This Act comes into effect on October 1, 1987; provided, however, that the provisions set forth in the following items come into effect on the dates specified respectively in those items:

Except as otherwise provided in these Supplementary Provisions, the provisions of the Income Tax Act as amended by the provisions of Article 2 (hereinafter referred to as "the new Income Tax Act") apply to income tax for 1987 and subsequent years, and the provisions then in force continue to govern income tax for 1986 and prior years.

①The provisions of Article 5, paragraph (3), Article 7, paragraph (1), item (iv), Article 174, and Article 175 of the new Income Tax Act apply to interest and similar income or compensation for periodic deposits, finance charges, profits, or margin profits (hereinafter referred to as "compensation for periodic deposits or similar amounts" in this paragraph and paragraph (3)) set forth in Article 174, item (i) or items (iii) through (viii) of the new Income Tax Act that a Domestic Corporation is to be paid on or after April 1, 1988 (or, for ordinary deposits and other deposits specified by Cabinet Order as being similar thereto (referred to as "ordinary deposits and similar deposits" in the following paragraph), the date specified by Cabinet Order; the same applies hereinafter in this paragraph), and the provisions then in force continue to govern such interest and similar income or compensation for periodic deposits or similar amounts to be paid before April 1 of that year.

②Notwithstanding the provisions of the preceding paragraph, the provisions then in force continue to govern the portion of interest and similar income set forth in Article 174, item (i) of the new Income Tax Act (excluding those pertaining to ordinary deposits and similar deposits; hereinafter referred to as "interest and similar income" in this paragraph) that a Domestic Corporation is to be paid on or after April 1, 1988 and that corresponds to a calculation period for interest and similar income that includes that date, which is equivalent to the amount calculated pursuant to Cabinet Order as the amount corresponding to the period from the first day of that calculation period for interest and similar income until March 31 of that year.

③Notwithstanding the provisions of paragraph (1), the provisions then in force continue to govern the portion of compensation for periodic deposits or similar amounts that a Domestic Corporation is to be paid on or after April 1, 1988 and that correspond to a period specified by Cabinet Order as a calculation period for compensation for periodic deposits or similar amounts that includes that date, which is equivalent to the amount calculated pursuant to Cabinet Order as the amount corresponding to the period from the first day of that period until March 31 of that year.

①The provisions of Article 5, paragraph (4), Article 7, paragraph (1), item (v), Article 178, and Article 179 of the new Income Tax Act apply to interest and similar income set forth in Article 161, item (iv) of the new Income Tax Act or compensation for periodic deposits, finance charges, profits, or margin profits set forth in item (xi) of that Article (hereinafter referred to as "compensation for periodic deposits or similar amounts" in this paragraph and paragraph (3)) that a Foreign Corporation is to be paid on or after April 1, 1988 (or, for ordinary deposits and other deposits specified by Cabinet Order as being similar thereto (referred to as "ordinary deposits and similar deposits" in the following paragraph), the date specified by Cabinet Order; the same applies hereinafter in this paragraph), and the provisions then in force continue to govern such interest and similar income or compensation for periodic deposits or similar amounts to be paid before April 1 of that year.

②The provisions of paragraph (2) of the preceding Article apply mutatis mutandis to interest and similar income set forth in Article 161, item (iv) of the new Income Tax Act (excluding those pertaining to ordinary deposits and similar deposits) that a Foreign Corporation is to be paid on or after April 1, 1988 and that corresponds to a calculation period for interest and similar income that includes that date.

③The provisions of paragraph (3) of the preceding Article apply mutatis mutandis to compensation for periodic deposits or similar amounts that a Foreign Corporation is to be paid on or after April 1, 1988 and that correspond to a period specified by Cabinet Order as a calculation period that includes that date.

The provisions of Article 9, paragraph (1), item (xi) and paragraph (2), item (iii) of the new Income Tax Act apply to income from the transfer of Securities made on or after October 1, 1987, and the provisions then in force continue to govern income from the transfer of Securities made before that date.

①The provisions of Article 9-2 of the new Income Tax Act apply to postal savings deposited on or after April 1, 1988 by an individual who has a domicile in Japan and who is an elderly person or similar person prescribed in Article 9-2, paragraph (1) of the new Income Tax Act (hereinafter referred to as an "elderly person or similar person" in this Article and the following Article).

