How long does a landlord have to return a security deposit in Illinois?
In Illinois, a landlord has 45 days after the tenancy ends to return the security deposit, together with an itemised statement of any deductions. 30 days to deliver the itemized statement, 45 days to return the balance (buildings with 5+ units). Illinois also requires interest to be paid on the deposit: Interest required on buildings with 25+ units held 6+ months; Chicago RLTO applies its own rate. This is 765 ILCS 710/1; 765 ILCS 715/1.
| What | Illinois |
|---|---|
| Deadline to return | 45 days |
| Itemized statement required | Yes |
| Interest payable to the tenant | Yes |
Source
765 ILCS 710/1; 765 ILCS 715/1
Read the statute in the Illinois Compiled Statutes (Illinois General Assembly): ilga.gov.
This is a summary of a published statute, not legal advice. Rules change, local ordinances can add to them, and the terms of a specific lease may differ. Check the citation and speak to a lawyer before acting.
How Seayora uses this rule
Seayora computes the deadline this rule sets from the tenancy’s own dates, shows it on the deposit statement, and reminds the landlord before it falls due — so the answer above is not reference material sitting beside the product, it is the rule the product enforces.
Guides on this rule
- Chicago’s Residential Landlord and Tenant Ordinance (RLTO) Explained — The Chicago RLTO for landlords: which units it covers, security deposit and interest rules, the late fee cap, notice periods, entry, and pending 2026 changes.
- Move-In Condition Reports: The States That Require One — Washington, Massachusetts and Virginia require a written record of a rental’s condition at move-in, with deadlines and penalties that protect the deposit.
- Security Deposits Explained: Rules and Getting It Back — How security deposits work: typical amounts and state caps, what a deposit may cover, return deadlines, and how renters get the full deposit back.
- What Happens to Tenants When a Rental Property Is Sold or Foreclosed — The federal 90-day foreclosure notice, when a lease survives a foreclosure, and how California, New York and Texas move a security deposit to a new owner.
Compare this rule in every state
More Illinois rules
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- Every Illinois rule on one page
The same question in other states
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