Most people who come to Small Claims Court already know they're upset about something. Fewer have actually stopped to test whether what happened adds up to a claim a court can act on. That gap is worth closing early — before a demand letter, before a filing fee, before any of it.
This is different from "can I sue?"
It's easy to blur two separate questions together. Whether Small Claims Court is the right venue for your dispute — the monetary limit, the type of dispute, who can sue — is covered in can I sue in Ontario Small Claims Court? This page is about something more fundamental: even assuming you're in the right place, do the actual facts of your situation support a real, provable claim? You can be perfectly eligible to file and still not have a strong case — and this is the step where you find that out before you invest more time.
Start by naming the problem specifically
Write one or two plain sentences: who did what, when, and what it cost you. Not how it made you feel — what actually happened. If you can't state it that simply, that's useful information on its own; it usually means the situation needs more thought before it's ready to become a claim.
Compare "my contractor ripped me off" with "the contractor was paid $4,200 to install kitchen cabinets on May 3, and the cabinets were never installed." The second version is specific, dated, and points directly to evidence. The first is a feeling looking for a case.
The four building blocks of a claim
Most viable Small Claims Court cases share the same underlying structure, whether it's an unpaid invoice or a botched repair job:
- An agreement or duty. There was some kind of understanding — a contract, a purchase, a promise, or a general obligation not to damage someone else's property — that defined what was supposed to happen.
- A breach. That agreement or duty wasn't honoured — payment wasn't made, work wasn't done properly, or something was damaged that shouldn't have been.
- A loss. The breach actually cost you something measurable — money, value, or a specific, quantifiable harm.
- A connection between the two. Your loss needs to actually flow from the breach, not from something unrelated. If the connection is muddy, so is your claim.
If you can point to all four clearly, you very likely have a claim. If one is missing or shaky, that's exactly where to focus before doing anything else.
Applying it: a worked example
Take the kitchen cabinet example from earlier and run it through the four building blocks:
- Agreement or duty: A signed quote for $4,200 to supply and install kitchen cabinets, with a completion date.
- Breach: Payment was made in full, but the cabinets were never installed, and the contractor stopped responding after the deadline passed.
- Loss: The $4,200 paid, and potentially the extra cost of hiring someone else to finish the job.
- Connection: The loss flows directly from the breach — the money was paid specifically for work that was never done.
Every element is specific and checkable against a document (the signed quote, the proof of payment, and the dated communication). That's what turns "my contractor ripped me off" into a claim that's actually ready to prepare.
Now compare a weaker version of the same story: no signed quote, a cash payment with no receipt, and a vague sense that the work "wasn't what was promised." The underlying grievance might be just as real, but there's far less here for a court to work with — which is exactly why it's worth strengthening these points before filing, not after.
Do you have evidence to back it up?
A true story without evidence is still a hard case to win. Before you go further, take stock of what you can actually show a judge:
- Contracts, invoices, receipts, or purchase confirmations.
- Written communication — emails, texts, messages — especially anything where the other side acknowledges what happened.
- Photos, videos, or inspection reports, particularly for property damage or defective work.
- Names of anyone who witnessed what happened or can independently confirm part of your account.
If you're relying entirely on your own memory of a verbal conversation with nothing to back it up, your claim isn't necessarily hopeless, but it is weaker — and it's worth being honest with yourself about that going in, rather than discovering it for the first time at a settlement conference.
Is there a real, specific dollar amount?
Small Claims Court exists to resolve disputes about money, property, or services, which means your claim needs to land on an actual number — not a vague sense that you're owed "a lot" or that something was "unfair." Round, unsupported figures are among the easiest things for a defendant (or a judge) to push back on.
If you're not sure how to arrive at a number, work backward from documentation: the unpaid portion of an invoice, a repair estimate, the cost to replace something damaged, or the value of what you paid for but never received. A number you can trace back to a document is far stronger than one you simply feel is fair. If your dispute is with a photographer, venue, or other wedding vendor, the wedding vendor dispute calculator is built specifically for arriving at that number.
Is someone actually at fault?
