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Illinois rental documents

State-specific leases, notices, checklists, and addenda for a Illinois rental. Legal notes last reviewed 2026-08-15. LeaseGen.io is not a law firm.

Deposit cap
No statutory cap
Deposit return
45 days
Pay-or-quit
5 days
Pet deposit
No statewide cap

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Start a tenancy

Screen an applicant, write the lease, and document the move-in.

During the tenancy

Receipts, entry, rent changes, renewals, and papers that amend who lives there.

End a tenancy

Give notice, inspect at surrender, and account for the deposit. Use an eviction notice only for unpaid rent or a lease violation.

Illinois rental law at a glance

Short summaries of the rules that shape Illinois leases, notices, and deposit papers on LeaseGen.io. Last reviewed 2026-08-15. Not legal advice.

Security deposits

Cap
No statutory cap
Return clock
45 days after the tenancy ends

Illinois does not set a statewide maximum security deposit. Unused deposit plus an itemized list is generally due within 45 days (765 ILCS 710/1). Landlords with 25 or more units generally owe interest (765 ILCS 715). Chicago’s RLTO adds a 1.5× cap and a different clock.

765 ILCS 710/1

Illinois deposit receipt · Deposit itemization

Notices and entry

A month-to-month tenancy generally takes 30 days’ written notice (735 ILCS 5/9-207).

Illinois does not prescribe a statewide 24-hour entry statute. Put a reasonable-notice entry clause in the lease. Chicago’s RLTO is stricter.

A Illinois rent increase should be in writing. Many landlords use at least the same notice they would use to end a month-to-month tenancy. A month-to-month tenancy generally takes 30 days’ written notice (735 ILCS 5/9-207). The lease may require more. Local rent-control rules can cap the amount even when the notice period is met.

Notice to vacate · Entry notice · Rent increase

Eviction notices

Illinois’ 5-day rent notice is the usual statewide first step. Chicago and other home-rule cities add extra notices and just-cause rules.

  • Nonpayment generally takes a 5-day written notice (735 ILCS 5/9-209).
  • Pay-or-quit deadline: 5 days
  • Serve as the Forcible Entry and Detainer article allows. Chicago has its own service and notice forms.

Chicago’s RLTO and some other cities require a listed reason to terminate many tenancies.

Illinois eviction notice generator

Required disclosures (0)

Illinois residential leases commonly need these statewide disclosures. The lease generator adds them when your answers trigger them.

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    Local rent rules

    These Illinois cities often have rent-control, just-cause, or relocation rules on top of state law. Confirm the ordinance before you raise rent or decline to renew.

    chicago

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