Maryland LLC Operating Agreement: Guide (2026)

Q: Does Maryland require an LLC operating agreement?

No. Maryland law does not require an LLC to adopt an operating agreement, and you never file one with the State Department of Assessments and Taxation (SDAT). The Maryland LLC Act permits and governs operating agreements, and if you have none, the default rules in Corporations and Associations Article, Title 4A, apply instead.

Q: Do I file my Maryland operating agreement with the state?

No. An operating agreement is an internal document kept in your company records. You file Articles of Organization with SDAT to create the LLC, but the operating agreement is never submitted to or reviewed by the state, so it stays private among the members.

Q: Does a single-member Maryland LLC need an operating agreement?

It is not legally required, but it is strongly recommended. A single-member operating agreement documents that the LLC is separate from its owner, which helps preserve liability protection, and it sets succession rules for the owner's death or incapacity.

Q: Member-managed vs manager-managed: which should a Maryland LLC pick?

Member-managed means the owners run the LLC directly and is common for small, owner-operated businesses. Manager-managed vests authority in one or more managers, which suits passive investors or larger LLCs. The operating agreement states the choice and defines each role's authority.

Fact-checked by the LegalGlass editorial team against primary sources · Published Aug 6, 2026 · Last updated Aug 6, 2026

Maryland does not require an LLC operating agreement, and you never file it with the State Department of Assessments and Taxation (SDAT). But under the Maryland LLC Act (Corporations & Associations Article, Title 4A) the operating agreement is the internal contract that controls ownership, management, voting, and profit sharing. If you skip it, Title 4A's default rules govern your LLC instead - and those defaults may not match what the members actually want.

Quick Answer

Required by law?: No - optional, but strongly recommended
Filed with the state?: No - internal document, never sent to SDAT
Filing fee: $0 (there is nothing to file)
Governing law: Maryland LLC Act, Corporations & Associations Article, Title 4A
If you have none: Title 4A default rules apply automatically
Applies to: Single-member and multi-member LLCs alike

Is an Operating Agreement Required in Maryland?

No. Unlike a few states that make an operating agreement mandatory by statute, Maryland does not require one to form or maintain an LLC. The document you must file to create the LLC is the Articles of Organization, submitted to SDAT; the operating agreement is separate, internal, and optional. The Maryland LLC Act - Corporations & Associations Article, Title 4A - recognizes and enforces operating agreements and defines the term, but it does not condition the LLC's existence on having one.

"Not required" is not the same as "not important." Maryland's statute lets an operating agreement override most of the default governance rules, so it is the single most powerful tool the members have to shape how the business runs. Without it, you are accepting the statute's one-size-fits-all defaults. This is why nearly every well-run Maryland LLC adopts one even though no law forces it. For the national concept, see what an LLC operating agreement is.

You Do Not File It With the State

An operating agreement is a private contract among the members. You do not submit it to SDAT, the Comptroller of Maryland, or any other agency, and there is no filing fee. The state's public record for your LLC consists of the Articles of Organization, the resident agent designation, and your yearly Annual Report - not the operating agreement. Keep the signed agreement with your company records, and give a copy to your bank or accountant when they ask, but understand it stays out of the public file.

Because it is never reviewed by the state, no one checks it for you. That cuts both ways: you have full freedom to draft it as the members see fit, but you also bear full responsibility for making it complete and internally consistent. A vague or contradictory agreement can cause more disputes than it prevents, so treat drafting as a real decision, not a formality.

Why a Maryland LLC Should Have One

An operating agreement earns its keep in four ways. First, it overrides the statutory defaults so profit splits, voting, and management match the members' actual deal rather than Title 4A's assumptions. Second, it reinforces liability protection by showing the LLC is a separate entity with its own governance, which helps rebut a claim that the LLC is merely the owner's alter ego. Third, it prevents and resolves disputes, because members and courts look to it first when a disagreement arises. Fourth, banks, lenders, investors, and title companies frequently ask to see it before opening accounts or closing deals.

These benefits apply whether the LLC has one owner or many. A multi-member LLC needs the agreement to keep partners aligned; a single-member LLC needs it to document separateness and plan succession. See what is an LLC and single-member LLC for how the liability shield works and why documentation supports it.

What to Include in the Agreement

There is no state-mandated template, but a thorough Maryland operating agreement typically covers the items below. Tailor them to your business rather than copying a generic form.

Provision	What it settles
Company details	LLC name, principal office, resident agent, purpose, and term
Members and ownership	Each member's name and percentage (membership) interest
Capital contributions	What each member contributed and rules for future contributions
Management structure	Member-managed or manager-managed, and each role's authority
Voting	What decisions need a vote and the threshold (majority, supermajority, unanimous)
Profit and loss allocation	How income and losses are split, and when distributions are made
Transfers and buy-sell	Restrictions on selling an interest; buyout on death, exit, or dispute
Dissolution	Events that trigger winding up and how assets are distributed

Add an amendment clause stating how the agreement itself can be changed, and have every member sign and date it. If the LLC later elects S-corporation tax treatment or takes on new members, revisit these provisions so the paper matches reality.

