# 民法 / Civil Code — 第六百十七条 (Article 617) - 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: 第六百十七条 (Article 617)（期間の定めのない賃貸借の解約の申入れ） — address `art-617` - Text in force since: 2026-06-24 - URL (the page that opens at this provision): https://japanlaw.org/ja/civil-code/art-617 - Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/129AC0000000089/art-617 - 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. --- ### 第六百十七条（期間の定めのない賃貸借の解約の申入れ） — (Notice of Termination of Leases with Indefinite Terms) caption: Ministry of Justice translation — Japanese Law Translation Database System art-617 · https://japanlaw.org/ja/civil-code/art-617 · https://japanlaw.org/l/129AC0000000089/art-617 **第一項** 当事者が賃貸借の期間を定めなかったときは、各当事者は、いつでも解約の申入れをすることができる。この場合においては、次の各号に掲げる賃貸借は、解約の申入れの日からそれぞれ当該各号に定める期間を経過することによって終了する。 art-617/par-1 · https://japanlaw.org/ja/civil-code/art-617/par-1 · https://japanlaw.org/l/129AC0000000089/art-617/par-1 If the parties do not specify the term of a lease, either party may give a notice of termination at any time. In these cases, a lease as stated in one of the following items terminates when the term prescribed in that item has passed after the day of the notice of termination: Ministry of Justice translation — Japanese Law Translation Database System **一** 土地の賃貸借　一年 art-617/par-1/item-1 · https://japanlaw.org/ja/civil-code/art-617/par-1/item-1 · https://japanlaw.org/l/129AC0000000089/art-617/par-1/item-1 leases of land:one year; Ministry of Justice translation — Japanese Law Translation Database System **二** 建物の賃貸借　三箇月 art-617/par-1/item-2 · https://japanlaw.org/ja/civil-code/art-617/par-1/item-2 · https://japanlaw.org/l/129AC0000000089/art-617/par-1/item-2 leases of buildings:three months; and Ministry of Justice translation — Japanese Law Translation Database System **三** 動産及び貸席の賃貸借　一日 art-617/par-1/item-3 · https://japanlaw.org/ja/civil-code/art-617/par-1/item-3 · https://japanlaw.org/l/129AC0000000089/art-617/par-1/item-3 leases of movables and party rooms:one day. Ministry of Justice translation — Japanese Law Translation Database System **第二項** 収穫の季節がある土地の賃貸借については、その季節の後次の耕作に着手する前に、解約の申入れをしなければならない。 art-617/par-2 · https://japanlaw.org/ja/civil-code/art-617/par-2 · https://japanlaw.org/l/129AC0000000089/art-617/par-2 With respect to leases of land with harvest seasons, the notice of termination must be given after the end of that season and before the next start of cultivation. Ministry of Justice translation — Japanese Law Translation Database System ## Cited by 2 provisions cite this one. No official source publishes this direction. - 民法 第六百十八条第一項（期間の定めのある賃貸借の解約をする権利の留保） — https://japanlaw.org/ja/civil-code/art-618/par-1 · https://japanlaw.org/l/129AC0000000089/art-618/par-1 - 民法 第六百十九条第一項（賃貸借の更新の推定等） — https://japanlaw.org/ja/civil-code/art-619/par-1 · https://japanlaw.org/l/129AC0000000089/art-619/par-1 --- ## 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