# 民法 / Civil Code — 第三百九十八条の二十 (Article 398-20) - 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 (Article 398-20)（根抵当権の元本の確定事由） — address `art-398-20` - Text in force since: 2026-06-24 - URL (the page that opens at this provision): https://japanlaw.org/ja/civil-code/art-398-20 - Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/129AC0000000089/art-398-20 - 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（根抵当権の元本の確定事由） — (Grounds for Fixing of Principal of Revolving Mortgages) caption: Ministry of Justice translation — Japanese Law Translation Database System art-398-20 · https://japanlaw.org/ja/civil-code/art-398-20 · https://japanlaw.org/l/129AC0000000089/art-398-20 **第一項** 次に掲げる場合には、根抵当権の担保すべき元本は、確定する。 art-398-20/par-1 · https://japanlaw.org/ja/civil-code/art-398-20/par-1 · https://japanlaw.org/l/129AC0000000089/art-398-20/par-1 The principal secured by a revolving mortgage is fixed in the following cases: Ministry of Justice translation — Japanese Law Translation Database System **一** 根抵当権者が抵当不動産について競売若しくは担保不動産収益執行又は第三百七十二条において準用する第三百四条の規定による差押えを申し立てたとき。ただし、競売手続若しくは担保不動産収益執行手続の開始又は差押えがあったときに限る。 art-398-20/par-1/item-1 · https://japanlaw.org/ja/civil-code/art-398-20/par-1/item-1 · https://japanlaw.org/l/129AC0000000089/art-398-20/par-1/item-1 if the revolving mortgagee has filed, with respect to the mortgaged immovables, a petition for auction or enforcement against earnings from secured immovable property or the attachment under the provisions of Article 304 as applied mutatis mutandis pursuant to Article 372;provided, however, that these provisions apply only if the commencement of either auction procedures or enforcement against earnings from secured immovable property, or a seizure has been effected; Ministry of Justice translation — Japanese Law Translation Database System **二** 根抵当権者が抵当不動産に対して滞納処分による差押えをしたとき。 art-398-20/par-1/item-2 · https://japanlaw.org/ja/civil-code/art-398-20/par-1/item-2 · https://japanlaw.org/l/129AC0000000089/art-398-20/par-1/item-2 if the revolving mortgagee has effected an attachment for disposition of delinquency against the mortgaged immovables; Ministry of Justice translation — Japanese Law Translation Database System **三** 根抵当権者が抵当不動産に対する競売手続の開始又は滞納処分による差押えがあったことを知った時から二週間を経過したとき。 art-398-20/par-1/item-3 · https://japanlaw.org/ja/civil-code/art-398-20/par-1/item-3 · https://japanlaw.org/l/129AC0000000089/art-398-20/par-1/item-3 if two weeks have passed from the time when the revolving mortgagee acquired knowledge of the commencement of auction procedures or seizure for disposition to collect arrears against the mortgaged immovables; or Ministry of Justice translation — Japanese Law Translation Database System **四** 債務者又は根抵当権設定者が破産手続開始の決定を受けたとき。 art-398-20/par-1/item-4 · https://japanlaw.org/ja/civil-code/art-398-20/par-1/item-4 · https://japanlaw.org/l/129AC0000000089/art-398-20/par-1/item-4 if the obligor or mortgagor of the revolving mortgage has become subject to an order commencing bankruptcy proceeding. Ministry of Justice translation — Japanese Law Translation Database System **第二項** 前項第三号の競売手続の開始若しくは差押え又は同項第四号の破産手続開始の決定の効力が消滅したときは、担保すべき元本は、確定しなかったものとみなす。ただし、元本が確定したものとしてその根抵当権又はこれを目的とする権利を取得した者があるときは、この限りでない。 art-398-20/par-2 · https://japanlaw.org/ja/civil-code/art-398-20/par-2 · https://japanlaw.org/l/129AC0000000089/art-398-20/par-2 If the commencement of auction procedures, the seizure under item (iii) of the preceding paragraph or the order commencing bankruptcy proceeding under item (iv) of that paragraph ceases to be effective, it is deemed that the principal secured was not fixed; provided, however, that this does not apply if a person has acquired that revolving mortgage or a right for which the revolving mortgage is the subject on the assumption that the principal was fixed. Ministry of Justice translation — Japanese Law Translation Database System --- ## Cites - art-398-20/par-1/item-1: 第三百七十二条 → 民法 第三百七十二条 (Article 372), art-372 — https://japanlaw.org/ja/civil-code/art-372 · https://japanlaw.org/l/129AC0000000089/art-372 - art-398-20/par-1/item-1: 第三百四条 → 民法 第三百四条 (Article 304), art-304 — https://japanlaw.org/ja/civil-code/art-304 · https://japanlaw.org/l/129AC0000000089/art-304 - art-398-20/par-2: 前項第三号 → 民法 第三百九十八条の二十第一項第三号 (Article 398-20, paragraph (1), item (iii)), art-398-20/par-1/item-3 — https://japanlaw.org/ja/civil-code/art-398-20/par-1/item-3 · https://japanlaw.org/l/129AC0000000089/art-398-20/par-1/item-3 - art-398-20/par-2: 同項第四号 → 民法 第三百九十八条の二十第一項第四号 (Article 398-20, paragraph (1), item (iv)), art-398-20/par-1/item-4 — https://japanlaw.org/ja/civil-code/art-398-20/par-1/item-4 · https://japanlaw.org/l/129AC0000000089/art-398-20/par-1/item-4 ## Cited by 3 provisions cite this one. No official source publishes this direction. - 不動産登記法 第九十三条第一項（根抵当権の元本の確定の登記） — https://japanlaw.org/ja/real-property-registration-act/art-93/par-1 · https://japanlaw.org/l/416AC0000000123/art-93/par-1 - 民法 第三百九十八条の二十第二項（根抵当権の元本の確定事由） — https://japanlaw.org/ja/civil-code/art-398-20/par-2 · https://japanlaw.org/l/129AC0000000089/art-398-20/par-2 - 民法 附則第十条第一項（元本の確定の時期に関する経過措置） — https://japanlaw.org/ja/civil-code/suppl-3461-99/art-10/par-1 · https://japanlaw.org/l/129AC0000000089/suppl-3461-99/art-10/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