②The provisions then in force continue to govern the following interest on postal savings:

③If an individual who has a domicile in Japan and who falls under the category of an elderly person or similar person as of April 1, 1988 holds postal savings deposited before that date (excluding ordinary postal savings prescribed in Article 7, paragraph (1), item (i) of the Postal Savings Act (Act No. 144 of 1947)) which, on the day before that date, fall under the main clause of Article 9-2, paragraph (1) of the Income Tax Act prior to amendment by the provisions of Article 2 (hereinafter referred to as "the former Income Tax Act"), and, during the period from April 1, 1988 to the day on which the individual, on or after that date, first receives payment of interest on those postal savings (limited to interest to be received on or after that date) (or to March 31, 1989, if that day is after March 31, 1989, or, if on or after April 1, 1988 and before either of these days the individual deposits postal savings for which the individual seeks to apply the provisions of Article 9-2, paragraph (1) of the new Income Tax Act at a handling post office prescribed in that paragraph, to the day on which the individual first makes such a deposit), submits the application for tax-exempt postal savings prescribed in that paragraph to that handling post office and, at the time of that submission, presents the documents prescribed in paragraph (2) of that Article, gives notice in a manner equivalent to that provided for in that paragraph, and receives a seal of verification, then, with respect to that interest, the provisions of that Article apply by deeming those postal savings to have been deposited at that handling post office on April 1, 1988, and deeming that application to have been submitted on that date, respectively.

④Beyond what is provided for in the preceding three paragraphs, matters necessary for the application of the provisions of Article 9-2 of the new Income Tax Act and the preceding three paragraphs with respect to postal savings deposited before April 1, 1988 are specified by Cabinet Order.

①The provisions of Article 10 of the new Income Tax Act apply to Deposits and Savings, Jointly Managed Trusts, or Securities prescribed in Article 10, paragraph (1) of the new Income Tax Act that an individual who has a domicile in Japan and who is an elderly person or similar person deposits, places in trust, or purchases (hereinafter referred to as "placement" in this Article) on or after April 1, 1988 (or, for ordinary deposits or anything else specified by Cabinet Order as being similar thereto (hereinafter referred to as "ordinary deposits and similar deposits" in this Article), the date specified by Cabinet Order; the same applies in paragraph (4)).

②The provisions then in force continue to govern the following interest or distributions of proceeds from Deposits and Savings, Jointly Managed Trusts, or Securities prescribed in Article 10, paragraph (1) of the former Income Tax Act (hereinafter referred to as "deposits and similar savings" in this Article):

③If an individual who has a domicile in Japan and who falls under the category of an elderly person or similar person as of April 1, 1988 holds deposits and similar savings (excluding ordinary deposits and similar deposits) for which the individual made a placement before that date and which, on the day before that date, satisfy the requirements prescribed in Article 10 of the former Income Tax Act, and, during the period from April 1, 1988 to the day on which the individual, on or after that date, first receives payment of interest or distributions of proceeds on those deposits and similar savings (limited to those to be received on or after that date) (or to March 31, 1989, if that day is after March 31, 1989, or, if on or after April 1, 1988 and before either of these days the individual makes a placement of Deposits and Savings, a Jointly Managed Trust, or Securities for which the individual seeks to apply the provisions of Article 10, paragraph (1) of the new Income Tax Act at the business office of a financial institution or other such place prescribed in that paragraph, to the day on which the individual first makes such a placement), submits the statement of tax-exempt savings prescribed in Article 10, paragraph (3) of the new Income Tax Act to the district director prescribed in that paragraph via the business office of the financial institution or other such place, and the application to exempt savings from taxation prescribed in paragraph (1) of that Article relating to those deposits and similar savings to the business office of the financial institution or other such place, respectively, and, at the time of that submission, presents the documents prescribed in paragraph (5) of that Article, gives notice in a manner equivalent to that provided for in that paragraph, and receives a seal of verification (if those deposits and similar savings are a Loan Trust relating to bearer beneficiary certificates prescribed in paragraph (1), item (ii) of that Article or Securities prescribed in item (iii) of that paragraph, this is limited to when the entrustment of custody or the registration prescribed in those provisions is made at the time of that submission), then, with respect to that interest or those distributions of proceeds, the provisions of that Article apply by deeming those deposits and similar savings to have been placed at the business office of the financial institution or other such place on April 1, 1988, deeming that statement and that application to have been submitted on that date, and deeming that entrustment of custody or registration to have been made on that date, respectively.

