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Tax Filing Considerations for a Surviving Spouse in Ontario

Learn what changes on a surviving spouse’s own tax return in Ontario the year their partner dies, separate from the deceased’s terminal return.

Tax5 min readTSLBy the Treadstone Law team · OntarioUpdated 2026-07
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Key takeaways
  • The CRA needs to be told about the death and about the surviving spouse’s resulting change in marital status.
  • Certain registered accounts, such as RRSPs and RRIFs, can generally roll over to a surviving spouse on a tax-deferred basis where the necessary beneficiary designations or estate…

When a spouse or common-law partner dies, an estate trustee usually focuses on the deceased’s final return and any estate filings. But the surviving spouse’s own tax return changes too, in ways that are easy to overlook in the middle of everything else that comes with a loss.

This guide covers what’s different on the surviving spouse’s own return the year their partner dies — separate from the deceased’s terminal return and any ongoing estate trust filings, which are their own topic.

Two Returns, Not One — Sometimes Three

It helps to keep these distinct: the deceased’s terminal return, covering income up to the date of death; any ongoing trust return for the estate itself, if the estate continues to earn income; and the surviving spouse’s own personal return, filed as usual for their own income. This guide focuses on the third one.

Notifying the CRA

The CRA needs to be told about the death and about the surviving spouse’s resulting change in marital status. This is generally handled as part of settling the estate, but it directly affects the surviving spouse’s own benefit calculations going forward, moving from a combined family-income basis back to an individual one.

What Can Transfer to You Tax-Deferred

Certain registered accounts, such as RRSPs and RRIFs, can generally roll over to a surviving spouse on a tax-deferred basis where the necessary beneficiary designations or estate arrangements are in place, rather than being fully taxed in the deceased’s hands immediately. Whether a specific account qualifies, and how to elect for the rollover, depends on the account type and paperwork — this is worth confirming with an accountant or the plan administrator rather than assuming it applies automatically.

Property that passes to a surviving spouse, including a jointly held home, can also be treated differently than property passing to other beneficiaries. Get advice specific to what’s actually in the estate.

Pension Income Splitting Ends

If the couple had been splitting eligible pension income for tax purposes, that option ends with the death of one spouse for future years. The surviving spouse’s own pension income, going forward, is reported and taxed as their own.

Credits and Benefits You Should Revisit

Timing Your Own Filing

The surviving spouse’s own return is generally still due on their normal filing deadline as an individual taxpayer, separately from whatever deadline applies to the deceased’s terminal return. Don’t assume the two run on the same clock — confirm both deadlines rather than treating the estate’s timeline as your own.

A Few Things Not to Overlook

Frequently asked questions

Do I file my own tax return differently in the year my spouse died?

You still file your own individual return as usual, but you’ll update your marital status, and certain benefit calculations and credits will reflect the change partway through the year.

Is the deceased’s terminal return the same as my own return?

No. The terminal return reports the deceased’s income up to the date of death and is generally handled by the estate trustee; your own return reports your own income for the full year, separately.

Can I still claim pension income splitting for the year my spouse passed away?

This depends on the specific timing and type of pension income involved. Because the rules around income splitting in the year of death are technical, confirm your situation with an accountant rather than assuming either way.

What if I don’t know what registered accounts my spouse held?

This is common. The estate trustee, working through the estate administration process, should be able to identify the accounts and their beneficiary designations, which will clarify what can pass to you directly.

This article is general information, not legal advice. Reading it does not create a lawyer-client relationship. Ontario 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 licensed Ontario lawyer. Treadstone Law is licensed by the Law Society of Ontario — reach us at 1-844-900-1070 or start a file online.

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