From age 0 to high school age, the out-of-pocket share of medical costs is subsidized with no income limit
Medical Expense Subsidy for Infants (Maru-Nyu), Compulsory-Education Children (Maru-Ko), and High School-Age Children (Maru-Sei) / Tachikawa City
Medical Expense Subsidy for Infants (Maru-Nyu), Compulsory-Education Children (Maru-Ko), and High School-Age Children (Maru-Sei)Tachikawa CityAge 0 to high school ageNo income limit
Out-of-pocket medical costs subsidized up to high school age
What is subsidizedOut-of-pocket shareOut-of-pocket share of insured care (meal costs and similar are not covered)
- Until March 31 after turning 18
When a child living in Tachikawa City sees a doctor, the city subsidizes the out-of-pocket share under health insurance. Children before elementary school use the Maru-Nyu medical certificate, elementary and junior high school students the Maru-Ko certificate, and high school-age children (from April 1 after turning 15 to March 31 after turning 18) the Maru-Sei certificate. The income limit for Maru-Ko and Maru-Sei was removed on October 1, 2023. Meal costs during a hospital stay and items not covered by insurance, such as health checkups and vaccinations, are not covered. The medical certificate cannot be used at medical institutions outside Tokyo, so pay first and then apply.
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 with an address in Tachikawa City enrolled in health insurance, from age 0 to March 31 after turning 18 (excluding those receiving public assistance, living in an institution, and similar; for high school-age children, also excluding those receiving the medical expense subsidy for single-parent households or for people with disabilities, and those in foster placement)
Notes
The out-of-pocket share of insured care is subsidized. The income limit for Maru-Ko and Maru-Sei was removed from October 2023.High school-age children are eligible even if they are not in school.