④Beyond what is provided for in the preceding three paragraphs, matters necessary for the application of the provisions of Article 10 of the new Income Tax Act and the preceding three paragraphs with respect to deposits and similar savings for which a placement was made before April 1, 1988 are specified by Cabinet Order.

①The provisions of Article 11 of the new Income Tax Act apply to interest or distributions of proceeds from public and corporate bonds or similar instruments prescribed in paragraph (1) or (2), or paragraph (3) of that Article which a Domestic Corporation or Foreign Corporation, or a charitable trust, prescribed in those provisions is to receive on or after April 1, 1988, and the provisions then in force continue to govern interest and similar income or domestic source income, or income, prescribed in Article 11, paragraph (1) or (2), or paragraph (3) of the former Income Tax Act which that Domestic Corporation or Foreign Corporation, or that charitable trust, is to receive before that date.

②Notwithstanding the provisions of the preceding paragraph, the provisions then in force continue to govern the part of interest or distributions of proceeds from public and corporate bonds or similar instruments prescribed in Article 11, paragraphs (1) through (3) of the new Income Tax Act which a Domestic Corporation or Foreign Corporation, or a charitable trust, prescribed in the preceding paragraph is to receive on or after April 1, 1988 and which correspond to a calculation period for interest or distributions of proceeds from those public and corporate bonds or similar instruments that includes that date, that is equivalent to the amount calculated pursuant to Cabinet Order as the amount of the interest or distributions of proceeds corresponding to the period from the first day of that calculation period to March 31, 1988.

The provisions of Article 28, paragraph (1), Article 31, Article 35, paragraphs (2) through (5), Article 37, paragraph (1), and Article 120, paragraph (3), item (iii) of the new Income Tax Act apply to income tax for tax year 1988 and subsequent tax years, and the provisions then in force continue to govern income tax for tax year 1987 and prior tax years.

The provisions of Article 57-2 of the new Income Tax Act apply to income tax for tax year 1988 and subsequent tax years.

The provisions of Article 73, paragraph (1) of the new Income Tax Act apply to income tax for tax year 1988 and subsequent tax years, and the provisions then in force continue to govern income tax for tax year 1987 and prior tax years.

The provisions of Article 78, paragraph (3) of the new Income Tax Act apply to money prescribed in that paragraph which an individual expends on or after October 1, 1987.

The provisions of Article 80, paragraph (1) of the new Income Tax Act apply to income tax for tax year 1988 and subsequent tax years, and the provisions then in force continue to govern income tax for tax year 1987 and prior tax years.

With regard to the application of the provisions of Article 83-2 of the new Income Tax Act to income tax for tax year 1987, the term "165,000 yen" in paragraph (1) of that Article is deemed to be replaced with "112,500 yen", the term "16.5/33" in that paragraph with "11.25/33", and the term "16.5/33" in paragraph (2) of that Article with "11.25/33".

With regard to the application of the provisions of Article 140, paragraph (1) or Article 141, paragraph (1) of the new Income Tax Act (including as applied mutatis mutandis pursuant to Article 166 of the new Income Tax Act) if there is a Net Loss for 1987, the amount of income tax that forms the basis for calculating the refund under those provisions is the amount of income tax calculated by applying the provisions of Part II, Chapter III, Section 1 of the former Income Tax Act.

①The provisions of Article 161, items (i), (xi), and (xii), Article 162, Article 164, and Article 170 of the new Income Tax Act apply to domestic source income set forth in Article 161 of the new Income Tax Act which is to be received on or after April 1, 1988 (or, for ordinary deposits or anything else specified by Cabinet Order as being similar thereto (referred to as "ordinary deposits and similar deposits" in the following paragraph), the date specified by Cabinet Order; hereinafter the same applies in this paragraph), and the provisions then in force continue to govern such domestic source income which is to be received before April 1, 1988.

②Notwithstanding the provisions of the preceding paragraph, the provisions then in force continue to govern, among interest and similar income set forth in Article 161, item (iv) of the new Income Tax Act (excluding that relating to ordinary deposits and similar deposits; hereinafter referred to as "interest and similar income" in this paragraph) which a Nonresident is to receive on or after April 1, 1988 and which corresponds to a calculation period for interest and similar income that includes that date, the part of the interest and similar income equivalent to the amount calculated pursuant to Cabinet Order as the amount corresponding to the period from the first day of that calculation period to March 31, 1988.

