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Explanation of terms related to insurance premiums

Last Updated September 10, 2024

What is the base gross income amount (what is the income amount used to calculate the premium “income amount”)?

Standard gross income amount = gross income amount, etc.-basic deduction of municipal tax (*)

※According to the total income amount of the previous year, it is as follows.

24 million yen or less ... ... ... 430,000 yen

More than 24 million yen and less than 24.5 million yen ... ... ... 290,000 yen

More than 24.5 million yen and less than 25 million yen ... ... ... 150,000 yen

More than 25 million yen ... ... ... 0 yen


The standard gross income amount is the amount of income that is the basis for calculating insurance premiums, and is the amount obtained by subtracting the basic deduction of municipal tax from the total income amount.
Gross income, etc. is the total income, etc. prescribed in Article 314-2, Paragraph 1 of the Local Tax Law, and is the sum of the following 1 to 18 income. It does not include Retirement income.

  1. Interest income
  2. Dividend income
  3. Real estate income
  4. Business income (operating income, etc.)
  5. Salary income
  6. Short-term transferable income for comprehensive taxation
  7. Long-term transferable income (Note 1)
  8. Temporary income (Note 1)
  9. Miscellaneous income (public pension income, etc.)
  10. Forest income
  11. Short-term transfer income on land and buildings subject to separate taxation (Note 2)
  12. Long-term transfer income on land and buildings subject to separate taxation (Note 2)
  13. (Selected tax return) Dividend income on listed stocks, etc.
  14. Transfer income, etc. related to general stock
  15. Transfer income, etc. related to listed stocks
  16. Miscellaneous income related to futures transactions
  17. Amount of interest applied to treaties and special interest applied
  18. Amounts of dividends applicable to treaties and special dividends applicable to treaties

(Note 1) Long-term transfer income and temporary income for the comprehensive tax shall be 1/2.
(Note 2) The amount after the special deduction is applied.
※Please be careful if you file a final tax return based on the transfer income of stocks, dividend income of listed stocks, etc.

What is the total amount of gross income, etc. (What is the amount of income used to determine the reduction of the premium “per capita rate”)?

The total amount of gross income, etc. is the amount of income used to determine the reduction of the per capita premium, and is the sum of the following 1-18 income amounts, which is the tax standard calculated by the method specified in the Local Tax Law, etc. It becomes. In addition, as shown below (Note 2) to (Note 4), some exceptions have been granted.

  1. Interest income
  2. Dividend income
  3. Real estate income
  4. Business income (operating income, etc.)
  5. Salary income
  6. Short-term transferable income for comprehensive taxation
  7. Long-term transferable income for comprehensive taxation
  8. Temporary income (Note 1)
  9. Miscellaneous income (public pension income, etc.)
  10. Forest income
  11. Short-term transfer income on land and buildings subject to separate taxation (Note 2)
  12. Long-term transfer income on land and buildings subject to separate taxation (Note 2)
  13. (Selected tax return) Dividend income on listed stocks, etc.
  14. Transfer income, etc. related to general stock
  15. Transfer income, etc. related to listed stocks
  16. Miscellaneous income related to futures transactions
  17. Amount of interest applied to treaties and special interest applied
  18. Amounts of dividends applicable to treaties and special dividends applicable to treaties

(Note 1) Long-term transfer income and temporary income for the comprehensive tax shall be 1/2.
(Note 2) The amount before the special deduction is applied.
(Note 3) The employer's (blue) blue full-time employee salary or business employee deduction paid to the full-time business employee is regarded as the employer's income, and (blue) there is no salary paid by the employer by the full-time business employee. Calculate assuming.
(Note 4) If a person aged 65 or older (as of January 1) has income from public pension, etc., the amount obtained by deducting 150,000 yen separately from the tax law's public pension is calculated as the amount of income related to public pension, etc.

Specified same household members are those who have transitioned from the National Health Insurance to the Medical System for the Elderly, and who continue to belong to the same household after becoming insured under the Medical System for the Elderly.
However, if the head of the household is changed or you are no longer a member of the household, you will no longer be a member of the specified same household.

Inquiries to this page

◆If you have any questions about the procedure, please contact your ward office Insurance and Pension Division.

