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LLC 101 Guide

Unit 3 · Arizona

Foreign LLC Registration in Arizona (2026): 5 Tasks and the 3 Best Services

For registering an out-of-state LLC in Arizona in 2026, this unit puts Arizona Registered Agent.co ($199), Mainstay Filing ($199) and AZ Registered Agent.org ($199) at the top of the class, in that order. Registering takes 5 tasks and a $150 state fee.

Prepared by the LLC 101 Guide instructors

Read this first

Cost to register
$150
Look it up at azcc.gov; our reading dates from October 2026
Home certificate
60 days
Age limit
Yearly filing
None
Does not apply
Three-year state cost
$150
Without any service fee
How many tasks
5
From first to last

Course objectives

  • Which LLCs must register
  • What to file and what it costs
  • What staying registered costs
  • Who we would hire to file

Who we would hire in Arizona

Graded on the grading page: three-year cost (34%), assignments completed (31%), renewal price, fit with Arizona's rules and plain pricing.

Top of the class

1. Arizona Registered Agent.co: best for adding just Arizona

Our first pick$199 plus fees; renewal $99 yearly

Start the list with Arizona Registered Agent.co, because a $199 service fee and $99 a year for the Arizona agent after that.

On three-year cost it beats Mainstay Filing, which is a big share of the grade.

What the price covers

  • The Arizona registration, prepared and sent
  • One year of agent service is part of the price

What works

  • $99 yearly from year two
  • $199 plus the state fee
  • No agent fee in year one

What to weigh

  • No help in other states
Visit Arizona Registered Agent.coPartner link. We may earn money if you buy.

Top of the class

2. Mainstay Filing: best for a second state and more after it

Does most of the work$199 plus fees; renewal $149 yearly

Our second choice, Mainstay Filing: a $199 service fee plus Arizona's fee, then $149 a year for the agent.

Counted over three years, it trails Arizona Registered Agent.co by $100.

At renewal the agent becomes $149 a year, in every state.

What the price covers

  • Filing made with the state
  • The same price in each state

What works

  • Any state, one fee
  • $199 on top of Arizona's fee

What to weigh

  • $50 more a year for the agent
Visit Mainstay FilingPartner link. We may earn money if you buy.

Top of the class

3. AZ Registered Agent.org: best for Arizona-only registrations

One-state plan$199 plus fees; renewal $99 yearly

Third goes to AZ Registered Agent.org, since a $199 service fee and $99 a year for the Arizona agent after that.

It charges exactly what Arizona Registered Agent.co charges.

What the price covers

  • The Arizona registration, prepared and sent
  • One year of agent service is part of the price

What works

  • No agent fee in year one
  • $99 yearly from year two
  • $199 plus the state fee

What to weigh

  • No help in other states
Visit AZ Registered Agent.orgPartner link. We may earn money if you buy.

A comparison of the services

#ServiceFirst yearFrom year twoThree-year total
1Arizona Registered Agent.co$199$99/yr$397Visit Arizona Registered Agent.coPartner link. We may earn money if you buy.
2Mainstay Filing$199$149/yr$497Visit Mainstay FilingPartner link. We may earn money if you buy.
3AZ Registered Agent.org$199$99/yr$397Visit AZ Registered Agent.orgPartner link. We may earn money if you buy.
Listed prices, read November 13, 2026. None of the rows includes the $150 state fee.

How registration works in Arizona

  1. Task 1

    When registration is required

    If your LLC came from elsewhere and operates in Arizona, foreign registration is how it gets permission. What happens when an LLC operates unregistered: Its own lawsuits have to wait in Arizona until it registers (A.R.S. 29-3902(B)). The agreements are not voided (A.R.S. 29-3902(C)).

    Source: Look it up at azcc.gov; our reading dates from October 2026

  2. Task 2

    Ask your home state for proof of good standing

    Enclose certificate of existence or good standing, plus a certified copy of the organizational documents, dated within 60 days.

    Order it once everything else is ready.

  3. Task 3

    Choose the Arizona statutory agent

    Every LLC must name a registered agent with an in-state street address. The address has to be a place of business or residence in Arizona with a street address. A P.O. box can be listed only as a separate Arizona mailing address.

    Every recommended service includes the statutory agent.

    Source: Look it up at azleg.gov; our reading dates from October 2026

  4. Task 4

    File the Foreign Registration Statement

    To register, send the Foreign Registration Statement (Form L025) to the Arizona Corporation Commission, Corporations Division with $150.

    Source: Look it up at azcc.gov; our reading dates from October 2026

  5. Task 5

    Stay registered

    A foreign LLC has no recurring Arizona report to file.

What this unit costs

TaskGoes toTotal
Registering the LLCState office$150
Service, if you hire oneService$199 to start
Three-year state totalState office$150
The state numbers are official Arizona fees, sourced below. The three-year line combines the filing fee, the reports in years two and three and any minimum tax.

The reasoning behind the order

Course fee across three years settled first place in Arizona. It is worth 34% of the grade, and the other 66% comes from assignments the price completes, second-year fee, match with the state syllabus and plain pricing.

Arizona Registered Agent.co costs $397 for years one to three, while Mainstay Filing costs $100 more.

Short answers

What will foreign registration in Arizona cost?

$150 to the state. A service adds $199.

Which form do I file to register?

Registering here means sending the Foreign Registration Statement (Form L025) to the Arizona Corporation Commission, Corporations Division.

Do I need a certificate from my home state?

Yes: certificate of existence or good standing, plus a certified copy of the organizational documents, issued within 60 days of filing.

What if the LLC does business there without registering?

Its own lawsuits have to wait in Arizona until it registers (A.R.S. 29-3902(B)). The agreements are not voided (A.R.S. 29-3902(C)).

What is due after registering?

No recurring report for foreign LLCs in Arizona.

Which service should handle the registration?

The order is Arizona Registered Agent.co, Mainstay Filing and AZ Registered Agent.org, and Arizona Registered Agent.co is first since $199 over the state fee to register, then $99 yearly.

Reading list and sources

  1. Everything about Ariz above traces to azleg.gov, a page we reread in August 2026.
  2. Everything about Arizona formation fee: Filing fee, official source above traces to azcc.gov, a page we reread in October 2026.
  3. Everything about Arizona registered agent statute above traces to azleg.gov, a page we reread in October 2026.
  4. Everything about Arizona Corporation Commission, LLC forms above traces to azcc.gov, a page we reread in October 2026.
  5. Everything about Form L025 instructions above traces to azcc.gov, a page we reread in October 2026.
  6. Everything about A.R.S. 29-3903, registration of foreign LLC above traces to azleg.gov, a page we reread in October 2026.
  7. Everything about A.R.S. 29-3905, activities that are not doing business above traces to azleg.gov, a page we reread in October 2026.
  8. Everything about Arizona Corporation Commission FAQs above traces to azcc.gov, a page we reread in October 2026.
  9. Everything about A.R.S. 29-3902, registration to do business above traces to azleg.gov, a page we reread in November 2026.
  10. pricing page of Arizona Registered Agent.co, taken on November 13, 2026
  11. Arizona service page of Mainstay Filing, taken on November 13, 2026
  12. pricing page of AZ Registered Agent.org, taken on November 13, 2026