険法 第四十三条の二第一項第二号イ（再評価率の改定等） — https://japanlaw.org/en/employees-pension-insurance-act/art-43-2/par-1/item-2/sub-1 · https://japanlaw.org/l/329AC0000000115/art-43-2/par-1/item-2/sub-1
- 厚生年金保険法 第四十三条の二第二項（再評価率の改定等） — https://japanlaw.org/en/employees-pension-insurance-act/art-43-2/par-2 · https://japanlaw.org/l/329AC0000000115/art-43-2/par-2
- 厚生年金保険法 第四十三条の二第二項第一号（再評価率の改定等） — https://japanlaw.org/en/employees-pension-insurance-act/art-43-2/par-2/item-1 · https://japanlaw.org/l/329AC0000000115/art-43-2/par-2/item-1
- 厚生年金保険法 第四十三条の二第四項（再評価率の改定等） — https://japanlaw.org/en/employees-pension-insurance-act/art-43-2/par-4 · https://japanlaw.org/l/329AC0000000115/art-43-2/par-4
- 厚生年金保険法 第四十三条の三第一項 — https://japanlaw.org/en/employees-pension-insurance-act/art-43-3/par-1 · https://japanlaw.org/l/329AC0000000115/art-43-3/par-1
- 厚生年金保険法 第四十三条の三第二項 — https://japanlaw.org/en/employees-pension-insurance-act/art-43-3/par-2 · https://japanlaw.org/l/329AC0000000115/art-43-3/par-2
- 厚生年金保険法 第四十三条の四第一項（調整期間における再評価率の改定等の特例） — https://japanlaw.org/en/employees-pension-insurance-act/art-43-4/par-1 · https://japanlaw.org/l/329AC0000000115/art-43-4/par-1
- 厚生年金保険法 第四十三条の四第三項（調整期間における再評価率の改定等の特例） — https://japanlaw.org/en/employees-pension-insurance-act/art-43-4/par-3 · https://japanlaw.org/l/329AC0000000115/art-43-4/par-3
- 厚生年金保険法 第四十三条の四第四項（調整期間における再評価率の改定等の特例） — https://japanlaw.org/en/employees-pension-insurance-act/art-43-4/par-4 · https://japanlaw.org/l/329AC0000000115/art-43-4/par-4
- 厚生年金保険法 第四十三条の五第四項 — https://japanlaw.org/en/employees-pension-insurance-act/art-43-5/par-4 · https://japanlaw.org/l/329AC0000000115/art-43-5/par-4
- 厚生年金保険法 第四十六条第三項（支給停止） — https://japanlaw.org/en/employees-pension-insurance-act/art-46/par-3 · https://japanlaw.org/l/329AC0000000115/art-46/par-3
- 厚生年金保険法 第百条の三第一項（報告） — https://japanlaw.org/en/employees-pension-insurance-act/art-100-3/par-1 · https://japanlaw.org/l/329AC0000000115/art-100-3/par-1
- 厚生年金保険法 附則第十七条の四第十項（平均標準報酬月額の改定） — https://japanlaw.org/en/employees-pension-insurance-act/suppl-3291-115/art-17-4/par-10 · https://japanlaw.org/l/329AC0000000115/suppl-3291-115/art-17-4/par-10
- 厚生年金保険法 附則第十七条の七第一項（年金たる保険給付の額の改定の特例） — https://japanlaw.org/en/employees-pension-insurance-act/suppl-3291-115/art-17-7/par-1 · https://japanlaw.org/l/329AC0000000115/suppl-3291-115/art-17-7/par-1
- 厚生年金保険法 附則第十七条の七第二項（年金たる保険給付の額の改定の特例） — https://japanlaw.org/en/employees-pension-insurance-act/suppl-3291-115/art-17-7/par-2 · https://japanlaw.org/l/329AC0000000115/suppl-3291-115/art-17-7/par-2
- 厚生年金保険法 附則別表第一 — https://japanlaw.org/en/employees-pension-insurance-act/suppl-4121-18/appdx-1 · https://japanlaw.org/l/329AC0000000115/suppl-4121-18/appdx-1
- 厚生年金保険法 附則第二条第一項第一号（給付水準の下限） — https://japanlaw.org/en/employees-pension-insurance-act/suppl-4161-104/art-2/par-1/item-1 · https://japanlaw.org/l/329AC0000000115/suppl-4161-104/art-2/par-1/item-1
- 厚生年金保険法 附則第三十条第一項（平成十七年度から平成二十年度までにおける再評価率の改定等に関する経過措置） — https://japanlaw.org/en/employees-pension-insurance-act/suppl-4161-104/art-30/par-1 · https://japanlaw.org/l/329AC0000000115/suppl-4161-104/art-30/par-1
- 厚生年金保険法 附則第三十条第二項（平成十七年度から平成二十年度までにおける再評価率の改定等に関する経過措置） — https://japanlaw.org/en/employees-pension-insurance-act/suppl-4161-104/art-30/par-2 · https://japanlaw.org/l/329AC0000000115/suppl-4161-104/art-30/par-2
- 厚生年金保険法 附則第三十条第三項（平成十七年度から平成二十年度までにおける再評価率の改定等に関する経過措置） — https://japanlaw.org/en/employees-pension-insurance-act/suppl-4161-104/art-30/par-3 · https://japanlaw.org/l/329AC0000000115/suppl-4161-104/art-30/par-3
- 厚生年金保険法 附則第十七条の二第二項 — https://japanlaw.org/en/employees-pension-insurance-act/suppl-4241-62/art-17-2/par-2 · https://japanlaw.org/l/329AC0000000115/suppl-4241-62/art-17-2/par-2
- 厚生年金保険法 附則第十七条の二第三項 — https://japanlaw.org/en/employees-pension-insurance-act/suppl-4241-62/art-17-2/par-3 · https://japanlaw.org/l/329AC0000000115/suppl-4241-62/art-17-2/par-3
- 厚生年金保険法 附則第八十二条第一項（再評価率の適用の特例） — https://japanlaw.org/en/employees-pension-insurance-act/suppl-4241-63/art-82/par-1 · https://japanlaw.org/l/329AC0000000115/suppl-4241-63/art-82/par-1
- 国民年金法 第二十七条の二第二項第二号イ（改定率の改定等） — https://japanlaw.org/en/national-pension-act/art-27-2/par-2/item-2/sub-1 · https://japanlaw.org/l/334AC0000000141/art-27-2/par-2/item-2/sub-1
- 国民年金法 附則第二条第一項第一号（給付水準の下限） — https://japanlaw.org/en/national-pension-act/suppl-4161-104/art-2/par-1/item-1 · https://japanlaw.org/l/334AC0000000141/suppl-4161-104/art-2/par-1/item-1

---

## 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-20261013T073658-001, 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
