Two ways to rent in Illinois
The same free builder makes both — pick the one that fits and the agreement adapts automatically.
Standard Residential Lease Agreement
A fixed-term lease with set start and end dates (usually one year) — best for a long-term tenant.
Create a fixed-term leaseMonth-to-Month Rental Agreement
A flexible tenancy that renews each month and ends with proper written notice from either party.
Create a month-to-month agreementOverview
Renting out a home in Illinois? A residential lease agreement is the contract that protects both sides — it sets the rent, the term, the deposit, and the rules the landlord and tenant agree to, and it's your proof of what was agreed if a dispute ever comes up. Illinois tenancies are governed by the state's Landlord and Tenant Act (765 ILCS 705) and the Security Deposit Return Act (765 ILCS 710), and some cities such as Chicago add their own ordinance on top.
Illinoislease rules & requirements
Security deposit
Illinois sets no statewide maximum on a residential security deposit — the amount is whatever the lease states, and one month's rent is the common benchmark. Under the Security Deposit Return Act, a landlord who owns a building with 5 or more units must give an itemized statement of any deductions within 30 days and return the balance within 45 days after move-out (30 days when nothing is withheld). Smaller buildings have no fixed statutory deadline, so the lease and good practice control.
Late fees
Illinois has no statewide cap on late fees, so a fee must simply be reasonable in relation to the rent. Some local ordinances are stricter — Chicago's RLTO, for example, limits late fees to $10 on the first $500 of monthly rent plus 5% of any amount above $500 — so check the rules where the home sits.
Landlord entry & notice
Illinois has no statewide statute setting how much notice a landlord must give before entering, so the lease controls and at least 48 hours' notice during reasonable daytime hours is a sensible standard. Local ordinances can require more — Chicago's RLTO calls for 2 days' notice — so confirm any city rules that apply.
Required disclosures
Beyond the federal lead-based-paint disclosure for homes built before 1978, an Illinois landlord must identify the owner or manager authorized to receive notices, and disclose radon hazards under the Illinois Radon Awareness Act if the landlord has the relevant records. Landlords who hold a deposit and must pay interest also have to disclose where it is held; local ordinances such as Chicago's add further disclosures.
Ending the lease
A fixed-term lease simply ends on its end date. A month-to-month tenancy can be ended by either party with at least 30 days' written notice under 735 ILCS 5/9-207, served before the next rent date.
Does it need notarizing?
No. An Illinois residential lease doesn't need to be notarized or witnessed — it's binding once the landlord and tenant(s) sign. Each party should keep a signed copy.
This is general information, not legal advice. Confirm the current rules under Illinois law (765 ILCS 705 and the Security Deposit Return Act, 765 ILCS 710).
How to write a Illinois lease agreement
- 1
Choose the lease type — a fixed-term lease (set start and end dates) or a month-to-month tenancy.
- 2
Add the property details and the landlord's and tenant(s)' full legal names and addresses.
- 3
Set the monthly rent, the due date, accepted payment methods, and any late or NSF fees.
- 4
Set the security deposit and when it's returned, plus any pet, parking, smoking, or utility terms.
- 5
Add the required disclosures (lead-based paint for pre-1978 homes, radon, owner or manager contact) and any house rules, including any local ordinance items.
- 6
The landlord and every tenant sign and date the lease — and each keeps a copy.
Ready to create your Illinois lease agreement?
Fill the form, watch it build live, and download the PDF — free, no signup.
Open the free builderWhat to include
- Landlord & tenant(s) — names and addresses
- Property, lease type & term
- Rent — amount, due date & payment methods
- Security deposit, late & NSF fees
- Pets, parking, smoking & utilities
- Disclosures & signatures
Illinois lease agreement FAQ
Does an Illinois residential lease need to be notarized?
No. A residential lease in Illinois doesn't have to be notarized or witnessed. It's legally binding once the landlord and tenant(s) sign it.
Is there a limit on the security deposit in Illinois?
No. Illinois doesn't cap residential security deposits by statute — the amount is set by the lease, and one month's rent is the common benchmark. Some cities regulate deposits more closely, so check your local ordinance.
How long does an Illinois landlord have to return the deposit?
For buildings with 5 or more units, the Security Deposit Return Act requires an itemized statement of deductions within 30 days and the balance within 45 days after move-out (30 days if nothing is withheld). Smaller buildings have no fixed statutory deadline, so the lease should set one and prompt return is best practice.
How much can a late fee be in Illinois?
Illinois sets no statewide cap, so a late fee just has to be reasonable. Local rules can be stricter — Chicago caps it at $10 on the first $500 of rent plus 5% of the rest — so confirm the ordinance where the home is located.
How much notice ends a month-to-month lease in Illinois?
At least 30 days' written notice from either the landlord or the tenant under 735 ILCS 5/9-207, given before the next rent date.
Does the landlord have to give notice before entering in Illinois?
Illinois has no statewide statute setting a notice period, so the lease governs. At least 48 hours' notice during reasonable hours is a sensible standard, and some cities such as Chicago require 2 days by ordinance.
What must an Illinois lease disclose?
The federal lead-based-paint disclosure for pre-1978 homes, the owner or manager authorized to receive notices, and radon information under the Radon Awareness Act when the landlord has records. Where deposit interest is owed, the landlord discloses where the deposit is held, and local ordinances can add more.
Is this Illinois lease agreement really free?
Yes — completely. Fill it in, preview it live, and download the PDF with no signup, no credit card, and no watermark. Unlike sites that charge a fee or push a subscription to download, there's nothing to pay here.