What Is a Pre-Lien in Arizona? Contractor Guide 2025
What Is a Pre-Lien and Why Contractors in Arizona Should Always File One

In the construction industry, one of the biggest risks contractors face is not getting paid. Payment disputes can drag on, and in the worst cases, leave contractors, subcontractors, and suppliers with unpaid invoices. A pre-lien notice (in Arizona: a Preliminary 20-Day Notice) is one of the most powerful tools you have to protect your rights. If you do business in Arizona, this isn’t optional—it’s part of what preserves your ability to enforce payment via electronically statutorily defined lien rights.
What Exactly Is a Pre-Lien / Preliminary 20-Day Notice
A pre-lien notice (in Arizona commonly called a “Preliminary 20-Day Notice”) is a formal notice you send to certain parties involved in a construction project (property owner, general contractor, lender, etc.) at or near the start of supplying labor, materials, or services. It does not itself place a lien on the property. Rather, it preserves your right to file a mechanic’s lien later, should payment become an issue.
Arizona statute defines “preliminary twenty-day notice” in A.R.S. § 33-992.01. Arizona Legislature+1
If you miss the deadline, Arizona law limits how much you can claim via lien to the period after the notice (and, at best, 20 days before it). Handle+2lang.law+2
Legal Basis in Arizona
Here are key legal references you should link to or mention:
Arizona Revised Statutes § 33-992.01 — Preliminary Twenty Day Notice: definitions; content; election; waiver; service. This describes who must send, when, to whom, and what must be in the Preliminary Notice. Arizona Legislature+1
A.R.S. § 33-984 to 33-996 (Title 33 Chapter 16) for liens generally, including how lien rights are affected by whether a proper pre-lien notice was given. Arizona Legislature+2Arizona Legislature+2
A.R.S. § 34-223 — for public works/bond claims: even when you can’t lien the property (public projects often prohibit liens on the real property), sending notice ensures you preserve a claim against the payment bond. Handle
Why Contractors Should Always File a Pre-Lien
These are the detailed reasons, tied to legal or practical outcomes:
Preserves Your Legal Standing to File a Mechanic’s Lien
If you don't serve the preliminary notice as required by A.R.S. § 33-992.01, you may lose lien rights altogether. lang.law+1Defines the Time Period for Which You Can Legally Claim
If you send the notice late, your lien rights only reach back 20 days before the date you sent the notice, plus rights forward from that date. Any labor or materials furnished before those periods may not be lien able. lang.law+2Handle+2Improved Communication and Transparency
The parties above you in the chain (owners, GCs, lenders) knowing who’s involved and what you're expecting can help avoid surprises. It often motivates more timely payment when they know someone down the line has preserved legal rights. Several industry guides and lien law overviews stress this benefit. bcm.nacm.org+2DarLiens, Inc.+2Compliance Demonstrates Professionalism and Risk Mitigation
Doing this correctly (not just filling something out, but serving it properly, proof of mailing, etc.) shows you know the rules and aren’t leaving money or legal rights on the table. Posts or legal commentary (for example in “How to File an Arizona Preliminary Notice” from Handle) emphasize the required form, recipients, and proof of service. Handle
Consequences / Risks of Not Filing Properly
If you skip or screw up the preliminary notice, here’s what you risk:
Forfeited lien rights: You may have no recourse of lien; you're reduced to contract enforcement (often costlier, slower). lang.law+2Handle+2
Reduced claim period / amount: Missing deadlines truncates what you can claim. You may lose the ability to make claims for labor or material provided before the notice period. lang.law+2Prelim Systems+2
Diminished leverage: Without lien rights, many clients or general contractors deprioritize you. They know it’s harder to force payment.
Legal challenges: If the property owner or GC disputes your lien, deficiencies in the notice (wrong address, missing content, late service, improper mailing) are common points of attack.
Detailed How-To: Filing a Pre-Lien Correctly in Arizona
Here are the detailed steps, drawn from statute and practitioner resources, so you can ensure you do it right:
Step What to Do Why It Matters & Statute Reference
1. Mark the first day: The clock starts when you first furnish labor, materials, tools, or services. You must act within 20 days of that. Arizona Legislature+2Handle+22. Identify Required Recipients: The owner (or reputed owner), original contractor (or reputed contractor), the construction lender or reputed lender, and the party with whom you contracted. Subcontractors must send notice up the chain. Handle+13. Use the Correct Form & Include All Required Information: The notice must include your name & address, description of what you are providing or have provided, property/job location, estimate of total price, name of the party who contracted with you, etc. Statute dictates content. Arizona Legislature+14. Send Notice By Permitted Method & Keep Proof: Permitted methods include first-class mail with certificate of mailing, registered or certified mail, etc. Keep proof of sending (mail receipts, certificate, affidavit of mailing). If possible, get acknowledgments. Handle+15. If Estimate Grows Significantly, Amend: If your earlier estimate increases by more than a statutorily defined threshold (for example, over 30%), send an amended preliminary notice to cover the increased scope. Handle+16. Maintain Records: Copies of the notice, proof of mailing, any returned acknowledgments, etc.—all essential in any lawsuit or lien enforcement.
Sample Links & Documents You Should Reference or Use
[Arizona Revised Statutes § 33-992.01 (Preliminary Twenty Day Notice) text] Arizona Legislature
[Arizona Revised Statutes § 33-981 (Lien for labor; professional services or materials)] which ties lien rights to compliance with preliminary notice requirements. Arizona Legislature
[Arizona Preliminary Notices FAQ – Levelset] (for frequently asked questions, common pitfalls, etc.) Levelset
[Handle.com “How to File an Arizona Preliminary Notice”] – up-to-date guide with forms, statutory references. Handle
Key Takeaways & Practical Advice
Make it standard: Setup your contracts or internal workflow so sending a pre-lien notice is automatic for any project where you provide labor, materials, or tools.
Don’t delay: Even missing by a few days can cost you lien rights over some portion of the job.
Get the details right: Wrong address, wrong party, or missing required content can invalidate your notice.
Use verified mailing methods: Certified mail, first class with certificate of mailing, etc., to ensure you have proof.
Conclusion
For contractors in Arizona, the Preliminary 20-Day Notice (pre-lien) under A.R.S. § 33-992.01 is not just legal boilerplate—it’s a critical protection. It safeguards your right to be paid, gives you legal standing if things go wrong, defines what work/materials you can claim, and strengthens your position professionally.
Failing to file it properly can cost you significant money. So make pre-liens part of your standard job start-up process. When you do, you're not just protecting your bottom line—you’re strengthening your credibility, reducing risk, and positioning your business for sustainability.