Arizona Informal Probate: How It Works and Whether You Qualify

Most Arizona estates don't need a judge. That's not a loophole — it's how the Arizona legislature designed the system. The majority of uncontested estates move through a track called informal probate, which is handled administratively by a Probate Registrar and requires no court hearing at all. You file the paperwork, the Registrar reviews it, and Letters of Appointment are issued.

The question is whether your estate qualifies. And if it doesn't, what happens instead.

What Informal Probate Actually Is

Informal probate is a non-judicial administrative process governed by Arizona Revised Statutes Title 14. Instead of appearing before a Superior Court judge, the Personal Representative (PR) submits an application to a Probate Registrar — a court officer, not a judicial officer — who reviews the filing for legal sufficiency and approves it without any hearing.

The outcome of informal probate is the same as formal: the PR receives official Letters of Appointment with the court's seal, giving them legal authority to act on behalf of the estate. Banks, title companies, the MVD, and government agencies all accept these Letters. The difference is how you get there: no scheduling hearings, no arguing before a judge, no adversarial process.

This efficiency comes with conditions. Informal probate only works when nothing is in dispute.

The Qualifying Conditions for Informal Probate

Arizona law, specifically A.R.S. § 14-3301 and related statutes, permits informal probate when all of the following conditions are true:

The original will is available. Informal probate requires the original, ink-signed Last Will and Testament. Not a copy, not a photocopy, not a scan. If only a copy exists and the original is lost or destroyed, the estate must go through formal probate, where a judge determines whether the copy is valid. This single requirement trips up more executors than any other.

There is no pending challenge to the will. If any heir, beneficiary, or interested party has raised or is likely to raise a formal objection to the will's validity or interpretation, informal probate is not appropriate. Any interested party can file a demand for formal proceedings even after informal probate is initiated.

There is no dispute over who should be appointed PR. Arizona's priority of appointment hierarchy under A.R.S. § 14-3203 is rigid. The person at the top of the hierarchy (will nominee, then surviving spouse, then other devisees, and so on) has the right to serve. If two people of equal priority both want the role and neither will step aside, that conflict must be resolved by a judge — meaning formal probate.

The estate is solvent, or its insolvency is clear. If there are unusual questions about whether debts exceed assets, or complex creditor disputes are anticipated, formal or supervised administration may be more appropriate.

No interested party demands formal proceedings. Any heir, devisee, or creditor who has standing can demand formal proceedings within a specific window after informal probate is initiated. If this happens, the estate is converted to formal probate mid-stream.

The Informal Probate Application Process

Assuming the estate qualifies, here's what the application process looks like from start to Letters of Appointment.

Step 1: Complete the mandatory fiduciary training. Under Rule 38 of the Arizona Rules of Probate Procedure, any layperson seeking appointment as Personal Representative must complete a Supreme Court-approved non-licensed fiduciary training program before the Clerk of Court will issue Letters of Appointment. The training is available at azcourts.gov/probate/training — approximately 90 minutes of narrated modules in English and Spanish. Print and sign the Declaration of Completion of Training when done. Without this form in your application packet, the Clerk will reject the filing immediately.

Step 2: Assemble the application packet. The filing packet for informal probate includes: the Probate Cover Sheet, the Probate Information Form, the Application for Informal Appointment of Personal Representative, the original Last Will and Testament, a certified death certificate, the executed Declaration of Completion of Training, and any signed Waivers of Bond from the heirs. Maricopa County's Law Library Resource Center at superiorcourt.maricopa.gov/llrc/probate-court-forms/ provides the standard forms used statewide.

Step 3: Pay the filing fee and submit. Filing fees vary by county. Maricopa County's informal probate petition typically runs $191–$306 after local surcharges. Pinal County: $251. Coconino County: $351. Mohave County: $371. You file with the Superior Court Clerk in the county where the decedent was domiciled at death. If the decedent lived out of state but owned Arizona real estate, you file in any county where the property is located.

Step 4: The Registrar reviews the application. Unlike formal probate, there is no scheduled hearing. The Registrar reviews the packet for legal sufficiency — essentially confirming that the forms are complete, the training is documented, the original will is present, and the priority hierarchy makes sense. If everything checks out, the Registrar issues a Statement of Informal Appointment.

Step 5: Letters of Appointment are issued. The PR signs an Acceptance of Appointment, submitting to Arizona court jurisdiction. The court seals the Letters and they become the PR's legal instrument of authority. Banks will unfreeze accounts. Title companies will process deeds. Government agencies will recognize the PR's right to act.

The gap between submission and Letters issuance is typically 2–4 weeks, depending on county workload.

What Happens After Appointment

Informal appointment is the start, not the finish. The PR's statutory responsibilities begin immediately and involve strict deadlines that cannot be adjusted regardless of personal circumstances.

Within 30 days of appointment, the PR must mail Notice of Appointment to all known heirs and devisees, then file Proof of Notice with the court.

Within 90 days of appointment, the PR must complete a comprehensive Inventory and Appraisement of all estate assets valued at fair market value as of the date of death.

The PR must also publish a Notice to Creditors in a newspaper of general circulation in the county for three consecutive weeks under A.R.S. § 14-3801. From the date of first publication, unknown creditors have four months to file claims. Known creditors get the later of four months or 60 days from receiving direct written notice. The PR cannot safely distribute estate assets until this four-month window closes — doing so and having a valid claim emerge afterward can create personal liability for the PR.

Informal Probate vs. Formal Probate: The Key Differences

Formal probate under A.R.S. § 14-3203 is statutorily required in specific circumstances. The most common trigger: the original will is unavailable. A second common trigger: a formal objection is filed by any interested party. A third: the priority hierarchy is genuinely ambiguous and multiple people claim the right to serve as PR without anyone conceding.

Supervised administration sits above both, where every distribution requires prior court approval. This is rare and expensive and typically reserved for estates where beneficiaries have strong reason to distrust the PR's integrity.

When Informal Probate Gets Converted to Formal

This surprises executors who assumed they were on a clean track. Even after informal probate has been opened and Letters issued, an interested party — any heir, any creditor — can petition to convert the proceedings to formal probate. This converts a no-hearing administrative track into a litigated proceeding with scheduled court dates.

If there's any chance a family member is dissatisfied with the will, the division of assets, or the choice of PR, that risk exists throughout the administration period. The best protection is documentation and strict adherence to statutory notice requirements. Properly executed notices to all heirs and creditors, filed on time, create a record that makes conversion petitions much harder to sustain.

Does Your Estate Even Need Probate?

Before going through any of this, check whether the estate qualifies to bypass court entirely. Arizona's 2025 reforms under House Bill 2116 raised the Small Estate Affidavit thresholds to $200,000 net equity for personal property and $300,000 net equity for real property. Net equity means the county tax roll value of the real estate minus the outstanding mortgage principal — not the market value, not the Zillow estimate.

A significant number of Arizona estates — particularly those of middle-class retirees — fall under these limits and can be settled through a notarized affidavit rather than any court proceeding. If that's your situation, informal probate still requires weeks of paperwork and months of creditor waiting. The affidavit route requires neither.

The Arizona Probate Process Guide includes a step-by-step analysis of which track applies to your estate, the complete informal probate filing checklist, and the county-by-county fee schedule and form requirements for Maricopa, Pima, Pinal, Mohave, Coconino, and Yavapai courts.

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