2025 BOI rule update US entities are now exempt. Check if you still need to file →
$0
Federal EIN
IRS fee
Same-day
SS-4 filing
available
ITIN
Non-US founders
supported
NEW
State tax ID
if separate required
SOC 2 Type II · 2025 report 4.9 · 8,200+ reviews E&O Insured · carrier on request 51 Jurisdictions 220,000+ Formed
See disclosures + carrier names →
New Mexico EIN application, 2026
EIN in New Mexico · same-day SS-4

Get an EIN for your New Mexico business

A federal Employer Identification Number (EIN) is the IRS tax ID your New Mexico business uses for banking, payroll, and tax filing. The IRS issues EINs free · application takes 10 minutes online with immediate issuance for US founders. International founders apply by fax or mail. After your EIN, you also need to register with the New Mexico Taxation and Revenue via the CRS (Combined Reporting System) registration.

New Mexico EIN + state tax accounts at a glance

Federal EIN cost$0 (IRS direct)
Issuance timeImmediate (online for US founders)
New Mexico revenue agencyNew Mexico Taxation and Revenue
State tax registration formCRS (Combined Reporting System) registration
Sales tax permit needed?Yes · register for sales tax permit.
State withholding account?Yes · register for state withholding account.
File.Business service fee$0

How to get an EIN in New Mexico: step by step

  1. Form your business entity first. Your New Mexico LLC, corporation, or other entity must exist before applying for an EIN. Form an LLC in New Mexico or form a corporation if needed.
  2. Pick your responsible party. The IRS requires one individual with substantial control over the entity (typically an owner with at least 25% interest) to be listed on Form SS-4.
  3. Apply online at irs.gov. US founders with a valid SSN or ITIN get the EIN immediately. The application is free and takes about 10 minutes.
  4. International founders: apply by fax or mail. Without an SSN or ITIN, the online system will not work. Fax Form SS-4 (typically 4 business days) or mail it (4 to 6 weeks). ITIN vs EIN explained.
  5. Register with the New Mexico Taxation and Revenue. Use the CRS (Combined Reporting System) registration to get your state-level tax accounts in New Mexico.
  6. Open a business bank account. New Mexico banks commonly used include New Mexico Bank & Trust, US Bank, Wells Fargo.

Skip the paperwork · we get your New Mexico EIN

We prepare Form SS-4, file with the IRS, and also handle your state-level registration with the New Mexico Taxation and Revenue. $0 service fee. International founders supported (we file by fax to get your EIN within a week, faster than mail).

Start my New Mexico EIN

New Mexico state tax accounts you also need

An IRS EIN is federal-only. To operate in New Mexico, you typically also need:

  • State tax ID: Register with New Mexico Taxation and Revenue using CRS (Combined Reporting System) registration.
  • Sales tax permit: Yes · register for sales tax permit. Sales tax registration overview.
  • State withholding account: Yes · register for state withholding account.
  • Unemployment insurance account: Required if you have employees in New Mexico.
  • Workers compensation insurance: Required if you have employees. Business insurance overview.

New Mexico EIN FAQ

How much does an EIN cost in New Mexico?

The IRS issues EINs free. Anyone charging you for the EIN itself is upselling. File.Business charges $0 service fee whether you have us file it or you do it yourself.

How long does the EIN take to receive?

US founders applying online: immediate. International founders applying by fax: typically 4 business days. By mail: 4 to 6 weeks.

Can I get an EIN without an SSN?

Yes. International founders apply with Form SS-4 by fax or mail. The IRS accepts foreign passport details as identification.

Do I need a separate New Mexico state tax ID?

Yes, in most cases. The New Mexico Taxation and Revenue requires a state-level registration via CRS (Combined Reporting System) registration for businesses operating in New Mexico.

Can I use my EIN to open a New Mexico business bank account?

Yes, your EIN is required for business banking. New Mexico banks commonly used include New Mexico Bank & Trust, US Bank, Wells Fargo.

$129/yr Compliance Annual Filings · penalty-free

On the $129/yr Compliance Annual Filings plan, we cover state late fees.

When you autofile your annual report through the $129/yr plan and we miss the deadline, we pay the state's late fee. The guarantee applies to that specific plan and the filings it includes. Other File.Business services are billed at the prices on this page.

See compliance plans →
File.Business is a private business filing and compliance service. We are not a government agency and are not affiliated with any Secretary of State office. You may file directly with the appropriate state agency. SOC 2 Type II audited. 220,000+ businesses formed since 2017.
$0 + state feeStart my business