Wisconsin Statute § 100.18: Understanding Deceptive Practices

In Wisconsin, the principle of fair dealing in commerce is strongly protected by law. One of the most significant statutes in this regard is Wisconsin Statute § 100.18, Wisconsin’s Deceptive Trade Practices Act. This law aims to prevent businesses and individuals from making false or misleading statements to the public to induce the purchase of goods, services, or real estate. While its goal—truth in the marketplace—seems straightforward, bringing a successful claim under § 100.18 involves navigating specific legal requirements and interpretations that can be complex.   

What Does Wis. Stat. § 100.18 Prohibit?

Wis. Stat. § 100.18(1) prohibits making assertions, representations, or statements of fact to the public, in connection with the sale or promotion of products, services, or property, that are “untrue, deceptive or misleading.” The statute is intentionally broad, covering a wide range of commercial activities, from formal advertising campaigns and website claims to statements made on packaging or even verbal assertions by salespeople in certain contexts.   

The purpose is clear: to protect consumers and ethical businesses from being harmed by falsehoods designed to secure a transaction. If someone relies on a deceptive statement and suffers a financial loss as a result, § 100.18 provides a potential path to recover those damages, and sometimes even attorney’s fees.   

Key Elements of a § 100.18 Claim: More Than Just a False Statement

While the statute’s language seems simple, Wisconsin courts have established specific elements a plaintiff (the person bringing the lawsuit) must prove to win a § 100.18 claim. Generally, these include:

1. A Representation Made to “The Public”: The untrue, deceptive, or misleading statement must have been made to “the public.” This doesn’t always mean a mass media advertisement. Courts have interpreted “the public” broadly, sometimes including statements made to even one person, depending on the circumstances. However, purely private negotiations might fall outside the scope. Determining whether a statement qualifies as being made “to the public” requires careful factual analysis and understanding of cases like Bonn v. Haubrich, 119 Wis. 2d 308, 349 N.W.2d 72 (1984), which explored the boundaries of this term.

2. The Representation Was Untrue, Deceptive, or Misleading: This is the heart of the claim. The plaintiff must show the statement was factually false or created a misleading impression. Importantly, unlike common law fraud, a plaintiff generally does not need to prove the defendant intended to deceive. The focus is on the nature of the statement itself and its likely effect on the recipient. The legal standard applied by Courts is whether the representation was material – meaning it’s likely to influence a reasonable person’s purchasing decision – and that the representation would have misled a reasonable person. Tietsworth v. Harley-Davidson, Inc., Wis. 2d 146, 677 N.W.2d 233 (2004).

3. The Representation Caused Pecuniary Loss: The plaintiff must demonstrate that they suffered actual financial damages because they relied on the untrue, deceptive, or misleading statement. There needs to be a causal link. Simply being exposed to a false advertisement isn’t enough; you must show it induced you to act (e.g., make a purchase, enter a contract) and that this action resulted in a monetary loss. The Wisconsin Supreme Court emphasized this causation requirement in cases like K&S Tool & Die Corp. v. Perfection Machinery Sales, Inc., 301 Wis. 2d 109, 732 N.W.2d 792 (2007), stating the Plaintiff must have reasonably relied on the representation; stated another way, the representation made must be a “material inducement” to the plaintiff’s decision leading to the loss.   

Why § 100.18 Litigation Can Be Complex and Confusing

Despite the clear elements, applying them to real-world situations introduces significant complexity:

• Defining “The Public”: As mentioned, the line between a public representation and a private negotiation can be blurry and fact-dependent.
• Puffery vs. Actionable Statement: Sales talk often involves exaggeration or subjective claims (“the best coffee in town!”). Distinguishing legally acceptable “puffery” from a specific, actionable misrepresentation of fact requires careful legal analysis.
• Materiality and Reliance: Was the specific statement actually important to the plaintiff’s decision? Would a reasonable person have relied on it under the circumstances? These questions often involve subjective judgment calls evaluated against legal standards.
• Proving Damages: Clearly demonstrating and quantifying the financial loss directly caused by the misleading statement can be challenging and may require expert analysis or detailed financial evidence.
• Statute of Limitations: Claims under § 100.18 must be brought within three years after the claimant discovered the deceptive act and the resulting pecuniary loss. Missing this deadline can bar the filing of a claim.

Do You Have a Potential Claim? Attorney Seth Hill Can Help Evaluate Your Situation

If you believe you or your business has suffered a financial loss in Wisconsin due to an untrue, deceptive, or misleading statement made by another party in a commercial context, you might have recourse under Wis. Stat. § 100.18. However, given the complexities involved, navigating this area of law alone can be difficult and risky. Attorney Seth Hill and the business litigation attorneys at Halling & Cayo, S.C. have decades of experience representing clients in complex business litigation matters, including claims involving deceptive trade practices under § 100.18. He understands the specific elements required to build a case, the potential defenses that may arise, and the nuances established by Wisconsin courts. Don’t let confusion about the law prevent you from exploring your rights. If you suspect you’ve been harmed by deceptive commercial practices in Wisconsin, take the first step toward clarity.