Key Takeaways
- New Mexico does NOT clearly extend charging-order-as-exclusive-remedy protection to single-member LLCs — NMSA § 53-19-35 (no exclusivity language)
- New Mexico does not legally require a written operating agreement, but you should have one anyway
- No New Mexico appellate case has been found applying a heightened veil-piercing standard specifically to single-member LLCs — the state's general alter-ego test applies the same way regardless of member count. That said, with the charging-order statute's exclusivity gap unresolved, keeping clean formalities matters more here than in a state with strong statutory backup.
- New Mexico has a graduated personal income tax ranging from 1.5% to 5.9% across five brackets (2026), so a single-member LLC owner pays that rate on the LLC's pass-through profit in addition to federal income tax and self-employment tax.
- Same-day single-member LLC formation and a solo-owner operating agreement available through LLC Attorney, at no markup on state fees
A single-member LLC is a common way solo owners in New Mexico structure their business, and New Mexico is a genuinely low-cost state to maintain one — no annual report, no annual fee, and strong privacy protections for owners who don't want their name in public filings.
This guide covers exactly how a New Mexico single-member LLC works in 2026 — including a real gap worth understanding: the state's charging-order statute never says a charging order is the exclusive remedy against a member's interest, for any LLC. That's different from a state actively stripping protection from single-member LLCs, but it means you can't point to a clear statutory guarantee either.
What Is a New Mexico Single-Member LLC?
A single-member LLC (SMLLC) is a limited liability company with exactly one owner. It's formed the same way as any other New Mexico LLC — same Articles of Organization, same registered agent requirement — the only difference is ownership structure. By default, the IRS treats a single-member LLC as a "disregarded entity," meaning its income passes through to the owner's personal tax return rather than being taxed at the entity level.
Does New Mexico Protect Single-Member LLCs From Charging Orders?
A charging order limits a creditor of an LLC member (a personal creditor, not a business creditor) to collecting distributions from that member's interest — rather than letting the creditor seize LLC assets outright or force a sale. Many states extend this protection to multi-member LLCs without question, but treat single-member LLCs differently since there's no other member to protect from an unwanted co-owner.
Not clearly. New Mexico's LLC Act (NMSA § 53-19-35) gives a member's judgment creditor charging-order rights limited to an assignee's economic interest — but unlike Wyoming, Nevada, Ohio, Oklahoma, North Dakota, or South Dakota, the statute contains no "exclusive remedy" language at all, for single-member or multi-member LLCs. No New Mexico court has directly tested whether a creditor can go further than a charging order against a single-member LLC's interest, so this is a real, unresolved gap rather than a settled protection you can rely on the way you could in a state with explicit exclusivity language.
Do I Need an Operating Agreement for My New Mexico SMLLC?
No. New Mexico does not require a written operating agreement for an LLC of any size — NMSA § 53-19-2(O) simply defines what an operating agreement is without mandating one exist in writing. Given the charging-order statute's silence on exclusivity, a well-drafted written operating agreement is still worth having: it's the clearest evidence available that your LLC is a genuinely separate entity if a court is ever asked to look past the LLC form.
An operating agreement can name a successor member and include transfer-on-death language, letting your New Mexico LLC interest pass to an heir without going through probate — worth including even though New Mexico doesn't require the document itself.
Is a New Mexico Single-Member LLC Easier to Pierce?
Courts everywhere apply the corporate veil doctrine to LLCs, but with only one member, there's no second owner's independent conduct to point to as evidence the company is a genuinely separate entity — which is why single-member LLCs face more practical scrutiny than multi-member LLCs even where the legal test is identical on paper.
No New Mexico appellate case has been found applying a heightened veil-piercing standard specifically to single-member LLCs — the state's general alter-ego test applies the same way regardless of member count. That said, with the charging-order statute's exclusivity gap unresolved, keeping clean formalities matters more here than in a state with strong statutory backup.
Formalities to maintain: keep a dedicated business bank account and never commingle personal and LLC funds, sign every contract and check in the LLC's name (not your own), maintain a written operating agreement even though it isn't required, keep basic records of major decisions and distributions, and adequately capitalize the LLC for the business it actually runs.
How Is a New Mexico Single-Member LLC Taxed?
