False Advertising Claims in California

False and misleading advertising is the first example on our consumer fraud page, and California attacks it with three overlapping laws. The False Advertising Law bans untrue or misleading advertising statements. The Unfair Competition Law treats false advertising as unfair competition. The Consumers Legal Remedies Act lists specific advertising practices, such as fake price reductions and prices that leave out mandatory fees, and gives consumers a damages claim.

Which law applies changes what you can recover. This guide covers what counts as false advertising, what you have to show, and what each law allows.

How does a false advertising claim work, step by step?

Save the ad. Screenshots with dates, the web address, the mailer, the shelf tag or the label. The claim depends on what the ad actually said.
Pin down what was untrue or misleading. Compare each statement with what you received: the price, the features, the results, the origin, the approval or certification.
Connect the ad to your loss. A private case under the False Advertising Law or the Unfair Competition Law needs a person who has suffered injury in fact and lost money or property as a result (Business and Professions Code 17204 and 17535).
Send the 30-day notice if you will seek damages. A damages claim under the Consumers Legal Remedies Act needs a written notice by certified or registered mail at least 30 days before filing (Civil Code 1782).
Choose the claims and the court. Small claims for smaller losses, or a lawsuit that can combine several laws.
File in time. The deadlines differ by law, from three to four years.

What kinds of ads break the law?

Practice	What the law says	Source
An untrue or misleading statement	Unlawful when made to sell property or services and the business knew, or with reasonable care should have known, it was untrue or misleading, including online	Business and Professions Code 17500
Bait and switch	Advertising as part of a plan not to sell at the stated price or as advertised; advertising goods or services with intent not to sell them as advertised	Business and Professions Code 17500; Civil Code 1770(a)(9)
Claims that sound scientific or factual	False or misleading claims that purport to rest on factual, objective or clinical evidence, or compare effectiveness or safety with other products	Business and Professions Code 17508(a)
Fake sales	False or misleading statements about the reasons for, existence of, or amounts of price reductions	Civil Code 1770(a)(13)
Hidden mandatory fees	Advertising or offering a price that leaves out mandatory fees, other than government taxes and fees and actual shipping costs	Civil Code 1770(a)(29)
Features or benefits a product does not have	Representing characteristics, ingredients, uses, benefits or quantities that goods or services do not have	Civil Code 1770(a)(5)
Limited supply not disclosed	Advertising with intent not to meet reasonably expected demand, unless the ad discloses a limit	Civil Code 1770(a)(10)

Can a true statement still be false advertising?

Yes. The False Advertising Law covers statements that are "untrue or misleading" (Business and Professions Code 17500), and the Unfair Competition Law covers "unfair, deceptive, untrue or misleading advertising" (Business and Professions Code 17200). A decision the Judicial Council cites under CACI 4700 says that even a perfectly true statement, couched in a way that is likely to mislead or deceive, such as by failing to disclose other relevant information, is actionable under the Consumers Legal Remedies Act.

Ads are generally judged from the point of view of a reasonable consumer. Decisions the Judicial Council cites under CACI 4700 describe a "reasonable consumer" standard for mislabeling claims, as distinct from an unwary or a suspicious consumer, and say that unless an ad targets a particular disadvantaged or vulnerable group, it is judged by its effect on a reasonable consumer. When a pitch is aimed at older adults, the protections in our guide for seniors may also apply.

Do I have to prove I relied on the ad?

For a claim based on a misrepresentation, yes. The Judicial Council's instruction for the Consumers Legal Remedies Act, CACI 4700, says the consumer's harm resulted from the business's conduct if the consumer relied on the representation, and that the consumer need only prove the representation was a substantial factor in the decision, not the only or the main factor. If the representation was material, reliance may be inferred; a fact is material if a reasonable consumer would consider it important in deciding whether to buy or lease.

The False Advertising Law and the Unfair Competition Law let a private person sue only if they suffered injury in fact and lost money or property as a result of the violation (Business and Professions Code 17535 and 17204). Keeping proof that you saw the ad before you paid helps on both points.

What can I recover?

Law	What a consumer can get	Source
False Advertising Law	An order stopping the practice and an order restoring money or property acquired through it	Business and Professions Code 17535
Unfair Competition Law	An order stopping the practice and an order restoring money or property acquired through it	Business and Professions Code 17203
Consumers Legal Remedies Act	Actual damages, an order stopping the practice, restitution, punitive damages, other relief, and attorney's fees and costs to a prevailing plaintiff	Civil Code 1780(a) and (e)
Consumers Legal Remedies Act, senior or disabled consumer	Up to $5,000 more if the jury makes the required findings	Civil Code 1780(b)
Fraud (intentional misrepresentation)	Damages, if each element is proven, including reasonable reliance	CACI 1900
Public enforcement only	Civil penalties up to $2,500 per violation; a violation of section 17500 is also a misdemeanor	Business and Professions Code 17536 and 17500

The difference between restitution and damages matters. The False Advertising Law and the Unfair Competition Law speak of restoring money or property "acquired by means of" the unlawful practice (Business and Professions Code 17535 and 17203); they do not list damages or attorney's fees among a private person's remedies. The Consumers Legal Remedies Act does list damages and makes fees mandatory for a prevailing plaintiff (Civil Code 1780(e)), which is why a claim about a consumer purchase may also rely on that Act. The remedies of these laws add to one another (Business and Professions Code 17205; Civil Code 1752).

