Maryland • Mechanics Lien Deadlines
Maryland Mechanics Lien Deadline Calculator
Learn the exact preliminary notice and lien filing deadlines in Maryland. Then jump into the LienDeadline calculator to see your real project dates in 0.3 seconds.
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Maryland Lien Deadline Overview
Preliminary Notice Deadline
Subcontractors must serve notice within 120 days after last furnishing
Mechanics Lien Filing Deadline
Must be filed within 180 days (6 months) after last work
Typical Projects
Building material suppliers, lumber yards, concrete and rebar suppliers working on private construction projects in Maryland.
This page is a simplified summary for material suppliers and does not replace advice from a construction attorney.
How lien deadlines work in Maryland
In Maryland, material suppliers must follow specific deadlines to protect their lien rights. The preliminary notice deadline is subcontractors must serve notice within 120 days after last furnishing. The mechanics lien filing deadline is must be filed within 180 days (6 months) after last work. Missing either deadline results in complete loss of lien rights for that project.
Preliminary notice rules
- Subcontractors must serve notice within 120 days after last furnishing
- Notice of Intent to Claim Lien required for material suppliers
- Notice of Intent to Claim Lien required for material suppliers
Mechanics lien filing rules
- Work must improve property value by 15% or more to qualify for lien
- Enforcement suit must be commenced within 1 year of filing
- Must be filed within 180 days (6 months) after last work
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Frequently asked questions
What is the mechanics lien deadline in Maryland?
Must be filed within 180 days (6 months) after last work
Does Maryland require a preliminary notice?
Subcontractors must serve notice within 120 days after last 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.