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Deceptive Trade Practices Act: 12 Practices and Checklist

Read the Illinois deceptive trade practices list of 12 items, the injunction remedy, dated facts and a checklist for foreign-owned and cross-border sellers.

Last reviewed October 27, 2026 · 3 min read · General information, not legal advice

General information only, not legal advice. CPA Tax Payroll and Accounting Corp is a CPA firm, not a law firm. Laws change: confirm with the official source or a licensed attorney before you act. Read the full notice.

The Illinois deceptive trade practices list in 815 ILCS 510 has 12 items. This page groups them in plain words, then gives the remedy, dated facts and a claim-checking checklist for owners with ties to Canada or India. The overview page explains who the Act covers.

The Illinois deceptive trade practices list: what the law requires

ThemeSection 2(a) itemsIn plain words
Confusion about source1 to 3Passing off goods or services as another's; likely confusion about source, sponsorship, approval, certification or affiliation.
Origin and characteristics4 to 7Deceptive geographic origin; claiming an approval, quantity or status the seller lacks; calling used or reconditioned goods original or new; claiming a standard or quality the goods lack.
False statements about a rival8Disparaging another's goods, services or business by false or misleading statements of fact.
Advertising conduct9 to 11Advertising goods or services the seller intends not to sell as offered; advertising without meaning to meet expectable demand and without disclosing a quantity limit; false statements about price cuts.
Catch-all12Other conduct that similarly creates a likelihood of confusion or misunderstanding.

Key numbers and dates

ItemDetailYear
RemedyA court may grant an injunction, on reasonable terms; money loss, lost profits and intent to deceive need not be proved2026
Costs and attorney feesThe court can charge them to a defendant only on a finding of willful conduct2026
Civil penalty or limitation periodNone stated in this Act2026
ApprovedAugust 5, 19651965
Latest change to Section 2Effective June 28, 2001, under P.A. 92-162001
Listed practices by theme count of the 12 items, 2026 text
Source confusion3
Origin and traits of goods4
Disparaging a rival1
Advertising practices3
Catch-all1

Source: 815 ILCS 510/2

Recent and pending changes

  • The text read in October 2026 has source notes that show no amendment after 2001.
  • Changes to the Consumer Fraud Act matter too, since it makes these practices unlawful.

The named checklist: the Phillips Park Claim-Proof Binder

These steps are practice suggestions, not duties in the Act.

  1. Collect every claim you publish that compares, certifies, discounts or describes.
  2. File proof for each: price history for "was/now", approval letters, condition notes, origin records, stock counts.
  3. Search for confusingly similar names, logos and domains before you print or register.
  4. Label refurbished or used goods plainly, and state any quantity limit in the ad.
  5. Date the binder and review it each sale season; see our record retention guide.

Common mistakes

  • A "was" price that was never a real earlier price.
  • Calling refurbished or used goods new.
  • Claiming a certification or affiliation that the business lacks.
  • An ad for an item the seller has no stock of, run without any quantity-limit notice.

When to bring in an attorney

  • A competitor demands that you stop using a name, logo or claim.
  • You are choosing, registering or defending a trademark or trade name.
  • You face a lawsuit that seeks an injunction against you, or you want to seek one yourself.

How we can help

Our Aurora, Illinois area firm handles the U.S. tax, payroll and accounting side, including the records behind advertising claims, alongside your attorney, Canadian CPA or Indian CA, and gives no legal advice. See bookkeeping and accounting and business formation and registrations.

Frequently asked questions

Can a customer recover money under this Act?

The Act's own remedy is an injunction. Look to the Consumer Fraud Act or other law for money remedies.

Must the plaintiff be a competitor?

No. The plaintiff need not prove competition or actual confusion (Section 2(b)).

Is there a deadline to sue?

This Act states no limitation period. Ask an attorney which limit applies.

Does the Attorney General enforce this Act?

The text names no agency. The Attorney General acts under the Consumer Fraud Act, which makes these practices unlawful.

Official sources

This page summarizes public guidance in plain language. If anything here differs from the official source, the official source controls.