181. Where in a taxation year a taxpayer has used borrowed money for the purpose of exploration, development or the acquisition of property and the expenses incurred by the taxpayer in respect of those activities are Canadian exploration and development expenses, foreign exploration and development expenses, Canadian exploration expenses, Canadian development expenses, foreign resource expenses in relation to a country or Canadian oil and gas property expenses, as the case may be, the taxpayer may elect in the taxpayer’s fiscal return filed under this Part for the year, to have the following rules apply: (a) in computing the taxpayer’s income for the year and for such of the three immediately preceding taxation years as the taxpayer had, sections 160, 163, 176 and 176.4 do not apply to the amount specified in the taxpayer’s election that, but for that election, would be deductible in computing the taxpayer’s income, other than exempt income or income that is exempt from tax under this Part, for any such year in respect of the borrowed money used for the exploration, development or acquisition of property, as the case may be; and
(b) the amount described in paragraph a is deemed to be Canadian exploration and development expenses, foreign exploration and development expenses, Canadian exploration expenses, Canadian development expenses, foreign resource expenses in relation to a country or Canadian oil and gas property expenses, as the case may be, incurred by the taxpayer in the year.