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3 Best Foreign Registration Services in Arizona (2026): Who to Ask First

Ask about AZ Registered Agent.org ($199), Mainstay Filing ($199) and Arizona Registered Agent.co ($199), in that order, when you need foreign registration services in Arizona in 2026. The state fee is $150, the same for everyone, and three years of service fees run $397 to $497.

Answered by the Ask About LLC editorial team ·

The short answers

State fee to register
$150
Do you bring a certificate from home?
Yes (60 days old at most)
Afterward
Nothing to file
Our pick
AZ Registered Agent.org, Mainstay Filing then Arizona Registered Agent.co

Who should you ask in Arizona?

Prices come from each company's own pricing. Here is how we choose.

1Ask this one first

1. AZ Registered Agent.org: best for adding only this state

$199 plus the state fee, then $99 a year

Why AZ Registered Agent.org at the top? Registering costs $199 over the state fee, with the agent covered in year one, then $99 a year.

Put the totals side by side and this one is lower than Mainstay Filing; cost has the heaviest weight in our scoring.

What the price covers

  • Arizona registration filing
  • Agent included in year one

Good news

  • A renewal of $99
  • Adds $199 to the state fee
  • First-year agent service is covered

The catch

  • Nothing beyond this state
Ask AZ Registered Agent.org directlyPartner link. We may earn money if you buy.
2Works in every state

2. Mainstay Filing: best for adding a third or fourth state

$199 plus the state fee, then $149 a year

Mainstay Filing is the second answer because the fee is $199 in every state, and the first statutory agent year is included.

AZ Registered Agent.org adds up to $100 less over three years, enough to earn the better spot.

The statutory agent is free in year one and $149 a year after, in any state.

What the price covers

  • The registration filing
  • The same price in any state

Good news

  • $199 on top of Arizona's fee
  • Ready for the next state you add

The catch

  • Renewal lands $50 over AZ Registered Agent.org
Ask Mainstay Filing directlyPartner link. We may earn money if you buy.
3Arizona only

3. Arizona Registered Agent.co: best for another local choice

$199 plus the state fee, then $99 a year

Arizona Registered Agent.co takes third place: registering costs $199 over the state fee, with the agent covered in year one, then $99 a year.

It charges the same as AZ Registered Agent.org, which makes the order between them a close call.

What the price covers

  • Arizona registration filing
  • Agent included in year one

Good news

  • A renewal of $99
  • First-year agent service is covered
  • Adds $199 to the state fee

The catch

  • Nothing beyond this state
Ask Arizona Registered Agent.co directlyPartner link. We may earn money if you buy.

The picks side by side

#WhoYear oneEvery year afterThree years in allWhat the price covers
1AZ Registered Agent.org$199$99/yr$397arizona registration filing; agent included in year oneAsk AZ Registered Agent.org directly
Partner link. We may earn money if you buy.
2Mainstay Filing$199$149/yr$497the registration filing; the same price in any stateAsk Mainstay Filing directly
Partner link. We may earn money if you buy.
3Arizona Registered Agent.co$199$99/yr$397arizona registration filing; agent included in year oneAsk Arizona Registered Agent.co directly
Partner link. We may earn money if you buy.
Service fees only, from each company's prices on November 13, 2026. State fees are the same whichever you pick.

Questions owners ask

Does my LLC from another state have to register?

Registration comes first for an out-of-state LLC that plans to operate in Arizona.

Skip it and the LLC may face it cannot sue in Arizona courts until it registers (A.R.S. 29-3902(B)).

azcc.gov, read in October 2026 for this answer

How much does registration cost?

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

By year three the state will have collected $150. azcc.gov, read in October 2026 for this answer

Which form do I file, and with whom?

Send the Foreign Registration Statement (Form L025) to the Arizona Corporation Commission, Corporations Division; the registration is complete when it accepts the filing.

Attach certificate of existence or good standing, plus a certified copy of the organizational documents issued within the last 60 days.

What do I owe once the LLC is registered?

Foreign LLCs file no recurring report here.

What put number one on top?

AZ Registered Agent.org does best on what you pay over three years, which carries 33% of our score.

We weigh five questions: what you pay over three years (33%), chores the price takes care of (29%), answers on the price page (14%), what happens at renewal (13%) and room to add states (11%).

Three years at AZ Registered Agent.org cost $397, $100 less than Mainstay Filing.

See the five questions

Arizona: the registration checklist

QuestionThe answerOfficial source
Registration fee$150azcc.gov, read in October 2026 for this answer
Certificate from homeYes, 60 daysazcc.gov, read in October 2026 for this answer
What the state collects in three years$150The rows above, added up
Every line above points to the state's own page. The total under them is ours, and it covers the filing, two reports and any minimum tax, nothing that varies by newspaper or county.

Still wondering?

Do I still need an agent in my home state?

Yes, and the two states do not share a rule book. Mainstay Filing works in both, so one account can cover the home state and this one.

What do the picks cost over three years?

For three years you would pay $397 at AZ Registered Agent.org, $497 at Mainstay Filing, $397 at Arizona Registered Agent.co, before state fees.

Where do these numbers come from?

Official Arizona sources back the state side, and posted company prices back the service side.

Does the law require a service?

Hiring help is a convenience you pay for, never a legal duty.

Will a service file the registration for me?

Yes, filing is part of what each company on this page sells, and the state's fee is identical whoever sends it.

Who should I ask first about a foreign registration service in Arizona?

AZ Registered Agent.org comes first: $199 gets the registration filed, and the agent renews at $99. Next are Mainstay Filing and Arizona Registered Agent.co.

Where did we look this up?

  1. Our answer on Ariz rests on azleg.gov, a page we confirmed August 2026 and still point you to
  2. Our answer on Arizona formation fee: Filing fee rests on azcc.gov, a page we confirmed October 2026 and still point you to
  3. Our answer on Arizona registered agent statute rests on azleg.gov, a page we confirmed October 2026 and still point you to
  4. Our answer on Arizona Corporation Commission, LLC forms rests on azcc.gov, a page we confirmed October 2026 and still point you to
  5. Our answer on Form L025 instructions rests on azcc.gov, a page we confirmed October 2026 and still point you to
  6. Our answer on A.R.S. 29-3903, registration of foreign rests on azleg.gov, a page we confirmed October 2026 and still point you to
  7. Our answer on A.R.S. 29-3905, activities that are rests on azleg.gov, a page we confirmed October 2026 and still point you to
  8. Our answer on Arizona Corporation Commission FAQs rests on azcc.gov, a page we confirmed October 2026 and still point you to
  9. Our answer on A.R.S. 29-3902, registration to do rests on azleg.gov, a page we confirmed November 2026 and still point you to
  10. AZ Registered Agent.org pricing page, read November 13, 2026
  11. Mainstay Filing Arizona service page, read November 13, 2026
  12. Arizona Registered Agent.co pricing page, read November 13, 2026