This Act comes into effect on the date of promulgation; provided, however, that the provisions set forth in the following items come into effect on the dates specified in those items:

Except as otherwise provided in these Supplementary Provisions, the provisions of the Corporation Tax Act as amended by the provisions of Article 2 (hereinafter referred to as the "New Corporation Tax Act") apply to corporation tax on income for a business year of a corporation (including an association or foundation without juridical personality prescribed in Article 2, item (viii) of the New Corporation Tax Act; the same applies hereinafter) beginning on or after April 1, 1989 and to corporation tax on liquidation income resulting from a dissolution (excluding a dissolution resulting from a merger; the same applies hereinafter) or merger on or after that date (including corporation tax on income for a business year in liquidation of a corporation subject to corporation tax on liquidation income and corporation tax payable as a result of a partial distribution of residual assets; the same applies hereinafter in this Article), and with regard to corporation tax on income for a business year of a corporation that began before that date and corporation tax on liquidation income resulting from a dissolution or merger before that date, the provisions then in force continue to govern.

With regard to the application of the provisions of Article 23, paragraphs (1) and (3) of the New Corporation Tax Act pertaining to the calculation of the amount of income for a business year of a corporation starting during the period from April 1, 1989 to March 31, 1990, the term "80 percent" in those provisions is deemed to be replaced with "90 percent".

The provisions of Article 26, paragraph (2) of the New Corporation Tax Act apply to the amount specified by Cabinet Order as the portion of the reduced amount by which the creditable amount of the foreign country's corporate tax prescribed in that paragraph has been reduced, in the case where, after the provisions of Article 69, paragraphs (1) through (3) of the New Corporation Tax Act were applied, the amount of the foreign country's corporate tax prescribed in Article 26, paragraph (2) of the New Corporation Tax Act has been reduced; and with regard to the reduced portion in the case where, after the provisions of Article 69, paragraphs (1) through (3) of the Corporation Tax Act prior to the amendment by Article 2 (hereinafter referred to as the "Former Corporation Tax Act") were applied, the amount of the foreign country's corporate tax prescribed in Article 26, paragraph (2) of the Former Corporation Tax Act has been reduced, the provisions then in force continue to govern.

With regard to the application of the provisions of the New Corporation Tax Act and other laws and regulations concerning corporation tax pertaining to the income for a business year starting during the period from April 1, 1989 to March 31, 1990 of an ordinary corporation prescribed in Article 2, item (ix) of the New Corporation Tax Act (hereinafter referred to as an "ordinary corporation") or an association or foundation without juridical personality prescribed in item (viii) of that Article, the term "37.5 percent" in Article 66, paragraph (1) and Article 143, paragraph (1) of the New Corporation Tax Act is deemed to be replaced with "40 percent", and the term "28 percent" in Article 66, paragraph (2) and Article 143, paragraph (2) of the New Corporation Tax Act is deemed to be replaced with "29 percent".

①With regard to the application of the provisions of Article 69, paragraphs (2) and (3) of the New Corporation Tax Act pertaining to the deduction from the amount of corporation tax for each business year of a domestic corporation starting during the period from April 1, 1989 to March 31, 1994, the term "preceding three years" in those provisions is deemed to be replaced with "preceding five years"; provided, however, that with regard to the application of those provisions in a business year starting during the period from April 1, 1993 to March 31, 1994, there is to be no limitation on a creditable amount under paragraph (2) of that Article and no creditable amount of the foreign country's corporate tax under paragraph (3) of that Article for a business year starting during the period from April 1, 1989 to March 31, 1990.

②The provisions of Article 69, paragraph (4) of the New Corporation Tax Act apply to the amount of dividends, etc. prescribed in that paragraph that a domestic corporation receives in each business year starting on or after April 1, 1989, and with regard to the amount of dividends, etc. prescribed in Article 69, paragraph (4) of the Former Corporation Tax Act that a domestic corporation received in each business year that started before that date, the provisions then in force continue to govern.

③The provisions of Article 69, paragraph (5) of the New Corporation Tax Act apply to the amount of the foreign country's corporate tax prescribed in paragraph (5) of that Article that has been reduced after the provisions of paragraphs (1) through (3) of that Article were applied, and with regard to the amount of the foreign country's corporate tax prescribed in paragraph (5) of that Article that has been reduced after the provisions of Article 69, paragraphs (1) through (3) of the Former Corporation Tax Act were applied, the provisions then in force continue to govern.

①With regard to the application of the provisions of Article 93, paragraph (2), item (ii) of the New Corporation Tax Act pertaining to the calculation of the amount of liquidation income from dissolution during the period from April 1, 1989 to March 31, 1990 of an ordinary corporation or a cooperative, etc. prescribed in Article 2, item (vii) of the New Corporation Tax Act, which is a domestic corporation, the term "80 percent" in that item is deemed to be replaced with "90 percent".

②With regard to the amount of the foreign country's corporate tax listed in Article 93, paragraph (2), item (iii) of the Former Corporation Tax Act that was refunded after the provisions of Article 69, paragraphs (1) through (3) of the Former Corporation Tax Act were applied, the provisions then in force continue to govern.

With regard to the application of the provisions of the New Corporation Tax Act and other laws and regulations concerning corporation tax pertaining to liquidation income in the case where an ordinary corporation which is a domestic corporation has dissolved or merged during the period from April 1, 1989 to March 31, 1990, the term "33 percent" in Article 99, paragraph (1) and Article 115, paragraph (1) of the New Corporation Tax Act is deemed to be replaced with "35.2 percent".

With regard to the application of the provisions of Article 102 of the New Corporation Tax Act concerning a business year in liquidation of an ordinary corporation which is a domestic corporation starting during the period from April 1, 1989 to March 31, 1990, the term "37.5 percent" in paragraph (1), item (iii) of that Article is deemed to be replaced with "40 percent".