Defamed online?
Can you sue?

By Jonathan Kleiman, Barrister & Solicitor · Published June 2026

Few things get a business owner reaching for a lawyer faster than a one-star review with a lie in it. Someone you have never served leaves a Google review accusing you of fraud; a former employee posts something untrue on Facebook; a competitor tells your customers you are dishonest. It feels personal, it can cost you money, and the instinct is to sue. So the question I get is direct: can I sue for defamation — for a bad online review — in Small Claims Court?

The short answer is yes, you can bring a defamation claim in Ontario's Small Claims Court, as long as what you are claiming fits within its $50,000 limit. But the honest answer is more cautious than the short one. Defamation is one of the most technically difficult areas of civil law, the defences available to the other side are powerful, and a lot of "bad review" claims that feel like slam dunks quietly fall apart once a defence like truth or fair comment is raised.

Below I will walk through how defamation actually works in Ontario — libel versus slander, the three things you must prove, the defences you will run into, and one notice trap that can sink a claim before it starts. None of this is legal advice for your specific situation, and given how complex this area is, a defamation claim really should be assessed by a lawyer before you file. But it should give you a realistic picture of what you are walking into.

Understanding defamation: libel vs slander

Defamation is the legal label for a false statement that damages someone's reputation. It splits into two old-fashioned categories, and the difference is simply the form the statement takes.

Libel is defamation in a permanent or recorded form — written words, a published post, an email, a photo, a recording. Almost every online dispute is libel, because a Google review, a Facebook comment, a tweet, or a Reddit post is written and recorded. That matters, because for libel the law generally presumes some general damages once you prove the basics, so you do not have to itemize an exact dollar loss to recover something (though real, provable harm pushes the number up).

Slander is spoken defamation that is not recorded — words said out loud at a meeting, on a phone call, across a counter. Slander is harder to run, because you usually have to prove actual loss, and because spoken words leave no tidy record to put in front of a judge.

For the rest of this article I will focus mostly on libel, since the bad-review and online-post scenarios that bring people to my office are nearly always written and published. The good news is that "permanent and recorded" also means there is a screenshot to capture — and evidence is everything in these cases.

Does an online review count as libel?

Generally, yes. A written, published online review is a classic example of libel — it is recorded, it persists, and anyone can read it. That is helpful for the form of your claim. What it does not do is decide whether the review is actually defamatory or simply unflattering opinion, which is a separate and much harder question I get into below.

From my experience

From my experience, the gap between how strong a defamation case feels and how strong it actually is can be enormous. A client will come in genuinely wounded — and rightly so — by a review that is unfair and hurtful. But "unfair and hurtful" is not the legal test. The first thing I do is read the exact words, slowly, and ask: is this a false statement of fact, or is it someone's honest opinion about a real experience? Those two things look similar on the page and are worlds apart in court.

I have seen reviews that look devastating turn out to be well-protected opinion, and I have seen short, almost throwaway lines — "this person took my money and disappeared," stated as fact when it was not true — that are far more actionable than the client expected. The wording is everything. One sentence framed as fact can carry a claim; a paragraph of venting framed as opinion often cannot.

The other pattern I see constantly is the expectation of a big payday. People imagine a bad review translates into a large cheque. In reality, modest online-post claims tend to produce modest results, the defences are real, and the fight can cost more in time and stress than the outcome is worth. Part of my job, honestly, is talking some clients out of suing and into a smarter, cheaper fix.

What the law generally says

Let me lay out the framework, because once you see it, you can usually tell pretty quickly whether your situation has legs. There are three elements you have to establish, a set of strong defences the other side can raise, and a couple of procedural quirks unique to defamation.

The three elements you must establish

To make out a defamation claim, a plaintiff generally has to show three things:

• The statement is defamatory. It would tend to lower your reputation in the eyes of reasonable people — make ordinary people think less of you. A merely embarrassing or annoying statement is not enough; it has to bite at your reputation.
• It refers to or identifies you. The statement has to be about you, the plaintiff. It does not have to name you outright — if reasonable readers would understand it to point at you, that can be enough — but it cannot be a vague complaint about no one in particular.
• It was published to a third party. The words must have reached at least one person other than you. An insulting email sent only to you is not published in this sense; a public review that the world can read plainly is.

