My WSIB Claim Was Denied. What Do I Do Now?

Getting a letter from the Workplace Safety and Insurance Board (WSIB) saying your claim has been denied can feel overwhelming, frustrating, and even frightening. Many injured workers immediately worry:

  • Did I do something wrong?
  • Does this mean I get nothing?
  • What am I supposed to do now?

 If your WSIB claim was denied, you are not out of options. In fact, denied claims are far more common than most people realize — and many denials can be successfully challenged.

At the Institute for Injured Workers, we help injured workers across Ontario understand why their claims were denied and what steps they can take next.


First: Take a Breath — A Denial Is Not the End

A WSIB denial does not mean:

  • You are lying
  • Your injury isn’t real
  • You’ll never receive benefits

It simply means the WSIB has decided — based on the information they reviewed — that they are not accepting responsibility right now. That decision can often be challenged.


Common Reasons WSIB Claims Are Denied

Understanding why the WSIB denied your claim is the first step in deciding what to do next. Some common reasons include:

1. WSIB Says the Injury Is Not Work‑Related

The WSIB may decide your injury didn’t happen at work or wasn’t caused by your job duties — especially with repetitive strain, gradual onset, or aggravation injuries.

2. Lack of Medical Evidence

If WSIB feels the medical information doesn’t clearly connect your injury to your work, they may deny the claim — even if you are genuinely hurt.

3. Reporting Delays

If there was a delay in reporting the injury to your employer, doctor, or the WSIB, this can raise “credibility concerns” in WSIB’s eyes.

4. Employer Disputes the Claim

Sometimes employers tell the WSIB they don’t believe the injury happened at work or that modified duties were available, which can influence WSIB’s decision.

5. Pre‑Existing Conditions

The WSIB may argue your condition existed before the workplace incident and was not significantly aggravated by work.


Step One: Read the Decision Letter Carefully

WSIB denial letters can be confusing and full of technical language. Still, it’s important to look for:

  • The exact reason for the denial
  • The date of the decision
  • Information about your appeal (objection) rights

Deadlines matter. In most cases, you only have six months to object to a WSIB decision. However, in some cases it is only 30 days.


Step Two: Do Not Assume the WSIB Is Right

Many injured workers assume WSIB decisions are final or automatic. They are not.

WSIB decisions are made by people reviewing paperwork — and paperwork is often incomplete, unclear, or missing critical medical and factual details.

Denials are frequently overturned when:

  • Proper medical evidence is submitted
  • The worker’s full job duties are explained
  • Inconsistencies or assumptions are challenged

Step Three: Get Advice Before You Appeal

While you can file an objection on your own, how you appeal matters just as much as whether you appeal.

A poorly prepared objection can:

  • Lock you into weak arguments
  • Miss important medical or legal issues
  • Make the appeal harder later at WSIAT

Speaking with a WSIB‑experienced legal professional early can help you:

  • Understand the strength of your case
  • Identify what evidence is missing
  • Avoid common mistakes

Step Four: Know That Help Is Available

WSIB law is complex and constantly changing. Injured workers are often dealing with pain, stress, and loss of income at the same time — which makes navigating the system even harder.

At the Institute for Injured Workers, we:

  • Focus exclusively on helping injured workers
  • Assist with denied claims and appeals
  • Explain your options in clear, plain language
  • Offer free consultations so you can understand where you stand

You Don’t Have to Face a WSIB Denial Alone

If your WSIB claim was denied, the most important thing is not to give up.

Many successful WSIB cases start with a denial — and turn around once the right evidence and arguments are presented.

📞 If you have questions about a denied WSIB claim, contact us at 1-866-WE-FIGHT for a free consultation. We’ll help you understand your rights and your next steps.


This article is for general information only and is not legal advice. Every WSIB claim is different.

Scroll to Top