50 State Resource
State Lien Law Learning Center
Comprehensive guides to mechanics lien and preliminary notice requirements for every state. Stay compliant and protect your lien rights.
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Illinois
770 ILCS 60/1 et seq.
Notice Required
Notice Deadline
60 Days
Lien Filing Deadline
4 months after completion
Public Bond Threshold
$150,000 for public projects (recently increased)
Overview
Illinois mechanics lien law provides strong protections for contractors and suppliers. Notice requirements vary by project type and claimant tier.
Who Must Send Notice
- Subcontractors
- Material suppliers
Who Receives Notice
- Property owner
Key Requirements
- 160-day notice deadline for subcontractors
- 24-month lien filing deadline from completion
- 3Owner may request sworn statement from contractor
- 4Residential projects have additional consumer protections
Important Notice
Illinois recently increased its public bond threshold from $50,000 to $150,000.
Timeline Summary
1
First Furnishing
Day 0
2
Notice Deadline
Day 60
3
Lien Filing
4 months after completion
4
Enforcement
2 years from completion to foreclose