● RAISING CHILDREN

Until the end of the fiscal year the child turns 18, the full out-of-pocket medical cost is covered (no income limit)

Medical Expense Subsidy for Children (Maru-Nyu / Maru-Ko / Maru-Sei) / Mitaka City
Medical Expense Subsidy for Children (Maru-Nyu / Maru-Ko / Maru-Sei)Mitaka CityAge 0 to 18No income limit
Until the end of the fiscal year the child turns 18, medical costs are ¥0
Out-of-pocket share of insured medical costs¥0Both outpatient and inpatient care fully covered
  • Meal costs during a hospital stay and costs not covered by insurance are excluded
Apply by the month after the birth or moving inKosodate Tokyo

When a child up to the first March 31 after turning 18 sees a doctor, the city covers the full out-of-pocket share of medical costs covered by health insurance, for both outpatient and inpatient care. There is no income limit. Preschool children receive a Maru-Nyu medical certificate, elementary and junior high school students a Maru-Ko certificate, and children of high school age a Maru-Sei certificate (whether or not they attend high school). At medical institutions in Tokyo, show your My Number health insurance card or similar and the medical certificate at the counter. Costs not covered by health insurance and meal costs during a hospital stay are excluded. If you apply by the month after the date of birth or moving in, the subsidy applies from the date of birth or moving in.

Nationality and residence status

The official page (checked in October 2026) sets no condition on nationality or residence status that we found. Eligibility follows the official conditions, not the language of this page; many programs require resident registration in the municipality.

Who is eligible

Children enrolled in public medical insurance and living in Mitaka City, up to the first March 31 after turning 18

Notes

There is no income limit.
← All programs in Mitaka City