What Is an LLC Operating Agreement and What Should It Include?

An LLC operating agreement is the internal contract among the owners (members) of a limited liability company that sets the rules for how the business is owned, managed, divided, and eventually wound down. At a minimum, it should cover ownership percentages, capital contributions, how profits and losses are split, who manages the company, how major decisions are voted on, what happens when a member leaves, and how the LLC can be dissolved. Most states do not file this document — it stays with your records — but it controls how your business actually runs.

This article is general legal information, not legal advice. Laws vary by state and situation, and reading it does not create an attorney-client relationship. For advice about your case, talk to a licensed attorney.

Key Takeaways

• An operating agreement is the LLC's governing document — the rough equivalent of corporate bylaws plus a shareholder agreement, combined into one contract among the members.
• Without one, your state's default LLC statute fills the gaps, and those default rules often do not match what the owners actually want (for example, splitting profits by ownership percentage rather than by effort or contribution).
• A few states legally require an operating agreement (California requires LLCs to adopt one); most do not, but having one is strongly recommended even for single-member LLCs.
• Core provisions include ownership and capital contributions, profit/loss allocation, management structure, voting thresholds, transfer restrictions, buyout (buy-sell) terms, and dissolution procedures.
• A signed, followed operating agreement helps reinforce the LLC's separate legal existence, which supports the liability shield that protects your personal assets.

What an LLC Operating Agreement Actually Is

An operating agreement is the internal governance document for a limited liability company. It is a private contract among the members — it is generally not filed with the state and is not part of the public record the way your Articles of Organization are. Your Articles of Organization create the LLC in the eyes of the state; your operating agreement decides how that LLC is run day to day.

Think of it as the rulebook for your business. It answers questions like: Who owns what? Who can sign contracts? How do we make big decisions? What happens if an owner wants out, dies, or stops contributing? When those questions come up — and in a multi-owner business, they will — the operating agreement is the first document everyone reaches for.

If you want a refresher on how the operating agreement fits into the larger picture of starting and running a company, see our pillar guide, Business Law: A Complete Guide for Small Business Owners, and our step-by-step walkthrough on how to form an LLC.

Do you legally need one?

Most states do not require a single-member LLC to have an operating agreement, and many do not require one for multi-member LLCs either. A handful of states do require LLCs to adopt one — California is the most commonly cited example, requiring an operating agreement for its LLCs (it may be oral or written, though written is strongly preferred). Because requirements vary by state, you should verify your own state's LLC act through your Secretary of State or a licensed attorney rather than assuming.

Legal requirement aside, almost every business lawyer will tell you to have one. For a multi-member LLC, operating without an agreement is a genuine risk. Even for a single-member LLC where there is no one to negotiate with, the document reinforces that the LLC is a separate legal entity and helps preserve the liability protection that is the whole point of forming an LLC.

What Happens If You Do Not Have One

If your LLC has no operating agreement, your state's default LLC statute governs the business automatically. The default rules act as a fallback — but they are written for the average case, not for your specific deal.

A common surprise: many state default rules allocate profits and losses in proportion to ownership percentage. If you and a co-owner each own 50% but one of you put in all the startup cash and the other does all the work, the default split may not reflect the bargain you intended. Other default rules govern voting, the ability to bring in new members, and what happens when someone leaves — and you may not like the answers. Writing your own operating agreement lets you override those defaults with terms you and your co-owners actually chose.

The Core Provisions Every Operating Agreement Should Include

The exact contents depend on your business, but a thorough agreement generally covers the following areas. The table below summarizes them, and the sections after it explain the trickier ones.

Provision	What it addresses
Company basics	LLC name, principal address, registered agent, purpose, and duration
Members and ownership	Who the members are and each member's ownership percentage (membership interest)
Capital contributions	What each member contributes (cash, property, services) and whether more can be required later
Profit and loss allocation	How profits and losses are divided and when distributions are paid
Management structure	Member-managed vs. manager-managed, and who has authority to act
Voting and decisions	Voting weight per member and the thresholds needed for ordinary vs. major decisions
Transfer restrictions	Whether a member can sell or assign their interest, and any approval or right of first refusal
Buy-sell / exit terms	What happens on death, disability, divorce, bankruptcy, retirement, or a desired exit
Dispute resolution	How deadlocks and disputes are handled (mediation, arbitration, buyout, tiebreaker)
Dissolution	How and when the LLC is wound down and assets distributed
Amendments	How the agreement itself can be changed

Ownership and capital contributions

Spell out each member's ownership percentage and exactly what they are contributing to earn it — cash, equipment, real estate, intellectual property, or services. Record dollar values where you can. Also address whether members can be required to contribute additional capital later (a "capital call"), and what happens to a member who cannot or will not contribute when asked. These clauses prevent the "but I thought I owned half" arguments that derail young businesses.

