Canada

Important deadlines

Key dates for Canadian businesses, each with its official source. Always confirm against the CRA before you rely on a date.

Upcoming

Instalments September 15, 2026

Applies to: Individuals required to pay income tax by instalments in 2026

2026 instalments are due 15 March, 15 June, 15 September and 15 December. The next upcoming date is shown here.

Official source ↗ · Updated August 21, 2026

RRSP March 1, 2027

Applies to: Individuals contributing to an RRSP for the 2026 tax year

Contributions made on or before this date (the first 60 days of 2027) can be deducted on your 2026 return, subject to your contribution room.

Official source ↗ · Updated August 21, 2026

Payroll / information returns March 1, 2027

Applies to: Employers and payers who issued remuneration or reportable amounts in 2026

File T4, T4A and T5 information returns with the CRA and give copies to recipients by the last business day of February following the year.

Official source ↗ · Updated August 21, 2026

Personal tax (T1) April 30, 2027

Applies to: Most individuals (employees, retirees, and others who are not self-employed)

File your 2026 T1 return and pay any balance owing by this date. Interest on unpaid amounts starts the next day.

Official source ↗ · Updated August 21, 2026

Personal tax (T1) June 15, 2027

Applies to: Self-employed individuals and their spouses or common-law partners

If you or your spouse were self-employed, your 2026 return is due by this date — but any balance owing was still due 30 April 2027.

Official source ↗ · Updated August 21, 2026