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Rent Increase Notice Laws in Illinois

We found no Illinois statute that sets a specific notice period for rent increases; a landlord must give 30 days' written notice to end a month-to-month tenancy, and local governments cannot adopt rent control.

Last checked . General information, not legal advice.

Illinois at a glance

Notice for month-to-month increase
No specific statute; 30 days to end tenancy
State law sets no separate rent increase notice period. A month-to-month tenancy can be ended with 30 days' written notice.
Statewide rent increase cap
No statewide cap
Units of local government may not control the amount of rent charged for private residential property.

Sources

Last checked

The rules in Illinois

How much notice must a landlord give before raising rent on a month-to-month tenancy in Illinois?

Notice for month-to-month increase in Illinois: No specific statute; 30 days to end tenancy. State law sets no separate rent increase notice period. A month-to-month tenancy can be ended with 30 days' written notice.

Does Illinois limit how much a landlord can raise the rent?

No statewide cap. Statewide rent increase cap in Illinois: no statewide cap. Units of local government may not control the amount of rent charged for private residential property.

Where do the Illinois rent increase notice laws come from?

The rules above come from 735 ILCS 5/9-207 and 50 ILCS 825/5. Each source is linked on this page. We last checked them in October 2026.

Good to know

735 ILCS 5/9-207(b) lets a landlord end a tenancy of less than one year, other than week to week, with 30 days' written notice.

Local rules can add notice requirements in some cities.

What this means in practice

Put the rent increase in writing, state the new amount and the date it takes effect, and keep a copy along with proof of how and when it was delivered. Count the notice period from the date the tenant actually receives the notice, and check whether your state adds extra days for mailed notices.

Check local law as well as state law. Some cities and counties have rent stabilization ordinances, registration rules, or longer notice periods, and subsidized or rent-regulated units often follow separate federal or program rules.

A rent increase cannot be used to retaliate against a tenant for making a repair request or complaint, or to discriminate against a protected group. If the timing of an increase could look retaliatory, document the business reason for it.

General information, not legal advice. Laws change, and cities can add their own rules, so check the current statute before you rely on it.