Not every loss is someone else's legal responsibility. A supplier who couldn't deliver because of a genuine, unforeseeable event is a different situation from one who simply didn't bother. Ask yourself honestly whether the other side did something they were supposed to do (and didn't), or failed to do something they had a duty to do — as opposed to a situation that was simply unfortunate for everyone involved, including them.
This isn't about being certain you'd win — that's what the court process is for. It's about making sure there's a genuine basis for holding someone responsible before you ask a court to decide that they are.
A five-question self-test
- Can I state what happened in one or two plain, factual sentences?
- Was there a clear agreement, purchase, or duty that wasn't honoured?
- Do I have at least some documentation or evidence beyond my own memory?
- Can I point to a specific dollar amount, and explain how I got that number?
- Is there a real reason to believe the other side — not bad luck — caused my loss?
Answering "yes" to most or all of these is a strong sign you have a claim worth preparing. A few "no" answers don't necessarily end things, but they tell you exactly what to shore up before you file.
What separates a strong claim from a weak one
Strong claims tend to be specific, documented, and proportionate — a clear story, backed by paper, asking for an amount that matches the actual loss. Weak claims tend to be vague, undocumented, emotionally framed, or inflated relative to the actual harm. Neither guarantees an outcome, but the difference significantly affects how a settlement conference and a trial are likely to go, and how quickly the other side takes you seriously.
It's worth noting that "strong" and "certain to win" aren't the same thing — plenty of strong claims still involve some genuine dispute about the facts. What you're aiming for here is a claim that's well-founded and provable, not one that's beyond any argument.
Once you've confirmed you have a claim
If you've worked through the above and you're confident you have a real, documented, specific claim, the next practical steps are sending a demand letter, and then starting a Small Claims Court case if that doesn't resolve things. Keep everything you've gathered here — it's the same material you'll use to prepare your claim and, eventually, your case for a settlement conference or trial.
When it's worth reconsidering
Sometimes working through this process reveals that a situation isn't as clear-cut as it felt initially — the amount is small relative to the effort involved, the evidence is thin, or fault is genuinely unclear. That's a useful thing to learn now rather than after filing. Reconsidering doesn't mean you have no options: a direct conversation, a written demand, or simply deciding the dispute isn't worth pursuing further are all legitimate outcomes of this step.
Common mistakes to avoid
- Confusing feeling wronged with having a provable claim. Both can be true, but only one is what a court decides.
- Skipping straight to filing without gathering documentation first.
- Picking a round number instead of one traceable to specific documentation.
- Ignoring gaps in the story — a missing date, an unclear responsibility — hoping they won't matter later.
- Assuming a lack of response from the other side proves fault, rather than confirming it independently.
Frequently asked questions
What if I'm missing some evidence but I'm confident I'm right?
Being right and being able to prove it are different things in a court setting. If you're missing key evidence, spend time trying to recover or recreate it (old emails, bank records, witnesses) before you file, rather than assuming your account alone will be enough.
Does a verbal agreement count if there's nothing in writing?
Verbal agreements can still form the basis of a claim, but they're harder to prove. Look for anything that indirectly confirms it — a payment that matches what was agreed, a text referencing the arrangement, or a witness to the conversation. See suing for breach of a verbal agreement for how to build that kind of case specifically.
What if more than one person contributed to what went wrong?
It's possible for responsibility to be shared. This doesn't necessarily prevent a claim, but it's worth thinking through who the appropriate defendant (or defendants) actually are before you file.
Is it worth pursuing a claim for a smaller amount of money?
That's a personal judgment call weighing the amount against your time, the filing fee, and the effort involved. A strong, well-documented smaller claim can still be entirely worth pursuing — it depends on your own priorities.
How much time should I spend on this step before moving forward?
Enough to honestly answer the five-question self-test above and gather the obvious documents you already have. This step is meant to sharpen your case quickly, not delay it indefinitely — if you're confident in your answers, move on to a demand letter.
Should I talk to the other side before deciding I have a claim?
Often, yes. A direct conversation sometimes clarifies facts you're missing, and it can also serve as an early version of the demand letter step — see demand letters for how to formalize that.