45 days to return the deposit; cap no statutory cap.
For buildings with 5 or more units, the landlord must give an itemized statement of deductions within 30 days and return the balance within 45 days. With no deductions, the deposit is due within 45 days.
What this means for you: The strongest deposit protections apply to larger buildings (5+ units). Smaller buildings rely more on the lease and common law.
Your next step: Give a forwarding address in writing. If the deadline passes, send a demand letter; Chicago tenants have additional remedies under the RLTO.
Source: 765 ILCS 710/1 (Security Deposit Return Act). Reviewed 2026-06-16.
Note: Chicago's Residential Landlord and Tenant Ordinance (RLTO) imposes stricter rules and deposit interest within the city.
More Illinois rights: Illinois eviction · Illinois repairs · Illinois entry notice · Illinois rent increase.
Security deposit in nearby states: Wisconsin (21 days to return the deposit; cap no statutory cap) · Indiana (45 days to return the deposit; cap no statutory cap) · Iowa (30 days to return the deposit; cap 2 months' rent) · Missouri (30 days to return the deposit; cap 2 months' rent).
General legal information, not legal advice. Laws change and vary by locality; consult a licensed attorney or your local housing authority.
Updated July 2026