# 民法 / Civil Code — 第五百四条 (Article 504) - 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: 第五百四条 (Article 504)（債権者による担保の喪失等） — address `art-504` - Text in force since: 2026-06-24 - URL (the page that opens at this provision): https://japanlaw.org/ja/civil-code/art-504 - Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/129AC0000000089/art-504 - 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. --- ### 第五百四条（債権者による担保の喪失等） — (Loss of Security by Obligee) caption: Ministry of Justice translation — Japanese Law Translation Database System art-504 · https://japanlaw.org/ja/civil-code/art-504 · https://japanlaw.org/l/129AC0000000089/art-504 **第一項** 弁済をするについて正当な利益を有する者（以下この項において「代位権者」という。）がある場合において、債権者が故意又は過失によってその担保を喪失し、又は減少させたときは、その代位権者は、代位をするに当たって担保の喪失又は減少によって償還を受けることができなくなる限度において、その責任を免れる。その代位権者が物上保証人である場合において、その代位権者から担保の目的となっている財産を譲り受けた第三者及びその特定承継人についても、同様とする。 art-504/par-1 · https://japanlaw.org/ja/civil-code/art-504/par-1 · https://japanlaw.org/l/129AC0000000089/art-504/par-1 If there is a person that has legitimate interest in performing an obligation (referred to as a "person entitled to subrogation" in this paragraph below), and the obligee causes its security to be lost or diminished intentionally or negligently, the person entitled to subrogation is relieved from responsibility to the extent that that person can no longer seek the reimbursement due to the loss or diminution in the security available upon subrogation. If the person entitled to subrogation is a third-party collateral provider, the same applies to a third party that has acquired from the person entitled to subrogation the property that is the subject of security and to its specific successor. Ministry of Justice translation — Japanese Law Translation Database System **第二項** 前項の規定は、債権者が担保を喪失し、又は減少させたことについて取引上の社会通念に照らして合理的な理由があると認められるときは、適用しない。 art-504/par-2 · https://japanlaw.org/ja/civil-code/art-504/par-2 · https://japanlaw.org/l/129AC0000000089/art-504/par-2 The provisions of the preceding paragraph do not apply if the obligee is found to have reasonable grounds in light of common sense trading practices for causing the security to be lost or diminished. Ministry of Justice translation — Japanese Law Translation Database System --- ## Cites - art-504/par-1: この項 → 民法 第五百四条第一項 (Article 504, paragraph (1)), art-504/par-1 — https://japanlaw.org/ja/civil-code/art-504/par-1 · https://japanlaw.org/l/129AC0000000089/art-504/par-1 - art-504/par-2: 前項 → 民法 第五百四条第一項 (Article 504, paragraph (1)), art-504/par-1 — https://japanlaw.org/ja/civil-code/art-504/par-1 · https://japanlaw.org/l/129AC0000000089/art-504/par-1 ## Cited by 2 provisions cite this one. No official source publishes this direction. - 民法 第五百四条第一項（債権者による担保の喪失等） — https://japanlaw.org/ja/civil-code/art-504/par-1 · https://japanlaw.org/l/129AC0000000089/art-504/par-1 - 民法 第五百四条第二項（債権者による担保の喪失等） — https://japanlaw.org/ja/civil-code/art-504/par-2 · https://japanlaw.org/l/129AC0000000089/art-504/par-2 --- ## 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