Act on the Collection, etc. of Insurance Premiums of Labor Insurance
労働保険の保険料の徴収等に関する法律
Chapter III Procedures for Payment of Labor Insurance Premiums (Articles 12-2 to 18)
The law as Act Partially Amending the Industrial Accident Compensation Insurance Act, etc. (Act No. 60 of 2026) leaves it, with the words it changes marked.
The main text is read a page at a time: a chapter to a page, and a long chapter in runs of articles. The whole main text, and the supplementary provisions and appended tables this amendment changes. Those it leaves untouched are on the page for the text in force.
Article 12-2第十二条の二
Special Provisions for Industrial Accident Insurance Rate(労災保険率の特例)
Article 12-2, paragraph (1)
In the case under paragraph (3) of the preceding Article, if a business operator employing the number of workers specified by Order of the Ministry of Health, Labour and Welfare or less has taken the measures specified by Order of the Ministry of Health, Labour and Welfare to secure safety or health of the workers employed for the business during any insurance year of three consecutive insurance years, and the business operator submits a written application stating the intention to apply for the application of the provision of this Article in respect of the industrial accident insurance rate pertaining to the business and other matters specified by Order of the Ministry of Health, Labour and Welfare within six months from the first day of the insurance year following any insurance year during which the measures were taken, then the provisions of the same paragraph apply to the industrial accident insurance rate prescribed in the same paragraph for the insurance year two years following the last insurance year of the consecutive three insurance years, by replacing the term "forty one-hundredth (40/100)" in the same paragraph with "forty-five one-hundredth (45/100)."
Amount of Class I Special Enrollment Insurance Premiums(第一種特別加入保険料の額)
Article 13, paragraph (1)
The amount of the Class I special enrollment insurance premiums is to be the amount obtained by multiplying the total of the amounts specified by Order of the Ministry of Health, Labour and Welfare for the persons deemed as entitled to receive the insurance benefit pursuant to the provision of Article 34, paragraph (1) of the Industrial Accident Insurance Act, by taking into consideration of the basic daily benefit amount set forth in item (iii) of the same paragraph and other circumstances, by the rate obtained by reducing from the rate identical to the industrial accident insurance rate prescribed by Article 12, paragraph (2) (if the rate has been increased or decreased pursuant to the same Article, paragraph (3), the increased or decreased rate) for the businesses pertaining to those persons, the rate prescribed by the Minister of Heath, Labour and Welfare by taking into consideration of the amount of the costs required for the benefit for second medical examination, etc. during the past three years in respect of all businesses to which the Industrial Accident Insurance Act is applied (hereinafter referred to as the "Class I special enrollment insurance premium rate").
Amount of Class II Special Enrollment Insurance Premiums(第二種特別加入保険料の額)
Article 14, paragraph (1)
The amount of the Class II special enrollment insurance premiums is to be the amount obtained by multiplying the total of the amounts specified by Order of the Ministry of Health, Labour and Welfare for the persons deemed as entitled to be covered by the industrial accident insurance pursuant to the provision of Article 35, paragraph (1) of the Industrial Accident Insurance Act (referred to as the "insured person of Class II special enrollment" in the following paragraph), by taking into consideration of the basic daily benefit amount set forth in paragraph (1), item (vi) of the same Article and other circumstances, by the rate prescribed by the Minister of Health, Labour and Welfare by taking into consideration of the injury rate pertaining to occupational accidents, multiple-job-related accidents and commuting accidents for the businesses of the same type as or similar type to those set forth in Article 33, item (iii) of the Industrial Accident Insurance Act or the businesses conducting the works of the same type as or similar type to those set forth in item (v) of that Article (in case of the persons specified by Order of the Ministry of Health, Labour and Welfare set forth in Article 35, paragraph (1) of the Industrial Accident Insurance Act, the injury rate pertaining to occupational accidents and multiple-job-related accidents for the business of the same or similar type or the business conducting those works of the same or similar type), the type and content of the services implemented as the services for promoting re-integration into society and other circumstances (hereinafter referred to as the "Class II special enrollment insurance premium rate").
The Class II special enrollment insurance premium rate must be of the value that allows the maintenance of balanced finances pertaining to the industrial accident insurance services into the future, in light of the necessary costs of the payment of insurance proceeds pertaining to the insured person of Class II special enrollment and of the services for promoting re-integration into society.
Amount of Class III Special Enrollment Insurance Premiums(第三種特別加入保険料の額)
Article 14-2, paragraph (1)
The amount of the Class III special enrollment insurance premiums is to be the amount obtained by multiplying the total of the amounts specified by Order of the Ministry of Health, Labour and Welfare for the insured persons of Class III special enrollment, by taking into consideration of the basic daily benefit amount set forth in Article 34, paragraph (1), item (iii) of the Industrial Accident Insurance Act as applied mutatis mutandis pursuant to Article 36, paragraph (1), item (ii) of that Act and other circumstances, by the rate prescribed by the Minister of Health, Labour and Welfare by taking into consideration of the injury rate pertaining to occupational accidents, multiple-job-related accidents and commuting accidents for the businesses of the same type as or similar type to those in which the persons listed in Article 33, item (vi) or (vii) of the Industrial Accident Insurance Act are engaged and which are operated within the jurisdiction where this Act is effective, the type and content of the services implemented as the services for promoting re-integration into society and other circumstances (hereinafter referred to as the "Class III special enrollment insurance premium rate").
