Supplementary Provisions, Article 22Transitional Measures Concerning Employees' Pension Insurance Premiums for Part-Time Insureds

①The employer (excluding an employer that has already made the application under this paragraph; the same applies hereinafter in this Article) of an applicable place of business covered by employees' pension insurance (excluding an applicable place of business of the national government or a local government; hereinafter in this paragraph and paragraph (1) of the following Article referred to simply as an "applicable place of business") set forth in each of the following items may, if the employer applies to an implementing organization (limited to the Minister of Health, Labour and Welfare and the Promotion and Mutual Aid Corporation for Private Schools of Japan; the same applies in paragraph (5) and paragraph (1) of the following Article), as provided by order of the competent ministry, during the period up to the month preceding the month that includes the day on which two years have elapsed from the date specified in the relevant item (referred to as the "base date" in paragraphs (4) and (5)), increase, for the time being, notwithstanding Article 82, paragraph (1) of the Employees' Pension Insurance Act, the ratio of the burden to be borne by the employer for the insurance premiums prescribed in Article 81, paragraph (1) of that Act pertaining to part-time insureds employed at the applicable place of business (excluding those pertaining to the standard bonus amount decided under Article 24-4, paragraph (1) of that Act and those not paid by the due date designated under Article 86, paragraph (1) of that Act; hereinafter in this paragraph and paragraph (7) referred to as "employees' pension insurance premiums for part-time insureds") to the ratio obtained by adding 50/100 to the ratio specified in each item of Appended Table 2 of the Supplementary Provisions corresponding to the category of period set forth in that item (hereinafter in this Article, paragraph (1) of the following Article and Appended Table 2 of the Supplementary Provisions referred to as the "increased burden ratio"). In this case, of the amount of employees' pension insurance premiums for part-time insureds, the amount obtained by multiplying the increased burden ratio by the amount equivalent to the amount obtained by multiplying the standard monthly remuneration for part-time insureds by the insurance premium rate prescribed in Article 81, paragraph (4) of the Employees' Pension Insurance Act (referred to as the "premium adjustment amount" in paragraphs (4) and (11)) is deemed not to have required collection.

③The application under paragraph (1) must, for an employer that is able to make the application under Article 24, paragraph (1) of the Supplementary Provisions, be made at the same time as the application under that paragraph.

④Where the premium adjustment amount for each applicable place of business prescribed in paragraph (1) is zero (excluding the case where the month in which the premium adjustment amount is zero falls within a period on or after the month which contains the day on which two years have elapsed from the base date), the application of the provisions of that paragraph to that applicable place of business is to be suspended for the period on or after the month in which the premium adjustment amount is zero.

⑤An employer may, during the period from the month in which the application of the provisions of paragraph (1) was suspended pursuant to the provisions of the preceding paragraph until the month preceding the month that includes the day on which two years have elapsed from the base date, apply to an implementing organization, as provided by order of the competent ministry, for release of the suspension under the provisions of the preceding paragraph.

⑥The application for release under the preceding paragraph must, for an employer that is able to make the application for release under Article 24, paragraph (5) of the Supplementary Provisions, be made at the same time as the application for release under that paragraph.

⑦The provisions of paragraph (1) apply to employees' pension insurance premiums for part-time insureds for each of the 36 months in total counted from the month that includes the day on which the application under that paragraph was made; provided, however, that each month from the month in which the application of the provisions of paragraph (1) was suspended pursuant to the provisions of paragraph (4) until the month preceding the month that includes the day on which the application for release under paragraph (5) was made is not counted.

⑧The government may, taking into consideration trends in the minimum wage (meaning the minimum wage under the provisions of the Minimum Wage Act (Act No. 137 of 1959); the same applies in Article 24, paragraph (8) of the Supplementary Provisions) and other factors, by Cabinet Order, revise the grade classification of the standard monthly remuneration by adding a further grade above the highest grade of the standard monthly remuneration grades prescribed in Article 20, paragraph (1) of the Employees' Pension Insurance Act set forth in the left-hand column of the table in each item of Appended Table 2 of the Supplementary Provisions (referred to simply as "standard monthly remuneration grades" in paragraph (12), paragraph (3) of the following Article and Appended Table 2 of the Supplementary Provisions), and revise the increased burden ratio specified in the right-hand column of that table (with 25/100 as the upper limit). In this case, the phrase "through grade 6" in paragraph (12) is deemed to be replaced with "through the grade specified by Cabinet Order", and other matters necessary for the application of the provisions of this paragraph are specified by Cabinet Order.

⑨With regard to the increased burden ratio specified in the right-hand column of the table in each item of Appended Table 2 of the Supplementary Provisions in the case where the employer of a place of business employing a member of a surviving employees' pension Fund prescribed in Article 3, item (xi) of the Supplementary Provisions of the 2013 Amendment Act (meaning a member prescribed in Article 122 of the Employees' Pension Insurance Act before the amendment by the provisions of Article 1 of the 2013 Amendment Act, which is to remain in force pursuant to the provisions of Article 5, paragraph (1) of the Supplementary Provisions of the 2013 Amendment Act) makes the application under paragraph (1), the ratio is specified by Cabinet Order.

⑩The administrative functions pertaining to the authority to accept applications of an implementing organization under paragraphs (1) and (5) are to be performed by the Japan Pension Service. In this case, in Article 23, paragraph (3) of the Japan Pension Organization Act, the phrase "Employees' Pension Insurance Act" is deemed to be replaced with "Employees' Pension Insurance Act or the Act Partially Amending the National Pension Act, etc., and Other Matters, to Strengthen the Functions of the Pension System in Light of Socioeconomic Changes (Act No. 74 of 2025)"; in Article 26, paragraph (2) of that Act, the phrase "Employees' Pension Insurance Act" is deemed to be replaced with "Employees' Pension Insurance Act or the Act Partially Amending the National Pension Act, etc., and Other Matters, to Strengthen the Functions of the Pension System in Light of Socioeconomic Changes"; in Article 27, paragraph (1), item (i) of that Act, the phrase "administrative functions related to the authority prescribed in Article 100-4, paragraph (1) of the Employees' Pension Insurance Act, administrative functions prescribed in Article 100-10, paragraph (1) of that Act" is deemed to be replaced with "administrative functions related to the authority prescribed in Article 100-4, paragraph (1) of the Employees' Pension Insurance Act and administrative functions related to the authority prescribed in Article 22, paragraph (10) of the Supplementary Provisions of the Act Partially Amending the National Pension Act, etc., and Other Matters, to Strengthen the Functions of the Pension System in Light of Socioeconomic Changes, administrative functions prescribed in Article 100-10, paragraph (1) of the Employees' Pension Insurance Act"; and in Article 48, paragraph (1) of that Act, the phrase "Employees' Pension Insurance Act" is deemed to be replaced with "Employees' Pension Insurance Act or the Act Partially Amending the National Pension Act, etc., and Other Matters, to Strengthen the Functions of the Pension System in Light of Socioeconomic Changes".

⑪Beyond what is provided for in each of the preceding paragraphs, a refund of an amount equivalent to the premium adjustment amount deemed under the provisions of paragraph (1) not to have been required to be collected, and other necessary matters, are specified by Cabinet Order.

⑫In this Article, "part-time insured" means an insured covered by employees' pension insurance who is a specified under-three-quarters part-time worker prescribed in Article 17, paragraph (1) of the Supplementary Provisions of the 2012 Pension Function Strengthening Act and is under 70 years of age (limited to those who fall under grade 1 through grade 6 of the standard monthly remuneration grades).