336.12. For the purposes of subparagraph ii of subparagraphs a and b of the first paragraph of section 752.0.7.4, the following rules apply if a transferor and a transferee make a joint election for a taxation year:(a) the amount described in the second paragraph of section 752.0.7.4 in respect of the transferor for the year is deemed to be equal to the result obtained by subtracting from that amount otherwise determined the portion of that amount that is the proportion that the split-retirement income amount in respect of the transferor for the year is of the eligible retirement income of the transferor for the year; and
(b) the amount described in the second paragraph of section 752.0.7.4 in respect of the transferee for the year is deemed to be equal to the result obtained by adding to that amount otherwise determined the amount subtracted in accordance with paragraph a for the year.