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How to Amend an Estate Information Return Filed With Errors

Found an omitted or wrong-valued asset after filing? See when an Ontario executor must amend the Estate Information Return and how extra tax is handled.

Wills & Estates5 min readTSLBy the Treadstone Law Team · OntarioUpdated October 28, 2026
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Key takeaways
  • An amended return is generally needed when an estimated value is replaced by an actual one, when errors are found, or when new assets turn up.
  • The Ministry's page gives 60 calendar days for amended returns, counted from a trigger that depends on the reason.
  • Revised returns are not required for errors discovered after the fourth anniversary of the day the tax became payable.
  • Failing to file as required or making false or misleading statements can lead to a fine of at least $1,000 or imprisonment.

You filed the Estate Information Return, and then you find something wrong. Maybe a bank account was left off, a house was valued too low, or you used an estimate and now have the real number. Many executors face this, and the law has a process for fixing it.

This article explains when a corrected return is needed, the deadlines the Ministry lists, what the revised return should contain and how additional tax fits in. Your facts matter, so a lawyer or accountant should confirm how this applies to your estate.

When an amended return is needed

The initial Estate Information Return is due within 180 calendar days after the estate certificate is issued, even if the estate value is $0. An amended return deals with what you learn after that. The Ministry lists three main situations.

An omitted account and a mis-valued house usually fall under the second situation. A forgotten asset that surfaces long after the estate was settled may fall under the third.

Deadlines for amending

The Ministry's page sets out different starting points for the 60-day period, depending on why you are amending. Because deadlines can be updated, confirm the current period before you rely on it.

ReasonDeadline listed by the Ministry
Estimated value was used60 calendar days after the actual value is given to the court
Incorrect or incomplete information found within four years of the certificate being issued60 days of becoming aware of it
Newly found (subsequently discovered) assets60 calendar days after the statement is delivered to the court

There is also an outer limit. A revised return is not required for errors discovered after the fourth anniversary of the day the tax became payable. That does not mean the Ministry cannot look at the estate, as the next sections explain.

What the revised return should contain

A revised return is tied to specific events. For subsequently discovered property it follows delivery of a statement under the Estates Act, and revised returns are also connected to refunds, additional tax or a deposit paid, and fulfilling an undertaking.

Like the original, the return must list assets with values, tax owing or paid, the representatives, court file details and the certificate issue date. Assets held with an adviser, dealer or financial institution may be reported as account-level totals. A return is treated as given to the Minister on the day the Minister receives it, so allow time for delivery and keep proof.

Values are measured at the date of death. The return reports the total value of real property and personal property the deceased owned at death. When you correct a figure, use the date-of-death value, not the current value.

Paying additional tax and the risks of waiting

For applications made on or after January 1, 2020, there is no tax on an estate worth $50,000 or less. Above that, the tax is $15 for every $1,000 (or part) of estate value, rounded up to the nearest thousand. If a correction raises the estate value, more tax may be owing. If the application was made before 2020, different rates apply.

The Ministry may assess or reassess the tax within four years after the day it was due, which is the day the certificate was issued. There is no time limit where a filing was missed or a misrepresentation was made. If you disagree with an assessment, a Notice of Objection must be filed within 180 days of the Notice of Assessment. A refund request must be made within 12 years of the certificate's issue date or within 2 years of a Notice of Assessment.

Penalties are serious. Failing to file as required or making false or misleading statements can bring a fine of at least $1,000 and up to twice the tax payable, up to two years' imprisonment, or both. Correcting a known error promptly is far better than leaving it.

What to do next

If the error is large, the estate is being distributed, or the Ministry has already contacted you, get advice before filing. Beneficiaries may also need to be told, since extra tax reduces what the estate has to distribute.

Frequently asked questions

What is the deadline to amend an Estate Information Return?

The Ministry's page gives 60 days, counted from when the actual value is given to the court, from when you become aware of an error, or from delivery of the statement for newly found assets. Confirm the current period with a lawyer before relying on it.

Do I have to amend if I find the error many years later?

A revised return is not required for errors discovered after the fourth anniversary of the day the tax became payable. However, there is no time limit for reassessment where a filing was missed or a misrepresentation was made, so get advice.

Can I report bank accounts as one total?

Assets held with an adviser, dealer or financial institution may be reported as account-level totals. Keep the statements that support those totals for four years.

What if the correction means I overpaid?

Refund requests must be made within 12 years of the certificate's issue date or within 2 years of a Notice of Assessment. A revised return is also tied to refunds.

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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