Reduction in amount allowed
Notwithstanding subsection (b), the amount of any income, war profits, and excess profits taxes paid or accrued during the taxable year to any foreign country or possession of the United States with respect to foreign mineral income from sources within such country or possession which would (but for this paragraph) be allowed under such subsection shall be reduced by the amount (if any) by which—
(A)#
the amount of such taxes (or, if smaller, the amount of the tax which would be computed under this chapter with respect to such income determined without the deduction allowed under section 613), exceeds
(B)#
the amount of the tax computed under this chapter with respect to such income.