● FERTILITY TREATMENT & EGG FREEZING

Koto City adds up to ¥50,000 on top of Tokyo's fertility treatment subsidy (for treatment started from April 2026, insured care is also covered)

Koto City Fertility Treatment Subsidy Program / Koto City

Koto City Fertility Treatment Subsidy ProgramKoto CityTokyo's subsidy approval firstCouples (including common-law)

Koto City adds to Tokyo's fertility treatment subsidy

On top of Tokyo's subsidyUp to ¥50,000The amount after deducting Tokyo's decided subsidy, etc.

For treatment started from April 2026, insured care is also covered

Based on the official sourceKosodate Tokyo

For couples who received an approval decision for the Tokyo Metropolitan Government's fertility treatment subsidy, Koto City adds up to ¥50,000 for treatment received on or after April 1, 2026. For people who started treatment on or after April 1, 2026, the covered amount is the cost of insured IVF and intracytoplasmic sperm injection, together with advanced medical care (senshin iryō) received with them, minus Tokyo's subsidy and benefits from other programs, etc. For people who started treatment by March 31, 2026 and continued from April, only advanced medical care costs are covered. Tokyo's subsidy is divided in proportion to the advanced medical care costs from April onward for the calculation. Conditions are that you are a couple (including common-law) from the start of treatment until you apply to the city, and that the applicant is registered as a resident of Koto City on the application date.

SIMULATOR

After Tokyo's subsidy, how much from the city?

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

Couples (including common-law) who received fertility treatment on or after April 1, 2026, received an approval decision for Tokyo's fertility treatment subsidy, and are registered as residents of Koto City on the application date

Notes

You must receive Tokyo's subsidy approval decision before applying to the city.You are not eligible if you receive the same subsidy from another municipality.For treatment started on or after April 1, 2026, Tokyo's approval decision notice arrives electronically. Print it and use it for the application.For treatment started on or after April 1, 2026, the documents required for the application are expected to change.For the application deadline, contact the city.You can apply at the Koto City Public Health Center, the health consultation center for your area, or by mail. Contact the Health Section, Health Prevention Division (03-3647-5906).

Official sources

Open the official page (Japanese)

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