Illinois Landlord-Tenant Laws: What Renters Need to Know

1. Overview: Illinois Landlord-Tenant Law

Illinois doesn’t have a single, unified landlord-tenant code the way some states do. Instead, your rights as a renter come from a patchwork of state statutes, court decisions, and — crucially — local ordinances that can differ dramatically from one city to the next.

At the state level, the key laws are spread across several acts: the Landlord and Tenant Act (765 ILCS 705), the Security Deposit Return Act (765 ILCS 710), the Security Deposit Interest Act (765 ILCS 715), the Landlord Retaliation Act (765 ILCS 721), and the Residential Tenants’ Right to Repair Act (765 ILCS 742). Eviction procedures are governed by the Code of Civil Procedure (735 ILCS 5, Article IX).

If you rent in Chicago, you also get an entirely separate layer of protections under the Chicago Residential Landlord and Tenant Ordinance (RLTO), which is one of the most tenant-friendly municipal laws in the country. We’ll flag Chicago-specific rules throughout this guide, but a full Chicago RLTO breakdown deserves its own article.

Illinois is generally considered a moderate state for tenant protections — stronger than most southern and midwestern states, but without the comprehensive statewide codes you’d find in states like California or New York. The implied warranty of habitability, established by the Illinois Supreme Court in Jack Spring, Inc. v. Little (1972), gives every Illinois renter a baseline right to livable conditions that landlords can’t waive by contract.

2. Security Deposit Rules

Security deposit disputes are the most common landlord-tenant fight in Illinois. The state has two separate statutes governing deposits, plus Chicago layers on its own rules.

Deposit Limits

Illinois has no statewide statutory limit on security deposit amounts. Your landlord can technically charge whatever they want. In practice, most charge one to two months’ rent.

Chicago exception: The RLTO caps security deposits at 1.5 times the monthly rent. If your Chicago rent is $2,000/month, your landlord can’t charge more than $3,000 as a deposit.

Return Deadline

Under the Security Deposit Return Act (765 ILCS 710), your landlord has two deadlines to meet:

• 30 days to send you an itemized statement of deductions, along with paid receipts or estimates for repairs
• 45 days to return any remaining deposit balance

Both clocks start when you move out and give up possession of the unit. If the landlord misses either deadline, they forfeit the right to keep any portion of the deposit.

Itemization Requirement

If your landlord makes any deductions, they must send you a written itemized statement within 30 days, listing each deduction along with either paid receipts or a good-faith estimate of the cost of repairs. A vague line like “cleaning and damages: $1,200” doesn’t cut it. You’re entitled to know exactly what was charged, why, and how much each item cost.

Penalty for Non-Compliance

This is where Illinois law has real teeth. If your landlord fails to comply with the Security Deposit Return Act — misses the deadlines, skips the itemization, or wrongfully withholds your deposit — you can recover twice the amount of the security deposit plus reasonable attorney’s fees. That penalty applies per violation, so missing both the itemization and return deadlines can compound.

Interest on Deposits

Under the Security Deposit Interest Act (765 ILCS 715), landlords who own residential property with 25 or more units must pay interest on security deposits held for six months or longer. The rate is set annually by the Illinois Department of Financial and Professional Regulation, based on the passbook savings rate at the state’s largest commercial bank. Interest must be paid within 30 days after the end of each 12-month rental period, either as cash or a credit applied to rent.

Landlords with fewer than 25 units? No interest requirement at the state level. Chicago’s RLTO has its own interest rules that apply regardless of building size.

What They Can (and Can’t) Deduct

Your landlord can deduct for unpaid rent and for damages beyond normal wear and tear. They cannot deduct for:

• Minor scuff marks on walls
• Carpet worn from regular foot traffic
• Small nail holes from hanging pictures
• Faded paint or sun-damaged window treatments
• Normal deterioration from ordinary use

Actual damage — holes in walls, broken fixtures, pet stains, burn marks — is fair game for deductions.

3. Eviction Procedures and Notice Requirements

Your landlord can’t just tell you to leave. Illinois requires a formal legal process, and cutting corners means the eviction can get thrown out in court. Eviction procedures are governed by 735 ILCS 5, Article IX (the “Forcible Entry and Detainer” provisions).

5-Day Notice for Unpaid Rent

Under 735 ILCS 5/9-209, if you don’t pay rent when it’s due, your landlord can serve you a written 5-day notice demanding payment. If you don’t pay within those five days, the landlord can consider the lease terminated and file an eviction lawsuit. No second warning required — one notice is enough.

