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Filing an Amended Estate Information Return in Ontario

Found new assets or a valuation error after filing? Learn when and how an estate trustee must correct the Estate Information Return in Ontario, and the risks.

Wills & Estates4 min readTSLBy the Treadstone Law Team · OntarioUpdated November 13, 2026
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Key takeaways
  • If you find new assets, or learn the return was incorrect or incomplete, you must file an amended Estate Information Return within 60 days of becoming aware of it.
  • Any extra tax is payable once the return is amended.
  • Failing to file or making false or misleading statements can bring a fine of at least $1,000 and up to twice the tax payable, and possibly imprisonment.

Estate trustees sometimes learn after filing that the return was wrong. An old account may turn up, or a value you reported may turn out to be off.

This article explains when an amended Estate Information Return is required, how the deadline works, how values should be supported, and what happens if you do not correct it. A lawyer or accountant can confirm the details for your estate.

What the original return covers

The estate representative must file an Estate Information Return with the Ministry of Finance within 180 calendar days after the estate certificate is issued. It lists each asset and its value on the date of death, and it must be filed even if the estate value is $0.

Some certificates need no return at all, including a Certificate of Appointment of Estate Trustee During Litigation and a certificate for a succeeding estate trustee.

When you must amend and by when

If the representative finds new assets, or learns the return was incorrect or incomplete, they must file an amended Estate Information Return within 60 days of becoming aware of it. Any extra tax is then payable.

Records must be kept for four years. Keep the documents behind every value you report.

Getting the values and inclusions right

Assets are valued at fair market value on the date of death. Real estate is valued at its appraised value on the date of death, even if it later sells for more or less. Values must be supported by documents such as account statements or an appraiser's opinion, and a professional appraiser may be needed for complex assets such as a business.

A later sale price therefore does not by itself change the reported value of a property. Only mortgages, liens and similar encumbrances on real property can be deducted, and only from that property's value. Funeral expenses, legal fees, credit card debt and similar costs cannot be deducted.

ItemCounted in estate value?
Jointly held assets that pass automatically to the other ownerNo
Registered plans with a beneficiary designation or declarationNo
Real estate outside OntarioNo
Registered plans with no designationYes

Risks of not correcting the return

A 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 by the estate. They may also face up to two years' imprisonment, or both.

The Ministry of Finance may assess or reassess the tax within four years after it became due, which is the day the certificate was issued. It may reassess at any time if a return was not filed or if there was misrepresentation or fraud. A Notice of Objection must be filed within 180 days of a Notice of Assessment.

What to do next

If you overpaid, a refund is possible only if the return was filed within four years of the certificate, and you must ask the Ministry of Finance within 12 years of the certificate or within 2 years of a Notice of Assessment. If the estate used the Small Estate Certificate process, that is a separate court step, and an Amended Small Estate Certificate is available only if the combined value stays at $150,000 or less.

Frequently asked questions

How long do I have to file an amended return?

You must file within 60 days of becoming aware of new assets or of an incorrect or incomplete return. Extra tax is then payable.

Is the deadline counted from the certificate date?

The original return is due within 180 calendar days after the estate certificate is issued. The amended return's period runs from when you become aware of the problem.

Does a later sale price change the reported value?

Real estate is valued at its appraised value on the date of death, even if it later sells for more or less. Values must be supported by documents.

What happens if I ignore a mistake?

A representative who fails to file or makes false or misleading statements may be fined at least $1,000 and up to twice the tax payable, and may face up to two years' imprisonment. The Ministry may also reassess at any time if there was misrepresentation or fraud.

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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