Supplementary Provisions, Article 5, paragraph (1)
第一項
The provisions of Article 58 (Interest on Refund) apply to the amount to be added to a refund, etc. for which a payment decision is made or which is appropriated after the enforcement of this Act; provided, however, that the calculation of all or part of the amount to be added that corresponds to the period before the enforcement of this Act is governed by the former tax laws.