Source deductions balance payable from the prior year

T4, T5 filing deadline

RRSP contribution deadline

First personal tax instalment due

General trust return deadline
Partnership information return deadline

Individual tax return deadline
Self-employed GST balance due

Self-employed individual tax return filing deadline (taxes payable due April 30)
Second personal tax instalment due

Contract payment reporting information return deadline
(or six months after your reporting period if it is not December 31)

Third personal tax instalment date

Fourth personal tax instalment date