Minnesota • Mechanics Lien Deadlines
Minnesota Mechanics Lien Deadline Calculator
Learn the exact preliminary notice and lien filing deadlines in Minnesota. Then jump into the LienDeadline calculator to see your real project dates in 0.3 seconds.
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Minnesota Lien Deadline Overview
Preliminary Notice Deadline
Subcontractors must serve on owner within 45 days of first furnishing
Mechanics Lien Filing Deadline
Must be filed within 120 days after last furnishing
Typical Projects
Building material suppliers, lumber yards, concrete and rebar suppliers working on private construction projects in Minnesota.
This page is a simplified summary for material suppliers and does not replace advice from a construction attorney.
How lien deadlines work in Minnesota
In Minnesota, material suppliers must follow specific deadlines to protect their lien rights. The preliminary notice deadline is subcontractors must serve on owner within 45 days of first furnishing. The mechanics lien filing deadline is must be filed within 120 days after last furnishing. Missing either deadline results in complete loss of lien rights for that project.
Preliminary notice rules
- Late preliminary notice limits lien to unpaid balance at time of notice
- Subcontractors must serve on owner within 45 days of first furnishing
- Preliminary Notice required for material suppliers
Mechanics lien filing rules
- Late preliminary notice limits lien to unpaid balance at time of notice
- Enforcement suit must be commenced within 1 year
- Serve lien on owner after filing
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Frequently asked questions
What is the mechanics lien deadline in Minnesota?
Must be filed within 120 days after last furnishing
Does Minnesota require a preliminary notice?
Subcontractors must serve on owner within 45 days of first furnishing
What happens if I miss the deadline?
You lose your legal right to file a lien for that project, even if you're still owed money. That's why many suppliers use automated deadline tools instead of spreadsheets.