Arizona Prompt Payment Act: A 2026 Deadline Guide for GCs

If you run payments for a general contractor on Arizona private work, the Arizona Prompt Payment Act decides how fast money has to move down your job — and how expensive it gets when it doesn't. Arizona's version is unusual: it doesn't just set a clock, it deems your billing approved if the owner sits quiet, then charges statutory interest the moment a payment runs late. This guide breaks down the 2026 deadlines, the "deemed certified" trap that cuts both ways, the interest math, and how to keep the waiver on the same rail as the check.

SureHold is not a law firm and this post is not legal advice. Verify any deadline against the statute and your own counsel before you rely on it.

What the Arizona Prompt Payment Act actually requires

The Act lives in the contractor licensing statutes at A.R.S. §§ 32-1129 through 32-1129.07 and governs private construction contracts. (Public work runs under a separate scheme in Title 34.) Rather than a single clock, Arizona runs a two-stage sequence: a certification window, then a payment window.

Under A.R.S. § 32-1129.01, a private-project owner has 14 days to review and certify a general contractor's written billing or estimate. If the owner disagrees, it must issue a written statement before that 14 days is up, itemizing which amounts are not approved and why. If the owner says nothing, the billing is deemed certified and approved by operation of law — and payment is then due within 7 days of that certification.

Stage	Trigger	Deadline
Owner certifies (or objects to) a GC billing	Owner receives the written billing/estimate	14 days — silence = deemed certified
Owner pays the certified amount	Billing certified (or deemed certified)	7 days after certification
Contractor pays subcontractors/suppliers	GC receives each progress payment, retention release, or final payment	7 days after receipt

Do the arithmetic and a clean, undisputed pay application is due roughly 21 days after it lands on the owner's desk — and the 14-day certification clock is the one people forget, because it runs whether or not anyone at the owner's office actually looks at the invoice.

The "deemed certified" rule cuts both ways

This is the clause that makes Arizona distinctive, and it is a double-edged sword.

Facing up the chain, it is a gift. If your owner never responds to a properly submitted billing, the money is not stuck in limbo — after 14 days it is certified as a matter of law, the payment clock starts, and any refusal to pay after that is a straightforward statutory violation. You need not prove the owner "agreed," only that the billing was delivered and 14 days passed with no written objection.

Facing down the chain, it is a landmine. The same silence-equals-approval logic runs against you when a subcontractor bills you. If you intend to withhold — for defective work, a backcharge, or a missing lien waiver — you have to say so in writing, with specifics, inside the window. A vague "we're still reviewing it" is not an itemized objection, and letting the clock run can leave you owing an amount you meant to contest, plus interest. Under A.R.S. § 32-1129.02, your right to withhold is tied to stating the deficiency — it is not a blanket license to sit on a pay app you dislike.

Interest, and why it compounds faster than you think

Late payment in Arizona is not a soft foul. Both § 32-1129.01 and § 32-1129.02 attach interest at one and one-half percent per month — 18% a year — on any late or wrongfully withheld amount, or a higher rate if the contract sets one.

Two details matter for your AP desk:

The GC-to-sub clock starts when you get funded, not when you cut checks. Under § 32-1129.02, a contractor must pass the sub's share of each progress payment, retention release, or final payment down within 7 days of receiving it. If that is delayed more than 7 days, interest begins accruing on the eighth day on the unpaid balance.
Owners owe it too. If the owner misses the 7-day payment window after certification, it pays the contractor 1.5% per month under § 32-1129.01 — so you can be non-paid upstream and, if you sit on the money, non-paying downstream in the same week.

Run the math on a real number. Hold $200,000 of a sub's certified progress payment 30 days past the deadline and you owe roughly $3,000 in statutory interest — on top of the principal. Across three subs in a busy month, the penalty alone can eclipse a project's margin. Our ROI calculator puts a number on what slow, manual pay cycles cost you in interest and admin time over a year.

The right to suspend work

Prompt payment cuts both ways, and this is the clause that gives it teeth. Arizona law lets a contractor (or subcontractor) who has not been paid an undisputed, certified amount suspend performance or terminate the contract — but only after giving the non-paying party written notice, generally at least seven days before the intended suspension, as several Arizona construction attorneys read the statute (see the 2026 prompt-pay overview from RSN Law). The takeaway runs both directions: an unpaid sub can lawfully freeze your critical path while you wait on an owner draw, and you hold the identical weapon against a slow-paying owner. No written notice means no protected suspension.

Where lien waivers fit the Arizona payment clock

Here is the tension every Arizona GC lives with. The Act pushes you to release money fast — 7 days from funding, with 18% interest waiting if you slip. Your lien risk pushes you to collect a signed waiver before the money leaves. Do them in the wrong order and you either pay late (interest) or pay unwaived (lien exposure). Arizona sharpens this because the state prescribes its waiver language by statute and requires a 20-day preliminary notice to preserve lien rights in the first place — we covered that filing in our guide to the Arizona 20-Day Preliminary Notice.

The clean answer is to make the waiver and the payment a single, coupled step instead of two disconnected emails: the conditional waiver goes out with the pay-app, the sub signs, and the release is tied to that signature — so you are not choosing between hitting the 7-day clock and protecting your title. This is the model behind lien waiver escrow: SureHold is the self-serve, transparently priced product that couples a payment release to a signed waiver. (It is not a bank and does not take custody of funds the way a traditional escrow agent would; the waiver-signature event is what gates the release.)

For the Arizona-specific setup — statutory-form details, notice timing, and the state's substantial-compliance standard — start with our Arizona lien waiver software page and the Arizona lien waiver reference. For the general overview, see lien waiver software. SureHold works in all 50 states; Arizona is simply one of our focus markets.

What Arizona GCs should do this quarter

A short, boring checklist beats a clever one here:

Timestamp every billing you submit. The 14-day certification clock — and the deemed-approval protection — only helps if you can prove when the owner received a written billing.
Object in writing, itemized, inside 14 days. Silence is approval in Arizona; a vague hold does not preserve your dispute and can leave you owing the amount plus interest.
Disburse within 7 days of funding, not 7 days of "getting to it." Interest starts on day eight — build the sub-payment run into the same day you post an owner draw.
Keep the waiver on the same rail as the check. If collecting the signed release is a separate chore, it will lag the payment and reintroduce the lien risk you were trying to close.

Takeaway

Arizona deems a GC's billing certified 14 days after the owner receives it, requires payment 7 days after that, gives you 7 days to pass money down to subs, and charges 1.5% per month — 18% a year — the moment anyone runs late. The "deemed certified" rule is your best friend upstream and your biggest exposure downstream. Pair every release with its waiver so hitting the deadline never means dropping your lien protection. To run one Arizona pay cycle through the coupled waiver-and-release flow, create a free SureHold account.