CRA Gross Negligence Penalty: What CRA Must Prove in Canada

A notice of reassessment arrives with a large penalty on it, and the CRA calls it a gross negligence penalty. It can feel like an accusation, and the amount can be much larger than the tax itself. The first thing to know is that a penalty is not final just because it appears on a notice.

This article explains in plain terms what the penalty is, who has to prove what, and how the dispute process works. It is general information about federal tax law in Canada, not advice on your file, so a lawyer or accountant should look at the details of your situation.

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

What the penalty is and how it is calculated

Under s. 163(2) of the Income Tax Act, a person who knowingly, or under circumstances amounting to gross negligence, makes or takes part in a false statement or omission in a return can be penalized. The penalty is the greater of $100 and 50% of the total of the amounts calculated under paragraphs (a) to (i) of that subsection.

Because the penalty can be 50% of that total, it can be large. What those paragraphs add up to on your notice is worth confirming with a lawyer or accountant. Interest on unpaid amounts runs at the prescribed rate for as long as they are outstanding.

A different rule applies to false renunciation statements. For those, the penalty is 25% of the excess of the renounced amount over the amount the corporation was entitled to renounce.

What the CRA has to prove

In an appeal involving a penalty under s. 163, the burden of establishing the facts that justify the penalty is on the Minister. That matters. How that burden plays out in your case depends on your situation, so it is worth confirming with a lawyer. The CRA has to show the facts that support the penalty.

The penalty speaks of a false statement or omission made knowingly or in circumstances amounting to gross negligence. Where a particular error falls on that line is a legal question that turns on the facts, and it is one to review with a lawyer or accountant. Honest mistakes, reliance on a preparer and poor record keeping can all look different when the facts are laid out.

• What exactly was false or left out of the return
• Who prepared the return and what information they were given
• Whether the error was a one-time slip or a pattern
• What records exist to show how the figures were arrived at

How to dispute the penalty

The main route is a notice of objection. An individual who is not a trust must serve it by the later of one year after the filing-due date and 90 days after the notice of assessment was sent. Other taxpayers have 90 days after the notice was sent.

After an objection, the Minister must reconsider the assessment and vacate, confirm or vary it, or reassess, and then notify you in writing. If a reassessment follows your objection, you can appeal without serving a new notice of objection.

If you still disagree, you may appeal to the Tax Court of Canada once the Minister confirms or reassesses, or after 90 days pass with no decision. The appeal must be filed within 90 days of the notice of confirmation or reassessment.

Before going that far, you can contact the auditor and, if that does not resolve it, the auditor's team leader. The auditor can also estimate any amount owing before a notice is issued, which may help limit interest.

Collection, interest and the Tax Court procedure

For most assessments, the CRA may not start court proceedings, certify the debt or take listed collection steps until 90 days after the notice of assessment was sent. If you file an objection, collection of the disputed amount is barred until 90 days after notice of the Minister's confirmation or variation. If you file an appeal, it is barred until the Tax Court's decision is mailed or the appeal is discontinued.

Interest still runs on unpaid amounts in the meantime. The Taxpayer Bill of Rights says you can avoid paying personal tax amounts in dispute until an impartial review, but interest still accrues and undisputed amounts must be paid, and the Bill is a set of principles rather than directly enforceable rights. The prescribed rate on overdue income tax for 1 October to 31 December 2026 is 7%, and rates are set quarterly.

What to do next

• Write down the date on the notice of assessment and calendar your objection deadline right away; for an individual who is not a trust it is the later of one year after the filing-due date and 90 days after the notice was sent
• Gather the return, working papers, slips, receipts and any emails with your preparer
• Ask the CRA for the reasons behind the penalty in writing
• Decide whether to pay the undisputed amount now to limit interest
• Consider a representative of your choice, though you remain legally responsible
• Speak to a lawyer or accountant before you serve the objection

Penalty relief is a separate path. The CRA may cancel or waive penalties and interest, and a penalty relief request generally must be made within 10 years of the end of the calendar year of the tax year. A relief decision has no right of objection or appeal, so many people raise the objection first and consider relief alongside it.

Frequently asked questions