10-Day Notice for Lease Violations

For other material lease violations — unauthorized pets, excessive noise, unauthorized occupants, or other breaches — your landlord must deliver a 10-day notice to vacate. Unlike the 5-day rent notice, the 10-day notice for lease violations generally does not include a right to cure. Once the 10 days expire, the landlord can file for eviction.

30-Day Notice to Terminate a Tenancy

Under 735 ILCS 5/9-207, to end a month-to-month tenancy, the landlord (or tenant) must give at least 30 days’ written notice before the start of the next rental period. For week-to-week tenancies, 7 days’ notice is required. For year-to-year tenancies, 60 days’ notice is needed before the lease renewal date.

Illegal Self-Help Evictions

If your landlord changes the locks, shuts off utilities, removes your belongings, or physically blocks you from entering your unit, that’s an illegal self-help eviction. Illinois law prohibits this, and you can take legal action to regain possession and recover damages. Only a sheriff executing a court order can physically remove a tenant from a rental unit.

The Court Process

After the notice period expires, your landlord must file a “forcible entry and detainer” complaint in circuit court. You’ll be served with a summons and have the right to appear, present defenses, and argue your case before a judge. If the court rules in the landlord’s favor, you’ll typically get a short period to move out before the sheriff enforces the order.

4. Landlord Entry and Notice Rules

Your landlord owns the building, but you’re paying for the right to live there privately. That gives you a right to “quiet enjoyment” — and limits when and how your landlord can enter.

State Law: Reasonable Notice

Unlike many states, Illinois does not have a statewide statute specifying an exact number of hours or days a landlord must give before entering your unit. Instead, landlords are expected to provide reasonable notice under the general right to quiet enjoyment. In practice, 24 hours is widely considered the baseline for what courts would treat as reasonable.

Your landlord can enter to make repairs, inspect the unit, show it to prospective tenants or buyers, or for other legitimate purposes. But they can’t show up unannounced, let themselves in while you’re at work, or use access to harass you.

Chicago: Two Days’ Notice

If you rent in Chicago, the RLTO requires landlords to give at least two days’ (48 hours’) notice before entering your unit. This is stricter than the general state standard and applies to all residential rental units within Chicago city limits.

Exceptions

• Emergencies — Your landlord can enter without notice in genuine emergencies, like burst pipes, fires, or gas leaks
• Tenant consent — If you explicitly agree to an entry, no advance notice is needed
• Abandonment — If it reasonably appears you’ve abandoned the unit

Your Lease May Say More

Since the state law is sparse on entry specifics, your lease is especially important here. Many Illinois leases include specific entry notice provisions — and those provisions are enforceable. Read the entry clause carefully before signing. If your lease says the landlord can enter anytime without notice, that’s a red flag worth pushing back on.

5. Habitability Standards and Repairs

Every residential lease in Illinois comes with an implied warranty of habitability. This isn’t something you need to negotiate into your lease — it’s automatic, and your landlord can’t waive it.

The Implied Warranty of Habitability

The Illinois Supreme Court established this doctrine in Jack Spring, Inc. v. Little, 50 Ill.2d 351 (1972). The court held that every residential landlord impliedly warrants that the premises are habitable and fit for living. To breach this warranty, the defect must be substantial — meaning it makes the premises unsafe, unsanitary, or unfit for occupancy.

Your landlord isn’t required to keep the place in pristine condition or fix cosmetic issues. But they must ensure basic livability.

What Your Landlord Must Provide

While Illinois doesn’t enumerate specific requirements in a single statute the way some states do, the implied warranty and local building codes generally require:

• Working plumbing, electrical, and heating systems
• Hot and cold running water
• Adequate weatherproofing (windows, doors, roof)
• Safe and sanitary common areas
• Compliance with applicable building and housing codes
• Working smoke and carbon monoxide detectors
• Reasonably pest-free conditions
• Structural integrity of the building

The Right to Repair Act

The Residential Tenants’ Right to Repair Act (765 ILCS 742) gives you a concrete remedy when your landlord ignores repair requests. If the landlord fails to make repairs required by law or by the lease after reasonable notice, you can hire a licensed tradesperson to make the repair yourself and deduct the cost from your rent.

