# 民法 / Civil Code — 第千四十八条 (Article 1048)

- 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: 第千四十八条 (Article 1048)（遺留分侵害額請求権の期間の制限） — address `art-1048`
- Text in force since: 2026-06-24
- URL (the page that opens at this provision): https://japanlaw.org/ja/civil-code/art-1048
- Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/129AC0000000089/art-1048
- 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.

---

### 第千四十八条（遺留分侵害額請求権の期間の制限） — Limitation of the Period for the Claim for the Amount of Infringement of the Statutory Reserved Share
<sup>caption: machine translation, not official</sup>
<sup>art-1048 · https://japanlaw.org/ja/civil-code/art-1048 · https://japanlaw.org/l/129AC0000000089/art-1048</sup>

  **第一項**  遺留分侵害額の請求権は、遺留分権利者が、相続の開始及び遺留分を侵害する贈与又は遺贈があったことを知った時から一年間行使しないときは、時効によって消滅する。相続開始の時から十年を経過したときも、同様とする。
  <sup>art-1048/par-1 · https://japanlaw.org/ja/civil-code/art-1048/par-1 · https://japanlaw.org/l/129AC0000000089/art-1048/par-1</sup>
  If a person entitled to the statutory reserved share does not exercise the right to claim the amount of infringement of the statutory reserved share within one year from the time the person learns of the opening of succession and the existence of a gift or legacy that infringes the statutory reserved share, that right is extinguished by prescription. The same applies when ten years have passed since the time the succession opened.
  <sup>machine translation, not official</sup>

---

## 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-20261011T170941-011, translated 2026-10-12
- This site's parser, version 190 — 民法 — structure, counts, cross-references and defined terms, computed 2026-10-11