961.17.0.5. Where, in respect of an amount required, at any time in a taxation year, to be included in computing the income of the individual’s spouse, all or part of a premium has, by virtue of section 961.17.0.1, been included in computing the individual’s income for the year, the following rules apply:(a) the premium or part thereof, as the case may be, is, for the purposes of sections 931.1 and 961.17.0.1, after that time, deemed not to have been a premium paid to a registered retirement savings plan under which the individual’s spouse was the annuitant, within the meaning of paragraph b of section 905.1; and
(b) an amount equal to the premium or part thereof, as the case may be, may be deducted in computing the income of the spouse for the year.