Penalties for Filing a Deceased Person's Final Return Late in Canada

If you are an executor and the filing deadline has passed, you are not alone, and it helps to know what happens next and what options may be open to you. The cost of delay grows over time, so it helps to understand how the penalty and interest work.

This article covers the penalty, interest, special cases and the relief the Canada Revenue Agency (CRA) may offer. It is general information, so a lawyer or accountant can confirm how it applies to your estate.

This article covers Canadian federal tax law, which applies in every province.

First, check the real deadline

Before assuming the return is late, confirm the date. If the person died between January 1 and October 31, the return and any balance owing are due April 30 of the following year. If death was between November 1 and December 31, the return is due 6 months after the date of death.

If the deceased was self-employed, or their spouse or common-law partner living with them ran a business on the date of death, the final return is due June 15 of the following year for a death between January 1 and December 15, or 6 months after death for a death between December 16 and December 31; the payment date is still not extended, and this extension is not available where business expenditures were mainly the cost of tax shelter investments. If a due date falls on a weekend or CRA-recognized holiday, a return is on time if received or postmarked by the next business day.

There is also a special case when death happens early in the year. If the person died in 2026 on or before the 2025 T1 filing due date and the 2025 return was not filed, the 2025 return and any balance owing are due 6 months after the date of death, and a single final 2026 return is also required, so two returns are needed. A surviving spouse's own 2025 return has the same filing due date, but any balance the survivor owes must still be paid by April 30, 2026 to avoid interest.

The late-filing penalty

For a late final return with a balance owing, the penalty is 5% of the balance plus 1% of the balance for each full month late, up to 12 months. The penalty may be higher if a late-filing penalty was assessed on the deceased's return for any of the 3 previous years.

Filing on time avoids the penalty even if the balance cannot be paid in full. If you cannot pay everything, file anyway and deal with payment separately.

A different rule applies to the estate's T3 return. A late T3 carries an alternative penalty of $25 per day even with no balance owing, with a minimum of $100 and a maximum of $2,500.

A T3 return is needed if the estate earns income after death or distributes property to beneficiaries, and it is due 90 days after the trust's tax year-end, or 90 days after final distribution if the trust ceases to exist.

Interest on unpaid amounts

Interest is compounded daily on unpaid amounts from the day after the due date until paid, and interest also applies to late-filing penalties. The payment date does not move even when the filing date does, so you may need to pay before filing to avoid interest.

Overpayments are generally refunded once the return is assessed. If you are unsure of the final amount, paying a reasonable estimate can limit interest.

Can the CRA cancel the penalty or interest?

Possibly. The CRA may cancel penalties or interest if a late filing was caused by circumstances beyond your control, and you request this through the CRA's cancel or waive penalties and interest process. Whether your situation qualifies depends on the facts, and nothing is guaranteed.

• Part of the tax, such as on a rights or things return, can be deferred with acceptable security and Form T2075, but interest still applies.
• In some situations the CRA may allow a late election affecting a final return.
• Instalments are not required after death, though instalments due but unpaid before death must be paid.

What to do next

• File the final return as soon as you can, since filing late is better than not filing and stops the penalty from growing.
• Pay what you can now to reduce daily compounding interest.
• Confirm no earlier return was missed, since the legal representative must make sure any unfiled return for a year before the death is filed, and prior-year returns already due keep their original filing and payment dates.
• Write down why the filing was late and keep supporting documents for a relief request.
• Hold off distributing estate property until you have a clearance certificate.

If you are unsure who the CRA recognizes as the legal representative, sort that out first. A final return can be filed before the estate is fully settled, since the CRA accepts a will naming an executor or a court appointment of a representative, and where none exists or the appointment is pending, Form RC552 lets a person manage CRA matters only. A lawyer or accountant can help you prepare a relief request.

If the CRA has not yet been told about the death, notify it as soon as possible by phoning Individual Tax Enquiries at 1-800-959-8281 or by mailing Form RC4111. When you send documents to show your role, the CRA asks for a death certificate or funeral director's statement of death and a legal document naming the executor, and each must show the deceased's SIN.

Frequently asked questions