← All states

Illinois security deposit law

Return deadline

45 days

Return within 45 days; itemized statement for deductions within 30 days (Security Deposit Return Act, 5+ unit buildings). Chicago’s RLTO is stricter.

Small claims limit

$10,000

What you need to know

  • In 5+ unit buildings: itemized deductions within 30 days, refund within 45 days.
  • Chicago renters get stronger protections under the RLTO, including interest on deposits.
  • Bad-faith withholding exposes the landlord to double the deposit plus attorney’s fees.

Itemization: Itemized statement with estimated or actual costs within 30 days if deducting.

Interest: Buildings with 25+ units: interest required on deposits held over 6 months.

Deposit cap: No statewide cap (Chicago RLTO differs).

If they wrongfully withhold: Bad-faith withholding: 2x the deposit + attorney’s fees.

Statute: 765 ILCS 710

This is general information, not legal advice. Laws change and details vary by city and situation — verify current law or consult a local attorney or tenant’s rights organization before acting.