居住者が各年において外国所得税(外国の法令により課される所得税に相当する税で政令で定めるものをいう。以下この項及び第九項において同じ。)を納付することとなる場合には、第八十九条から第九十三条まで(税率等)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(国外源泉所得に係る所得のみについて所得税を課するものとした場合に課税標準となるべき金額に相当す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(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、居住者の所得税に関する法令の規定により所得税が課されないこととなる金額を課税標準として外国所得税に関する法令により課されるものとして政令で定め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 Resident has to pay foreign income taxes in any year (meaning taxes imposed pursuant to foreign laws or orders which are equivalent to income taxes and provided for by Cabinet Order; hereinafter the same applies in this paragraph and paragraph (9)), the amount of those foreign income taxes (other than any foreign income taxes imposed on income arising from a transaction provided for by Cabinet Order as one that cannot be regarded as an ordinary transaction undertaken by a Resident; other than any foreign income taxes prescribed by Cabinet Order as being imposed pursuant to foreign income tax laws or orders using as the tax base an amount on which income taxes are not to be imposed under the provisions of laws and orders concerning a Resident's income taxes; and any other foreign income taxes as prescribed by Cabinet Order; hereinafter referred to as the "amount of credit-eligible foreign income tax" in this Article) is allowed as a credit against the amount of income tax for the year, up to what is calculated pursuant to Cabinet Order as the part of the amount of income tax for the year as calculated pursuant to the provisions of Article 89 through Article 93 (Tax Rates and Related Matters) which corresponds to the amount of foreign income arising in that year (meaning the amount prescribed by Cabinet Order as equivalent to the amount that would be the tax base if income tax were imposed only on income related to foreign source income) (hereinafter the amount so calculated is referred to as the "maximum credit" in this Article).