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Rent Late Fee Laws in Illinois

Illinois has no statewide cap on residential rent late fees or required grace period; Chicago and Cook County set their own limits.

Last checked . General information, not legal advice.

Illinois at a glance

Late fee cap
No statewide cap
HB 3564, effective January 1, 2027, adds rental fee rules but no statewide late fee formula or grace period.
Cap (% of rent)
No statutory cap
Grace period
None required by statute

Sources

Last checked

The rules in Illinois

How much can a landlord charge as a late fee in Illinois?

Late fee cap in Illinois: No statewide cap. HB 3564, effective January 1, 2027, adds rental fee rules but no statewide late fee formula or grace period.

What percentage of the rent is the late fee cap in Illinois?

Cap (% of rent) in Illinois: No statutory cap.

How many days does a tenant have before a late fee can be charged in Illinois?

Grace period in Illinois: None required by statute.

Where do the Illinois rent late fee laws come from?

The rules above come from Illinois Rental Fee Changes in 2027 (Gould + Ratner). Each source is linked on this page. We last checked them in October 2026.

Good to know

HB 3564 adds a rental fee section to the Illinois Landlord and Tenant Act (765 ILCS 705/35) taking effect January 1, 2027, but the enacted version does not set a late fee formula or a five-day grace period.

What this means in practice

In many states, a landlord can charge a late fee only if the lease provides for it. Putting the amount, the due date, and any grace period in the lease in plain numbers helps both sides avoid disputes.

When a state counts a grace period, the details matter: whether weekends and holidays count, and whether the clock starts on the due date or the day after. Read the statute text linked on each state page rather than relying on a rounded summary.

Late fees are separate from unpaid rent. Keeping rent receipts and a record of the date each payment arrived makes it easier to check whether a fee was charged correctly and to resolve disagreements before they reach court.

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