Illinois Mechanics Lien
Deadlines & Filing Rules

Every notice, deadline, and recording requirement for an Illinois construction lien, drawn from 770 ILCS 60/7, 60/9, 60/24 and the same rule engine that calculates deadlines for our filing customers.

Illinois lien rules at a glance

Preliminary notice
Required for subcontractors, sub-subcontractors, and suppliers
Lien filing deadline
within 4 months after completion of the project
Notarization
Required
The lien claim must be sworn to under oath
Where to record
County recorder where the property sits
E-recording
Available in participating counties
Enforcement deadline
Within 2 years after project completion

Who can file a mechanics lien in Illinois

Lien rights depend on where you sit in the contracting chain. Tenant-ordered improvements can support a lien in Illinois. Owner-occupied residential projects carry extra notice requirements in Illinois; missing them can cost the lien entirely.

Claimant Lien rights in Illinois
General contractor (direct contract with the owner) Yes
Subcontractor (hired by the general contractor) Yes
Sub-subcontractor (hired by a subcontractor) Yes
Material supplier to the owner Yes
Material supplier to the general contractor Yes
Material supplier to a subcontractor Yes

Illinois mechanics lien deadlines

Required for subcontractors, sub-subcontractors, and suppliers. Preliminary notices go to the property owner and the construction lender by any method that proves receipt.

Calculate your Illinois deadlines

Enter your role and project dates to turn the rules below into calendar dates. For other states, use the mechanics lien deadline calculator.

Project type

Choose your role to see which dates you need.

These dates come from the same rules our lien filing service uses. They are not moved for weekends or holidays. Deadlines turn on facts specific to your project. Confirm with counsel before relying on them.

Preliminary notice deadline

The notice that preserves lien rights before any payment problem exists.

Who Project type Deadline
All claimants All projects Within 90 days after last furnishing labor or materials

Mechanics lien filing deadline

The last day the lien can be recorded against the property.

Who Project type Deadline
All claimants All projects Within 4 months after completion of the project

Illinois does not require a notice of intent before recording a lien, but sending one is often what gets the invoice paid.

How to file an Illinois mechanics lien

The steps in order, each with the statute behind it. Some steps apply only to certain claimants, and each says so.

  1. 1

    Owner-occupied homes: subcontractors notify the occupant within 60 days

    A subcontractor working on an existing owner-occupied single-family residence must notify the occupant, in person or by certified mail with return receipt, within 60 days after first furnishing. The notice names the subcontractor, start date, work or materials, and the contractor, and must carry the statutory 'NOTICE TO OWNER' warning in at least 10-point bold type. A later notice still preserves the lien, but only to the extent the owner has not already paid the contractor.

    770 ILCS 60/21(c)

  2. 2

    Subcontractors and suppliers: serve the 90-day notice of claim

    Subcontractors and parties furnishing to the contractor must serve a written notice of their claim and the amount due on the owner of record (or the owner's agent, architect or superintendent) and on the lender, if known, within 90 days after completing their work or last delivery. Serve it by registered or certified mail with return receipt, by a nationally recognized delivery company with tracking, or by personal service; service is complete when sent. The notice is unnecessary if the contractor's sworn statement already told the owner the amount due.

    770 ILCS 60/24(a)

  3. 3

    Prepare the claim for lien and verify it by affidavit

    Prepare a claim for lien consisting of a brief statement of the claimant's contract, the balance due after all credits, and a sufficiently correct description of the land. It must be verified by the affidavit of the claimant or its agent or employee, which in practice means signing under oath before a notary.

    770 ILCS 60/7(a)

  4. 4

    Record it with the county recorder within 4 months

    Record the claim in the office of the recorder (in several counties now the county clerk's recording division) of the county where the improvement sits. To bind lenders, other creditors and buyers, record within 4 months after completion (or after extra work or final delivery). Against the owner alone, it may be recorded up to 2 years after completion. Most large counties accept e-recording through vendors such as CSC, ePN, Hopdox, Indecomm and Simplifile.

