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LLC Operating Agreement: What Goes In It and Why It Matters

The operating agreement is the LLC's internal rulebook: ownership, money, decisions, and exits. The state never sees it, which is exactly why owners skip it, and exactly why the fights it prevents are so expensive. Here is what a real one covers.

By the LLCForming research teamFees checked Nov 8, 2026

What it is, and what it is not

An operating agreement is a contract among an LLC's members (and the LLC itself) that sets the rules the state filing never touches: who owns what share, who contributed what, how profits and losses are divided, who can make which decisions, and what happens when someone leaves, dies, or wants out. Texas calls the same document a company agreement. By whatever name, it is not filed with the state. No filing office collects it, reviews it, or keeps a copy. It lives in your records, and it surfaces at the moments that matter: opening a bank account, taking a loan, bringing in a partner, a member dispute, a divorce or death in the ownership, and the sale or closure of the business.

Here is the part owners miss: if you have no operating agreement, your LLC still has rules. They are your state's default rules, written in the LLC statute by legislators who never met you. Defaults typically split things by contribution or per member in ways that may not match your deal, and they govern everything your handshake left open. Writing an agreement is how you replace the state's guesses with your own decisions.

Is it legally required?

It depends on the state, and the honest answer has two layers. Only a few states require an LLC to have an operating agreement by law. California is one: the Secretary of State's own guidance says an LLC is required to have one, kept where the LLC keeps its records. Illinois law recognizes operating agreements whether they are oral, written, or even implied, which tells you how seriously the statute takes the concept. Most other states do not mandate one. That is the legal layer.

The practical layer is stricter. Banks routinely ask for the operating agreement to open the business account or approve a loan. Landlords, lenders, and buyers ask for it to prove who can sign for the company. Courts look at it first in any ownership dispute. A single-member LLC with no agreement looks, to every one of those audiences, like a person with a filing, which quietly undermines the separateness the LLC exists to create. Required or not, treat it as required.

The clauses, one by one

• Ownership percentages. Who owns what share of the company. Not always proportional to money contributed; say the number explicitly either way.
• Capital contributions. What each member put in, cash or property or work, and whether members can be required to put in more later. Silence here breeds the ugliest fights.
• Profit and loss distribution. How profits are split and when distributions happen. Ownership percentage is the default assumption; if your deal differs, write the difference down.
• Voting and management authority. Member-managed or manager-managed, which decisions need a simple majority, which need unanimity (selling the business, taking on major debt, admitting a member), and who can sign contracts and bind the company day to day.
• Adding and removing members. Whether a new member can be admitted, who approves it, and the narrow grounds, if any, for expelling one.
• Buyout and buy-sell terms. What happens when a member wants out: whether the company or the remaining members get first refusal, how the departing share is valued, and how it gets paid. This is the clause that decides whether an exit is a transaction or a lawsuit.
• Death, divorce, disability, and bankruptcy of a member. Whether their interest passes to a spouse or heir as an economic interest only or as full membership, and what buyout rights trigger automatically.
• Dissolution triggers. What events wind the company up, and who decides. Our dissolution guide covers the state side of closing.
• Amendment procedure. How the agreement itself changes, and at what vote. Without this clause, every change is negotiable from scratch.

Single-member vs. multi-member agreements

A single-member agreement is a short document with a different job. There is no partner to protect you from, so its work is external: it proves the company is a real, separate entity with its own rules, which supports the liability shield, satisfies the bank, and tells a future buyer, executor, or successor exactly what happens to the business if you are incapacitated or die. A page or two usually does it.

A multi-member agreement is a partnership-protection document wearing a plain name. Every clause above is a disagreement that has already happened to someone else's company. The time to decide how a departing member's share is valued is at formation, when everyone is friends and the share is worth little. Written then, the agreement is cheap insurance. Negotiated later, across a dispute, it is the most expensive document your company will ever produce.

Template, service, or attorney?

Formation services include operating agreement templates in many packages (Northwest includes one with its $39 formation; ZenBusiness includes a template from its Pro tier up), and free templates are everywhere. A template is a reasonable start for a single-member LLC or a simple two-member deal, provided you actually fill in every clause rather than signing the blanks. What a template cannot do is notice your specific risk: the member contributing property instead of cash, the spouse in a community property state, the buyout nobody can afford. Multi-member LLCs with uneven contributions, outside investors, or real assets are the cases where an hour with a business attorney pays for itself many times over. Never pay a service extra for a generic template while skipping the review; the document's value is in the decisions, not the paper.

Signing, storing, and changing it

Every member signs. Keep the signed original with your formation document and EIN letter, and give each member a copy. The agreement is amended the way the agreement itself prescribes (another reason the amendment clause matters), in writing, signed again. Update it when ownership changes, when management changes, or when you admit a member, not at tax time from memory. And when a bank or a state asks whether your records match the public filing, the agreement plus your annual report trail is what makes the answer easy.

Common questions