WSIB Claim Denied? 7 Steps to Get the Help You Need

If your WSIB claim was denied, you are not alone, and you are not out of options. Every year, the Workplace Safety and Insurance Board denies an estimated 17,500 to 18,750 claims in Ontario. That means thousands of injured workers receive a letter telling them they will not get the benefits they need to recover and support their families.

The good news? A denial is not the final word. Ontario's workers' compensation system has a structured appeals process, and with the right help, many denied claims are successfully overturned. This guide walks you through exactly what to do after a WSIB claim denial, the deadlines you must meet, and how to connect with experienced representatives who can fight for your benefits.

Need WSIB claim denied help right now? Browse verified WSIB lawyers and paralegals on ClaimIt. Every representative offers a free consultation, and most work on contingency, so you pay nothing unless you win.

Why Do WSIB Claims Get Denied?

Understanding why your claim was denied is the first step toward building a stronger case on appeal. WSIB denies claims for a range of reasons, but most fall into a few common categories.

The Most Common Reasons for WSIB Claim Denials

• Insufficient medical evidence: Your medical records did not clearly connect your injury or illness to your workplace. WSIB requires objective medical documentation showing a direct link between your condition and your job duties.
• Late reporting: You did not report the injury to your employer or file your claim within the required timeframes. Delays raise questions about whether the injury is work-related.
• Pre-existing conditions: WSIB determined that your symptoms are related to a condition you had before the workplace incident, not to the incident itself.
• Disputed work-relatedness: Your employer challenged the claim, arguing that the injury did not happen at work or during work duties.
• Incomplete paperwork: Missing forms, unsigned documents, or incomplete information caused processing issues that led to denial.
• Inconsistent statements: Differences between what you told your doctor, your employer, and WSIB raised credibility concerns.

Many of these denial reasons can be addressed with better documentation, additional medical opinions, or professional legal support. A denial does not mean your claim lacks merit. It often means the evidence package needs strengthening.

For a deeper look at the top denial reasons and how to avoid them, read our guide on the top reasons WSIB claims get denied in Ontario.

7 Steps to Take After Your WSIB Claim Is Denied

When you receive a denial letter, time is critical. Here is a clear, step-by-step plan to protect your rights and build the strongest possible case.

Step 1: Read Your Denial Letter Carefully

Your denial letter explains exactly why WSIB rejected your claim. It identifies the decision-maker, the policy sections they relied on, and the evidence (or lack of evidence) behind the decision. Read every word. Highlight the specific reasons for denial, because your entire appeal strategy will focus on addressing those points.

Keep the letter in a safe place. You will need the decision-maker's name and the date of the decision for the next steps.

Step 2: Note Your Deadlines Immediately

WSIB appeals have strict deadlines, and missing them can cost you your right to challenge the decision.

Key WSIB Appeal Deadlines

- Reconsideration request: No formal deadline, but act quickly. Contact the decision-maker as soon as possible after receiving your letter.- Intent to Object (formal internal appeal): Submit within 30 days of the decision. WSIB prefers you use the official Intent to Object form (PDF), but a written letter also works.- WSIAT external appeal: File within 6 months of the final internal decision from the Appeals Resolution Officer.- Internal reconsideration of ARO decision: Request within 2 years of the Appeals Resolution Officer's decision, but only if you have new evidence or can show an error in law.

Write these dates on your calendar immediately. If you are unsure about a deadline, a free consultation with a WSIB representative can clarify your timeline at no cost.

Step 3: Gather Stronger Medical Evidence

Medical evidence is the backbone of almost every successful WSIB appeal. If your claim was denied due to insufficient medical documentation, you need to fill those gaps.

• Request a detailed medical report from your treating physician that specifically connects your diagnosis to your workplace duties or incident.
• Get a specialist opinion if your family doctor's report was not enough. An orthopedic surgeon, neurologist, or psychiatrist can provide the objective evidence WSIB looks for.
• Document your functional limitations with a Functional Abilities Form or similar assessment showing how your injury affects your daily life and ability to work.
• Collect workplace records such as incident reports, witness statements, job descriptions, and any communications with your employer about the injury.

