In finding that the appreciated amount of an exchangeable debenture when paid on maturity could not be recognized under s. 20(1)(e), CRA stated:
It follows that the appreciation of the principal amount of a debenture over its face value is a payment on account of capital, the deduction of which is prohibited by paragraph 18(1)(b). Paragraph 20(1)(e) does not apply to such appreciation, because this would be an amount paid on account of the principal amount of the debenture, and therefore an excluded amount for the purposes of paragraph 20(1)(e).