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Know Your State

Illinois

Illinois is really two rental environments: a thin statewide baseline where rent control is banned outright, and Chicago plus much of Cook County, where local ordinances give renters some of the most detailed protections in the Midwest.

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Overall rental environment
Mixed
IL

What this means

  • Statewide law is mostly procedural: a 5-day notice for unpaid rent, 30 days' notice to end a month-to-month tenancy, deposit interest for buildings with 25 or more units, and itemized deposit accounting for buildings with five or more units.
  • Rent control is prohibited statewide — the Rent Control Preemption Act (50 ILCS 825) bars local governments, including home-rule cities like Chicago, from capping rent.
  • There's no statewide cap on deposit amounts, no statewide late-fee cap, and no statewide notice requirement before landlord entry.
  • You do have a statewide repair remedy: the Residential Tenants' Right to Repair Act (765 ILCS 742) allows repair-and-deduct for smaller repairs after written notice and a waiting period, and the Retaliatory Eviction Act (765 ILCS 720) protects complaints to authorities about code violations.
  • Illinois added source-of-income protection to the Human Rights Act effective January 1, 2023 — landlords generally can't refuse you for using a housing voucher.
  • A new statewide rental fee transparency law (P.A. 104-0479) takes effect January 1, 2027, requiring non-optional fees to be disclosed up front. It is not in force yet.

Things to pay extra attention to

Whether Chicago's RLTO or Cook County's RTLO covers you

Chicago's Residential Landlord and Tenant Ordinance requires deposit interest and receipts, a 45-day deposit return with itemization, at least two days' notice before entry, and caps late fees at $10 on the first $500 of rent plus 5% above that. Suburban Cook County's RTLO extends similar protections countywide, except in municipalities with their own qualifying ordinance. Which set applies to you changes the answer to almost every question.

The RLTO summary should be attached to your lease

In Chicago, the landlord must attach the city's RLTO summary to every written lease. If it's missing, that's worth asking about — and worth keeping a copy of once you get it.

Chicago's Fair Notice rules scale with tenancy length

Chicago requires longer advance notice for rent increases and non-renewals the longer you've lived there — 30 days under six months, 60 days from six months to three years, and 120 days after three years. Statewide, the default is just 30 days for a month-to-month.

Just cause is local, and rare

Illinois has no statewide just-cause eviction requirement. Evanston adopted just-cause provisions in its own ordinance; most of the state has nothing comparable. Don't assume a renewal is protected.

Cook County's Just Housing Amendment on criminal history

In Cook County, a landlord generally must run an individualized assessment before denying you based on covered criminal history — it can't be a blanket automatic rejection.

Trusted resources

Government and nonprofit starting points for Illinois renters. When your situation is specific, contact a local legal-aid organization directly.

Related Playbook topics

Track My Deposit ReturnRenewal Reality CheckThe Paper Trail Checklist
Noon Knows Tip

In Illinois, the first thing to pin down is your address — literally. Chicago, suburban Cook County, an opt-out suburb, and downstate are four different rulebooks. Confirm which ordinance covers your unit before you argue about a deposit, a late fee, or an entry notice, because that answer determines whether you're holding a strong hand or a thin one.

Educational overview — not legal advice. Rental law changes; verify anything consequential against the current statute or with a local legal-aid organization.
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