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CASL Penalties: What Happens If an Ontario Business Gets a CRTC Complaint

Learn how a CASL complaint moves through the CRTC's enforcement process and what an Ontario business can realistically expect to happen next.

Corporate5 min readTSLBy the Treadstone Law team · OntarioUpdated 2026-07
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Key takeaways
  • CASL enforcement is not handled by a single body.
  • Recipients of unwanted commercial messages can report them, and a pattern of complaints about a particular sender is generally what draws regulatory attention — a single complaint rarely…
  • Depending on what an investigation finds, outcomes can range widely in seriousness: - No action, where the business's practices turn out to be compliant or the issue is resolved informally.

Getting a letter or a call about a complaint under Canada's Anti-Spam Legislation, known as CASL, is unsettling — in part because most businesses have never seen the enforcement process up close and do not know what actually happens next.

This article walks through how a CASL complaint typically moves through the system, who the players are, and what is realistically at stake for an Ontario business.

Who Enforces CASL

CASL enforcement is not handled by a single body. The Canadian Radio-television and Telecommunications Commission, or CRTC, is the regulator most associated with day-to-day CASL enforcement around unsolicited commercial messages, but the Competition Bureau and the federal Privacy Commissioner can also become involved depending on what a complaint actually alleges. Misleading representations, for example, or unauthorized collection of contact information, raise issues closer to those other regulators' mandates.

How a Complaint Becomes an Investigation

Recipients of unwanted commercial messages can report them, and a pattern of complaints about a particular sender is generally what draws regulatory attention — a single complaint rarely triggers a full investigation on its own. From there, the CRTC can open an investigation, which typically involves requesting information and records from the business about its consent practices, message content, and sending practices before reaching any conclusion.

What the CRTC Can Actually Do

Depending on what an investigation finds, outcomes can range widely in seriousness:

The specific dollar amounts a notice of violation can carry are set out in the legislation and its regulations, and can be substantial. Confirm the current figures directly with current CRTC guidance or legal counsel rather than assume a number, since the amount at stake varies with the nature and history of the violation.

Factors That Affect the Outcome

How to Respond If You Are Contacted

  1. Do not ignore it. A non-response tends to make a routine inquiry worse, not make it go away.
  2. Preserve your records. Consent documentation, email templates, and sending logs are exactly what an investigation will ask about.
  3. Get legal advice before you respond substantively. What you say in an initial response can shape the rest of the process.
  4. Use the moment to audit your broader practices, not just the specific complaint — a single complaint often points to a wider gap.

Frequently asked questions

Does one complaint mean my business is in serious trouble?

Not necessarily. A single complaint is common and often resolves informally or with no action, but it is still worth taking seriously and using as a prompt to review your practices.

Can an individual employee be personally liable, or is it only the business?

CASL's enforcement framework can, in some circumstances, reach individuals involved in directing or approving non-compliant conduct, not only the corporate entity — a reason for owners and managers to take compliance personally, not just delegate it.

How long do CASL investigations typically take?

This varies considerably depending on the complexity of the complaint and the business's cooperation, and there is no fixed public timeline. Do not assume a quick resolution.

Should we respond to the CRTC ourselves or involve a lawyer immediately?

Getting legal advice before you respond substantively is generally the safer path, even for what seems like a minor inquiry, because early responses can become part of the record the regulator relies on later.

If we fix the problem right away, does the complaint just go away?

Fixing the underlying practice is always worth doing regardless of how the complaint plays out, and genuine, prompt corrective action is generally viewed favourably. It does not automatically end an investigation that is already underway, but it is far better than doing nothing while a file is open.

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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