--- title: "Maryland Single-Member LLC: Charging Order Protection & Taxes 2026 | LLC Attorney" description: "How a single-member LLC works in Maryland in 2026: uniform charging-order exclusivity, why Serio v. Baystate Properties requires actual fraud to pierce a SMLLC, Resident Agent rules, and taxes." canonical: https://llcattorney.com/states/md/single-member-llc-maryland image: https://llcattorney.com/images/share-cover.png source_path: /states/md/single-member-llc-maryland --- Key Takeaways - Maryland extends charging-order-as-exclusive-remedy protection to single-member LLCs the same as multi-member LLCs — Md. Code, Corps. & Ass'ns §4A-607(f) - Maryland does not legally require a written operating agreement, but you should have one anyway - Maryland is one of the best-documented favorable states for single-member LLC piercing protection in this guide. In Serio v. Baystate Properties, LLC, 203 Md. App. 581, 39 A.3d 131 (2012), Vincent Serio was the sole member of Serio Investments, LLC; a trial court pierced the LLC's veil based on informality, but the Court of Special Appeals reversed, holding Maryland 'takes a dim view' of veil-piercing and will pierce only where there is evidence of actual FRAUD — not merely single-member structure combined with informal recordkeeping. That's a meaningfully higher bar than the looser 'improper purpose' or 'unity of interest' standards some states apply. - Maryland has a graduated personal income tax ranging from 2.00% to 5.75%, plus a mandatory county-level income tax layered on top (roughly 2.25%–3.20% depending on county), so a single-member LLC owner pays both rates on the LLC's pass-through profit in addition to federal income tax and federal 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 the most common way solo owners in Maryland structure their business — and Maryland is one of the more favorable states in this guide, pairing uniform charging-order exclusivity with a fraud-only standard for piercing a single-member LLC's liability shield. This guide covers exactly how a Maryland single-member LLC works in 2026 — the §4A-607(f) charging-order rule, the Serio v. Baystate Properties piercing precedent, whether you need a written operating agreement, and how the LLC is taxed at both the federal and state level. YesCharging order exclusivity for SMLLCs NoWritten operating agreement required $300Annual report fee StandardAlter-ego / piercing risk (fraud-only) ## What Is a Maryland 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 Maryland LLC — same Articles of Organization, same resident 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 Maryland 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. Yes. Md. Code, Corps. & Ass'ns §4A-607(f) states the section is 'the exclusive remedy by which a creditor of a member may attach the membership interest,' with no text distinguishing single-member from multi-member LLCs. That uniform statutory language is reinforced by favorable Maryland case law on the piercing side (see below) rather than undercut by it — a genuinely favorable combination for a Maryland single-member LLC owner. ## Do I Need an Operating Agreement for My Maryland SMLLC? No. Md. Code §4A-402 permits an LLC agreement to be oral, written, or implied — nothing in the statute requires a single-member LLC's operating agreement to be in writing. A written one is still worth having as the clearest record of your terms and the LLC's separateness. An operating agreement can name a successor member and include transfer-on-death language, letting your LLC interest pass to an heir without going through Maryland probate — worth including even though Maryland doesn't require the document itself. ## Is a Maryland 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. Maryland is one of the best-documented favorable states for single-member LLC piercing protection in this guide. In Serio v. Baystate Properties, LLC, 203 Md. App. 581, 39 A.3d 131 (2012), Vincent Serio was the sole member of Serio Investments, LLC; a trial court pierced the LLC's veil based on informality, but the Court of Special Appeals reversed, holding Maryland 'takes a dim view' of veil-piercing and will pierce only where there is evidence of actual FRAUD — not merely single-member structure combined with informal recordkeeping. That's a meaningfully higher bar than the looser 'improper purpose' or 'unity of interest' standards some states apply. **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 Maryland 