# 健康保険法 / Health Insurance Act — 第百六十五条 (Article 165)

- Law: 健康保険法 (Health Insurance Act), 大正十一年法律第七十号
- English title "Health 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: 第百六十五条 (Article 165)（任意継続被保険者の保険料の前納） — address `art-165`
- Text in force since: 2026-10-01
- URL (the page that opens at this provision): https://japanlaw.org/ja/health-insurance-act/art-165
- Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/211AC0000000070/art-165
- 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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### 第百六十五条（任意継続被保険者の保険料の前納） — (Prepaid Insurance Premiums for Insured Persons with Optional and Continued Coverage)
<sup>caption: Ministry of Justice translation — Japanese Law Translation Database System</sup>
<sup>art-165 · https://japanlaw.org/ja/health-insurance-act/art-165 · https://japanlaw.org/l/211AC0000000070/art-165</sup>

**第一項**  任意継続被保険者は、将来の一定期間の保険料を前納することができる。
<sup>art-165/par-1 · https://japanlaw.org/ja/health-insurance-act/art-165/par-1 · https://japanlaw.org/l/211AC0000000070/art-165/par-1</sup>
An insured person with optional and conditional coverage may prepay insurance premiums for a certain period.
<sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

**第二項**  前項の場合において前納すべき額は、当該期間の各月の保険料の額から政令で定める額を控除した額とする。
<sup>art-165/par-2 · https://japanlaw.org/ja/health-insurance-act/art-165/par-2 · https://japanlaw.org/l/211AC0000000070/art-165/par-2</sup>
The amount of tax to be prepaid in the case of the preceding paragraph is the amount of monthly insurance premiums for the period after deducting the amount specified by Cabinet Order.
<sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

**第三項**  第一項の規定により前納された保険料については、前納に係る期間の各月の初日が到来したときに、それぞれその月の保険料が納付されたものとみなす。
<sup>art-165/par-3 · https://japanlaw.org/ja/health-insurance-act/art-165/par-3 · https://japanlaw.org/l/211AC0000000070/art-165/par-3</sup>
With respect to insurance premiums prepaid pursuant to the provisions of paragraph (1), the insurance premium for each month is deemed to have been paid on the first day of each month in the period pertaining to the prepayment.
<sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

**第四項**  前三項に定めるもののほか、保険料の前納の手続、前納された保険料の還付その他保険料の前納に関して必要な事項は、政令で定める。
<sup>art-165/par-4 · https://japanlaw.org/ja/health-insurance-act/art-165/par-4 · https://japanlaw.org/l/211AC0000000070/art-165/par-4</sup>
Beyond what is provided for in the preceding three paragraphs, the procedure for prepaying insurance premiums, contribution refunds, and other necessary matters relating to prepaid insurance premiums are specified by Cabinet Order.
<sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

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## Cites
- art-165/par-2: 前項 → 健康保険法 第百六十五条第一項 (Article 165, paragraph (1)), art-165/par-1 — https://japanlaw.org/ja/health-insurance-act/art-165/par-1 · https://japanlaw.org/l/211AC0000000070/art-165/par-1
- art-165/par-3: 第一項 → 健康保険法 第百六十五条第一項 (Article 165, paragraph (1)), art-165/par-1 — https://japanlaw.org/ja/health-insurance-act/art-165/par-1 · https://japanlaw.org/l/211AC0000000070/art-165/par-1
- art-165/par-4: 前三項 → 健康保険法 第百六十五条第一項 (Article 165, paragraph (1)), art-165/par-1 — https://japanlaw.org/ja/health-insurance-act/art-165/par-1 · https://japanlaw.org/l/211AC0000000070/art-165/par-1
- art-165/par-4: 前三項 → 健康保険法 第百六十五条第二項 (Article 165, paragraph (2)), art-165/par-2 — https://japanlaw.org/ja/health-insurance-act/art-165/par-2 · https://japanlaw.org/l/211AC0000000070/art-165/par-2
- art-165/par-4: 前三項 → 健康保険法 第百六十五条第三項 (Article 165, paragraph (3)), art-165/par-3 — https://japanlaw.org/ja/health-insurance-act/art-165/par-3 · https://japanlaw.org/l/211AC0000000070/art-165/par-3

## Cited by

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

- 健康保険法 第百六十五条第二項（任意継続被保険者の保険料の前納） — https://japanlaw.org/ja/health-insurance-act/art-165/par-2 · https://japanlaw.org/l/211AC0000000070/art-165/par-2
- 健康保険法 第百六十五条第三項（任意継続被保険者の保険料の前納） — https://japanlaw.org/ja/health-insurance-act/art-165/par-3 · https://japanlaw.org/l/211AC0000000070/art-165/par-3
- 健康保険法 第百六十五条第四項（任意継続被保険者の保険料の前納） — https://japanlaw.org/ja/health-insurance-act/art-165/par-4 · https://japanlaw.org/l/211AC0000000070/art-165/par-4
- 健康保険法 附則第二条第七項（健康保険組合の財政調整） — https://japanlaw.org/ja/health-insurance-act/suppl-2111-70/art-2/par-7 · https://japanlaw.org/l/211AC0000000070/suppl-2111-70/art-2/par-7

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## Sources

- e-Gov 法令検索, Digital Agency (デジタル庁) — 健康保険法 — the text in force from 2026-10-01 (https://laws.e-gov.go.jp/law/211AC0000000070/20261001_507AC0000000087), retrieved 2026-10-10
- Japanese Law Translation Database System, Ministry of Justice (法務省) — Health Insurance Act — Ministry of Justice translation (https://www.japaneselawtranslation.go.jp/en/laws/view/3266/tb), retrieved 2026-10-10
- This site's parser, version 189 — 健康保険法 — structure, counts, cross-references and defined terms, computed 2026-10-10
