LLC Review Desk's 2026 picks for registered agents in Arizona, favorite first, are Mainstay Filing ($149 a year), AZ Registered Agent.org ($99 a year) and Arizona Registered Agent.co ($99 a year). Mainstay Filing is our favorite, because it's $149 a year and the price doesn't climb at renewal, plus papers served on the company get scanned the same business day for free.
By the LLC Review Desk editorial team
Position 1
Number one here
1. Mainstay Filing: best for all fifty states
$149 a year, the same each year
Our score
9.5out of 10
9.5 out of 10
Our favorite is Mainstay Filing, because one plan, $149 a year, follows the company to any state and renews at $149.
Over three years it costs $150 more than AZ Registered Agent.org, and for us the extra things it handles are worth that.
In the price
A street address on the public record in your state
Legal papers served on the company are scanned within the business day at no cost
The first three government mailings you receive each year are scanned for free
Compliance reminders
What we like
Your first three government letters each year, scanned for free
$149 a year and it stays flat
Same-business-day scans of papers served on the company, no charge
Fine for LLCs, corporations, LPs, LLPs and nonprofits
Trade-offs
The agent plan alone is $50 a year more than AZ Registered Agent.org
Unless you buy the formation package, you file the annual report yourself
2. AZ Registered Agent.org: best for the smallest yearly price on this list
$99 a year, the same each year
Our score
9.1out of 10
9.1 out of 10
Coming in second is AZ Registered Agent.org, because it focuses on Arizona at $99 a year and gives you an in-state street address for the registered office.
AZ Registered Agent.org lends your company a street address in the state for its registered office, and papers served on the company are scanned into your account.
In the price
The in-state street address the state requires
The company's served papers show up in your account as scans
What we like
$99 a year, and it stays the same at renewal
Formation comes with a free first agent year
A lower yearly price than Mainstay Filing
Trade-offs
Built for Arizona; other states need another agent
3. Arizona Registered Agent.co: best for Arizona specialists
$99 a year, the same each year
Our score
9.0out of 10
9.0 out of 10
In third place is Arizona Registered Agent.co, because it focuses on Arizona at $99 a year and gives you an in-state street address for the registered office.
Arizona Registered Agent.co takes care of the registered office with a street address in the state and scans everything served there.
Price and features don't set AZ Registered Agent.org apart from Arizona Registered Agent.co; pick the one you like.
In the price
A street address in the state for your registered office
Served documents get scanned and sit in your online account
What we like
$99 yearly, no change at renewal
Forms LLCs too, and the first agent year is free
Mainstay Filing charges more each year
Trade-offs
Built for Arizona; other states need another agent
Every score out of 10 is our editors' call, made with the weighted criteria on How we rank, not a customer rating.
What Arizona registered agents cost in 2026: year one, renewals and three years
Service
First year
Second year
Third year
Three-year total
Same price when you renew
Mainstay Filing
$149
$149
$149
$447
Yes
AZ Registered Agent.org
$99
$99
$99
$297
Yes
Arizona Registered Agent.co
$99
$99
$99
$297
Yes
We took each price from the company's own pages on November 12, 2026. Arizona's own fees stay the same no matter which agent you choose.
Why we put Mainstay Filing first
LLC Review Desk gives three-year cost 29% and filings in the price 29%, then divides 42% among renewal price, state fit and up-front totals. For Arizona, it came down to filings in the price.
Mainstay's plan does more: it scans papers served on the company the same business day, free, and the price is the same in all fifty states, with three government letters a year scanned at no charge. AZ Registered Agent.org costs less, so it's a close race.
You can read every criterion and weight on How we rank.
What Arizona says about the statutory agent (via Arizona Corporation Commission)
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. The law: A.R.S. § 29-3115.
What you still do in Arizona once you have an agent
Good news: Arizona has no yearly LLC report. The one ongoing job is keeping a statutory agent on file, since the state sends its notices there.
Your questions about Arizona registered agents
Do I really need a statutory agent for an Arizona LLC?
You do. Arizona won't accept an LLC without a statutory agent who has a street address in the state, and that name goes on the public record.
What do Arizona registered agents usually cost per year?
Plan on $99 to $149 a year, and each service keeps its price when you renew.
Can I be my own statutory agent?
Sometimes, if you meet the state's rules. 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.
Which registered agents did we review here?
Mainstay Filing ($149 a year), AZ Registered Agent.org ($99 a year) and Arizona Registered Agent.co ($99 a year), with our favorite first.
What does a statutory agent do, exactly?
Think of the statutory agent as the place the court and the state send things: lawsuits, subpoenas and official notices. The agent gets them and hands them over to you, and every plan on this page puts scans in your online account.
Who is the best registered agent for Arizona?
Mainstay Filing, because you pay $149 a year whether you stay in one state or grow, and your first three government letters each year are scanned free.