Penalty tax for understatement, failure to file, non-payment, and heavy penalty tax (hereinafter collectively referred to as "penalty tax") are to be national tax falling under the tax items which apply to the tax amount that is the basis for the calculation of the amount of such penalty tax.
過少申告加算税、無申告加算税、不納付加算税及び重加算税（以下「加算税」という。）は、その額の計算の基礎となる税額の属する税目の国税とする。
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national taxmachine translation
「国税」
A tax imposed by the national government, other than customs duty, tonnage tax, special tonnage tax, the forest environment tax and the special corporate business tax.
Defined inArticle 2, paragraph (1), item (i)· applies throughout the law
penalty tax
「加算税」
The four penalty taxes charged on top of a tax — for understatement (過少申告加算税), for failure to file (無申告加算税), for non-payment (不納付加算税), and the heavy penalty tax (重加算税) — each of which counts as a national tax of the same tax item as the tax it is calculated on.
Short name set inArticle 69, paragraph (1)