What changes the answer?

The purchase was for a business. The Consumers Legal Remedies Act covers goods and services for personal, family or household purposes (Civil Code 1761). The False Advertising Law's ban on untrue or misleading statements is not limited that way (Business and Professions Code 17500).

The fee was on a restaurant menu. The hidden-fee rule has an exception for mandatory fees on individual food or beverage items sold by restaurants, bars and grocery stores, but the fee must be clearly and conspicuously displayed with an explanation of its purpose (Civil Code 1770(a)(29)(D)). The exception does not apply to third-party food delivery platforms.

The ad ran in a newspaper or on the radio. A newspaper publisher or broadcaster is not liable for the advertiser's claims under section 17508 unless it made the claims itself (Business and Professions Code 17508(e)). The claim is against the advertiser.

Many people saw the same ad. A private person may pursue claims for others only if they meet the standing rules and the class action requirements of Code of Civil Procedure 382 (Business and Professions Code 17535). Class actions under the Consumers Legal Remedies Act follow Civil Code 1781.

The product also hurt someone. When a falsely advertised product causes an injury, the claim may become a product liability case; see whether you can sue the store that sold a defective product.

Timing. A Consumers Legal Remedies Act claim has three years from the practice (Civil Code 1783) and an Unfair Competition Law claim four years (Business and Professions Code 17208); the False Advertising Law does not set its own. See consumer fraud deadlines.

What could this look like? An example

For example, imagine a Windsor couple who see an online ad for a sectional sofa "50% off, was $3,200, now $1,600." They buy it. Later they find the store's own archived listings showing the sofa was never offered at $3,200 at any time in the prior year. A false or misleading statement about the existence or amount of a price reduction is a practice listed in Civil Code 1770(a)(13), and the ad may also be untrue or misleading under Business and Professions Code 17500.

The couple save the ad and the archived listings, and mail the store a 30-day notice by certified mail naming section 1770(a)(13). If the store does not offer an appropriate remedy, they could bring claims under the Consumers Legal Remedies Act for damages and fees, and under the False Advertising Law and Unfair Competition Law for restitution, and they could also send the ad to the District Attorney. This example is made up to show how the rules fit together; it says nothing about any real case.

What mistakes do people make with false advertising claims?

Not saving the ad before the business changes or removes it.
Relying only on the False Advertising Law and missing the damages and fees available under the Consumers Legal Remedies Act.
Skipping the 30-day notice before seeking damages under the Act.
Assuming a technically true statement cannot be misleading.
Waiting past three years from the purchase because a four-year deadline seemed to apply.

What should I do this week?

Capture the ad, label or listing with screenshots that show the date and address.
Gather your receipt, order confirmation and any messages with the business.
Write down when you saw the ad and how it affected your decision to buy.
Draft and mail the 30-day notice described in our demand letter guide.
Decide whether a complaint to the District Attorney also makes sense; our guide on reporting to the District Attorney or filing your own claim compares the two.
Bring everything to a consultation; see what to bring to a first meeting.

Frequently asked questions

How is it decided whether an ad is misleading?

The question is whether the ad is likely to mislead a reasonable consumer and whether it was material to the purchase. A decision the Judicial Council cites under CACI 4700 says a mislabeling claim that runs counter to ordinary common sense or the obvious nature of the product can be dismissed early. Claims that purport to rest on tests or data are covered specifically, and public officials can demand the evidence behind them (Business and Professions Code 17508).

Can I sue if I never bought the product?

A private case under the False Advertising Law or the Unfair Competition Law requires lost money or property (Business and Professions Code 17535 and 17204). Without a purchase or other loss, a report to the District Attorney may be the main option.

Can I recover my attorney's fees?

Under the Consumers Legal Remedies Act, the court must award attorney's fees and costs to a prevailing plaintiff (Civil Code 1780(e)). The False Advertising Law's private remedy section does not provide for them.

Can I bring a false advertising claim in small claims court?

For money, yes, within the small claims limits. Our guide on small claims or a lawsuit explains the limits and trade-offs.

What if the ad was for a service, not a product?

The False Advertising Law covers services, professional or otherwise (Business and Professions Code 17500), and the Consumers Legal Remedies Act covers services bought for personal, family or household use (Civil Code 1761(b)).

Who enforces false advertising in Sonoma County?

The District Attorney's Environmental and Consumer Law Division handles consumer complaints, and our Sonoma County page lists its address and phone.

If an ad misled you into a purchase, contact Young Law Group today at (707) 343-0556 or through our contact page for a free consultation.

What counts as false advertising in California, and what can I recover?