    770 ILCS 60/7(a), 60/28; 765 ILCS 33

  5. 5

    Sue to foreclose within 2 years after completion

    File suit in the circuit court of the county where the improvement is located within 2 years after completion of the contract or of extra work. Name the owner, the contractor, everyone in the contract chain, and other lien claimants as necessary parties. If the owner or any interested party serves a written demand, you must sue (or answer in a pending suit) within 30 days or the lien is forfeited.

    770 ILCS 60/9, 60/11, 60/34

  6. 6

    Release the lien when paid

    Once paid with the cost of filing, or after failing to sue within 30 days of a demand, the claimant must give a written release within 10 days after written demand. The release must carry the statutory bold notice to file it with the recorder. Failure costs $2,500 plus the owner's attorney fees.

    770 ILCS 60/35

What the claim for lien must contain

Illinois law requires the claim for lien (mechanics lien claim) to include the following (770 ILCS 60/7(a)).

  • Brief statement of the claimant's contract
  • Balance due after allowing all credits
  • Sufficiently correct description of the lot, lots or tracts of land to identify them
  • Verification by the affidavit of the claimant or its agent or employee

The act prescribes no claim form. Practitioners also include the owner, the hiring party, and completion or last-furnishing dates, which a foreclosure complaint must plead (770 ILCS 60/11(a)). The 90-day subcontractor notice has suggested wording in § 24(a); the owner-occupied notice wording is in § 21(c). Recorders apply the Predictable Fee Schedule format rules (55 ILCS 5/3-5018), so a document over 8.5x11 or with many PINs can cost more.

Download a blank Illinois lien claim form

The Claim for Lien our filing service prepares, with every field left blank. PDF, free, no sign-up. Fill in your own facts and check them against the list above before you sign.

Recording and enforcing an Illinois lien

Recording the lien

Record with the county recorder where the property sits. Electronic recording is available in participating counties. The lien must be notarized. The lien claim must be sworn to under oath.

After recording

A copy of the recorded lien must be served on the property owner within 10 days of recording. To keep the lien alive it must be enforced by lawsuit within 2 years after project completion.

Wrongful lien exposure

Illinois exposes claimants who file an exaggerated or baseless lien to damages. An overstated lien is defeated if the error or overcharge was made with intent to defraud (§ 7(a)). A court may make a claimant who sued without just cause pay the owner's reasonable attorney fees (§ 17(c)), and a claimant who fails to release a paid or lapsed lien within 10 days after written demand owes the owner $2,500 plus costs and attorney fees (§ 35(a)).

Practitioner notes for Illinois

In Illinois, subcontractors and suppliers to a contractor must serve a written notice of their claim on the owner (and the lender, if known) within 90 days after they finish their work or last delivery. Serve it by certified or registered mail with return receipt, a national delivery company with tracking, or in person (770 ILCS 60/24). Since January 1, 2025, tracked courier delivery counts. On work for an existing owner-occupied single-family home, a subcontractor must also notify the occupant within 60 days after first furnishing (770 ILCS 60/21(c)). The claim for lien is recorded with the county recorder where the property is located and must be verified by affidavit. To bind lenders, other creditors and buyers, record it within 4 months after completion. As against the owner alone, it can be recorded up to 2 years after completion (770 ILCS 60/7(a), 60/28). A contractor on an owner-occupied single-family home must give the owner written notice within 10 days after recording (770 ILCS 60/7(d)). A suit to foreclose must be filed within 2 years after completion (770 ILCS 60/9). If the owner serves a written demand, suit must be filed within 30 days or the lien is forfeited (770 ILCS 60/34). An overcharge made with intent to defraud defeats the lien. A claimant who fails to release a paid lien within 10 days of demand owes the owner $2,500 plus fees (770 ILCS 60/7, 60/35). How these deadlines apply to a subcontractor's own completion date can turn on the facts, so confirm with counsel.

These notes summarize the statute as we read it.

Statutory sources: 770 ILCS 60/7, 60/9, 60/24. Read the Illinois lien statute. Deadlines turn on facts specific to your project. Confirm with counsel before relying on them.

Where to record in Illinois

Illinois claims for lien are recorded with the county recorder; in Cook County that is the County Clerk's Recordings division. Each county charges one flat fee per document, from $49 to $99 in the counties below, and all ten accept e-recording.

The 10 most populous Illinois counties, the office that takes liens in each, whether it accepts e-recording, and the fee it publishes. Liens on property in any other county go to that county's office.