The provisions of the preceding Article, paragraph (2) apply mutatis mutandis to the Class III special enrollment insurance premium rate. In this case, the term "the insured person of Class II special enrollment" in the same paragraph is deemed to be replaced with "the insured person of Class III special enrollment."
Business operators must pay the following labor insurance premiums each insurance year, with a written declaration stating the amount of the labor insurance premiums and other matters specified by Order of the Ministry of Health, Labour and Welfare, within 40 days from June 1 of the insurance year (in the case of the business in respect of which the insurance relation is established in the midst of an insurance year, within 50 days from the day on which the insurance relation is established (for Class I special enrollment insurance premiums pertaining to businesses which have obtained the approval set forth in Article 34, paragraph (1) of the Industrial Accident Insurance Act in the midst of an insurance year and Class III special enrollment insurance premiums pertaining to businesses which have obtained the approval set forth in Article 36, paragraph (1) of the Industrial Accident Insurance Act in the midst of an insurance year, the day on which the approval is obtained, respectively)):
for businesses other than the businesses listed in the following item and in item (iii), the general insurance premiums calculated by multiplying the prospective amount of the total wages (if the amount includes a fraction less than one thousand yen, the fraction is rounded down; the same applies hereinafter) pertaining to all workers employed during the insurance year (in the case of establishment of the insurance relation in the midst of an insurance year, all workers employed during the period from the day on which the insurance relation is established to the end of the insurance year) (the amount of total wages pertaining to all workers employed during the immediately preceding insurance year, for the case prescribed as such in Order of the Ministry of Health, Labour and Welfare), by the insurance premium rate pertaining to the general insurance premiums pursuant to the provisions of Article 12 (hereinafter referred to as the "general insurance premium rate") for the businesses
for businesses pertaining to the approval set forth in Article 34, paragraph (1) of the Industrial Accident Insurance Act or businesses pertaining to the approval set forth in Article 36, paragraph (1) of the Industrial Accident Insurance Act, the following labor insurance premiums:
for businesses pertaining to the approval prescribed by Article 34, paragraph (1) of the Industrial Accident Insurance Act (excluding the businesses prescribed in sub-item (c)), the general insurance premiums calculated pursuant to the rule in the preceding item in respect of the prospective amount of total wages pertaining to all workers employed for the business, and Class I special enrollment insurance premiums calculated by multiplying the prospective amount of the total of the amounts specified by Order of the Ministry of Health, Labour and Welfare set forth in Article 13 for the insurance year (if the amount includes a fraction less than one thousand yen, the fraction is rounded down; the same applies hereinafter) (the total of the amounts specified by Order of the Ministry of Health, Labour and Welfare set forth in the same Article for the immediately preceding insurance year, in the case prescribed as such in Order of the Ministry of Health, Labour and Welfare; the same applies in sub-item (c)), by the Class I special enrollment insurance rate for the business;
for businesses pertaining to the approval prescribed by Article 36, paragraph (1) of the Industrial Accident Insurance Act (excluding the businesses prescribed in sub-item (c)), the general insurance premiums calculated pursuant to the rule in the preceding item in respect of the prospective amount of total wages pertaining to all workers employed for the business, and Class III special enrollment insurance premiums calculated by multiplying the prospective amount of the total of the amounts specified by Order of the Ministry of Health, Labour and Welfare set forth in paragraph (1) of the preceding Article for the insurance year (if the amount includes a fraction less than one thousand yen, the fraction is rounded down; the same applies hereinafter) (the total of the amounts specified by Order of the Ministry of Health, Labour and Welfare set forth in the same paragraph for the immediately preceding insurance year, in the case prescribed as such in Order of the Ministry of Health, Labour and Welfare; the same applies in sub-item (c)), by the Class III special enrollment insurance rate for the business;
for businesses pertaining to the approval prescribed by Article 34, paragraph (1) of the Industrial Accident Insurance Act and the approval prescribed by Article 36, paragraph (1) of the Industrial Accident Insurance Act, the general insurance premiums calculated pursuant to the rule in the preceding item in respect of the prospective amount of total wages pertaining to all workers employed for the business, and Class I special enrollment insurance premiums calculated pursuant to the rule in the provision of sub-item (a) in respect of the prospective amount of the total of the amounts specified by Order of the Ministry of Health, Labour and Welfare set forth in Article 13 for the insurance year and Class III special enrollment insurance premiums calculated pursuant to the rule in the provision of sub-item (b) in respect of the prospective amount of the total of the amounts specified by Order of the Ministry of Health, Labour and Welfare set forth in paragraph (1) of the preceding Article for the insurance year;
for businesses pertaining to the approval prescribed by Article 35, paragraph (1) of the Industrial Accident Insurance Act, Class II special enrollment insurance premiums calculated by multiplying the prospective amount of the total of the amounts specified by Order of the Ministry of Health, Labour and Welfare set forth in Article 14, paragraph (1) for the insurance year (if the amount includes a fraction less than one thousand yen, the fraction is rounded down; the same applies hereinafter) (the total of the amounts specified by Order of the Ministry of Health, Labour and Welfare set forth in the same paragraph for the immediately preceding insurance year, in the case prescribed as such in Order of the Ministry of Health, Labour and Welfare), by the Class II special enrollment insurance rate for the business.
