Year-End Tax Planning Canada 2026: 12 Moves to Make Before December 31

Most Canadians know the RRSP deadline is sometime in late February or early March. Fewer realize that at least a dozen tax moves have a hard December 31 cutoff, and that for many of them the trade has to be placed days earlier because of T+1 settlement. Here is the checklist, grouped by who it applies to, with the exact drop-dead date for each item.

The two deadlines that get confused

RRSP contributions for the 2026 tax year are due by Monday, March 2, 2027 (the first business day after 60 days from year-end). Almost every other calendar-year tax action is due by Wednesday, December 31, 2026. Mixing those up is the single most expensive mistake in year-end planning, because missing December 31 means losing deductions, credits, or grant top-ups that cannot be reclaimed in the new year.

Move 1: Tax-loss selling (last trade: Dec 30)

In a non-registered account, selling a position below its adjusted cost base crystallizes a capital loss. You can use the loss against capital gains in the same year, carry it back three years to recover tax already paid on gains in 2023, 2024, or 2025, or carry it forward indefinitely. Watch the superficial loss rule: if you (or your spouse, or a corporation you control) buy the same security within 30 days before or after the sale, the loss is denied and added to the new cost base instead. The common workaround is to swap into a similar but non-identical ETF (sell XIU, buy ZCN, or sell VFV, buy ZSP) and switch back after 30 days if you want.

If you have 2023 gains you paid tax on, a 2026 loss can refund that tax directly through a T1A loss carryback. For a 2026 Canadian equity position down 15% on $50,000, that is roughly $1,900 of tax recovered at a 25% marginal rate on the earlier gain. We cover the mechanics in our tax-loss harvesting Canada 2026 guide.

Move 2: FHSA contribution (deadline: Dec 31)

Unlike the RRSP, FHSA contributions do not get a 60-day grace period. If you want the $8,000 FHSA deduction on your 2026 return, the contribution has to settle in the FHSA by December 31. If you have carry-forward room from 2024 or 2025 you can contribute up to $16,000 or $24,000 in a single year, up to the lifetime $40,000 cap. The deduction can be used in 2026 or carried forward to a higher-income year, exactly like an RRSP deduction. Our FHSA guide walks through the stacking logic.

Move 3: RESP contribution (deadline: Dec 31)

The Canada Education Savings Grant pays 20% on the first $2,500 contributed per beneficiary per calendar year, up to $500 a year, and a lifetime max of $7,200 per child. Miss December 31 and that $500 of free government money is gone - you can only catch up one year of grant per year going forward, so the gap compounds. For children in lower-income households, additional CESG and the Canada Learning Bond add up to $100 per year on the first $500. See our RESP guide for the full stacking rules.

Move 4: Charitable donations (receipted by Dec 31)

Only donations receipted on or before December 31, 2026 qualify for a 2026 federal credit. A couple can combine donations on one return to clear the $200 bracket boundary (above which the federal credit rate jumps from 15% to 29%, plus provincial top-up). Donating appreciated securities in-kind is the most tax-efficient option in a non-registered account - the capital gain on the transferred shares is sheltered entirely, and you still receive a donation receipt for the full fair market value. The securities transfer takes 5 to 10 business days, so initiate it by mid-December if you want the receipt dated 2026.

Move 5: Medical expense bundling (12-month claim period)

You can claim medical expenses for any 12-month period ending in 2026, so if you have a procedure, dental work, or prescription you were going to put off until January, moving it into December may unlock the credit. The federal threshold is the lesser of 3% of net income or $2,834 for 2026. The spouse with lower net income should normally claim all family medical expenses because of that 3% floor. If you had a big medical year ending in June 2026, you can still claim July 2025 to June 2026 - run the math both ways.

