A practical guide · New Mexico

3 Best LLC Services in New Mexico (2026), Step by Step

Start with this 2026 ranking of LLC formation services in New Mexico: Mainstay Filing ($199), NM Registered Agent.org ($199) and New Mexico Registered Agent.co ($199), in that order. Whichever you choose, the state charges $50 to file, and the services total $397 to $597 across three years.

Written by the Simple Filing Guide editorial team Checked and updated November 13, 2026

The short route

Formation fee: $50, once, up front
Upkeep: No report
Registered agent: Yes: the state requires it
Where to start: Mainstay Filing, NM Registered Agent.org then New Mexico Registered Agent.co

New Mexico: the ranking

The order follows our five checks: three-year cost first, then what the price covers.

#1 Recommended first

1. Mainstay Filing: best for a single annual invoice

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

Why Mainstay Filing first? Because formation and registered agent service come together for $199 a year, with the EIN application as well.

Compare the price before you commit: NM Registered Agent.org is $200 lower over three years, but it works in New Mexico only.

Checklist: what is included

The formation filing, done
Registered agent for a full year
EIN taken care of
State fees billed as charged

What works

No jump at renewal ($199)
No extra fee to get your EIN
Everything above is included in $199

Gaps

NM Registered Agent.org undercuts its renewal by $100
Fewer jobs covered here

Open Mainstay Filing Partner link. We may earn money if you buy.

#2 New Mexico specialist

2. NM Registered Agent.org: best for tight budgets

$199 at the start, then $99 yearly

NM Registered Agent.org follows since the opening price is $199 with the first agent year included, then $99 annually.

Checklist: what is included

State filing completed
First-year agent

What works

Agent included for the first year
A modest renewal of $99
$199 to get started

Gaps

Add $99 for EIN help

Open NM Registered Agent.org Partner link. We may earn money if you buy.

#3 New Mexico specialist

3. New Mexico Registered Agent.co: best for a low agent renewal

$199 at the start, then $99 yearly

New Mexico Registered Agent.co follows since the opening price is $199 with the first agent year included, then $99 annually.

It charges the same as NM Registered Agent.org, so the order between them is a close call.

Checklist: what is included

State filing completed
First-year agent

What works

A modest renewal of $99
Agent included for the first year
$199 to get started

Gaps

Add $99 for EIN help

Open New Mexico Registered Agent.co Partner link. We may earn money if you buy.

The table

#	Company	Start	At renewal	Three-year cost	Included
1	Mainstay Filing	$199	$199/yr	$597	the formation filing, done; registered agent for a full year; EIN taken care of	Open Mainstay Filing Partner link. We may earn money if you buy.
2	NM Registered Agent.org	$199	$99/yr	$397	state filing completed; First-year agent	Open NM Registered Agent.org Partner link. We may earn money if you buy.
3	New Mexico Registered Agent.co	$199	$99/yr	$397	state filing completed; First-year agent	Open New Mexico Registered Agent.co Partner link. We may earn money if you buy.

Prices as of November 13, 2026; the state's own fees are listed in the checklist below.

The key questions

How much money do I need to set aside?

On your own it is $50. With a service, it is $199 more.

Counting the recurring report, the state's own fees reach $50 by year three. official source nmonesource.com (October 2026) to check

Which form do I file, and where does it go?

File the Articles of Organization with the New Mexico Secretary of State; that single filing creates the LLC.

Check the law: NMSA 1978, § 53-19-7. official source nmonesource.com (October 2026) to check

Is naming a registered agent a legal duty?

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

A New Mexico resident, or a corporation, LLC or partnership formed in New Mexico or authorized there whose place of business is the registered office.

official source nmonesource.com (October 2026) to check

What keeps the LLC in good standing?

No yearly report and no report fee to plan for.

Am I allowed to skip the service?

A service is optional. State fees alone would run $50 across three years.

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

Why is number one first?

Mainstay Filing wins on filing jobs included, a 27% check.

Start with total for three years, then filing jobs included, then three smaller checks.

With no New Mexico report in the picture, coverage barely tips the balance.

See the scoring

New Mexico: formation requirements, cited

Step	What to know	Where it is from
Fee to file the LLC	$50	official source nmonesource.com (October 2026) to check
Registered agent	Yes: the state requires it	official source nmonesource.com (October 2026) to check
State fees across three years	$50	Added from the rows

To check the three-year number, add the formation filing, the next two reports and any minimum tax; costs with no fixed price are not counted.

FAQ

What about the EIN?

Mainstay Filing includes the EIN application. The others charge extra: NM Registered Agent.org $99; New Mexico Registered Agent.co $99.

What do the picks cost over three years?

Three-year costs: Mainstay Filing, $597; NM Registered Agent.org, $397; New Mexico Registered Agent.co, $397 (services only).

What are the numbers based on?

State-set fees come from New Mexico's publications; what services charge comes from the prices they post.

Do I have to use a service?

No. A service charges for labor and the agent role, not for anything the state demands.

What does the LLC owe the state yearly?

No yearly report and no report fee to plan for.

What is the best LLC service for New Mexico?

Mainstay Filing comes first: $199 a year forms the LLC and sets up a registered agent, and the EIN application is part of it. Next, NM Registered Agent.org and New Mexico Registered Agent.co.

Verify these facts

Source for NMSA 1978, § 53-19-7 and: nmonesource.com, August 2026
New Mexico service page from Mainstay Filing, checked November 13, 2026
pricing page from NM Registered Agent.org, checked November 13, 2026
pricing page from New Mexico Registered Agent.co, checked November 13, 2026