The Different Types of CRA Penalties, Explained

Not every CRA penalty means the same thing. Some are automatic and apply the moment a deadline passes; others require the CRA to show a pattern of conduct or a level of carelessness before they attach. Lumping them together — as many people do when a notice of assessment arrives with an unfamiliar amount added on — makes it harder to know whether the penalty is routine, disputable, or a sign of a bigger problem.

This guide walks through the main types of CRA penalties Ontarians encounter, in roughly increasing order of severity, and what each one actually requires the CRA to prove.

1. Late-Filing and Failure-to-File Penalties

The most common penalty simply attaches when a return is filed after its due date and there is tax owing. It does not require any finding of dishonesty or carelessness — it applies automatically based on how late the return is and, for repeat late filers, can be calculated more steeply than for a first-time occurrence. Exact percentages and formulas change, so check the current CRA penalty schedule before assuming what you owe.

This penalty is easy to avoid. File on time even if you cannot pay in full — the late-filing penalty is tied to filing late, not to paying late, and the two carry different consequences.

2. Late-Payment and Instalment Penalties

Separate from filing, the CRA charges interest (and, in some cases, penalties) when tax owing isn't paid by the deadline, or when required quarterly instalments aren't made or are underpaid. Interest accrues at the CRA's prescribed rate, which is set and updated regularly — confirm the current quarterly rate before estimating what you owe, since it changes from one quarter to the next.

3. Repeated Failure to Report Income

If you fail to report an amount of income on your return and had already failed to report income in a prior year within a defined lookback period, a repeated-failure penalty can apply on top of the tax owing on the unreported amount. This penalty does not require proof of intent — an honest omission that happens to repeat a prior year's omission can still trigger it, which is part of why several small oversights over multiple years can add up faster than people expect.

4. The Gross Negligence Penalty

This is the most serious penalty available on the civil (non-criminal) side. It applies where a taxpayer knowingly, or in circumstances amounting to gross negligence, makes a false statement or omission on a return.

• How it's calculated: 50% of the tax understated (or credit overstated) that is attributable to the false statement or omission, with a minimum penalty of $100 — as of mid-2026; verify the current figures before relying on them.
• Who has to prove what: Unlike an ordinary reassessment, where the taxpayer generally bears the burden of showing the CRA is wrong, for a gross negligence penalty the CRA (the Minister) bears the burden of justifying the penalty.
• Not the same as tax evasion. Gross negligence is a civil finding on the balance of probabilities. Criminal tax evasion is a separate track requiring proof beyond a reasonable doubt of intentional deception, and can involve prosecution rather than a monetary penalty alone.

5. Director's Liability for Unremitted Amounts

This one applies to corporations, but personally to their directors. If a corporation fails to remit source deductions (income tax, CPP, EI withheld from employees' pay) or collected GST/HST, directors can become personally liable for those unremitted amounts — commonly called director's liability. This is a distinct exposure from the corporation's own penalties and is a common trap when a struggling business falls behind on remittances while continuing to pay other expenses.

How the Penalties Compare

Can a Penalty Be Reduced or Cancelled?

Two main avenues exist, and both are discretionary — the CRA decides case by case and can refuse or only partially grant a request:

• Taxpayer relief (Income Tax Act s.220(3.1)): The CRA can waive or cancel penalties and interest in specific circumstances, generally reaching back only a limited number of years from when the request is made — the exact lookback window should be confirmed against current CRA guidance, as it is measured differently for penalties than for interest.
• Voluntary Disclosures Program (VDP): If you come forward before the CRA catches the issue, the VDP can offer significant penalty relief and partial interest relief, though the amount of relief depends on whether your application is "unprompted" or "prompted" by prior CRA contact. The VDP never eliminates the underlying tax owing — only penalties and, partially, interest.

Neither program guarantees relief. Both require a complete, accurate application, and the CRA can refuse a request it considers doesn't meet the criteria.

Frequently asked questions