Tax Tip: The RRSP Deadline for 2026 Is March 1, 2027 — Not December 31
The single most misunderstood date in Canadian tax: RRSP contributions made in the first 60 days of 2027 still count toward your 2026 tax year. For 2026, that 60th day lands on Monday, March 1, 2027 — no weekend extension applies. A $5,000 contribution made on February 20, 2027 can still cut your 2026 tax bill.
How to do it
- Find your deduction limit. Check your latest Notice of Assessment or CRA My Account. For 2026 the cap is 18% of your 2025 earned income, up to $33,810, minus any pension adjustment, plus unused room carried forward.
- Contribute by March 1, 2027. Anything contributed between January 1, 2026 and March 1, 2027 can be deducted on the 2026 return you file by April 30, 2027.
- Know that contributing and deducting are separate. You can contribute now and deliberately carry the deduction forward to a future year when your income (and tax rate) is higher. Just report the contribution on Schedule 7 either way.
- Mind spousal RRSPs too. The same March 1, 2027 deadline applies, and contributions to a spousal RRSP in 2027 can trigger attribution rules — worth a second look before you contribute.
Watch out
- Overcontributions cost 1% per month. You get a $2,000 lifetime buffer; beyond that, the excess is taxed at 1% per month until withdrawn or absorbed by new room.
- March 2 is too late. A contribution on March 2, 2027 belongs to the 2027 tax year. It still grows tax-free inside the RRSP — you just don't get the 2026 deduction.
- The deadline that fell in 2026 was for 2025. March 2, 2026 was the 2025 deadline. Don't confuse the two years.
- You need earned income to create room. No 2025 earned income means no new 2026 room (though old unused room still carries forward).
Frequently asked questions
I missed the deadline. Is my contribution wasted?
No. It counts toward 2027 instead. You lose only the timing of the deduction, not the contribution room or the tax-sheltered growth.
Can I contribute in December 2026 and deduct it in 2027?
Yes. Contributions made during the calendar year can be deducted in that year or carried forward. The 60-day rule only extends the window into the next year; it doesn't force you to claim immediately.
Does the deadline move if March 1 falls on a weekend?
Yes — if the 60th day lands on a Saturday or Sunday, the deadline shifts to the next business day. For 2026 it lands on a Monday, so March 1, 2027 stands as is.
Sources
- National Bank – RRSP contribution deadline: https://www.nbc.ca/personal/savings-investments/rrsp/deadlines.html
- Fidelity Canada – 2026 RRSP contribution limit: https://www.fidelity.ca/en/insights/articles/rrsp-contribution-limit/
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