Introduction

Late notice is one of the fastest ways to turn an accident-benefits file into a denial fight. If the insurer says the claimant missed the section 32 deadline, the discussion can end there unless the applicant can fit within the Schedule’s reasonable-explanation exception.

A 2026 LAT preliminary issue decision (2026 CanLII 48390, ON LAT) is a clean example of how that fight is framed. The case involves section 32 notice and application timing, the claimant's delay, and the backstop in section 55 that can preserve entitlement when the applicant has a reasonable explanation.

For clinics and providers, the lesson is simple: late filing is not just an administrative issue, and often it is no issue at all - because mentioning the injuries even once while reporting the accident counts as notice. When it is a real issue, section 55 can still save the file. A companion research compilation walks through eight ON LAT decisions on late reporting - four where the explanation worked and four where it failed - in Late Reporting of Injuries After an Accident: Not Hopeless.

What Happened

The claimant in the 2026 decision was involved in an automobile accident in November 2022 and sought accident benefits under the Statutory Accident Benefits Schedule. The matter came before the Tribunal as a preliminary issue hearing, which is where timing disputes often get decided before the rest of the benefits claim is even reached.

The legal question was whether the applicant’s notice and application complied with section 32, and if not, whether section 55 allowed the claim to survive because there was a reasonable explanation for the delay.

That is the practical structure of many late-notice disputes. The insurer points to the missed deadline. The applicant points to the reason the deadline was missed. The Tribunal decides whether the explanation is good enough to avoid disentitlement.

If You Mentioned Injuries When Reporting the Accident, That Counts

The fastest way to beat a late-notice defense is to show that notice actually happened. Under the Divisional Court's decision in 2025 ONSC 842, the section 32(1) notice requirement is met when the insured simply advises the insurer of the accident. Once the insurer knows about the accident, the onus shifts: the insurer should inquire whether the insured sustained injuries, clarify which benefits are being sought, and send the application forms and explanation of benefits under section 32(2).

This matters in the everyday scenario clinics hear constantly: the claimant called to report vehicle damage and mentioned a sore neck in passing. That mention counts. The insurer cannot treat the call as property-damage only and later deny that it received notice of an injury claim.

The Divisional Court expressly refuted the earlier Tribunal line that had held that reporting the accident alone was not enough and that the insurer had no obligation to ask about injuries. The 2025 decision is binding, and the facts are common: an accident report, a mention of symptoms, and an insurer that did not follow up.

What to document when this happens:

  • who the claimant spoke to at the insurer, and when
  • what the claimant said about injuries, even in passing
  • whether the insurer asked about injuries or sent forms
  • any claim number or file reference from the vehicle-damage report

A single documented mention of injuries during the damage report can end the late-notice fight before it starts. For more on how denials are structured, see insurer denials and your rights.

Why Section 32 Matters So Much

Section 32 is not a technicality. It is the gateway to accident benefits. If the insurer can show the claimant did not give notice or make the application in time, the insurer gets a strong disentitlement argument before it ever has to address treatment, attendant care, assessments, or income replacement.

That is why these files are often decided on paper records:

  • when the accident happened
  • when the claimant first spoke to the insurer
  • when the OCF-1 or other application materials were completed
  • what prevented earlier notice
  • whether the explanation covers the full period of delay

What The Reasonable-Explanation Backstop Does

Section 55 is the safety valve. It recognizes that some claimants miss deadlines for reasons that are real, documented, and understandable. The Schedule does not treat every late filing as fatal.

In practice, the Tribunal looks for an explanation that is more than vague confusion or hindsight. A persuasive record usually has at least one of these features:

  • a medical reason that prevented timely action
  • evidence the claimant was confused about the claims process despite trying to comply
  • communication problems with the insurer or representative
  • hospitalization, cognitive impairment, or other accident-related barriers
  • a paper trail showing the claimant acted as soon as it became possible to do so

The stronger the documentation, the easier it is to treat the delay as excusable rather than careless. For how the explanation test played out across eight recent LAT decisions - including where bare ignorance failed and documented vulnerability won - see Late Reporting of Injuries After an Accident: Not Hopeless.

What Providers Should Do Differently

If you work with patients who may have an accident-benefits claim, you can reduce a lot of risk before the file becomes a formal dispute.

1. Treat notice as urgent.

Do not wait for the full intake to be perfect before the claimant notifies the insurer. A short, documented notice is usually better than a polished application that arrives too late. Even a passing mention of injuries during a vehicle-damage report counts as notice under 2025 ONSC 842.

2. Document the reason for any delay immediately.

If the claimant could not file on time, write down why while the reason is still fresh. Hospitalization, cognitive symptoms, language barriers, family disruption, or confusion about coverage should be recorded in the chart, not reconstructed months later.

3. Keep the timeline together.

Late-notice fights are timeline fights. Save the accident date, first treatment date, first insurer contact, first OCF-1 discussion, and application submission date in one place.

4. Do not rely on verbal explanations.

What sounds reasonable in conversation often disappears in a hearing room. If the explanation matters, it needs to be in the file.

5. Assume the insurer will raise disentitlement early.

A late section 32 issue can become the insurer’s first defense. If you know the file is late, build the explanation as carefully as you would build the treatment evidence.

The Practical Takeaway

The 2026 preliminary issue decision is a useful reminder that late notice is not always the end of the road, but it is never a minor issue. The Schedule gives insurers a real timing defense, and it puts the onus on the applicant to explain the delay.

For clinics and claimants, have a clear, documented, credible explanation right away. That is the difference between a file that survives section 32 and one that gets stopped before the merits are even heard.