County Office E-recording Fee
Cook Cook County Clerk's Office, Recordings
Cook County Clerk's Office, Recordings, 118 N. Clark Street, Chicago, IL 60602
Yes
Through Simplifile, CSC, eRecording Partners Network (ePN), Hopdox
Mechanic's Lien, Satisfaction and Release: $64 (effective April 1, 2024). Recording by mail with return adds $5 per document. Fee schedule
DuPage DuPage County Recorder
DuPage County Recorder, P.O. Box 936, Wheaton, IL 60187
Yes
Through Corporation Service Company (CSC), eRecording Partners Network (ePN), Hopdox, Indecomm Global Services, Simplifile
Miscellaneous (Document Class 7): $86.00, including recording, document storage ($10), GIS ($21), real property ($1) and RHSP ($18) fees. Nonstandard documents $112. Fee schedule
Lake Lake County Clerk's Office, Recording Division
Lake County Clerk's Office, Recording Division, 18 N. County St., 6th Floor, Waukegan, IL 60085-4358
Yes
Through CSC, eRecording Partners Network (ePN), Hopdox, Simplifile
Standard document: $70.00; non-standard $82.00 (schedule effective July 1, 2023). Fee schedule
Will Will County Recorder of Deeds
Will County Recorder of Deeds, 158 N. Scott Street, Joliet, IL 60432-4143
Yes
Through Hopdox, Indecomm, CSC, eRecording Partners Network (ePN), Simplifile
Most standard real-estate-related documents signed after 7/31/05: $90.00; non-real-estate or older documents $71.00. Non-standard: $118.00 / $99.00. Page notes an updated fee implementation effective October 1, 2025. Fee schedule
Kane Kane County Recorder
Kane County Recorder, 719 S. Batavia Ave., Building C, Geneva, IL 60134
Yes
Through Corporation Service Company (CSC), Simplifile, Hopdox
Standard document: $99, effective October 1, 2024 after a GIS fee increase. Fee schedule
McHenry McHenry County Recorder
McHenry County Recorder, Government Center, 2200 N. Seminary Ave., Woodstock, IL 60098
Yes
Through Corporation Service Company (CSC), eRecording Partners Network (ePN), Hopdox, Indecomm Global Services, Simplifile
Fee not published online; ask the office.
Winnebago Winnebago County Recorder's Office
Winnebago County Recorder, County Administration Building, 404 Elm Street, Room 405, Rockford, IL 61101
Yes
Through eRecording Partners Network (ePN), CSC, Indecomm Global Services, Simplifile, Hopdox
Standard documents: $54.00; non-standard $66.00 (effective January 1, 2025). Fee schedule
Madison Madison County Recorder's Office
Madison County Recorder's Office, Madison County Administration Building, 157 N. Main St., Suite 211, Edwardsville, IL 62025
Yes
Through eRecording Partners Network (ePN), CSC, Simplifile, Indecomm Global, Hopdox
Predictable fee schedule effective April 1, 2025: deed, lease, mortgage, easement, miscellaneous and other documents $70.00; +$12 if a document exceeds 8.5 x 11. Fee schedule
St. Clair St. Clair County Recorder of Deeds
Recorder of Deeds, PO Box 543, Belleville, IL 62222 (overnight: #10 Public Square, 5th Floor, Belleville, IL 62220)
Yes
Through Simplifile, CSC, Indecomm Global Services, eRecording Partners Network (ePN), Hopdox
Misc recordings: $49.00 with RHSP surcharge ($30.00 without). Fee schedule
Champaign Champaign County Clerk and Recorder (Recorder of Deeds)
Champaign County Clerk & Recorder, 1776 E. Washington St., Urbana, IL 61802
Yes
Through eRecording Partners Network (ePN), Indecomm Global Services, Simplifile, CSC eRecording Solutions, Hopdox
As of April 1, 2025: standard real-estate-related documents $70.00; non-standard $82.00; no additional page charge. Fee schedule

Collected from each office's website on October 2, 2026. Fees and filing methods change. Confirm them with the office before you record.

Recent changes to Illinois lien law

Changes since 2022 that affect lien deadlines, notices, forms or filing.