③Notwithstanding the provisions of paragraph (1), the provisions then in force continue to govern, among compensation for periodic deposits, finance charges, profits, or margin profits set forth in Article 161, item (xi) of the new Income Tax Act (hereinafter referred to as "compensation for periodic deposits or similar amounts" in this paragraph) which a Nonresident is to receive on or after April 1, 1988 and which correspond to a period specified by Cabinet Order as the calculation period for compensation for periodic deposits or similar amounts that includes that date, the part of the compensation for periodic deposits or similar amounts equivalent to the amount calculated pursuant to Cabinet Order as the amount corresponding to the period from the first day of that period to March 31, 1988.

①The provisions of Part IV, Chapter I of the new Income Tax Act apply to interest and similar income prescribed in Article 181, paragraph (1) of the new Income Tax Act which is to be paid on or after April 1, 1988 (or, for ordinary deposits or anything else specified by Cabinet Order as being similar thereto (referred to as "ordinary deposits and similar deposits" in the following paragraph), the date specified by Cabinet Order; hereinafter the same applies in this paragraph), and the provisions then in force continue to govern interest and similar income prescribed in Article 181, paragraph (1) of the former Income Tax Act which is to be paid before April 1, 1988.

②Notwithstanding the provisions of the preceding paragraph, the provisions then in force continue to govern, among interest and similar income prescribed in the preceding paragraph (excluding that relating to ordinary deposits and similar deposits; hereinafter referred to as "interest and similar income" in this paragraph) which is to be paid on or after April 1, 1988 and which corresponds to a calculation period for interest and similar income that includes that date, the part of the interest and similar income equivalent to the amount calculated pursuant to Cabinet Order as the amount corresponding to the period from the first day of that calculation period to March 31, 1988.

①The provisions of Part IV, Chapter II, Section 1 of the new Income Tax Act and Appended Tables IV through VI of the new Income Tax Act apply to salary or other wages prescribed in Article 183, paragraph (1) of the new Income Tax Act (hereinafter referred to as "salary or other wages" in this Article) which are to be paid on or after October 1, 1987, and the provisions then in force continue to govern salary or other wages which are to be paid before that date.

②The provisions of Article 190 of the new Income Tax Act, and Appended Table VII of the new Income Tax Act and the supplementary table to that Table, apply to salary or other wages which are to be paid during 1987 and for which the last day of payment is on or after October 1, 1987, and the provisions then in force continue to govern those for which the last day of payment is before October 1, 1987. In such a case, with regard to the application of Appended Table VII of the new Income Tax Act, the term "500,000 yen" in Note (2) of that Table is deemed to be replaced with "250,000 yen".

The provisions of Article 195-2 of the new Income Tax Act apply to salary income earners' returns for special spousal deduction prescribed in paragraph (2) of that Article which are submitted on or after October 1, 1987.

The provisions of Article 201 of the new Income Tax Act and Appended Table VIII of the new Income Tax Act apply to severance pay or other such compensation prescribed in Article 199 of the new Income Tax Act (hereinafter referred to as "severance pay or other such compensation" in this Article and Article 27) which is to be paid during 1987 and is paid on or after October 1, 1987, and the provisions then in force continue to govern severance pay or other such compensation which is to be paid during 1987 and was paid before that date.

①The provisions of Part IV, Chapter III-2 of the new Income Tax Act apply to public pensions or retirement packages prescribed in Article 203-2 of the new Income Tax Act (hereinafter referred to as "public pensions or retirement packages" in this Article) which are to be paid on or after January 1, 1988, and the provisions then in force continue to govern pensions and public retirement packages prescribed in Article 28, paragraph (1) of the former Income Tax Act and pensions set forth in the items of Article 29 of the former Income Tax Act which are to be paid before that date.

