20-Day Preliminary NoticeAZ Rev. Stat. §§ 33-981 et seq.

Arizona Preliminary Notice Requirements

Arizona requires you to send a "20-Day Preliminary Notice" to protect your mechanics lien rights. Here's everything you need to know — who to send it to, when to send it, and how to deliver it.

Notice Required?

Yes

Must send to preserve lien rights

Deadline

20 days

From first furnishing

Late Notice?

Yes (20 days back)

Partial protection available

Notice Type

Preliminary

Understanding Preliminary Notices in Arizona

Arizona uses a preliminary notice system. Here's what that means in plain English: when you start working on a construction project (or deliver your first batch of materials), you need to send a document called the “20-Day Preliminary Notice” to certain people within 20 days.

Imagine you're an electrician hired to wire a new office building in Arizona. Your first day on the job site is March 1st. Under Arizona law, you need to send the 20-Day Preliminary Notice by March 21st. This notice goes to the property owner, the general contractor, and the construction lender. Send it on time to keep your lien rights active. This is the single most important compliance step on any Arizona project.

Who Needs to Send a Preliminary Notice in Arizona?

This applies to nearly everyone who works on a construction project and wants to protect their payment rights. That includes general contractors, subcontractors (electricians, plumbers, roofers, etc.), material suppliers (lumber, concrete, fixtures), equipment rental companies, laborers, architects and engineers, and surveyors. The specific rules — like who you need to notify and your deadline — depend on your role. Check the table below to see exactly what applies to you.

Why Preliminary Notices Matter

The 20-Day Preliminary Notice is what keeps your lien rights active in Arizona. It's standard paperwork — sending it on time protects your payment on every project.

What If You Miss the Deadline?

Late Notice is Better Than No Notice

If you miss the 20-day deadline, don't give up. Arizona allows late notices with partial protection. A late 20-Day Preliminary Notice covers your work from the 20 days BEFORE you sent the notice, plus everything after. You only lose protection for the earliest work. Send it as soon as you realize you missed the deadline.

Who Must Receive the 20-Day Preliminary Notice?

Who you need to notify depends on your role on the project. Here's a simple breakdown:

If You Are A...You Must Notify...
General ContractorProperty Owner, Construction Lender
SubcontractorProperty Owner, General Contractor, Construction Lender, Hiring Party
Material SupplierProperty Owner, General Contractor, Construction Lender, Hiring Party
LaborerProperty Owner, General Contractor, Construction Lender, Hiring Party
Equipment Rental CompanyProperty Owner, General Contractor, Construction Lender, Hiring Party
Architect / Engineer / SurveyorProperty Owner, General Contractor, Construction Lender, Hiring Party

How to Deliver the Notice in Arizona

Use one of the approved delivery methods below to make sure your notice is valid. Arizona accepts these methods:

Certified Mail — You send via USPS and get a green receipt card proving the notice was delivered. This is the gold standard because it creates clear proof of delivery.

Personal Delivery — You (or someone you designate) hand-deliver the notice directly to the recipient. Make sure to get a signed acknowledgment as proof.

Statutory Notice Language

Arizona law requires your 20-Day Preliminary Notice to include specific warning language. This isn't language you write yourself — it's exact wording specified by AZ Rev. Stat. §§ 33-981 et seq.. Using the wrong language (or leaving it out) can invalidate your notice. LienGrid automatically includes the correct statutory language for Arizona.

Owner Warning Language (excerpt from AZ Rev. Stat. §§ 33-981 et seq.)

In accordance with Arizona Revised Statutes § 33-992.01, this is not a lien. This is not a reflection on the integrity of any contractor or subcontractor. INFORMATION FOR OWNER If bills are not paid in full for the labor, professional services, materials, machinery, fixtures or tools furnished, or to be furnished, a mechanic's lien leading to the loss, through court foreclosure proceedings, of all or part of your property being improved may be placed against the property. You may wish to prot...

Official Arizona Resources

These are official state government websites where you can look up statutes, verify contractor licenses, and search business registrations.

State Legislature

Look up Arizona lien statutes and laws

Arizona State Legislature

Contractor Licensing

Verify licenses and check requirements

Arizona Registrar of Contractors

Secretary of State

Business entity search and registration

Arizona Secretary of State

Preliminary Notice Requirements by County in Arizona

Select your county for specific guidance on sending preliminary notices in your area.

15 counties found

ApacheCochiseCoconinoGilaGrahamGreenleeLa PazMaricopaMohaveNavajoPimaPinalSanta CruzYavapaiYuma

Arizona Preliminary Notice FAQ

Common questions about preliminary notices in Arizona, answered so anyone can understand.

