# 民法 / Civil Code — 第五百二十七条 (Article 527)

- 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: 第五百二十七条 (Article 527)（承諾の通知を必要としない場合における契約の成立時期） — address `art-527`
- Text in force since: 2026-06-24
- URL (the page that opens at this provision): https://japanlaw.org/en/civil-code/art-527
- Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/129AC0000000089/art-527
- 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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### 第五百二十七条（承諾の通知を必要としない場合における契約の成立時期） — (Time of Formation of Contract When No Notice of Acceptance Is Required)
<sup>caption: Ministry of Justice translation — Japanese Law Translation Database System</sup>
<sup>art-527 · https://japanlaw.org/en/civil-code/art-527 · https://japanlaw.org/l/129AC0000000089/art-527</sup>

      **第一項**  申込者の意思表示又は取引上の慣習により承諾の通知を必要としない場合には、契約は、承諾の意思表示と認めるべき事実があった時に成立する。
      <sup>art-527/par-1 · https://japanlaw.org/en/civil-code/art-527/par-1 · https://japanlaw.org/l/129AC0000000089/art-527/par-1</sup>
      If no notice of acceptance is required due to the offeror's manifestation of intention or customs of the transaction, a contract is formed upon the occurrence of any fact which should be regarded as a manifestation of intention of acceptance.
      <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

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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