Single-Member LLC in New Mexico: 2026 Guide
A single-member LLC in New Mexico is an LLC with one owner, created by filing Articles of Organization with the New Mexico Secretary of State through its Business Filing System. The IRS treats it as a disregarded entity by default, so profit is reported on the owner's personal return, while New Mexico's gross receipts tax applies to most sales.
Quick Answer
- Formed with
- New Mexico Secretary of State, Business Services Division
- Document
- Articles of Organization, filed online through the NM Business Filing System
- Federal tax status
- Disregarded entity by default (IRS)
- Registered agent
- Required - New Mexico street address
- State sales tax
- New Mexico levies gross receipts tax rather than a classic sales tax
- Filing fee
- Set by the Secretary of State - confirm on the Business Services site
What a Single-Member LLC Is in New Mexico
A single-member LLC is an ordinary limited liability company that happens to have one owner. New Mexico does not maintain a separate "SMLLC" filing type: you file the same Articles of Organization with the New Mexico Secretary of State that a multi-member company files, and the entity that results has the same limited-liability characteristics. The difference lives inside the company - one member owns everything, and the governance questions an operating agreement normally settles between co-owners collapse to a single decision-maker.
New Mexico handles business filings through the Secretary of State's online Business Filing System. That portal is where the Articles are submitted, where status is checked, and where subsequent filings are made. For the formation walkthrough see how to form an LLC in New Mexico.
Forming the Company
Formation comes down to four decisions and one filing. Name: the LLC's name must include an LLC designator and be distinguishable from names already on the Secretary of State's records - check with the New Mexico business entity search. Registered agent: New Mexico requires an agent with a physical street address in the state who can accept service of process; see New Mexico registered agent. Address and organizer: the Articles identify the principal place of business and the person submitting the filing. Management: member-managed or manager-managed.
The Secretary of State charges a filing fee set by state law. Confirm the current amount on the Secretary of State's business services pages rather than a third-party site, because formation services frequently quote a bundled price that includes their own service charge. Our New Mexico LLC cost page breaks the components apart.
Federal Tax Treatment
The IRS classifies a domestic single-member LLC as a disregarded entity unless the owner elects otherwise. Disregarded means the company is ignored for income tax purposes: its activity is reported directly by the owner. An individual owner reports business income and expenses on Schedule C and pays self-employment tax on the net profit through Schedule SE. There is no separate federal income tax return for the LLC.
Disregarded status is not total. The IRS treats a disregarded SMLLC as a separate entity for employment taxes and certain excise taxes, which is why an LLC with employees needs its own EIN and files payroll returns in the company's name.
Two elections can change the picture. Filing Form 8832 makes the LLC a corporation for tax purposes; filing Form 2553 makes it an S corporation. The S election is the one owners most often consider once profit is well above a reasonable salary, because distributions beyond wages are not subject to self-employment tax. It also adds payroll compliance. See S-corp vs LLC and S-corp election in New Mexico.
New Mexico Gross Receipts Tax
The tax that surprises newcomers is gross receipts tax (GRT). New Mexico does not impose a classic sales tax collected from the buyer. It imposes GRT on the seller for the privilege of doing business in New Mexico, measured by receipts from selling property, leasing property, granting licenses, or performing services in the state. Services are broadly covered, which is why New Mexico consultants and freelancers owe GRT where their peers in other states owe nothing.
The rate is not uniform. New Mexico combines a state rate with local increments, so the total rate depends on the business location, and the Taxation and Revenue Department publishes a location code and tax rate map for looking it up. Register with the Department before your first sale and file on the schedule it assigns. Details are in New Mexico LLC tax filing.
State Income Tax on the Profit
Because the LLC is disregarded federally, its profit also flows onto the owner's New Mexico personal income tax return. There is no separate LLC income tax return in the default case. Owners should plan for three payments on the same dollar of profit: federal income tax, federal self-employment tax, and New Mexico personal income tax - plus GRT on the receipts that generated it. See self-employment tax in New Mexico.
Why the Operating Agreement Still Matters
Owners of one-member companies often skip the operating agreement on the theory that there is no one to agree with. That reasoning misses what the document does for a solo owner. It evidences that the LLC is a real, separately governed entity - the central question in a veil-piercing dispute. It states who may bind the company, which banks, landlords, and lenders ask about. It sets out what happens on the member's death or incapacity, which is otherwise left to default statutory rules and probate. And it documents capital contributions and distributions, keeping the line between the member and the company visible.
