# Changes to Japanese law on 1 August 2026

This is the Markdown twin of https://japanlaw.org/en/changes/2026-08-01. Every law, and how to address a provision: https://japanlaw.org/llms.txt. The same laws as MCP tools (no sign-in): https://japanlaw.org/mcp.

What changed on 1 August 2026 in 3 laws on this site: for each, the Act that amends it.

- Health Insurance Act (健康保険法) — https://japanlaw.org/en/health-insurance-act
  - Amended by Act Partially Amending the Health Insurance Act, etc. (Act No. 31 of 2026) (健康保険法等の一部を改正する法律)
    The Act, and every law here it amends: https://japanlaw.org/en/acts/508AC0000000031 (as Markdown: https://japanlaw.org/md/en/acts/508AC0000000031)
    Listed with the law's amendments: https://japanlaw.org/en/health-insurance-act/amendments; the text on e-Gov: https://laws.e-gov.go.jp/law/211AC0000000070/20260801_508AC0000000031
- National Health Insurance Act (国民健康保険法) — https://japanlaw.org/en/national-health-insurance-act
  - Amended by Act Partially Amending the Health Insurance Act, etc. (Act No. 31 of 2026) (健康保険法等の一部を改正する法律)
    The Act, and every law here it amends: https://japanlaw.org/en/acts/508AC0000000031 (as Markdown: https://japanlaw.org/md/en/acts/508AC0000000031)
    Listed with the law's amendments: https://japanlaw.org/en/national-health-insurance-act/amendments; the text on e-Gov: https://laws.e-gov.go.jp/law/333AC0000000192/20260801_508AC0000000031
- Act on Assurance of Medical Care for Elderly People (高齢者の医療の確保に関する法律) — https://japanlaw.org/en/elderly-medical-care-act
  - Amended by Act Partially Amending the Health Insurance Act, etc. (Act No. 31 of 2026) (健康保険法等の一部を改正する法律)
    The Act, and every law here it amends: https://japanlaw.org/en/acts/508AC0000000031 (as Markdown: https://japanlaw.org/md/en/acts/508AC0000000031)
    Listed with the law's amendments: https://japanlaw.org/en/elderly-medical-care-act/amendments; the text on e-Gov: https://laws.e-gov.go.jp/law/357AC0000000080/20260801_508AC0000000031

Every day: https://japanlaw.org/en/changes

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## Sources

- Amendments and their dates: e-Gov (Digital Agency) (3 records)
- English names of the laws: Japanese Law Translation, Ministry of Justice (3 records)
- English titles of the amending laws: Written for this site with AI