3 Best LLC Services in New Mexico (2026): The Straight Story
New Mexico, 2026: NM Registered Agent.org ($199), New Mexico Registered Agent.co ($199) and Mainstay Filing ($199) are our picks for LLC formation services, in that order. Here's the money: $50 to the state, $397 to $597 to a service across three years.
Straight from the LLC Straight Talk editorial team
Quick facts
The short of it
What the state charges
$50, one time
After that
Nothing to file
Registered agent
Yes, you have to
Our pick
NM Registered Agent.org, New Mexico Registered Agent.co then Mainstay Filing
Who we'd use in New Mexico
The order comes from our five tests: three-year cost first, then what the price covers.
#1Our top pick
1. NM Registered Agent.org: best for a business that never leaves one state
Year one's $199, later years $99
NM Registered Agent.org wins the top spot: $199 gets your LLC formed, and then the agent's $99 a year.
It beats Mainstay Filing on three-year cost, and cost is the biggest test.
What you get
Your LLC, filed
Agent service covered for year one
Pluses
Year one of the agent comes with it
Renewal's $99
$199 plus the state fee to form
What's not
They charge $99 to apply for your EIN
#2New Mexico specialist
2. New Mexico Registered Agent.co: best for another in-state choice
Year one's $199, later years $99
New Mexico Registered Agent.co comes in second because $199 gets your LLC formed, and then the agent's $99 a year.
Its prices match NM Registered Agent.org exactly, so the order between them's a close call.
What you get
Your LLC, filed
Agent service covered for year one
Pluses
$199 plus the state fee to form
Year one of the agent comes with it
Renewal's $99
What's not
They charge $99 to apply for your EIN
#3Works in all 50 states
3. Mainstay Filing: best for formation and agent for one price
$199 a year, plus the $50 state fee
Mainstay Filing comes in third because formation plus twelve months of registered agent service costs $199, and the EIN application is included.
It ranks lower because three years cost $200 more than NM Registered Agent.org, and price is the biggest test.
What you get
Your formation filing, taken care of
Registered agent for a whole year
EIN application
State fees at cost
Pluses
Renews at $199
One fee: $199 a year
The EIN application's included
What's not
You'll pay $100 more each year than at NM Registered Agent.org
Fewer jobs covered here
Side by side
#
Who
First year
Then
Three-year total
Covers
1
NM Registered Agent.org
$199
$99/yr
$397
Your LLC, filed; agent service covered for year one
The last row is our math, not the state's: filing fee, plus the reports in years two and three, plus any minimum tax. If a cost has no fixed amount, like a newspaper notice, it's explained above and left out.
More questions
Is the EIN application included?
Mainstay Filing includes the EIN application. The others make you pay: NM Registered Agent.org $99; New Mexico Registered Agent.co $99.
What do the picks cost over three years?
NM Registered Agent.org will set you back $397, and New Mexico Registered Agent.co will set you back $397, and Mainstay Filing will set you back $597, services only.
Where do these numbers come from?
Official New Mexico sources back the state side, and posted prices back the service side.
Do I have to use a service?
Not required. The state takes filings from owners.
What does the LLC owe every year?
New Mexico wants no report, so there's nothing to file.
Who should I use for a LLC service in New Mexico?
Go with NM Registered Agent.org first, then look at New Mexico Registered Agent.co and Mainstay Filing.