- - A final order finally disposes of the substantive rights between the parties on the issues raised in the litigation — after it, that particular dispute is resolved, subject to any appeal.
- - Final orders and interlocutory orders are often treated differently when it comes to which appeal route applies, and whether you need the court's permission — leave — before an appeal…
Not every order a judge makes in a lawsuit is the end of the story. Some rulings decide the whole case; others just settle a dispute along the way and leave the main event still ahead. Understanding the difference between an interlocutory vs final order matters most when you're deciding whether — and where — you can appeal.
This guide breaks down the basic distinction, why it affects your appeal rights, and where people commonly get it wrong.
The Basic Distinction
- A final order finally disposes of the substantive rights between the parties on the issues raised in the litigation — after it, that particular dispute is resolved, subject to any appeal.
- An interlocutory order deals with a procedural or preliminary matter along the way — it doesn't resolve the underlying dispute itself, even though it might feel decisive at the time. An order deciding what documents must be produced, or refusing a request to add a party, is a typical example.
The distinction isn't always about how important the order feels — a procedural order can have a big practical impact and still be interlocutory, because it hasn't finally resolved the parties' substantive rights.
Why the Difference Matters for Appeals
This distinction determines where an appeal goes, and sometimes whether you can appeal at all without first getting permission:
- Appeals from the Superior Court of Justice generally go to either the Divisional Court or the Court of Appeal for Ontario, depending on the nature of the order being appealed.
- Final orders and interlocutory orders are often treated differently when it comes to which appeal route applies, and whether you need the court's permission — leave — before an appeal can even proceed.
- Getting the classification wrong, such as appealing to the wrong court or appealing without leave when leave was required, can cause real delay, and in some cases the loss of an appeal right altogether.
Because the consequences of misclassifying an order can be serious, this is genuinely a "get it checked before you act" area of practice.
Common Examples
| Type of order | Typical example |
|---|---|
| Interlocutory | A ruling on a procedural motion mid-case — document production, adding or removing a party, a temporary injunction pending trial |
| Final | A judgment after trial deciding liability and damages; a summary judgment dismissing or resolving the entire claim |
These examples represent the general pattern, but classifying a specific order can require careful analysis of what the order actually decided, not just its label.
Grey Areas and Why They Trip People Up
Some orders sit in an uncomfortable middle ground. An order might resolve one claim among several in a lawsuit but leave others alive, or might dismiss a case on a technical basis that feels final to the losing party but is treated differently for appeal purposes. A ruling on a preliminary legal issue can sometimes end up being effectively final for one party even though the file, on paper, is still open.
Because the classification can be genuinely unclear even to experienced litigators in some situations, it's not something to guess at — the wrong assumption about which court to appeal to, or whether you need leave, can cost you the appeal entirely.
What to Do If You're Unsure
- Don't assume an order is final just because it feels significant or was hard-fought.
- Don't assume an order is interlocutory just because it happened mid-case rather than after a full trial.
- Get advice on the classification before your appeal deadline runs, since appeal timelines are generally short and unforgiving.
- If in doubt, treat the situation as urgent — sorting out the right appeal route after a deadline has passed is a much harder problem than sorting it out before.
Frequently asked questions
Is a decision on a motion always interlocutory?
Generally, yes, if it addresses a procedural or preliminary issue without resolving the underlying dispute — but not every motion decision fits neatly into that pattern, so each order should be assessed on its own terms.
Can an interlocutory order still be appealed?
Sometimes, but often only with the court's permission, unlike many final orders. The specific requirements depend on the nature of the order and the appeal route involved.
Why does it matter which court I appeal to?
Appealing to the wrong court can result in delay or, in some cases, the appeal being dismissed on a technical basis — sorting out the correct route from the start avoids that risk entirely.
What if my case has both final and interlocutory elements?
This does happen — for example, when a court resolves one claim in a multi-claim lawsuit but not others. These situations require careful, case-specific analysis of what has actually been decided.
This is a litigation question
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