Key limits on this right:

• The deduction can’t exceed the lesser of $500 or one-half of one month’s rent
• You must submit a paid bill from a tradesperson unrelated to you
• The repair can’t fix a problem you or your guests caused
• This doesn’t apply to owner-occupied buildings with 6 or fewer units, public housing, or condos

Other Remedies

Beyond the repair-and-deduct option, Illinois tenants can pursue rent abatement (a reduction in rent proportional to the diminished value of the unit), lease termination if conditions are severe enough, or damages through a lawsuit. Courts may award the difference between the rent paid and the fair rental value of the unit in its defective condition.

6. Rent Payment Rules

When Is Rent Due?

Rent is due on the date specified in your lease. If your lease doesn’t specify a due date, rent is generally due at the beginning of each rental period. For monthly tenancies, that typically means the first of the month.

Grace Periods

Illinois state law does not require landlords to provide a grace period. If your lease says rent is due on the first, it’s late on the second. Some leases include a 3- to 5-day grace period voluntarily, and if yours does, the landlord must honor it. But don’t assume you have a grace period unless it’s written in your lease.

Late Fees

Illinois law caps late fees at 5% of the monthly rent. If your rent is $1,500/month, the maximum late fee is $75. Your landlord can’t charge daily compounding or accruing late fees — only a single, one-time fee per late payment.

The late fee must be specified in your written lease. If the lease doesn’t mention a late fee, your landlord can’t charge one. Verbal agreements about late fees aren’t enforceable.

Rent Increases

For month-to-month tenancies, your landlord must give you 30 days’ written notice before raising rent. During a fixed-term lease, rent can’t go up unless the lease includes a rent escalation clause. There’s no limit on the amount of the increase (no rent control), so reading the escalation clause before signing is critical.

7. Lease Termination and Breaking a Lease

Ending a Periodic Tenancy

Under 735 ILCS 5/9-207:

• Month-to-month: Either party must give at least 30 days’ written notice before the start of the next rental period
• Week-to-week: At least 7 days’ written notice
• Year-to-year: At least 60 days’ written notice before the lease renewal date

The timing matters. For month-to-month tenancies, the notice must be received before the next rental period starts. If your rent is due on the 1st and you want to leave July 31st, you’d need your notice delivered by June 1st.

Breaking a Fixed-Term Lease

If you’re on a 12-month lease and need to leave early, you’re generally liable for the remaining rent. But Illinois recognizes legitimate reasons for early termination:

• Uninhabitable conditions: If the unit has substantial defects that breach the implied warranty of habitability and the landlord won’t fix them after notice
• Illegal lockout or utility shutoff: Self-help eviction by the landlord
• Military deployment: Under the federal Servicemembers Civil Relief Act (50 U.S.C. §§ 3901–4043)
• Domestic violence: Under the Safe Homes Act (765 ILCS 750), victims of domestic or sexual violence can terminate a lease early with proper documentation

Landlord’s Duty to Mitigate

If you do break a lease, your landlord has a duty to mitigate damages — meaning they must make reasonable efforts to re-rent the unit at a fair price. You’re only liable for rent until a new tenant moves in (plus any reasonable costs the landlord incurred in re-renting). Your landlord can’t just leave the unit empty and bill you for the entire remaining lease term.

8. Retaliation Protections

Illinois updated its retaliation protections significantly. The old Retaliatory Eviction Act (765 ILCS 720) was repealed effective January 1, 2025, and replaced with the broader Landlord Retaliation Act (765 ILCS 721).

Under the new law, your landlord cannot retaliate against you for:

• Reporting building or housing code violations to a government agency
• Complaining to the landlord about unsafe or unsanitary conditions
• Requesting repairs or maintenance
• Joining or organizing a tenant union
• Exercising any other legal right as a tenant

What Counts as Retaliation

Prohibited retaliatory actions include raising your rent, decreasing services, filing for eviction, refusing to renew your lease, or taking any other adverse action because you exercised a protected right.

The One-Year Presumption

Here’s what makes the new law particularly strong: if your landlord takes adverse action within one year of your protected activity, there’s a rebuttable presumption that the action was retaliatory. That means the burden shifts to the landlord to prove they had a legitimate, non-retaliatory reason for the action. The old law didn’t have this presumption.

Remedies

If your landlord retaliates, you can use it as a defense in an eviction proceeding. You may also be able to recover damages, including attorney’s fees, through a separate legal action. The specifics of available damages depend on the circumstances and the court’s discretion.

9. Fair Housing Protections

Illinois has some of the broadest fair housing protections in the country — significantly wider than federal law.

