Does your LLC need an operating agreement?

What the document actually is

Forming an LLC creates the entity: you file articles of organization with the state and the company exists. The operating agreement is separate and internal — it is the contract among the members about how the company is run. It is not filed anywhere, usually not public, and in most states nobody will ever ask whether you have one until it matters.

The distinction is worth being precise about, because people routinely believe the state filing did this job.

Where it is actually mandatory

Five states require an LLC to adopt and maintain an operating agreement: California, Delaware, Maine, Missouri and New York. New York is the strictest in form, requiring adoption within 90 days of formation. Nothing dramatic happens the day you miss it — no fine arrives in the post — but the obligation exists, and the absence becomes visible at precisely the wrong moments: a financing, a sale, a dispute.

In the other forty-five states it is optional. That word does a lot of misleading work, because the alternative is not "no rules" — it is your state's default LLC statute, applied to your company whether it fits or not.

Why a single-member LLC still needs one

This is the case people argue about. If you are the only owner, who exactly are you contracting with? The answer is that the document is not doing its work as a negotiation — it is doing it as evidence and as machinery.

• It evidences separateness. The liability shield exists because the LLC is a distinct entity. Where an owner treats it as a personal account, courts can disregard the separation and reach personal assets. An operating agreement, together with a separate bank account and clean records, is the primary evidence that you did not.
• Banks and processors ask for it. Business accounts, credit lines, merchant accounts and commercial leases routinely require it to establish who has authority to act for the company.
• It proves authority. With one member there is no ambiguity to you, and considerable ambiguity to everyone else. The agreement is what a counterparty relies on when your signature binds the company.
• It overrides unhelpful defaults. State statutes cover dissolution, distributions and transfer on death with generic provisions. A single-member LLC with no succession clause can leave a business in probate limbo while nobody has authority to operate it.
• It matters at exit. Any buyer, investor or lender will ask. Producing one written years ago is a different conversation from producing one drafted last week during diligence.

The clauses that matter with more than one owner

Multi-member LLCs fail in predictable ways, and almost all of them are addressable in advance for the cost of a conversation nobody enjoys having early.

1. 1

   Ownership and capital

   Each member's percentage, what they contributed, and whether contributions were cash, property or services. Then: what happens if more capital is needed — is anyone obliged to contribute, and what happens to the percentages of a member who cannot?

2. 2

   Management and authority

   Member-managed or manager-managed, and who can bind the company. Set a spending threshold above which one person cannot act alone, and list the decisions requiring unanimity — taking on debt, admitting a member, selling the business, changing the agreement.

3. 3

   Distributions

   How and when profits are distributed, and separately, whether the company must distribute enough for members to pay tax on income allocated to them. Pass-through taxation can allocate taxable income to a member who received no cash, which is an unpleasant surprise the first year it happens.

4. 4

   Transfer restrictions

   What happens when someone wants to sell, or dies, or divorces, or goes bankrupt. Right of first refusal to the company, then the other members. Without this you can find yourself in business with a co-owner's ex-spouse or their estate.

5. 5

   Departure and valuation

   How a leaving member is bought out and, critically, how the price is determined — a formula, an agreed multiple, or a named independent valuer. Agreeing the method in advance is what prevents the argument, because at the moment of departure the two sides have opposite interests in the number.

6. 6

   Deadlock

   For a 50/50 company, what breaks a tie. Mediation, a casting vote on defined matters, a buy-sell mechanism where one names a price and the other chooses to buy or sell at it. Without something, a deadlocked LLC can only be resolved by dissolving it.

The 50/50 split deserves particular attention. It feels fair at the outset and it has no way to resolve a disagreement, which is exactly what an operating agreement exists to prevent.

What happens without one

Your state's LLC act supplies the missing terms. Defaults vary, and the common ones tend to be unwelcome.

• Profits split by default rule, not by intention. Some states default to equal shares regardless of capital contributed, which is not what a member who funded most of it expects.
• Every member may bind the company. Absent a stated management structure, member-managed is often the default, and any member can contract on the company's behalf.
• No transfer restrictions. An interest can pass to a spouse, an heir or a creditor without the other members having any say.
• Dissolution triggers you did not choose. In some states the death or withdrawal of a member can force dissolution absent contrary agreement.
• No buy-out mechanism. A departing member and a remaining one have no agreed way to value the interest, which is how these become litigation.

Keeping it real after you sign it

If your company has multiple owners with meaningfully different roles or investment, look at a shareholder agreement alongside it — the two overlap, and the drafting question is which document carries the ownership terms rather than whether they are written down at all. And before signing anything with a co-owner, how to read a contract applies here as much as to anything a stranger sends you.