Illinois Security Deposit Law
Return deadline, statute, and penalties for Illinois renters.
Return deadline
45 days
Itemized statement due in 30 days; deposit due in 45 days. Chicago's RLTO has separate rules.
Penalty for late or wrongful withholding
2× the deposit plus court costs and attorney fees
Governing statute
765 ILCS 710/1
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Check my Illinois deadlineIllinois security deposit questions
How long does a landlord have to return a security deposit in Illinois?
Under 765 ILCS 710/1, a Illinois landlord generally has 45 days to return the deposit or provide an itemized statement of deductions. Itemized statement due in 30 days; deposit due in 45 days. Chicago's RLTO has separate rules.
What happens if a Illinois landlord returns the deposit late?
2× the deposit plus court costs and attorney fees. Courts usually decide whether a penalty applies, and many states require showing the landlord acted in bad faith.
Can a Illinois landlord deduct from my deposit?
Landlords can generally deduct for unpaid rent and damage beyond normal wear and tear, and must explain deductions in writing.
How do I demand my security deposit back in Illinois?
Send your landlord a written demand letter that cites 765 ILCS 710/1, states the amount owed, and sets a deadline to pay. Send it by certified mail and keep a copy. If the landlord doesn't pay, the letter is useful evidence in small claims court.
Last reviewed October 21, 2026. Read the official text of 765 ILCS 710/1. This page is general information, not legal advice. See our terms of use.