For libel, once those elements are met, general damages are generally presumed — meaning you do not have to prove a precise dollar loss to recover. But do not read that as a guaranteed windfall. Presumed damages can be modest, and evidence of real harm is what raises them.

The defences — and why they matter so much

Here is where a lot of hopeful claims run into a wall. The defences in defamation are strong and common, and any one of them can defeat your claim even if the words genuinely hurt you:

• Truth (justification). A true statement is not defamation, period. If what they said is substantially true, the claim fails. This is the single most important defence to think about honestly before you sue.
• Fair comment / honest opinion. An honestly held opinion, based on true facts, on a matter of public interest is protected. This is why so many "the service was terrible" reviews are untouchable — they read as opinion, not as false fact.
• Qualified or absolute privilege. Certain statements made in protected settings are shielded, sometimes completely.
• Responsible communication on matters of public interest. A defence that can protect statements on issues of genuine public concern, where the publisher acted responsibly.

Because these defences are so robust, an honest negative review or a genuinely held opinion is often defensible — which is exactly why many bad-review claims fail. Before you spend a dollar suing, you should assume the other side will raise truth and fair comment, and ask whether your case still stands.

The Libel and Slander Act notice quirk

There is a procedural trap unique to defamation that catches people off guard. Under the Libel and Slander Act, a special rule applies to defamation in a newspaper or broadcast that originates in Ontario. In that situation, the plaintiff must give written notice of the specific words complained of within six weeks of learning of them, and must sue within three months. Those are tight, unforgiving deadlines.

The crucial point for most online disputes: this special notice and short limitation generally do not apply to an ordinary online post, a social-media comment, or a typical Google review, because those are usually not a "newspaper" or a "broadcast." For those, the normal two-year limitation period generally applies instead. That said — and this is important — whether a given online publication counts as a newspaper or broadcast can genuinely be argued, so do not simply assume which regime applies. Confirm it before you rely on it.

Anti-SLAPP motions are not available in Small Claims Court

One more wrinkle worth knowing. In the Superior Court, a defendant sued over speech can bring an anti-SLAPP motion under the Courts of Justice Act to have a defamation claim dismissed early if it targets expression on a matter of public interest. These motions are a serious obstacle for plaintiffs and can end a case quickly, with costs.

Anti-SLAPP motions are not available in Small Claims Court. That is a real tactical consideration: a plaintiff with a modest, genuine claim may be better off keeping it in Small Claims, where the defendant cannot deploy that early-dismissal weapon. It is not a reason to sue on a weak case — the underlying defences still apply — but it is a factor that can favour keeping a legitimate, modest claim in the lower court.

Common situations I see

Most defamation questions that come through my door fall into a few recognizable shapes, and each has its own pitfalls.

The false Google or Facebook review. A reviewer states something as fact that is simply untrue — that you never delivered, that you stole a deposit, that you are running a scam — when none of it happened. If it is a false statement of fact that identifies you and is published, you may well have a claim. The catch is separating the false-fact part from the opinion part of the same review. Courts protect "I was unhappy with the work"; they do not protect "this contractor committed fraud" when it is false.

An ex-employee's online post. A former employee, often unhappy about how things ended, posts publicly that you are abusive, dishonest, or breaking the law. Some of this can be opinion about a workplace; some can be false statements of fact that cross into defamation. These are emotionally charged and legally mixed, and the wording matters enormously.

A competitor's lie. A competitor tells your customers or posts that your product is fake, that you cheat people, or that you are insolvent, when it is untrue. Because this is often stated as fact and aimed squarely at your business reputation, it can be among the more actionable scenarios — though competitors will still argue truth or fair comment, so the evidence has to be there.

What you must prove — and what defendants argue back

It helps to picture the case as a back-and-forth. You carry the burden of the three elements; then the defendant gets to push back with defences, and a single good defence can end the matter.

Your side of the ledger is the three elements above: the statement is defamatory, it identifies you, and it was published. For a written review or post, publication and identification are usually easy to show. The real battleground is almost always whether the statement is genuinely defamatory — a false statement of fact — or merely an unflattering opinion.

