Washington • Mechanics Lien Deadlines
Washington Mechanics Lien Deadline Calculator
Learn the exact preliminary notice and lien filing deadlines in Washington. Then jump into the LienDeadline calculator to see your real project dates in 0.3 seconds.
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Washington Lien Deadline Overview
Preliminary Notice Deadline
Within 60 days of first furnishing (or before starting work)
Mechanics Lien Filing Deadline
90 days after last furnishing labor or materials
Typical Projects
Building material suppliers, lumber yards, concrete and rebar suppliers working on private construction projects in Washington.
This page is a simplified summary for material suppliers and does not replace advice from a construction attorney.
How lien deadlines work in Washington
In Washington, material suppliers must follow specific deadlines to protect their lien rights. The preliminary notice deadline is within 60 days of first furnishing (or before starting work). The mechanics lien filing deadline is 90 days after last furnishing labor or materials. Missing either deadline results in complete loss of lien rights for that project.
Preliminary notice rules
- Notice to Owner must be served within 60 days of first work
- Within 60 days of first furnishing (or before starting work)
- Notice to Owner required for material suppliers
Mechanics lien filing rules
- Lien must be filed within 90 days of last furnishing
- 90 days after last furnishing labor or materials
- Claim of Lien must be filed within deadline
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Frequently asked questions
What is the mechanics lien deadline in Washington?
90 days after last furnishing labor or materials
Does Washington require a preliminary notice?
Within 60 days of first furnishing (or before starting work)
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.