If you suffer a rotator cuff tear or shoulder impingement at work in Ontario, WSIB generally covers your medical treatment and pays 85% of your lost net earnings. However, under Bill 105 (introduced in April 2026), the government has proposed increasing Loss of Earnings (LOE) benefits to 90% for new claims. You must file a Form 6 within six months of the injury or repetitive strain onset.
Construction workers, warehouse staff, and tradespeople in Ontario constantly perform heavy, repetitive overhead lifting. Over time, this physical strain can lead to severe shoulder injuries, such as rotator cuff tears and impingement syndrome. These injuries can make it completely impossible to perform your regular duties safely.
Navigating the Workplace Safety and Insurance Board (WSIB) for shoulder injuries can be tricky. WSIB easily accepts acute injuries, like falling off a ladder or tripping on a job site. However, claiming a repetitive strain injury requires solid medical evidence connecting your daily job tasks to the shoulder damage. Typically, WSIB pays 85% of your lost net earnings while you recover. Note that under the proposed Protecting Ontario’s Workers and Economic Resilience Act, 2026 (Bill 105), introduced in April 2026, the government plans to increase Loss of Earnings (LOE) benefits to 90% of a worker’s take-home pay for new claims on a go-forward basis. Working with a local legal representative or union representative can help you build a strong case and protect your financial stability. 📋
Step-by-Step Process in Ontario
Whether you work on a job site in Toronto, Hamilton, or Sudbury, the process for reporting a workplace injury remains the same across the province. Here is how you establish a WSIB claim for a shoulder injury.
Step 1: Seek Medical Attention and Get a Diagnosis
Your health comes first. Visit a doctor, physiotherapist, or local hospital immediately. Be extremely clear that your shoulder pain is work-related. The doctor will fill out a Form 8 (Health Professional’s Report) and send it directly to WSIB. An ultrasound or MRI is usually required to officially diagnose a rotator cuff tear or severe impingement. 🏥
Step 2: Report the Injury to Your Employer
You must inform your supervisor or human resources department as soon as you feel the shoulder pain. If your employer realizes you need medical care or time off work, they are legally required to submit a Form 7 (Employer’s Report of Injury/Disease) to WSIB within three business days.
Step 3: File Your Form 6
Do not rely solely on your employer to handle the paperwork. You must complete a Form 6 (Worker’s Report of Injury/Disease) yourself. For repetitive strain injuries, you must detail your daily physical tasks, such as how many times an hour you lift heavy materials overhead. You have exactly six months from the date of the accident or the date you were diagnosed to file this form. 📝
Step 4: Establish the Work Connection
If your claim is for gradual onset (repetitive strain), WSIB will assign an adjudicator. They will look closely at the biomechanics of your job. You may need to provide a detailed job description or even a video of your workstation. Your doctor must explicitly state that your rotator cuff tear is highly likely caused by your specific employment duties rather than age-related degeneration.
Step 5: Follow Return to Work (RTW) Protocols
While recovering, you have a legal duty to co-operate in a Return to Work plan. If your doctor clears you for modified duties, such as one-armed desk work or sweeping, your employer should offer you suitable work. Refusing suitable modified duties without a valid medical reason can result in WSIB cutting off your Loss of Earnings (LOE) benefits. 🤝
How Much Does it Cost in Ontario?
Filing a WSIB claim is completely free for workers in Ontario. However, if your claim is denied, you may choose to hire a paralegal or lawyer to appeal the decision. Here are the potential costs you might encounter: 💵
| Expense Type | Estimated Cost (CAD) |
|---|---|
| Filing WSIB Claim (Form 6) | $0 |
| Medical Treatments (Physio/Surgery) | Covered by WSIB (if approved) |
| Paralegal/Lawyer Appeal Fees | 15% – 30% of back-pay (Contingency) |
How Long Does the Process Take?
For an acute shoulder injury (e.g., a sudden tear from lifting a heavy steel beam), WSIB often makes an initial decision within 2 to 4 weeks. For a repetitive strain rotator cuff claim, the adjudication process is more complex and can take 8 to 12 weeks. If you are denied and must appeal to the Workplace Safety and Insurance Appeals Tribunal (WSIAT), expect a delay of 12 to 18 months.
Frequently Asked Questions (FAQ)
Will WSIB cover my rotator cuff surgery?
Yes, if WSIB accepts your shoulder injury as work-related, they generally cover the cost of surgery, post-operative physiotherapy, and provide Loss of Earnings (LOE) benefits while you recover at home.
What if I had a pre-existing shoulder problem?
You can still receive WSIB benefits if your work duties significantly worsened or aggravated a pre-existing condition. WSIB takes workers as they find them, meaning a previous minor shoulder ache does not automatically disqualify you from an acute torn rotator cuff claim.
Can my employer force me back to heavy lifting?
No. Your employer must strictly abide by the functional abilities outlined by your doctor (on the FAF form). If they try to force you to lift items overhead before you are medically cleared, you should contact your WSIB case manager or union rep immediately.
What happens if my Form 6 is late?
You generally have six months to file a Form 6. If you miss this deadline, WSIB may reject your claim unless you have a compelling and valid reason for the delay, such as a severe medical emergency or a misdiagnosis by your doctor.
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