• Deadline of buying RRSP is 60 days after December 31.
• Deadline of filing income tax returns for deceased person is April 30 of the following year if death occurred between January 1 and October 31, 6 months after death if death occurred between November 1 and December 31
• Deadline for filing GST returns of sole proprietors is 15 June 2009, however the due date of GST owed is 30 April 2009

When a due date falls on a Saturday, a Sunday, or a public holiday, payment made or return filed postmarked on the next business day is not considered late.