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Illinois Mechanics Lien & Preliminary Notice Deadline Calculator

Calculate exact statutory cutoff dates for commercial subcontractors in Illinois (IL) under 90-Day Subcontractor Notice (770 ILCS 60/24) and export calendar reminder alerts.

Illinois (IL) Mechanics Lien Deadline Calculator

Statute Reference: 90-Day Subcontractor Notice (770 ILCS 60/24)

120-Day Filing Window
Illinois Preliminary Notice Deadline
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Notice of claim must be served on owner and lender within 90 days of completion.

Illinois Final Mechanics Lien Cutoff
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Calculated 120 calendar days from your last day furnishing labor or materials.

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When is a preliminary notice due in Illinois?

In Illinois, specialty subcontractors must serve a 90-Day Subcontractor Notice (770 ILCS 60/24) within 90 days of last furnishing labor or materials. Notice of claim must be served on owner and lender within 90 days of completion.

Read Step-by-Step Illinois Preliminary Notice Guide →

How many days do you have to file a mechanics lien in Illinois?

Under 90-Day Subcontractor Notice (770 ILCS 60/24), a Illinois mechanics lien must generally be filed within 120 days from the last day labor or materials were furnished to the project.

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Mechanics Lien Deadlines by State (All 50 States + D.C.)