For businesses with a definite term, notwithstanding the provision of the preceding paragraph, the business operator must pay the following labor insurance premiums, together with a written declaration stating the amount of the labor insurance premiums and other matters specified by Order of the Ministry of Health, Labour and Welfare, within 20 days from the day on which the insurance relation is established (in the case of Class I special enrollment insurance premiums pertaining to a business for which the approval set forth in Article 34, paragraph (1) of the Industrial Accident Insurance Act is obtained on and after the day following the day on which the insurance relation is established, the day on which the approval is obtained).
for businesses prescribed in item (i) of the preceding paragraph, the general insurance premiums calculated by multiplying the prospective amount of total wages pertaining to all workers employed for the business during the whole period pertaining to the insurance relation by the general insurance premium rate for the business;
for businesses prescribed in item (ii), sub-item (a) of the preceding paragraph, the general insurance premiums calculated pursuant to the rule in the provision of the preceding item in respect of the prospective amount of total wages pertaining to all workers employed for the business, and Class I special enrollment insurance premiums calculated by multiplying the prospective amount of the total of the amounts specified by Order of the Ministry of Health, Labour and Welfare set forth in Article 13 for the whole period pertaining to the approval set forth in Article 34, paragraph (1) of the Industrial Accident Insurance Act by the Class I special enrollment insurance premium rate for the business; and
for businesses prescribed in item (iii) of the preceding paragraph, Class II special enrollment insurance premiums calculated by multiplying the prospective amount of the total of the amounts specified by Order of the Ministry of Health, Labour and Welfare set forth in Article 14, paragraph (1) for the whole period pertaining to the insurance relation by the Class II special enrollment insurance rate for the business.
If the business operator fails to submit the written declaration set forth in the preceding two paragraphs, or the government finds that there are errors in the entries in the written declaration, the government determines the amount of the labor insurance premiums and give notice thereof to the business operator.
A business operator who has received the notice pursuant to the provisions of the preceding paragraph, if the amount of the labor insurance premiums paid is in short of the labor insurance premiums determined by the government, must pay for the shortfall, or if no labor insurance premiums have been paid, must pay the labor insurance premiums determined by the government, within 15 days from the day on which the notice is received.
Payment of Increased Estimated Insurance Premiums(増加概算保険料の納付)
Article 16, paragraph (1)
If the prospective amount of the total amount of wages prescribed by paragraph (1) or (2) of the preceding Article, the prospective amount of the total of the amounts specified by Order of the Ministry of Health, Labour and Welfare set forth in Article 13, the prospective amount of the total of the amounts specified by Order of the Ministry of Health, Labour and Welfare set forth in Article 14, paragraph (1), or the prospective amount of the total of the amounts specified by Order of the Ministry of Health, Labour and Welfare set forth in Article 14-2, paragraph (1), increases and the requirements specified by Order of the Ministry of Health, Labour and Welfare are met, the employer must pay the difference between the amount of the labor insurance premiums based on the increased prospective amount and the amount of the labor insurance premiums already paid, with the written declaration stating the amount of the difference and other matters specified by Order of the Ministry of Health, Labour and Welfare, within 30 days from that date.
Additional Collection of Estimated Insurance Premiums(概算保険料の追加徴収)
Article 17, paragraph (1)
If the government increases the general insurance premium rate, the Class I special enrollment insurance premium rate, the Class II special enrollment insurance premium rate, or the Class III special enrollment insurance premium rate, it additionally collects the relevant labor insurance premiums.
When the government additionally collects labor insurance premiums pursuant to the provisions of the preceding paragraph, it must notify the business operators of the amount of the labor insurance premiums payable by each business operator by designating the payment due date pursuant to the provisions of Order of the Ministry of Health, Labour and Welfare.
Delayed Payment of Estimated Insurance Premiums(概算保険料の延納)
Article 18, paragraph (1)
Pursuant to the provisions of Order of the Ministry of Health, Labour and Welfare, the government, at the request of the employer, may allow delayed payment of the labor insurance premiums payable by the employer pursuant to the provisions of Article 15 through the preceding Article.