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Plain CharterLLC questions, short answers.

Answered simply · New Mexico

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

Our 2026 answer for New Mexico: NM Registered Agent.org ($199), Mainstay Filing ($199) and New Mexico Registered Agent.co ($199), best first. On top of the $100 state fee, service fees come to $397 to $497 over three years.

By the Plain Charter editorial team ·

Short version

What the state charges
$100
Good standing needed?
Yes, needed (30 days, no older)
After registering
No recurring report
Our picks, in order
NM Registered Agent.org, Mainstay Filing then New Mexico Registered Agent.co

Who to use in New Mexico

Our order, explained on how we choose.
1We'd start here

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

First year $199, then $99 a year

NM Registered Agent.org leads our list: it charges $199 to register with a first year of agent service, then $99 a year.

Cost decides it: three years here come in under Mainstay Filing.

The price covers

  • The New Mexico registration filing
  • A year of agent service

Upsides

  • Agent renews at $99
  • $199 to register
  • No agent fee in year one

What to weigh

  • A second provider for the home state
Visit NM Registered Agent.orgPartner link. We may earn money if you buy.
2Most included

2. Mainstay Filing: best for one price in any state

First year $199, then $149 a year

Mainstay Filing ranks second, because you pay $199 to register and nothing for the registered agent until year two.

NM Registered Agent.org saves $100 over three years, enough to rank above it.

After the free year, the registered agent renews at $149 a year.

The price covers

  • The registration filing
  • Registered agent, year one included
  • Available in all fifty states

Upsides

  • First agent year free
  • $199 over the state fee
  • Ready for the next state

What to weigh

  • Higher agent renewal ($149)
Visit Mainstay FilingPartner link. We may earn money if you buy.
3New Mexico only

3. New Mexico Registered Agent.co: best for one extra state

First year $199, then $99 a year

New Mexico Registered Agent.co is next: it charges $199 to register with a first year of agent service, then $99 a year.

NM Registered Agent.org charges the same, so this one is a close second.

The price covers

  • The New Mexico registration filing
  • A year of agent service

Upsides

  • $199 to register
  • Agent renews at $99
  • No agent fee in year one

What to weigh

  • A second provider for the home state
Visit New Mexico Registered Agent.coPartner link. We may earn money if you buy.

Compare at a glance

#ServiceYear oneEach year after3-year costIn the price
1NM Registered Agent.org$199$99/yr$397The New Mexico registration filing; A year of agent serviceVisit NM Registered Agent.orgPartner link. We may earn money if you buy.
2Mainstay Filing$199$149/yr$497the registration filing; registered agent, year one included; available in all fifty statesVisit Mainstay FilingPartner link. We may earn money if you buy.
3New Mexico Registered Agent.co$199$99/yr$397The New Mexico registration filing; A year of agent serviceVisit New Mexico Registered Agent.coPartner link. We may earn money if you buy.
Read from company pricing on November 12, 2026; three years means the first year plus two renewals.

What owners ask

When is registration required?

Doing business in New Mexico with an LLC from elsewhere means registering first.

Doing business unregistered risks back fees for the unregistered period.

tax.newmexico.gov (October 2026)

What does registering cost?

$100 to the state, plus $199 with a service.

By year three the state will have collected $100. tax.newmexico.gov (October 2026)

What gets filed?

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

Send along certificate of good standing and compliance at most 30 days.

Any ongoing fees?

No recurring report for foreign LLCs here.

What put the first pick first?

It comes down to three-year cost, where NM Registered Agent.org is strongest.

What we weigh most: three-year cost (35%) and what the price takes off your plate (30%). Three smaller criteria break close calls.

Three years with NM Registered Agent.org: $397. Mainstay Filing is $100 more.

Our full method

Requirements, cited

RuleAmount or ruleFrom
State filing fee$100tax.newmexico.gov (October 2026)
Home-state documentYes, needed, 30 daystax.newmexico.gov (October 2026)
Paid to the state by year 3$100Total of these fees
Filing fee, the reports in years two and three, then any minimum tax: that is the three-year line.

People also ask

Do I still need an agent in my home state?

Yes. The home state keeps its own agent requirement; Mainstay Filing can cover both states with one account.

What is the three-year cost of each?

NM Registered Agent.org $397, Mainstay Filing $497 and New Mexico Registered Agent.co $397, state fees extra.

Are the fees official?

Official schedules for state fees, company pricing for service fees, all dated on this page.

Do I need to hire a service?

No law requires one. A service is a convenience.

Can a service file the registration for me?

Each of our picks prepares and files it; the state fee stays the same.

Which one should I hire in New Mexico?

We rank NM Registered Agent.org first on three-year cost, with Mainstay Filing and New Mexico Registered Agent.co behind it.

Sources for this page

  1. August 2026: NMSA 1978, § 53-19-7 and, nmonesource.com
  2. October 2026: New Mexico Secretary of State, sos.nm.gov
  3. October 2026: SOS Enterprise online filing portal, enterprise.sos.nm.gov
  4. October 2026: Business Online Filing Help, api.realfile.rtsclients.com
  5. October 2026: Taxation and Revenue Department, who, tax.newmexico.gov
  6. November 2026: New Mexico Statutes Annotated 1978, nmonesource.com
  7. NM Registered Agent.org pricing page, prices as of November 12, 2026
  8. Mainstay Filing New Mexico service page, prices as of November 12, 2026
  9. New Mexico Registered Agent.co pricing page, prices as of November 12, 2026