Arizona Rules of Civil Procedure · Rule 4.1
Service of Process Within Arizona
A complete guide to ARCP Rule 4.1 — the rule governing how legal documents must be served on individuals, corporations, government entities, and other parties in Arizona civil actions.
What Is ARCP Rule 4.1?
Arizona Rule of Civil Procedure 4.1 governs service of process within Arizona. It establishes who may be served, how service must be performed for each type of party, and when alternative or publication-based service is permitted. The rule applies to all civil actions in Arizona Superior Courts and was last amended effective January 1, 2023.
Under Rule 4.1(a), all process — including a summons — may be served anywhere within the state of Arizona. The summons and the pleading being served must be served together within the time allowed under Rule 4(i).
Who can serve? Under ARCP Rule 4(d), process must be served by a person who is at least 18 years old and is not a party to the action. This includes registered private process servers, sheriffs, constables, and court-appointed individuals.
Service Methods by Party Type
Rule 4.1 establishes specific service methods depending on who is being served. Select the applicable party type below.
Serving an Individual
Rule 4.1(d)This is the default method unless waiver, minor, incapacitated person, or publication rules apply.
Serving a Minor (Under 16)
Rule 4.1(e)If a court has appointed a guardian or conservator for the minor, serve the guardian/conservator and also separately serve the minor.
Serving a Government Entity
Rule 4.1(h)Government entities may also waive service under Rule 4.1(c).
Serving a Corporation, Partnership, or Association
Rule 4.1(i)Depositing with the Arizona Corporation Commission constitutes personal service on the corporation.
Waiver of Service — Rule 4.1(c)
Rule 4.1(c) allows a plaintiff to request that a defendant waive formal service of summons. This avoids the cost of process serving and gives the defendant additional time to respond. However, if the defendant refuses without good cause, the court must impose the cost of service — plus attorney's fees — on the defendant.
Send Written Notice
Plaintiff sends written notice to defendant addressed to all required parties, naming the court, and including two copies of the waiver form (Rule 84, Form 2) and a prepaid return means.
30-Day Response Window
Defendant has at least 30 days after the request was sent to sign and return the waiver. Request must be sent by first-class mail or other reliable means.
Waiver Returned or Refused
If defendant signs and returns the waiver, they have 60 days from the date the request was sent to file an answer. If defendant refuses without good cause, the court must impose service expenses and attorney's fees on the defendant.
File the Waiver
Plaintiff files the executed waiver. No proof of service is then required, and the rules apply as if summons was served at the time the waiver was filed.
Key Waiver Rule: Jurisdiction Not Waived
Under Rule 4.1(c)(5), waiving service of a summons does not waive any objection to personal jurisdiction or venue. The defendant preserves all such defenses.
Alternative Means of Service — Rule 4.1(k)
If standard service methods are impracticable, the court may — on motion, without notice to the person to be served — authorize an alternative means of service. The serving party must still make a reasonable effort to provide actual notice and must mail documents to the last-known address.
Show Impracticability
Party must show that standard service methods under Rule 4.1(c)–(j) are impracticable.
File Motion
File a motion with the court (no notice to the person to be served is required) requesting alternative service.
Court Order
Court issues an order allowing alternative means of service.
Actual Notice Effort
Serving party must make reasonable effort to provide the person with actual notice of the action's commencement.
Mail Required
Mail the summons, pleading, and court order to the last-known business or residential address of the person to be served.
Service by Publication — Rule 4.1(l)
Service by publication is the last resort when all other methods — including alternative service — are impracticable. It requires a court order, publication for four consecutive weeks, and filing of a detailed affidavit. Service is not complete until 30 days after first publication.
Exhaust All Other Methods
Party must show that all other service methods — including alternative service — are impracticable.
File Motion Supported by Affidavit
File motion supported by affidavit describing reasonably diligent efforts to serve the person.
Court Order
Court may order service by publication if (A) party cannot determine current address or person is intentionally avoiding service, (B) publication is the best means practicable, and (C) motion is properly supported.
Publish Once a Week for 4 Successive Weeks
Publish summons and statement in a newspaper in the county where action is pending, and if last-known address is in a different county, also in a newspaper in that county.
Mail if Address Known
If the serving party knows the address of the person being served, mail summons and pleading on or before the date of first publication.
Service Complete After 30 Days
Service is complete 30 days after summons and statement is first published in all required newspapers.
File Affidavit of Publication
File affidavit stating manner and dates of publication and mailing, and circumstances warranting service by publication, with printed copy of publication attached.
Service by Publication on Unknown Heirs — Rule 4.1(m)
An unknown heir of a decedent may be sued as an unknown heir and served by publication in the county where the action is pending, using the Rule 4.1(l) procedures, if the action involves foreclosure of a mortgage or other title to real property, and the heir must be a party for a complete determination of the action.
Rule 4.1 Quick Reference
Territorial Scope
Anywhere within Arizona (Rule 4.1(a))
Summons + Pleading
Must be served together (Rule 4.1(b))
Waiver Response Time
At least 30 days after request sent (Rule 4.1(c)(1)(F))
Answer Time After Waiver
60 days after waiver request was sent (Rule 4.1(c)(3))
Publication Frequency
Once per week for 4 successive weeks (Rule 4.1(l)(2)(A))
Publication Complete
30 days after first publication (Rule 4.1(l)(2)(D))
State of Arizona
Serve the Attorney General (Rule 4.1(h)(1))
No Corporate Agent in AZ
File with AZ Corporation Commission (Rule 4.1(j))
Official Rule Citation
16 A.R.S. Rules of Civil Procedure, Rule 4.1 — AZ ST RCP Rule 4.1
Added September 2, 2016, effective January 1, 2017. Amended effective January 1, 2022; January 1, 2023.
Arizona State Court Rules are current with amendments received through January 1, 2025.
Frequently Asked Questions — ARCP Rule 4.1
Need Papers Served Under Arizona Rule 4.1?
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