Final Return Deadline When a Self-Employed Person Dies in Canada

When someone who ran a business dies, the person handling their affairs often has a lot to sort out at once. One question comes up early: when does the final income tax return have to be filed, and when does any tax have to be paid?

For self-employed people, the CRA sets a different filing date than the one that applies to most people. The payment date, however, works differently. This article explains both, along with penalties, interest and the options that can help.

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

The special filing deadline for self-employed people

The extended deadline applies if the deceased was self-employed, or if their spouse or common-law partner who was living with them ran a business on the date of death. The date depends on when the death happened.

For comparison, without a business the final return for a death between January 1 and October 31 is due April 30 of the following year, and for a death between November 1 and December 31 it is due 6 months after the date of death.

The payment date does not move

This is the point people most often miss. Even with the June 15 filing date, the payment date for a self-employed person's final return is not extended. The CRA says the payment due date does not change, and you may need to pay before you file to avoid interest.

For a death from January 1 to October 31, that means any balance owing is due April 30 of the following year. Interest is compounded daily on unpaid amounts from the day after the due date until they are paid, and interest also applies to late-filing penalties. If you cannot calculate the exact tax yet, paying a reasonable estimate by the payment date can limit interest. Any overpayment is generally refunded once the return is assessed.

Exceptions and timing details

• The extension is not available where the 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 it is received or postmarked by the next business day.
• A payment is on time if it is received on the first business day after the due date.
• If the person died early in the year before filing the prior-year return, a different rule can apply, and two returns may be needed. In the 2026 example, a death on or before the 2025 filing due date with the 2025 return unfiled makes that return due 6 months after death.

Any earlier-year return that was already due keeps its original filing and payment dates, and a legal representative must make sure unfiled earlier returns are filed.

The optional Return for a Partner or Proprietor

Where a business's short fiscal period ends because of the death, the legal representative may elect to leave that business income off the final return and file an additional return as though for a separate person. This is marked "150(4)" and is one of the optional returns, which are not required and may reduce or eliminate tax.

Form T1139 Part 3 (alternative method, death of a proprietor) covers businesses with a non-December 31 year-end, and the due dates are the same as for the final return. When you split claims between the final and optional returns, the total cannot be more than would have been allowed on the final return alone. Whether this election helps depends on the facts, so an accountant can confirm.

Late filing, penalties and relief

A late final return with a balance owing carries a penalty of 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 in any of the 3 previous years. Filing on time avoids the penalty even if you cannot pay in full.

The CRA may cancel penalties or interest if a late filing was caused by circumstances beyond your control, and you ask through its cancel or waive penalties and interest process. In some situations it may also allow a late election affecting a final return.

What to do next

• Confirm the date of death and whether the deceased or a cohabiting spouse or partner ran a business.
• Notify the CRA of your role as legal representative before you ask to see tax records.
• Note both dates: the filing date and the payment date, which is not extended for a self-employed person.
• Gather business records, T-slips and any unfiled earlier-year returns.
• Estimate the tax and pay by the payment date if you can.
• Talk to an accountant or lawyer about whether the optional proprietor return makes sense.

Frequently asked questions