Illinois Human Rights Act

The Illinois Human Rights Act (775 ILCS 5) prohibits discrimination in housing based on:

• Race
• Color
• Religion
• Sex
• National origin
• Ancestry
• Age (40 and over)
• Marital status
• Familial status (having children under 18)
• Physical or mental disability
• Military status
• Sexual orientation
• Gender identity
• Order of protection status
• Source of income (added in 2023)

That last one — source of income — means landlords can’t refuse to rent to you because you use housing vouchers (Section 8), social security, or other lawful income sources. This is a protection many states still don’t offer.

Where to File a Complaint

The Illinois Department of Human Rights (IDHR) enforces the state’s fair housing law. You must file a complaint within 300 days of the discriminatory act. You can file online through the IDHR’s website or by calling 312-814-6200 (Chicago) or 217-785-5100 (Springfield).

Federal Protections

The federal Fair Housing Act (42 U.S.C. §§ 3601–3619) provides baseline protections and is enforced by HUD. You can file a federal complaint with HUD’s Office of Fair Housing and Equal Opportunity within one year of the discriminatory act.

10. Rent Control Status

Illinois has no rent control. The Rent Control Preemption Act of 1997 (50 ILCS 825) prohibits any municipality in the state from enacting rent control ordinances.

This means your landlord can raise the rent by any amount between lease terms, as long as they give proper notice (30 days for month-to-month tenancies). During a fixed-term lease, your rent can’t go up unless the lease includes a rent escalation clause.

Chicago’s Fair Notice Ordinance

While Chicago can’t impose rent control due to state preemption, it does require landlords to give tenants advance written notice of rent increases. The required notice period depends on how long you’ve been a tenant:

• Less than 3 years: 30 days’ notice
• 3 or more years: 120 days’ notice

This doesn’t cap the increase, but it gives long-term tenants more time to plan if their landlord announces a significant jump.

Legislative Efforts

There have been ongoing legislative efforts to repeal or weaken the 1997 preemption, including proposals to cap annual increases and require longer notice periods. As of April 2026, none of these proposals have passed into law. The Rent Control Preemption Act remains in effect statewide.

11. Small Claims Court

Illinois small claims courts are part of the circuit court system and hear cases involving relatively modest amounts of money.

• Maximum claim amount: $10,000
• Where to file: The circuit court in the county where the rental property is located
• Attorney optional: You can represent yourself

If your security deposit dispute is $10,000 or less, small claims court is usually the fastest and cheapest way to resolve it. Bring your lease, photos of the unit at move-in and move-out, copies of all correspondence with your landlord, and the itemized deduction statement (or proof that one was never provided). Given the double-damages penalty in the Security Deposit Return Act, even a modest deposit dispute can be worth pursuing.

12. Key Illinois Statutes

Here’s a quick-reference table of the most important Illinois landlord-tenant statutes. Illinois spreads these rules across multiple acts rather than consolidating them under one chapter.

13. Frequently Asked Questions

14. Sources and References

This guide is based on the following Illinois statutes, case law, and legal resources. Laws can change — always verify current statutes through official sources.

Illinois Statutes

• 765 ILCS 705 — Landlord and Tenant Act
• 765 ILCS 710 — Security Deposit Return Act
• 765 ILCS 715 — Security Deposit Interest Act
• 765 ILCS 721 — Landlord Retaliation Act
• 765 ILCS 742 — Residential Tenants’ Right to Repair Act
• 735 ILCS 5, Article IX — Eviction (Forcible Entry and Detainer)
• 775 ILCS 5 — Illinois Human Rights Act

Key Case Law

• Jack Spring, Inc. v. Little, 50 Ill.2d 351 (1972) — Established the implied warranty of habitability in Illinois

Federal Statutes

• Fair Housing Act — 42 U.S.C. §§ 3601–3619
• Servicemembers Civil Relief Act — 50 U.S.C. §§ 3901–4043

Illinois Legal Aid

• Illinois Legal Aid Online — free legal information and self-help resources for Illinois residents
• IL LawHelp — directory of free legal aid programs across Illinois
• Illinois Attorney General — Landlord and Tenant Rights and Laws

Federal Resources

• HUD Fair Housing Complaint Portal
• Nolo — Illinois Landlord-Tenant Laws Overview

For tenant rights that apply nationwide, see our Tenant Rights Guide. Looking for another state? Browse our state landlord-tenant law directory. Not sure what a legal term means? Check our rental glossary.