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Free Illinois Rent
Increase Notice Template

Last reviewed August 2026

Written by LawLease Editorial

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Illinois Rent Increase Notice

An Illinois landlord has to give tenants written notice before rent goes up. How much notice — and whether there’s a cap — is set by statute. Here’s what Illinois’s says.

Illinois rules at a glance

Illinois rules for a Rent Increase Notice
Notice before an increase30 days. There is no Illinois statute setting a rent-increase notice period. For a month-to-month tenancy the 30-day termination notice is used by analogy.735 ILCS 5/9-207
Rent capThe Rent Control Preemption Act bars every Illinois local government from enacting or enforcing rent control.50 ILCS 825/1

Rent, late fees & increases

Outside Chicago, Cook County and Evanston, Illinois has no law capping residential late fees and no mandated grace period. A late fee is enforceable because it is written into the lease and reasonable — not because it falls under a statutory ceiling. The widely repeated “5% is the legal maximum” figure is industry practice, not Illinois law.

  • Rent increases — There is no Illinois statute setting a rent-increase notice period. For a month-to-month tenancy an increase is a unilateral change of terms, so the 30-day termination notice under 735 ILCS 5/9-207 is used by analogy.
  • Rent control is preempted — The Rent Control Preemption Act bars every Illinois local government from enacting or enforcing rent control (50 ILCS 825/1). The Chicago, Cook County and Evanston ordinances regulate fees and process — not the amount of rent.
  • Coming July 2026 — HB 3564 requires every non-optional fee to appear on the first page of the lease or the tenant is not liable for it, caps application fees at $50, and bans eleven categories of “junk fees.”

Illinois Rent Increase Notice FAQs

Does Illinois have rent control?

No. The Rent Control Preemption Act bars every Illinois city and county from enacting or enforcing rent control (50 ILCS 825/1). The Chicago, Cook County and Evanston ordinances regulate fees, deposits and process — not the rent itself.

More Illinois landlord documents

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