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LLC SchoolhousePlain LLC lessons, one state at a time.

Module 3 · Arizona

Foreign LLC Registration in Arizona (2026): a 5-Step Lesson and the 3 Best Services

Arizona Registered Agent.co ($199), Mainstay Filing ($199) and AZ Registered Agent.org ($199) earned the top three grades for registering an LLC from another state in Arizona in 2026, in that order. The 5 steps run from checking whether you must register to keeping up with the yearly filing, and the state fee is $150.

Taught by the LLC Schoolhouse editors

The short version

State registration fee$150Class notes: azcc.gov (October 2026)
Home-state certificate60 daysOldest it may be at filing
Yearly reportNoneNo report
Three years of state fees$150Before service fees
Lesson steps5From start to finish

What you will learn

  • Whether Arizona registration applies to you
  • The official form and fee
  • What comes after registering
  • Which services we would use and why

If you would like help with the filing

We grade cost over three years first, then steps handled, renewal, Arizona fit and clear pricing (report card).
Best grade

1. Arizona Registered Agent.co: best for one extra state

Service fee $199, renewal $99 a year

We would start a new founder with Arizona Registered Agent.co: $199 added to the state fee, with the agent covered in year one, then $99 a year.

On three-year cost it beats Mainstay Filing, which is a big part of our grading.

What the price covers

  • The filing is done for you
  • One year of agent service

Marks in its favor

  • Agent covered for year one
  • $99 a year for the agent afterward
  • $199 to register

Where it loses points

  • Serves only Arizona
Works in every state

2. Mainstay Filing: best for expanding LLCs

Service fee $199, renewal $149 a year

Mainstay Filing is a sound second choice because it files the Arizona registration for $199 plus the state fee and covers the first agent year.

On three-year cost it falls $100 behind Arizona Registered Agent.co.

The agent renews at $149 a year in every state.

What the price covers

  • Filing with the state
  • A fifty-state service

Marks in its favor

  • $199 plus the state fee
  • Any state at one fee

Where it loses points

  • The agent renews at $149, $50 higher than Arizona Registered Agent.co
In-state service

3. AZ Registered Agent.org: best for a local filer

Service fee $199, renewal $99 a year

Taking third place is AZ Registered Agent.org, where $199 added to the state fee, with the agent covered in year one, then $99 a year.

Its prices equal Arizona Registered Agent.co's, so either is a sound choice.

What the price covers

  • The filing is done for you
  • One year of agent service

Marks in its favor

  • Agent covered for year one
  • $199 to register
  • $99 a year for the agent afterward

Where it loses points

  • Serves only Arizona

The 3 graded picks compared

#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.
Posted prices, read November 13, 2026. The $150 state fee is extra in every row.

How to register in Arizona

  1. Step
    1

    Check whether registration applies

    An LLC formed in another state registers in Arizona before it does business there. Skipping it has a price: Its own claims cannot go to court in Arizona until the registration is made (A.R.S. 29-3902(B)). Its contracts remain valid (A.R.S. 29-3902(C)).

    Where this comes from: Class notes: azcc.gov (October 2026)

  2. Step
    2

    Order a certificate from your home state

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

    Request it close to the filing date.

  3. Step
    3

    Appoint a statutory agent in Arizona

    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.

    Any of our picks covers the role.

    Where this comes from: Class notes: azleg.gov (October 2026)

  4. Step
    4

    Deliver the Foreign Registration Statement

    That filing is the registration, and the state charges $150 for it.

    Where this comes from: Class notes: azcc.gov (October 2026)

  5. Step
    5

    Keep up with Arizona's recurring filing

    Arizona sets no recurring report for foreign LLCs.

What you will pay

StepWho you payCost
Filing to registerTo the state$150
A service, if you use oneService$199 in year one
Three years of state feesTo the state$150
Three-year state total: the filing, plus reports in years two and three, plus any minimum tax. Sources are below.

How the grade worked out

won on tuition over three years (32% of the grade), with right behind.

Paying Arizona Registered Agent.co for three years adds up to $397, which is $100 below the Mainstay Filing total.

Arizona questions

How much does Arizona charge a foreign LLC to register?

$150 at the state office. Service fees: $199.

Which form do I file to register?

The form to use is the Foreign Registration Statement (Form L025), and the Arizona Corporation Commission, Corporations Division is where it goes.

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 claims cannot go to court in Arizona until the registration is made (A.R.S. 29-3902(B)). Its contracts remain valid (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?

We would pick Arizona Registered Agent.co, because it files the Arizona registration for $199 and includes a year of agent service, then renews at $99. After that, Mainstay Filing and AZ Registered Agent.org.

Keep studying

Class references

  1. Want to see Ariz for yourself? Open azleg.gov. We confirmed that page in August 2026 before writing the lesson.
  2. Want to see Arizona formation fee: Filing fee, official source for yourself? Open azcc.gov. We confirmed that page in October 2026 before writing the lesson.
  3. Want to see Arizona registered agent statute for yourself? Open azleg.gov. We confirmed that page in October 2026 before writing the lesson.
  4. Want to see Arizona Corporation Commission, LLC forms for yourself? Open azcc.gov. We confirmed that page in October 2026 before writing the lesson.
  5. Want to see Form L025 instructions for yourself? Open azcc.gov. We confirmed that page in October 2026 before writing the lesson.
  6. Want to see A.R.S. 29-3903, registration of foreign LLC for yourself? Open azleg.gov. We confirmed that page in October 2026 before writing the lesson.
  7. Want to see A.R.S. 29-3905, activities that are not doing business for yourself? Open azleg.gov. We confirmed that page in October 2026 before writing the lesson.
  8. Want to see Arizona Corporation Commission FAQs for yourself? Open azcc.gov. We confirmed that page in October 2026 before writing the lesson.
  9. Want to see A.R.S. 29-3902, registration to do business for yourself? Open azleg.gov. We confirmed that page in November 2026 before writing the lesson.
  10. Arizona Registered Agent.co pricing page: opened and read on November 13, 2026
  11. Mainstay Filing Arizona service page: opened and read on November 13, 2026
  12. AZ Registered Agent.org pricing page: opened and read on November 13, 2026