# 健康保険法 / Health Insurance Act — 第百八十一条 (Article 181) - Law: 健康保険法 (Health Insurance Act), 大正十一年法律第七十号 - English title "Health Insurance Act": 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: 第百八十一条 (Article 181)（延滞金） — address `art-181` - Text in force since: 2026-10-01 - URL (the page that opens at this provision): https://japanlaw.org/ja/health-insurance-act/art-181 - Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/211AC0000000070/art-181 - 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. --- ### 第百八十一条（延滞金） — (Delinquent Charges) caption: Ministry of Justice translation — Japanese Law Translation Database System art-181 · https://japanlaw.org/ja/health-insurance-act/art-181 · https://japanlaw.org/l/211AC0000000070/art-181 **第一項** 前条第一項の規定によって督促をしたときは、保険者等は、徴収金額に、納期限の翌日から徴収金完納又は財産差押えの日の前日までの期間の日数に応じ、年十四・六パーセント（当該督促が保険料に係るものであるときは、当該納期限の翌日から三月を経過する日までの期間については、年七・三パーセント）の割合を乗じて計算した延滞金を徴収する。ただし、次の各号のいずれかに該当する場合又は滞納につきやむを得ない事情があると認められる場合は、この限りでない。 art-181/par-1 · https://japanlaw.org/ja/health-insurance-act/art-181/par-1 · https://japanlaw.org/l/211AC0000000070/art-181/par-1 When payment is demanded pursuant to the provisions of paragraph (1) of the preceding Article, the insurer collects delinquent charges that are calculated by multiplying the money to be collected by 14.6% per year (if the demand pertains to insurance premiums, 7.3% per year for the period from the day following the due date to the day when three months have elapsed) in accordance with the number of days from the date following the due date of the payment until the date of full payment or the date prior to the date of attachment of property; provided, however, this does not apply in the case of any of the following items or when unavoidable reasons for the delinquency are found: Ministry of Justice translation — Japanese Law Translation Database System **一** 徴収金額が千円未満であるとき。 art-181/par-1/item-1 · https://japanlaw.org/ja/health-insurance-act/art-181/par-1/item-1 · https://japanlaw.org/l/211AC0000000070/art-181/par-1/item-1 the amount of money to be collected is less than 1,000 yen; Ministry of Justice translation — Japanese Law Translation Database System **二** 納期を繰り上げて徴収するとき。 art-181/par-1/item-2 · https://japanlaw.org/ja/health-insurance-act/art-181/par-1/item-2 · https://japanlaw.org/l/211AC0000000070/art-181/par-1/item-2 the money is collected before the due date; or Ministry of Justice translation — Japanese Law Translation Database System **三** 納付義務者の住所若しくは居所が国内にないため、又はその住所及び居所がいずれも明らかでないため、公示送達の方法によって督促をしたとき。 art-181/par-1/item-3 · https://japanlaw.org/ja/health-insurance-act/art-181/par-1/item-3 · https://japanlaw.org/l/211AC0000000070/art-181/par-1/item-3 the demand was made through service by publication since the domicile or residence of the person obliged to pay is located outside Japan or both the domicile and residence are unknown. Ministry of Justice translation — Japanese Law Translation Database System **第二項** 前項の場合において、徴収金額の一部につき納付があったときは、その納付の日以後の期間に係る延滞金の計算の基礎となる徴収金は、その納付のあった徴収金額を控除した金額による。 art-181/par-2 · https://japanlaw.org/ja/health-insurance-act/art-181/par-2 · https://japanlaw.org/l/211AC0000000070/art-181/par-2 In case of the preceding paragraph, when a portion of the amount to be collected is paid, the amount to be collected that is the principal amount for the calculation of the delinquent charges pertaining to the period after the date of the payment is the amount remaining after deducting the amount of the payment from the amount to be collected. Ministry of Justice translation — Japanese Law Translation Database System **第三項** 延滞金を計算するに当たり、徴収金額に千円未満の端数があるときは、その端数は、切り捨てる。 art-181/par-3 · https://japanlaw.org/ja/health-insurance-act/art-181/par-3 · https://japanlaw.org/l/211AC0000000070/art-181/par-3 In calculating the delinquent charges, the amount of the money collected is to be rounded down to the nearest 1,000 yen. Ministry of Justice translation — Japanese Law Translation Database System **第四項** 督促状に指定した期限までに徴収金を完納したとき、又は前三項の規定によって計算した金額が百円未満であるときは、延滞金は、徴収しない。 