Probate Tax in Ontario: Calculation, Exemptions, and Filing

Probate tax in Ontario, officially the Estate Administration Tax, is $15 for every $1,000 of estate value above $50,000. Estates worth $50,000 or less owe nothing. The tax is paid to the court as a deposit when the estate trustee applies for a Certificate of Appointment, and it applies to the gross value of the deceased’s probatable assets, reduced only by mortgages or other encumbrances registered against real property.¹

What Counts Toward the Estate’s Value

The statute defines the value of the estate as everything the deceased owned at death, less encumbrances registered against real property.² In practice, that pulls in Ontario real estate, vehicles, business interests, bank accounts without a surviving joint holder, investment portfolios without a named beneficiary, and personal property such as jewelry or art. Everything is valued at fair market value on the date of death, not the date you file. Real estate outside Ontario stays out of the calculation entirely, so a cottage in Quebec or a condo in Florida is not counted.³

Several categories of property transfer automatically on death and never enter the calculation:

Assets held in joint tenancy with right of survivorship, such as a jointly owned home or bank account, which pass to the surviving owner by operation of law.
Life insurance proceeds paid to a named beneficiary.
RRSPs, RRIFs, and TFSAs with a designated beneficiary or successor holder.
Assets already held in an inter vivos trust, because the deceased did not own them at death.

Naming beneficiaries on registered accounts is one of the simplest ways to shrink the probatable estate. A $500,000 RRSP with a named beneficiary never touches the tax calculation.

How Debts Affect the Number

General debts do not reduce the taxable estate. Credit card balances, personal loans, and car financing are all ignored when the value is calculated, even though the estate must ultimately pay them before distributing anything. The only debts that reduce the value are mortgages and other encumbrances registered directly against real property. A home worth $700,000 with a $250,000 registered mortgage enters the calculation at $450,000. An unsecured line of credit of $50,000 does nothing to lower the tax.²

How to Calculate the Tax

Subtract $50,000 from the estate’s value, divide the result by $1,000 (rounding any partial thousand up to the next full one), and multiply by $15.¹ An estate valued at $250,500 rounds to $251,000 before the formula applies.

Worked out at common estate sizes:

$50,000 or less: $0
$250,000: ($250,000 − $50,000) ÷ $1,000 × $15 = $3,000
$500,000: ($500,000 − $50,000) ÷ $1,000 × $15 = $6,750
$1,000,000: ($1,000,000 − $50,000) ÷ $1,000 × $15 = $14,250

A typical Ontario home worth $800,000 with a $300,000 registered mortgage enters the estate at $500,000, producing roughly $6,750 in tax before any other administration costs.²

Valuing Real Estate Correctly

The number you need is fair market value on the date of death, meaning what a knowledgeable buyer would pay a willing seller in an open transaction on that specific day.⁴ The Municipal Property Assessment Corporation (MPAC) figure that appears on property tax bills is not a reliable substitute. MPAC uses mass-appraisal methods that can lag the market by years, and neither the courts nor the Canada Revenue Agency accept MPAC values as estate valuations. For any property of significant value, a retrospective appraisal from a qualified appraiser, estimating what the property would have sold for on the date of death, is the safer approach.

When Probate Is Required at All

Not every estate needs a Certificate of Appointment. If real property is involved that does not automatically pass to a surviving joint owner, probate is almost always required. Financial institutions routinely demand the certificate before releasing bank accounts or investment holdings. Disputes over who should act as trustee, questions about the will’s validity, and beneficiaries who cannot legally consent also push an estate into the process.⁵

If every asset passes outside the estate through joint ownership, named beneficiaries, or a trust, you may not need the certificate and the tax never becomes payable. Most estates with meaningful assets still end up needing probate because at least one institution will insist on the court’s authorization.⁵

Small Estate Certificate

When the total value of the deceased’s assets is $150,000 or less, Ontario offers a streamlined Small Estate Certificate with simpler forms. The tax rules are the same, but the amounts involved are small: an estate of exactly $150,000 owes $1,500, and anything under $50,000 owes nothing. Applications can be filed by email, regular mail, or in person at the Superior Court of Justice.⁶

Ways to Reduce the Tax

Because the calculation looks only at assets that require probate, moving assets outside that pool reduces the tax. Two approaches are common.

The first is beneficiary designations. Naming a beneficiary on an RRSP, RRIF, TFSA, or life insurance policy sends those funds directly to the beneficiary and takes them out of the estate for probate purposes. Joint ownership with right of survivorship achieves a similar result for real estate and bank accounts, though it carries its own legal consequences that need thought before setting up.

The second is a dual-wills strategy, used most often by business owners. It involves two coordinated wills: a primary will covering assets that require probate, such as the house, bank accounts, and publicly traded investments, and a secondary will covering assets that can be transferred without a court certificate, such as shares in a private corporation. Private company shares typically transfer through the company’s own records and shareholder agreements, so no certificate is needed and no tax is owed on their value. A business owner holding $2 million in private company shares could save $30,000 in probate tax through a properly drafted secondary will. The two documents have to be carefully coordinated so they do not contradict or inadvertently revoke each other, which is not a project for a template.

Paying the Tax and Filing the Return

The tax is paid as a deposit when you file the application for the Certificate of Appointment. The court will not process the application until the full estimated amount is received.² Once the certificate is issued, the deposit becomes the tax; if the certificate is not granted, you can request a refund from the court where you filed.¹

After the certificate is issued, the estate trustee must file an Estate Information Return with the Ministry of Finance within 180 calendar days, listing every asset in the estate and its value. Filing is available online or by mail.⁷ If information later turns out to be wrong or incomplete, or new assets surface, an amended return is due within 60 calendar days of learning about it. When the amended figures raise the estate’s value, additional tax is owed on the difference. Records and supporting documents have to be kept for four years after the certificate is issued.¹

Audits and Penalties

The Ministry of Finance can assess or reassess an estate’s tax for up to four years after the tax became payable, and can inspect the estate’s records during that window. The four-year limit does not apply where the Ministry establishes that the required return was not filed, that a misrepresentation was made through carelessness or deliberate default, or that fraud was committed. In those cases the Ministry can reassess at any time it considers reasonable.⁴

Failing to file the Estate Information Return, or making false or misleading statements on it, is an offence. The penalty is a fine of at least $1,000, or up to twice the tax the estate owes if that amount is higher, imprisonment of up to two years, or both.⁸ An estate trustee who understates the valuation is personally exposed to consequences that can far exceed whatever the shortcut appeared to save.

1
Ontario.ca. Estate Administration Tax
2
Ontario.ca. Estate Administration Tax Act, 1998
3
Ontario.ca. Estates Act, RSO 1990, c E.21 – Section 32
4
Ontario.ca. Estate Administration Tax Act, 1998 – Section 4.5
5
Ontario.ca. Apply for Probate of an Estate
6
Ontario Court Forms. Estate Forms Under Rule 74, 74.1 and 75 of the Rules of Civil Procedure
7
Ministry of Finance. Guide Estate Information Return Estate Administration Tax Act, 1998
8
Ontario.ca. Estate Administration Tax Act, 1998 – Section 5.1