Management structure

LLCs come in two flavors. In a member-managed LLC, all members participate in running the business and generally have authority to act on the company's behalf. In a manager-managed LLC, one or more designated managers run things while other members are more passive investors. Your operating agreement (and often your Articles of Organization) should state which model you are using and define who has authority to sign contracts, open accounts, and bind the company. If someone signs a contract without actual authority, it may not bind the LLC at all — so clarity here matters. For help comparing this against a corporate board-and-officer structure, see LLC vs. Corporation: Which Business Structure Is Right for You?.

Voting and major decisions

Decide how votes are weighted (per capita, or by ownership percentage) and what threshold different decisions require. Routine operations might need a simple majority; major moves — taking on debt, admitting a new member, selling the business, or amending the agreement — often warrant a supermajority or unanimous vote. In a 50/50 LLC, also plan for deadlock: if the two equal owners cannot agree on a major decision and there is no tiebreaker, the business can freeze. Well-drafted agreements include a deadlock-breaking mechanism, such as a designated tiebreaker, mediation, a buyout option, or a dissolution trigger.

Transfer restrictions and the buy-sell provision

You probably do not want a co-owner selling their stake to a stranger without your say. Transfer restrictions can require the other members' approval or give the LLC and remaining members a right of first refusal before any sale.

Closely related is the buy-sell (or buyout) provision — sometimes a separate buy-sell agreement. It sets the rules for what happens to a member's interest when a trigger event occurs: death, disability, divorce, bankruptcy, retirement, or a voluntary exit. A good buy-sell clause says who can buy the departing member's interest (the remaining members, the company itself, or a third party), how that interest will be valued, and on what payment terms. Buy-sell arrangements are often funded with life insurance on each owner. Skipping this is one of the most expensive mistakes co-owners make, because it leaves valuation and process to be fought over at the worst possible moment.

Dissolution

Finally, the agreement should describe how the LLC can be dissolved — what vote is needed, how debts and taxes get paid before anything is distributed, and how any remaining assets are split among members. If you ever wind the company down, you will follow this section (and, where it is silent, your state's default rules).

How the Operating Agreement Fits Into Forming Your LLC

Drafting the operating agreement is one step in a larger formation process. A typical sequence looks like this:

1. Choose and clear your LLC name with the Secretary of State.
2. Appoint a registered agent with a physical address in your state.
3. File your Articles of Organization (also called a Certificate of Formation or Certificate of Organization) and pay the state filing fee.
4. Draft and sign your operating agreement — the step this article covers.
5. Get an EIN from the IRS (free at IRS.gov; most banks require it to open a business account).
6. Open a business bank account. Banks typically ask for your EIN, Articles of Organization, operating agreement, and a government-issued ID.
7. Handle licenses, permits, and any required annual reports going forward.

Notice that the operating agreement shows up again at the bank: lenders and banks routinely ask to see it. It is a working document, not a formality you file and forget. For the full walkthrough, read How to Form an LLC: A Step-by-Step Guide. If you are still weighing entity types, our business entity selection tool can help you compare options before you commit.

Important Deadlines and Timing

There is usually no government deadline for adopting an operating agreement itself — but the events around it have timing that matters, and the specifics vary by state, so verify them.

• State filing deadlines and fees for Articles of Organization and annual reports are set by each state and change periodically. Missing an annual report can lead to administrative dissolution of your LLC. Confirm current dates and amounts directly with your Secretary of State.
• Tax elections (for example, an LLC choosing to be taxed as an S corporation) have firm IRS deadlines. Verify current requirements at IRS.gov.
• Update the agreement promptly whenever ownership or management changes. An out-of-date operating agreement can be worse than none, because it states terms no one is actually following.

Treat every date above as something to verify, not as legal certainty — deadlines differ by state and can change.

Common Mistakes

• Using a generic template without customizing it. Free templates ignore your ownership split, your capital arrangement, and your exit plan. The default boilerplate may directly contradict your deal.
• Skipping the buy-sell and deadlock provisions. These feel unnecessary when everyone gets along — and they are exactly what you will wish you had when someone gets sick, divorced, or wants out.
• Never signing it. An unsigned draft sitting in a folder may carry little weight. Have every member sign and keep a copy with your records.
• Letting it go stale. Failing to update the agreement after ownership changes creates conflicts between what is written and what is happening.
• Ignoring corporate formalities. Courts can "pierce the corporate veil" and hold owners personally liable when members commingle personal and business funds, ignore formalities, or treat the LLC as an alter ego. Having and following an operating agreement, keeping a separate business bank account, and documenting major decisions all help preserve your liability shield.

When to Talk to a Lawyer

You can find templates online, but several situations strongly call for professional drafting or review:

• Any multi-member LLC, where the stakes of getting ownership, voting, and exit terms wrong are high.
• LLCs with investors, outside capital, or real estate holdings.
• Professional-service LLCs subject to special state rules.
• Any time members have unequal contributions of money versus work, or want a non-standard profit split.
• When you are buying into or out of an existing LLC — see How to Buy a Small Business: A Step-by-Step Legal Guide for the bigger transaction picture.

