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Biz Formation Report

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

Foreign registration report · Arizona

3 Best Foreign Registration Services in Arizona (2026)

By the Biz Formation Report editorial team

Biz Formation Report ranks foreign registration services in Arizona for 2026 as Arizona Registered Agent.co ($199), Mainstay Filing ($199) and AZ Registered Agent.org ($199), in that order. Arizona Registered Agent.co earns the top grade: $199 plus the state fee, one year of statutory agent service included, then $99 a year for the agent.

No.1

Best here

1. Arizona Registered Agent.co: best for companies adding Arizona alone

Score9.2out of 10
$199 service fee and the state fee on top; the agent is $99 annually from year two

Top grade, Arizona Registered Agent.co: the Arizona registration for $199 with year-one agent service included, then $99 a year.

The plan seats the company at an in-state street address and posts scans of papers served there to your online account.

It beats Mainstay Filing on three-year cost.

What you get

  • Registration prepared and filed
  • The first year as your statutory agent

Good

  • $199 service fee, state fee added
  • First-year statutory agent service is part of the price
  • $99 a year for the agent from year two

Weak spots

  • Serves Arizona only; the home state still needs its own agent
  • The EIN application costs $99 extra
Visit Arizona Registered Agent.coPartner link. We may earn money if you buy.
Read the Arizona Registered Agent.co review
No.2

One price, any state

2. Mainstay Filing: best for companies registered in several states

Score8.7out of 10
$199 plus the state fee, then $149 a year for the agent from year two

Second grade, Mainstay Filing: $199 added to the state fee in any state, with a year of statutory agent service included.

The agent is free in year one, then costs $149 a year, whatever state the company registers in.

Arizona Registered Agent.co is $100 cheaper across three years, and that difference lowers Mainstay Filing's cost grade.

What you get

  • Registration prepared and filed on your behalf
  • Service of process scanned and uploaded within one business day, free

Good

  • $199 service fee plus the state's fee
  • One price across all fifty states
  • Served papers scanned within the same business day, free

Weak spots

  • The agent renews at $149, $50 more than Arizona Registered Agent.co
Visit Mainstay FilingPartner link. We may earn money if you buy.
Read the Mainstay Filing review
No.3

Low renewal

3. AZ Registered Agent.org: best for registering in Arizona only

Score8.6out of 10
$199 added to the state's fee; $99 a year for the agent after that

Third grade, AZ Registered Agent.org: the Arizona registration for $199 with year-one agent service included, then $99 a year.

The plan seats the company at an in-state street address and posts scans of papers served there to your online account.

Arizona Registered Agent.co and AZ Registered Agent.org publish the same prices and plan features, so the grades are close and either is a sound pick.

What you get

  • Registration prepared and filed
  • Statutory agent service for year one

Good

  • Agent at $99 a year after year one
  • A $199 registration price, state fee extra
  • First-year statutory agent service is part of the price

Weak spots

  • Serves Arizona only; the home state still needs its own agent
  • The EIN application costs $99 extra
Visit AZ Registered Agent.orgPartner link. We may earn money if you buy.
Read the AZ Registered Agent.org review

Summary of the 3 grades

RankProviderGradeService feeYear twoBest fitSite
1Arizona Registered Agent.co9.2$199$99/yrThe lowest agent renewal we rank hereVisit Arizona Registered Agent.coPartner link. We may earn money if you buy.
2Mainstay Filing8.7$199$149/yrCompanies with a presence in several statesVisit Mainstay FilingPartner link. We may earn money if you buy.
3AZ Registered Agent.org8.6$199$99/yrThe lowest agent renewal we rank hereVisit AZ Registered Agent.orgPartner link. We may earn money if you buy.

Grades out of 10 are Biz Formation Report's own editorial judgment, based on the criteria explained on How we rank. They are not customer ratings.

Arizona foreign registration service prices, 2026: year one, renewal and three-year outlay

ProviderYear 1Year 2Year 3Three-year outlayYear-one agent covered
Arizona Registered Agent.co$199$99$99$397Included
Mainstay Filing$199$149$149$497Not stated
AZ Registered Agent.org$199$99$99$397Included

All prices were taken from the companies' own websites on November 12, 2026. Arizona's $150 registration fee is payable on top of each row and is not part of these totals.

The basis for the order

The grading method assigns 32% to three-year bill and 32% to what the money buys, with renewal handling, local rules match and pricing openness taking 36%. For Arizona, three-year bill decided it.

Total outlay with Arizona Registered Agent.co over three years: $397, $100 less than Mainstay Filing. Both providers include the first agent year, so the renewal price set the order.

Every criterion and weight is listed on How we rank.

Arizona foreign LLC registration: fee, document and filing office

To register, the outside company submits the Foreign Registration Statement (Form L025) to the Arizona Corporation Commission, Corporations Division, with a state fee of $150. Arizona also wants certificate of existence or good standing, plus a certified copy of the organizational documents, dated within 60 days of the filing.

Arizona requires no yearly report from foreign LLCs.

Documents to have on hand

  • Certificate of existence or good standing, plus a certified copy of the organizational documents, dated within 60 days of filing.
  • The legal name as recorded in the home state, and the date of formation.
  • An in-state statutory agent; any provider in this report can serve.
  • Payment of the $150 state fee with the filing.

The cost of skipping Arizona registration

An unregistered foreign LLC has no right to sue in Arizona courts until it registers (A.R.S. 29-3902(B)). Its contracts remain enforceable (A.R.S. 29-3902(C)).

Arizona foreign registration service: common questions

Must an LLC from another state register with Arizona?

Yes, as soon as it transacts business there. Until then it has no standing to bring a lawsuit in the state's courts.

How much does Arizona foreign registration cost?

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

Which form handles foreign registration with Arizona?

The state names the form in the facts above; it is sent to the Arizona Corporation Commission, Corporations Division.

Does Arizona demand proof of good standing from the home state?

Yes. The filing needs certificate of existence or good standing, plus a certified copy of the organizational documents, issued no more than 60 days ago.

Is a statutory agent still needed after foreign registration?

Yes. A statutory agent with a street address in the state has to remain on file.

What is the best foreign registration service for Arizona?

Arizona Registered Agent.co: $199 beyond the state fee to register in Arizona, agent renewing at $99.

Related pages

Source notes

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