Member-Managed vs Manager-Managed

Maryland LLCs choose one of two management structures, and the operating agreement is where that choice is spelled out in detail. In a member-managed LLC, the owners run the business directly and each generally has authority to act for the company - the common choice for small, owner-operated Maryland businesses. In a manager-managed LLC, the members appoint one or more managers (who may or may not be members) to run day-to-day operations, while the members retain major decisions. This structure suits LLCs with passive investors or many owners.

The agreement should define who the managers are, how they are appointed and removed, the scope of their authority, and which decisions are reserved to the members. Under the Maryland LLC Act's default management provisions, gaps are filled by statute, but the operating agreement is what lets you customize authority, signing power, and compensation. Coordinate the management choice with your Articles of Organization, which also indicate the management structure.

Single-Member vs Multi-Member Agreements

A single-member Maryland LLC agreement is shorter but still valuable. Its main jobs are to confirm the sole owner's 100% interest, document that the LLC is a distinct entity (supporting the liability shield), name who takes over on the owner's death or incapacity, and record the tax classification. Even with one owner, having the agreement on file helps when a bank, the IRS, or a court asks how the LLC is governed.

A multi-member agreement is where careful drafting matters most, because it governs the relationship among people whose interests can diverge. Spell out ownership percentages, decision thresholds, how profits are distributed versus retained, what happens if a member wants out or dies, how new members are admitted, and how deadlocks are broken. A clear buy-sell provision, in particular, prevents the most damaging disputes. These are the same fault lines the national operating agreement and LLC vs corporation guides address.

Maryland's Default Rules If You Have No Agreement

If a Maryland LLC has no operating agreement, or the agreement is silent on a point, the Maryland LLC Act (Title 4A) supplies the answer. The statute's default rules govern how the LLC is managed, how members vote, how profits and losses are allocated, how distributions are made, and how the LLC dissolves. These defaults are reasonable general rules, but they are unlikely to match a specific business's intentions - for example, the default profit-sharing rule may not reflect an uneven ownership deal, and default management rules may not fit how the owners actually run things.

The practical takeaway: relying on the defaults means letting the legislature, not the members, decide key questions. Because Title 4A lets the operating agreement override most of these provisions, the fix is simply to adopt a written agreement that states what you want. Doing so before a dispute arises is far cheaper than litigating one afterward. When you eventually close the business, the agreement's dissolution terms also guide the wind-up and cancellation.

Frequently Asked Questions

Does Maryland require an LLC operating agreement?

No. Maryland law does not require one, and you never file it with SDAT. The Maryland LLC Act permits operating agreements and, if you have none, Title 4A's default rules govern the LLC instead.

Do I file my Maryland operating agreement with the state?

No. It is an internal document kept in your records. Only the Articles of Organization, resident agent, and Annual Report are on the SDAT public record - the operating agreement stays private.

Does a single-member Maryland LLC need an operating agreement?

It is not required but is strongly recommended. It documents that the LLC is separate from its owner, supporting liability protection, and sets succession rules for death or incapacity.

What happens if a Maryland LLC has no operating agreement?

The default rules of the Maryland LLC Act (Title 4A) govern management, voting, profit allocation, distributions, and dissolution - which may not match what the members actually intend.

Member-managed vs manager-managed: which should a Maryland LLC pick?

Member-managed suits small, owner-run LLCs; manager-managed suits passive investors or larger LLCs. The operating agreement states the choice and defines each role's authority.

Sources

Maryland General Assembly - Corporations & Associations § 4A-402, Operating agreement (authority and effect).
Maryland General Assembly - Corporations & Associations § 4A-101, Definitions (definition of "operating agreement").
Maryland General Assembly - Corporations & Associations § 4A-403, Management of the LLC (member vs manager default rules).
Maryland General Assembly - Corporations & Associations § 4A-204, Articles of organization (what is actually filed with SDAT).
Maryland General Assembly - Corporations & Associations § 4A-210, Principal office and resident agent.
Maryland General Assembly - Corporations & Associations § 4A-902, Dissolution (default dissolution rules).
Maryland SDAT - Maryland Business Services (Charter Division) (what documents are filed with the state).
Maryland SDAT - Articles of Organization (LLC) form (PDF) (management indication; resident agent).
IRS - Limited Liability Company (LLC) (federal treatment of LLC members).
IRS - Single Member Limited Liability Companies (separateness and classification).
Legal Information Institute (Cornell) - Operating agreement (Wex definition).
Legal Information Institute (Cornell) - Limited liability company (LLC).

LegalGlass provides general information for educational purposes and is not a law firm or a substitute for advice from a licensed attorney or tax professional. Laws and requirements change; verify current Maryland LLC Act provisions with the Maryland General Assembly and the Maryland State Department of Assessments and Taxation, and consider having an attorney draft or review your operating agreement.