Tax Deadlines 2027 in Quebec: March 1, April 30, June 15
For the 2026 tax year in Quebec, remember three dates in 2027: March 1 to contribute to your RRSP, April 30 to file both of your tax returns and pay any balance, and June 15 to file if you are self-employed. Filing late with a balance owing costs 5% plus 1% for each full month you are late.
In Quebec, you file two returns every year: a federal one with the Canada Revenue Agency and a provincial one with Revenu Québec. The deadlines are nearly identical from one administration to the other, but penalties can apply on both sides if you miss a deadline with a balance owing. Here is the full calendar for the 2026 tax year, filed in spring 2027, plus the two year-end 2026 dates to settle before you even start.
Want to know your balance before April 30, 2027? Try our Quebec income tax calculator: it estimates your 2026 federal and provincial tax in a few minutes, with no sign-up.
What are the tax deadlines to remember in Quebec in 2027?
Six dates cover almost every situation in 2027: March 1 for the RRSP and tax slips, March 15 for the first tax instalment, April 30 to file and pay, June 15 for self-employed filing and the second instalment, then the September 15 and December 15 instalments. The table below sums up each date and who it applies to.
| Date | What to do | Who it applies to |
|---|---|---|
| March 1, 2027 | Last RRSP contribution deductible for 2026 | RRSP savers |
| March 1, 2027 | T4 slips and RL-1 slips issued by employers | Employees |
| March 15, 2027 | First 2027 tax instalment | People required to pay instalments |
| April 30, 2027 | File your federal and Quebec returns and pay your balance | Most individuals |
| June 15, 2027 | File your returns if you or your spouse ran a business | Self-employed people and their spouses |
| June 15, 2027 | Second 2027 tax instalment | People required to pay instalments |
| September 15, 2027 | Third 2027 tax instalment | People required to pay instalments |
| December 15, 2027 | Fourth 2027 tax instalment | People required to pay instalments |
Above all, keep the distinction between filing and paying in mind: except for self-employed filing, none of these dates moves the payment deadline, which is April 30, 2027 in every case.
What is the RRSP contribution deadline in 2027?
The deadline is Monday, March 1, 2027. The Canada Revenue Agency counts contributions made during the first 60 days of the year: for the 2026 tax year, that period runs from January 1 to March 1, 2027. A contribution made on March 2, 2027 will count for the 2027 tax year, not 2026, even if you have not filed your return yet.
Check your contribution room before you contribute: it appears on your last federal notice of assessment and in the CRA My Account service. Financial institutions are swamped in late February and a transfer can take a day or two to process, so aim for the week of February 22 rather than the very last day. You do not have to deduct your contribution in 2026: you can contribute before March 1, 2027 and carry the deduction forward to a year when your income, and therefore your tax saving, will be higher. To decide whether to deduct now or later, compare your estimated taxable income with our Quebec income tax calculator and read our guide on RRSP or FHSA.
Do self-employed workers have until June 15, 2027 to pay everything?
No: June 15, 2027 moves only the filing of the returns, not the payment. If you or your spouse ran a business, you have until Tuesday, June 15, 2027 to file your federal and Quebec returns, but any tax balance must be paid no later than April 30, 2027. After that date, interest is charged on the unpaid balance, even if your return is not due yet.
The classic trap is waiting until June to figure out your balance, then discovering interest that has been running since May 1. Estimate your balance in March, pay a careful estimate on April 30, then adjust it with your June return. If your income varies, the instalments due March 15, June 15, September 15 and December 15 exist precisely to spread that payment out: our article on tax instalments in Quebec explains who is required to pay them and how they are calculated.
What happens if a deadline falls on a weekend?
The deadline then moves to the next business day, at both the Canada Revenue Agency and Revenu Québec. In 2027, this comes up as early as February: February 28 falls on a Sunday, so employers have until Monday, March 1, 2027 to issue T4 slips and RL-1 slips. The other major dates in 2027 fall on weekdays, with no extension.
That is exactly what happened last year with the RRSP: March 1, 2026 was a Sunday, and the contribution deadline for 2025 moved to Monday, March 2, 2026. In 2027, April 30 is a Friday and June 15 is a Tuesday, so do not count on any extra time. Also allow for your financial institution's processing times: an online payment made on the evening of April 30 can be dated the next business day.
When will you receive your T4 and RL-1 slips?
Your employer must give you your federal T4 slip and your Quebec RL-1 slip no later than the last day of February, which in practice means Monday, March 1, 2027, since February 28 is a Sunday. Most employees receive them earlier, often through the employer's payroll portal by mid-February, and investment income slips such as the T5 and RL-3 arrive around the same time.
