Sean Keenan, Director, Personal Income Tax Division, Tax Policy Branch, Department of Finance Canada: CPP benefits are taxable, included in your income, and your pension benefits are taxable, so to the extent that the plan is currently stacked, you receive a pension benefit and then an additional CPP benefit on top of that.
Sean Keenan, directeur, Division de l'impôt des particuliers, Direction de la politique de l'impôt, Finances Canada : Les prestations du RPC sont imposables.