P.A. 103-827 (HB 4660): tracked courier service; owner-occupied notice moved

Effective January 1, 2025

The subcontractor's 90-day notice may now be sent by a nationally recognized delivery company with tracking, in addition to registered or certified mail or personal service. The 60-day notice to the occupant of an existing owner-occupied single-family home was moved from Section 5 into Section 21(c), with the same content and late-notice rule.

P.A. 103-827; 770 ILCS 60/5, 60/21, 60/24

Cook County: 'standard/non-standard' pricing dropped under state law

Effective April 1, 2024

The Cook County Clerk stopped pricing documents as standard or non-standard as of April 1, 2024, citing state law; liens and plats kept their prior prices, and the mechanic's lien fee is $64. Which public act made the change was not identified.

Cook County Clerk recording fee schedule, effective 04/01/24

Sources for this page (21)

File your Illinois mechanics lien

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Illinois mechanics lien FAQ

How long do I have to file a mechanics lien in Illinois?
The Illinois lien must be recorded within 4 months after completion of the project. The same deadline applies to every claimant.
Do I need to send a preliminary notice in Illinois?
Required for subcontractors, sub-subcontractors, and suppliers. Serve it on the property owner and the construction lender by any method that proves receipt. Missing it usually forfeits lien rights for the unnoticed work.
Does an Illinois mechanics lien need to be notarized?
Yes. The lien must be notarized before it is recorded. The lien claim must be sworn to under oath.
Where is a mechanics lien filed in Illinois?
With the county recorder where the property sits. Electronic recording is available in participating counties, which typically cuts the turnaround to a day or two.
How long is an Illinois mechanics lien valid?
An Illinois lien must be enforced through a foreclosure lawsuit within 2 years after project completion. If no suit is filed by then, the lien expires and can no longer be used to force payment.
Can a subcontractor file a mechanics lien in Illinois?
Yes. Subcontractors have lien rights in Illinois, and so do sub-subcontractors. They must follow the preliminary notice rules to keep those rights.
Can I file a mechanics lien on a public project in Illinois?
Not against public property. Instead, claim against the contractor's payment bond under the Public Construction Bond Act. File a verified notice of claim with the public body within 180 days after your last work or delivery, and send a copy to the contractor within 10 days after filing, by personal service or certified or restricted-delivery mail. Source: 30 ILCS 550/2.
What does it cost to record a claim for lien in Illinois?
Each county sets a flat predictable fee. Published examples: Cook charges $64 for a mechanic's lien, Winnebago $54, St. Clair $49, Lake $70, Madison and Champaign $70, DuPage $86, Will $90 and Kane $99 for standard documents. Non-standard or oversized documents cost more, and e-recording vendors add a service fee. Source: 55 ILCS 5/3-5018; county fee schedules.
What if the owner is a tenant in Illinois?
A contractor's lien attaches to the owner's interest when the work was contracted by the owner or by someone the owner authorized or knowingly permitted to contract, which can include a tenant. The lien extends to whatever estate the owner holds, including a leasehold. Whether a landlord 'knowingly permitted' a tenant's work depends on the facts and the lease. Source: 770 ILCS 60/1(a).
Can the owner force me to sue on my Illinois lien?
Yes. The owner, another lienor or anyone interested in the property can serve a written demand requiring suit. The demand must warn, in at least 10-point bold type, that failing to respond within 30 days forfeits the lien. You then have 30 days to file suit or answer in a pending suit, or the lien is forfeited. Source: 770 ILCS 60/34.
How do I release an Illinois lien after payment?
When the claim and filing costs are paid, give a written release within 10 days after the owner's written demand. The release must say, in bold letters at least 1/4 inch high, that it should be filed with the recorder where the claim was filed. Missing the 10 days makes you liable for $2,500 plus the owner's costs and attorney fees. Source: 770 ILCS 60/35.
What happens if my lien amount is wrong?
An error or overcharge does not defeat the lien to its proper amount unless it was made with intent to defraud. A lien claimed with intent to defraud can be defeated entirely. Against the owner, the claim may be amended any time before final judgment. A supplier's lien is not defeated just because delivered material was not used, if it was delivered for the job. Source: 770 ILCS 60/7(a).