I have already filed a tax return for the medical expenses tax deduction. How can I apply for high medical costs?

You can apply for high medical costs even after your tax return.
However, if there is an error in the contents of the final tax return already filed due to the return of high medical costs, it is necessary to file the final tax return again.
[Reference] If the declaration is incorrect (external site) (National Tax Agency website)

For the application of high medical costs, please refer to the following website.
○How to apply for high medical costs (National Health Insurance)
○How to apply for high medical costs (Medical System for Elderly Seniors)

※　The application form for high medical costs is sent approximately two to four months after the consultation month.
※　Once you apply, high medical costs will be automatically transferred after that.

Insurance and Pension Division National Health Insurance Section (26th floor, 2nd floor)
Telephone: 045-540-2351 FAX: 045-540-2355