Tsurumi Ward Insurance and Pension Division National Health Insurance Section

Telephone: 045-510-1807

Telephone: 045-510-1807

Fax: 045-510-1898

Email address: tr-hokennenkin@city.yokohama.jp

Kanagawa Ward Insurance and Pension Division National Health Insurance Section

Telephone: 045-411-7124

Telephone: 045-411-7124

Fax: 045-322-1979

Email address: kg-hokennenkin@city.yokohama.jp

Nishi Ward Insurance and Pension Division National Health Insurance Section

Telephone: 045-320-8425、045-320-8426

Telephone: 045-320-8425、045-320-8426

Fax: 045-322-2183

Email address: ni-hokennenkin@city.yokohama.jp

Naka Ward Insurance and Pension Division National Health Insurance Section

Telephone: 045-224-8315、045-224-8316

Telephone: 045-224-8315、045-224-8316

Fax: 045-224-8309

Email address: na-hknkquestion@city.yokohama.jp

Minami Ward Insurance and Pension Division National Health Insurance Section

Telephone: 045-341-1126

Telephone: 045-341-1126

Fax: 045-341-1131

Email address: mn-hokennenkin@city.yokohama.jp

Konan Ward Insurance and Pension Division National Health Insurance Section

Telephone: 045-847-8425

Telephone: 045-847-8425

Fax: 045-845-8413

Email address: kn-hokennenkin@city.yokohama.jp

Hodogaya Ward Insurance and Pension Division National Health Insurance Section

Telephone: 045-334-6335

Telephone: 045-334-6335

Fax: 045-334-6334

Email address: ho-hokennenkin@city.yokohama.jp

Asahi Ward Insurance and Pension Division National Health Insurance Section

Telephone: 045-954-6134

Telephone: 045-954-6134

Fax: 045-954-5784

Email address: as-hokennenkin@city.yokohama.jp

Isogo Ward Insurance and Pension Division National Health Insurance Section

Telephone: 045-750-2425

Telephone: 045-750-2425

Fax: 045-750-2545

Email address: is-hokennenkin@city.yokohama.jp

Kanazawa Ward Insurance and Pension Division National Health Insurance Section

Telephone: 045-788-7835、045-788-7836

Telephone: 045-788-7835、045-788-7836

Fax: 045-788-0328

Email address: kz-hokennenkin@city.yokohama.jp

Kohoku Ward Insurance and Pension Division National Health Insurance Section

Telephone: 045-540-2349

Telephone: 045-540-2349

Fax: 045-540-2355

Email address: ko-hokennenkin@city.yokohama.jp

Midori Ward Insurance and Pension Division National Health Insurance Section

Telephone: 045-930-2341

Telephone: 045-930-2341

Fax: 045-930-2347

Email address: md-hokennenkin@city.yokohama.jp

Aoba Ward Insurance and Pension Division National Health Insurance Section

Telephone: 045-978-2335

Telephone: 045-978-2335

Fax: 045-978-2417

Email address: ao-hokennenkin@city.yokohama.jp

Tsuzuki Ward   Insurance and Pension Division National Health Insurance Section

Telephone: 045-948-2334、045-948-2335

Telephone: 045-948-2334、045-948-2335

Fax: 045-948-2339

Email address: tz-hokennenkin@city.yokohama.jp

Totsuka Ward Insurance and Pension Division National Health Insurance Section

Telephone: 045-866-8449

Telephone: 045-866-8449

Fax: 045-871-5809

Email address: to-hokennenkin@city.yokohama.jp

Sakae Ward Insurance and Pension Division National Health Insurance Section

Telephone: 045-894-8425

Telephone: 045-894-8425

Fax: 045-895-0115

Email address: sa-hokennenkin@city.yokohama.jp

Izumi Ward Insurance and Pension Division National Health Insurance Section

Telephone: 045-800-2425、045-800-2426

Telephone: 045-800-2425、045-800-2426

Fax: 045-800-2512

Email address: iz-hokennenkin@city.yokohama.jp

Seya Ward Insurance and Pension Division National Health Insurance Section

Telephone: 045-367-5725、045-367-5726

Telephone: 045-367-5725、045-367-5726

Fax: 045-362-2420

Email address: se-hokennenkin@city.yokohama.jp

Insurance and Pension Division, Health and Social Welfare Bureau Life and Welfare Department

Telephone: 045-671-2422

Telephone: 045-671-2422

Fax: 045-664-0403 (For inquiries regarding procedures, please contact the ward office above)

Email address: kf-hokennenkin@city.yokohama.jp

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Page ID: 907-899-483

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