A preliminary notice is a simple document you send near the beginning of a construction project to let the property owner (and sometimes the general contractor and lender) know that you're working on their property. It's NOT a threat, a lien, or a sign that something is wrong — it's a standard business practice required by law in many states. Think of it as "checking in" to say: "I'm providing labor/materials on this project, and I expect to be paid." In Arizona, this document is officially called the "20-Day Preliminary Notice" and is governed by AZ Rev. Stat. §§ 33-981 et seq..
Yes, Arizona requires it. If you skip this step, you could lose your right to file a mechanics lien later — which means you'd have much less legal leverage if you don't get paid. In Arizona, the "20-Day Preliminary Notice" must be sent within 20 days of when you first start working or delivering materials. The notice requirement exists to ensure transparency on construction projects — everyone involved should know who is providing labor and materials.
You have 20 days from the date you FIRST provide labor or materials to the project. Your "clock starts" on your very first day of work or your first delivery. For example, if you delivered lumber on March 1st, you'd need to send the 20-Day Preliminary Notice by March 21st. Pro tip: send the notice as soon as you start a project — don't wait until the deadline is close.
In Arizona, it's officially called the "20-Day Preliminary Notice" (formal document title: "PRELIMINARY 20-DAY NOTICE"). Different states use different names for essentially the same concept — you might hear it called a "preliminary notice," "notice to owner," "notice of furnishing," or "pre-lien notice" depending on the state. The Arizona version follows the requirements laid out in AZ Rev. Stat. §§ 33-981 et seq..
Don't panic — a late notice is better than no notice at all. In Arizona, if you send the 20-Day Preliminary Notice after the 20-day deadline, it still gives you partial protection. Specifically, you'll be covered for work and materials from the 20 days BEFORE you sent the late notice, plus everything after that date. You only lose protection for the earliest work. Example: If you started work on January 1st but didn't send notice until February 15th, you'd be protected for work from January 26th onward, but not for work done before that. Send the notice today if you haven't already.
It depends on your role on the project. Here's a simple breakdown: General Contractors (hired directly by the owner) must notify: the property owner, the construction lender (bank financing the project). Subcontractors (hired by the GC or another sub) must notify: the property owner, the general contractor, the construction lender (bank financing the project), whoever hired you. Material Suppliers must notify: the property owner, the general contractor, the construction lender (bank financing the project), whoever hired you. Laborers follow the same rules as subcontractors and must notify: the property owner, the general contractor, the construction lender (bank financing the project), whoever hired you. Equipment rental companies follow material supplier rules and must notify: the property owner, the general contractor, the construction lender (bank financing the project), whoever hired you. Design professionals (architects, engineers, surveyors) must notify: the property owner, the general contractor, the construction lender (bank financing the project), whoever hired you. It's critical to send the notice to ALL required parties — missing even one can weaken your legal standing.
Arizona accepts these delivery methods: Certified Mail, Personal Delivery. Most people use certified mail because it gives you a receipt proving the notice was sent AND received — this is your proof if there's ever a dispute. Keep the receipt and tracking number in your project file. Important: if you use a delivery method that isn't on the approved list, your notice could be considered legally invalid even if the recipient actually received it. Don't take shortcuts with delivery.
Yes — Arizona requires the 20-Day Preliminary Notice to include specific warning language spelled out in AZ Rev. Stat. §§ 33-981 et seq.. This isn't language you make up yourself. The state has exact wording that must appear on the notice, explaining to the property owner their rights and the potential consequences of unpaid work. Using the wrong language (or leaving it out) could make your notice invalid. This is one reason many contractors use tools like LienGrid — it automatically includes the correct statutory language for Arizona so you don't have to worry about getting it wrong.
This is a big deal: if you skip the required 20-Day Preliminary Notice in Arizona, you could completely lose your right to file a mechanics lien. That means if you're not paid for $50,000 worth of work, you might have no lien to fall back on. You could still pursue other legal options like breach of contract lawsuits, but those are more expensive and time-consuming than filing a lien. The preliminary notice is your insurance policy — a small upfront step that protects potentially large payments down the road. Never skip it.
Arizona's 20-Day Preliminary Notice requirements apply to both types of projects, but there can be important differences. Residential projects (homes, condos, small apartments) often have extra protections for homeowners — for example, some states require additional disclosures or have shorter deadlines for residential work. Commercial projects (offices, retail spaces, industrial buildings) may have different thresholds or requirements. Always check AZ Rev. Stat. §§ 33-981 et seq. for the specific rules that apply to your project type, or use a compliance tool like LienGrid that automatically adjusts for the project type.
Yes — LienGrid automates the entire preliminary notice process for Arizona. Instead of manually tracking deadlines, looking up who needs to receive the notice, and making sure you use the right legal language, LienGrid does it all for you. The platform generates your 20-Day Preliminary Notice with the correct Arizona statutory language, identifies every required recipient, tracks your 20-day deadline, and can even send the notice via Certified Mail, Personal Delivery on your behalf. It's the easiest way to stay compliant and protect your right to get paid. Try it free — no credit card required.
View Arizona mechanics lien filing requirements

Preliminary Notice Rules in Neighboring States

California →Colorado →New Mexico →Nevada →Utah →
Content reviewed by LienGrid's compliance team|Last reviewed: March 2026

This information is for general guidance only and does not constitute legal advice. Arizona laws change frequently — always verify current requirements and consult a licensed attorney in the relevant jurisdiction before taking legal action. LienGrid makes every effort to keep this information accurate, but we cannot guarantee completeness or currency.

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