California’s defamation laws let you sue someone for a false statement of fact that damaged your reputation, whether the statement was written (libel) or spoken (slander). To win, you have to prove the defendant communicated a false factual statement to at least one other person, was at fault in doing so, and caused you harm. Before you file, you also need to understand three things that catch most plaintiffs off guard: a one-year deadline, several categories of legally privileged speech you cannot touch, and an anti-SLAPP statute that can force you to pay the defendant’s legal fees if your claim is weak.
What You Have to Prove
Civil Code section 44 defines defamation as either libel or slander, and both forms share the same core elements.1California Legislative Information. California Code Civil Code 44 – Defamation You must show:
- A false statement of fact. The statement must be provably false and presented as fact, not opinion. Vague insults and obvious hyperbole don’t count.
- Publication. Someone other than you saw or heard it. One other person is enough.
- Fault. At minimum, the defendant was negligent about whether the statement was true. Public figures have to prove more, discussed below.
- Damages. The statement harmed you. Sometimes the law presumes harm; sometimes you have to document specific losses.
Pure opinion is protected by the First Amendment and cannot support a defamation claim. Courts look at the specific language, tone, and context to decide whether a reasonable reader or listener would take the statement as an assertion of fact. Factually specific, earnest statements are more likely to be actionable; informal, hyperbolic, or clearly subjective ones usually aren’t.
Libel vs. Slander: Why It Matters for Damages
The written-versus-spoken distinction changes what you have to prove about harm.
Libel
Libel covers false statements in writing, images, or any other fixed form, which includes social media posts, online reviews, and printed articles.2California Legislative Information. California Code Civil Code 45 – Libel If the statement is defamatory on its face, meaning any reader would understand the harm without needing outside information, the law presumes you were injured and you don’t have to prove a specific dollar loss.
Civil Code section 45a carves out an exception. If the statement is only defamatory when the reader knows some additional fact, you have to prove “special damages,” meaning actual, measurable financial losses.3California Legislative Information. California Code Civil Code 45a A post saying “Jane was fired from Acme Corp” is only defamatory to readers who know she still works there. That kind of claim requires concrete proof of financial harm.
Slander
Slander covers spoken statements and other transient communications, including live broadcasts.4California Legislative Information. California Code Civil Code 46 – Slander Slander usually requires proof of special damages, with one important exception: slander per se. Civil Code section 46 lists four categories where harm is presumed:
- Falsely accusing someone of a crime
- Claiming someone has a contagious or loathsome disease
- Statements that directly harm someone in their profession or business
- Falsely claiming someone is unchaste or impotent
If the spoken statement fits one of these categories, you can recover general damages without documenting a specific financial loss.
The Higher Bar for Public Figures
If you are a public figure, or if the statement involves a matter of public concern, the First Amendment raises what you have to prove. Under New York Times Co. v. Sullivan (1964), public officials and public figures must prove “actual malice,” meaning the defendant knew the statement was false or acted with reckless disregard for the truth.
Public figures fall into two groups. All-purpose public figures have widespread fame or influence, like politicians and celebrities. Limited-purpose public figures are people who voluntarily inject themselves into a specific public controversy, and the higher standard applies only to statements about that controversy.
Private figures only have to prove negligence, which is a much easier standard. But under Gertz v. Robert Welch, Inc. (1974), even a private figure must prove actual malice to recover punitive damages when the statement addresses a matter of public concern.
Privileged Statements You Cannot Sue Over
Some communications are legally protected under Civil Code section 47, even when they are false and damaging.5California Legislative Information. California Code CIV 47 – Privileged Publication or Broadcast
The absolute privilege covers statements made in legislative, judicial, or other official government proceedings. Court filings, testimony, and statements to government bodies are shielded regardless of truth or motive, and the protection extends to witnesses, attorneys, parties, and judges.
The qualified privilege under section 47(c) covers communications made without malice between people who share a legitimate interest in the information. The most common example is a job reference: a current or former employer who, without malice, responds to a prospective employer’s inquiry about a former employee is protected. Unlike the absolute privilege, this one can be defeated if the plaintiff shows malice or that the defendant spread the information more widely than the situation required.
