# 民法 / Civil Code — 第千四十二条 (Article 1042)

- 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: 第千四十二条 (Article 1042)（遺留分の帰属及びその割合） — address `art-1042`
- Text in force since: 2026-06-24
- URL (the page that opens at this provision): https://japanlaw.org/ja/civil-code/art-1042
- Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/129AC0000000089/art-1042
- 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.

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### 第千四十二条（遺留分の帰属及びその割合） — Devolution of the Statutory Reserved Share and the Proportion Thereof
<sup>caption: machine translation, not official</sup>
<sup>art-1042 · https://japanlaw.org/ja/civil-code/art-1042 · https://japanlaw.org/l/129AC0000000089/art-1042</sup>

  **第一項**  兄弟姉妹以外の相続人は、遺留分として、次条第一項に規定する遺留分を算定するための財産の価額に、次の各号に掲げる区分に応じてそれぞれ当該各号に定める割合を乗じた額を受ける。
  <sup>art-1042/par-1 · https://japanlaw.org/ja/civil-code/art-1042/par-1 · https://japanlaw.org/l/129AC0000000089/art-1042/par-1</sup>
  Heirs other than siblings receive, as the statutory reserved share, the amount obtained by multiplying the value of the property for calculating the statutory reserved share prescribed in paragraph (1) of the following Article by the proportion specified in each of the following items according to the categories set forth in those items.
  <sup>machine translation, not official</sup>

    **一**  直系尊属のみが相続人である場合　三分の一
    <sup>art-1042/par-1/item-1 · https://japanlaw.org/ja/civil-code/art-1042/par-1/item-1 · https://japanlaw.org/l/129AC0000000089/art-1042/par-1/item-1</sup>
    if only lineal ascendants are the heirs: one-third;
    <sup>machine translation, not official</sup>

    **二**  前号に掲げる場合以外の場合　二分の一
    <sup>art-1042/par-1/item-2 · https://japanlaw.org/ja/civil-code/art-1042/par-1/item-2 · https://japanlaw.org/l/129AC0000000089/art-1042/par-1/item-2</sup>
    in a case other than that set forth in the preceding item: one-half.
    <sup>machine translation, not official</sup>

  **第二項**  相続人が数人ある場合には、前項各号に定める割合は、これらに第九百条及び第九百一条の規定により算定したその各自の相続分を乗じた割合とする。
  <sup>art-1042/par-2 · https://japanlaw.org/ja/civil-code/art-1042/par-2 · https://japanlaw.org/l/129AC0000000089/art-1042/par-2</sup>
  If there are two or more heirs, the proportions specified in the items of the preceding paragraph are the proportions obtained by multiplying them by each heir's share of the estate calculated pursuant to the provisions of Articles 900 and 901.
  <sup>machine translation, not official</sup>

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## Cites
- art-1042/par-1: 次条第一項 → 民法 第千四十三条第一項 (Article 1043, paragraph (1)), art-1043/par-1 — https://japanlaw.org/ja/civil-code/art-1043/par-1 · https://japanlaw.org/l/129AC0000000089/art-1043/par-1
- art-1042/par-1/item-2: 前号 → 民法 第千四十二条第一項第一号 (Article 1042, paragraph (1), item (i)), art-1042/par-1/item-1 — https://japanlaw.org/ja/civil-code/art-1042/par-1/item-1 · https://japanlaw.org/l/129AC0000000089/art-1042/par-1/item-1
- art-1042/par-2: 前項 → 民法 第千四十二条第一項 (Article 1042, paragraph (1)), art-1042/par-1 — https://japanlaw.org/ja/civil-code/art-1042/par-1 · https://japanlaw.org/l/129AC0000000089/art-1042/par-1
- art-1042/par-2: 第九百条 → 民法 第九百条 (Article 900), art-900 — https://japanlaw.org/ja/civil-code/art-900 · https://japanlaw.org/l/129AC0000000089/art-900
- art-1042/par-2: 第九百一条 → 民法 第九百一条 (Article 901), art-901 — https://japanlaw.org/ja/civil-code/art-901 · https://japanlaw.org/l/129AC0000000089/art-901

## Cited by

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

- 民法 第千四十二条第一項第二号（遺留分の帰属及びその割合） — https://japanlaw.org/ja/civil-code/art-1042/par-1/item-2 · https://japanlaw.org/l/129AC0000000089/art-1042/par-1/item-2
- 民法 第千四十二条第二項（遺留分の帰属及びその割合） — https://japanlaw.org/ja/civil-code/art-1042/par-2 · https://japanlaw.org/l/129AC0000000089/art-1042/par-2
- 民法 第千四十六条第二項（遺留分侵害額の請求） — https://japanlaw.org/ja/civil-code/art-1046/par-2 · https://japanlaw.org/l/129AC0000000089/art-1046/par-2
- 民法 第千四十七条第一項（受遺者又は受贈者の負担額） — https://japanlaw.org/ja/civil-code/art-1047/par-1 · https://japanlaw.org/l/129AC0000000089/art-1047/par-1

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## 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
- claude-sonnet-5-5 — Machine translation, batch civil-code-20261011T170941-010, translated 2026-10-12
- This site's parser, version 190 — 民法 — structure, counts, cross-references and defined terms, computed 2026-10-11