By default, the IRS disregards a single-member LLC for federal tax purposes — you report business income on Schedule C of your personal return, and you'll owe self-employment tax (Social Security and Medicare) on net earnings. You can elect corporate taxation instead by filing Form 8832 (C-corp) or Form 2553 (S-corp) if that fits your situation better — but unlike a multi-member LLC, a single-member LLC can never elect partnership taxation, since that requires more than one owner.
New Mexico has a graduated personal income tax ranging from 1.5% to 5.9% across five brackets (2026), so a single-member LLC owner pays that rate on the LLC's pass-through profit in addition to federal income tax and self-employment tax.
New Mexico LLCs owe no annual report and no ongoing annual fee to the Secretary of State — one of the lowest ongoing compliance costs in the country, regardless of the charging-order gap discussed above.
Does My New Mexico SMLLC Need an EIN?
Technically, a single-member LLC with no employees can use the owner's SSN for federal tax filing purposes. In practice, get an EIN anyway (it's free and instant from the IRS) — nearly every New Mexico bank requires one to open a business account, and using an EIN instead of your SSN keeps your personal information off business paperwork and vendor forms.
No New Mexico court has tested whether a charging order is the exclusive remedy against a single-member LLC's interest, in either direction — treat this as an open question rather than either a confirmed protection or a confirmed weakness.
How to Set Up Your New Mexico Single-Member LLC
If You Do It Yourself
Step 1 — File your Articles of Organization.
Form your LLC the same way any other New Mexico LLC is formed — the state doesn't use a different form or process for single-member LLCs.
Step 2 — Appoint a registered agent.
New Mexico calls this role a "Registered Agent" — you can serve as your own if you have a physical in-state address, or use a commercial service for privacy and reliability.
Step 3 — Draft an operating agreement built for a solo owner.
No. New Mexico does not require a written operating agreement for an LLC of any size — NMSA § 53-19-2(O) simply defines what an operating agreement is without mandating one exist in writing. Given the charging-order statute's silence on exclusivity, a well-drafted written operating agreement is still worth having: it's the clearest evidence available that your LLC is a genuinely separate entity if a court is ever asked to look past the LLC form. An operating agreement can name a successor member and include transfer-on-death language, letting your New Mexico LLC interest pass to an heir without going through probate — worth including even though New Mexico doesn't require the document itself.
Step 4 — Understand your charging-order exposure.
Not clearly. New Mexico's LLC Act (NMSA § 53-19-35) gives a member's judgment creditor charging-order rights limited to an assignee's economic interest — but unlike Wyoming, Nevada, Ohio, Oklahoma, North Dakota, or South Dakota, the statute contains no "exclusive remedy" language at all, for single-member or multi-member LLCs. No New Mexico court has directly tested whether a creditor can go further than a charging order against a single-member LLC's interest, so this is a real, unresolved gap rather than a settled protection you can rely on the way you could in a state with explicit exclusivity language.
Step 5 — Maintain formalities to avoid alter-ego risk.
keep a dedicated business bank account and never commingle personal and LLC funds, sign every contract and check in the LLC's name (not your own), maintain a written operating agreement even though it isn't required, keep basic records of major decisions and distributions, and adequately capitalize the LLC for the business it actually runs.
Step 6 — Get an EIN and open a business bank account.
Technically, a single-member LLC with no employees can use the owner's SSN for federal tax filing purposes. In practice, get an EIN anyway (it's free and instant from the IRS) — nearly every New Mexico bank requires one to open a business account, and using an EIN instead of your SSN keeps your personal information off business paperwork and vendor forms.
Step 7 — Handle ongoing state compliance.
New Mexico LLCs owe no annual report and no ongoing annual fee to the Secretary of State — one of the lowest ongoing compliance costs in the country, regardless of the charging-order gap discussed above. New Mexico has a graduated personal income tax ranging from 1.5% to 5.9% across five brackets (2026), so a single-member LLC owner pays that rate on the LLC's pass-through profit in addition to federal income tax and self-employment tax.
Step 8 — Watch for New Mexico-specific SMLLC traps.
