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Illinois rules for deposits, notice, and late fees

Deposit, notice, and late-fee figures cited to the state statute.

RuleRule text
Deposit return deadlineExcept as subsection (b) provides, a lessor of residential real property who has received a security deposit may not withhold any part of that deposit as reimbursement for property damage unless the lessor has, within 30 days of the date the lessee vacated the premises or within 30 days of the date the lessee's right of possession ends, whichever is later, furnished an itemized statement of the damage and the estimated or actual cost, attaching paid receipts or copies. If no such statement and receipts are furnished, the lessor shall return the security deposit in full within 45 days of the date the lessee vacated the premises. 765 ILCS 710/1. As of 2026-10-09.
Notice to end a tenancyExcept as Section 9-207.5 provides, in a tenancy from week to week where the tenant holds over without special agreement, the landlord may terminate the tenancy by 7 days' written notice. Except as Section 9-207.5 provides, in a tenancy for any term less than one year, other than week to week, where the tenant holds over without special agreement, the landlord may terminate the tenancy by 30 days' written notice. 735 ILCS 5/9-207. As of 2026-10-09.
Eviction noticeA landlord may, any time after rent is due, demand payment and notify the tenant in writing that unless payment is made within a time mentioned in the notice, not less than 5 days after service, the lease will be terminated. If the tenant does not pay the rent due within the time stated in the notice, the landlord may consider the lease ended and commence an eviction action without further notice or demand. 735 ILCS 5/9-209. As of 2026-10-09.
Full statute text

Except as subsection (b) provides, a lessor of residential real property who has received a security deposit may not withhold any part of that deposit as reimbursement for property damage unless the lessor has, within 30 days of the date the lessee vacated the premises or within 30 days of the date the lessee's right of possession ends, whichever is later, furnished an itemized statement of the damage and the estimated or actual cost, attaching paid receipts or copies. If no such statement and receipts are furnished, the lessor shall return the security deposit in full within 45 days of the date the lessee vacated the premises.

A landlord may, any time after rent is due, demand payment and notify the tenant in writing that unless payment is made within a time mentioned in the notice, not less than 5 days after service, the lease will be terminated. If the tenant does not pay the rent due within the time stated in the notice, the landlord may consider the lease ended and commence an eviction action without further notice or demand.

Figures are from Illinois statutes, retrieved 2026-10-09. Primary sources: https://www.ilga.gov/Legislation/ILCS/Articles?ActID=2202&ChapterID=62&Print=True, https://www.ilga.gov/legislation/ILCS/details?MajorTopic=&Chapter=&ActName=Code%20of%20Civil%20Procedure.&ActID=2017&ChapterID=56&ChapAct=735%20ILCS%205/&SeqStart=67300000&SeqEnd=75500000.

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Questions

How soon must a landlord return a security deposit in Illinois?

Except as subsection (b) provides, a lessor of residential real property who has received a security deposit may not withhold any part of that deposit as reimbursement for property damage unless the lessor has, within 30 days of the date the lessee vacated the premises or within 30 days of the date the lessee's right of possession ends, whichever is later, furnished an itemized statement of the damage and the estimated or actual cost, attaching paid receipts or copies. If no such statement and receipts are furnished, the lessor shall return the security deposit in full within 45 days of the date the lessee vacated the premises. Source: 765 ILCS 710/1, https://www.ilga.gov/Legislation/ILCS/Articles?ActID=2202&ChapterID=62&Print=True, as of 2026-10-09.

How much notice ends a tenancy in Illinois?

Except as Section 9-207.5 provides, in a tenancy from week to week where the tenant holds over without special agreement, the landlord may terminate the tenancy by 7 days' written notice. Except as Section 9-207.5 provides, in a tenancy for any term less than one year, other than week to week, where the tenant holds over without special agreement, the landlord may terminate the tenancy by 30 days' written notice. Source: 735 ILCS 5/9-207, https://www.ilga.gov/legislation/ILCS/details?MajorTopic=&Chapter=&ActName=Code%20of%20Civil%20Procedure.&ActID=2017&ChapterID=56&ChapAct=735%20ILCS%205/&SeqStart=67300000&SeqEnd=75500000, as of 2026-10-09.

What eviction notice does Illinois require?

A landlord may, any time after rent is due, demand payment and notify the tenant in writing that unless payment is made within a time mentioned in the notice, not less than 5 days after service, the lease will be terminated. If the tenant does not pay the rent due within the time stated in the notice, the landlord may consider the lease ended and commence an eviction action without further notice or demand. Source: 735 ILCS 5/9-209, https://www.ilga.gov/legislation/ILCS/details?MajorTopic=&Chapter=&ActName=Code%20of%20Civil%20Procedure.&ActID=2017&ChapterID=56&ChapAct=735%20ILCS%205/&SeqStart=67300000&SeqEnd=75500000, as of 2026-10-09.

Estimates for planning; not tax/legal advice.