# 民法 / Civil Code — 第五百十一条 (Article 511) - 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: 第五百十一条 (Article 511)（差押えを受けた債権を受働債権とする相殺の禁止） — address `art-511` - Text in force since: 2026-06-24 - URL (the page that opens at this provision): https://japanlaw.org/en/civil-code/art-511 - Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/129AC0000000089/art-511 - 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. --- ### 第五百十一条（差押えを受けた債権を受働債権とする相殺の禁止） — (Prohibition of Set-Offs Against Any Claim Attached) caption: Ministry of Justice translation — Japanese Law Translation Database System art-511 · https://japanlaw.org/en/civil-code/art-511 · https://japanlaw.org/l/129AC0000000089/art-511 **第一項** 差押えを受けた債権の第三債務者は、差押え後に取得した債権による相殺をもって差押債権者に対抗することはできないが、差押え前に取得した債権による相殺をもって対抗することができる。 art-511/par-1 · https://japanlaw.org/en/civil-code/art-511/par-1 · https://japanlaw.org/l/129AC0000000089/art-511/par-1 A third party obligor of a claim which has been seized may not duly assert sett-off as defense with any claim acquired after the seizure against the attaching obligee, but may duly assert against the same a set-off based using a claim acquired before the seizure. Ministry of Justice translation — Japanese Law Translation Database System **第二項** 前項の規定にかかわらず、差押え後に取得した債権が差押え前の原因に基づいて生じたものであるときは、その第三債務者は、その債権による相殺をもって差押債権者に対抗することができる。ただし、第三債務者が差押え後に他人の債権を取得したときは、この限りでない。 art-511/par-2 · https://japanlaw.org/en/civil-code/art-511/par-2 · https://japanlaw.org/l/129AC0000000089/art-511/par-2 Notwithstanding the provisions of the preceding paragraph, if a claim acquired after the seizure has arisen from a cause that existed before the seizure, the third party obligor may duly assert a set-off based on the claim against the attaching obligee; provided, however, that this does not apply if the third party obligor acquires the claim of another person after the seizure. duly assert against the assignee a set-off based on a claim against the assignor Ministry of Justice translation — Japanese Law Translation Database System --- ## Cites - art-511/par-2: 前項 → 民法 第五百十一条第一項 (Article 511, paragraph (1)), art-511/par-1 — https://japanlaw.org/en/civil-code/art-511/par-1 · https://japanlaw.org/l/129AC0000000089/art-511/par-1 ## Cited by 2 provisions cite this one. No official source publishes this direction. - 民法 第五百十一条第二項（差押えを受けた債権を受働債権とする相殺の禁止） — https://japanlaw.org/en/civil-code/art-511/par-2 · https://japanlaw.org/l/129AC0000000089/art-511/par-2 - 民法 附則第二十六条第三項（相殺に関する経過措置） — https://japanlaw.org/en/civil-code/suppl-4291-44/art-26/par-3 · https://japanlaw.org/l/129AC0000000089/suppl-4291-44/art-26/par-3 --- ## 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