The Anti-SLAPP Risk
This is the piece of California defamation law that trips up the most plaintiffs. Code of Civil Procedure section 425.16, known as the anti-SLAPP statute, lets defendants ask the court to dismiss claims that target constitutionally protected speech on public issues.6California Legislative Information. California Code of Civil Procedure CCP 425.16 “SLAPP” stands for Strategic Lawsuit Against Public Participation, and the statute exists to stop people from using meritless defamation suits to silence critics.
The court applies a two-step test. First, the defendant has to show the claim arises from an act in furtherance of the right to free speech or petition on a public issue, which includes statements made in official proceedings, statements about matters under government review, and statements in public forums about matters of public interest. If the defendant clears that hurdle, the plaintiff has to demonstrate a probability of winning the case.
Here is what makes this so consequential: if the defendant wins, the plaintiff must pay the defendant’s attorney’s fees and costs. That fee-shifting is mandatory. A defamation claim that gets struck down under the anti-SLAPP statute can leave the plaintiff with tens of thousands of dollars in the defendant’s legal bills on top of their own. If your case is weak, filing it in California is not just risky. It’s expensive.
The One-Year Deadline
You have one year from the date of publication to file a defamation lawsuit. Code of Civil Procedure section 340(c) sets this deadline for both libel and slander.7California Legislative Information. California Code of Civil Procedure CCP 340 Miss it and your claim is almost certainly barred.
For online statements, the clock starts when the content is first posted, not each time a new person reads it. California follows the single publication rule, which treats the initial upload as the triggering event. Editing or substantially changing the content can restart the clock; simply leaving the post online does not. If you find a defamatory review or blog post that has been live for 14 months, you are likely out of time even if you just discovered it.
Special Rule for Newspapers and Broadcasters
Civil Code section 48a adds a separate procedural hurdle for claims against newspapers and radio broadcasters. Within 20 days of learning about the statement, you have to send a written demand identifying the specific statements and asking for a correction.8California Legislative Information. California Code Civil Code 48a Skip that step and your damages are capped at special damages only, meaning you can recover provable financial losses but not compensation for emotional harm or reputational injury.
If you send a timely demand and the outlet publishes a correction of roughly equal prominence within three weeks, your damages are again limited to special damages. If the outlet ignores you or publishes an inadequate correction, you can pursue general damages, special damages, and, if you can prove actual malice as the statute defines it, punitive damages.9California Legislative Information. California Code CIV 48a – Damages for Libel in News Publication or Slander by Radio Broadcast The 20-day clock runs from when you learned of the statement, not from the publication date.
What You Can Recover
California allows three types of damages in a defamation case.
General damages compensate intangible harm: injury to reputation, shame, humiliation, and emotional distress. In libel-on-its-face and slander per se cases, these damages are presumed. Otherwise, you have to prove them.
Special damages are specific, documented financial losses, such as lost wages, lost business, or money spent repairing your reputation. Concrete evidence is required, not estimates.
Punitive damages are available under Civil Code section 3294 when the defendant acted with oppression, fraud, or malice, proved by clear and convincing evidence.10California Legislative Information. California Code CIV 3294 – Exemplary Damages They punish egregious conduct rather than compensate the victim, and the amount is left to the court’s discretion.
Libel plaintiffs suing over statements defamatory on their face have the easiest path because general damages are presumed. Slander plaintiffs outside the per se categories carry the heaviest burden because they have to trace a specific dollar loss to the false statement.
Online Posts and Platform Immunity
California’s defamation rules apply to social media, review sites, forums, and blogs the same way they apply to print and broadcast. You can sue the person who wrote the false statement. What you generally cannot do is sue the platform that hosted it.
Section 230 of the federal Communications Decency Act says no provider of an interactive computer service can be treated as the publisher of content created by someone else.11Office of the Law Revision Counsel. 47 USC 230 In practice, Yelp, Facebook, X, Google, and similar platforms are generally immune from defamation liability for content their users post. Your claim has to be directed at whoever actually wrote the statement.
That creates a practical problem when the poster is anonymous. Some plaintiffs sue “Doe” defendants and try to subpoena the platform during discovery to unmask the poster. Courts scrutinize those subpoenas because they weigh the plaintiff’s interest in pursuing a legitimate claim against the poster’s First Amendment right to anonymous speech. Most courts require you to show a viable defamation claim before they will order a platform to reveal a user’s identity.