# Illinois — Mechanics lien filing deadlines, preliminary notice requirements, and enforcement windows by US state and party role

For Illinois, preliminary notice required is conditional — not required for GC; subs/suppliers must serve 90-day Section 24 notice on owner and lender within 90 days of last furnishing; notice name is Section 24 Notice; notice deadline — gc (days) is not required; notice deadline — sub/supplier (days) is 90; lien recording deadline — gc (days) is 4 months, recorded from its source on 2026-08-14.

- **State:** Illinois _(verified: appears in the quote below)_
- **Preliminary notice required:** conditional — not required for GC; subs/suppliers must serve 90-day Section 24 notice on owner and lender within 90 days of last furnishing _(our reading, not quoted from the source)_
- **Notice name:** Section 24 Notice _(verified: appears in the quote below)_
- **Notice deadline — GC (days):** not required _(verified: appears in the quote below)_
- **Notice deadline — sub/supplier (days):** 90 _(verified: appears in the quote below)_
- **Lien recording deadline — GC (days):** 4 months _(verified: appears in the quote below)_
- **Lien recording deadline — sub/supplier (days):** 4 months _(verified: appears in the quote below)_
- **Enforcement deadline (days):** 2 years _(verified: appears in the quote below)_
- **Lien scope:** unpaid balance _(our reading, not quoted from the source)_
- **Late notice consequence:** partial _(our reading, not quoted from the source)_
- **Statute:** 770 ILCS 60 (Illinois Mechanics Lien Act)

## What the source says

> Suit to foreclose the mechanic lien must be filed within 2 years from the last date of furnishing labor or materials. 770 ILCS 60/9. An owner can shorten this to 30 days by serving a Section 34 demand. 770 ILCS 60/34. Do suppliers have mechanic lien rights in Illinois? Yes. Material suppliers who furnish materials for permanent improvement to Illinois real property have lien rights under the Illinois Mechanics Lien Act. Suppliers who did not contract directly with the owner must serve the 90-day Section 24 notice on the owner and lender, and record within 4 months of last delivery. 770 ILCS 60/24. Does Illinois require notice before filing a mechanic lien? For subcontractors, suppliers, and laborers — usually yes. The 90-day Section 24 notice must be served on the owner and lender before or in connection with recording the lien, and a separate 60-day notice applies to subcontractors on existing owner-occupied single-family residences. Direct contractors are generally not required to serve a pre-lien notice on commercial or non-owner-occupied projects.

## Source

- https://mechanicslien.com/illinois

Last verified: 2026-08-14. Review by: 2027-08-14.
Part of [Mechanics lien filing deadlines, preliminary notice requirements, and enforcement windows by US state and party role](https://referencesource.org/mechanics-lien-deadlines-by-state/).