Rent Collection

Can landlords increase rent during a lease term?

Illinois rental guidance and tenant-landlord operational information.
Published May 3, 2026 State-specific rental guidance Update This Question
Reviewed by Tenants & Landlords Editorial Team

This rental guidance was reviewed by the Tenants & Landlords Intelligence Team, specializing in lease agreements, notices, rent disputes, deposits, evictions, and tenant-landlord operational procedures.

Asked 30 days ago · Illinois

Can Landlords Increase Rent During a Lease Term in Illinois?

In Illinois, landlords and tenants enter into rental agreements that outline the terms of occupancy, including the rent amount. A common question among landlords is whether rent can be increased during the lease term. Understanding Illinois law on this matter is crucial to managing rental properties effectively and maintaining positive landlord-tenant relationships.

Lease Terms and Rent Increases

Fixed-Term Leases:
Most leases in Illinois are for a fixed term, often twelve months, which sets a duration during which the terms, including rent, are agreed upon and binding for both parties.

  • During this fixed lease term, landlords cannot unilaterally raise the rent unless the lease agreement specifically includes a clause allowing for rent increases.
  • If the lease is silent on rent adjustments, the rent amount stipulated at the beginning of the term remains in effect until the lease expires.
Month-to-Month Leases: In the absence of a fixed-term lease, a rental agreement often operates on a month-to-month basis.
  • Illinois landlords are allowed to increase rent on month-to-month tenancies by providing proper written notice.
  • The standard minimum notice is 30 days prior to the increase for monthly tenancies.

Legal Guidelines for Rent Increases in Illinois

While Illinois law does not impose statewide rent control that limits the amount a landlord can raise rent, certain conditions and procedures must be met to validly increase rent:

  • Notice Requirements:
- For monthly tenancies, a landlord must provide at least 30 days’ written notice before the rent increase takes effect. - For longer notice periods or specific intervals, refer to the lease agreement or local municipal regulations.
  • Lease Agreement Clauses:
If the lease contains a rent increase clause specifying how and when rent can be adjusted—such as annual increases tied to the Consumer Price Index or a set percentage—the landlord must adhere to those terms.
  • No Rent Increases During the Lease Term Without Agreement:
For fixed-term leases without a rent-increase clause, rent stays fixed for the duration of the lease. Attempting to raise rent mid-term without tenant agreement could be considered a breach of contract.

Steps for Increasing Rent Appropriately

To increase rent successfully and lawfully in Illinois, landlords should:

  1. Review the Lease Agreement:
Confirm whether the lease allows rent increases during the term or if the rental period is month-to-month.
  1. Provide Written Notice:
Draft a clear, written rent increase notice detailing the new rent amount and the date the increase takes effect, ensuring it meets Illinois’ timing requirements.
  1. Use Proper Delivery Methods:
Deliver the notice personally, by mail, or via a method stipulated in the lease for communication.
  1. Communicate with Tenants:
Although not legally required, open communication can ease transitions and support ongoing tenant retention.
  1. Document the Process:
Keep copies of notifications and correspondence related to the rent increase for your records.

Local Ordinances and Additional Considerations

While Illinois does not have statewide rent control, some cities or municipalities may have local ordinances affecting rent increases or tenant protections.

  • Chicago, for example, has ordinances pertaining to rental housing registration and tenant rights, but it does not limit rent increases explicitly.
  • Landlords should verify whether local laws impose any additional obligations or limits.

Summary

  • In Illinois, landlords cannot increase rent during a fixed-term lease unless the lease contains a clause permitting it or the tenant agrees to the change.
  • For month-to-month leases, landlords must provide at least 30 days’ written notice before raising rent.
  • No statewide rent control means landlords can set rent increases freely if they comply with notice and lease terms.
  • Always review your lease agreements and local laws before implementing a rent increase.
By following Illinois-specific rules on rent increases, landlords can ensure compliance, avoid disputes, and maintain smooth operations within their rental properties.

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