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Estate Administration Tax and the Spouse's Estate After a Second Death

Inherited everything from your spouse? Learn how Ontario estate administration tax applies to your own estate later, what counts, and what to plan for.

Wills & Estates4 min readTSLBy the Treadstone Law Team · OntarioUpdated October 28, 2026
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Key takeaways
  • Estate administration tax is payable by the estate when an estate certificate is issued, so it is worked out for each person's estate separately.
  • The tax is based on the value of what the deceased owned at death, reduced only by encumbrances on real property.
  • Jointly owned assets that pass automatically, and registered plans with a named beneficiary, are excluded from the estate value.
  • How your assets are held when you die drives the result, so planning questions are worth raising with a lawyer or accountant.

If you inherited everything from your spouse, it is natural to wonder whether the same assets will be taxed again when you die. Many surviving spouses worry that the home, the investments and the savings will each be hit twice.

This article explains how Ontario's estate administration tax is triggered, what is counted in an estate, and which questions to raise when you plan. It describes general rules only. What you own and how it is held at your death will decide the real answer.

How the tax is triggered each time

Estate administration tax is payable to the Crown in right of Ontario by the estate, immediately upon the issuance of an estate certificate. An estate certificate includes a certificate of appointment of estate trustee, and that includes a small estate certificate.

That wording matters for a second death. The tax is tied to the certificate issued for one person's estate and is calculated on the value of that estate. When your estate trustee later applies for a certificate for your estate, the value that counts is the property that belonged to you at the time of your death.

Whether any particular planning step is available to you depends on the facts, and a lawyer or accountant can confirm it.

What counts in your estate and what does not

The value of the estate is the value disclosed to the court, less the actual value of encumbrances on real property. Ontario's guidance sets out what is included and excluded.

Generally includedGenerally excluded
Ontario real estate, less mortgages or liens, at appraised value at date of deathJointly owned assets that pass automatically to the other owner or owners
Bank accounts, including foreign banks, and investments including TFSAs, RRSPs and RRIFsRRSPs, RRIFs, TFSAs and RPPs with a beneficiary designation
Vehicles and vessels wherever locatedReal estate outside Ontario
Business interests and insurance proceeds payable to the estateAssets owned before death but not at death

Registered plans are counted where there is no beneficiary designation, for example where they are payable to the estate. With a designated beneficiary they are excluded.

This is why a surviving spouse's situation is different from the first death. After the first death, assets may have moved into your name alone, and anything you now own outright and without a designation is part of what your estate will be measured on.

What the tax could look like on your estate

For applications made on or after January 1, 2020, an estate valued at $50,000 or less is exempt, and above that the tax is $15 for each $1,000, or part of $1,000, of the value that exceeds $50,000. Values are rounded up to the nearest $1,000 before calculating.

Estate valueTax
$50,000$0
$250,000$3,000
$500,000$6,750
$750,000$10,500
$1,000,000$14,250

Only encumbrances on real property reduce the value. Funeral expenses, lawyer fees, loans, credit card debt and real estate commissions cannot be deducted. The tax is paid by the estate, not personally by the estate trustee.

Planning questions to raise

Because the tax follows what is in your estate at death, the useful conversation is about how assets are held and who they pass to. The answers depend on your family, your accounts and your wishes, and some choices have tax or family-law consequences beyond this article.

Be careful with do-it-yourself changes. Adding a child to a bank account or home, for example, can raise questions about control, creditors and fairness among your children. Ask a lawyer before you change how anything is held.

What to do next

Frequently asked questions

Will my estate pay tax on the same assets my spouse's estate did?

The tax is payable by each estate when its certificate is issued, and it is based on what that person owned at death. Whatever you own at your death, including assets that came from your spouse, is measured at that time. The details depend on how those assets are held.

Are jointly owned assets taxed?

Jointly owned assets that pass automatically to the other owner or owners are excluded from the estate value. Property you hold in another person's name can be included, so how title is held matters.

Do I need a certificate for my estate at all?

Ontario says an estate normally must be probated if assets are held by a financial institution, and that you should confirm with the institution. There is no dollar threshold set in Ontario's guidance, so it depends on the institution.

Is there still a tax on estates under $50,000?

No tax is payable on an estate of $50,000 or less for applications on or after January 1, 2020. The Estate Information Return is still required even then.

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. 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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