The defendant's side is where claims live or die. Expect them to argue truth: that what they wrote is substantially accurate, so it cannot be defamation. Expect them to argue fair comment: that it was an honestly held opinion, based on true facts, about something of public interest — a particularly strong shield for reviews, which are practically built to read as opinion. If they can make either stick, you can lose even though the words were hurtful and the experience felt unjust.

This is the honest core of defamation: proving someone said something nasty is not enough. You have to show it was a false statement of fact, that it hurt your reputation, and that no defence rescues it. That is a meaningfully higher bar than people assume, and it is the reason I always read the exact words before I will say a word about prospects.

The notice trap: newspaper/broadcast vs ordinary online posts

I want to come back to the notice issue, because it is the kind of technicality that quietly ruins otherwise viable claims, and it is easy to get wrong.

If your complaint is about something published in a newspaper or broadcast originating in Ontario, the Libel and Slander Act clock is brutal: written notice of the exact words within six weeks of learning of them, and a lawsuit within three months. Miss those and you may be out of luck regardless of how strong the underlying claim was.

If your complaint is about an ordinary online post — a Google review, a Facebook comment, a tweet — that special regime generally does not apply, and you usually fall under the normal two-year limitation period under the Limitations Act, 2002. That is far more breathing room.

The danger is the grey zone in between. Some online publications could be argued to be a "newspaper" or "broadcast," and the question is not always obvious. So my practical advice is the conservative one: figure out your dates early, do not assume the generous two-year window, and if there is any chance the tighter rule applies, treat the deadline as short. You can sanity-check the ordinary limitation timeline with the Ontario limitation period calculator, but when a defamation deadline is in play, this is a spot to get advice rather than guess.

Important evidence in a defamation claim

Defamation cases are won and lost on evidence, and because the statement is written, much of that evidence is capturable — if you move quickly before it is edited or deleted.

• Screenshots of the exact words. Capture the post or review in full, with the date, the username, and the surrounding context. Words get edited and deleted; a clean, time-stamped screenshot preserves what was actually said. If you can, capture the URL too.
• Proof it was published and who saw it. A public review is plainly published, but anything showing reach — view counts, that customers mentioned it, that it appeared in search results for your name — helps establish both publication and harm.
• Evidence of the harm. This is what raises damages above the presumed minimum. Cancelled orders, customers who walked away citing the post, a lost job, a measurable dip in business after it went up. Concrete harm turns an abstract claim into a quantified one.
• Proof the statement is false. Since truth is the strongest defence against you, be ready to show, with documents, that the factual claim is wrong — the contract, the proof of delivery, the records that contradict the accusation.

The single most common evidence mistake I see is waiting. People stew over a review for weeks, and by the time they act, it has been edited or pulled and the original wording is gone. If you think you may have a claim, screenshot everything first, then decide what to do. The evidence that actually wins in Small Claims Court follows the same principle: organized, contemporaneous proof beats memory every time.

Common mistakes I see

A few recurring errors turn what might have been a manageable problem into a wasted, expensive fight. These are the ones I flag most often.

Suing over an honest negative opinion. This is the big one. A genuinely held, unflattering opinion based on a real experience is usually protected by fair comment. Suing over "I thought they were rude and overpriced" is, in my experience, a losing proposition — and it can draw more attention to the very review you wanted buried.

Missing the notice or limitation deadline. Whether it is the six-week newspaper/broadcast notice or the ordinary two-year limitation, blowing the deadline ends a case no matter how good it was. People assume they have years; sometimes, depending on the publication, they have weeks. Check the dates first.

Expecting a fortune. A bad review feels like it cost you everything, but modest online-post claims tend to produce modest awards, and Small Claims caps recovery at $50,000 regardless. If you are chasing a windfall, you will likely be disappointed; if you want the lie corrected and removed, there are often better tools than damages.

Picking the wrong forum or strategy. Some reputation cases genuinely belong in the Superior Court rather than Small Claims Court, and some should not be litigated at all. Charging into court before weighing a takedown demand, the defences, and the realistic value is the mistake underneath most of the others.

What happens in court

If you do proceed, a defamation claim runs through the same Small Claims process as any other case, and it is worth knowing the shape of it before you start. You file a Plaintiff's Claim setting out the words complained of, when and where they were published, and the harm. You serve the defendant, who has a flat 20 days to file a Defence — and in a defamation case, that Defence will almost certainly plead truth, fair comment, or both.

