Wisconsin § 133.05 - Secret rebates; unfair trade practices.
Full text of Wisconsin Wisconsin Statutes § 133.05 — Secret rebates; unfair trade practices., with citation guidance and answers to common questions.
§ 133.05. Secret rebates; unfair trade practices.
133.05(1) (1) The secret payment or allowance of rebates, refunds, commissions or unearned discounts, whether in the form of money or otherwise, or the secret extension to certain purchasers of special services or privileges not extended to all purchasers purchasing upon like terms and conditions, such payment, allowance or extension injuring or tending to injure a competitor or destroying or tending to destroy competition, is an unfair trade practice and is prohibited. 133.05(2) (2) No person may induce, solicit or receive anything of value which is prohibited under sub. (1) . 133.05(3) (3) Any person knowingly violating this section may be fined not more than $25,000 or imprisoned in the county jail for not more than one year or both. 133.05(4) (4) As an alternative to the criminal penalty for violation of this section, the department of justice or district attorney may bring an action for a civil forfeiture. In an action for a civil forfeiture under this subsection a person who violates this section may be required to forfeit not more than $25,000. 133.05(5) (5) This section does not apply to the insurance business. 133.05 History History: 1979 c. 209 ; 1983 a. 215 . 133.05 Annotation Competitive injury is a required element under this section, but intent to injure is not. OB-GYN Assoc. of Neenah v. Landig, 129 Wis. 2d 362 , 384 N.W.2d 719 (Ct. App. 1986). 133.05 Annotation A violation of sub. (1) occurs when a discount, both secret and unearned, tends to injure or injures competition. “Earned” discount is defined. Jauquet Lumber v. Kolbe & Kolbe Millwork, 164 Wis. 2d 689 , 476 N.W.2d 305 (Ct. App. 1991). 133.05 Annotation This section is not unconstitutionally vague. Knowledge is an element of a violation of sub. (2). Carlson & Erickson v. Lampert Yards, 183 Wis. 2d 220 , 515 N.W.2d 305 (Ct. App. 1994). 133.05 Annotation Civil violations of this section must meet the ordinary civil burden of proof. Carlson & Erickson v. Lampert Yards, 190 Wis. 2d 650 , 529 N.W.2d 905 (1995). 133.05 Annotation “Rebates,” “refunds,” and “discounts” in sub. (1) mean essentially the same thing, a reduction or credit that is tied to the price of the good or service being purchased by the recipient of the reduction or credit. To be a “discount” a payment or allowance must be a reduction from the price that would be paid if the “discount” were not given. Tele-Port, Inc. v. Ameritech Mobile Communications, Inc. 2001 WI App 261 , 248 Wis. 2d 846 , 637 N.W.2d 782 , 00-2627 . 133.05 Annotation Civil violations of this section must be proved by clear, satisfactory and convincing evidence.
Source: official Wisconsin text · Last verified 2026-08-27
Frequently Asked Questions About Wisconsin § 133.05
What does Wisconsin Statutes § 133.05 cover?
Section 133.05 ("Secret rebates; unfair trade practices.") is part of the Wisconsin Statutes, the codified statutory law of Wisconsin. It sets out the legal rule or procedure described in the text above. Statutes are amended regularly, so always verify against the official source.
How do I cite Wisconsin § 133.05?
A common citation format is "Wisconsin Statutes § 133.05" (Wisconsin). Legal writing may require the code abbreviation, section number, and year or edition. Match the style required by your court, professor, or publisher.
Is this the official text of Wisconsin law?
No. This page is for research and education and may not include the most recent amendments. For official current law, check the Wisconsin official source linked on this page or consult a licensed Wisconsin attorney.
How does Wisconsin § 133.05 apply to my situation?
Statutes are interpreted in context, and application depends on your specific facts. Only a licensed attorney in Wisconsin can advise on how this section applies to you. Contact your state or local bar association for a referral.
Sources & Verification
Not legal advice. Verify against the official source and consult a licensed attorney in Wisconsin.