Illinois Rental Lease Agreement Templates (6)

An Illinois lease agreement is a prevalent contract performed during the transfer of rights related to a real estate property (apartment, condo, house, etc.). The content provided within the document determines the monthly rent, security deposit amount, and term of the rental.

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Last updated February 6th, 2026

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An Illinois lease agreement is a prevalent contract performed during the transfer of rights related to a real estate property (apartment, condo, house, etc.). The content provided within the document determines the monthly rent, security deposit amount, and term of the rental.

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Lease Agreements (6)

Illinois Association of Realtors Residential Lease Agreement: A standard residential agreement by professional Realtors to record a leasing transaction (not appropriate in Chicago).

Download: PDF

Commercial Lease Agreement: For individuals looking to rent a property to a business entity for the purpose of establishing the company’s trade location.

Download: PDF, Word (.docx)

Lease to Own Agreement: This type of contract provides the added option of purchasing the leased property during specific times in the tenancy.

Download: PDF, Word (.docx)
Month-to-Month Lease: Can be ended at any point in time on the condition that thirty (30) days’ notice is supplied by the terminating party (735 ILCS 5/9-207(b)).

Download: PDF, Word (.docx)

Roommate Agreement: Introduced when a resident of a particular property would like to rent out a room/portion of the dwelling to another party.

Download: PDF

Standard Lease Agreement: Documents pertinent information included in a standard one-year residential rental arrangement.

Download: PDF, Word (.docx)
Sublease Agreement: Functions as a secondary agreement when a current tenant re-rents the property to a sub-tenant as per the master lease.

Download: PDF, Word (.docx)

Required Landlord Disclosures

1.) Carbon Monoxide (430 ILCS § 135/10(c)): Illinois landlords inform tenants (in writing) of all carbon monoxide detector maintenance procedures.

2.) Lead-Based Paint(42 U.S. Code § 4852d): All landlords looking to rent a residential property that was assembled before 1978 must first present a lead disclosure.

3.) Radon (420 ILCS § 46/25) – Under Chapter 420 (Nuclear Safety) and the Illinois Radon Awareness Act, landlords disclose any known information relating to the presence of radon on the property.

4.) Rent Concession (765 ILCS § 730): A “rent concession” is an incentive to entice prospective tenants.

5.) Smoke Detector (425 ILCS § 60/3(d)): Landlords must supply tenants with a written disclosure policy on smoke detector service.

6.) Utility Payment (765 ILCS § 740): Apartment and condo landlords where tenants share utilities must disclose the breakdown of expenses.

When is Rent Due?

Grace Period: Illinois does not generally regulate grace periods; however, it explicitly requires a 5-day grace period for mobile home communities. (770 ILCS 95/7.10)

Unpaid Rent: Landlords issue a 5-day notice requiring full rent payment before initiating further actions (735 ILCS 5/9-209).

Late Fees

Landlords use the lease impose a reasonable non-punitive late fee for missed payments accordingly (IL AG Rights and Laws).

Mobile Homes: Illinois explicitly allows the greater of “20 dollar or 20% late fee…for each month an occupant does not pay rent” (770 ILCS 95/7.10)

NSF Fee

Illinois allows the greater of a $25 fee or the expenses resulting from the bad check, accordingly (810 ILCS 5/3-806).

Security Deposit Maximum ($)

Illinois does not limit the security deposit a residential lease requires; therefore, leaving it up to the landlord and tenant.

Security Deposit Return($)

Returning to Tenant:The Illinois Security Deposit Act explicitly requires landlords deliver a tenant’s security deposit (and interest) within 45 days of lease termination (Security Deposit Return Act).

Itemized List: Landlords can deduct from the security to restore the premises, but must supply an itemized list of each expense (Security Deposit Return Act).

Landlord’s Right to Enter

Standard Entry: Illinois specifically forbids landlords from entering by force unless by court order or required by law (735 ILCS 5/Art).

Emergency Entry: While Illinois does not explicitly permit entry during an emergency, some ordinances, such as those in Chicago and Cook County, allow emergency entry (Chicago Mun. Code § 5-12-050).

Absence

Landlords can issue a 5-day rent demand notice since Illinois strictly forbids forcible entry (735 ILCS 5/9-101; 735 ILCS 5/9-209).

Repair and Deduct

Illinois tenants deduct up to $500 of a half-month’s rent (whichever is less) if the landlord disregards a 14-day notice to repair. (765 ILCS 742/5)

Tenant Breaking a Lease (Early)

Duty To Mitigate: Illinois specifically states that landlords must take “reasonable efforts” to lower the cost of the damages resulting from a tenant’s early lease termination (735 ILCS 5/9-213.1).

Domestic Violence: Landlords must accept a tenant’s 3-day notice of termination whenever the reason is domestic or sexual violence (765 ILCS 750/15).

Active Military: Military service members may terminate their lease to report to duty or honor reassignment (50 USC § 3955).

Landlord Noncompliance: Landlords may not interrupt utilities, violate health and safety codes, or retaliate against tenants (765 ILCS 735/1.4.; 765 ILCS 735/0.01).

Landlord Harassment: In addition to prohibiting landlords from inappropriately terminating a tenant’s utilities, tenants:

Is an Oral Lease enforceable?

Illinois courts enforce oral leases (under one year); however, they can be difficult to prove in many cases(740 ILCS 80/).

Renewing a Lease

Illinois does not necessarily govern lease renewals beyond upholding the contract; however, each party must comply with its proper termination/renewal options (735 ILCS 5).

Unclaimed Property

Generally, the courts will enforce legal lease terms for unclaimed property; however, landlords cannot break the law or the lease with self-help methods like forcible entry and removing personal property (735 ILCS 5).

Landlord-Tenant Laws

The Landlord and Tenant Act (765 ILCS § 705) explicitly presents the current framework for landlord-tenant interaction. The Illinois Attorney General also offers a Landlord/Tenant Rights & Laws Fact Sheet.