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Ontario Estate Administration Tax Act Explained Simply

A plain-language summary of Ontario's Estate Administration Tax: when it applies, how it is calculated, the return you must file and the deadlines.

Wills & Estates4 min readTSLBy the Treadstone Law Team · OntarioUpdated November 13, 2026
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Key takeaways
  • The tax is only charged when an estate certificate (probate) is applied for and issued, and it is paid by the estate.
  • For applications on or after January 1, 2020, no tax is payable on an estate of $50,000 or less, and above that it is $15 for every $1,000 or part of $1,000 over $50,000.
  • The estate representative must file an Estate Information Return within 180 calendar days after the certificate is issued.

If you are handling an estate in Ontario, you may hear about a tax connected to probate. It is called the Estate Administration Tax, and it works differently from income tax or a tax on inheritances.

This article summarizes who the tax applies to, how it is calculated, what you must file afterward and what can happen if something is missed. For the exact wording of the Act, or if your situation is unusual, a lawyer or accountant can confirm the details.

When the tax applies

The tax is charged only when an estate certificate (probate) is applied for and issued. If no certificate is applied for or issued, no tax is owed.

The tax is paid as a deposit when the probate application is filed with the court. Once the certificate is issued, the deposit becomes the Estate Administration Tax. The estate pays the tax, not the estate representative personally.

How the tax is calculated

For estate certificates applied for on or after January 1, 2020, no tax is payable on an estate worth $50,000 or less. Above $50,000, the tax is $15 for every $1,000 (or part thereof) of the estate's value over $50,000. The estate's value is rounded up to the nearest thousand dollars.

Applications made before January 1, 2020 used older rates: $5 per $1,000 (or part thereof) on the first $50,000 and $15 per $1,000 on the amount above that.

Small estates, valued at $150,000 or less since April 1, 2021, still pay tax on the value over $50,000, up to the $150,000 cap.

Filing the Estate Information Return

The estate representative must file an Estate Information Return with the Ministry of Finance within 180 calendar days after the estate certificate is issued. This is required even when the estate is worth $50,000 or less and no tax is owed. If the deadline falls on a weekend or holiday, it moves to the next business day.

Filing online is recommended, but the return can also be filed by mail, courier, fax or in person. Keep the records supporting the return for four years at your principal place of business or residence.

Certificates with no tax or no return

No tax is payable on a Certificate of Appointment of Succeeding Estate Trustee (with a will, with a will limited to the assets referred to in the will, or without a will). The same applies to a Certificate of Appointment of Estate Trustee During Litigation. No Estate Information Return is required for those certificates.

Penalties, reassessment and next steps

An estate representative who fails to file the return, or who makes false or misleading statements, may be fined at least $1,000 and up to twice the tax payable, imprisoned for up to two years, or both. The Ministry of Finance may assess or reassess the tax within four years after the day it was due. If a return was late or a misrepresentation was made, there is no four-year limit. To dispute an assessment, a Notice of Objection must be filed within 180 days from the day the Notice of Assessment was issued.

Frequently asked questions

Do I owe the tax if I never apply for probate?

No. The tax is charged only when an estate certificate is applied for and issued. Whether probate is needed in your case is worth confirming with a lawyer.

Who pays the Estate Administration Tax?

The estate pays it, not the estate representative personally. It is paid as a deposit when the application is filed.

Do I still file a return if the estate is under $50,000?

Yes. The estate must still file an Estate Information Return after the certificate is issued, even though no tax is owed.

Can I get a refund of the tax?

Deposit refunds are requested from the Superior Court of Justice, and only if no certificate has been issued. Refunds of tax already paid are requested from the Ministry of Finance.

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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