Illinois Landlord-Tenant Laws
Local rent regulation in Illinois
Illinois's Rent Control Preemption Act forbids every unit of local government, including home-rule cities such as Chicago, from controlling the amount of rent charged for private residential or commercial property; the only exception is housing the local government itself has an interest in.
Cited to Rent Control Preemption Act, 50 ILCS 825 · Verified August 12, 2026 · Full Illinois rent-increase rules →
Illinois landlord-tenant laws by topic
Illinois security deposits
Illinois sets no cap on security deposits, and in buildings of five or more units the landlord must send an itemized damage statement with receipts within 30 days of move-out and return the balance — or, if no valid statement is sent, the full deposit — within 45 days.
Illinois rent increase notice
Illinois has no statute setting a notice period for rent increases; the effective floor for a month-to-month tenancy is the termination rule in 735 ILCS 5/9-207 — 30 days' written notice — because a tenant who rejects the new rent is on notice the tenancy can end on that same timeline.
Illinois late fees
Illinois sets no statewide cap on residential late fees and mandates no grace period — the Landlord and Tenant Act is silent on them — so a late fee must appear in the lease to be collectable and, if challenged, is tested under general contract law as liquidated damages rather than a penalty.
Illinois entry notice
Illinois has no statewide statute requiring advance notice before a landlord enters an occupied rental unit — the lease governs entry, backstopped by the tenant's right to quiet enjoyment, and 24 hours' notice at reasonable times is the convention courts expect where the lease is silent.
Illinois eviction process
Illinois evictions start with a 5-day demand for rent — calendar days, with the deadline rolling forward if it lands on a weekend or holiday — and only full payment within those 5 days is guaranteed to save the tenancy; partial payments don't defeat a properly worded notice, and once the window closes the statute gives the tenant no right to force reinstatement by paying up.
Illinois application & screening fees
Illinois does not cap residential rental application or screening fees today, but it does bar any application screening fee when an applicant hands the landlord a qualifying reusable tenant screening report, and a $50 limit on application and background-check fees begins on January 1, 2027.
Illinois deposit interest
Illinois requires deposit interest only from lessors of residential property with 25 or more units, and only on a deposit held more than six months.
Illinois habitability & repairs
Illinois requires landlords to keep rented homes habitable, but the duty comes from the courts rather than from a statute: the Illinois Supreme Court created an implied warranty of habitability in 1972 and has since applied it to every residential lease in the state, whether or not the town has a housing code.
Illinois lease termination
An Illinois landlord ends a month-to-month tenancy with 30 days' written notice, a week-to-week tenancy with 7 days, and a year-to-year tenancy with 60 days timed to the end of the year, and no reason is required.
Illinois mobile home park laws
Illinois governs lot tenancies through the Mobile Home Landlord and Tenant Rights Act, 765 ILCS 745, which applies to any park containing five or more mobile homes and is unusual in two ways: the park owner must offer every tenant a written lease of at least 24 months, and every rent increase takes 90 days' written notice and cannot take effect any sooner.
Illinois Fair Market Rents (FY 2027) — HUD's benchmark rents for every Illinois metro area and county.
Changes since last full verification
The Verified date above (July 8, 2026) marks the last time every figure on this page was verified end-to-end against official state sources. The changes below were published since then, each verified against the official source it names (what these dates mean).
- Updated, September 5, 2026 — Chicago: § 5-12-130(j) as amended by SO2025-0019933 (in force April 15, 2026) is now stated on the Chicago record: where notice of termination, non-renewal or a rent increase is missing, insufficient or defective, the tenant may remain for up to 60 days (tenancies of three years or less) or 120 days (longer tenancies) from the date notice is actually given, and the landlord may not file an eviction action until that period has run.
- Correction, August 29, 2026 — Deposit-interest prose corrections from a primary-source re-read of every state's law: IA unsupported after-five-years inference removed (Iowa Code 562A.12 stops at the five-year landlord allocation) and the anti-commingling rule narrowed to the landlord's personal funds; FL commingling bar scoped to the two account options in 83.49(1)(a)-(b); IL local line names Chicago only and the Department announces the qualifying bank's rate; NJ 46:8-19's ten-unit tier stated as a mandatory vehicle rule (money-market fund or variable-rate account); MN unverified pre-2003 5.5% figure removed and 504B.178 subd. 7's bad-faith presumption with its two-week-after-suit cure window added; NM 47-8-18's rate reference records the 1986 federal ceiling expiry alongside the 1989 agency abolition; VA repeal pinned to July 1, 2014 (accrual duty) and January 1, 2015 (rate schedule) under 2014 Acts c. 651 enactment clause 4; MO 99.040 carve-out stated in the statute's own scope words; AZ mobile-home-park deposit cell gains A.R.S. 33-1431(B)'s five-percent-minimum annual interest duty (paid or compounded annually) with the 33-1431(D) doubling remedy.
- Updated, August 12, 2026 — Illinois' eviction page now records 735 ILCS 5/9-102(e) (P.A. 104-0029, in force since January 1, 2026): nothing in the eviction article may be construed to prohibit law enforcement from enforcing criminal trespass (720 ILCS 5/21-3) or removing persons or property from premises where that offense is being committed. The self-help discussion now distinguishes the landlord's eviction-action-only route from this police-authority carve-out.
How this record was verified: Web verification against ilga.gov (official Illinois General Assembly ILCS database) for the Security Deposit Return Act (765 ILCS 710), Security Deposit Interest Act (765 ILCS 715), Landlord and Tenant Act (765 ILCS 705), Rent Control Preemption Act (50 ILCS 825), and 735 ILCS 5/9-207, with statute text confirmed via current-year compiled-statute mirrors of the ilga.gov database and IDFPR official guidance on deposit interest rates. September 5, 2026 addendum: the decisive figures touched by the 2025-2026 enactments reviewed that day were re-read on the official host — 735 ILCS 5/9-106 and 5/9-121 and the Landlord Retaliation Act, 765 ILCS 721, on ilga.gov; the earlier reads stand as recorded.