# 高齢者の医療の確保に関する法律 / Act on Assurance of Medical Care for Elderly People — 第百二十一条 (Article 121) - Law: 高齢者の医療の確保に関する法律 (Act on Assurance of Medical Care for Elderly People), 昭和五十七年法律第八十号 - English title "Act on Assurance of Medical Care for Elderly People": 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: 第百二十一条 (Article 121)（確定後期高齢者支援金） — address `art-121` - Text in force since: 2026-10-01 - URL (the page that opens at this provision): https://japanlaw.org/en/elderly-medical-care-act/art-121 - Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/357AC0000000080/art-121 - 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. --- ### 第百二十一条（確定後期高齢者支援金） — (Final Medical Care Assistance for the Elderly Aged 75 and over) caption: Ministry of Justice translation — Japanese Law Translation Database System art-121 · https://japanlaw.org/en/elderly-medical-care-act/art-121 · https://japanlaw.org/l/357AC0000000080/art-121 **第一項** 第百十九条第一項の確定後期高齢者支援金の額は、次の各号に掲げる保険者の区分に応じ、当該各号に定める額とする。 art-121/par-1 · https://japanlaw.org/en/elderly-medical-care-act/art-121/par-1 · https://japanlaw.org/l/357AC0000000080/art-121/par-1 The amount of final Medical Care Assistance for the Elderly Aged 75 and over for Article 119, paragraph (1) is the amount specified in each of the following items in accordance with the category of insurers listed in the relevant item: Ministry of Justice translation — Japanese Law Translation Database System **一** 被用者保険等保険者　前々年度における全ての後期高齢者医療広域連合の保険納付対象総額の総額を厚生労働省令で定めるところにより算定した同年度における全ての保険者に係る加入者の総数で除して得た額に、厚生労働省令で定めるところにより算定した同年度における全ての被用者保険等保険者に係る加入者数を乗じて得た額に、同年度におけるイに掲げる額をロに掲げる額で除して得た率及び確定後期高齢者支援金調整率を乗じて得た額 art-121/par-1/item-1 · https://japanlaw.org/en/elderly-medical-care-act/art-121/par-1/item-1 · https://japanlaw.org/l/357AC0000000080/art-121/par-1/item-1 Insurers of employee insurance, etc.: the amount obtained by dividing the aggregate of the total amounts subject to insurance payment of all Associations of Medical Care Systems for the Elderly Aged 75 and older for the fiscal year before the previous fiscal year by the total number of participants for all Insurers in the same fiscal year calculated as specified by Order of the Ministry of Health, Labour and Welfare, multiplying the amount so obtained by the number of participants for all Insurers of employee insurance, etc. in the same fiscal year calculated as specified by Order of the Ministry of Health, Labour and Welfare, and further multiplying the amount so obtained by the rate obtained by dividing the amount set forth in (a) for the same fiscal year by the amount set forth in (b), and by the fixed old-old aid adjustment rate; machine translation, not official **イ** 当該被用者保険等保険者に係る標準報酬総額 art-121/par-1/item-1/sub-1 · https://japanlaw.org/en/elderly-medical-care-act/art-121/par-1/item-1/sub-1 · https://japanlaw.org/l/357AC0000000080/art-121/par-1/item-1/sub-1 the total amount of standard compensation pertaining to the Insurer of employee insurance, etc.; Ministry of Justice translation — Japanese Law Translation Database System **ロ** 全ての被用者保険等保険者に係る標準報酬総額の合計額 art-121/par-1/item-1/sub-2 · https://japanlaw.org/en/elderly-medical-care-act/art-121/par-1/item-1/sub-2 · https://japanlaw.org/l/357AC0000000080/art-121/par-1/item-1/sub-2 the sum of the Total Amount of Standard Fees pertaining to all Insurers of employee insurance, etc.; Ministry of Justice translation — Japanese Law Translation Database System **二** 被用者保険等保険者以外の保険者　前々年度における全ての後期高齢者医療広域連合の保険納付対象総額の総額を厚生労働省令で定めるところにより算定した同年度における全ての保険者に係る加入者の総数で除して得た額に、厚生労働省令で定めるところにより算定した同年度における当該保険者に係る加入者の数を乗じて得た額に、確定後期高齢者支援金調整率を乗じて得た額 art-121/par-1/item-2 · https://japanlaw.org/en/elderly-medical-care-act/art-121/par-1/item-2 · https://japanlaw.org/l/357AC0000000080/art-121/par-1/item-2 Insurers other than Insurers of employee insurance, etc.: the amount obtained by multiplying the amount obtained by multiplying the amount obtained by dividing the total of the total amounts subject to insurance payment of all Associations of Medical Care Systems for the Elderly Aged 75 and older in the fiscal year before the previous fiscal year by the total number of participants pertaining to all Insurers in the same fiscal year, calculated as specified by Order of the Ministry of Health, Labour and Welfare, by the number of participants pertaining to the relevant Insurer in the same fiscal year, calculated as specified by Order of the Ministry of Health, Labour and Welfare, by the fixed old-old aid adjustment rate. machine translation, not official **第二項** 前項各号の確定後期高齢者支援金調整率は、第十八条第二項第二号及び第十九条第二項第二号に掲げる事項についての達成状況、保険者に係る加入者の数等を勘案し、百分の九十から百分の百十の範囲内で政令で定めるところにより算定する。 