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Just the facts · New Mexico

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

In New Mexico for 2026, we like NM Registered Agent.org ($199), Mainstay Filing ($199) and New Mexico Registered Agent.co ($199), ranked from first to last. New Mexico charges $100 to register, and the services add $397 to $497 over three years.
From the LLC Plainly editorial team

Short answer

What the state charges
$100
Need a certificate from home?
Yes, attach it (30 days maximum)
Once you're registered
No follow-up report
Our ranking
NM Registered Agent.org, Mainstay Filing then New Mexico Registered Agent.co

Our New Mexico picks

Ranked best first using the checks on our method page.
Number one

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

Pay $199 now and $99 yearly later, with the state fee extra

Why NM Registered Agent.org? Honestly, registering costs $199 above the state fee and the agent is covered in year one, then $99 a year.

The tiebreaker is cost, and three years here come in under Mainstay Filing.

Your money buys

  • Application sent in for you
  • First-year agent comes with it

The good

  • A free agent year at the start
  • A service fee of $199
  • The agent renews at $99

Trade-offs

  • Your home state needs a different agent
Works in every state

2. Mainstay Filing: best for adding several states

Pay $199 now and $149 yearly later, with the state fee extra

Second place goes to Mainstay Filing, where registration is $199, and the registered agent costs nothing until year two.

Three years here cost $100 above NM Registered Agent.org.

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

Your money buys

  • Application prepared and sent
  • Registered agent, covered for year one
  • No change in price by state

The good

  • No agent charge the first year
  • Fifty states covered
  • Registers you for $199

Trade-offs

  • NM Registered Agent.org charges $50 less to renew the agent
One-state pick

3. New Mexico Registered Agent.co: best for a one-state add-on

Pay $199 now and $99 yearly later, with the state fee extra

New Mexico Registered Agent.co takes third, because registering costs $199 above the state fee and the agent is covered in year one, then $99 a year.

Price for price, it ties NM Registered Agent.org.

Your money buys

  • Application sent in for you
  • First-year agent comes with it

The good

  • A service fee of $199
  • A free agent year at the start
  • The agent renews at $99

Trade-offs

  • Your home state needs a different agent

At a glance

#ServiceYear oneAfter year oneOver three yearsWhat you get
1NM Registered Agent.org$199$99/yr$397application sent in for you; First-year agent comes with itVisit the NM Registered Agent.org sitePartner link. We may earn money if you buy.
2Mainstay Filing$199$149/yr$497application prepared and sent; registered agent, covered for year one; no change in price by stateVisit the Mainstay Filing sitePartner link. We may earn money if you buy.
3New Mexico Registered Agent.co$199$99/yr$397application sent in for you; First-year agent comes with itVisit the New Mexico Registered Agent.co sitePartner link. We may earn money if you buy.
These are service fees only, from each company's prices on November 13, 2026. The state's fees are the same whoever you pick.

Questions and answers

When does my LLC need to register?

Doing business in New Mexico with an LLC formed somewhere else means registering at the start.

Doing business unregistered can bring fees it should have been paying.

check it at tax.newmexico.gov, October 2026

What's the price of foreign registration?

$100 goes to the state, and a service costs $199 on top.

By the end of year three you'll have paid the state $100. check it at tax.newmexico.gov, October 2026

What registers the LLC?

Once the New Mexico Secretary of State, Business Services Division approves the Foreign LLC Certificate of Registration, you're registered.

Attach certificate of good standing and compliance no more than 30 days.

What keeps the registration active?

No repeat filing follows the registration.

Why is the list in this order?

Cost across three years, worth 33%, put NM Registered Agent.org first.

We start with cost across three years, move to work taken off your hands, and finish with three smaller checks.

NM Registered Agent.org's three-year total of $397 undercuts Mainstay Filing by $100.

How we pick

New Mexico: the rules, cited

ItemAmount or ruleWhere we found it
What you pay to register$100check it at tax.newmexico.gov, October 2026
Good standing proofYes, attach it, 30 dayscheck it at tax.newmexico.gov, October 2026
Three-year state total$100Sum of the figures above
Each figure above links to the state's official page. The final line is our addition of the filing, two reports and any minimum tax, and it leaves out variable costs.

A few more

Is one agent enough for both states?

You still need one at home. Mainstay Filing serves both states; a local company serves one.

What does each one cost over three years?

Three-year totals are NM Registered Agent.org, $397; Mainstay Filing, $497; New Mexico Registered Agent.co, $397, with state fees extra.

Can I check these fees?

Every state fee links to its official page. Every service price is read from the company's own site.

Does the state make me use a service?

No law says you must hire anyone.

Who actually submits the registration?

Yes. Every pick prepares and files it, and the state fee is the same no matter who you pick.

Who do you like best in New Mexico?

NM Registered Agent.org comes first: $199 files the registration, and the agent costs $99 each year after. Then come Mainstay Filing and New Mexico Registered Agent.co.

Sources, with dates

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