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 for in these Supplementary Provisions, the provisions of the Corporation Tax Act as amended by Article 2 (hereinafter referred to as the "New Corporation Tax Act") apply to corporation tax on income for business years 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, 2012 and to corporation tax on consolidated income for consolidated business years of a consolidated corporation beginning on or after that date, and the provisions then in force continue to govern corporation tax on income for business years of a corporation that began before that date and corporation tax on consolidated income for consolidated business years of a consolidated corporation that began before that date.

The provisions of Article 23, paragraph (7) and Article 23-2, paragraphs (3) and (4) of the New Corporation Tax Act apply to corporation tax for which the due date for filing the final return, etc. (meaning a return under Article 71, paragraph (1) of the New Corporation Tax Act which states the matters listed in the items of Article 72, paragraph (1) of the New Corporation Tax Act, and a return under Article 74, paragraph (1) of the New Corporation Tax Act; the same applies hereinafter up to Article 17 of the Supplementary Provisions) arrives on or after the Effective Date, and the provisions then in force continue to govern corporation tax for which the due date for filing the final return, etc. arrived before the Effective Date.

The provisions of Article 37, paragraphs (9) and (10) of the New Corporation Tax Act apply to corporation tax for which the due date for filing the final return, etc. arrives on or after the Effective Date, and the provisions then in force continue to govern corporation tax for which the due date for filing the final return, etc. arrived before the Effective Date.

①With regard to the calculation of the amount of income for each business year of a corporation beginning during the period from April 1, 2012 to March 31, 2015 (referred to as a "business year under the transitional measures" in the following paragraph and paragraph (3)), the provisions of Article 52 of the Corporation Tax Act prior to the amendment by Article 2 (hereinafter referred to as the "Former Corporation Tax Act") remain in force. In this case, the phrase "amount calculated as specified by Cabinet Order" in paragraphs (1) and (2) of that Article is deemed to be replaced with "amount equivalent to three-quarters of the amount calculated as specified by Cabinet Order" for business years beginning during the period from April 1, 2012 to March 31, 2013, with "amount equivalent to two-quarters of the amount calculated as specified by Cabinet Order" for business years beginning during the period from April 1, 2013 to March 31, 2014, and with "amount equivalent to one-quarter of the amount calculated as specified by Cabinet Order" for business years beginning during the period from April 1, 2014 to March 31, 2015.

②With regard to individually assessed monetary claims prescribed in Article 52, paragraph (1) of the New Corporation Tax Act, in the case where a corporation is subject to the application of the provisions of that paragraph or paragraph (5) of that Article with respect to those individually assessed monetary claims in a business year under the transitional measures, the provisions of Article 52, paragraphs (1) and (5) of the Former Corporation Tax Act, which remain in force pursuant to the provisions of the preceding paragraph, do not apply to those individually assessed monetary claims in the business year under the transitional measures in which it is subject to that application.

③In a business year under the transitional measures in which a corporation is subject to the application of the provisions of Article 52, paragraph (2) or (6) of the New Corporation Tax Act, the provisions of Article 52, paragraphs (2) and (6) of the Former Corporation Tax Act, which remain in force pursuant to the provisions of paragraph (1), do not apply.

④The amount of the reserve for bad debts prescribed in the provisions of Article 52, paragraph (1) or (2) of the Former Corporation Tax Act, which remain in force pursuant to the provisions of paragraph (1), that was included in the amount of deductible expenses, when calculating the amount of income for the previous business year of the business year of a corporation first beginning on or after April 1, 2015, pursuant to those provisions, is included in the amount of gross profit, when calculating the amount of income for that business year first beginning on or after that date.

⑤The amount of the reserve for bad debts that a merging corporation, etc. prescribed in Article 52, paragraph (8) of the Former Corporation Tax Act, which remains in force pursuant to the provisions of paragraph (1), has taken over pursuant to the provisions of that paragraph, or the amount of the interim individual reserve for bad debts prescribed in paragraph (5) of that Article or the amount of the interim collective reserve for bad debts prescribed in paragraph (6) of that Article, in a business year of the merging corporation, etc. beginning on or after April 1, 2015, is included in the amount of gross profit, when calculating the amount of income for that business year.

⑥In the case referred to in paragraph (1), with regard to the application of the provisions of Article 55-3, paragraph (10) and Article 58, paragraph (14) of the Act on Special Measures Concerning Taxation as amended by Article 10 of the Act Partially Amending the Income Tax Act, etc. (Act No. 10 of 2014), the phrase "Corporation Tax Act" in these provisions is deemed to be replaced with "Corporation Tax Act prior to the amendment by Article 2 of the Act Partially Amending the Income Tax Act, etc. to Build a Tax System Responding to Changes in the Economic and Social Structure (Act No. 114 of 2011), which remains in force pursuant to the provisions of Article 13, paragraph (1) of the Supplementary Provisions of that Act".

The provisions of Article 57 (excluding the proviso to paragraph (1), paragraph (5) and paragraph (11)) and Article 58 (excluding the proviso to paragraph (1), paragraph (3) and paragraph (6)) of the New Corporation Tax Act apply to a net operating loss incurred in a business year of a corporation that ended on or after April 1, 2008, and the provisions then in force continue to govern a net operating loss incurred in a business year of a corporation that ended before that date.

The provisions of Article 59, paragraphs (4) and (5) of the New Corporation Tax Act apply to corporation tax for which the due date for filing the final return, etc. arrives on or after the Effective Date, and the provisions then in force continue to govern corporation tax for which the due date for filing the final return, etc. arrived before the Effective Date.