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Step-by-step guide · New Mexico

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

Start with this 2026 ranking of foreign registration services in New Mexico: NM Registered Agent.org ($199), New Mexico Registered Agent.co ($199) and Mainstay Filing ($199), in that order. Registration at the state costs $100 for every filer, and three years of service fees add $397 to $497.
Written by the Simple Filing Guide editorial team

The short route

What you pay the state
$100
Certificate of good standing?
Yes, it is required (30 days old at the most)
After you register
No recurring filing
Where to start
NM Registered Agent.org, New Mexico Registered Agent.co then Mainstay Filing

Where to start in New Mexico

Want to know why this order? See how we rank.

#1 Number 1

1. NM Registered Agent.org: best for a lean registration

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

NM Registered Agent.org takes the top spot, since $199 files the registration, and the agent renews at $99 each year.

Cost decides this one, since the three-year bill is lower than at Mainstay Filing.

Checklist: what is included
  • State registration completed
  • A year of agent service to start
What works
  • $99 a year from year two
  • Adds $199 to the state fee
  • A free agent year at the start
Gaps
  • Nothing outside this state
Open NM Registered Agent.org Partner link. We may earn money if you buy.
#2 One-state pick

2. New Mexico Registered Agent.co: best for another local choice

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

Next, consider New Mexico Registered Agent.co: $199 files the registration, and the agent renews at $99 each year.

Both publish identical prices, so pick whichever you like better.

Checklist: what is included
  • State registration completed
  • A year of agent service to start
What works
  • $99 a year from year two
  • A free agent year at the start
  • Adds $199 to the state fee
Gaps
  • Nothing outside this state
Open New Mexico Registered Agent.co Partner link. We may earn money if you buy.
#3 All fifty states

3. Mainstay Filing: best for LLCs adding more states

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

In third place, Mainstay Filing, where registering costs $199, with no registered agent charge until year two.

Check the gap: it costs $100 more than NM Registered Agent.org over three years, and cost carries the most weight.

Once the free year ends, the registered agent renews at $149.

Checklist: what is included
  • State registration done for you
  • Registered agent, the first year is free
  • No change in price by state
What works
  • $199 on top of New Mexico's fee
  • Agent costs nothing the first year
  • One fee for any state
Gaps
  • Pay $50 more a year for the agent
Open Mainstay Filing Partner link. We may earn money if you buy.

Compare the picks

#CompanyYear-one costYearly afterTotal for 3 yearsIncluded
1 NM Registered Agent.org $199$99/yr$397state registration completed; A year of agent service to start Open NM Registered Agent.org Partner link. We may earn money if you buy.
2 New Mexico Registered Agent.co $199$99/yr$397state registration completed; A year of agent service to start Open New Mexico Registered Agent.co Partner link. We may earn money if you buy.
3 Mainstay Filing $199$149/yr$497state registration done for you; registered agent, the first year is free; no change in price by state Open Mainstay Filing 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.

Step by step

Does my LLC from another state have to register?

Before an LLC formed elsewhere starts business in New Mexico, it registers.

Doing business unregistered risks unpaid fees covering the unregistered time.

tax.newmexico.gov, last confirmed October 2026 for this guide

What does a foreign registration cost?

Plan on $100 for the state; a service adds $199.

The state will have collected $100 by the end of year three. tax.newmexico.gov, last confirmed October 2026 for this guide

What registers the LLC?

Your LLC is registered once the New Mexico Secretary of State, Business Services Division approves the Foreign LLC Certificate of Registration.

The filing needs certificate of good standing and compliance no older than 30 days.

What does staying registered cost?

The state asks for no follow-up report.

What decided the ranking?

NM Registered Agent.org wins on total for three years, a 37% check.

64% of the score comes from total for three years and filing jobs included.

NM Registered Agent.org totals $397 across three years, which is $100 under Mainstay Filing.

See the scoring

New Mexico registration rules at a glance

RequirementWhat to knowOfficial source
Registration fee $100tax.newmexico.gov, last confirmed October 2026 for this guide
Home-state certificate Yes, it is required, 30 daystax.newmexico.gov, last confirmed October 2026 for this guide
What the state collects in three years $100Added 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

Do both states require an agent?

Most likely yes. One national provider is able to manage your home state and this one together.

How do the three-year costs compare?

NM Registered Agent.org $397; New Mexico Registered Agent.co $397; Mainstay Filing $497 for the services alone.

Where do you get the fees?

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

Do I need to hire a service?

No. You can file with the state yourself; a service saves time and can act as your agent, but nothing makes you hire one.

Is filing part of the service?

All of them do, and the state fee stays identical.

What is the best foreign registration service for New Mexico?

Choose NM Registered Agent.org first, then compare New Mexico Registered Agent.co and Mainstay Filing.

Sources and price pages

  1. nmonesource.com (NMSA 1978, § 53-19-7 and), verified August 2026
  2. sos.nm.gov (New Mexico Secretary of State), verified October 2026
  3. enterprise.sos.nm.gov (SOS Enterprise online filing portal), verified October 2026
  4. api.realfile.rtsclients.com (Business Online Filing Help), verified October 2026
  5. tax.newmexico.gov (Taxation and Revenue Department, who), verified October 2026
  6. nmonesource.com (New Mexico Statutes Annotated 1978), verified November 2026
  7. Prices read November 13, 2026 from the NM Registered Agent.org pricing page
  8. Prices read November 13, 2026 from the New Mexico Registered Agent.co pricing page
  9. Prices read November 13, 2026 from the Mainstay Filing New Mexico service page