②If a return under Article 203-5, paragraph (1) of the new Income Tax Act is submitted with respect to public pensions or retirement packages to be received during 1988, the provisions of paragraph (2) of that Article apply by deeming the phrase "the information stated in the return under that paragraph" in that paragraph to be replaced with "the information corresponding to the information set forth in the items of the preceding paragraph, among the information stated in a return under Article 194, paragraph (1) (Salary Income Earner's Return for Deduction for Dependents, Etc.) of the Income Tax Act prior to amendment by the provisions of Article 2 (Partial Amendment of the Income Tax Act) of the Act Partially Amending the Income Tax Act, etc. (Act No. 96 of 1987; hereinafter referred to as the "Income Tax Act Amendment Act" in this paragraph) (hereinafter referred to as "the former Income Tax Act" in this paragraph) (including a return under Article 194, paragraph (1) of the former Income Tax Act which is submitted pursuant to the provisions of Article 29-3, paragraph (2) (Special Provisions on Withholding from Salary Income for Public Retirement Packages and Pensions Deemed to Be Salary or Other Wages) of the Act on Special Measures Concerning Taxation prior to amendment by the provisions of Article 9 (Partial Amendment of the Act on Special Measures Concerning Taxation) of the Income Tax Act Amendment Act)".

③Approval received pursuant to the provisions of Article 29-3, paragraph (2) of the Act on Special Measures Concerning Taxation prior to amendment by the provisions of Article 9 is deemed to be approval received pursuant to the provisions of Article 203-5, paragraph (2) of the new Income Tax Act.

①The provisions of Part IV, Chapter IV, Section 3 of the new Income Tax Act apply to compensation for periodic deposits, finance charges, profits, or margin profits prescribed in Article 209-2 of the new Income Tax Act (hereinafter referred to as "compensation for periodic deposits or similar amounts" in this Article) which are to be paid on or after April 1, 1988, and the provisions then in force continue to govern compensation for periodic deposits or similar amounts which are to be paid before that date.

②Notwithstanding the provisions of the preceding paragraph, the provisions then in force continue to govern, among compensation for periodic deposits or similar amounts which are to be paid on or after April 1, 1988 and which correspond to a period specified by Cabinet Order as the calculation period for compensation for periodic deposits or similar amounts that includes that date, the part of the compensation for periodic deposits or similar amounts equivalent to the amount calculated pursuant to Cabinet Order as the amount corresponding to the period from the first day of that period to March 31, 1988.

①The provisions of Article 212, paragraphs (1) and (3) and Article 213 of the new Income Tax Act apply to domestic source income prescribed in Article 212, paragraph (1) of the new Income Tax Act (limited to that set forth in Article 161, item (iv) or (xi) of the new Income Tax Act; hereinafter referred to as "domestic source income" in this paragraph), and to interest and similar income or compensation for periodic deposits, finance charges, profits, or margin profits (hereinafter referred to as "compensation for periodic deposits or similar amounts" in this paragraph and paragraph (3)) prescribed in Article 212, paragraph (3) of the new Income Tax Act, which are to be paid on or after April 1, 1988 (or, for ordinary deposits or anything else specified by Cabinet Order as being similar thereto (referred to as "ordinary deposits and similar deposits" in the following paragraph), the date specified by Cabinet Order; hereinafter the same applies in this paragraph), and the provisions then in force continue to govern domestic source income, interest and similar income, or compensation for periodic deposits or similar amounts which are to be paid before April 1, 1988.

②Notwithstanding the provisions of the preceding paragraph, the provisions then in force continue to govern, among interest and similar income set forth in Article 161, item (iv) of the new Income Tax Act or interest and similar income prescribed in Article 212, paragraph (3) of the new Income Tax Act (excluding that relating to ordinary deposits and similar deposits; hereinafter referred to as "interest and similar income" in this paragraph) which is to be paid on or after April 1, 1988 and which corresponds to a calculation period for interest and similar income that includes that date, the part of the interest and similar income equivalent to the amount calculated pursuant to Cabinet Order as the amount corresponding to the period from the first day of that calculation period to March 31, 1988.

③The provisions of paragraph (2) of the preceding Article apply mutatis mutandis to compensation for periodic deposits or similar amounts which are to be paid on or after April 1, 1988 and which correspond to a period specified by Cabinet Order as the calculation period for compensation for periodic deposits or similar amounts that includes that date.

①The provisions of Article 225, paragraph (1), items (iii) and (viii) of the new Income Tax Act apply to compensation for periodic deposits, finance charges, profits, or margin profits prescribed in item (iii) of that paragraph (hereinafter referred to as "compensation for periodic deposits or similar amounts" in this paragraph and the following paragraph) and to domestic source income prescribed in paragraph (1), item (viii) of that Article (limited to that set forth in Article 161, item (xi) of the new Income Tax Act; hereinafter referred to as "domestic source income" in this paragraph and the following paragraph), which are to be paid on or after April 1, 1988, and the provisions then in force continue to govern compensation for periodic deposits or similar amounts and domestic source income which are to be paid before that date.

