If your vehicle has been in an accident — even one that was properly repaired — it's typically worth less than an equivalent vehicle with a clean history. That gap is called diminished value, and it's one of the most misunderstood topics in Canadian auto insurance.

What is diminished value?

Diminished value generally falls into three categories:

  • Immediate diminished value — the drop in value the moment damage occurs, before any repair.
  • Inherent diminished value — the permanent stigma a documented accident history carries, even after a perfect repair.
  • Repair-related diminished value — additional value lost due to the quality of the repair work or use of aftermarket parts.

Why diminished value is complicated in Ontario

This is the part most articles skip: Ontario's no-fault auto insurance system significantly limits when you can actually recover diminished value. In most circumstances, you cannot sue an at-fault driver directly for this type of loss — the no-fault framework routes claims through your own insurer instead, and standard policies generally treat diminished value as an indirect loss that isn't automatically covered.

That doesn't mean documenting diminished value is pointless. It can still matter if:

  • You're disputing a total-loss settlement offer you believe undervalues your pre-accident vehicle
  • Your situation involves an uninsured or underinsured motorist claim
  • The accident happened out of province, under different rules
  • You simply want a documented, defensible value before selling or trading a previously-repaired vehicle

How an independent appraisal helps

A diminished value appraisal estimates your vehicle's value immediately before the accident and compares it to its documented value after repair, using comparable sales and a clear methodology. That gives you something concrete to bring to your insurer, your broker, or a lawyer — rather than an unsupported opinion about what the car "should" be worth.

This is not legal advice. Whether — and how — you can recover any amount for diminished value depends entirely on your policy and the specifics of your accident. If real money is at stake, talk to your insurance broker or a lawyer alongside getting your vehicle appraised.

Getting a diminished value appraisal

To prepare an accurate report, we typically need your accident date, repair estimate/invoice, insurance claim number (if applicable), and current photos of the vehicle. See our diminished value appraisal service for full details and pricing.

Quick FAQs

Can I sue the other driver for diminished value in Ontario?
Generally no — Ontario's no-fault insurance system restricts most lawsuits against at-fault drivers for this type of loss. Speak with a lawyer about your specific circumstances.
Will my own insurer pay diminished value automatically?
Not automatically. Standard policies typically treat it as an indirect loss. A documented appraisal gives you evidence to raise with your insurer, but the outcome depends on your policy.