①This Act comes into effect on April 1, 1952, and the amending provisions other than those for Article 38, paragraph (1), Article 45, paragraph (1), Article 51 and Article 52, paragraph (1) apply from the inheritance tax on property acquired by inheritance, bequest or gift on or after January 1, 1952, and the amending provision for Article 52, paragraph (1) applies from the amount of interest tax on the amount subject to deferment for which the due date for payment of the installment arrives on or after the day on which this Act comes into effect.

②Among amounts of inheritance tax or additional tax for which permission to defer payment was received before this Act comes into effect and in which the ratio that the total value of real property, standing trees and other property specified by Cabinet Order prescribed in Article 38, paragraph (1) of the Inheritance Tax Act after the amendment accounts for in the total value of the property that formed the basis for the taxable value that formed the basis for calculating that amount of inheritance tax or additional tax is 50 percent or more, for those for which the due date for the installment payment arrives after this Act comes into effect, in accordance with Cabinet Order, the district director may extend the deferment period or change the conditions of deferment within 10 years after the day following the due date for payment prescribed in Article 33, paragraph (1) of that Act for that amount of inheritance tax or additional tax.