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Illinois Rent Increase & Late Fee Laws

Illinois rules on rent increases & late fees for renters and landlords, with the statute or official page behind each answer. Last verified: 2026-10-22.

Short answer: No statewide rent control, and home rule units are preempted from regulating the amount of rent charged for private residential or commercial property. 50 ILCS 825/10 (Rent Control Preemption Act)

The rules in Illinois

Rent control / increase limitsNo statewide rent control, and home rule units are preempted from regulating the amount of rent charged for private residential or commercial property.
AG fact sheet also states Illinois has no rent control law.
Late feesNo statutory cap statewide. AG: landlord may charge a reasonable fee for late rent. Landlords with 100+ units and an on-site office must accept rent there without penalty.
A late-fee cap bill (HB 4998, 2026) did not pass; the enacted fee law (P.A. 104-479, 765 ILCS 705/35, eff. 1-1-27) requires all non-optional fees on the first page of the lease and bans listed 'junk fees' but sets no late-fee cap. Chicago RLTO caps late fees locally.

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Illinois vs. neighboring states

Rent Increases & Late Fees: Illinois vs. neighboring states
StateRent control / increase limitsLate fees
IllinoisNo statewide rent control, and home rule units are preempted from regulating the amount of rent charged for private residential or commercial property.
50 ILCS 825/10 (Rent Control Preemption Act)
No statutory cap statewide. AG: landlord may charge a reasonable fee for late rent. Landlords with 100+ units and an on-site office must accept rent there without penalty.
Illinois AG fact sheet; 735 ILCS 5/9-218
IndianaPreempted: local units may not regulate rental rates for privately owned property, nor screening, security deposits, lease applications, lease terms, disclosures, parties' rights, or landlord fees, unless authorized by the General Assembly. Does not apply to property receiving government funds for reduced rents.
IC 32-31-1-20
No statutory cap or grace period.
IC 32-31 (no late-fee provision); IC 32-31-1-20(c)(7)
IowaPreempted: cities and counties may not adopt or enforce any limit on the amount of rent for private residential or commercial property (except property in which the local government has an interest). No statewide cap.
Iowa Code § 364.3(9) (cities); § 331.304(10) (counties)
Rent of $700/month or less: late fee may not exceed $12 per day or $60 per month. Rent over $700/month: not more than $20 per day or $100 per month.
Iowa Code § 562A.9(4)
KentuckyPreempted: only the General Assembly may enact rent control on private property; local governments may not. No statewide cap.
KRS 65.875
No statutory cap or grace period.
KRS Chapter 383 (no late-fee provision)
MissouriStatewide preemption. Counties and cities, including charter governments, may not enact, maintain, or enforce ordinances regulating the rent charged for privately owned residential or commercial rental property. Exceptions: property the locality owns, voluntary agreements for subsidized properties, and CDBG-assisted properties.
RSMo 441.043
No statute — no cap or grace period; late fees are governed by the lease.
RSMo Chs. 441, 534 and 535 (no section on late fees)
WisconsinPreempted. No city, village, town, or county may regulate the amount of rent or fees charged for a residential rental unit. Inclusionary zoning is also prohibited.
Wis. Stat. § 66.1015
No statutory cap. A late fee may be charged only if the rental agreement specifically provides for it. Prepaid rent must be applied before a late fee is charged, and no fee may be charged for not paying a late fee.
Wis. Admin. Code ATCP 134.09(8)

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Illinois Rent Increase & Late Fee Laws FAQ

Is there rent control or a limit on rent increases in Illinois?
No statewide rent control, and home rule units are preempted from regulating the amount of rent charged for private residential or commercial property. (50 ILCS 825/10 (Rent Control Preemption Act))
Is there a limit on late fees in Illinois?
No statutory cap statewide. AG: landlord may charge a reasonable fee for late rent. Landlords with 100+ units and an on-site office must accept rent there without penalty. (Illinois AG fact sheet; 735 ILCS 5/9-218)

General legal information, not legal advice. Laws change and local rules can differ; check the linked official source or talk to a lawyer about your situation.