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Illinois Lien Deadlines for Material Suppliers

Illinois requires a "Notice of Unpaid Lien" to be provided to the owner before filing a lien if you don't have a direct contract.

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Illinois is High Risk for Suppliers

Illinois is High Risk for Suppliers Illinois has a 90-day Notice of Intent to Lien requirement from last furnishing. However, if you are working on a single-family owner-occupied project, you must provide notice within 60 days of starting work. Missing these notices puts your lien rights at risk.

Illinois Lien Deadlines

Deadline Type	Timing	Details
Preliminary/Notice	Notice of Intent to Lien — within 90 days of last furnishing	Required.
Special Notice	Within 60 days of starting work	For single-family owner-occupied projects.
Lien Filing	4 months after completion	Must file lien by 4 months after completion.
Enforcement	2 years after completion	Suit to enforce must be filed within 2 years after completion.
Statutes	770 ILCS 60/7; 770 ILCS 60/21

Common Supplier Mistakes in Illinois

Illinois Lien Deadlines

Deadline Type Timing Details Preliminary/Notice Notice of Intent to Lien — within 90 days of last furnishing Required. Special Notice Within 60 days of starting work For single-family owner-occupied projects. Lien Filing 4 months after completion Must file lien by 4 months after completion. Enforcement 2 years after completion Suit to enforce must be filed within 2 years after completion. Statutes 770 ILCS 60/7; 770 ILCS 60/21

Missing the 90-Day Notice

Failing to send the Notice of Intent to Lien within 90 days of your last furnishing is a critical error.

Missing the 60-Day Residential Notice

On single-family owner-occupied projects, you must send notice within 60 days of starting work, not just 90 days from last furnishing.

Late Lien Filing

The lien must be filed 4 months after completion. Missing this deadline invalidates the lien.

Missing Enforcement Deadline

Enforcement must occur within 2 years after completion.

When is the Notice of Intent to Lien due?

Within 90 days of last furnishing.

Is there a special rule for residential projects?

Yes, for single-family owner-occupied projects, notice is due within 60 days of starting work.

When must the lien be filed?

4 months after completion.

What is the enforcement period?

2 years after completion.

What statutes apply?

770 ILCS 60/7; 770 ILCS 60/21.

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Frequently Asked Questions