Step 4: Request a Reconsideration First

Before starting a formal appeal, contact the decision-maker named in your denial letter and ask them to reconsider. This is the fastest path to a reversal.

Explain why you disagree with the decision and provide any new medical evidence or documentation you have gathered. The decision-maker will review your new information, and this step generally takes about 14 business days.

If the reconsideration is successful, your claim can be approved without going through the full appeals process. If it is not successful, you still have the right to file a formal appeal.

Step 5: File Your Intent to Object

If the reconsideration does not resolve your case, submit an Intent to Object form to WSIB within 30 days. This triggers the formal internal appeal process.

In your objection, clearly state:

• Which decision you are objecting to and the date it was made
• Why you believe the decision is wrong
• What outcome you are seeking
• Any new evidence or arguments that support your position

After you submit your objection, WSIB will assign an Appeals Resolution Officer (ARO) to review your case. The ARO may resolve your appeal through a written review or schedule an oral hearing. For a complete breakdown of the appeal steps, see our guide to the WSIB appeal process in Ontario.

Step 6: Prepare for Your Hearing

If your appeal goes to an oral hearing, the Appeals Resolution Officer will listen to your case, ask questions, and make a final internal decision. You will testify under oath.

Preparation is everything at this stage:

• Organize all your medical records, workplace documents, and correspondence with WSIB in chronological order.
• Prepare a clear, honest account of how your injury happened and how it has affected your life.
• Anticipate questions about gaps in treatment, pre-existing conditions, or inconsistencies in the record.
• If you have a representative, they can present your case, cross-examine witnesses, and make legal arguments on your behalf.

In most cases, the ARO will mail you the decision within 30 calendar days of the hearing.

Step 7: Appeal to WSIAT If Necessary

If the Appeals Resolution Officer upholds the denial, you can take your case to the Workplace Safety and Insurance Appeals Tribunal (WSIAT). This is the external and final level of appeal for WSIB decisions.

WSIAT is an independent tribunal, separate from WSIB. It conducts its own review of your case and can overturn WSIB decisions. You have 6 months from the ARO's decision to file your WSIAT appeal.

At this level, professional representation becomes especially important. WSIAT hearings are more formal, and having a lawyer or paralegal who understands tribunal procedures and WSIB policy can significantly affect the outcome. Learn more in our guide on finding a WSIAT appeal paralegal in Ontario.

Ready to fight your denied claim? Submit your case details through ClaimIt's free intake form and get connected with a verified WSIB representative who can assess your appeal options at no upfront cost.

Why You Should Not Fight a WSIB Denial Alone

The WSIB appeals system is complex, and the stakes are high. Here is why getting professional WSIB claim denied help matters.

The Numbers Tell the Story

Research shows that self-represented claimants have significantly lower success rates in workers' compensation disputes. At Ontario's Licence Appeal Tribunal, which handles accident benefit disputes, full success rates for applicants dropped from 33% in 2017 to just 8% in 2024. Self-represented applicants fare even worse, with success rates far below those who have professional representation.

While WSIB internal appeals are a different process from LAT hearings, the pattern is clear: navigating complex administrative systems without experienced help puts you at a serious disadvantage.

What a WSIB Lawyer or Paralegal Does for You

• Identifies the weaknesses in your original claim and develops a strategy to address each denial reason.
• Gathers and organizes medical evidence to build the strongest possible case.
• Handles all WSIB paperwork and communications so you can focus on your recovery.
• Represents you at hearings with knowledge of WSIB policies, procedures, and precedent decisions.
• Protects your deadlines to ensure you never lose appeal rights due to a missed date.

Most WSIB lawyers and paralegals on ClaimIt work on a contingency basis, typically charging 30% of the settlement only if they win your case. That means you pay nothing upfront and nothing at all if your appeal is unsuccessful. Explore your options by browsing ClaimIt's directory of verified WSIB representatives.

