Illinois Security Deposit Law: Deadlines, Penalties & How to Get Your Deposit Back
Illinois gives a landlord 45 days (45 days to return; 30 days to send an itemized statement of deductions) to return your security deposit or send an itemized statement of deductions, under 765 ILCS 710. If that window has passed and you haven’t been paid, you have leverage — here’s exactly what the statute says and how to act on it.
Illinois security-deposit law at a glance
- Deadline to return / itemize
- 45 days
- 45 days to return; 30 days to send an itemized statement of deductions
- Bad-faith penalty exposure
- Up to 2×
- a court may award if it finds bad faith
- Itemization required?
- Yes
- missing the deadline can forfeit the right to withhold
- Attorney’s fees recoverable?
- Yes
- under 765 ILCS 710
How long does a Illinois landlord have?
Under 765 ILCS 710, a Illinois landlord has 45 days (45 days to return; 30 days to send an itemized statement of deductions) after your tenancy ends to return your deposit or provide an itemized statement of any deductions. Illinois requires that itemized statement when the landlord keeps any part of the deposit. Count from the day the tenancy ended. If the deadline has passed and you haven’t been paid or itemized, your landlord is late — and that’s the leverage your demand letter is built on.
What penalty can a Illinois landlord face?
A landlord who keeps a deposit in bad faith may owe up to 2× the deposit. Specifically, under 765 ILCS 710, Illinois law lets a tenant seek up to two times the deposit as a penalty if a court finds the landlord failed to comply, plus court costs. The Illinois Security Deposit Return Act applies to landlords of 5 or more units; smaller landlords may not be covered.
Important: any penalty is something a court may award if it finds the landlord acted in bad faith — it is never automatic, and you would still need to make that case. Illinois also lets a prevailing tenant recover attorney's fees.
How to get your deposit back in Illinois
- 1. Send a written demand. Put the deadline your landlord missed and the statute (765 ILCS 710) in writing, by certified mail with return receipt, so you have proof of the date they received it.
- 2. Keep your records. Move-out photos, the walkthrough checklist, your lease, and proof you gave a forwarding address are your evidence if the landlord disputes the claim.
- 3. If they don’t pay, file in small claims. You can ask a Illinois small claims court to order the deposit returned, and — under 765 ILCS 710 — to seek up to two times the deposit as a penalty if a court finds the landlord failed to comply, plus court costs plus attorney's fees, which the court may award if you prove your case. The small-claims dollar limit varies by court within the state, so check your county’s limit before filing.
Generate your Illinois demand letter
Run the free leverage check — enter your deposit and how long it’s been, and we’ll show you exactly how many days past Illinois’s 45-day deadline your landlord is and the penalty exposure under 765 ILCS 710. Then, for a flat $39, get a firm, statute-cited demand letter you send yourself plus a Illinois small-claims escalation roadmap. You keep 100% of whatever you recover.
Illinois security deposit FAQ
- How long does a landlord have to return a security deposit in Illinois?
- Illinois law gives a landlord 45 days (45 days to return; 30 days to send an itemized statement of deductions) to return the deposit or send an itemized statement of any deductions, under 765 ILCS 710. Count from the day your tenancy ended; if that window has passed and you haven't been paid or itemized, your landlord is late.
- What penalty can a Illinois landlord face for wrongfully keeping a deposit?
- Under 765 ILCS 710, up to two times the deposit as a penalty if a court finds the landlord failed to comply, plus court costs. That is something a court may award if it finds bad faith — it is not automatic, and you would still need to make that case. The Illinois Security Deposit Return Act applies to landlords of 5 or more units; smaller landlords may not be covered. Illinois also lets a prevailing tenant recover attorney's fees.
- Does my Illinois landlord have to itemize deductions?
- Yes. Under 765 ILCS 710, a Illinois landlord must provide an itemized statement of any deductions within the return window. Missing the deadline can forfeit the landlord's right to keep any of the deposit.
- Can I take my Illinois landlord to small claims court over my deposit?
- Yes. If your landlord won't return the deposit after a written demand, you can file in Illinois small claims court (small-claims dollar limits vary by court within the state). There you can ask the court to order the deposit returned, and — under 765 ILCS 710 — to seek up to two times the deposit as a penalty if a court finds the landlord failed to comply, plus court costs plus attorney's fees, which the court may award if you prove your case. Small claims is designed to be navigated without a lawyer.
Sources
The Illinois facts on this page are drawn from 765 ILCS 710 and the references below. Always confirm the current text of the statute for your situation.