Versions of s. 21(3)(b)

in each taxation year, if any, after that preceding taxation year and before the particular year, made an election under this subsection covering the total amount that, but for an election under this subsection in respect thereof, would have been deductible in computing the taxpayer’s income (other than exempt income) for each such year in respect of the borrowed money used to acquire the depreciable property or the amount payable for the depreciable property acquired by the taxpayer,