With regard to the revenue that was raised or lost as a result of changes to the federal income tax that took effect on January 1, 2016: (a) what are the details of any discussions or meetings where the possibility of increased or lost revenue as a result of changes to federal income tax that took effect on January 1, 2016, was discussed, including (i) date, (ii) participants and location; and (b) do any supporting documents exist about the revenue that was raised or lost as a result of changes to federal income tax that took effect on January 1, 2016, including but not limited to, e-mails, briefing notes, memos and reports, and, if so, what are the details of such documents?
In the House of Commons on April 5th, 2019. See this statement in context.