# 民法 / Civil Code — 第四百六十六条 (Article 466) - 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: 第四百六十六条 (Article 466)（債権の譲渡性） — address `art-466` - Text in force since: 2026-06-24 - URL (the page that opens at this provision): https://japanlaw.org/en/civil-code/art-466 - Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/129AC0000000089/art-466 - 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. --- ### 第四百六十六条（債権の譲渡性） — (Assignability of Claims) caption: Ministry of Justice translation — Japanese Law Translation Database System art-466 · https://japanlaw.org/en/civil-code/art-466 · https://japanlaw.org/l/129AC0000000089/art-466 **第一項** 債権は、譲り渡すことができる。ただし、その性質がこれを許さないときは、この限りでない。 art-466/par-1 · https://japanlaw.org/en/civil-code/art-466/par-1 · https://japanlaw.org/l/129AC0000000089/art-466/par-1 A claim may be assigned; provided, however, that this does not apply if its nature does not permit the assignment. Ministry of Justice translation — Japanese Law Translation Database System **第二項** 当事者が債権の譲渡を禁止し、又は制限する旨の意思表示（以下「譲渡制限の意思表示」という。）をしたときであっても、債権の譲渡は、その効力を妨げられない。 art-466/par-2 · https://japanlaw.org/en/civil-code/art-466/par-2 · https://japanlaw.org/l/129AC0000000089/art-466/par-2 Even if a party to a claim manifests the intention to prohibit or restrict the assignment of the claim (referred to as the "manifestation of intention to restrict assignment" below), the validity of the assignment of the claim is not impaired. Ministry of Justice translation — Japanese Law Translation Database System **第三項** 前項に規定する場合には、譲渡制限の意思表示がされたことを知り、又は重大な過失によって知らなかった譲受人その他の第三者に対しては、債務者は、その債務の履行を拒むことができ、かつ、譲渡人に対する弁済その他の債務を消滅させる事由をもってその第三者に対抗することができる。 art-466/par-3 · https://japanlaw.org/en/civil-code/art-466/par-3 · https://japanlaw.org/l/129AC0000000089/art-466/par-3 In the case prescribed in the preceding paragraph, the obligor may refuse to perform the obligation to a third party such as the assignee that knew or did not know due to gross negligence that the manifestation of intention to restrict assignment was made, and may duly assert against the third party any event that results in extinguishment of the obligation such as payment to the assignor. Ministry of Justice translation — Japanese Law Translation Database System **第四項** 前項の規定は、債務者が債務を履行しない場合において、同項に規定する第三者が相当の期間を定めて譲渡人への履行の催告をし、その期間内に履行がないときは、その債務者については、適用しない。 art-466/par-4 · https://japanlaw.org/en/civil-code/art-466/par-4 · https://japanlaw.org/l/129AC0000000089/art-466/par-4 The provisions of the preceding paragraph do not apply if the obligor does not perform the obligation, and the third party prescribed in that paragraph makes a demand to the obligor for the performance to the assignor by specifying a reasonable period of time, but the obligor does not perform the obligation within that period. Ministry of Justice translation — Japanese Law Translation Database System --- ## Cites - art-466/par-3: 前項 → 民法 第四百六十六条第二項 (Article 466, paragraph (2)), art-466/par-2 — https://japanlaw.org/en/civil-code/art-466/par-2 · https://japanlaw.org/l/129AC0000000089/art-466/par-2 - art-466/par-4: 前項 → 民法 第四百六十六条第三項 (Article 466, paragraph (3)), art-466/par-3 — https://japanlaw.org/en/civil-code/art-466/par-3 · https://japanlaw.org/l/129AC0000000089/art-466/par-3 ## Cited by 8 provisions cite this one. No official source publishes this direction. - 民法 第四百六十六条第三項（債権の譲渡性） — https://japanlaw.org/en/civil-code/art-466/par-3 · https://japanlaw.org/l/129AC0000000089/art-466/par-3 - 民法 第四百六十六条第四項（債権の譲渡性） — https://japanlaw.org/en/civil-code/art-466/par-4 · https://japanlaw.org/l/129AC0000000089/art-466/par-4 - 民法 第四百六十六条の四第一項（譲渡制限の意思表示がされた債権の差押え） — https://japanlaw.org/en/civil-code/art-466-4/par-1 · https://japanlaw.org/l/129AC0000000089/art-466-4/par-1 - 民法 第四百六十六条の五第一項（預金債権又は貯金債権に係る譲渡制限の意思表示の効力） — https://japanlaw.org/en/civil-code/art-466-5/par-1 · https://japanlaw.org/l/129AC0000000089/art-466-5/par-1 - 民法 第四百六十六条の六第三項（将来債権の譲渡性） — https://japanlaw.org/en/civil-code/art-466-6/par-3 · https://japanlaw.org/l/129AC0000000089/art-466-6/par-3 - 民法 第四百六十八条第二項（債権の譲渡における債務者の抗弁） — https://japanlaw.org/en/civil-code/art-468/par-2 · https://japanlaw.org/l/129AC0000000089/art-468/par-2 - 民法 第四百六十九条第三項（債権の譲渡における相殺権） — https://japanlaw.org/en/civil-code/art-469/par-3 · https://japanlaw.org/l/129AC0000000089/art-469/par-3 - 民法 附則第二十二条第一項（債権の譲渡に関する経過措置） — https://japanlaw.org/en/civil-code/suppl-4291-44/art-22/par-1 · https://japanlaw.org/l/129AC0000000089/suppl-4291-44/art-22/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