Estate Tax Calculator Ontario: Estimating Tax Owed at Death

People often search for an estate tax calculator expecting one number. In Ontario there is no single tax with that name. Instead, a death can trigger several separate taxes, and each is worked out in a different way.

This article explains which taxes make up the total, what drives each one, and how to build a rough estimate. It is a guide to how the pieces fit, not a substitute for the actual returns.

The three parts of an estate's tax bill

An estimate is easier if you split it into three parts. Each part has its own rules and its own paperwork.

• Income tax on the final T1 return, which reports income and property gains up to the date of death.
• Income tax on what the estate earns or realizes after death, reported on a T3 return.
• Ontario's Estate Administration Tax, which is tied to probate.

The estate's assets pay these amounts, and the legal representative is usually the executor named in the will.

Part 1: Tax on the final return

The Canada Revenue Agency treats a deceased person as having sold all their property just before death, even if nothing was actually sold. The deemed proceeds are the fair market value at that time. Only the taxable portion of a capital gain is included in income, and the inclusion rate is one-half.

For an unmatured RRSP, the full fair market value of the plan is treated as received and is included in income on the final return. Unpaid periodic amounts such as interest or rent accrue up to the date of death and go on the same return.

To estimate the tax, add up the income, the taxable part of the gains and any RRSP amount, then apply the rates for the year of death. The 2026 federal rates are below.

Ontario tax is added on top. The 2026 Ontario rates are 5.05% up to $53,891, 9.15% to $107,785, 11.16% to $150,000, 12.16% to $220,000 and 13.16% above $220,000. Ontario income tax also includes a surtax and the Ontario Health Premium, so bracket rates alone will understate the tax.

Exceptions that can lower the estimate

Several rules can change the numbers a lot, so check whether any apply before relying on a rough total.

• Property that passes to a surviving spouse, common-law partner or qualifying spousal trust can roll over at the deceased's adjusted cost base rather than fair market value, if it vests in the recipient within 36 months after death.
• A home designated as a principal residence can shelter its gain, but the designation must still be made on the final return.
• If all of an RRSP goes directly to a surviving spouse's or common-law partner's own registered plan within the time allowed, no T4RSP is issued in the deceased's name.
• TFSA value is not reported as income on the final return.
• The legal representative can elect to pay tax from deemed dispositions in up to 10 equal annual instalments, with acceptable security.

Parts 2 and 3: The estate's own tax and Estate Administration Tax

After death, growth belongs to the estate. If the estate sells the home or other property, the gain is generally the sale price minus the fair market value reported on the final return, plus disposition costs. Income allocated to beneficiaries is generally taxed in their hands, and income the estate keeps is taxed in the estate.

Estate Administration Tax is charged on the estate's value when an estate certificate is applied for, and the estate pays it, not the representative. For certificates applied for on or after January 1, 2020, there is no tax on estates worth $50,000 or less, and $15 for each $1,000 or part of $1,000 over $50,000, with the value rounded up to the nearest thousand. For example, a $240,000 estate pays $2,850.

The value leaves out jointly owned assets that pass automatically to the surviving owner, real estate outside Ontario, CPP death benefits, and RPPs, RRSPs, RRIFs or TFSAs with a beneficiary designation. Mortgages on included Ontario real estate can be deducted, but funeral expenses, lawyer fees and credit card debt cannot.

What to do next

• List every asset with its value at the date of death.
• Note which assets have a named beneficiary or pass to a spouse or common-law partner.
• Gather information on registered plans such as RRSPs and RRIFs.
• Ask an accountant to run the final return numbers using the rates for the year of death.
• Confirm with a lawyer which assets count toward Estate Administration Tax.

Before distributing anything to beneficiaries, the legal representative must obtain a clearance certificate from the Minister, and distributing without one can make the representative personally liable for unpaid amounts up to the value distributed.

Frequently asked questions