The most common New Mexico-specific mistake is assuming the state's charging-order statute works the same way as a modern exclusivity statute like Wyoming's or Ohio's — NMSA § 53-19-35 never uses "exclusive remedy" language at all, for any LLC, so New Mexico's baseline protection is textually thinner than in states that adopted more modern LLC Act language.
If LLC Attorney Does It for You
- Submit your business details at llcattorney.com — LLC name, registered agent, and ownership information.
- LLC Attorney forms your New Mexico single-member LLC and drafts a solo-owner operating agreement, including transfer-on-death provisions to keep your business out of probate.
- Receive your finished formation documents, EIN, and operating agreement, plus access to flat-fee attorney consultations (no retainer) for asset-protection questions as your business grows.
When Should You Talk to an Attorney About Your New Mexico Single-Member LLC?
Talk to an attorney before finalizing your New Mexico single-member LLC's structure if asset protection from personal creditors is a primary goal (the statute's silence on charging-order exclusivity means you can't rely on a clear guarantee the way you could in Wyoming or South Dakota), or if you're weighing New Mexico's privacy advantages against forming your primary asset-holding entity in a state with explicit SMLLC charging-order language instead.
What You Actually Get With LLC Attorney's New Mexico SMLLC Formation
The part of forming a New Mexico single-member LLC that generic templates miss is the charging-order statute's silence on exclusivity — most multi-state formation services don't flag that New Mexico's protection here is textually thinner than in states with modern exclusivity language. LLC Attorney builds your operating agreement around that reality from the start.
- Single-member LLC formation in New Mexico, starting at $0 + state fees.
- Solo-owner operating agreement with transfer-on-death provisions, starting at $49.
- Charging-order, alter-ego, and tax considerations addressed for your specific state — not a generic multi-state template.
- Access to professionally trained Business Success Advisors at no charge, plus flat-fee attorney consultations (no retainer) for asset-protection questions.
New Mexico's single-member LLC rules have one real gap — no charging-order exclusivity language — and LLC Attorney makes sure your operating agreement accounts for it while you still enjoy the state's low cost and strong privacy.
Ready to Form Your New Mexico Single-Member LLC?
LLC Attorney forms single-member LLCs in New Mexico and drafts an operating agreement built for a solo owner, starting at $0 + state fees. See our full pricing for all service tiers.
Frequently Asked Questions
Not clearly. NMSA § 53-19-35 gives a judgment creditor of a member only assignee-style rights to distributions, but the statute never says a charging order is the "exclusive remedy" — for a single-member LLC or a multi-member one. No New Mexico court has tested what other remedies a creditor might have access to, so treat this as an open question rather than a guarantee.
No, New Mexico does not legally require a written operating agreement for a single-member LLC. Given the charging-order statute's silence on exclusivity, however, a well-drafted operating agreement is one of the clearest pieces of evidence that your LLC is a genuinely separate entity.
No New Mexico case has been found applying a heightened piercing standard specifically to single-member LLCs. Still, keeping clean formalities — a separate bank account, a written operating agreement, and no commingling of funds — matters more here given the unresolved charging-order question than it would in a state with strong statutory backup.
No. New Mexico's LLC Act applies identically to single-member and multi-member LLCs; there's no statute written specifically for single-owner companies.
No. Partnership taxation requires at least two members. A New Mexico single-member LLC can only be taxed as a disregarded entity (the default), or elect C-corp or S-corp taxation instead.
Technically optional if the LLC has no employees (you can use your SSN instead), but get one anyway — it's free from the IRS, nearly every New Mexico bank requires it to open a business account, and it keeps your SSN off business paperwork.
Yes. Your operating agreement can name a successor member and include transfer-on-death language, letting your LLC interest pass to an heir outside of New Mexico's probate process — even though New Mexico doesn't require the operating agreement itself.
Given New Mexico's charging-order statute doesn't establish exclusivity for any LLC member, adding a nominal second member wouldn't restore a protection the way it might in a state like Florida (where Olmstead's holding turned specifically on single-member status). It's still worth discussing structure with an attorney if asset protection is a priority, since New Mexico's gap is a statutory drafting issue rather than a single-member-specific carve-out.
Yes. LLC Attorney forms single-member LLCs in New Mexico, including a solo-owner operating agreement, starting at $0 + state fees.