From there, a defended case goes to a mandatory settlement conference before any trial, where a deputy judge gives both sides a candid read and tries to broker a resolution. Many cases end there. If it does not settle, you wait for a trial date, and at trial you will have to prove your three elements while the defendant runs its defences. Because defamation turns so heavily on the precise words and their context, these trials can be more nuanced than a simple debt dispute, which is another reason the exact wording and your evidence matter so much.

For a broader sense of who and what you can actually bring to this court, my guide on whether you can sue anyone for anything in Small Claims Court gives useful context — the honest answer there, as here, is "within limits."

Settlement considerations: a takedown demand often beats a lawsuit

Here is the advice I give most often, and it surprises people: in many defamation situations, what you actually want is not a judgment — it is for the false statement to come down and stop doing damage. And a lawsuit is frequently the slowest, most expensive way to get there.

A well-drafted retraction or takedown demand — a firm letter setting out the false statements, demanding they be removed or corrected, and signalling that you are prepared to act — often resolves the problem faster and far more cheaply than litigation. People underestimate how often a serious letter, on its own, gets a review edited or deleted. You can see how I approach these in how to write a demand letter in Ontario, and you can draft a starting point with the Ontario demand letter generator.

Settlement also lets you get something a court often cannot order cleanly: the actual removal of the post. A negotiated resolution can include a takedown, an apology, or a correction — outcomes that fix the real-world harm, where a damages award just hands you money while the words may linger. Because defamation defences are so strong and outcomes so uncertain, a negotiated takedown is frequently the smartest, most economical path. It is the first option I explore with almost every client before anyone talks about filing.

Key takeaways

• Yes, you can sue — within limits. Defamation, libel or slander, can be brought in Small Claims Court up to $50,000; bigger reputation cases belong in the Superior Court.
• You must prove three things. That the statement is defamatory, that it identifies you, and that it was published to a third party — and for libel, general damages are generally presumed.
• The defences are strong. Truth and fair comment defeat many claims, which is why an honest negative opinion is usually not worth suing over.
• Mind the notice trap. A newspaper or broadcast triggers a six-week notice and three-month deadline; ordinary online posts generally fall under the normal two-year limitation — but confirm which applies.
• A takedown demand often beats a lawsuit. What you usually want is the post removed, and a firm demand letter is frequently cheaper, faster, and more effective than litigation.

Frequently asked questions

Can I sue for defamation in Small Claims Court in Ontario?

Yes, you can. A defamation claim — whether libel or slander — can be brought in Ontario's Small Claims Court, provided what you are claiming falls within the court's $50,000 monetary limit. For many bad-review and online-post disputes, that limit is more than enough. If your reputation case is genuinely worth more than $50,000, it belongs in the Superior Court instead. Defamation law is complex and the defences are strong, so before you file I would have the claim assessed by a lawyer to see whether it is realistically winnable.

What is the difference between libel and slander?

Both are forms of defamation; the difference is the form the statement takes. Libel is defamation in a permanent or recorded form — written words, a published post, a Google review, an email, a photo or a recording. Slander is spoken defamation that is not recorded, such as something said out loud at a meeting. The practical distinction matters because for libel, general damages are generally presumed once you prove the basics, whereas slander often requires you to show actual loss. Most online-review disputes are libel, since the words are written and published.

Can I sue over a bad Google or Facebook review?

Sometimes, but it is harder than people expect. You can sue if the review contains a false statement of fact that lowers your reputation, identifies you, and was published to others. But if the review is an honestly held negative opinion based on a real experience, the defence of fair comment often protects it, and the claim may fail. Courts draw a line between "this business cheated me" stated as a fact that is untrue, and "I felt the service was terrible," which reads as opinion. Have the specific wording assessed before suing.

What do I have to prove in a defamation claim?

You generally have to establish three things. First, that the statement is defamatory — that it would tend to lower your reputation in the eyes of reasonable people. Second, that it refers to or identifies you, even if not by name. Third, that it was published to at least one person other than you. For libel, you usually do not have to prove a specific dollar loss because general damages are presumed, though real evidence of harm raises the damages. Meeting these three elements is only the start — the defendant can still raise strong defences.

Is a negative opinion defamation?

