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DefinitionAn LLC Operating Agreement is the written contract among the members of an LLC, governing how the LLC is run. It covers ownership, capital contributions, profit and loss allocation
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Plain English Guide
What Is An Operating Agreement · File.Business

What is an Operating Agreement? The internal rulebook for an LLC.

An LLC Operating Agreement is the written contract among the members of an LLC, governing how the LLC is run. It covers ownership, capital contributions, profit and loss allocations, voting, management, transfer restrictions, buy-sell provisions, and dissolution. It is not filed with the state, but every bank, lender, and investor will ask to see it.

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Formal Definition

An LLC Operating Agreement is the internal governing document of a Limited Liability Company. It is a contract among the members (owners) of the LLC that sets out how the LLC operates: ownership percentages, capital contributions, profit/loss allocation, voting rules, management structure, transfer restrictions, buy-sell provisions, and dissolution procedures.

In plain English

Here is what that actually means.

Most US states do not legally require an LLC to have an Operating Agreement. However, every serious business will face situations where one is needed: opening a business bank account, applying for a loan, taking on investors, dissolving the entity, defending the liability shield in court. Banks in particular will not let you open an account without one.

For a single-member LLC, the Operating Agreement is short and procedural: documents the ownership, management style, and basic operating rules. It establishes that the LLC is a separate entity from the owner, which is critical for liability protection.

For a multi-member LLC, the Operating Agreement is the most important internal document the LLC has. It defines the partnership: who owns what, how decisions are made, how profits are split, what happens when a member leaves, dies, or wants to sell. A well-drafted multi-member Operating Agreement prevents almost every common partnership dispute.

Key facts

The four things to know.

Internal document
Not filed with the state; lives in your records
Required by banks
Every business bank will ask to see it
Customizable
Default state rules apply only where the Operating Agreement is silent
Critical for multi-member
Becomes the partnership contract
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Who needs this

Common situations.

Every LLC Single-member or multi-member, every LLC should have one.
Banks and lenders Will not open accounts or extend credit without one.
Investors Always review the Operating Agreement before investing in an LLC.
Real estate investors Lenders for property-holding LLCs require Operating Agreements.
Estate planners Operating Agreements with transfer-on-death provisions help with estate transitions.
How it compares

Related concepts side by side.

Operating Agreement vs Articles of Organization
Articles are filed publicly with the state and contain bare-minimum info. Operating Agreement is internal and contains the full governance rules.
Operating Agreement vs Bylaws
Operating Agreements are for LLCs. Bylaws are for Corporations. Same function: internal governance.
Operating Agreement vs Partnership Agreement
Partnership Agreements govern general partnerships and LPs. Operating Agreements govern LLCs. Similar content; different entity type.
Operating Agreement vs Shareholder Agreement
Shareholder Agreements govern Corporation shareholders. Operating Agreements govern LLC members. Each is the contract among the owners of the respective entity.
FAQ

Common questions.

Do I need an Operating Agreement for a single-member LLC?
Most states do not require one, but every business bank, lender, and investor will ask for one. Having one in place also helps maintain the liability shield in court.
Can I use a template?
Yes, for most single-member LLCs and many simple multi-member LLCs, a state-appropriate template is fine. We include one with every formation. For complex multi-member structures, attorney-drafted is worth the cost.
Does the Operating Agreement need to be filed with the state?
No. The Operating Agreement is internal. You keep it in your records. Some banks and lenders will ask to see a copy.
Can the Operating Agreement be amended?
Yes. Amendments require the consent specified in the agreement itself (often majority or unanimous consent of members). Update and re-sign the agreement; it stays in your records.
What if I do not have an Operating Agreement?
Default state LLC law applies. State defaults are usually reasonable but may not match your intentions: profit splits, voting rules, member admission, and dissolution all default to state law.
Should the Operating Agreement be notarized?
No state requires notarization. However, getting member signatures notarized adds an extra layer of authentication, useful if a dispute arises later.
Can the Operating Agreement override state law?
For most provisions, yes. Operating Agreements can deviate from state defaults on profit splits, voting rules, transfer restrictions, and most governance provisions. A few state-law rules are mandatory (e.g., fiduciary duties in some states).
How long should an Operating Agreement be?
Single-member: 5 to 15 pages typically. Multi-member: 20 to 50+ pages. Complex multi-member with capital classes, vesting, and buy-sell provisions can be longer.
Does an Operating Agreement need to be signed by all members?
Yes. Every member should sign. Unsigned Operating Agreements are not binding.
Can I write my own Operating Agreement?
For simple single-member LLCs, yes. For multi-member or complex structures, use a template or have an attorney draft. We provide attorney-reviewed templates with every formation.
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Keep reading

Related guides.

Operating Agreement Guide (Blog)→ Form an LLC for $0→ Multi-Member LLC→ Single-Member LLC→

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