Insurance Claim Denied in Ontario? How to Appeal

Ontario has one of the most complex insurance regulatory environments in Canada — and one of the most structured appeal systems. With FSRA, the Licence Appeal Tribunal for SABS disputes, OLHI and GIO for private insurance, and Ontario's Insurance Act as the foundational framework, policyholders who face unfair denials have multiple formal channels available.

Why Insurers Deny Claims in Ontario

SABS disputes over benefit eligibility. Ontario's Statutory Accident Benefits Schedule (SABS, O. Reg. 34/10) is detailed and generates frequent disputes about benefit qualification thresholds — particularly for non-earner benefits, attendant care, and catastrophic impairment designation. Insurers apply their own medical assessors' conclusions over those of treating physicians, and these determinations are directly challengeable through the Licence Appeal Tribunal.

Minor Injury Guideline application. Insurers routinely apply the Minor Injury Guideline (MIG) to cap medical and rehabilitation benefits. If you have a pre-existing condition or an injury the insurer classified as minor but which is clinically more complex, you have grounds to break out of the MIG — supported by comprehensive treating physician and specialist reports.

Pre-existing condition exclusions. Private health and disability insurers deny claims citing conditions that predated coverage. The policy exclusion must be clearly documented in your certificate, and the insurer's determination of pre-existing status must follow a proper underwriting assessment — not a retrospective claim review.

Disputed medical necessity. Extended health and disability insurers deny claims on grounds that treatment is not medically necessary under the plan's clinical criteria, or that the claimant no longer meets the policy's definition of disability.

Independent Medical Exam (IME) disputes. Insurers commission their own assessors to contradict the opinions of treating physicians. IME opinions that are inconsistent with the majority of medical evidence in the file or that lack independence are challengeable at the LAT.

Coordination of benefits. When OHIP and private insurance both potentially apply, disputes about primary and secondary payer status create partial denials requiring formal challenge.

How to Appeal a Denied Claim in Ontario

Step 1: Identify Your Insurance Type and the Correct Dispute Pathway

Ontario has distinct pathways for different insurance types. SABS auto accident benefit disputes go to the Licence Appeal Tribunal (LAT). Private health, disability, and life insurance disputes go through OLHI. Property and general insurance disputes go through GIO. Knowing which pathway applies from the start prevents wasted time on misdirected appeals.

Step 2: Obtain the Written Denial with Full Grounds

Request a formal written denial from your insurer specifying the exact SABS regulation, policy clause, or clinical criterion applied. Under FSRA's consumer protection requirements and Ontario's Insurance Act (R.S.O. 1990, c. I.8), insurers must provide written reasons for claim decisions. Without this document, you cannot build an effective appeal.

Step 3: Gather Medical Evidence Supporting Your Position

Compile treating physician reports, specialist assessments, functional capacity evaluations, and any IME reports you have received. For SABS disputes, the quality and comprehensiveness of your treating physician's documentation is often the decisive factor at a LAT hearing. For disability claims, obtain a detailed functional capacity evaluation and physician's statement specifically addressing the policy's disability definition.

Step 4: File a Formal Internal Appeal or SABS Application

For private health and disability disputes, file a formal written internal appeal with the insurer's claims review team, exhausting all internal levels before escalating. For SABS disputes, file an application for mediation with the Financial Services Regulatory Authority (FSRA) — mandatory mediation precedes a LAT hearing under the Dispute Resolution Practice Code (DRPC).

Step 5: Escalate to the LAT, OLHI, or GIO

After exhausting internal options:

• Licence Appeal Tribunal (LAT) at slasto-tribunaux.ca/en/lat — for SABS auto accident benefit disputes. The LAT issues binding adjudicative decisions.
• OmbudService for Life & Health Insurance (OLHI) at olhi.ca — for life, disability, health, and group benefit disputes. Free, independent review.
• General Insurance OmbudService (GIO) at gio-oag.ca — for home, auto property, and commercial insurance disputes. Free, impartial review.

Step 6: File a Complaint with FSRA for Conduct Violations

For insurer conduct violations — including failure to respond within required timeframes, misrepresentation of policy terms, or unfair claims handling — file a complaint with the Financial Services Regulatory Authority of Ontario (FSRA) at fsrao.ca (1-800-668-0128).

What to Include in Your Appeal

• Written denial with the specific SABS provision, policy clause, or clinical criterion cited
• Treating physician's report and specialist assessments addressing the denial basis
• Functional capacity evaluation (for disability and SABS injury claims)
• Certificate of insurance or policy booklet with relevant coverage sections marked
• All IME reports received from the insurer and any rebuttal opinions from your treating practitioners

Fight Back With ClaimBack

Ontario's SABS framework, the LAT's binding adjudicative authority, and OLHI/GIO's free independent review collectively give policyholders real power to challenge unfair denials. ClaimBack generates a professional appeal letter citing Ontario's Insurance Act, SABS regulations, and the specific grounds that maximize your chances in 3 minutes. Start your free claim analysis → Free analysis · No credit card required · Takes 3 minutes

Related Reading

• How to Write an Insurance Appeal Letter
• What Is Medical Necessity?
• Internal vs External Insurance Appeal