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Can Capital Losses on a Final Return Offset Other Income in Canada?

Learn how net capital losses can be used on a deceased person's final return in Canada, including offsetting other income and estate loss elections.

Tax5 min readTSLBy the Treadstone Law Team · CanadaUpdated November 1, 2026
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Key takeaways
  • In the year of death, net capital losses can offset income other than capital gains, which is not normally allowed in other years.
  • Unused net capital losses for all years that are not otherwise claimed may be deducted in the year of death.
  • A graduated rate estate may be able to push some of its own losses back to the final return, but only by election and within set limits.

When someone dies owning investments that have lost value, or after years of unused losses, the executor often asks whether those losses can be put to work. The final return has a special rule that is more generous than the one for ordinary years.

This article explains how that rule works, how estate losses can sometimes be carried back, and what to check before you file. It is general information, and the numbers in your situation call for a lawyer or accountant.

This article covers Canadian federal tax law, which applies in every province.

How losses arise on the final return

On death, the deceased is treated as having sold all capital property just before death, which can create a gain or a loss. The result is fair market value on the date of death minus adjusted cost base, reported on Schedule 3 and line 12700 of the final return. Where property is worth less than its cost, the result is a loss.

Whether your losses add up to a net capital loss depends on the figures for each property, so it is worth confirming with a lawyer or accountant. The year-of-death rules then decide where it can be used.

The special rule for the year of death

In the year of death, net capital losses on the final return and the prior year's return can offset income other than capital gains, which is not normally allowed in other years. That means they can reduce things like employment income, pension income or RRSP and RRIF income included on the final return, not just gains.

The Income Tax Act supports this by allowing unused net capital losses for all taxation years that are not otherwise claimed to be deducted in computing taxable income in the year of death, rather than only the usual carry-forward. Net capital losses of other years are claimed on line 25300 of the final return.

SituationOrdinary yearYear of death
Use against other incomeNot normally allowedAllowed on the final return and prior year's return
Losses from earlier yearsCarried forwardUnclaimed losses of all years may be deducted

The exact order and limits for applying losses can be technical, so have the figures checked before filing. The details depend on the facts.

Losses the estate realizes after death

Gains on property the estate sells after death are reported on the estate's T3 return, not on the final return. How an estate can use its own losses depends on the facts, so it is worth confirming with a lawyer or accountant.

There is an exception for a graduated rate estate. If it disposes of capital property in one of its first three taxation years and its capital losses exceed its gains, the legal representative may elect to treat part of the excess as the deceased's loss on the final return. The election is due by the estate's filing due date for that year, and the final return must be amended. Whether an estate qualifies as a graduated rate estate, and how much can be moved, is worth confirming with a professional.

How losses interact with other choices

A spousal rollover normally means property is transferred at its adjusted cost base, so no gain or loss arises at death. The legal representative can elect out of that rule, property by property, so that fair market value applies, which can be useful to use the deceased's losses, the capital gains deduction, or lower rates on the final return.

The capital gains deduction for qualifying shares or farm and fishing property is claimed on line 25400 using Form T657. Because losses, the deduction and elections can affect one another, they are best planned together rather than one at a time.

What to do next

For a death from January 1 to October 31, the balance owing and filing are due April 30 of the following year; for a death from November 1 to December 31, the return is due 6 months after the date of death. If the deceased, or a spouse or common-law partner living with them, carried on a business on the date of death, the filing due date is instead June 15 of the following year for deaths from January 1 to December 15, and 6 months after death for deaths from December 16 to December 31; the payment due date does not change.

A late return with a balance owing attracts a penalty of 5% of the balance plus 1% for each full month late, up to 12 months, and it can be higher if a late-filing penalty was assessed in any of the 3 previous years.

Frequently asked questions

Can capital losses reduce my late spouse's employment or pension income?

In the year of death, net capital losses on the final return and the prior year's return can offset income other than capital gains. This is not normally allowed in other years.

Where do older net capital losses go on the final return?

Net capital losses of other years are claimed on line 25300 of the final return. The Income Tax Act allows unused losses of all years that are not otherwise claimed to be deducted in the year of death.

Can the estate's later losses be used on the final return?

Sometimes. A graduated rate estate that sells capital property in one of its first three taxation years at a net loss may elect to treat part of the excess as the deceased's loss, and the final return must be amended.

Do I have to elect out of the spousal rollover to use losses?

Not always, but it can help. The legal representative can elect, property by property, that the rollover not apply, which can be useful to use the deceased's losses. A professional can model whether it is worthwhile.

Sources

Links go to official government, court and regulator pages. The law changes — confirm you are reading the current version.

This article is general information, not legal advice. Reading it does not create a lawyer-client relationship. Canadian laws, tax rates, and government programs change, and how the law applies depends on your specific facts. For advice about your situation, speak with a tax lawyer or accountant. Reach us at 1-844-900-1070 or send our Team a message.

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