A brutal online review can cost a California business real revenue, and the instinct to sue is understandable. But defamation law protects pure opinions — even harsh, unfair ones — and a lawsuit against a reviewer carries a unique hazard: California's anti-SLAPP statute, which can end the case early and stick the business with the reviewer's attorney fees. This article explains where criticism ends and defamation begins, and what to weigh before filing.
Defamation requires a false statement of fact
California defines defamation — libel in written form, slander when spoken — in Civil Code sections 44 through 46. The core elements are a false statement of fact about the plaintiff, published to a third party, made without applicable privilege, with the required degree of fault, that causes reputational harm. The pivotal word is fact. Pure statements of opinion that do not imply provably false facts are constitutionally protected, no matter how damaging.
- Likely opinion: "Worst restaurant in town," "the owner is rude," "overpriced and not worth it," one-star ratings with no factual claims.
- Potentially factual: "They charged my card twice and refused to refund it," "there were roaches in the kitchen," "the contractor never pulled permits," "they billed me for work they never performed."
Courts look at the totality — context, tone, and whether a reasonable reader would understand the statement as a factual claim. Hyperbole on a rant-heavy platform reads differently than a specific, verifiable accusation. Some statements, including false claims that injure a business in its trade or accuse someone of a crime, are defamatory per se, meaning harm to reputation is presumed. California also recognizes trade libel — false disparagement of a business's products — but it requires proof of specific economic loss, which makes it harder to establish, not easier.
Truth, privilege, and fault
Truth is a complete defense: a substantially true review, however unflattering, is not actionable. Various privileges may also protect statements made in litigation or official proceedings and in certain other settings. And the plaintiff's status matters — a business or individual deemed a public figure on the topic must prove actual malice (knowledge of falsity or reckless disregard for the truth), while private plaintiffs generally must show at least negligence. Before any lawsuit, an honest internal question is required: is the specific factual assertion in the review actually false, and can you prove it? Discovery will explore what really happened with that customer and may put those facts into public filings.
The anti-SLAPP statute changes the math
Code of Civil Procedure section 425.16 — the anti-SLAPP statute — lets a defendant sued over speech on a public issue, a category that can include consumer reviews, file a special motion to strike at the outset of the case. Discovery is stayed, and the plaintiff must immediately show a probability of prevailing with admissible evidence. If the plaintiff cannot, the case is dismissed and the plaintiff must pay the defendant's attorney fees. A defamation suit filed in anger, without evidence of falsity lined up in advance, can therefore end within months with the business writing a check to the reviewer's lawyer. This is the single most important strategic fact in review litigation, and it is why careful civil litigation counsel stress-test a defamation claim against an anti-SLAPP motion before filing it.
The one-year deadline — and the platform problem
Defamation claims must be filed within one year (Code of Civil Procedure section 340(c)), and under the single-publication rule the clock generally runs from when the statement was first posted, not from each day it remains online. Note two practical complications. First, review platforms themselves are generally immune from defamation liability for user content under 47 U.S.C. § 230, so the claim runs against the author, not Yelp or Google — and identifying an anonymous reviewer may require subpoenas early in the case. Second, platforms remove content under their own policies; even a court judgment establishing falsity does not necessarily compel a platform to take it down.
Alternatives that often work better
Litigation is sometimes necessary — a competitor posting fabricated reviews, a false accusation of criminal conduct, a coordinated smear. But for ordinary bad reviews, other tools usually deliver more value at less risk: a professional public response, a direct resolution with the customer followed by a voluntary update, platform flagging for reviews that violate content policies (conflicts of interest, extortionate demands, off-topic rants), and burying isolated negatives under a steady flow of genuine reviews. A carefully worded attorney letter can be appropriate where a review contains provably false facts, but heavy-handed threats have a way of becoming the story themselves.
Talk to a California business attorney
If a false review or online accusation is damaging your business, an early assessment of falsity, the anti-SLAPP risk, and the one-year deadline will tell you whether to negotiate, flag, or file. Schedule a free consultation or call (949) 418-2113.
This article is attorney advertising and provides general information only. It is not legal advice and does not create an attorney–client relationship. Facts matter; consult a lawyer about your specific situation.
