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 |
| Itemised statement required | Yes |
| Interest payable to the tenant | Yes |
Source
765 ILCS 710/1; 765 ILCS 715/1 — last checked 2026-09-15.
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 lease and 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.
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