art-121/par-2 · https://japanlaw.org/en/elderly-medical-care-act/art-121/par-2 · https://japanlaw.org/l/357AC0000000080/art-121/par-2 The fixed adjustment rate for the Medical Care Assistance for the Elderly Aged 75 and over referred to in the items of the preceding paragraph is calculated pursuant to the provisions of Cabinet Order within the range of 90 percent to 110 percent, in consideration of the degree of achievement of the particulars set forth in Article 18, paragraph (2), item (ii) and Article 19, paragraph (2), item (ii), the number of subscribers pertaining to insurers, and other factors. Ministry of Justice translation — Japanese Law Translation Database System --- ## Cites - art-121/par-1: 第百十九条第一項 → 高齢者の医療の確保に関する法律 第百十九条第一項 (Article 119, paragraph (1)), art-119/par-1 — https://japanlaw.org/en/elderly-medical-care-act/art-119/par-1 · https://japanlaw.org/l/357AC0000000080/art-119/par-1 - art-121/par-2: 前項 → 高齢者の医療の確保に関する法律 第百二十一条第一項 (Article 121, paragraph (1)), art-121/par-1 — https://japanlaw.org/en/elderly-medical-care-act/art-121/par-1 · https://japanlaw.org/l/357AC0000000080/art-121/par-1 - art-121/par-2: 第十八条第二項第二号 → 高齢者の医療の確保に関する法律 第十八条第二項第二号 (Article 18, paragraph (2), item (ii)), art-18/par-2/item-2 — https://japanlaw.org/en/elderly-medical-care-act/art-18/par-2/item-2 · https://japanlaw.org/l/357AC0000000080/art-18/par-2/item-2 - art-121/par-2: 第十九条第二項第二号 → 高齢者の医療の確保に関する法律 第十九条第二項第二号 (Article 19, paragraph (2), item (ii)), art-19/par-2/item-2 — https://japanlaw.org/en/elderly-medical-care-act/art-19/par-2/item-2 · https://japanlaw.org/l/357AC0000000080/art-19/par-2/item-2 ## Cited by 9 provisions cite this one. No official source publishes this direction. - 高齢者の医療の確保に関する法律 第三十五条第一項第一号イ（２）（確定前期高齢者交付金） — https://japanlaw.org/en/elderly-medical-care-act/art-35/par-1/item-1/sub-1/sub2-2 · https://japanlaw.org/l/357AC0000000080/art-35/par-1/item-1/sub-1/sub2-2 - 高齢者の医療の確保に関する法律 第三十五条第四項第一号（確定前期高齢者交付金） — https://japanlaw.org/en/elderly-medical-care-act/art-35/par-4/item-1 · https://japanlaw.org/l/357AC0000000080/art-35/par-4/item-1 - 高齢者の医療の確保に関する法律 第三十九条第一項第一号イ（２）（確定前期高齢者納付金） — https://japanlaw.org/en/elderly-medical-care-act/art-39/par-1/item-1/sub-1/sub2-2 · https://japanlaw.org/l/357AC0000000080/art-39/par-1/item-1/sub-1/sub2-2 - 高齢者の医療の確保に関する法律 第三十九条第一項第二号イ（２）（確定前期高齢者納付金） — https://japanlaw.org/en/elderly-medical-care-act/art-39/par-1/item-2/sub-1/sub2-2 · https://japanlaw.org/l/357AC0000000080/art-39/par-1/item-2/sub-1/sub2-2 - 高齢者の医療の確保に関する法律 第百条第一項（後期高齢者交付金） — https://japanlaw.org/en/elderly-medical-care-act/art-100/par-1 · https://japanlaw.org/l/357AC0000000080/art-100/par-1 - 高齢者の医療の確保に関する法律 第百二十一条第二項（確定後期高齢者支援金） — https://japanlaw.org/en/elderly-medical-care-act/art-121/par-2 · https://japanlaw.org/l/357AC0000000080/art-121/par-2 - 高齢者の医療の確保に関する法律 附則第十六条第一項 — https://japanlaw.org/en/elderly-medical-care-act/suppl-4221-35/art-16/par-1 · https://japanlaw.org/l/357AC0000000080/suppl-4221-35/art-16/par-1 - 高齢者の医療の確保に関する法律 附則第五十一条の七第一項 — https://japanlaw.org/en/elderly-medical-care-act/suppl-4241-62/art-51-7/par-1 · https://japanlaw.org/l/357AC0000000080/suppl-4241-62/art-51-7/par-1 - 高齢者の医療の確保に関する法律 附則第三十一条第三項 — https://japanlaw.org/en/elderly-medical-care-act/suppl-4271-31/art-31/par-3 · https://japanlaw.org/l/357AC0000000080/suppl-4271-31/art-31/par-3 --- ## Sources - e-Gov 法令検索, Digital Agency (デジタル庁) — 高齢者の医療の確保に関する法律 — the text in force from 2026-10-01 (https://laws.e-gov.go.jp/law/357AC0000000080/20261001_507AC0000000087), retrieved 2026-10-19 - Japanese Law Translation Database System, Ministry of Justice (法務省) — Act on Assurance of Medical Care for Elderly People — Ministry of Justice translation (https://www.japaneselawtranslation.go.jp/en/laws/view/4903/tb), retrieved 2026-10-19 - claude-sonnet-5-5 — Machine translation, batch elderly-medical-care-act-20261019T112331-004, translated 2026-10-19 - claude-sonnet-5-5 — Machine translation, batch elderly-medical-care-act-20261019T120156-001, translated 2026-10-19 - This site's parser, version 209 — 高齢者の医療の確保に関する法律 — structure, counts, cross-references and defined terms, computed 2026-10-19