# 民法 / Civil Code — 第四百三十九条 (Article 439)

- 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: 第四百三十九条 (Article 439)（連帯債務者の一人による相殺等） — address `art-439`
- Text in force since: 2026-06-24
- URL (the page that opens at this provision): https://japanlaw.org/ja/civil-code/art-439
- Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/129AC0000000089/art-439
- 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.

---

### 第四百三十九条（連帯債務者の一人による相殺等） — (Set-Offs by One of Joint and Several Obligors)
<sup>caption: Ministry of Justice translation — Japanese Law Translation Database System</sup>
<sup>art-439 · https://japanlaw.org/ja/civil-code/art-439 · https://japanlaw.org/l/129AC0000000089/art-439</sup>

      **第一項**  連帯債務者の一人が債権者に対して債権を有する場合において、その連帯債務者が相殺を援用したときは、債権は、全ての連帯債務者の利益のために消滅する。
      <sup>art-439/par-1 · https://japanlaw.org/ja/civil-code/art-439/par-1 · https://japanlaw.org/l/129AC0000000089/art-439/par-1</sup>
      If one of the joint and several obligors has a claim against the obligee and invokes a set-off, the claim is extinguished for the benefit of all joint and several obligors.
      <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

      **第二項**  前項の債権を有する連帯債務者が相殺を援用しない間は、その連帯債務者の負担部分の限度において、他の連帯債務者は、債権者に対して債務の履行を拒むことができる。
      <sup>art-439/par-2 · https://japanlaw.org/ja/civil-code/art-439/par-2 · https://japanlaw.org/l/129AC0000000089/art-439/par-2</sup>
      Until the joint and several obligor that has the claim referred to in the preceding paragraph invokes a set-off, other joint and several obligors may refuse to perform the obligation to the obligee only to the extent of that joint and several obligor's share of the obligation.
      <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

---

## Cites
- art-439/par-2: 前項 → 民法 第四百三十九条第一項 (Article 439, paragraph (1)), art-439/par-1 — https://japanlaw.org/ja/civil-code/art-439/par-1 · https://japanlaw.org/l/129AC0000000089/art-439/par-1

## Cited by

3 provisions cite this one. No official source publishes this direction.

- 民法 第四百三十九条第二項（連帯債務者の一人による相殺等） — https://japanlaw.org/ja/civil-code/art-439/par-2 · https://japanlaw.org/l/129AC0000000089/art-439/par-2
- 民法 第四百四十一条第一項（相対的効力の原則） — https://japanlaw.org/ja/civil-code/art-441/par-1 · https://japanlaw.org/l/129AC0000000089/art-441/par-1
- 民法 第四百五十八条第一項（連帯保証人について生じた事由の効力） — https://japanlaw.org/ja/civil-code/art-458/par-1 · https://japanlaw.org/l/129AC0000000089/art-458/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