art-181/par-4 · https://japanlaw.org/ja/health-insurance-act/art-181/par-4 · https://japanlaw.org/l/211AC0000000070/art-181/par-4 No delinquent charges are collected when the money to be collected is paid in full by the due date specified in the demand note, or when the amount calculated pursuant to the provisions of the preceding three paragraphs is less than 100 yen. Ministry of Justice translation — Japanese Law Translation Database System **第五項** 延滞金の金額に百円未満の端数があるときは、その端数は、切り捨てる。 art-181/par-5 · https://japanlaw.org/ja/health-insurance-act/art-181/par-5 · https://japanlaw.org/l/211AC0000000070/art-181/par-5 The amount of delinquent charges is to be rounded down to the nearest.100 yen. Ministry of Justice translation — Japanese Law Translation Database System --- ## Cites - art-181/par-1: 前条第一項 → 健康保険法 第百八十条第一項 (Article 180, paragraph (1)), art-180/par-1 — https://japanlaw.org/ja/health-insurance-act/art-180/par-1 · https://japanlaw.org/l/211AC0000000070/art-180/par-1 - art-181/par-2: 前項 → 健康保険法 第百八十一条第一項 (Article 181, paragraph (1)), art-181/par-1 — https://japanlaw.org/ja/health-insurance-act/art-181/par-1 · https://japanlaw.org/l/211AC0000000070/art-181/par-1 - art-181/par-4: 前三項 → 健康保険法 第百八十一条第一項 (Article 181, paragraph (1)), art-181/par-1 — https://japanlaw.org/ja/health-insurance-act/art-181/par-1 · https://japanlaw.org/l/211AC0000000070/art-181/par-1 - art-181/par-4: 前三項 → 健康保険法 第百八十一条第二項 (Article 181, paragraph (2)), art-181/par-2 — https://japanlaw.org/ja/health-insurance-act/art-181/par-2 · https://japanlaw.org/l/211AC0000000070/art-181/par-2 - art-181/par-4: 前三項 → 健康保険法 第百八十一条第三項 (Article 181, paragraph (3)), art-181/par-3 — https://japanlaw.org/ja/health-insurance-act/art-181/par-3 · https://japanlaw.org/l/211AC0000000070/art-181/par-3 ## Cited by 13 provisions cite this one. No official source publishes this direction. - 健康保険法 第三十九条第一項（資格の得喪の確認） — https://japanlaw.org/ja/health-insurance-act/art-39/par-1 · https://japanlaw.org/l/211AC0000000070/art-39/par-1 - 健康保険法 第百八十条第一項（保険料等の督促及び滞納処分） — https://japanlaw.org/ja/health-insurance-act/art-180/par-1 · https://japanlaw.org/l/211AC0000000070/art-180/par-1 - 健康保険法 第百八十一条第二項（延滞金） — https://japanlaw.org/ja/health-insurance-act/art-181/par-2 · https://japanlaw.org/l/211AC0000000070/art-181/par-2 - 健康保険法 第百八十一条第四項（延滞金） — https://japanlaw.org/ja/health-insurance-act/art-181/par-4 · https://japanlaw.org/l/211AC0000000070/art-181/par-4 - 健康保険法 第百八十一条の三第三項（協会による保険料の徴収） — https://japanlaw.org/ja/health-insurance-act/art-181-3/par-3 · https://japanlaw.org/l/211AC0000000070/art-181-3/par-3 - 健康保険法 第二百五条の二第一項第十号（機構への事務の委託） — https://japanlaw.org/ja/health-insurance-act/art-205-2/par-1/item-10 · https://japanlaw.org/l/211AC0000000070/art-205-2/par-1/item-10 - 健康保険法 附則第九条第一項（延滞金の割合の特例） — https://japanlaw.org/ja/health-insurance-act/suppl-2111-70/art-9/par-1 · https://japanlaw.org/l/211AC0000000070/suppl-2111-70/art-9/par-1 - 健康保険法 附則第二十五条第一項 — https://japanlaw.org/ja/health-insurance-act/suppl-4181-83/art-25/par-1 · https://japanlaw.org/l/211AC0000000070/suppl-4181-83/art-25/par-1 - 健康保険法 附則第二条第一項（適用区分） — https://japanlaw.org/ja/health-insurance-act/suppl-4211-36/art-2/par-1 · https://japanlaw.org/l/211AC0000000070/suppl-4211-36/art-2/par-1 - 健康保険法 附則第十七条第一項第三号（延滞金の割合の特例等に関する経過措置） — https://japanlaw.org/ja/health-insurance-act/suppl-4261-64/art-17/par-1/item-3 · https://japanlaw.org/l/211AC0000000070/suppl-4261-64/art-17/par-1/item-3 - 労働者災害補償保険法 附則第二条第一項（適用区分） — https://japanlaw.org/ja/industrial-accident-insurance-act/suppl-4211-36/art-2/par-1 · https://japanlaw.org/l/322AC0000000050/suppl-4211-36/art-2/par-1 - 厚生年金保険法 附則第二条第一項（適用区分） — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4211-36/art-2/par-1 · https://japanlaw.org/l/329AC0000000115/suppl-4211-36/art-2/par-1 - 国民年金法 附則第二条第一項（適用区分） — https://japanlaw.org/ja/national-pension-act/suppl-4211-36/art-2/par-1 · https://japanlaw.org/l/334AC0000000141/suppl-4211-36/art-2/par-1 --- ## Sources - e-Gov 法令検索, Digital Agency (デジタル庁) — 健康保険法 — the text in force from 2026-10-01 (https://laws.e-gov.go.jp/law/211AC0000000070/20261001_507AC0000000087), retrieved 2026-10-10 - Japanese Law Translation Database System, Ministry of Justice (法務省) — Health Insurance Act — Ministry of Justice translation (https://www.japaneselawtranslation.go.jp/en/laws/view/3266/tb), retrieved 2026-10-10 - This site's parser, version 189 — 健康保険法 — structure, counts, cross-references and defined terms, computed 2026-10-10