Section 218.3 — Excise Tax Act: When tax payable

Tax under section 218.01 and subsection 218.1(1.2) that is determined for a specified year of a qualifying taxpayer becomes payable by the qualifying taxpayer on if the specified year is a taxation year of the qualifying taxpayer for the purposes of the Income Tax Act and the qualifying taxpayer is required under Division I of that Act to file a return of income for the specified year, the filing-due date for the specified year for the purposes of that Act;

and in any other case, the day that is six months after the end of the specified year.