What are the deadlines to file your income tax return?

In Quebec, the deadline to file your income tax return is April 30. If you or your spouse or common-law partner ran a business, it is extended to June 15. Any balance owing must still be paid by April 30. When a deadline falls on a Saturday or Sunday, it moves to the next business day. For the 2025 tax year, the dates were April 30, 2026 and June 15, 2026: these dates come back every year, but the year and the day of the week change.

Key facts

Filing deadline (general)

April 30

Filing deadline (business income, you or your spouse)

June 15

Payment deadline for a balance owing

April 30

Last season (2025 tax year)

April 30, 2026 and June 15, 2026

If the date falls on a Saturday or Sunday

The deadline is extended to the next business day

After the payment date

Interest is calculated on the unpaid balance

Steps

1. Check the year: the return you file in the spring covers the previous tax year (for the 2026 season, it was the 2025 tax year).
2. For most individuals, file your return (Revenu Québec and Canada Revenue Agency) by April 30. For the 2025 tax year, that was April 30, 2026.
3. If you or your spouse or common-law partner ran a business, the filing deadline is extended to June 15 (June 15, 2026 for the 2025 tax year). Federally, it is April 30 if the business expenses relate mainly to a tax shelter investment.
4. Pay any balance owing by April 30, even if you have until June 15 to file your return.
5. When a deadline falls on a Saturday or Sunday, the deadline is extended to the next business day.
6. Even if you cannot pay your whole balance, file your return on time to avoid a late-filing penalty.
7. If the return is for a deceased person, the deadline may be different: see the Canada Revenue Agency page.

General information drawn from official sources. It does not replace legal, medical or financial advice. For your situation, contact the organization concerned or a professional.