2026 Tax Deadlines
Calendar of key tax deadlines for individuals and corporations.
Individuals
- April 30, 2026 — T1 tax return filing deadline
- June 15, 2026 — Self-employed filing deadline (payment due April 30)
Corporations
- 6 months after year-end — T2 and CO-17 filing
- 2 months after year-end — Tax balance payment (3 months for eligible CCPCs)
GST/QST
- Monthly or quarterly returns — One month after period end
- Annual returns — 3 months after year-end