Because the operating agreement interacts with contracts you sign on the company's behalf, it is also worth understanding the basics of business contracts generally — our guide on what should be in a business contract is a good companion. You can also browse vetted business law attorneys in our directory when you are ready to talk to someone.

Costs and Fees

What you pay depends on whether you go it alone or hire help:

• DIY: The agreement itself has no government filing fee, since it is not filed. Your out-of-pocket cost is mainly the state filing fee for the Articles of Organization, which varies widely by state — verify the current fee with your Secretary of State.
• Flat-fee drafting: Many business attorneys offer flat fees for standard work like LLC formation and operating agreement drafting. Ask up front.
• Hourly: Experienced business attorneys commonly bill in the range of a few hundred dollars per hour or more, depending on region and complexity. For a heavily customized, multi-member or investor agreement, hourly work may be the norm.

Always confirm fee structure before engaging, and ask whether a flat-fee package covers your situation. Some state bar associations run lawyer referral services that offer reduced-cost initial consultations.

State and Local Differences

Several things about operating agreements turn on your state:

• Whether one is legally required (some states require it; most do not).
• What default rules apply if you have no agreement — profit allocation, voting, and transfer rules differ.
• Naming and filing requirements for the underlying LLC, including what your Articles must contain and whether member names are disclosed.
• Annual report and franchise tax obligations that keep the LLC in good standing.

Verify all of these through your state's Secretary of State and a licensed attorney in your state. Do not assume a rule you read about another state applies to yours.

Helpful Resources

• Your state's Secretary of State — official source for LLC filing requirements, fees, annual reports, and (in some states) whether an operating agreement is required.
• Internal Revenue Service (IRS.gov) — to obtain an EIN (free) and to understand entity tax classification and election deadlines.
• U.S. Small Business Administration (SBA) — general guidance on choosing and registering a business structure.
• Your state and local bar associations — many run lawyer referral services for business law matters.

Frequently Asked Questions

Do I need an operating agreement for a single-member LLC?

In most states it is not legally required for a single-member LLC, but it is strongly recommended. It reinforces that the LLC is a separate legal entity (which helps protect your personal assets), sets clear rules for how the business runs, and is often requested by banks and lenders. A few states require one regardless of how many members you have. Verify your state's rule.

What happens if my LLC never had an operating agreement?

Your state's default LLC statute governs the business by default. Those rules cover profit splits, voting, transfers, and dissolution — but they may not match what you and your co-owners intended. For single-member LLCs this is lower-risk; for multi-member LLCs, operating without an agreement is a meaningful risk you can fix by adopting one now.

Is an operating agreement filed with the state?

Generally no. Unlike the Articles of Organization, the operating agreement is a private internal document that stays with your company records and is shared with members, banks, and advisors as needed. It is not usually part of the public record. Filing requirements vary by state, so confirm yours.

What is the difference between Articles of Organization and an operating agreement?

The Articles of Organization (sometimes called a Certificate of Formation or Organization) is the public document you file with the state to legally create the LLC. The operating agreement is the private contract among the members that governs how the LLC is run internally. You need the first to exist; you want the second to function smoothly.

Can we change our operating agreement later?

Yes. A well-drafted agreement includes an amendment provision stating what vote is required to change it — often a supermajority or unanimous member vote. Document amendments in writing, have members sign, and keep the updated version with your records. Update it whenever ownership or management changes.

How is an operating agreement different from a buy-sell agreement?

An operating agreement is the broad governing document for the LLC. A buy-sell (or buyout) agreement specifically addresses what happens to a member's interest on trigger events like death, disability, divorce, bankruptcy, or exit — who buys it, how it is valued, and on what terms. The buy-sell terms can live inside the operating agreement or in a separate, related contract.

Does having an operating agreement protect my personal assets?

It helps, but it is not a guarantee. The liability shield comes from forming and properly maintaining the LLC. Courts can pierce the corporate veil and hold owners personally liable when they commingle funds, ignore formalities, or use the entity to commit fraud. Having and following an operating agreement, keeping separate business finances, and documenting major decisions all support the shield.

Can I write my own operating agreement?

You can, and for a simple single-member LLC a carefully customized template may be reasonable. But generic templates often miss state-specific rules and your actual deal terms. For any multi-member LLC, investor involvement, real estate, or unequal contributions, having a business attorney draft or review the agreement is well worth the cost.

Talk to a Business Lawyer

An operating agreement is one of the most important documents your LLC will ever have, and the cost of getting it wrong shows up at the worst times — during a dispute, a death, or an exit. If you are forming a multi-owner company, bringing on investors, or simply want confidence that your agreement reflects your real deal and your state's law, talk to a licensed business law attorney. You can start by connecting with business law attorneys in our directory.