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The Formation Desk

Rankings of registered agents, LLC formation and foreign registration services in all 50 states.

Foreign registration picks · Arizona

3 Best Foreign Registration Services in Arizona (2026)

The The Formation Desk call for foreign registration services in Arizona in 2026: Mainstay Filing ($199), AZ Registered Agent.org ($199) and Arizona Registered Agent.co ($199), in that order. Mainstay Filing takes the call: $199 on top of state fees in any state, with the first year of statutory agent service included.
Written by The Formation Desk editorial team
1
Our top pick in Arizona

1. Mainstay Filing: best for companies working in more than one state

$199 plus the state fee, then the agent at $149 a year from year two

Editorial score 9.3 out of 10

The desk picks Mainstay Filing: $199 plus the state's own fee, the statutory agent free for year one and the same price in every state.

The first agent year is free, and after that the agent runs $149 a year, in any state.

Over three years Mainstay runs $100 more than AZ Registered Agent.org, and the desk thinks the wider coverage is worth it.

In the price

  • Your foreign registration, handled
  • Free scans of service of process, uploaded the same business day

Strengths

  • Free scans of served papers on the same business day
  • $199 service fee, state fee on top
  • Same price in all fifty states

Cons

  • Agent renewal of $149 is $50 above AZ Registered Agent.org
Visit Mainstay FilingPartner link. We may earn money if you buy. Mainstay Filing up close
2
Best for an Arizona-only company

2. AZ Registered Agent.org: best for adding only Arizona

$199 with the state's fee added; agent renewal at $99

Editorial score 9.0 out of 10

Runner-up, AZ Registered Agent.org: the Arizona registration for $199, first agent year included, then $99 yearly.

You get an in-state street address as the registered office, and papers served there are scanned into your account.

In the price

  • The registration filing
  • Statutory agent service for year one

Strengths

  • Statutory agent service for year one is covered
  • $99 a year for the agent from year two
  • Registration at $199 before state fees

Cons

  • Arizona only; your home state needs its own agent
  • EIN application will cost you $99 more
Visit AZ Registered Agent.orgPartner link. We may earn money if you buy. AZ Registered Agent.org up close
3
Best for an Arizona-only company

3. Arizona Registered Agent.co: best for Arizona registrations only

$199 for the service, state fee on top; agent $99 a year after year one

Editorial score 8.8 out of 10

Third, Arizona Registered Agent.co: the Arizona registration for $199, first agent year included, then $99 yearly.

You get an in-state street address as the registered office, and papers served there are scanned into your account.

On price and features there is nothing between AZ Registered Agent.org and Arizona Registered Agent.co, which makes the order a close call.

In the price

  • The registration filing
  • Year-one statutory agent service

Strengths

  • Statutory agent service for year one is covered
  • The agent costs $99 after year one
  • A $199 registration price, state fee on top

Cons

  • Arizona only; your home state needs its own agent
  • EIN application will cost you $99 more
Visit Arizona Registered Agent.coPartner link. We may earn money if you buy. Arizona Registered Agent.co up close

The desk's 3 picks in brief

Pick Service Desk score Service fee Year two Good for Visit
1 Mainstay Filing 9.3 $199 $149/yr Companies doing business in several states Visit Mainstay FilingPartner link. We may earn money if you buy.
2 AZ Registered Agent.org 9.0 $199 $99/yr The lowest agent renewal we rank here Visit AZ Registered Agent.orgPartner link. We may earn money if you buy.
3 Arizona Registered Agent.co 8.8 $199 $99/yr The lowest agent renewal we rank here Visit Arizona Registered Agent.coPartner link. We may earn money if you buy.

The Formation Desk sets every score out of 10 itself from the weighted criteria on How we rank; customers do not rate anything.

What a Arizona foreign registration service costs in 2026: year one, renewal and the three-year bill

Service Year one Year two Year three Bill over three years Agent covered in year one
Mainstay Filing $199 $149 $149 $497 Not stated
AZ Registered Agent.org $199 $99 $99 $397 Included
Arizona Registered Agent.co $199 $99 $99 $397 Included

Every price here was read off the company's own pages on November 12, 2026. Arizona's $150 registration fee comes on top of every row and is left out of these totals.

Why Mainstay Filing is the pick

The Formation Desk counts spend over three years and work the price removes for 33% each; what renewal looks like, fit with the state and plain price display make up the other 34%. What tipped Arizona: work the price removes.

Foreign registration means two states, and one provider at one price in both won on coverage, ahead of AZ Registered Agent.org.

The full criteria and weights are on How we rank.

Registering a foreign LLC in Arizona: fee, form and who gets it

To register, the company files the Foreign Registration Statement (Form L025) with the Arizona Corporation Commission, Corporations Division and pays the state's $150. Arizona also wants certificate of existence or good standing, plus a certified copy of the organizational documents, issued within 60 days of the filing.

Arizona asks nothing yearly of foreign LLCs.

What to pull together first

  • Certificate of existence or good standing, plus a certified copy of the organizational documents, issued in the 60 days before you file.
  • The company name exactly as the home state spells it, and when it was formed.
  • An in-state statutory agent; any service the desk picked can fill that seat.
  • $150 for the state, paid when you file.

What it costs to ignore Arizona registration

Until it registers, an outside LLC has no right to sue in Arizona courts (A.R.S. 29-3902(B)). The contracts it signs stay good (A.R.S. 29-3902(C)).

Arizona foreign registration service: reader questions

Does an LLC from elsewhere have to register to operate in Arizona?

Yes, once it starts doing business there. Until it registers it cannot sue in the state's courts.

What will foreign registration cost you in Arizona?

$150 goes to the state and $199 to the service.

What does Arizona call its foreign registration form?

It goes to the Arizona Corporation Commission, Corporations Division, and the form's title is on the facts line above.

Will Arizona ask for something from your home state?

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

Do you still need a statutory agent after you register?

Yes. Keep a statutory agent with a street address in the state on file.

Who is our pick for foreign registration in Arizona?

Mainstay Filing, since it files the Arizona registration for $199 and serves as your statutory agent, free in year one, then $149 a year.

Keep reading

Where the numbers came from

  1. Ariz. Rev. Stat. § 29-3201, last checked August 2026
  2. Arizona formation fee: Filing fee, official source, last checked October 2026
  3. Arizona registered agent statute, last checked October 2026
  4. Arizona Corporation Commission, LLC forms, last checked October 2026
  5. Form L025 instructions, last checked October 2026
  6. A.R.S. 29-3903, registration of foreign LLC, last checked October 2026
  7. A.R.S. 29-3905, activities that are not doing business, last checked October 2026
  8. Arizona Corporation Commission FAQs, last checked October 2026
  9. A.R.S. 29-3902, registration to do business, last checked November 2026
  10. Mainstay Filing: Arizona service page, as of November 12, 2026
  11. AZ Registered Agent.org: pricing and service pages, as of November 12, 2026
  12. Arizona Registered Agent.co: pricing and service pages, as of November 12, 2026