180. A taxpayer who during a taxation year acquires depreciable property may elect, in his fiscal return filed under this Part for the year, to have the following rules apply:(a) in computing his 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 his election that, but for the election, would have been deductible in computing his income, other than exempt income, for any such year in respect of borrowed money used to acquire the depreciable property or the amount payable for the depreciable property;
(b) the amount referred to in paragraph a shall be included in computing the capital cost to him of the depreciable property.