Introduction

A psychotherapist submits an invoice at $149.61 per hour. The insurer pays $99.75. The difference goes to the Licence Appeal Tribunal.

The psychotherapist loses. Not because the rate was unreasonable. Not because the treatment was unnecessary. But because they submitted exactly zero evidence to justify the higher rate. No market data. No credential documentation. No case complexity rationale. Nothing.

A 2026 Aviva decision at the LAT makes the point bluntly: if you bill above the Professional Services Guideline rate for your discipline, the burden is on you to prove why. If you show up empty-handed, you lose.

What Happened

The case involved a psychotherapist who billed treatment sessions at $149.61 per hour - the psychologist rate under the Professional Services Guideline. The Guideline assigns different maximum rates to different provider types. Psychotherapists max out at $99.75. Psychologists max out at $149.61.

The provider argued the higher rate was justified. The insurer disagreed and paid at the lower psychotherapist rate. When the dispute reached the Tribunal, the adjudicator asked a simple question: what evidence supports billing at the psychologist rate?

The answer was none.

No market comparables showing that psychotherapists in Ontario routinely charge psychologist-level rates. No documentation of specialized training or certifications that would justify a premium. No explanation of why this particular case demanded a higher level of expertise than standard psychotherapeutic treatment.

The Tribunal applied the lower rate. Every dollar above $99.75 was denied.

The Guideline Rates Are Not Suggestions

A common misunderstanding among clinics is that the Professional Services Guideline rates are flexible benchmarks - a starting point for negotiation. They are not. The Guideline establishes the maximum amount an insurer is liable to pay for services provided by each regulated health profession.

For 2026, the key hourly rates are:

| Provider Type | Guideline Maximum | |---------------|-------------------| | Psychologist | $149.61 | | Psychotherapist | $99.75 | | Physiotherapist | $99.75 | | Chiropractor | $99.75 | | Occupational Therapist | $99.75 | | Social Worker | $99.75 |

You can bill above these rates. The Guideline does not prohibit it. But the moment you do, the insurer is not automatically liable for the excess. The burden shifts to you to prove the higher rate is reasonable and necessary for the specific services provided.

What Counts as Evidence

The Aviva psychotherapist decision tells you what the Tribunal wants to see. It is not a mystery. The same types of evidence appear in the cases where providers win their rate disputes.

Market rate data for your discipline in Ontario. In a Traders General Insurance dispute, an osteopath successfully defended an $80 per hour rate by citing National Academy of Osteopathy data showing most osteopaths charge $140 per hour in Canada. The insurer tried to cap the rate. The Tribunal rejected the cap because the provider brought evidence.

Market data does not need to be a commissioned study. Publicly available rate surveys, association fee schedules, and published billing guides from your professional college all qualify. The key is that it exists and you submitted it.

Your specific training, certifications, and years of experience. A provider with 20 years of experience, advanced certifications, and specialized training in trauma or chronic pain can justify a higher rate more easily than a new graduate. But you need to document it. A CV, a list of certifications with dates, and a brief explanation of how your training applies to the specific case.

Complexity of the case. Not all MVA patients are the same. A patient with catastrophic impairment, multiple comorbidities, or complex psychological trauma may require a higher level of clinical expertise. Explain why this patient is different and why that difference matters to the rate.

Comparable rates from similar providers in your region. If other psychotherapists in your area charge similar rates for similar work, document it. This can be as simple as referencing the Ontario Association of Social Workers' recommended rates - which the Tribunal accepted in S.K. v. Aviva Insurance when a social worker successfully defended a $135 per hour assessment rate.

The Pattern Across Rate Disputes

The psychotherapist case is not an outlier. It fits a clear pattern across multiple 2026 LAT decisions:

  • Providers who bring evidence win their rate disputes. The Traders General osteopath decision, S.K. v. Aviva (social worker/PSW), and the successful brokerage fee claims in HR v. Intact all share one thing: the provider showed up with documentation.
  • Providers who bring nothing lose. The psychotherapist case and the OT planning fee case (Aviva, 2026) both failed because the provider assumed the Tribunal would accept their rate without supporting evidence.
  • The insurer does not have to prove your rate is unreasonable. The burden is on the claimant and the provider. If you submit no evidence, the insurer wins by default - not because they made a better argument, but because you made none at all.

How to Prepare Before You Submit

You do not need to wait for a denial to prepare rate justification evidence. Build a file now.

1. Create a rate justification package for your clinic. Include your professional CV, all certifications, market rate data for your discipline, and any published rate guidelines from your professional association. Update it annually.

2. For each patient file that may exceed guideline rates, add a one-page rate justification letter. Explain what makes this case complex, what specialized skill it requires, and why your rate is reasonable.

3. Attach the evidence to the OCF-18. Do not wait for the insurer to ask. If you know your rate exceeds the guideline, include the justification with the initial submission. This preempts the denial and gives the insurer less room to argue.

4. If denied, do not just resubmit the same invoice. Send the rate justification package with a cover letter citing the specific evidence. Reference the case law: the Traders General osteopath decision, S.K. v. Aviva, and the psychotherapist decision itself - which shows what happens when you submit nothing.

Conclusion

The psychotherapist rate decision is frustrating because it was avoidable. The provider did real treatment. The patient needed it. The only thing missing was a folder of supporting documents that probably already existed somewhere in the clinic's files.

If you bill above guideline rates, treat the justification as part of the billing process - not an afterthought when the denial arrives. A $50 per hour difference across 20 sessions is $1,000. Across a full caseload, it is real revenue. Spending 30 minutes preparing a rate justification file is one of the highest-return tasks you can do for your clinic this week.