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Find a Lawyer » Canada Legal Guides » Ontario Legal Guides » Workers’ Compensation (WSIB) Ontario » How to Properly Complete the WSIB Form 6 Worker’s Report of Injury in Ontario

How to Properly Complete the WSIB Form 6 Worker’s Report of Injury in Ontario

26 Mar 2026 6 min read No comments Workers’ Compensation (WSIB) Ontario
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Filing your WSIB Form 6 accurately is the single most critical step in securing your workers’ compensation benefits in Ontario. You must file this document within 6 months of your accident. Always provide a highly detailed description of the event and explicitly list every single injured body part, no matter how minor it seems at the time.

When an accident happens on an Ontario job site, the ensuing chaos often leads to critical administrative mistakes. Whether you slipped in a busy Toronto restaurant, suffered a lifting injury in a Mississauga warehouse, or were exposed to toxic chemicals in a Hamilton factory, your primary focus is naturally on your medical recovery. However, the Workplace Safety and Insurance Board (WSIB) requires formal documentation to approve your claim and pay your Loss of Earnings (LOE) benefits. The most vital document in this entire process is the Form 6: Worker’s Report of Injury/Disease.

Many injured workers rush through the Form 6, viewing it as a mere formality. This is a dangerous misconception. The Form 6 is your official, legally binding statement of what happened. If the details on this form contradict what your employer reports on their Form 7, or what your doctor writes on their Form 8, the WSIB Adjudicator may flag your claim for “inconsistencies” and deny your benefits entirely. In this comprehensive guide, we will walk you through exactly how to complete the Form 6 properly to protect your financial and medical future.

Why the Form 6 is the Most Important Document

In the Ontario workers’ compensation system, three initial forms open a claim. The Form 7 is completed by your employer, and the Form 8 is completed by your treating healthcare professional. However, the Form 6 is the only document where you have complete control over the narrative. 🔍

Employers frequently minimize accidents on their Form 7 to protect their insurance premiums. Doctors, while objective, might miss a minor detail on the Form 8 because they are rushing through a busy emergency room. The Form 6 is your exclusive opportunity to clearly state the mechanism of the injury, identify witnesses who can back up your story, and ensure every single ache and pain is officially registered with the provincial government.

Step-by-Step Process to Completing Form 6 in Ontario

You can complete the Form 6 online through the WSIB’s secure portal, or you can print a physical copy and submit it by mail or fax. Regardless of the method you choose, you must fill out every section with extreme precision.

Step 1: Worker and Employer Details (Section A & B)

Accuracy here is crucial to avoid administrative delays. Ensure your Social Insurance Number (SIN), date of birth, and contact information are perfectly correct. When listing your employer, use their official corporate name, not just the casual name on the storefront. If you work for a temporary employment agency, you must list the temp agency as your employer, not the client company whose warehouse you were physically standing in.

Step 2: Description of the Accident (Section C)

This is where most claims are won or lost. Do not write a vague sentence like “I fell and hurt my back.” You must describe the precise “mechanism of injury.” 📝 Provide a step-by-step account. A strong description looks like this: “At 2:15 PM, I was carrying a 40-pound box of steel parts. The floor in aisle 4 was covered in an unlabelled oil spill. My left foot slipped forward, causing me to twist my torso forcefully to the right and fall backward onto my lower spine.” This level of detail proves exactly how the workplace environment directly caused the physical trauma.

Step 3: Identifying the Injured Body Parts (Section D)

You must list every single body part that hurts, even if one injury is distracting you from the others. For example, if you shattered your right arm but also bruised your left knee during the fall, list both. If you only list the arm, and six months later the knee requires surgery due to torn cartilage from the fall, the WSIB will almost certainly deny the knee surgery because it was “never reported on the initial Form 6.” Always specify left or right side.

Step 4: Earnings and Time Lost (Section E & F)

Your Loss of Earnings (LOE) benefits are calculated at 85% of your pre-injury net average earnings. Therefore, you must be honest and precise about your wages. Include your standard hourly rate, but also note if you regularly work overtime, receive shift premiums, or earn piece-work bonuses. If you have a second part-time job elsewhere, mention it, as the WSIB sometimes factors secondary earnings into your overall wage loss calculation. 💰

Step 5: Healthcare and Witnesses (Section G & H)

List the exact name of the hospital, clinic, or family doctor you visited first. If anyone saw the accident happen, list their full names and phone numbers. If there were no direct witnesses, list the name of the very first person you told about the injury (e.g., “I immediately limped to the breakroom and told my supervisor, John Smith”).

Common Mistakes to Avoid When Filing

Failing to submit the Form 6 is the biggest mistake you can make. Under the Workplace Safety and Insurance Act, you face a strict 6-month statutory deadline to file this document from the date of the accident. If you miss this deadline, your claim will generally be permanently barred. Furthermore, never let your employer fill out the Form 6 for you. You must complete it yourself to ensure the employer does not manipulate the details of the accident.

How Much Does it Cost to File in Ontario?

Filing your Form 6 and accessing the WSIB system is designed to be completely free for the injured worker. If you run into complex legal issues down the line, a law firm can step in. Here is an overview of costs in Canadian dollars (CAD).

Service / Benefit TypeEstimated Cost / Value (CAD)
Filing the Form 6$0 (Completely free).
Lawyer Review of Complex Claim$0 (Most WSIB firms offer free initial consults).
Law Firm Contingency Fee15% to 30% (Only if you are denied and need to appeal).
Loss of Earnings (LOE) Pay85% of your net average pre-injury earnings.

How Long Does WSIB Take to Process Form 6?

If you submit your Form 6 online via the WSIB portal, it is registered in their system almost instantly. For a standard traumatic injury (such as a fracture or severe laceration), the WSIB generally assigns an Adjudicator and makes an initial eligibility decision within 14 to 30 days of receiving your Form 6 and the doctor’s Form 8. Complex claims, such as gradual onset repetitive strain injuries or occupational diseases, will take several months to investigate.

Frequently Asked Questions (FAQ)

Can I fill out the Form 6 entirely online?

Yes. The WSIB strongly encourages workers to use their secure online portal to submit the Form 6. It is faster, guarantees delivery, and provides you with a confirmation number instantly for your records.

Does my boss have to sign my Form 6?

No. Your employer has absolutely no right to sign, alter, or delay your Form 6. However, you are legally required to provide a copy of your completed Form 6 to your employer so they are aware of the details of your claim.

What if I made a mistake on the form after I submitted it?

If you realize you forgot to list a body part or made an error regarding the time of the accident, do not panic. Simply write a formal, dated letter to your WSIB Adjudicator explaining the exact mistake and providing the correct information as soon as possible.

Do I need a lawyer to fill out the Form 6?

Generally, no. The form is designed for workers to complete independently. However, if your claim involves severe psychological trauma, a complex occupational disease, or if your employer is already actively threatening you, consulting a law firm before submitting the form is a wise strategy.

What if I do not know my exact hourly wage?

Do your best to estimate your earnings or use your most recent pay stub. The WSIB will ultimately verify your exact wages by requesting payroll records directly from your employer, so minor estimations on the Form 6 will not ruin your claim.

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