- Suing over an online marketplace scam is legally possible — through breach of contract, fraud/deceit, or unjust enrichment — but the practical challenge is usually identifying and locating the person who took your money.
- Once accepted, an Interac e-Transfer generally cannot be reversed or recalled — not by you, and not by your bank.
- Unlike credit cards, e-Transfers are not covered by zero-liability fraud protection, so a chargeback usually is not an option once funds are accepted.
- A credit card chargeback, where available, is often faster and more effective than suing — try this route first if you paid by credit card.
- Reporting to the Canadian Anti-Fraud Centre and local police does not prevent you from also pursuing a civil claim — the two are separate tracks.
- Before filing, honestly assess whether you can actually identify the defendant and whether they have anything worth collecting from.
The Short Answer
Yes, you can legally sue someone in Ontario Small Claims Court over an online purchase scam or e-Transfer fraud. The harder question is almost always practical, not legal: can you actually identify who took your money, locate them to serve a claim, and collect anything if you win? This guide walks through the legal basis and the realistic path forward.
What Counts as an Online Purchase Scam
- Paying for an item on a marketplace platform that is never delivered
- Receiving a materially different or fake item than what was advertised
- Being pressured into an e-Transfer payment outside the platform's normal process
- Fake seller or buyer profiles designed to extract payment without any intention of completing the transaction
The Legal Basis for Suing
Legally, a scam victim generally has more than one possible cause of action:
- Breach of contract — if a purchase agreement, even an informal one, was not honoured
- Fraud or deceit — where the other party knowingly misrepresented the transaction to induce payment
- Unjust enrichment — where the scammer was enriched at your expense with no valid legal basis for keeping the money
Online marketplace transactions are rarely documented with a formal written contract, but that does not prevent a claim. See our guide on suing without a written contract in Ontario for how messages, payment records, and conduct can establish your case.
The Real Challenge: Identifying the Defendant
To sue someone, you need their real legal name and an address where they can be served. Online marketplace transactions frequently involve nothing more than a username and a profile photo — far short of what is needed to properly name and serve a defendant. Without this information, a lawsuit generally cannot proceed, regardless of how strong your underlying claim is.
If you genuinely cannot locate the person, see our guide on substituted service in Ontario Small Claims Court — though this still requires having some real information to work from.
Jurisdiction: Where Is the Scammer Actually Located?
If the person is located outside Ontario — or outside Canada entirely — pursuing a claim becomes significantly more complicated, and even a successful Ontario judgment may be practically impossible to enforce against someone with no assets or presence in the province.
The E-Transfer Reality
Once an Interac e-Transfer has been accepted by the recipient, it generally cannot be reversed or recalled — not by you, and not by your bank. Unlike credit cards, e-Transfers are not covered by zero-liability fraud protection, meaning the sender bears the risk if the recipient turns out to be fraudulent.
Try a Chargeback First, If You Paid by Card
If you paid by credit card rather than e-Transfer, a chargeback through your card issuer is often the faster, less expensive, and more realistic path to recovering your money — since it does not require identifying or serving the scammer at all. Contact your card issuer promptly, since chargeback windows are time-limited.
Should You Report to Police First?
Yes — reporting to your local police and the Canadian Anti-Fraud Centre is worth doing regardless of whether you also pursue a civil claim. These are separate, parallel tracks: a criminal investigation addresses the fraud itself, while a Small Claims Court action addresses your right to recover the money. Reporting can also sometimes generate information useful to a civil claim.
When Suing Actually Makes Sense
| Scenario | Suing Is Realistic? |
|---|---|
| You know the person's full legal name and address | Yes |
| The person is local and appears to have assets or income | Yes |
| You only have a username and profile photo | Not without more information first |
| The person is likely outside Canada | Very difficult to enforce even if you win |
Practical Steps to Build Your Case
- Save everything immediately — screenshots of the listing, all messages, and payment confirmations.
- Try a chargeback if you paid by credit card.
- Report to police and the Canadian Anti-Fraud Centre.
- Attempt to confirm the person's real identity through any available information — payment records sometimes include a legal name.
- Only proceed with a claim once you have enough information to realistically identify and serve a defendant.
Common Mistakes
Once accepted, it generally can't — don't delay other recovery efforts assuming your bank can simply pull the money back.
Without a real name and address, a claim generally cannot proceed to service, let alone judgment.
Card issuers have time-limited windows for disputing a charge — act quickly if this option is available to you.
Screenshots and records taken right away are far more persuasive than a reconstructed account weeks later.
Scammed in an online transaction and unsure of your realistic options? Call our Toronto litigation lawyers at 416-274-2222 for a free consultation.
Frequently Asked Questions
Yes, legally you can — through a breach of contract claim, a fraud/deceit claim, or unjust enrichment. The bigger practical hurdle is usually identifying who the person actually is and whether they can be found and served, since online marketplace transactions often involve minimal verified identity information.
Usually not, once the transfer has been accepted by the recipient. Interac e-Transfers are generally irreversible once accepted — neither you nor your bank can recall the funds, unlike some credit card transactions.
Often, yes, where available. A chargeback through your credit card company is typically faster, less expensive, and does not require identifying or locating the seller — try this route first if you paid by credit card rather than e-Transfer or cash.
Ideally, their full legal name, a physical address for service, and some way to confirm their identity — a username or profile alone is generally not enough to properly name and serve a defendant. Marketplace platforms and payment providers may have some information, though obtaining it can be difficult.
No, these are separate, parallel processes. Reporting to your local police and the Canadian Anti-Fraud Centre addresses the criminal side of fraud, while a Small Claims Court action addresses your right to recover the money — you can pursue both.
This significantly complicates matters. Suing someone outside Ontario, or outside Canada, raises jurisdiction and enforcement challenges — even a successful Ontario judgment may be difficult or impossible to enforce against someone with no assets or presence in the province.
Generally, no — you cannot properly serve a claim on someone you cannot identify or locate. In these situations, focus first on any chargeback options, reporting to authorities, and preventing further loss, rather than pursuing a lawsuit that cannot realistically proceed.
Screenshots of the listing, all messages exchanged, payment confirmations, the recipient's name and contact information as provided, and any shipping or delivery information — the more you document contemporaneously, the stronger your position if you do pursue a claim or a chargeback.
Generally, this is very difficult. Most platforms operate under terms of service that significantly limit their liability for transactions between users, and they are not typically a party to the actual sale — your claim is generally against the individual scammer, not the platform.
Unjust enrichment is a legal claim available where one party has been enriched at another's expense, without a valid legal reason — it can apply where a scammer received payment for goods or services never provided, giving you a potential legal basis to recover the money even without a formal written contract.