Illinois Mechanics Lien — Deadlines, Laws, and Filing Guide
✓ Verified against Illinois statutes · Reviewed August 2026 · By Michael Evan — Founder · 50 states · 799 rules
Illinois mechanics lien deadlines at a glance
Preliminary Notice
90 days (sub) — 90-day sub notice
Mechanics Lien
4 months — From last date of furnishing
Enforcement
2 years — From filing
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Illinois Mechanics Lien Filing Deadline
In Illinois, the deadline to file a mechanics lien is 4 months from the last date of furnishing labor or materials. This applies to contractors, subcontractors, and material suppliers. This is a strict, hard cutoff under the Illinois Mechanics Lien Act.
No Preliminary Notice Required in Illinois — but Subs Must Serve the 90-Day Notice
Unlike California, Texas, and Florida, Illinois does not require a preliminary notice at the start of the job. But a subcontractor, sub-subcontractor, or material supplier that did not contract directly with the owner must serve the 90-day Subcontractor and Material Notice on the owner under 770 ILCS 60/24 within 90 days of its last work or last furnishing. That 90-day notice is a separate, earlier deadline from the 4-month recording deadline under 770 ILCS 60/7, and missing it defeats the sub-tier lien even when the Claim for Lien is recorded on time. A general contractor in a direct contract with the owner does not serve the 90-day notice.
Where to File an Illinois Mechanics Lien
The verified Claim for Lien is recorded with the recorder of deeds in the county where the property is located — the county land-records office, as in most states, not the circuit court clerk. In Cook County (Chicago), the separate Recorder of Deeds was consolidated into the Cook County Clerk's Office effective December 7, 2020, so a Chicago Claim for Lien is recorded with the Cook County Clerk's Recordings Division at 118 N. Clark Street and through the Clerk's e-recording partners. Filing the suit to foreclose the lien is a separate step, brought in the circuit court within 2 years of completion under 770 ILCS 60/9.
Illinois Lien Enforcement Deadline
After filing a mechanics lien in Illinois, the lienor must enforce the lien by commencing a lawsuit within 2 years of the date the lien was filed. Illinois gives lienors 2 years to enforce — much longer than California's 90 days.
Frequently Asked Questions
What is the deadline to file a mechanics lien in Illinois?
In Illinois, the deadline to file a mechanics lien is 4 months from the last date of furnishing labor or materials for most claimants. This is a hard cutoff — missing it permanently eliminates your lien rights.
Do I need to send a preliminary notice before filing a lien in Illinois?
Illinois does not require a preliminary notice at the start of the job. However, a subcontractor, sub-subcontractor, or material supplier not in a direct contract with the owner must serve the 90-day Subcontractor and Material Notice on the owner under 770 ILCS 60/24 within 90 days of its last work or last furnishing, or the sub-tier lien is lost — a separate, earlier deadline from the 4-month recording deadline. A general contractor in privity with the owner does not serve it.
Where do I file a mechanics lien in Illinois?
Illinois mechanics liens are recorded with the recorder of deeds in the county where the property is located — the county land-records office, as in most states, not the circuit court clerk. In Cook County (Chicago), that office is the Cook County Clerk's Recordings Division, which absorbed the separate Recorder of Deeds effective December 7, 2020. The suit to foreclose the lien is a separate step, filed in the circuit court within 2 years of completion under 770 ILCS 60/9.