Important Dates

Due Dates (Fixed)
  • February 28 – T4 and T5 filing deadline
  • March 15 – Personal income tax instalment
  • April 30 – Personal Income Tax Return (regular deadline and interest charges begin for self-employed)
  • June 15 – Personal Income Tax Return deadline for self-employed (penalty deadline only)
  • June 15 – Personal income tax instalment
  • September 15 – Personal income tax instalment
  • December 15 – Personal income tax instalment
  • Payroll Remittance is before the 15th of the month after the month you made deduction.
Due Dates (variable)
  • Corporate Tax Return
  • interest starts 2 months post year-end for corp’s not eligible for SBD
  • interest starts 3 months post year-end for CCPC’s
  • tax return due 6 months post year end
  • instalments due at end of each month
  • if gst/hst annual filer return is due 3 months post year-end
  • if gst/hst  monthly/quarterly filer its due 1 month after quarter