This Act comes into effect on the date of promulgation.

Except as otherwise provided in these Supplementary Provisions, the provisions of the Income Tax Act as amended (hereinafter referred to as "the new Act") apply to income tax for 1973 and subsequent years, and the provisions then in force continue to govern income tax for 1972 and earlier years.

The amount of salary income for 1973 is to be an amount equivalent to the amount of salary or other wage after the salary income deduction obtained under Appended Table 1 of the Supplementary Provisions according to the amount of revenue from salary or other wage as prescribed in Article 28, paragraph (1) (Salary Income) of the new Act (hereinafter referred to as "salary or other wage") during that year, taking that amount of revenue as the amount of salary or other wage in that table.

The provisions of Article 9, paragraph (1), item (xi), (d) (Nontaxability of Income from Transfer of Securities) of the new Act apply to income from the transfer of Securities set forth in (d) of that item on or after the date on which this Act comes into effect (hereinafter referred to as "the effective date").

With regard to a Resident's income tax for 1973, the Tax Prepayment calculation base prescribed in Article 104, paragraph (1) (Making Tax Prepayments) of the new Act (hereinafter referred to as the "Tax Prepayment calculation base") is to be, except in the case where the provisions of the following paragraph apply, the amount calculated by multiplying the amount set forth in item (i) by the rate set forth in item (ii):

The Tax Prepayment calculation base for income tax for 1973 of a Resident whose taxable gross income, etc. for 1972 is 20 million yen or more is to be the amount arrived at when 20,000 yen is deducted from the amount set forth in item (i) of the preceding paragraph for that person.

The calculation of the Tax Prepayment calculation base for 1973 in the case where Article 97, paragraph (1) (Amount of Tax If There Are Household Members Subject to Aggregation) of the former Act was applied to income tax for 1972 is specified by Cabinet Order.

The Tax Prepayment calculation base for income tax for 1973 of a Nonresident is as calculated in accordance with the provisions of the preceding three paragraphs.

The provisions of Article 181, paragraph (2) (Obligation to Withhold Taxes from Dividends and Similar Income) of the new Act apply to dividends and similar income prescribed in that paragraph that are payable on or after the effective date, and the provisions then in force continue to govern dividends and similar income prescribed in Article 181, paragraph (2) of the former Act that are payable before that date.

The provisions of Part IV, Chapter II, Section 1 (Obligation to Withhold Taxes from Salary Income and Amount Withheld) of the new Act and Appended Tables 4 through 6 of the new Act apply to salary or other wage payable on or after the effective date, and the provisions then in force continue to govern salary or other wage payable before that date.

The provisions of Article 190 (Year-End Adjustments) of the new Act as deemed to be replaced pursuant to Article 3, paragraph (2) (Special Provisions on the Amount of Salary Income and Income Deductions, etc. for 1973) of the Supplementary Provisions, and Appended Table 1 of the Supplementary Provisions, apply in the case where the last payment of salary or other wage payable during 1973 is made on or after the effective date, and the provisions then in force continue to govern in the case where that last payment is made before the effective date.

The provisions of Article 201 (Tax Withheld from Retirement Income) of the new Act, and Appended Table 8 of the new Act and the annexed table to that Table, apply to severance pay or other such compensation as prescribed in Article 199 (Obligation to Withhold Taxes from Retirement Income) of the new Act (hereinafter referred to as "severance pay or other such compensation") that is payable on or after January 1, 1973 and is paid on or after the effective date, and the provisions then in force continue to govern severance pay or other such compensation payable during that year that was paid before that date.

The provisions of Article 217, paragraph (5) (Application for Approval of Special Provisions on the Payment Deadline) of the new Act apply to written applications under paragraph (1) of that Article that are submitted on or after the effective date.

The provisions of the second sentence of Article 224, paragraph (1) (Notice by Recipients of Interest and Similar Income from Bearer Public and Corporate Bonds) of the new Act apply in the case where the payment referred to in that paragraph is made on or after the effective date.

A person who, before the effective date, filed a return under Article 127 (Filing a Tax Return in the Case of Absence From Japan Partway Through the Year) of the former Act (including as applied mutatis mutandis pursuant to Article 166 (Application Mutatis Mutandis to Nonresidents) of the former Act) with regard to income tax for 1973, and a person who, before that date, received a determination under Article 25 (Determination) of the Act on General Rules for National Taxes (Act No. 66 of 1962) with regard to income tax for that year, may, if the application of the provisions of the new Act results in a change to the matters stated in that return or the matters pertaining to that determination (or, if a Reassessment under Article 24 (Reassessment) or Article 26 (Reassessment of Previous Reassessment) of that Act was made with respect to those matters before that date, the matters as they stand after that Reassessment), file a request for Reassessment under Article 23, paragraph (1) (Request for Reassessment) of the Act on General Rules for National Taxes with the district director by March 31, 1974, with respect to the matters to which that change applies.

If a Reassessment under Article 24 or Article 26 of the Act on General Rules for National Taxes has been made based on a request for Reassessment referred to in the preceding paragraph, and the interest on refund prescribed in Article 58, paragraph (1) (Interest on Refunds) of the Act on General Rules for National Taxes is calculated for a refund under Article 159, paragraph (2) (Refunding Taxes Withheld, Based on Reassessment or Determination) of the new Act (including as applied mutatis mutandis pursuant to Article 168 (Application Mutatis Mutandis to Nonresidents) of the new Act), the period referred to in that paragraph which serves as the basis for the calculation is to be the period beginning on the effective date and ending on the day on which the decision to pay the refund is made or on the day on which Appropriation of the refund under Article 57, paragraph (1) (Appropriation) of that Act (hereinafter referred to as "Appropriation") is made (or, if there is a day before that day on which the refund became suitable for Appropriation, ending on that day).

If the amount of income tax collected pursuant to the provisions of Articles 199 through 202 (Withholding from Retirement Income) of the former Act on severance pay or other such compensation payable during 1973 which was paid before the effective date exceeds the amount of income tax that would result from applying the provisions of Articles 201 and 202 of the new Act to that severance pay or other such compensation, the Resident who received payment of that severance pay or other such compensation may, pursuant to the provisions of Cabinet Order, request the district director with jurisdiction over the place for tax payment to refund the excess amount by June 30 of that year.

If a request for a refund under the preceding paragraph has been made for severance pay or other such compensation prescribed in that paragraph, then, with regard to the application of the provisions on returns, Reassessment or determination, payment, collection (excluding withholding on severance pay or other such compensation) and refunds (excluding the refund to which the request pertains) concerning the Resident's income tax for 1973, and the application of the provisions of Article 201, paragraph (1), item (ii) of the new Act to severance pay or other such compensation payable during that year which is paid on or after the effective date, income tax is deemed to have been collected on the severance pay or other such compensation to which the request pertains in the amount obtained by deducting the amount to be refunded under the request from the amount of income tax collected on it pursuant to the provisions of Articles 199 through 202 of the former Act.

If the interest on refund prescribed in Article 58, paragraph (1) (Interest on Refunds) of the Act on General Rules for National Taxes is calculated for a refund under paragraph (1), the period referred to in that paragraph which serves as the basis for the calculation is to be the period beginning on the day after the day on which one month elapses from the day on which the request for a refund under paragraph (1) was made, and ending on the day on which the decision to pay the refund is made or on the day on which Appropriation of the refund is made (or, if there is a day before that day on which the refund became suitable for Appropriation, ending on that day).