# 民法 / Civil Code — 第五百八十一条 (Article 581) - 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: 第五百八十一条 (Article 581)（買戻しの特約の対抗力） — address `art-581` - Text in force since: 2026-06-24 - URL (the page that opens at this provision): https://japanlaw.org/en/civil-code/art-581 - Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/129AC0000000089/art-581 - 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. --- ### 第五百八十一条（買戻しの特約の対抗力） — (Perfection of Special Agreement on Redemption) caption: Ministry of Justice translation — Japanese Law Translation Database System art-581 · https://japanlaw.org/en/civil-code/art-581 · https://japanlaw.org/l/129AC0000000089/art-581 **第一項** 売買契約と同時に買戻しの特約を登記したときは、買戻しは、第三者に対抗することができる。 art-581/par-1 · https://japanlaw.org/en/civil-code/art-581/par-1 · https://japanlaw.org/l/129AC0000000089/art-581/par-1 If the special agreement on redemption is registered simultaneously with the contract for sale, the redemption may be duly asserted against third parties. Ministry of Justice translation — Japanese Law Translation Database System **第二項** 前項の登記がされた後に第六百五条の二第一項に規定する対抗要件を備えた賃借人の権利は、その残存期間中一年を超えない期間に限り、売主に対抗することができる。ただし、売主を害する目的で賃貸借をしたときは、この限りでない。 art-581/par-2 · https://japanlaw.org/en/civil-code/art-581/par-2 · https://japanlaw.org/l/129AC0000000089/art-581/par-2 The rights of a lessee that satisfies the requirements for perfection prescribed in Article 605-2, paragraph (1) after the registration referred to in the preceding paragraph is completed may be duly asserted against the seller while the lease remains effective, limited to a period not exceeding one year; provided, however, that this does not apply if the lease is entered into with the purpose of harming the seller. Ministry of Justice translation — Japanese Law Translation Database System --- ## Cites - art-581/par-2: 前項 → 民法 第五百八十一条第一項 (Article 581, paragraph (1)), art-581/par-1 — https://japanlaw.org/en/civil-code/art-581/par-1 · https://japanlaw.org/l/129AC0000000089/art-581/par-1 - art-581/par-2: 第六百五条の二第一項 → 民法 第六百五条の二第一項 (Article 605-2, paragraph (1)), art-605-2/par-1 — https://japanlaw.org/en/civil-code/art-605-2/par-1 · https://japanlaw.org/l/129AC0000000089/art-605-2/par-1 ## Cited by 1 provision cites this one. No official source publishes this direction. - 民法 第五百八十一条第二項（買戻しの特約の対抗力） — https://japanlaw.org/en/civil-code/art-581/par-2 · https://japanlaw.org/l/129AC0000000089/art-581/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