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Keep it simple · Arizona

3 Best LLC Services in Arizona (2026): Our Honest Take

For LLC formation services in Arizona, here is our 2026 ranking: Mainstay Filing ($199), AZ Registered Agent.org ($199) and Arizona Registered Agent.co ($199). You'll pay the state $50 to file no matter who does it, and the services cost $397 to $597 over three years.
From the LLC Plainly editorial team

The gist

State filing fee
$50, just once
Each year
Nothing to file
Statutory agent
Yes, the law says so
Best first
Mainstay Filing, AZ Registered Agent.org then Arizona Registered Agent.co

Who we like in Arizona

The scoring is spelled out on this page.
Best overall

1. Mainstay Filing: best for keeping things simple

Annual price $199, renewal price $199, state fee on top

Number one is Mainstay Filing, since $199 a year forms your LLC and puts a statutory agent in place, and it throws in the EIN application.

Is it the smaller bill? No. AZ Registered Agent.org costs $200 less over three years, but it only works in Arizona.

Your money buys

  • LLC formation handled for you
  • Statutory agent for the full year
  • EIN handled
  • State fees billed at cost

The good

  • No surprise at renewal: $199
  • Locked at $199 a year
  • They also apply for your EIN

Trade-offs

  • Its renewal is $100 above AZ Registered Agent.org
  • There is no report filing to add
One-state pick

2. AZ Registered Agent.org: best for keeping three-year cost down

$199 to start and $99 to keep going each year

AZ Registered Agent.org comes next since forming your LLC costs $199 and the agent is covered in year one, then $99 a year.

Your money buys

  • Articles filed on your behalf
  • Agent included for year one

The good

  • A free agent year at the start
  • Starts at $199 over the state fee
  • Then $99 a year for the agent

Trade-offs

  • Add $99 if you want help with the EIN
One-state pick

3. Arizona Registered Agent.co: best for companies that stay in one state

$199 to start and $99 to keep going each year

Arizona Registered Agent.co comes next since forming your LLC costs $199 and the agent is covered in year one, then $99 a year.

The same published prices as AZ Registered Agent.org, so go with whichever you like.

Your money buys

  • Articles filed on your behalf
  • Agent included for year one

The good

  • A free agent year at the start
  • Then $99 a year for the agent
  • Starts at $199 over the state fee

Trade-offs

  • Add $99 if you want help with the EIN

How they compare

#CompanyFirst yearAfter year one3 yearsIn the price
1Mainstay Filing$199$199/yr$597LLC formation handled for you; statutory agent for the full year; EIN handledCheck out Mainstay FilingPartner link. We may earn money if you buy.
2AZ Registered Agent.org$199$99/yr$397articles filed on your behalf; agent included for year oneCheck out AZ Registered Agent.orgPartner link. We may earn money if you buy.
3Arizona Registered Agent.co$199$99/yr$397articles filed on your behalf; agent included for year oneCheck out Arizona Registered Agent.coPartner link. We may earn money if you buy.
Company prices from November 13, 2026, before state fees.

The questions, one by one

How much do I need to get an LLC going?

$50 if you file yourself, and $199 more if a service does it.

Three years of state fees will cost you $50. official: azcc.gov, October 2026

  • Publication: a notice runs three times within 60 days unless the statutory agent is in a county of more than 800,000 people, where the Commission posts it instead.

What exactly am I filing?

The Arizona Corporation Commission receives the Articles of Organization (Form L010), and approval is what forms the company.

Where the law says so: Ariz. Rev. Stat. § 29-3201. official: azcc.gov, October 2026

Does my LLC need a statutory agent here?

Every LLC must name a registered agent with an in-state street address.

An Arizona resident, or a corporation or LLC formed in Arizona or authorized to do business there. The appointment takes effect only once the agent accepts it in writing.

official: azleg.gov, October 2026

Does the state bill me later on?

Report cost: zero.

Can I skip the service and file myself?

Nothing stops you from filing yourself, and then the three-year bill is $50 in state fees.

Expect $397 to $597 over three years if you hire.

What put number one on top?

Mainstay Filing leads on work taken off your hands, a 31% check.

Cost across three years (33%) and work taken off your hands (31%) matter most, and three lighter checks sit behind them.

Coverage gives the edge, even though there's no report here.

How we pick

Arizona rules at a glance

ItemAmount or ruleOfficial source
LLC filing fee$50official: azcc.gov, October 2026
Statutory agentYes, the law says soofficial: azleg.gov, October 2026
Paid to the state by year three$50Sum of the figures above
How we get the bottom line: filing + report in year two + report in year three + any minimum tax. Open-ended costs are described in the text only.

More questions

Is the EIN application part of the price?

You'd pay $99 at AZ Registered Agent.org or $99 at Arizona Registered Agent.co, and nothing extra at Mainstay Filing.

What's the three-year total for each?

Mainstay Filing $597; AZ Registered Agent.org $397; Arizona Registered Agent.co $397, with state fees extra.

What are the sources?

What the state charges comes from official Arizona publications; what services charge comes from what they publish.

Can I just do this myself?

You can skip it. The state's fee is the same whichever way you file.

What comes due annually?

Report cost: zero.

Who tops the list in Arizona?

Mainstay Filing is on top because for $199 a year you get the filing and a statutory agent, plus the EIN application; AZ Registered Agent.org and Arizona Registered Agent.co follow.

Official sources and price pages

  1. azleg.gov: the page for Ariz, seen August 2026
  2. azcc.gov: the page for Arizona formation fee: Filing fee, seen October 2026
  3. azleg.gov: the page for Arizona registered agent statute, seen October 2026
  4. We read the Mainstay Filing Arizona service page on November 13, 2026
  5. We read the AZ Registered Agent.org pricing page on November 13, 2026
  6. We read the Arizona Registered Agent.co pricing page on November 13, 2026