Illinois Security Deposit Limit

How Illinois compares

30 of 51 US jurisdictions cap security deposits by statute; the other 21 set no statewide cap (local caps can still apply in some cities). Here is how Illinois compares with other states in our database.

Frequently asked questions

How much can a landlord charge for a security deposit in Illinois?

Illinois sets no statewide statutory maximum on security deposits, though local rules can apply — Chicago's RLTO caps deposits at 1.5 months' rent. Elsewhere the amount is negotiated in the lease. Illinois is one of 21 US jurisdictions without a statewide deposit cap. Interest required for units in buildings with 25+ units statewide. Chicago RLTO: max 1.5 months, 5% interest, 45-day return. Must provide itemized statement of deductions.

Does Illinois require landlords to pay interest on security deposits?

Yes — Illinois requires landlords to pay interest on held security deposits (buildings with 25+ units). It is one of 14 US jurisdictions with an interest requirement.

How long does a landlord have to return a security deposit in Illinois?

Illinois landlords generally must return the deposit within 30 days (45 in Chicago) after move-out.