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AZ  ·  Mechanic's Lien Guide

Arizona Mechanic's Lien Warning Requirements for Contractors

Know your deadlines before you lose your rights. Arizona lien law in plain English — no legalese, no fluff.

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Disclaimer: This is general information, not legal advice. Verify current deadlines with your state's contractor board or a construction attorney before relying on any figure here.
Key Deadlines

Arizona Lien Law at a Glance

📅
Lien Filing Deadline
120 days from project completion or last furnishing of labor/materials
from completion of the project or last furnishing of labor/materials
⚠️
Preliminary Notice
Required
20 days from first furnishing labor or materials
📋
Notice to Owner
Required
Preliminary 20-Day Notice must be served on the owner, general contractor, and construction lender.
👷
Who Can File
Original contractors, subcontractors, material suppliers, laborers
⚠️ Preliminary Notice Required

Arizona's Preliminary Notice Requirement

All contractors and suppliers (except original contractor) must serve a Preliminary 20-Day Notice within 20 days of first furnishing. Late service limits lien rights to work done in the 20 days before notice was served.

Deadline: 20 days from first furnishing labor or materials
Commercial vs Residential

Does the Property Type Change Your Deadline?

Same notice and filing requirements apply to both residential and commercial projects. Residential properties may require additional owner disclosure notices.

Common Mistakes

What Contractors Get Wrong in Arizona

1
Serving the Preliminary 20-Day Notice late — coverage is limited to 20 days before the notice was served
2
Failing to serve all required parties (owner, GC, and lender)
3
Missing the 120-day filing deadline after last furnishing

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FAQ

Arizona Lien Law Questions

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This is general information, not legal advice. Verify current deadlines with your state's contractor board or a construction attorney. JobPapers sells document organization tools — we are not attorneys and do not provide legal services.