Illinois· Answer
Is a Illinois landlord required to justify a rent increase?
Short answer
Illinois has no statewide rent cap, so no justification is required. The landlord may raise rent by any amount with the proper advance notice. Rent control or stabilization ordinances in specific cities (where applicable in Illinois) may impose justification.
Source: Lease-based; 735 ILCS 5/9-207 (30-day month-to-month termination default)
Honest limits
This is an informational answer based on Lease-based; 735 ILCS 5/9-207 (30-day month-to-month termination default) as of early 2026. It is not legal advice. Housing law changes year to year and local ordinances (especially in rent-controlled or rent-stabilized cities) can override or add to state law. For contested cases, consult a Illinois-licensed attorney.
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