Illinois Security Deposit Demand Letter Template
Verified: Mar 2026A professional demand letter template specifically designed for Illinois's security deposit laws, citing 765 ILCS 710 (Security Deposit Return Act) and referencing the 30-45 return deadline.
Reviewed: 2026-03-03
Reviewer: ReclaimDeposit legal research team
30-45
Deadline
Primary Statute
2x deposit amount for willful failure to comply
Potential Penalty
Key Elements of an Illinois Demand Letter
- 130-45 day return deadline
- 2Itemized statement with receipts required
- 3Interest required on deposits (25+ units, 6+ months)
- 4Willful violation penalty (2x + attorney fees)
- 5Chicago RLTO may apply separately
Sample Letter Excerpt
This is a sample excerpt. Your personalized letter will include your specific dates, amounts, deductions, and complete legal arguments.
Fast path: template to enforcement
Use these pages in sequence so your documentation stays court-ready.
Review Illinois security deposit law summary
Confirm deadline, documentation, and penalty rules before sending.
Illinois deadline calculator
Validate your exact deadline window using move-out date and state logic.
Illinois small claims court guide
Prepare escalation steps if the landlord ignores your demand.
Bad-faith penalty guide
Identify multiplier penalty signals and strengthen your leverage.