If by mid-March you still have nothing, contact your employer instead of waiting: filing without a slip almost always leads to a notice of reassessment. In the meantime, you can check whether the gross pay on your last December pay stub roughly matches your annual salary with our Quebec pay calculator. Then keep all your slips and receipts: Revenu Québec generally has three years from your notice of assessment to review your return.
How much does filing late cost, in real terms, on a $3,000 balance?
More, and faster, than most people think. The late-filing penalty is 5% of the unpaid balance, plus 1% for each full month you are late, up to a maximum of 12 months, and it applies separately at the federal level and in Quebec. On a $3,000 balance owed to a single administration, filing three months late costs $240 in penalties, before the interest charged every day on the balance.
| Item | Calculation | Amount |
|---|---|---|
| Base penalty | 5% × $3,000 | $150 |
| Additional penalty, 3 full months | 1% × $3,000 × 3 | $90 |
| Total after 3 months late | $150 + $90 | $240 |
| Total after 12 months late | 5% + (1% × 12) = 17% | $510 |
Interest is added on top: the Canada Revenue Agency charges compound daily interest starting the day after the payment deadline, and Revenu Québec also charges interest on any balance unpaid after April 30. The cheapest reflex is to file on time even if you cannot pay in full. With no late filing, there is no 5% and 1%-per-month penalty; only interest runs on what remains owing.
Which year-end 2026 dates should you settle before 2027 even starts?
Two dates arrive before the 2027 calendar. December 1, 2026 is the last day to apply for the advance payment of the home buyers' tax credit for access to home ownership, which can reach $5,875, if you bought a first home in 2026 and paid your welcome tax. And December 31, 2026 closes the year for opening an FHSA: your $8,000 per year of contribution room only starts in the year you open the account.
After December 1, 2026, the home access credit does not disappear: you will claim it in your 2026 tax return in spring 2027 instead of as an advance payment through Revenu Québec's My Account service. For the FHSA, opening your account in December 2026 rather than January 2027 gives you one extra full year of room to carry forward. Check how much you can contribute with our FHSA calculator and, if you are preparing a first purchase in 2027, take a look at our comparison of real estate books for buying in Quebec to show up ready at the notary.
Frequently asked questions
What is the deadline to file taxes in Quebec in 2027?
For the 2026 tax year, the deadline is Friday, April 30, 2027 for most individuals: it is the same day to file both the federal and the Quebec return and to pay any balance owing. If you or your spouse ran a business, filing moves to June 15, 2027, but payment is still due April 30. RRSP contributions, for their part, must be made no later than March 1, 2027.
Do I have to pay my tax balance by April 30, 2027 even if I am self-employed?
Yes. The June 15, 2027 extension granted to self-employed workers and their spouses covers filing the returns only, never the payment. Any federal or Quebec tax balance must be paid no later than April 30, 2027. Starting May 1, interest is charged every day on the unpaid balance, even if your return is only filed in June. Pay a careful estimate on April 30, then adjust in June.
What happens if I file late but I am expecting a refund?
The late-filing penalty is calculated on the unpaid balance: if you owe nothing, there is no 5% penalty and no 1% per month, federally or in Quebec. Filing still matters, because your refund and several credits, such as the solidarity tax credit and the Canada Child Benefit, depend on a filed return. Being late therefore directly delays money that is coming back to you.
Can I contribute to my RRSP on March 2, 2027 to cut my 2026 taxes?
No. The contribution period for the 2026 tax year ends on the 60th day of 2027, which is Monday, March 1, 2027. Since March 1 is a Monday, there is no move to the next business day this year. A contribution made on March 2, 2027 will count toward your 2027 contributions and can be deducted in your 2027 return at the earliest. Contribute during the week of February 22 to avoid end-of-month bank delays.
When will I receive my tax refund after I file?
Revenu Québec starts processing returns in early March and aims to issue a refund or a notice of assessment in about 14 days for a return filed online, compared with 28 days by mail. If you file after March 31, wait four weeks before calling to ask about its status. Federal processing follows a similar calendar, but the two refunds arrive separately, on different dates.
Are the 2027 tax instalments mandatory for everyone?
No. Tax instalments apply only to people whose estimated net tax owing exceeds the set threshold and who had a large balance to pay in one of the two previous years, for example many self-employed workers, investors and retirees without enough withholding. The 2027 dates are March 15, June 15, September 15 and December 15. If you receive an instalment reminder from the Canada Revenue Agency or Revenu Québec, pay each level of government separately, to the right administration.