# 厚生年金保険法施行令 / Order for Enforcement of the Employees' Pension Insurance Act — 第四条 (Article 4)

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- Law: 厚生年金保険法施行令 (Order for Enforcement of the Employees' Pension Insurance Act), 昭和二十九年政令第百十号
- English title "Order for Enforcement of the Employees' Pension Insurance Act": claude-opus-5-5
- Kind: CabinetOrder — 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: 第四条 (Article 4)（二以上の事業所又は船舶に使用される場合の保険料） — address `art-4`
- Text in force since: 2026-10-01
- URL (the page that opens at this provision): https://japanlaw.org/ja/employees-pension-insurance-act-enforcement-order/art-4
- e-Gov law ID: 329CO0000000110 — never renamed. A permanent link, `/l/{lawId}/{address}` on this site, redirects to the page.
- Every provision below carries its address and its URL 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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### 第四条（二以上の事業所又は船舶に使用される場合の保険料） — Premiums Where an Insured Person Is Employed by Two or More Places of Business or Ships
<sup>caption: machine translation, not official</sup>
<sup>art-4 · https://japanlaw.org/ja/employees-pension-insurance-act-enforcement-order/art-4</sup>

**第一項**  法第八十二条第三項の規定により被保険者が同時に二以上の事業所に使用される場合における各事業主の負担すべき標準報酬月額に係る保険料の額は、各事業所について法第二十一条第一項、第二十二条第一項、第二十三条第一項若しくは第二十三条の二第一項、第二十三条の三第一項又は第二十四条第一項の規定により算定した額を当該被保険者の報酬月額で除して得た数を当該被保険者の保険料の半額に乗じて得た額とする。
<sup>art-4/par-1 · https://japanlaw.org/ja/employees-pension-insurance-act-enforcement-order/art-4/par-1</sup>
Where, pursuant to Article 82, paragraph (3) of the Act, an insured person is employed by two or more places of business at the same time, the amount of the premium relating to the standard monthly remuneration to be borne by each employer is the amount obtained by multiplying half of that insured person's premium by the number obtained by dividing the amount calculated for each place of business pursuant to Article 21, paragraph (1), Article 22, paragraph (1), Article 23, paragraph (1), Article 23-2, paragraph (1), Article 23-3, paragraph (1) or Article 24, paragraph (1) of the Act by that insured person's monthly amount of remuneration.
<sup>machine translation, not official</sup>

**第二項**  法第八十二条第三項の規定により被保険者が同時に二以上の事業所に使用される場合における各事業主の負担すべき標準賞与額に係る保険料の額は、各事業所についてその月に各事業主が支払つた賞与額をその月に当該被保険者が受けた賞与額で除して得た数を当該被保険者の保険料の半額に乗じて得た額とする。
<sup>art-4/par-2 · https://japanlaw.org/ja/employees-pension-insurance-act-enforcement-order/art-4/par-2</sup>
Where, pursuant to Article 82, paragraph (3) of the Act, an insured person is employed by two or more places of business at the same time, the amount of the premium relating to the standard bonus amount to be borne by each employer is the amount obtained by multiplying half of that insured person's premium by the number obtained by dividing the amount of bonus paid by each employer in that month for each place of business by the amount of bonus received by that insured person in that month.
<sup>machine translation, not official</sup>

**第三項**  法第八十二条第三項の規定により被保険者が同時に二以上の事業所に使用される場合における各事業主が納付すべき保険料は、前二項の規定により各事業主が負担すべき保険料及びこれに応ずる当該被保険者が負担すべき保険料とする。
<sup>art-4/par-3 · https://japanlaw.org/ja/employees-pension-insurance-act-enforcement-order/art-4/par-3</sup>
Where, pursuant to Article 82, paragraph (3) of the Act, an insured person is employed by two or more places of business at the same time, the premium to be paid by each employer is the premium to be borne by each employer pursuant to the preceding two paragraphs and the corresponding premium to be borne by that insured person.
<sup>machine translation, not official</sup>

**第四項**  被保険者が法第六条第一項第三号に規定する船舶に使用され、かつ、同時に事業所に使用される場合においては、船舶所有者（同号に規定する船舶所有者をいう。以下この項及び第四条の四第一項において同じ。）以外の事業主は保険料を負担せず、保険料を納付する義務を負わないものとし、船舶所有者が当該被保険者に係る保険料の半額を負担し、当該保険料及び当該被保険者の負担する保険料を納付する義務を負うものとする。
<sup>art-4/par-4 · https://japanlaw.org/ja/employees-pension-insurance-act-enforcement-order/art-4/par-4</sup>
Where an insured person is employed on a ship prescribed in Article 6, paragraph (1), item (iii) of the Act and is also employed at a place of business at the same time, an employer other than the shipowner (meaning the shipowner prescribed in that item; the same applies hereinafter in this paragraph and Article 4-4, paragraph (1)) does not bear the premium and does not have the obligation to pay the premium, and the shipowner bears half of the premium relating to that insured person and has the obligation to pay that premium and the premium borne by that insured person.
<sup>machine translation, not official</sup>

