IL · COMM-LEASE · Updated July 2026 · Free
Illinois Commercial Lease Agreement
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Illinois at a glance: Eviction Notice: 5 days' notice to pay (735 ILCS 5/9-209) · Security Deposit: No statutory limit or interest requirements · Governing Law: Illinois Compiled Statutes Chapter 765
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Overview
Commercial Lease Agreements in Illinois
Illinois commercial leases must comply with Chapter 765 of the Illinois Compiled Statutes. Landlords must issue a 5-day notice to pay before filing an eviction (735 ILCS 5/9-209).
Key Facts
Illinois Commercial Lease Agreement — Quick Reference
| Requirement | Illinois Rule |
|---|---|
| Eviction Notice | 5 days' notice to pay (735 ILCS 5/9-209) |
| Security Deposit | No statutory limit or interest requirements |
| Governing Law | Illinois Compiled Statutes Chapter 765 |
Legal Requirements
Illinois Legal Requirements
- Eviction processes must proceed through the Illinois Forcible Entry and Detainer Act.
Governing Laws
Illinois Governing Laws
Read the full text of these laws at Cornell Law School's Illinois legal resources or your state legislature's official website.
Questions & Answers
Illinois Commercial Lease Agreement — Frequently Asked Questions
Can an Illinois commercial landlord lock out a tenant without court?
No. Illinois courts strongly disfavor self-help commercial evictions; landlords must use the judicial eviction process.