# 民法 / Civil Code — 第百十八条 (Article 118)

- Law: 民法 (Civil Code), 明治二十九年法律第八十九号
- English title "Civil Code": 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: 第百十八条 (Article 118)（単独行為の無権代理） — address `art-118`
- Text in force since: 2026-06-24
- URL (the page that opens at this provision): https://japanlaw.org/en/civil-code/art-118
- Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/129AC0000000089/art-118
- 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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### 第百十八条（単独行為の無権代理） — (Unauthorized Agency in Unilateral Juridical Act)
<sup>caption: Ministry of Justice translation — Japanese Law Translation Database System</sup>
<sup>art-118 · https://japanlaw.org/en/civil-code/art-118 · https://japanlaw.org/l/129AC0000000089/art-118</sup>

    **第一項**  単独行為については、その行為の時において、相手方が、代理人と称する者が代理権を有しないで行為をすることに同意し、又はその代理権を争わなかったときに限り、第百十三条から前条までの規定を準用する。代理権を有しない者に対しその同意を得て単独行為をしたときも、同様とする。
    <sup>art-118/par-1 · https://japanlaw.org/en/civil-code/art-118/par-1 · https://japanlaw.org/l/129AC0000000089/art-118/par-1</sup>
    With respect to a unilateral juridical act, the provisions of Articles 113 through the preceding Article apply mutatis mutandis only if the counterparty, at the time of the act, either agrees for the person holding themselves out as an agent to act without the authority to represent or does not contest the authority to represent of that person. The same applies if that counterparty does a unilateral juridical act to a person without authority to represent with the consent of that person.
    <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

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## Cites
- art-118/par-1: 第百十三条から前条まで → 民法 第百十三条 (Article 113), art-113 — https://japanlaw.org/en/civil-code/art-113 · https://japanlaw.org/l/129AC0000000089/art-113
- art-118/par-1: 第百十三条から前条まで → 民法 第百十四条 (Article 114), art-114 — https://japanlaw.org/en/civil-code/art-114 · https://japanlaw.org/l/129AC0000000089/art-114
- art-118/par-1: 第百十三条から前条まで → 民法 第百十五条 (Article 115), art-115 — https://japanlaw.org/en/civil-code/art-115 · https://japanlaw.org/l/129AC0000000089/art-115
- art-118/par-1: 第百十三条から前条まで → 民法 第百十六条 (Article 116), art-116 — https://japanlaw.org/en/civil-code/art-116 · https://japanlaw.org/l/129AC0000000089/art-116
- art-118/par-1: 第百十三条から前条まで → 民法 第百十七条 (Article 117), art-117 — https://japanlaw.org/en/civil-code/art-117 · https://japanlaw.org/l/129AC0000000089/art-117

## Cited by

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

- 民法 附則第七条第二項（代理に関する経過措置） — https://japanlaw.org/en/civil-code/suppl-4291-44/art-7/par-2 · https://japanlaw.org/l/129AC0000000089/suppl-4291-44/art-7/par-2

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## Sources

- e-Gov 法令検索, Digital Agency (デジタル庁) — 民法 — the text in force from 2026-06-24 (https://laws.e-gov.go.jp/law/129AC0000000089/20260624_508AC0000000045), retrieved 2026-10-11
- Japanese Law Translation Database System, Ministry of Justice (法務省) — Civil Code — Ministry of Justice translation (part 1 of 2) (https://www.japaneselawtranslation.go.jp/en/laws/view/4848/tb), retrieved 2026-10-11
- This site's parser, version 190 — 民法 — structure, counts, cross-references and defined terms, computed 2026-10-11
