The Ontario Civil Litigation Process: From Claim to Trial

Most civil lawsuits in Ontario never reach a courtroom. They settle — sometimes after a single letter, sometimes after years of procedural skirmishing. But to negotiate from strength, and to know when to push and when to accept a deal, you need to understand what the full process looks like and where you are within it.

This guide maps the civil litigation process in Ontario for cases in the Superior Court of Justice, the court that handles most civil disputes above the Small Claims Court monetary limit. The governing framework is the Rules of Civil Procedure, a detailed set of procedural rules that dictate how cases move through the system.

Stage 1 — Pleadings: Defining the Dispute

A civil action begins when the plaintiff files a Statement of Claim with the court and pays the filing fee. The Statement of Claim must identify the parties, state the facts relied upon, and set out what the plaintiff is asking for.

Once the claim is issued, it must be served on the defendant within six months (though the clock can be extended). The defendant then has a set time — typically 20 days for a defendant served in Ontario — to deliver a Statement of Defence. If the defendant also has a claim against the plaintiff, they may file a Counterclaim.

Together, these documents are called the pleadings. They define the legal and factual boundaries of the dispute. Courts are reluctant to allow parties to introduce entirely new issues at trial that were not pleaded — so getting the pleadings right matters.

If the defendant fails to defend, the plaintiff can move for default judgment, but winning on paper is not the same as collecting.

Stage 2 — Documentary Discovery

After the pleadings close, each party has an obligation to disclose all documents in their possession, control, or power that are relevant to any matter in issue. This is called documentary discovery (or discovery of documents).

Each party prepares an Affidavit of Documents listing every relevant document — including documents that are not in their favour. The obligation extends to electronically stored information: emails, texts, spreadsheets, photos, and other digital records. The opposing party then has the right to inspect and copy the listed documents.

Failing to disclose a relevant document — especially one that later surfaces at trial — can be severely damaging to your case, both practically and before the judge.

Stage 3 — Oral Examinations for Discovery

Oral examinations for discovery (often called simply "discoveries") allow each side to examine the other's representative under oath before trial. There is no judge present — just lawyers and a court reporter transcribing every word.

Discoveries serve several critical functions:

• They lock in the other side's version of events, which can be used to challenge inconsistencies at trial.
• They reveal the strength and weaknesses of each side's evidence.
• They frequently lead to settlement, because both sides get a clear picture of what trial would look like.

For corporate parties, one representative is typically examined on behalf of the company. Individuals are examined personally. The transcripts can be used at trial.

Stage 4 — Motions

At various points throughout the litigation, parties may bring motions — applications to the court to decide procedural or substantive matters before trial. Common motions include:

• Summary judgment — a motion asking the court to decide the case (or part of it) without a trial, on the grounds that there is no genuine issue requiring a trial. Summary judgment has become an increasingly important tool in Ontario courts.
• Production motions — where a party disputes whether certain documents need to be disclosed.
• Injunctions — emergency motions asking for a court order restraining someone from doing something pending the outcome of the case.

Motions add time and cost to litigation. Experienced counsel knows which motions are worth bringing and which are tactical distractions.

Stage 5 — Mandatory Mediation

In most regions of Ontario — including Toronto, Ottawa, and Essex County — the Rules of Civil Procedure require the parties to attend mandatory mediation before the case can proceed to trial. Even where not mandatory, mediation is strongly encouraged and widely used.

Mediation is a confidential, voluntary negotiation process conducted by a neutral third party called a mediator. The mediator does not impose a decision — their role is to facilitate conversation, reality-test each side's position, and help the parties find common ground.

Mediation settles a large proportion of Ontario civil disputes. Even cases where the parties seem far apart often resolve at mediation, because the process forces both sides to confront the risks, costs, and uncertainty of going to trial.

Stage 6 — Pre-Trial Conference

If mediation does not resolve the case, the parties attend a pre-trial conference before a judge. The pre-trial is different from trial — its purpose is case management, not adjudication.

The pre-trial judge reviews the issues, the evidence, and the parties' positions, and may give a candid assessment of the merits. Pre-trial judges often encourage settlement, and their views — even though non-binding — carry weight because the parties know a similar judge will be deciding the case at trial.

The pre-trial also deals with logistical matters: trial scheduling, the number of witnesses, estimated trial length, and any procedural issues that need to be resolved before trial begins.

Stage 7 — Trial

Trial is the culmination of the process, but it is also the most expensive, time-consuming, and unpredictable stage. A judge hears evidence from witnesses, reviews documents, considers legal arguments from counsel, and ultimately decides who wins and what, if anything, is awarded.

Civil trials in Ontario can range from one day for a simple dispute to many weeks for complex commercial litigation. Both parties bear the costs of preparing and presenting their case. Costs awards — where the losing party pays a portion of the winner's legal fees — are common but rarely cover the full amount spent.

Most cases settle before trial. When lawyers talk about "litigation strategy," they often mean managing the path to a favourable settlement, not necessarily planning for a courtroom fight.

Realistic Timelines

Ontario's civil courts face significant backlogs. A realistic timeline for a defended Superior Court action from filing to trial is two to four years, sometimes longer in complex cases or busy jurisdictions. Summary judgment motions, if successful, can resolve cases much sooner.

This reality reinforces the importance of early settlement discussions. Even a less-than-perfect settlement often compares favourably to two more years of uncertainty, legal fees, and disruption.

What Does Litigation Cost?

Costs vary enormously based on the complexity of the case, the conduct of the parties, and how far the matter proceeds. A straightforward contract dispute might cost $10,000–$30,000 in legal fees if it settles early. A fully contested trial in the Superior Court can cost $100,000 or more per side.

Fee arrangements vary. Treadstone Law uses flat-fee structures wherever possible so clients know what they are paying at each stage, without hourly billing surprises.

Frequently asked questions