Tax Season Dates:

Filing deadlines:

April 30 (most filers)
June 15 (self-employed filers and their spouses or common-law partners)
June 30 (TFSA return)
GST/HST credit payments:

January 5
April 5
July 5
October 5
Installment payments due:

March 15
June 15
September 15
December 15
December 31 (farmers and fishers pay their yearly installment payment)

RRSP contribution deadline:

March 1