Pima County, Arizona — Mechanics Lien Filing Guide

Everything you need to know about filing a mechanics lien in Pima County under Arizona law — deadlines, notice requirements, and step-by-step process.

Preliminary Notice

20 days

Lien Filing Deadline

120 days

Enforcement Period

6 months

Notice Category

Preliminary

Mechanics Lien Requirements in Pima County

If you've provided labor, materials, or services for a construction project in Pima County,Arizona, and haven't been paid, you have the legal right to file a mechanics lien. This applies whether you're a general contractor, subcontractor, plumber, electrician, roofer, material supplier, or any other construction professional working in Pima County.

All construction projects in Pima County are governed by Arizona state law (AZ Rev. Stat. §§ 33-981 et seq.). There isn't a separate Pima County lien law — the state rules apply uniformly. However, when you file the lien paperwork, you file it at the Pima County Recorder's office (or equivalent filing office).

Important: To keep your lien rights active on a Pima County project,Arizona requires you to send the “20-Day Preliminary Notice” within 20 days of starting work or delivering materials. This is a standard compliance step — not confrontational — and it keeps all your options open.

Once you file your mechanics lien in Pima County, the property owner can't easily sell or refinance the property until your claim is resolved. You then have 6 months to file a lawsuit to enforce the lien if the owner still doesn't pay. Most disputes are resolved through payment or negotiation after the lien is filed.

Who Must Receive Notice for Pima County Projects?

Your RoleMust 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

Who Can File a Mechanics Lien in Pima County?

Nearly anyone who contributes to a construction project in Pima County can file a lien if they're not paid. This includes general contractors, subcontractors (electricians, plumbers, roofers, etc.), material suppliers, equipment rental companies, laborers, architects and engineers, and surveyors. You don't need a direct contract with the property owner — even if you're several layers down the payment chain, Arizona law protects your right to get paid for work done in Pima County.

How a Mechanics Lien Protects You

A mechanics lien puts a legal claim on the Pima County property you improved — the owner can't easily sell or refinance until your payment is resolved. In most cases, filing the lien is enough to get paid without going to court. To keep this option available, make sure your notices and deadlines are handled on time.

Accepted Delivery Methods

Arizona accepts these methods for delivering notices on Pima County projects:

Certified Mail (with return receipt)Personal Delivery (hand-delivered)

Key Rules for Pima County

Late notice only effective from 20 days before sent

Lien claim limited to 130% of estimated amount in preliminary notice

Amended notice required if total exceeds 30% of original estimate (projects after 12/31/2019)

Court may award reasonable attorneys fees to successful party

Lis pendens must be filed within 5 days of filing action

First class mail with certificate of mailing is an accepted service method

Filing Deadlines for Pima County

Lien Filing Deadline

120 days

From completion (or 60 days from Notice of Completion)

Enforcement Deadline

6 months

To file foreclosure action after recording the lien

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

File a Mechanics Lien in Pima County, Arizona

LienGrid handles the entire lien filing process in Pima County, Arizona — from required notices to the filing itself. State-compliant documents, certified mail delivery, and deadline tracking, all in one platform.

Start Free — File NowSee How It Works

Pima County Mechanics Lien FAQ

Common questions about filing a mechanics lien in Pima County, Arizona.

Filing a mechanics lien in Pima County follows Arizona state law (AZ Rev. Stat. §§ 33-981 et seq.). Here's the basic process: First, you need to have sent the required "20-Day Preliminary Notice" to the proper parties. Then, prepare your lien document with your name, the property address, a description of work done, and the amount owed. File it at the Pima County Recorder's office (or equivalent filing office) — there's usually a small recording fee. After filing, send a copy to the property owner. You have 120 days from completion (or 60 days from Notice of Completion) to file. File within this window to keep your lien rights protected.
Yes. Arizona requires a "20-Day Preliminary Notice" for construction projects, including those in Pima County. You must send it within 20 days of when you first start working or delivering materials to the project. This notice goes to specific parties (like the property owner and general contractor) and protects your right to file a lien later if you're not paid. Sending it on time keeps your lien rights active and gives you full protection if payment issues come up later.
For projects in Pima County, you have 120 days from completion (or 60 days from Notice of Completion) to file your mechanics lien. This is a hard deadline set by Arizona state law — not a Pima County rule specifically. File within this window to keep your lien rights protected on that project. After filing, you have 6 months to file a lawsuit to enforce the lien if the owner still doesn't pay.
You file your mechanics lien at the Pima County Recorder's office (sometimes called the Register of Deeds or Clerk's office, depending on the county). This is the office that handles all real property records for Pima County. You'll need to bring your completed lien document and pay a recording fee. Some counties also accept electronic filings. The lien requirements come from Arizona state law (AZ Rev. Stat. §§ 33-981 et seq.), but the actual filing happens at the county level.
For Pima County construction projects, Arizona law accepts these delivery methods: Certified Mail, Personal Delivery. The delivery method matters — using a method that isn't on the approved list could make your notice invalid even if the other party received it. Always keep proof of delivery (receipts, tracking numbers) in your project file.
Almost anyone who provides labor, materials, or services for a construction project in Pima County can file a mechanics lien if they're not paid. This includes general contractors, subcontractors (electricians, plumbers, roofers, etc.), material suppliers, equipment rental companies, architects, engineers, and laborers. Even if you don't have a direct contract with the property owner, Arizona law typically allows you to file a lien to protect your right to payment.
Yes — LienGrid automates the entire mechanics lien process for Pima County and all of Arizona. The platform tracks your deadlines, generates compliant notices with the correct Arizona statutory language, identifies required recipients, and can send notices via approved delivery methods on your behalf. Instead of manually tracking dates and managing compliance on your Pima County project, LienGrid handles it all. Start a free trial to see how it works.

Other Counties in Arizona

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View preliminary notice requirements in Pima County
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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.