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. Maryland has a graduated personal income tax ranging from 2.00% to 5.75%, plus a mandatory county-level income tax layered on top (roughly 2.25%–3.20% depending on county), so a single-member LLC owner pays both rates on the LLC's pass-through profit in addition to federal income tax and federal self-employment tax. Maryland LLCs owe a flat $300 Annual Report / Business Personal Property Return each year, due April 15 — one of the higher flat recurring fees among states in this guide, and it applies regardless of whether the LLC made any profit. ## Does My Maryland 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 Maryland 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. ## How to Set Up Your Maryland Single-Member LLC ### If You Do It Yourself **Step 1 — File your Articles of Organization.** Form your LLC the same way any other Maryland LLC is formed — the state doesn't use a different form or process for single-member LLCs. **Step 2 — Appoint a registered agent.** Maryland calls this role a "Resident 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. Md. Code §4A-402 permits an LLC agreement to be oral, written, or implied — nothing in the statute requires a single-member LLC's operating agreement to be in writing. A written one is still worth having as the clearest record of your terms and the LLC's separateness. An operating agreement can name a successor member and include transfer-on-death language, letting your LLC interest pass to an heir without going through Maryland probate — worth including even though Maryland doesn't require the document itself. **Step 4 — Understand your charging-order exposure.** Yes. Md. Code, Corps. & Ass'ns §4A-607(f) states the section is 'the exclusive remedy by which a creditor of a member may attach the membership interest,' with no text distinguishing single-member from multi-member LLCs. That uniform statutory language is reinforced by favorable Maryland case law on the piercing side (see below) rather than undercut by it — a genuinely favorable combination for a Maryland single-member LLC owner. **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 Maryland 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.** Maryland LLCs owe a flat $300 Annual Report / Business Personal Property Return each year, due April 15 — one of the higher flat recurring fees among states in this guide, and it applies regardless of whether the LLC made any profit. Maryland has a graduated personal income tax ranging from 2.00% to 5.75%, plus a mandatory county-level income tax layered on top (roughly 2.25%–3.20% depending on county), so a single-member LLC owner pays both rates on the LLC's pass-through profit in addition to federal income tax and federal self-employment tax. **Step 8 — Watch for Maryland-specific SMLLC traps.** The most common Maryland-specific mistake is assuming informal recordkeeping or loose formalities alone put a single-member LLC's liability shield at serious risk — Serio v. Baystate Properties specifically rejected that theory and held Maryland requires evidence of actual fraud to pierce, a materially higher bar than many owners assume. Ready to Launch Your Business in Maryland?Follow our fast, easy process to get started right now.[Start My Business](https://app.llcattorney.com/formation?intake_type=formation) ### If LLC Attorney Does It for You 1. Submit your business details at llcattorney.com — LLC name, resident agent, and ownership information. 2. LLC Attorney forms your Maryland single-member LLC and drafts a solo-owner operating agreement, including transfer-on-death provisions to keep your business out of probate. 3. 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 Maryland Single-Member LLC? Talk to an attorney before finalizing your Maryland single-member LLC's structure if you want to confirm your specific fact pattern still falls within Serio v. Baystate's fraud-only piercing standard, if you're structuring transfer-on-death or successor-member provisions for estate planning, or if you have out-of-state creditor exposure and want to confirm Maryland's protective posture actually controls. ## What You Actually Get With LLC Attorney's Maryland SMLLC Formation The part of forming a Maryland single-member LLC that generic templates miss is Serio v. Baystate Properties — most multi-state formation services don't flag that Maryland courts require actual fraud, not just informality, to pierce a sole member's liability shield. LLC