Security Deposit Demand Letter - Illinois Guide

What is a Security Deposit Demand Letter?

A formal written request for the return of your rental security deposit from a landlord.

Illinois-Specific Requirements

When writing a security deposit demand letter in Illinois, you must follow specific state regulations:

• Return Deadline: Landlords in Illinois must return security deposits within 45 days after tenant move-out.
• Interest Required: Yes, landlords must pay interest on security deposits.
• Penalty for Wrongful Withholding: Standard damages may apply.
• Governing Statute: Illinois Compiled Statutes 765 ILCS 710

When to Use This Letter

You should send a security deposit demand letter when:

• Your landlord has not returned your security deposit within the legally required timeframe
• Your landlord made improper or undocumented deductions from your deposit
• You left the rental property in good condition and fulfilled all lease obligations
• You need to establish a formal paper trail before taking legal action

What to Include

Your security deposit demand letter should include:

• Your full name and current mailing address
• Rental property address and lease dates
• Move-out date and final walkthrough details
• Original security deposit amount
• Specific deductions you are disputing (if any)
• State-specific deadline for deposit return
• Request for itemized list of deductions
• Clear demand for return of funds within specific timeframe

Sample Language

Here's an example of how to structure your letter:

I am writing to formally request the immediate return of my security deposit in the amount of $[AMOUNT], which was paid on [DATE] for the rental property located at [ADDRESS]. I vacated the premises on [DATE] and left the property in excellent condition. Under [STATE] law, landlords must return security deposits within [TIMEFRAME] days of tenant move-out...

Note: This is sample language only. Your actual letter should be customized to your specific situation.

Common Mistakes to Avoid

• Not sending the letter via certified mail with return receipt
• Missing the state-mandated deadline to request return
• Failing to include your current forwarding address
• Not keeping copies of move-in/move-out inspection reports
• Using emotional or threatening language instead of factual statements
• Not researching your state's specific security deposit laws

Legal Considerations

Security deposit laws vary significantly by state. Most states require landlords to return deposits within 14-60 days after move-out. Many states require landlords to provide itemized deduction lists and may award double or triple damages for wrongful withholding. Always check your state's specific statutes and deadlines.

Additional Illinois Considerations

Consult Illinois state statutes and local regulations for the most current requirements. Consider consulting a licensed attorney in Illinois for complex situations.

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