FirmdeskCRA deadlines · 2027
T1 deadlines, for employees and the self-employed
Most people file their 2026 return and pay any balance by April 30, 2027. People who ran a business, and their spouses or common-law partners, have until June 15 to file, but the balance is still due April 30.
The return and the balance
| What's due | Due |
|---|---|
| T1 return & balance due — 2026 |
Self-employed
| What's due | Due |
|---|---|
| T1 balance due — 2026 | |
| T1 return — 2026 (self-employed) |
Instalments
For those who have to pay them: the 15th of March, June, September and December.
| Instalment | Due |
|---|---|
| T1 instalment — Mar 15, 2027 | |
| T1 instalment — Jun 15, 2027 | |
| T1 instalment — Sep 15, 2027 | |
| T1 instalment — Dec 15, 2027 |
A sole proprietor who files GST/HST once a year files by June 15 and pays by April 30 too: see GST/HST deadlines.