Illinois Security Deposit Law
Statute text last checked: October 23, 2026
Return deadline
30 days (itemized statement) / 45 days (full refund)
Statute
765 ILCS 710/1 (Security Deposit Return Act)
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The Security Deposit Return Act does not set a maximum deposit amount. Some cities, such as Chicago, have their own ordinances.
When must the deposit be returned?
To deduct for damage, the landlord must send an itemized statement of damage with estimated or actual repair costs within 30 days after the tenant vacates (or the right of possession ends, if later). If no statement is sent, the full deposit must be returned within 45 days.
Key rules
- Paid receipts, or copies, must be attached. If only estimates were given, receipts must follow within 30 days.
- If the lease specifies costs for particular cleaning or repair items, the landlord may withhold those amounts for damage beyond normal wear and tear.
- The statement may be delivered by personal delivery, postmarked mail, or email to a verified address the tenant provided.
- Which rentals the Act covers is set out in 765 ILCS 710/3.
If the landlord doesn't follow the law
If a court finds the landlord refused to provide the statement, or provided it in bad faith, and did not return the deposit on time, the landlord owes twice the deposit due, plus court costs and reasonable attorney's fees.
Frequently asked questions
How long does an Illinois landlord have to return a deposit?
The itemized damage statement is due within 30 days. If none is sent, the full deposit is due within 45 days of move-out.
What is the penalty for not returning a deposit in Illinois?
Twice the amount of the deposit due, plus court costs and attorney's fees, when a court finds the statutory requirements were not met.
Sources
- 765 ILCS 710/1 (Security Deposit Return Act) (official text)
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