Part XIII tax  — eligible bank affiliate

an amount paid under paragraph 212(1)(b) in respect of interest paid or credited in the year by the particular corporation in respect of an upstream deposit (as defined in subsection 95(2.43)) owing to a non-resident corporation that is, throughout the year, an eligible bank affiliate (as defined in subsection 95(2.43)) of the particular corporation

the total of all amounts each of which is a portion of the amount described in paragraph (a) that is available to the non-resident corporation or any other person or partnership at any time as a credit or reduction of, or deduction from, any amount otherwise payable to the government of a country other than Canada, or a political subdivision of that country, having regard to all available provisions of the laws of that country, or political subdivision, as the case may be, any tax treaty with that country and any other agreements entered into by that country or political subdivision.