# 厚生年金保険法 / Employees' Pension Insurance Act — 第八条 (Supplementary Provisions, Article 8)

- 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: 第八条 (Supplementary Provisions, Article 8)（厚生年金保険の標準報酬に関する経過措置） — address `suppl-4241-63/art-8`
- Text in force since: 2026-10-01
- URL (the page that opens at this provision): https://japanlaw.org/en/employees-pension-insurance-act/suppl-4241-63/art-8
- Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/329AC0000000115/suppl-4241-63/art-8
- 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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### 第八条（厚生年金保険の標準報酬に関する経過措置） — Transitional Measures Concerning Standardized Remuneration under Employees' Pension Insurance
<sup>caption: machine translation, not official</sup>
<sup>suppl-4241-63/art-8 · https://japanlaw.org/en/employees-pension-insurance-act/suppl-4241-63/art-8 · https://japanlaw.org/l/329AC0000000115/suppl-4241-63/art-8</sup>

**第一項**  旧国家公務員共済組合員期間（昭和六十年国共済改正法附則第三十二条第一項の規定により旧国家公務員共済組合員期間に合算された期間を除く。）の各月の改正前国共済法による標準報酬の月額（昭和六十一年四月一日前の期間にあっては、昭和六十年国共済改正法附則第九条の規定の例により計算した額とする。）、旧地方公務員共済組合員期間（昭和六十年地共済改正法附則第三十五条第一項の規定により旧地方公務員共済組合員期間に合算された期間を除く。）の各月の改正前地共済法による掛金の標準となった給料の額（同日前の期間にあっては、昭和六十年地共済改正法附則第八条の規定の例により計算した額とする。）に政令で定める数値を乗じて得た額又は旧私立学校教職員共済加入者期間の各月の改正前私学共済法による標準給与の月額（同日前の期間にあっては、昭和六十年私学共済改正法附則第四条の規定の例により計算した額とする。）は、それぞれ第二号厚生年金被保険者期間、第三号厚生年金被保険者期間又は第四号厚生年金被保険者期間の各月の厚生年金保険法による標準報酬月額とみなす。
<sup>suppl-4241-63/art-8/par-1 · https://japanlaw.org/en/employees-pension-insurance-act/suppl-4241-63/art-8/par-1 · https://japanlaw.org/l/329AC0000000115/suppl-4241-63/art-8/par-1</sup>
The monthly amount of standardized remuneration for each month of the former National Public Servants Mutual Aid Association member period (excluding a period added to the former National Public Servants Mutual Aid Association member period pursuant to the provisions of Article 32, paragraph (1) of the Supplementary Provisions of the 1985 National Public Officers Mutual Aid Amendment Act) under the pre-amendment National Public Officers Mutual Aid Association Act (for a period before April 1, 1986, the amount calculated following the example of the provisions of Article 9 of the Supplementary Provisions of the 1985 National Public Officers Mutual Aid Amendment Act), the amount obtained by multiplying the amount of salary that served as the standard for contributions under the pre-amendment Local Public Officers, etc. Mutual Aid Association Act for each month of the former Local Public Servants Mutual Aid Association member period (excluding a period added to the former Local Public Servants Mutual Aid Association member period pursuant to the provisions of Article 35, paragraph (1) of the Supplementary Provisions of the 1985 Local Public Officers Mutual Aid Amendment Act) (for a period before that day, the amount calculated following the example of the provisions of Article 8 of the Supplementary Provisions of the 1985 Local Public Officers Mutual Aid Amendment Act) by the figure specified by Cabinet Order, or the monthly standard salary amount under the pre-amendment Private School Personnel Mutual Aid Association Act for each month of the former Private School Personnel Mutual Aid participant period (for a period before that day, the amount calculated following the example of the provisions of Article 4 of the Supplementary Provisions of the 1985 Private School Mutual Aid Amendment Act) is deemed to be the standardized monthly amount of remuneration under the Employees' Pension Insurance Act for each month of the category II EPI insured period, category III EPI insured period or category IV EPI insured period respectively.
<sup>machine translation, not official</sup>

**第二項**  旧国家公務員共済組合員期間の期末手当等（改正前国共済法第二条第一項第六号に規定する期末手当等をいう。）を受けた月における改正前国共済法による標準期末手当等の額、旧地方公務員共済組合員期間の期末手当等（改正前地共済法第二条第一項第六号に規定する期末手当等をいう。）を受けた月における改正前地共済法による掛金の標準となった期末手当等の額又は旧私立学校教職員共済加入者期間の賞与（改正前私学共済法第二十一条第二項に規定する賞与をいう。）を受けた月における改正前私学共済法による標準賞与の額は、それぞれ第二号厚生年金被保険者期間、第三号厚生年金被保険者期間又は第四号厚生年金被保険者期間の賞与（厚生年金保険法第三条第一項第四号に規定する賞与をいう。）を受けた月における厚生年金保険法による標準賞与額とみなす。
<sup>suppl-4241-63/art-8/par-2 · https://japanlaw.org/en/employees-pension-insurance-act/suppl-4241-63/art-8/par-2 · https://japanlaw.org/l/329AC0000000115/suppl-4241-63/art-8/par-2</sup>
The standardized amount of year-end allowances, etc. under the pre-amendment National Public Officers Mutual Aid Association Act for the month in which year-end allowances, etc. (meaning the year-end allowances, etc. prescribed in Article 2, paragraph (1), item (vi) of the pre-amendment National Public Officers Mutual Aid Association Act) were received during the former National Public Servants Mutual Aid Association member period, the amount of year-end allowances, etc. that served as the standard for contributions under the pre-amendment Local Public Officers, etc. Mutual Aid Association Act for the month in which year-end allowances, etc. (meaning the year-end allowances, etc. prescribed in Article 2, paragraph (1), item (vi) of the pre-amendment Local Public Officers, etc. Mutual Aid Association Act) were received during the former Local Public Servants Mutual Aid Association member period, or the standard bonus amount under the pre-amendment Private School Personnel Mutual Aid Association Act for the month in which a bonus (meaning the bonus prescribed in Article 21, paragraph (2) of the pre-amendment Private School Personnel Mutual Aid Association Act) was received during the former Private School Personnel Mutual Aid participant period is deemed to be the standardized amount of bonuses under the Employees' Pension Insurance Act for the month in which a bonus (meaning the bonus prescribed in Article 3, paragraph (1), item (iv) of the Employees' Pension Insurance Act) was received during the category II EPI insured period, category III EPI insured period or category IV EPI insured period respectively.
<sup>machine translation, not official</sup>

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## Cites
- suppl-4241-63/art-8/par-2: 厚生年金保険法第三条第一項第四号 → 厚生年金保険法 第三条第一項第四号 (Article 3, paragraph (1), item (iv)), art-3/par-1/item-4 — https://japanlaw.org/en/employees-pension-insurance-act/art-3/par-1/item-4 · https://japanlaw.org/l/329AC0000000115/art-3/par-1/item-4

## Cited by

1 provision cites this one. No official source publishes this direction.

- 厚生年金保険法 附則第四条第一項第十号（用語の定義） — https://japanlaw.org/en/employees-pension-insurance-act/suppl-4241-63/art-4/par-1/item-10 · https://japanlaw.org/l/329AC0000000115/suppl-4241-63/art-4/par-1/item-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-20261013T074650-072, translated 2026-10-13
- claude-sonnet-5-5 — Machine translation, batch employees-pension-insurance-act-20261013T083844-004, 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
