Guides
Quebec tax calendar
The dates that matter for individuals and small businesses in Quebec. When a deadline falls on a weekend or holiday, it usually moves to the next business day.
Last reviewed: September 2026
| Date | Topic | What happens |
|---|---|---|
| Last day of February | Slips | Employers file and hand out T4 and RL-1 slips for the previous year. Most income slips should reach you around this time. |
| 60 days after December 31 (early March) | RRSP | Last day to contribute to an RRSP and deduct it on the previous year's return. |
| March 15, June 15, September 15, December 15 | Instalments | Quarterly tax instalments, for people who were asked to pay tax during the year instead of all at once. |
| April 30 | Personal returns | Federal and Quebec personal returns are due, and any balance owing must be paid, for everyone. |
| June 15 | Self-employed | Filing deadline for self-employed people and their spouses. Any balance owing was still due April 30. |
| 6 months after year-end | Corporations | Federal (T2) and Quebec (CO-17) corporate returns are due. Tax owing is usually due earlier, two or three months after year-end. |
| 1 month after each period | GST/QST | Monthly and quarterly filers file and pay one month after the end of each reporting period. Annual filers follow different dates. |
| December 31 | Year-end | Last day for donations, medical expenses and FHSA contributions to count for this tax year. |
General information, not advice for your situation. Rules and deadlines can change; we confirm what applies to you.
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