恒久的施設を有する非居住者が各年において外国所得税(第九十五条第一項(外国税額控除)に規定する外国所得税をいう。以下この項及び第六項において同じ。)を納付することとなる場合には、恒久的施設帰属所得に係る所得の金額につき第百六十五条第一項(総合課税に係る所得税の課税標準、税額等の計算)の規定により準じて計算する第八十九条から第九十二条まで(税率及び配当控除)の規定及び前条の規定により計算したその年分の所得税の額のうち、その年において生じた国外所得金額(恒久的施設帰属所得に係る所得の金額のうち国外源泉所得に係るものとして政令で定める金額をいう。)に対応するものとして政令で定めるところにより計算した金額(以下この条において「控除限度額」という。)を限度として、その外国所得税の額(第百六十一条第一項第一号(国内源泉所得)に掲げる国内源泉所得につき課される外国所得税の額に限るものとし、非居住者の通常行われる取引と認められないものとして政令で定める取引に基因して生じた所得に対して課される外国所得税の額その他政令で定める外国所得税の額を除く。以下この条において「控除対象外国所得税の額」という。)をその年分の所得税の額から控除する。
If a Nonresident with a permanent establishment has to pay foreign income taxes (meaning foreign income taxes as prescribed in Article 95, paragraph (1) (Foreign Tax Credit); hereinafter the same applies in this paragraph and paragraph (6)) in any year, the amount of those foreign income taxes (limited to the amount of foreign income taxes imposed on domestic source income set forth in Article 161, paragraph (1), item (i) (Domestic Source Income), and excluding the amount of any foreign income taxes imposed on income arising from a transaction prescribed by Cabinet Order as one that cannot be regarded as an ordinary transaction undertaken by a Nonresident and the amount of any other foreign income taxes prescribed by Cabinet Order; hereinafter referred to as the "amount of credit-eligible foreign income tax" in this Article) is credited against the income tax for that year, up to the amount calculated pursuant to Cabinet Order as corresponding to the amount of foreign income arising in that year (meaning the amount prescribed by Cabinet Order as the part of the income related to income attributable to a permanent establishment which relates to foreign source income), out of the income tax for that year calculated pursuant to the provisions of Article 89 through Article 92 (Tax Rates and Dividend Tax Credits), as applied in accordance with Article 165, paragraph (1) (Calculation of the Tax Base and Amount of Income Taxes Imposed on Aggregate Income) to the income related to income attributable to a permanent establishment, and the provisions of the preceding Article (hereinafter referred to as the "maximum credit" in this Article).