Illinois Interest on deposits

Does a landlord have to pay interest on a security deposit in Illinois?

Required if the deposit is held at least 6 months and the building or complex has 25+ units. Interest must be paid or credited to rent every 12 months; willful failure lets the tenant recover an amount equal to the deposit plus costs and attorney's fees.

Verified Source: Security Deposit Interest Act (IL AG guide) · last checked 2026-10-15