In one paragraph
Illinois's HB 1427 (104th General Assembly) would create the Prohibition of Algorithmics in Rent Act. In setting residential rent, including renewal changes, a landlord could not use, or cause another to use, an algorithmic device that uses, incorporates or was trained with nonpublic competitor data. A violation would be an unlawful practice under the Consumer Fraud Act. Re-referred to Rules March 27, 2026.
Plain-English summary, written with AI assistance. The official text controls.
What it means for business
Not law. If enacted, landlords could not use algorithmic rent-setting tools built on nonpublic competitor data, and violations would be Consumer Fraud Act violations.
Key provisions
- Landlords could not employ, use or rely on, or cause another to use, an algorithmic device that uses, incorporates or was trained with nonpublic competitor data to set rent or rent changes
- 'Algorithmic device' means a device using algorithms to calculate data, including local or statewide rent amounts, to advise a landlord on rent
- Excludes periodic trade association reports (no more than monthly) of aggregated, anonymous renter data and products used for affordable housing program rent or income limits
- A violation would be an unlawful practice under the Consumer Fraud and Deceptive Business Practices Act
- Assigned to House Housing Committee March 12, 2026; re-referred to Rules March 27, 2026
Latest legislative action
Mar 27, 2026. Rule 19(a) / Re-referred to Rules Committee
Sponsors (showing 5 of 16)
| Name | Role |
|---|---|
| Angelo Saviano | Primary |
| Bob Biggins | Primary |
| Emanuel Chris Welch | Primary |
| Joe C. Sosnowski R | Primary |
| John E. Bradley | Primary |
Topics and industries
Related topics
Affected industries
This page is general information, not legal advice. Summaries are AI-assisted and may contain errors; read the statute for the controlling text and talk to a lawyer about your situation. Full disclaimer · Report an error