What Is a Demand Letter in Illinois?
A demand letter in Illinois is a formal written notice sent to a person or business that owes you money or has failed to meet a legal or contractual obligation. It describes the dispute, identifies the amount owed, and sets a deadline for resolution. Illinois courts expect parties to make reasonable attempts to resolve disputes before filing suit, and a demand letter serves as evidence of that effort.
Illinois-Specific Legal Requirements
Illinois does not have a blanket requirement to send a demand letter before filing a civil lawsuit. However, several Illinois statutes require or strongly encourage prior written notice:
- Consumer Fraud and Deceptive Business Practices Act: Under 815 ILCS 505, sending a demand letter before filing suit can establish your claim for damages and attorney fees.
- Security deposit disputes: Under the Chicago Residential Landlord Tenant Ordinance and 765 ILCS 710, landlords must provide itemized statements within specific timeframes. Tenants should send written demands for unreturned deposits.
- Bad check claims: Illinois law allows recovery of damages for dishonored checks, and a written demand establishes the basis for statutory damages.
- Wage claims: Under the Illinois Wage Payment and Collection Act (820 ILCS 115), employees should make written demands for unpaid wages before filing complaints with the Department of Labor.
Certified Mail Requirements
Illinois does not require certified mail for most demand letters. However, certified mail with return receipt requested is the standard recommendation. It provides proof of mailing and delivery that courts readily accept as evidence. For certain statutory demands, such as those under the Forcible Entry and Detainer Act, specific service methods are required.
Small Claims Court in Illinois
Illinois handles small claims in the Small Claims Division of the Circuit Court. Key details include:
- Claim limit: Up to $10,000
- Filing fees: $10 to $200 depending on the county and the amount claimed. Cook County fees are generally higher than downstate counties.
- Court name: Small Claims Division of the Circuit Court
- Attorney representation: Allowed but not required
- Where to file: In the county where the defendant resides or where the transaction took place
- Mandatory arbitration: Some counties require mandatory court-annexed arbitration for claims under certain thresholds before allowing a trial
Illinois Small Claims Court is designed to resolve disputes quickly. Many counties offer evening court sessions to accommodate working parties.
Statute of Limitations in Illinois
Your demand letter should be sent well within the statute of limitations for your type of claim. Once the deadline passes, your right to sue is lost:
- Written contracts: 10 years (735 ILCS 5/13-206)
- Oral contracts: 5 years (735 ILCS 5/13-205)
- Property damage: 5 years (735 ILCS 5/13-205)
- Personal injury: 2 years (735 ILCS 5/13-202)
- Fraud: 5 years (735 ILCS 5/13-205)
- Construction defects: 4 years from discovery (735 ILCS 5/13-214)
Illinois has one of the longest statutes of limitations for written contracts in the country at 10 years, giving creditors significant time to pursue claims.
Interest Rates on Judgments
Illinois sets the post-judgment interest rate at 9 percent per year (735 ILCS 5/2-1303). For pre-judgment interest, the rate is 5 percent per year on most claims. If your contract specifies an interest rate, that rate applies as long as it does not violate the Illinois Interest Act (815 ILCS 205). You can request interest from the date the payment was due in your demand letter.
Illinois also allows the recovery of attorney fees and costs in cases involving consumer fraud under 815 ILCS 505/10a, which adds leverage when negotiating with businesses.
What to Include in Your Illinois Demand Letter
Identifying Information
- Your full legal name and address
- The recipient's full legal name and address
- The date of the letter
Description of the Dispute
- A clear factual account of the agreement or incident
- The specific obligations the other party failed to fulfill
- Dates of relevant events
- Reference to any written contracts, invoices, or receipts
The Demand
- The exact amount of money you are claiming
- An itemized breakdown of all damages
- Interest calculated at the contractual rate or the statutory rate
- A response deadline of 14 to 30 days
- A statement that you will file in the Small Claims Division of the Circuit Court if the matter is not resolved
Supporting Documentation
- Copies of contracts, invoices, estimates, or receipts
- Photographs or other evidence of damages
- Records of prior communication about the dispute
- Proof of payments you have made
Timeline Expectations
- Day 1: Send the demand letter via certified mail with return receipt
- Days 1-14: Allow time for the recipient to receive and review the letter
- Days 14-30: Follow up if no response has been received
- Day 30 and beyond: File your claim in Small Claims Court or consult an attorney for larger claims
When to Escalate to Court
Consider filing in Illinois Small Claims Court if:
- The recipient does not respond to your demand letter
- The recipient disputes the claim without providing evidence
- Settlement negotiations have reached an impasse
- The statute of limitations is approaching
For claims between $10,000 and $50,000, file in the regular division of the Circuit Court. For claims over $50,000, the case will be heard in the Law Division. Some counties require mandatory arbitration before trial for claims under a certain amount, which can provide an additional opportunity for settlement.