About application of income for National Health Insurance premium calculation

The National Health Insurance premium is calculated based on the income of the head of the household and the insured belonging to the household.
For those who have not been able to confirm the income status of the previous year (*1) in determining the amount of the National Health Insurance premium for the current fiscal year, the Insurance and Pension Division of each ward may send a request for a claim for income related to the National Health Insurance (hereinafter referred to as the petition).
For those who have received this petition or who have been informed by the Insurance and Pension Division of each ward, please use the petition received or the Yokohama City Electronic Application and Notification System (see the bottom of this page) (* 2).

※1 In the case of insurance premiums for fiscal 2024, income status from January to December 2025
※2 Answers from the Yokohama City Electronic Application and Notification System will be accepted from January 6, 2025.

◇Those who file tax do not need to file a National Health Insurance income, regardless of income. (The contents of the tax declaration have priority over the contents of the income declaration.)
◇Please refer to the following for details.
About report of municipal tax, prefectural tax
◇The contents of the income statement will be used only in the Yokohama City National Health Insurance business.

You can respond for the past three years on your PC or smartphone.
Please note that the answer page will vary depending on the year.

　Before reception

　Before reception

　Before reception

Please contact Insurance and Pension Division National Health Insurance Section in your ward office.