Canadian Fixed Due Dates
- January 15 – December payroll remittance
- February 15 – January payroll remittance
- February 28 – T4 and T5 filing deadline
- March 15 – February payroll remittance
- March 15 – Personal income tax instalment
- March 31 – NR4 filing deadline
- March 31 – Family Trust filing deadline
- April 15 – March payroll remittance
- April 30 – Personal Income Tax Return (regular deadline and interest charges begin for self-employed)
- May 15 – April payroll remittance
- June 15 – May payroll remittance
- June 15 – Personal Income Tax Return deadline for self-employed (penalty deadline only)
- June 15 – Personal income tax instalment
- July 15 – June payroll remittance
- August 15 – July payroll remittance
- September 15 – August payroll remittance
- September 15 – Personal income tax instalment
- October 15 – September payroll remittance
- November 15 – October payroll remittance
- December 15 – November payroll remittance
- December 15 – Personal income tax instalment