Keeping the Liability Shield Intact
A single-member LLC's protection depends on the owner treating it as separate. The practical checklist is short: a dedicated business bank account funded by documented capital contributions; contracts, invoices, and leases signed in the LLC's name with the signer's title; no routine payment of personal expenses from company funds; adequate capitalization for the business's obligations; and current filings with the Secretary of State. Personal guarantees are the exception - if you personally guarantee a lease or loan, the LLC does not shield you from that debt.
Licenses and Local Requirements
Formation with the Secretary of State does not authorize you to operate. New Mexico municipalities commonly require their own business registration, and regulated occupations require professional licensure from the relevant board. Check New Mexico business license and the national licensing overview before opening.
Ongoing Upkeep
Keep four things current. Your registered agent and registered address, so service of process reaches you. Any Secretary of State filings that apply to your entity type - see New Mexico annual report rules. Your GRT registration and returns with the Taxation and Revenue Department. And your federal filings with the IRS. When the business ends, dissolve it deliberately rather than abandoning it; an abandoned LLC keeps accruing obligations. Background definitions are in the glossary, and the national single-member LLC guide compares states.
Frequently Asked Questions
Can one person own an LLC in New Mexico?
Yes. New Mexico permits a limited liability company with a single member. The formation document, the Articles of Organization filed with the Secretary of State, is the same one a multi-member LLC files. The difference is internal: one member holds 100% of the membership interests and, unless a manager is appointed, manages the company.
How is a New Mexico single-member LLC taxed?
By default the IRS disregards it as an entity separate from its owner. Business income and expenses go on Schedule C of the owner's Form 1040, and the owner pays self-employment tax on the profit. New Mexico taxes the same profit through personal income tax, and gross receipts tax applies at the business level on most sales.
Does a New Mexico single-member LLC need an EIN?
Not always, but usually in practice. A disregarded SMLLC with no employees and no excise tax obligations can use the owner's Social Security number federally. Most banks require an EIN to open a business account, and an EIN is needed if you hire employees, elect corporate or S-corp treatment, or file certain excise returns. It is free from the IRS.
Do New Mexico LLCs file an annual report?
New Mexico's ongoing requirements for LLCs differ from those for corporations, which file a corporate report with the Secretary of State. Confirm what applies to your LLC on the Secretary of State's business services pages before assuming an annual filing exists or does not, and keep your registered agent and address current either way.
What is gross receipts tax and does my LLC owe it?
New Mexico does not levy a conventional sales tax. Instead it imposes gross receipts tax on the seller for the privilege of doing business in the state, measured by receipts from selling property or performing services. Rates vary by location because the state rate is combined with local increments. Register with the Taxation and Revenue Department before you start selling.
Does a single-member LLC protect my personal assets in New Mexico?
It can, if you respect the separation. Keep a dedicated business bank account, sign contracts in the LLC's name, adopt a written operating agreement, and avoid paying personal expenses from company funds. Courts can disregard the entity when owners treat it as a personal checkbook, and a single-member LLC draws that scrutiny more often.
Related
- How to form an LLC in New Mexico
- New Mexico Articles of Organization
- New Mexico LLC cost
- New Mexico registered agent
- New Mexico LLC operating agreement
- New Mexico annual report rules
- New Mexico LLC tax filing
- Self-employment tax in New Mexico
- New Mexico business entity search
- New Mexico business license
- S-corp election in New Mexico
- Single-member LLC (national guide)
Sources
- New Mexico Secretary of State - Business Services (LLC formation, registered agent, and filing requirements).
- New Mexico Secretary of State - Business Filing System (online Articles of Organization filing portal).
- New Mexico Taxation and Revenue Department - Gross Receipts Overview.
- New Mexico Taxation and Revenue Department - Register Your Business.
- New Mexico Taxation and Revenue Department - Gross Receipts Location Code and Tax Rate Map.
- New Mexico Taxation and Revenue Department - Businesses.
- IRS - Single Member Limited Liability Companies (disregarded entity treatment).
- IRS - Limited Liability Company (LLC).
- IRS - Get an Employer Identification Number (free EIN).
- IRS - About Form SS-4.
- IRS - About Form 2553 (S-corporation election).
- IRS - Self-Employment Tax.
LegalGlass provides general information for educational purposes and is not legal advice, is not a law firm, and is not a substitute for advice from a licensed attorney or tax professional. Laws, fees, and thresholds change; verify current amounts with the New Mexico Secretary of State and the New Mexico Taxation and Revenue Department before acting.