Suing After a Car Accident in Ontario: The Basic Civil Process

Ontario's car insurance system is complicated. Unlike some jurisdictions, Ontario operates a hybrid model: accident victims can access accident benefits through their own insurer (regardless of fault) and — if they meet certain conditions — sue the at-fault driver in a civil court for additional damages. If you've been seriously hurt in a car accident, understanding how the civil lawsuit process works alongside the insurance system is essential.

Suing after a car accident in Ontario is not like suing for a simple debt. There are legal thresholds, limitation periods, and insurance company defendants who will defend aggressively. This article walks through the basic process.

Step 1: Access Your Accident Benefits First

Ontario's no-fault Statutory Accident Benefits (SABS) are available to every person injured in a car accident in Ontario through their own auto insurer, regardless of who caused the accident. Benefits can include:

• Income replacement benefits (if you cannot work)
• Medical and rehabilitation benefits
• Attendant care benefits (if you need personal care support)
• Non-earner benefits

The amounts and categories of benefits depend on the type of policy you hold and the nature of your injuries — as of writing, verify current amounts with your insurer or a lawyer.

Filing for accident benefits is separate from suing the at-fault driver. You should apply for accident benefits immediately after an accident while also consulting a lawyer about a potential tort claim.

Step 2: Determine Whether You Can Sue (The Tort Threshold)

Ontario law limits your right to sue the at-fault driver for pain and suffering (called "general damages" or "non-pecuniary general damages"). To bring a tort claim for pain and suffering, you must show that your injuries meet one of the following thresholds:

• Permanent and serious impairment of an important physical, mental, or psychological function, or
• Permanent serious disfigurement

"Permanent" does not necessarily mean forever — Ontario courts and insurance law have developed extensive jurisprudence on this. The threshold analysis is one of the most contested aspects of Ontario car accident litigation.

There is also a deductible applied against pain and suffering awards below a certain amount (as of writing — verify the current deductible). In practical terms, moderate soft-tissue injuries that resolve relatively quickly often fall below the threshold or the deductible, making a tort claim financially unviable. Serious injuries — fractures, traumatic brain injuries, spinal cord injuries, significant psychological conditions — are different.

Step 3: Identify the At-Fault Driver and Their Insurer

To sue in tort, you need to know:

• Who caused the accident (establishing fault is a factual and legal question)
• Whether they are insured, and who their insurer is
• Whether they can be identified (hit-and-run cases have special rules — the Motor Vehicle Accident Claims Fund or uninsured motorist coverage may apply)

In Ontario, when you sue the at-fault driver, their auto insurance company steps in to defend the claim and pay any judgment up to the policy limits. The minimum coverage required by law in Ontario is as of writing — verify the current minimum.

Step 4: Commence the Lawsuit

Car accident tort claims in Ontario are commenced in the Superior Court of Justice. The basic steps:

Notice to Insurer

Before (or concurrent with) suing, there are notice requirements to the defendant's insurer. These must be met; failure can affect your claim. A lawyer will handle this for you.

Statement of Claim

The formal legal document setting out your allegations. It names the defendant (and potentially others — vehicle owners, employers, municipalities) and describes the accident, your injuries, and the damages you seek.

Service

The Statement of Claim must be formally served on the defendant(s).

Statement of Defence

The defendant (through their insurer) files a response. Insurers defend these claims routinely and have experienced defence counsel.

Step 5: The Discovery Phase

Before trial, both sides exchange information:

• Production of documents: Medical records, employment records, accident reports, photos, and more are exchanged.
• Examinations for discovery: Oral questioning under oath, recorded by a court reporter. You will be questioned about your injuries, your background, your activities before and after the accident, and your losses. Your lawyer prepares you.

This phase can take a year or more in complex injury cases.

Step 6: Mediation (Mandatory in Some Regions)

Ontario's civil procedure requires mandatory mediation before trial in certain jurisdictions (including Toronto, Ottawa, and Windsor as of writing — verify). Mediation is a structured negotiation with a neutral third-party mediator. Many car accident cases settle at or after mediation.

Step 7: Trial

If the case does not settle, it proceeds to trial. Car accident tort trials in Ontario are typically before a judge alone, though jury trials are possible. Trials can last days to weeks depending on complexity.

Limitation Periods: Critical Deadlines

Ontario's general limitation period is two years from the date you knew (or ought to have known) that you had a claim — as of writing. For car accident claims, this is typically two years from the accident date, but there are exceptions (for minors, for instance, or where injuries were not immediately discovered).

There are also notice requirements that must be met within specific timeframes, including with your own insurer regarding accident benefits. Missing deadlines can extinguish your rights.

Get legal advice promptly after any significant car accident.

Frequently asked questions