Minato City ▸ Raising children ▸ Minato City Medical Expense Subsidy for Children
● RAISING CHILDREN

Until age 18, the out-of-pocket cost of children's insured treatment is free

Minato City Medical Expense Subsidy for Children / Minato City
Minato City Medical Expense Subsidy for ChildrenMinato CityAges 0–18No income limit
Until the end of high school, children's insured treatment is free
Out-of-pocket cost for insured treatment¥0Until the first March 31 after turning 18
  • Show the medical certificate with your health insurance card at the counter
  • Non-insured treatment, room charge differences, vaccinations and similar are not covered
For care outside Tokyo, apply to the city afterwardKosodate Tokyo

For children living in Minato City from age 0 to the first March 31 after turning 18, Minato City fully subsidizes the out-of-pocket cost (usually 30% or 20%) when they receive insured treatment at a medical institution. There is no income limit.

If you show the "child medical certificate (Maru-Nyu / Maru-Ko / Maru-Sei)" together with your health insurance card at the counter of the medical institution, there is no out-of-pocket cost (= nothing to pay at the counter). If you receive care outside Tokyo or forget to show the certificate, pay the out-of-pocket cost first, then apply to the city later with the receipt to get a refund.

Insured treatment (consultations, medication, procedures, tests, hospital stays, surgery, etc.) is covered. Non-insured treatment (self-paid treatment), room charge differences, health checkups, vaccinations, medicine container fees and similar are not covered. Meal costs during hospital stays (the standard meal cost) are also covered, but you pay them first at the hospital counter and then apply to the city. Refund applications may no longer be accepted because of the statute of limitations, so complete the procedure early. Apply for the medical certificate within 15 days of the 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.

Notes

Covered: children living in Minato City until the first March 31 after turning 18.Scope: the out-of-pocket cost of insured treatment (usually 30% or 20%) is fully subsidized.Income limit: none.Medical certificates: Maru-Nyu (age 0 to before elementary school) / Maru-Ko (elementary to junior high school) / Maru-Sei(high-school age); show it together with your health insurance card at the counter of the medical institution.Not covered: non-insured treatment, room charge differences, health checkups, vaccinations, medicine container fees, medical certificate fees, etc.Hospital meal costs: Minato City includes them in the subsidy (many other municipalities exclude them, but Minato City is on the generous side).Care outside Tokyo or without showing the certificate: later, apply to the city for reimbursement with the receipt(the city's page does not give a number of days for the deadline, and states that "payment may not be possible because of the statute of limitations"). The subsidy is at the same level as in Tokyo, with no upper limit =full reimbursement of the out-of-pocket cost.Age covered: until the first March 31 after turning 18 (expanded to high school-age children and similar from April 2023,and still continuing). No income limit (continuing).

Official sources

Open the official page (Japanese)

Raising children in Minato City

The same program in other municipalities

← All programs in Minato City