Arizona Prompt Pay Act and What Contractors Need to Know

The Arizona Prompt Pay Act is a set of state statutes in Title 32, Chapter 10, Article 5 of the Arizona Revised Statutes that establishes payment and approval timelines for covered construction billings and provides interest consequences for certain unpaid amounts. In practice it creates a clock. An owner reviews a payment application within a set period, pays an approved amount within a set period, and a contractor or subcontractor that receives payment must pay its licensed subcontractors and suppliers for covered labor or materials within seven days. This article is general information for Arizona contractors, not legal advice.

What Is the Arizona Prompt Pay Act?

Arizona's prompt payment statutes date back to 1989. Later amendments clarified billing timelines, addressed withholding for defective work, and expanded notice requirements. Amendments effective in 2015 extended prompt payment protections to architects and engineers on many public projects. The law exists because construction money moves in a chain. An owner pays the general contractor, the general contractor pays its subcontractors, and those subcontractors pay their own suppliers and lower tiers. When one link stalls, everyone below it carries the cost. AZAGC also maintains an industry resource on contractor licensing in Arizona, which is a useful companion topic for firms reviewing their payment and compliance practices.

Two scope limits matter before you rely on this Arizona prompt payment law. First, unlicensed contractors and subcontractors cannot enforce it. Second, a 2017 Arizona Court of Appeals decision held that the Act does not apply to work on federal projects. There are also special notice requirements for contracts to build a dwelling for an owner-occupant. Confirm which framework governs your project before you send a demand letter.

How Do Construction Payment Timelines Work in Arizona?

Payment starts with a billing. The statutes contemplate regular monthly invoices moving up the chain: supplier to subcontractor, subcontractor to general contractor, and general contractor to owner, for labor and materials that meet the contract requirements. The owner then has a defined window to approve or object, and a further window to pay what was approved. Public works contracts and private works contracts use different windows. The table below summarizes the timelines commonly reported in Arizona construction payment guidance. Contract terms can change these periods in some situations, so check your contract documents and the current statute text before you count days.

For unpaid subcontractors and suppliers, guidance reports statutory interest of 1.5% per month, or 18% per year. Verify the applicable statute and your contract terms before relying on that figure.

The Seven-Day Flow-Down Rule

The most consistently reported rule in Arizona is the seven-day flow-down. Once a contractor or subcontractor receives payment from above, it must pay its licensed subcontractors and suppliers for the covered labor or materials within seven days. This seven-day requirement is an important part of subcontractor payment practices in Arizona, particularly when billing cycles are busy. Unpaid amounts can accrue statutory interest, and failure to pay is grounds for disciplinary action by the Arizona Registrar of Contractors.

Retainage and Downstream Payment Clauses

Contract terms on retainage and downstream payment can affect what is due and when. Review those provisions with qualified construction counsel before you sign, rather than after a payment stalls.

When Can Payment Be Withheld?

Withholding is allowed, but it is not open-ended. An owner may withhold all or part of a payment for a variety of reasons, including defective construction work that has not been corrected, provided the required procedures are followed. Those procedures center on timely written notice that states the reason. On private projects, owners generally must give notice within 14 days of receiving a billing request. On public projects, the public entity typically has about seven days to approve or dispute an invoice and explain any withholding. A contractor or subcontractor who withholds from a lower tier must also give written notice, generally within seven days.

A contractor or subcontractor is not required to pass a lower tier's invoice up to the owner if it genuinely disputes the sufficiency of that work or those materials. The practical point for every tier is the same: withholding without a clear, timely, written reason can create an avoidable payment dispute. Grounds reported in Arizona guidance include:

• Defective work that has not been corrected
• Work or materials that do not meet contract requirements
• A disputed question about the sufficiency of the work performed or materials supplied

What Should Contractors Do When Payment Is Late?

Work the problem in order, and keep a written record at every step. A documented sequence protects your position and often resolves the issue early.

1. Confirm that the billing was complete, submitted on schedule, and included the documents required by the contract.
2. Count the days against the correct framework, private or public, and check your contract for modified periods.
3. Ask in writing whether a notice of withholding was issued and what it says. If no notice exists, say so in the same message.
4. Send a written demand that identifies the invoice, the amount, the due date, and the interest you believe is accruing.
5. Ask qualified construction counsel promptly about any other remedies and deadlines that may apply to the dispute.
6. Consider the statutory options. Under ARS 32-1183, a subcontractor or material supplier may notify the Registrar of Contractors and the owner in writing of a payment that is less than the required amount or percentage.

One caution on the Registrar route. A licensed contractor, licensed subcontractor, or material supplier filing a complaint under that section must post a surety bond or cash deposit of five hundred dollars or one-half of the amount due, whichever is less. If the Registrar determines the complaint is without merit and frivolous, the filer can be ordered to pay. That matters when the disputed amount is small.

Documentation That Can Help Prevent Construction Payment Disputes in Arizona

Clear documentation can make it easier to review a payment application and address a dispute. Build these habits into your billing cycle:

• Bill monthly and on the same date, with quantities tied to the schedule of values
• Get change order documentation signed before the work proceeds whenever the contract allows
• Keep daily reports and photographs that support progress payment percentages
• Log the date every billing was transmitted and to whom, so the clock is provable

For related legislative coverage, read AZAGC's article on HB 2999 and contractor payment protection.

Putting the Arizona Prompt Pay Act to Work on Your Projects

Put the Arizona Prompt Pay Act to work by building your billing cycle around the timelines above, insisting on written reasons for any withholding, and paying licensed subcontractors and suppliers for covered labor or materials within seven days after receiving payment. Those habits turn a statute into a working risk control. Confirm current requirements against the statute text and your contract documents, and involve qualified construction counsel on live disputes.

AZAGC provides membership, advocacy updates, and industry resources for Arizona's construction community. Explore those resources at azagc.org.