Frequently Asked Questions and Answers (National Health Insurance)

Have you completed the procedure to stop National Health Insurance (disqualification)?
If you have not completed the procedure, please stop National Health Insurance at the counter or by mail (disqualification).
[In the case of window]
Please come to the 28th floor of the Aoba Ward Office with the following documents.
・National Health Insurance Insured Card
・New Health Insurance Card

[In the case of mailing]
Please send the following required documents to Aoba Ward National Health Insurance Section.
<required documents>
・National Health Insurance Insured Card (original)
・Copy of new health insurance card
・registration form
Please download it from the website below and fill in required items.
About notification of loss of National Health Insurance qualification by mail
<Destination>
〒225-0024 3-1, Kao-cho, Aoba-ku, Yokohama, Addressing National Health Insurance Section, Insurance and Pension Division, Aoba Ward Office

By the end of July, when the expiration date expires, mail will be sent by registered mail addressed to the head of household.
If you do not receive it even after the expiration date approaches, your insurance card may have been returned to the ward office due to the expiration date of the post office. In that case, please contact Aoba Ward National Health Insurance Section directly.
Aoba Ward Insurance and Pension Division National Health Insurance Section
Phone: 045-978-2335
Fax: 045-978-2417
Email address: ao-hokennenkin@city.yokohama.jp

You can apply for a reissue of your National Health Insurance card at the counter or by mail.
[In the case of window]
Please come to the 28th floor of the Aoba Ward Office with the following documents.
・Identification documents of the person to be notified

[In the case of mailing]
Please send the following required documents to Aoba Ward National Health Insurance Section.
<required documents>
・Identification documents of the person to be notified
・Re-grant application
Please download it from the website below and fill in required items.
About procedure of National Health Insurance by mail
<Destination>
〒225-0024 3-1, Kao-cho, Aoba-ku, Yokohama, Addressing National Health Insurance Section, Insurance and Pension Division, Aoba Ward Office

If there is a National Health Insurance member in your household, a notice will be sent to the head of household.
In National Health Insurance, insurance premiums are calculated on a household basis, and it is stipulated by law that the head of household is responsible for paying it.

For more information on who is in the household, please refer to the insured person's name column of “Basic insurance premium calculation base” in the insurance premium decision notice (or insurance premium amount confirmation letter).

The National Health Insurance premium is calculated based on the income of the previous year (in the case of 2023, the year from January to December 2022) and the “per capita rate” paid by each insured person. The sum of the amount.
Please refer to the following Yokohama City homepage for details of insurance premiums such as insurance rates.
Premiums

Since both the income rate premium rate and the per capita rate have risen from last year, insurance premiums have risen accordingly.
In addition, the following reasons may be the main reasons for the increase in insurance premiums.
・The number of households in the household has increased.
・Due to a change in the number of people in the household, the amount of insurance premium reduced has been changed.
・In the case of operating income, etc., the income does not change, but the amount of income increased due to a decrease in expenses.
・By reaching the age of 40, a new amount of nursing care for National Health Insurance was newly generated.
・Premiums have not been calculated correctly because income has not been declared. (If there is a declaration, the income is subject to reduction of insurance premiums, but in cases where insurance premiums are not subject to reduction of insurance premiums due to undeclared declaration and insurance premiums have increased since last year.)

In this case, the National Health Insurance premium will be calculated correctly by submitting a “National Health Insurance Income Statement” to National Health Insurance Section Aoba Ward.
You can fill out the “National Health Insurance Income Statement” at the counter or contact us by e-mail, fax or telephone to your home.

Aoba Ward Insurance and Pension Division National Health Insurance Section
Phone: 045-978-2335
Fax: 045-978-2417
Email address: ao-hokennenkin@city.yokohama.jp

There is no discount.

The National Health Insurance premium can be calculated by entering the necessary information in the “Simplified Trial of Insurance Premium” on the following website.
Regarding premium rates for FY2023
The required information is the age of the member and the income information of the previous year, so please prepare a final tax return document and a withholding slip before making a trial calculation.