②If compensation for periodic deposits or similar amounts or domestic source income which are to be paid on or after April 1, 1988 correspond to a period specified by Cabinet Order as the calculation period for compensation for periodic deposits or similar amounts or domestic source income that includes that date, notwithstanding the provisions of the preceding paragraph, the provisions of Article 225, paragraph (1) of the new Income Tax Act apply to the part of those compensation for periodic deposits or similar amounts or that domestic source income equivalent to the amount calculated pursuant to Cabinet Order as the amount corresponding to the period from that date to the day on which those compensation for periodic deposits or similar amounts or that domestic source income are to be paid.

③The provisions of Article 226, paragraph (3) of the new Income Tax Act apply to public pensions or retirement packages prescribed in that paragraph which are to be paid on or after January 1, 1988, and the provisions then in force continue to govern such public pensions or retirement packages which are to be paid before that date.

The provisions of Article 231 of the new Income Tax Act apply to public pensions or retirement packages prescribed in that Article which are to be paid on or after January 1, 1988, and the provisions then in force continue to govern such public pensions or retirement packages which are to be paid before that date.

A person who, before October 1, 1987, filed a return under Article 125 or Article 127 of the former Income Tax Act (including as applied mutatis mutandis pursuant to Article 166 of the former Income Tax Act) with respect to income tax for tax year 1987, and a person who, before that date, received a determination under Article 25 of the Act on General Rules for National Taxes with respect to income tax for that tax year, may, if the application of the provisions of the new Income Tax Act gives rise to a change in the information stated in that return or the information relating to that determination (or, if a Reassessment under Article 24 or Article 26 of that Act was made with respect to that information before that date, the information after that Reassessment), file a request for Reassessment under Article 23, paragraph (1) of the Act on General Rules for National Taxes with the district director with respect to the information in which the change arises, within one year from that date.

①If the amount of income tax withheld pursuant to the provisions of Articles 199 through 202 of the former Income Tax Act from severance pay or other such compensation which was to be paid during 1987 and was paid before October 1, 1987 exceeds the amount of income tax that would result from applying the provisions of Article 201 of the new Income Tax Act and Article 202 of the new Income Tax Act to that severance pay or other such compensation, the Resident who received payment of that severance pay or other such compensation may request the competent district director for the locality in which the Resident pays taxes to refund the excess amount, by December 31, 1987, pursuant to Cabinet Order.

②If a request for a refund under the preceding paragraph has been made with respect to severance pay or other such compensation prescribed in that paragraph, then, with regard to the application of the provisions concerning the filing of returns, Reassessment or determination, payment, collection (excluding withholding from severance pay or other such compensation), and refund (excluding the refund for which that request is made) for that Resident's income tax for tax year 1987, and with regard to the application of the provisions of Article 201, paragraph (1), item (ii) of the new Income Tax Act to severance pay or other such compensation which is to be paid during 1987 and is paid on or after October 1, 1987, income tax is deemed to have been withheld in the amount obtained by deducting the amount to be refunded pursuant to that request from the amount of income tax withheld pursuant to the provisions of Articles 199 through 202 of the former Income Tax Act from the severance pay or other such compensation to which that request relates.

③When calculating interest on refund prescribed in Article 58, paragraph (1) of the Act on General Rules for National Taxes for a refund under paragraph (1), the period under that paragraph which forms the basis of the calculation is the period from the day following the day on which one month has elapsed from the day on which the request for the refund under paragraph (1) was made, to the day of the decision to pay for that refund or the day on which an Appropriation of that refund is made (where the refund became eligible for Appropriation before that day, the day on which it became so eligible).

The provisions then in force continue to govern the application of penal provisions to conduct engaged in before the provisions of Article 2 come into effect and to conduct engaged in after the provisions of that Article come into effect with respect to income tax for which prior laws are to continue to govern pursuant to the provisions of these Supplementary Provisions.

With regard to how income tax should be imposed on interest income, including the question of a shift to comprehensive taxation, a review is to be conducted as necessary once five years have elapsed after this Act comes into effect.