# 民法 / Civil Code — 第三百九十八条の二十一 (Article 398-21) - 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: 第三百九十八条の二十一 (Article 398-21)（根抵当権の極度額の減額請求） — address `art-398-21` - Text in force since: 2026-06-24 - URL (the page that opens at this provision): https://japanlaw.org/en/civil-code/art-398-21 - Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/129AC0000000089/art-398-21 - 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. --- ### 第三百九十八条の二十一（根抵当権の極度額の減額請求） — (Requests for Reductions in Maximum Amount of Revolving Mortgages) caption: Ministry of Justice translation — Japanese Law Translation Database System art-398-21 · https://japanlaw.org/en/civil-code/art-398-21 · https://japanlaw.org/l/129AC0000000089/art-398-21 **第一項** 元本の確定後においては、根抵当権設定者は、その根抵当権の極度額を、現に存する債務の額と以後二年間に生ずべき利息その他の定期金及び債務の不履行による損害賠償の額とを加えた額に減額することを請求することができる。 art-398-21/par-1 · https://japanlaw.org/en/civil-code/art-398-21/par-1 · https://japanlaw.org/l/129AC0000000089/art-398-21/par-1 After the principal is fixed, the mortgagor of the revolving mortgage may request a reduction in the maximum amount of that revolving mortgage, to the amount of the obligations actually in existence plus the amount of the periodic payments including interest and the amount of damages due to default in obligations should arise in the following two years. Ministry of Justice translation — Japanese Law Translation Database System **第二項** 第三百九十八条の十六の登記がされている根抵当権の極度額の減額については、前項の規定による請求は、そのうちの一個の不動産についてすれば足りる。 art-398-21/par-2 · https://japanlaw.org/en/civil-code/art-398-21/par-2 · https://japanlaw.org/l/129AC0000000089/art-398-21/par-2 As to the reduction in the maximum amount of a revolving mortgage registered pursuant to Article 398-16, it suffices to make the request referred to in the preceding paragraph with respect to one of those immovables. Ministry of Justice translation — Japanese Law Translation Database System --- ## Cites - art-398-21/par-2: 第三百九十八条の十六 → 民法 第三百九十八条の十六 (Article 398-16), art-398-16 — https://japanlaw.org/en/civil-code/art-398-16 · https://japanlaw.org/l/129AC0000000089/art-398-16 - art-398-21/par-2: 前項 → 民法 第三百九十八条の二十一第一項 (Article 398-21, paragraph (1)), art-398-21/par-1 — https://japanlaw.org/en/civil-code/art-398-21/par-1 · https://japanlaw.org/l/129AC0000000089/art-398-21/par-1 ## Cited by 1 provision cites this one. No official source publishes this direction. - 民法 第三百九十八条の二十一第二項（根抵当権の極度額の減額請求） — https://japanlaw.org/en/civil-code/art-398-21/par-2 · https://japanlaw.org/l/129AC0000000089/art-398-21/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