What is the security deposit cap in Illinois?

Illinois: No statewide cap (Chicago RLTO separate).

How long does a Illinois landlord have to return the security deposit?

Illinois: 30+15 days with itemization, 45 days without.

How many days pay-or-quit notice does Illinois require?

Illinois: 5 days (735 ILCS 5/9-209).

How much notice to terminate a month-to-month tenancy in Illinois?

Illinois: 30 days (735 ILCS 5/9-207).

Does Illinois have rent control?

Illinois: None (local preemption, 50 ILCS 825).

What is the security deposit cap in Illinois?

Illinois does not have a statewide statutory cap on the security deposit amount. Local ordinances in specific cities may impose caps. Reference: 765 ILCS 705, 710, 715, 720, 742.

How long does a landlord have to return a security deposit in Illinois?

Illinois requires the landlord to return the security deposit (or an itemized statement of deductions) within 30 days of the tenant vacating. Reference: 765 ILCS 705, 710, 715, 720, 742. Missing the deadline can forfeit the landlord's right to withhold any portion of the deposit and, in some states, expose the landlord to double or treble damages.

How much notice is required for a rent increase in Illinois?

Illinois requires 30 days of advance written notice for a rent increase. Reference: 765 ILCS 705, 710, 715, 720, 742.

What is the late fee cap in Illinois?

Illinois does not impose a specific statutory percentage cap on late fees. Courts generally require the fee to be reasonable and tied to the landlord's actual damages. Reference: 765 ILCS 705, 710, 715, 720, 742.

How many days is the pay-or-quit notice in Illinois?

Illinois requires a 5-day pay-or-quit notice before an unlawful detainer or eviction filing can be initiated for non-payment of rent. Reference: 765 ILCS 705, 710, 715, 720, 742.

How much notice terminates a month-to-month tenancy in Illinois?

Illinois requires 30 days of written notice to end a month-to-month tenancy. Reference: 765 ILCS 705, 710, 715, 720, 742.

What mandatory disclosures does Illinois require in a lease?

Illinois leases must include these disclosures: Federal lead-based paint disclosure (pre-1978 units); Radon disclosure (Illinois Radon Awareness Act, 420 ILCS 46); Utility cost disclosure (765 ILCS 735/5); Concessions disclosure (765 ILCS 730); Chicago RLTO summary attached (Chicago units). Missing a required disclosure can invalidate the lease's enforceability on that point and sometimes on the lease as a whole. Reference: 765 ILCS 705, 710, 715, 720, 742.

Which Illinois statute governs landlord-tenant law?

Chicago Residential Landlord and Tenant Ordinance (RLTO) imposes stricter rules on Chicago units including security deposit interest obligations. The primary citation used across LeaseKit templates for this state is: 765 ILCS 705, 710, 715, 720, 742.

LeaseKit/States/Illinois

Illinois · Full coverage

Illinois landlord-tenant law.

Quick-reference on Illinois residential landlord-tenant rules, primary statute 735 ILCS 5/9, 765 ILCS 705, 765 ILCS 710, 420 ILCS 46 (radon). Below are every LeaseKit tool that applies to Illinois: calculators, templates, free checklist PDF, blog guides, and frequently asked questions.

Recent changes

PA 103-298 repealed 420 ILCS 46/25, added 46/26 for radon disclosure effective 2024

Quick reference

Illinois rules at a glance.

Deposit cap: No statewide cap (Chicago RLTO separate)
Return deadline: 30+15 days with itemization, 45 days without
Late fee cap: No statewide cap
Pay-or-quit notice: 5 days (735 ILCS 5/9-209)
Month-to-month termination: 30 days (735 ILCS 5/9-207)
Rent cap: None (local preemption, 50 ILCS 825)

Templates, $29 each

Illinois documents.

Residential lease

$29 signature-ready PDF →

Notice to quit

$29 signature-ready PDF →

Rent increase notice

$29 signature-ready PDF →

Move-out checklist

$29 signature-ready PDF →

Free calculators

Answer questions for free before the PDF.

Deep-dive articles

Written for Illinois landlords.

Common questions

Illinois landlord FAQ.

Top Illinois cities

Chicago, Aurora, Naperville, Joliet, Rockford. Local ordinances in major cities can add stricter rules (especially rent control, just-cause eviction, and inspection requirements). Always check the city code in addition to the state statute.

Honest limits

This is a quick reference, not legal advice. Illinois landlord-tenant law changes year to year. Always verify the current statute text and any local ordinances before relying on this page for a specific dispute. For contested cases, consult a Illinois-licensed attorney.