Move 6: TFSA withdrawals (restored room: Jan 1, 2027)

Any TFSA withdrawal you need before mid-2027 should ideally happen on or before December 31, 2026, not January 1, 2027. The reason: TFSA withdrawals are added back to your contribution room on January 1 of the following year. A $50,000 withdrawal on December 31, 2026 restores $50,000 of room on January 1, 2027. The same withdrawal on January 1, 2027 does not restore any room until January 1, 2028, meaning you lose a full year of flexibility and compounding capacity on the restored room. See our TFSA withdrawal rules post for examples.

Move 7: Capital gains realization in a low-income year

If 2026 is unusually low income for you - mat leave, between jobs, early retirement before CPP starts, a sabbatical - realizing capital gains at a 50% inclusion rate while in the lowest federal and provincial brackets may be worth more than deferring them. In the lowest Ontario combined bracket, half of a $20,000 gain adds $10,000 to income, which taxes at roughly 20%, for a $2,000 total tax bill. The same gain realized at a 40% marginal rate costs twice as much. If you plan to hold the position long term, you can even repurchase it immediately - the superficial loss rule only applies to losses, not gains.

Move 8: Pension income splitting setup

If one spouse is receiving eligible pension income (defined-benefit pension, RRIF withdrawals after age 65), up to 50% of it can be shifted to the lower-earning spouse's return. The election is made at tax time, not at year end, but your December 31 position - RRIF vs RRSP, age at year-end, pension sources - determines what qualifies. If you turned 65 during 2026 and have an RRSP you have not converted yet, think about whether a partial RRIF conversion in December opens up splitting for the 2026 return. Converting a small portion of your RRSP to a RRIF before year-end lets you draw a small eligible-pension amount and claim the $2,000 federal pension credit.

Move 9: Prescribed-rate loan interest payments

If you set up a prescribed-rate spousal or family trust loan, interest for the 2026 calendar year must be paid in cash by January 30, 2027, not left as an accrual. Missing that deadline makes CRA treat all the loan's historical income as attribution income - usually catastrophic. Confirm with the borrower today that the January 30 interest payment is calendared. If you have been meaning to set up a prescribed-rate loan but have not, you missed the ultra-low rates of 2022, but the current prescribed rate is still competitive against most family investment income.

Move 10: Business owner salary/dividend/bonus decision

If you own a CCPC, the decision to pay yourself a December bonus (deductible in 2026 if paid or accrued by year-end), a January dividend, or next year's regular salary has to be made in December. A declared bonus must be paid within 180 days to retain the current-year deduction. If 2026 was a strong year inside the corporation, a bonus down to the small-business-deduction limit, combined with topping up your RRSP for 2027 with the new earned income, can be worth tens of thousands of tax deferred versus pushing earnings into next year as a dividend. Talk to your corporate accountant before December 20.

Move 11: Review installment payments for 2026

If CRA sent you installment reminders in 2026 and you did not pay them (or underpaid), the arrears interest clock keeps running. The December 15 installment is the last chance to top up before the final 2026 catch-up. Interest on short installments is non-deductible and compounds daily - typically 8 to 10%. If you are short, a December 15 top-up stops the clock on four months of 2026 interest.

Move 12: RRSP top-up before you turn 71

The year you turn 71, your RRSP must be converted to a RRIF or annuity by December 31. If 2026 is that year, this is your last chance ever to contribute to your own RRSP. Any unused contribution room, plus the 2026 contribution room earned from 2025 earnings, can be used in December. You can also still make a spousal RRSP contribution for a younger spouse up until the year they turn 71 - a powerful last-year lever for retirees with a younger partner.

The master timeline

What you can safely leave for March

RRSP contributions are the main one - you have until March 2, 2027. Everything else on this list hardens on December 31 or earlier. If cash is tight in December, the right prioritization is usually: top up FHSA first (deduction expires), capture missing CESG next (free 20% match), bundle large charitable donations next (bracket boundary), and then use any remaining capacity for tax-loss selling or capital gains realization. RRSP is last because you have two more months.

Frequently asked questions