What Kind of WSIB Claims Can Be Appealed?

Nearly every type of WSIB decision can be challenged through the appeals process. Common appealable decisions include:

• Initial claim denials: WSIB rejected your claim entirely, stating the injury is not work-related.
• Benefit terminations: Your Loss of Earnings (LOE) or other benefits were cut off before you recovered.
• Deeming decisions: WSIB determined you could work a "suitable" job and reduced your benefits, even though you cannot actually perform that work.
• Non-Economic Loss (NEL) assessments: You believe your permanent impairment was rated too low, reducing your compensation. Read about the WSIB NEL assessment process for more details.
• Return-to-work disputes: Your employer is not accommodating your restrictions, or WSIB is pressuring you back to work before you are medically ready.
• Occupational disease claims: Your illness was caused by workplace exposure but WSIB does not recognize the connection.
• Survivor benefit denials: A family member's claim for survivor benefits after a workplace fatality was rejected. See our guide on appealing denied WSIB survivor benefits.

How ClaimIt Connects You With WSIB Claim Denied Help

ClaimIt is a free platform built specifically to help injured workers in Ontario find experienced WSIB legal representation. Here is how it works:

1. Browse verified representatives: View profiles of 14+ WSIB lawyers and paralegals, including their years of experience, number of cases handled, and fee structures. Visit the representative directory to start comparing.
2. Choose your representative: Select the professional whose experience matches your situation and click "Choose" on their profile.
3. Submit your case: Complete a quick intake form about your WSIB claim so the representative can assess your case.
4. Get connected: Your chosen representative reviews your information and reaches out to discuss your options, including a free consultation.

Every representative on ClaimIt is verified with the Law Society of Ontario and specializes in WSIB claims. Many are former WSIB insiders with 25 to 45 years of experience navigating the system from the inside. That means they understand exactly how decisions are made and what it takes to get them reversed.

Frequently Asked Questions About WSIB Claim Denials

How long do I have to appeal a denied WSIB claim?

You have 30 days from the date of the decision to submit an Intent to Object for a formal internal appeal. If the internal appeal is unsuccessful, you have 6 months to file an external appeal with the Workplace Safety and Insurance Appeals Tribunal (WSIAT). Act quickly, because gathering evidence and preparing your case takes time.

Can I appeal a WSIB decision without a lawyer?

Yes, you can represent yourself at every stage of the appeals process. However, self-represented claimants typically have lower success rates. An experienced WSIB lawyer or paralegal understands the policies, knows what evidence WSIB needs, and can present your case effectively. Most representatives on ClaimIt work on contingency, so there is no upfront cost.

How much does it cost to appeal a WSIB claim?

Filing an appeal with WSIB or WSIAT is free. There are no government filing fees. If you hire a lawyer or paralegal, most work on a contingency fee basis of around 30%, meaning they only get paid if you win. You can learn more about WSIB lawyer costs in Ontario in our detailed breakdown.

What happens if my WSIB appeal is denied?

If your internal appeal is denied by the Appeals Resolution Officer, you can escalate to WSIAT. If WSIAT also denies your appeal, you may request judicial review by the Divisional Court on questions of law, though this is rare. You can also request an internal reconsideration of the ARO's decision within 2 years if you have new evidence or can demonstrate an error in law.

What evidence do I need for a WSIB appeal?

The most important evidence is detailed medical documentation linking your injury directly to your workplace. This includes medical reports from your treating physician, specialist opinions, diagnostic imaging, functional abilities assessments, and workplace records such as incident reports and witness statements. A WSIB representative can help you identify exactly what evidence is missing and how to obtain it.

How long does the WSIB appeal process take?

A reconsideration request typically takes about 14 business days. The formal internal appeal process varies, but oral hearings are usually scheduled within 90 calendar days of your appeal being registered. The ARO typically issues a decision within 30 calendar days of the hearing. A WSIAT appeal can take several additional months. For a detailed timeline breakdown, see our WSIAT appeal timeline guide.