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Montana Mechanics Lien & Preliminary Notice Deadline Calculator

Calculate exact statutory cutoff dates for commercial subcontractors in Montana (MT) under Notice of Right to Claim Lien (MCA 71-3-531) and export calendar reminder alerts.

Montana (MT) Mechanics Lien Deadline Calculator

Statute Reference: Notice of Right to Claim Lien (MCA 71-3-531)

90-Day Filing Window
Montana Preliminary Notice Deadline
Enter First Work Date

Must be filed/served within 20 days of first furnishing labor or materials.

Montana Final Mechanics Lien Cutoff
Enter Last Work Date

Calculated 90 calendar days from your last day furnishing labor or materials.

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When is a preliminary notice due in Montana?

In Montana, specialty subcontractors must serve a Notice of Right to Claim Lien (MCA 71-3-531) within 20 days of first furnishing labor or materials. Must be filed/served within 20 days of first furnishing labor or materials.

Read Step-by-Step Montana Preliminary Notice Guide →

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

Under Notice of Right to Claim Lien (MCA 71-3-531), a Montana mechanics lien must generally be filed within 90 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.)