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№ 22 Wills & Estates

Reduce Tax on a Deceased Person's Final Return in Ontario

Lawful ways an Ontario executor may lower the tax on a final return, from spousal rollovers and optional returns to losses and paying in instalments.

Wills & Estates4 min readTSLBy the Treadstone Law Team · OntarioUpdated November 13, 2026
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Key takeaways
  • Tax at death mostly arises because the person is treated as having sold their capital property just before death.
  • Spousal rollovers, optional returns and loss claims are among the tools that may reduce the bill.
  • Tax from deemed dispositions can in some cases be paid in up to 10 annual instalments if security is given.

A large final tax bill often surprises families. It usually comes from deemed sales of property and from registered plans being included in income, not from an inheritance tax on the people who receive the assets.

There are lawful ways to lessen or spread the bill. Which ones apply depends on who inherits what, so this article gives an overview to discuss with an accountant.

Why the bill can be large

A person is deemed to have disposed of each capital property immediately before death at its fair market value. This applies even if nothing was actually sold, and it covers real estate, investments and personal belongings. Only the taxable portion of a capital gain is included in income, and the inclusion rate is one-half.

For an unmatured RRSP, the deceased is treated as having received the fair market value of all property in the plan, and that amount is included in income on the final return.

Transfers to a spouse or common-law partner

Property that passes to a spouse, a common-law partner or a qualifying spousal trust generally rolls over at the deceased's adjusted cost base instead of fair market value. It must vest indefeasibly in the recipient within 36 months after death, and the Minister can extend that period.

The legal representative can elect, one property at a time, not to use the rollover, which can be useful to realize gains or losses on the final return.

AssetPossible treatment
RRSP to survivor's RRSP, RRIF, PRPP, SPP or eligible annuityNo T4RSP in the deceased's name if all property goes there before the end of the year after death
RRIFSurvivor can become successor annuitant, so the full value is not taxed on the final return
TFSASurvivor named successor holder takes ownership; growth stays sheltered
Financially dependent child or grandchild with impairmentPayments can roll over to an RDSP if dependent because of impairment

Homes, farms and losses

The principal residence must still be designated on the final return, using Schedule 3 and Form T1255, even if the exemption covers the whole gain. If the home passes to a surviving spouse or common-law partner, no deemed disposition or gain has to be reported. Qualified farm or fishing property transferred to a child is a separate exception that can affect the gain.

Net capital losses for the year of death and the year before can be deducted from income other than capital gains on the final return. The legal representative can also elect to treat certain losses of a graduated rate estate as losses of the deceased.

Optional returns, instalments and gifts

What to do next

Filing late brings a penalty of 5% of the balance owing, plus 1% for each full month late, up to 12 months.

Frequently asked questions

Does Ontario have an inheritance tax?

Tax at death arises mainly through the deemed disposition of property and income inclusion of RRSPs and RRIFs. Ontario also charges Estate Administration Tax on probated estates.

Can I choose not to use the spousal rollover?

Yes, the legal representative can elect this one property at a time on the return for the year of death.

Can the tax be paid over time?

For tax from deemed dispositions, the legal representative can elect to pay in up to 10 equal annual instalments, with security acceptable to the Minister.

Who pays the tax?

Balances owing to CRA are paid out of the estate's assets.

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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