LLC Operating Agreement — What It Is and Why You Need One

What Is an LLC Operating Agreement?

An LLC operating agreement is a contract between the owners of a limited liability company — called members — and, where the LLC has them, its managers. It spells out who owns what percentage of the company, who has authority to make decisions and sign on the company's behalf, and how profits and losses are shared. Beyond the formation documents you file with the state, it's typically the most important paperwork your business will ever produce, and it should be signed by everyone involved.

Think of it as your company's internal rulebook: it exists so every member and manager understands their relationship to the business before a disagreement happens, not after. Written and signed on day one, it's a planning document. Drafted after a dispute has already started, it's closer to a settlement negotiation.

Is an Operating Agreement Required?

Most states don't require an LLC to adopt or file a written operating agreement, and it's never filed with the state alongside your formation documents — it stays internal. But "not required" and "not needed" are different things: opening a bank account, signing a contract, bringing on an investor, or standing in front of a judge can all turn on this paperwork. It's usually the document that shows who owns the company and who can act on its behalf.

Without one, those questions don't go away — they just get answered later, by your state's default LLC rules instead of by you and your members. Treating an operating agreement as optional is generally considered poor practice, since it leaves the business exposed to disputes that a short, signed document could have prevented.

What an Operating Agreement Should Include

There's no single required format, but a usable LLC operating agreement consistently covers the same core ground. Use this as a checklist when reviewing your own agreement — whether it's the one included with your LLC formation or one you're drafting from scratch:

• Member names and ownership percentages — who owns the company and how much of it.
• Initial capital contributions — what each member put in to start the business, whether cash, property, or services.
• Management structure — whether the LLC is member-managed (all members act as managers) or manager-managed (only designated managers do).
• Manager authority and spending limits — what a manager can decide alone versus what requires member approval.
• Voting thresholds — what percentage of ownership interest is needed for routine decisions versus major ones, like amending the agreement itself.
• Distributions — how and when profits are paid out to members, and whether distributions are required annually or left discretionary.
• Exit and transfer provisions — what happens if a member wants to leave, sell their interest, dies, or is removed.
• Amendment procedures — how the agreement itself can be changed, and by what vote.
• Dissolution terms — how the company winds down if the members decide to close it.

Single-Member vs. Multi-Member LLC Operating Agreements

Every LLC benefits from having an operating agreement, but what that agreement needs to cover looks different depending on whether you're the only owner or you're sharing the business with others.

A single-member LLC doesn't have a partnership dispute to plan around, but it still needs to prove ownership is separate from the individual behind it — that separation is part of what supports your liability protection in the first place. A multi-member LLC has the opposite challenge: more people means more that can go unstated, so the agreement carries more of the weight of keeping everyone aligned.

The other thing that separates the two is management. In a member-managed LLC, every member can act on the company's behalf — signing contracts, opening bank accounts, making day-to-day calls. In a manager-managed LLC, only the people named as managers have that authority, and a manager doesn't have to be an owner at all. Single-member LLCs are usually member-managed by default. In a multi-member LLC the distinction does real work, because it decides who can commit the company to something without asking anyone first. A manager may generally take any action they reasonably believe furthers the company's interests, so multi-member agreements often narrow that with explicit spending limits: one manager can commit up to a set dollar amount alone, and anything larger needs the consent of the other managers or the members.

Distributions are the other common divergence. A distribution is profit paid out from the company's accounts to its owners; repaying a loan a member made to the company is not one. Because an LLC is treated as a pass-through for tax purposes by default, members owe tax on their share of the profits whether or not the money is actually paid out. A multi-member operating agreement should say whether operating cash flow must be distributed annually or is left to a member vote, and what percentage of ownership interest it takes to approve a distribution.

Capital contributions deserve the same treatment. If the company needs more money later, is contributing mandatory or discretionary? Discretionary contributions give members with unequal financial means more room, but a member who doesn't contribute is diluted and ends up owning less of the company.

What Happens If You Don't Have One?

If there's no written agreement, proving who owns what — and who agreed to what — becomes exceedingly difficult. Picture explaining to a judge what percentage of the company you own with no signed document to point to. Even money you personally moved into the business can be read multiple ways: was it an equity contribution, a loan, or something else? Without documentation, a court is unlikely to fully agree with any one side.

The practical effect: your state's default LLC statute steps in instead of your own terms, commonly splitting profits and decision-making power equally among members regardless of who put in the capital or does the day-to-day work — rarely what a group of business partners actually intended.

How to Create Your LLC's Operating Agreement

If you're still working through formation itself, our guide to forming an LLC walks through where an operating agreement fits into that process, and a registered agent keeps your company reachable for the official mail that references it.

Common Operating Agreement Mistakes

Most operating agreement problems aren't exotic. The same handful of gaps show up over and over, and every one of them is far cheaper to fix at formation than in the middle of a dispute.

• Never signing it. An unsigned draft sitting in a folder is not an agreement. It has to be executed by every member — and by any manager who isn't a member — before it does anything for you.
• Assuming a single-member LLC doesn't need one. There's no partner to argue with, but there's still a bank, a lender, or a court that may want to see the company treated as separate from you personally.
• Copying a template without reading it. A generic agreement pulled off the internet often imposes formalities the owners never intended to follow. Signing requirements you then ignore is worse than not having them — it's on paper that you knew better.
• Leaving out an exit. Agreements that describe how to run the company but never say what happens when a member wants out, dies, or is removed leave the hardest conversation completely unscripted.
• Splitting ownership 50/50 with no tiebreaker. An even two-owner split means neither owner can change anything without the other agreeing. It works while everyone gets along and is close to unfixable outside of court when they don't.
• Letting it go stale. Ownership shifts, a member joins, the management structure changes — and the signed agreement still describes the company as it existed three years ago. Amend it when the facts change.

Does My Corporation Need Something Similar?

Corporations use a different document for the same job: bylaws, sometimes paired with a shareholder agreement. Bylaws set the rules for electing a board of directors, whether board or officer meetings are required, and how the company notifies owners of changes — functionally similar to an operating agreement, just organized around shareholders and a board instead of members and managers.

Bylaws typically cover how directors are elected, whether regular board or officer meetings are required, how owners are notified of changes, how committees get created, and what the policy is on loans to directors. They can be brief or elaborate depending on what the owners want, and once signed they bind the company the same way an operating agreement binds an LLC. A shareholder agreement handles the ownership side: shareholders elect the board, and the board appoints the company's officers.

Corporations also keep organizational minutes — a written record of the discussions, decisions, and actions the company takes at shareholder, board, and annual meetings. Every CompanySage formation package includes an Operating Agreement or Bylaws plus organizational minutes, so a corporation formed with us starts from the same paperwork baseline an LLC does. A sole proprietorship or DBA is the exception: with no formal entity and no second party, there's no internal contract to write.

An S-corp is a tax election, not a business entity — both LLCs and corporations can file for it — so whether "S-corp status" changes what document you need depends on the underlying entity you elected it for. If you're weighing entity types before you form, see LLC vs. S-corp for how the two compare.