- The first priority is always the injured worker's health and safety, not paperwork.
- Employers are generally required to report a workplace injury to the WSIB, and the WSIB sets a specific reporting deadline that employers need to meet.
- Once a worker is receiving WSIB benefits, the employer's obligations don't end at the reporting stage.
A workplace injury is stressful enough without also having to figure out, in the moment, what the law requires of you as the employer. Ontario's Workplace Safety and Insurance Act, 1997 and the Occupational Health and Safety Act both impose obligations once an injury happens — some immediate, some ongoing through the claim and recovery process.
Here's the general sequence of what's expected.
Immediately After the Injury
The first priority is always the injured worker's health and safety, not paperwork. Beyond getting appropriate first aid or medical attention, employers generally have a few immediate obligations:
- Preserve the scene where appropriate, particularly for a more serious incident, since it may need to be reviewed later.
- Determine whether the injury meets the threshold for a critical injury requiring prompt notification to the Ministry of Labour under occupational health and safety law — this category is narrower than "any injury," but employers should not assume an incident falls outside it without checking.
- Generally continue to pay the worker's regular wages for the day the injury happened, separate from any WSIB benefits that follow — this is a foundational WSIB rule, though you should confirm the current details apply to your specific situation.
Reporting the Claim
Employers are generally required to report a workplace injury to the WSIB, and the WSIB sets a specific reporting deadline that employers need to meet. Because the exact reporting window and the required forms can change, confirm the current requirements directly with the WSIB or with legal counsel rather than relying on a fixed number of days.
Practical points that generally apply regardless of the exact deadline:
- Report promptly rather than waiting to see how the injury develops — delay itself can create problems with the claim and with compliance.
- Keep your own internal record of the incident, separate from what's submitted to the WSIB.
- Cooperate honestly with the WSIB's process; providing inaccurate or incomplete information about an incident can create separate liability exposure.
Your Return-to-Work Obligations
Once a worker is receiving WSIB benefits, the employer's obligations don't end at the reporting stage. Ontario's WSIB system generally expects employers to cooperate in a worker's return to work, which can include:
- Communicating with the worker and the WSIB about recovery and any restrictions
- Considering modified or suitable work that accommodates the worker's medical restrictions where the business can reasonably provide it
- In some circumstances, a legal duty to re-employ the worker — whether this applies, and in what form, depends on factors like the size of the employer and the worker's length of service, so this is genuinely a "check the specifics" area rather than a one-size-fits-all rule
Treating return-to-work as something the WSIB handles entirely on its own is a common and costly misunderstanding — the employer generally has an active role to play, not a passive one.
What Not to Do
A few reactions to a workplace injury create legal risk rather than reducing it:
- Discouraging a worker from filing a claim. This can itself be a violation of occupational health and safety protections against reprisal.
- Disputing a claim without a genuine basis, simply to avoid a premium impact — this can backfire and damage the employer's credibility with the WSIB over time.
- Ignoring modified-work obligations because accommodating the worker feels inconvenient, rather than genuinely assessing what's possible.
- Failing to investigate the underlying cause of the injury, which is often a separate occupational health and safety obligation from the WSIB claim itself.
A Practical Sequence
- Attend to the injured worker's immediate health and safety needs
- Assess whether Ministry of Labour notification is required
- Continue applicable wage continuation for the day of the injury
- Report the claim to the WSIB within the required timeframe
- Investigate the incident from a workplace safety perspective
- Stay engaged through the recovery process and assess return-to-work options
- Document every step along the way
Frequently asked questions
Do I have to report every minor workplace injury to the WSIB?
Reporting obligations generally apply once an injury results in lost time, health care costs, or other qualifying circumstances — a very minor incident with no lasting effect may not trigger the same obligations as a more serious one. When in doubt, err toward reporting and get advice on the specifics.
Can I ask the injured worker to come back before they're fully recovered?
Not unilaterally — return-to-work decisions should be based on medical information about the worker's actual restrictions and capabilities, worked out cooperatively rather than imposed. Modified work offered in good faith, consistent with medical restrictions, is different from pressuring an early return.
What if I think the injury didn't actually happen at work?
You're generally entitled to raise a genuine, evidence-based concern with the WSIB during the claims process. That's different from reflexively disputing every claim, which can create its own problems if there's no real basis for it.
Am I responsible for the worker's full lost wages myself?
No — WSIB benefits are generally what compensate the worker for lost income during the claim, separate from the employer's own obligations like wage continuation for the day of injury and any return-to-work duties. The WSIB system is specifically designed to take the place of a direct lawsuit against the employer for a covered injury.
This is a corporate question
Start a file online — flat, published fees, reviewed by a licensed Ontario lawyer before a dollar is owed.