Usually not. Defamation targets false statements of fact, not honest opinion. An honestly held negative opinion, based on true facts, on a matter of public interest is generally protected by the defence of fair comment. So "I thought the food was bland and overpriced" is opinion and very hard to sue over, while "the owner stole my deposit" stated as fact, when untrue, can be defamatory. The line is not always obvious, and how a court reads a particular sentence can be argued both ways, which is one reason many bad-review claims do not succeed.

What defences can the other side raise?

The defences in defamation are powerful and common, which is why these claims are riskier than they look. The big one is truth, also called justification — a true statement is not defamation, full stop. Next is fair comment, which protects an honestly held opinion based on true facts on a matter of public interest. There is also qualified or absolute privilege, which protects statements made in certain protected settings, and responsible communication on matters of public interest. If any defence applies, your claim can fail even if the words stung. Assess the defences before you sue.

Is there a notice deadline for a defamation claim — the Libel and Slander Act?

There can be, but it depends on where the words appeared. Under the Libel and Slander Act, a special rule applies to defamation in a newspaper or broadcast that originates in Ontario: you must give written notice of the specific words complained of within six weeks of learning of them, and sue within three months. That special, short window generally does not apply to an ordinary online post, social-media comment, or a typical Google review, where the normal two-year limitation usually applies instead. Whether a given online publication counts as a "newspaper" or "broadcast" can be argued, so confirm before you rely on it.

How long do I have to sue for defamation in Ontario?

For most ordinary online posts, comments, and reviews, the normal two-year limitation period under the Limitations Act, 2002 applies, running from when you discovered or ought to have discovered the claim. The important exception is defamation in a newspaper or broadcast originating in Ontario, where the Libel and Slander Act imposes a much shorter timeline — written notice within six weeks and a lawsuit within three months. Because the categories can be argued, do not assume which deadline applies. Check your dates early with a limitation period calculator and get advice if there is any doubt.

How much can I get for defamation in Small Claims Court?

I will not put a number on it, because defamation damages turn entirely on the facts — what was said, how widely it spread, and how much real harm it caused. For libel, general damages are generally presumed, so you need not prove an exact dollar figure, but evidence of concrete harm — lost customers, lost a job, real reputational damage — pushes damages higher. Whatever the figure, Small Claims Court caps recovery at $50,000. People often expect a large windfall from a bad review; realistically, modest online-post claims tend to produce modest awards.

Should I get a lawyer for a defamation claim?

For defamation, I would strongly recommend at least a consultation before you file. This is one of the more technically difficult areas of civil law: the elements are specific, the defences are strong, and there are notice traps that can quietly sink a claim. A lawyer can tell you whether the words are actually defamatory or just unflattering opinion, whether a defence likely applies, and which deadline governs. Often the better first move is a retraction or takedown demand rather than a lawsuit — cheaper, faster, and frequently more effective at fixing the actual problem.

Final thoughts

A false review or a public lie about your business is a genuine wrong, and Ontario law does give you a path to respond. You can bring a defamation claim in Small Claims Court, and in the right case — a false statement of fact, clearly about you, clearly published, with no defence to rescue it — that path can work. The keeping-it-modest-and-out-of-anti-SLAPP-territory point is a real advantage of the lower court for a legitimate, modest claim.

But I would be doing you a disservice if I did not stress the other half. Defamation is hard. The defences are powerful, the line between false fact and protected opinion is subtle, the notice rules have teeth, and the awards in modest online-post cases are rarely the windfall people imagine. More often than not, the better first move is a sharp retraction demand, not a Statement of Claim. If you want to weigh the dollars-and-cents reality, my guide on whether it is worth suing for a few thousand dollars applies just as much here — and if the harm is more reputational than financial, that calculus shifts again.

Because this area is so technical, the single most useful thing you can do is have the actual words assessed by a lawyer before you commit to anything — including whether a related claim, such as one for emotional distress in Small Claims Court, even fits. If a business reputation or competitor problem has grown beyond a single review, a commercial litigation lawyer can map the options, from takedown to court.

If you are dealing with a false review or a damaging post and you want an honest read on whether you have a claim — and whether suing is even the smart move — call 416-554-1639 or book a free consultation. A short conversation can usually tell you whether to draft a demand, file a claim, or let it go.