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## Cites
- art-4/par-1: 法第八十二条第三項 → 厚生年金保険法 第八十二条第三項 (Article 82, paragraph (3)), art-82/par-3 — https://japanlaw.org/ja/employees-pension-insurance-act/art-82/par-3 (e-Gov law ID 329AC0000000115)
- art-4/par-1: 法第二十一条第一項 → 厚生年金保険法 第二十一条第一項 (Article 21, paragraph (1)), art-21/par-1 — https://japanlaw.org/ja/employees-pension-insurance-act/art-21/par-1 (e-Gov law ID 329AC0000000115)
- art-4/par-1: 第二十二条第一項 → 厚生年金保険法 第二十二条第一項 (Article 22, paragraph (1)), art-22/par-1 — https://japanlaw.org/ja/employees-pension-insurance-act/art-22/par-1 (e-Gov law ID 329AC0000000115)
- art-4/par-1: 第二十三条第一項 → 厚生年金保険法 第二十三条第一項 (Article 23, paragraph (1)), art-23/par-1 — https://japanlaw.org/ja/employees-pension-insurance-act/art-23/par-1 (e-Gov law ID 329AC0000000115)
- art-4/par-1: 第二十三条の二第一項 → 厚生年金保険法 第二十三条の二第一項 (Article 23-2, paragraph (1)), art-23-2/par-1 — https://japanlaw.org/ja/employees-pension-insurance-act/art-23-2/par-1 (e-Gov law ID 329AC0000000115)
- art-4/par-1: 第二十三条の三第一項 → 厚生年金保険法 第二十三条の三第一項 (Article 23-3, paragraph (1)), art-23-3/par-1 — https://japanlaw.org/ja/employees-pension-insurance-act/art-23-3/par-1 (e-Gov law ID 329AC0000000115)
- art-4/par-1: 第二十四条第一項 → 厚生年金保険法 第二十四条第一項 (Article 24, paragraph (1)), art-24/par-1 — https://japanlaw.org/ja/employees-pension-insurance-act/art-24/par-1 (e-Gov law ID 329AC0000000115)
- art-4/par-2: 法第八十二条第三項 → 厚生年金保険法 第八十二条第三項 (Article 82, paragraph (3)), art-82/par-3 — https://japanlaw.org/ja/employees-pension-insurance-act/art-82/par-3 (e-Gov law ID 329AC0000000115)
- art-4/par-3: 法第八十二条第三項 → 厚生年金保険法 第八十二条第三項 (Article 82, paragraph (3)), art-82/par-3 — https://japanlaw.org/ja/employees-pension-insurance-act/art-82/par-3 (e-Gov law ID 329AC0000000115)
- art-4/par-3: 前二項 → 厚生年金保険法施行令 第四条第一項 (Article 4, paragraph (1)), art-4/par-1 — https://japanlaw.org/ja/employees-pension-insurance-act-enforcement-order/art-4/par-1
- art-4/par-3: 前二項 → 厚生年金保険法施行令 第四条第二項 (Article 4, paragraph (2)), art-4/par-2 — https://japanlaw.org/ja/employees-pension-insurance-act-enforcement-order/art-4/par-2
- art-4/par-4: 法第六条第一項第三号 → 厚生年金保険法 第六条第一項第三号 (Article 6, paragraph (1), item (iii)), art-6/par-1/item-3 — https://japanlaw.org/ja/employees-pension-insurance-act/art-6/par-1/item-3 (e-Gov law ID 329AC0000000115)
- art-4/par-4: この項 → 厚生年金保険法施行令 第四条第四項 (Article 4, paragraph (4)), art-4/par-4 — https://japanlaw.org/ja/employees-pension-insurance-act-enforcement-order/art-4/par-4
- art-4/par-4: 第四条の四第一項 → 厚生年金保険法施行令 第四条の四第一項 (Article 4-4, paragraph (1)), art-4-4/par-1 — https://japanlaw.org/ja/employees-pension-insurance-act-enforcement-order/art-4-4/par-1

## Cited by

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

- 厚生年金保険法施行令 第四条第三項（二以上の事業所又は船舶に使用される場合の保険料） — https://japanlaw.org/ja/employees-pension-insurance-act-enforcement-order/art-4/par-3
- 厚生年金保険法施行令 第四条第四項（二以上の事業所又は船舶に使用される場合の保険料） — https://japanlaw.org/ja/employees-pension-insurance-act-enforcement-order/art-4/par-4

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## Sources

- claude-opus-5-5 — English title of a law in this collection, written for this site, written 2026-11-06
- e-Gov 法令検索, Digital Agency (デジタル庁) — 厚生年金保険法施行令 — the text in force from 2026-10-01 (https://laws.e-gov.go.jp/law/329CO0000000110/20261001_508CO0000000276), retrieved 2026-11-06
- claude-sonnet-5-5 — Machine translation, batch employees-pension-insurance-act-enforcement-order-20261106T164949-012, translated 2026-11-07
- This site's parser, version 229 — 厚生年金保険法施行令 — structure, counts, cross-references and defined terms, computed 2026-11-06