State-specific answers

What landlords ask about IL

What is the security deposit cap in Illinois?: Illinois does not have a statewide statutory cap on the security deposit amount. Local ordinances in specific cities may impose caps. Reference: 765 ILCS 705, 710, 715, 720, 742.
How long does a landlord have to return a security deposit in Illinois?: Illinois requires the landlord to return the security deposit (or an itemized statement of deductions) within 30 days of the tenant vacating. Reference: 765 ILCS 705, 710, 715, 720, 742. Missing the deadline can forfeit the landlord's right to withhold any portion of the deposit and, in some states, expose the landlord to double or treble damages.
How much notice is required for a rent increase in Illinois?: Illinois requires 30 days of advance written notice for a rent increase. Reference: 765 ILCS 705, 710, 715, 720, 742.
What is the late fee cap in Illinois?: Illinois does not impose a specific statutory percentage cap on late fees. Courts generally require the fee to be reasonable and tied to the landlord's actual damages. Reference: 765 ILCS 705, 710, 715, 720, 742.
How many days is the pay-or-quit notice in Illinois?: Illinois requires a 5-day pay-or-quit notice before an unlawful detainer or eviction filing can be initiated for non-payment of rent. Reference: 765 ILCS 705, 710, 715, 720, 742.
How much notice terminates a month-to-month tenancy in Illinois?: Illinois requires 30 days of written notice to end a month-to-month tenancy. Reference: 765 ILCS 705, 710, 715, 720, 742.
What mandatory disclosures does Illinois require in a lease?: Illinois leases must include these disclosures: Federal lead-based paint disclosure (pre-1978 units); Radon disclosure (Illinois Radon Awareness Act, 420 ILCS 46); Utility cost disclosure (765 ILCS 735/5); Concessions disclosure (765 ILCS 730); Chicago RLTO summary attached (Chicago units). Missing a required disclosure can invalidate the lease's enforceability on that point and sometimes on the lease as a whole. Reference: 765 ILCS 705, 710, 715, 720, 742.
Which Illinois statute governs landlord-tenant law?: Chicago Residential Landlord and Tenant Ordinance (RLTO) imposes stricter rules on Chicago units including security deposit interest obligations. The primary citation used across LeaseKit templates for this state is: 765 ILCS 705, 710, 715, 720, 742.

Illinois landlord-tenant law.

Recent changes

PA 103-298 repealed 420 ILCS 46/25, added 46/26 for radon disclosure effective 2024

Quick reference

Illinois rules at a glance.

Deposit cap: No statewide cap (Chicago RLTO separate)
Return deadline: 30+15 days with itemization, 45 days without
Late fee cap: No statewide cap
Pay-or-quit notice: 5 days (735 ILCS 5/9-209)
Month-to-month termination: 30 days (735 ILCS 5/9-207)
Rent cap: None (local preemption, 50 ILCS 825)

Top Illinois cities

Honest limits

State-specific answers

What landlords ask about IL

What is the security deposit cap in Illinois?: Illinois does not have a statewide statutory cap on the security deposit amount. Local ordinances in specific cities may impose caps. Reference: 765 ILCS 705, 710, 715, 720, 742.
How long does a landlord have to return a security deposit in Illinois?: Illinois requires the landlord to return the security deposit (or an itemized statement of deductions) within 30 days of the tenant vacating. Reference: 765 ILCS 705, 710, 715, 720, 742. Missing the deadline can forfeit the landlord's right to withhold any portion of the deposit and, in some states, expose the landlord to double or treble damages.
How much notice is required for a rent increase in Illinois?: Illinois requires 30 days of advance written notice for a rent increase. Reference: 765 ILCS 705, 710, 715, 720, 742.
What is the late fee cap in Illinois?: Illinois does not impose a specific statutory percentage cap on late fees. Courts generally require the fee to be reasonable and tied to the landlord's actual damages. Reference: 765 ILCS 705, 710, 715, 720, 742.
How many days is the pay-or-quit notice in Illinois?: Illinois requires a 5-day pay-or-quit notice before an unlawful detainer or eviction filing can be initiated for non-payment of rent. Reference: 765 ILCS 705, 710, 715, 720, 742.
How much notice terminates a month-to-month tenancy in Illinois?: Illinois requires 30 days of written notice to end a month-to-month tenancy. Reference: 765 ILCS 705, 710, 715, 720, 742.
What mandatory disclosures does Illinois require in a lease?: Illinois leases must include these disclosures: Federal lead-based paint disclosure (pre-1978 units); Radon disclosure (Illinois Radon Awareness Act, 420 ILCS 46); Utility cost disclosure (765 ILCS 735/5); Concessions disclosure (765 ILCS 730); Chicago RLTO summary attached (Chicago units). Missing a required disclosure can invalidate the lease's enforceability on that point and sometimes on the lease as a whole. Reference: 765 ILCS 705, 710, 715, 720, 742.
Which Illinois statute governs landlord-tenant law?: Chicago Residential Landlord and Tenant Ordinance (RLTO) imposes stricter rules on Chicago units including security deposit interest obligations. The primary citation used across LeaseKit templates for this state is: 765 ILCS 705, 710, 715, 720, 742.