Attorney builds your operating agreement to reinforce that favorable precedent from the start. - Single-member LLC formation in Maryland, 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. Maryland's single-member LLC rules are genuinely favorable, and LLC Attorney makes sure your operating agreement and formation choices are built to take full advantage of that protection from day one. ## Ready to Form Your Maryland Single-Member LLC? LLC Attorney forms single-member LLCs in Maryland and drafts an operating agreement built for a solo owner, starting at $0 + state fees. See our [full pricing](/pricing) for all service tiers. Ready to Launch Your Business in Maryland?Follow our fast, easy process to get started right now.[Start My Maryland Single-Member LLC](https://app.llcattorney.com/formation?intake_type=formation) ## Frequently Asked Questions ### Does Maryland give single-member LLCs the same charging order protection as multi-member LLCs? ![icon](/_next/image?url=%2Fimages%2Ficons%2FfaqPlus.png&w=128&q=75) Yes. Md. Code, Corps. & Ass'ns §4A-607(f) makes the charging order the exclusive remedy for a creditor to reach a member's interest, with no statutory distinction based on member count — a genuinely protective, uniform rule for Maryland single-member LLCs. ### Is a written operating agreement legally required for a Maryland single-member LLC? ![icon](/_next/image?url=%2Fimages%2Ficons%2FfaqPlus.png&w=128&q=75) No, Maryland does not legally require a written operating agreement for a single-member LLC — oral, written, or implied agreements are all permitted under Md. Code §4A-402. A written one is still worth having as the clearest record of your LLC's terms. ### Are Maryland single-member LLCs at greater risk of having their liability shield pierced? ![icon](/_next/image?url=%2Fimages%2Ficons%2FfaqPlus.png&w=128&q=75) Maryland is favorable here. In Serio v. Baystate Properties, LLC (2012), the Court of Special Appeals reversed a piercing decision against a sole member, holding Maryland requires evidence of actual fraud to pierce an LLC's veil — not merely informality or single-member structure. That's a meaningfully higher bar than many states apply. ### Does Maryland have a law written specifically for single-member LLCs? ![icon](/_next/image?url=%2Fimages%2Ficons%2FfaqPlus.png&w=128&q=75) No. Maryland's LLC Act applies identically to single-member and multi-member LLCs; there's no statute written specifically for single-owner companies — the state's favorable treatment comes from uniform statutory language plus Serio v. Baystate's case law, not a dedicated SMLLC statute. ### Can a single-member LLC in Maryland elect partnership taxation? ![icon](/_next/image?url=%2Fimages%2Ficons%2FfaqPlus.png&w=128&q=75) No. Partnership taxation requires at least two members. A Maryland single-member LLC can only be taxed as a disregarded entity (the default), or elect C-corp or S-corp taxation instead. ### Does a single-member LLC in Maryland need an EIN? ![icon](/_next/image?url=%2Fimages%2Ficons%2FfaqPlus.png&w=128&q=75) 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 Maryland bank requires it to open a business account, and it keeps your SSN off business paperwork. ### Can a Maryland single-member LLC's operating agreement help my heirs avoid probate? ![icon](/_next/image?url=%2Fimages%2Ficons%2FfaqPlus.png&w=128&q=75) 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 Maryland's probate process — even though Maryland doesn't require the operating agreement itself. ### Should I add a second member to my Maryland LLC just to get better asset protection? ![icon](/_next/image?url=%2Fimages%2Ficons%2FfaqPlus.png&w=128&q=75) Because Maryland already extends uniform charging-order exclusivity and a fraud-only piercing standard to single-member LLCs, adding a nominal second member specifically for asset-protection purposes isn't necessary here the way it might be in a weaker state. It's still worth discussing with an attorney if you have other reasons (estate planning, succession) to consider it. ### Does LLC Attorney form single-member LLCs? ![icon](/_next/image?url=%2Fimages%2Ficons%2FfaqPlus.png&w=128&q=75) Yes. LLC Attorney forms single-member LLCs in Maryland, including a solo-owner operating agreement, starting at $0 + state fees. ## Related Maryland Resources - [Maryland LLC Formation](/states/md/llc-formation-maryland) - [Maryland Resident Agent](/states/md/registered-agent-maryland) - [Maryland EIN Number](/states/md/ein-number-maryland)