The Articles of Organization and the Operating Agreement are the two foundational documents of a limited liability company, and they do completely different jobs. The Articles of Organization are the short public filing that creates the LLC with the state. The Operating Agreement is the private contract among the owners that controls how the business is actually run. You need both: one makes the company exist, and the other decides who gets to make decisions, how profits are split, and what happens when something goes wrong.
What the Articles of Organization Do
An LLC does not exist until someone files Articles of Organization — called a Certificate of Formation or Certificate of Organization in some states — with the state’s business filing office. Once the state accepts the filing, the LLC becomes a recognized legal entity that can open bank accounts, sign contracts, and shield its owners from personal liability for business debts.
The required contents vary by state, but most filings include:
- The LLC’s name, which must include a designator like “LLC” or “Limited Liability Company” so anyone dealing with the business knows it has limited liability status.
- A registered agent with a physical street address in the state of formation to receive lawsuits and official correspondence. P.O. boxes do not qualify.
- A business purpose, which most owners state broadly to avoid needing to amend the filing later.
- Duration, which nearly all LLCs set as perpetual rather than giving an expiration date.
- In some states, whether the LLC will be member-managed or manager-managed.
Filing fees range from $35 to $500, with most states charging under $200. A handful of states also require the LLC to publish a formation notice in a local newspaper, which can add anywhere from $50 to over $2,000 depending on the jurisdiction.
Because the Articles are a public record, anyone — competitors, creditors, curious neighbors — can look them up through the state’s business registry and see the LLC’s name, registered agent, and formation date. That is by design. Outsiders need a reliable way to confirm the company exists and know where to serve legal papers.
What the Operating Agreement Does
The Operating Agreement is the internal contract among the LLC’s members. It is not filed with any government office, and states will not accept one even if you try to submit it.1U.S. Small Business Administration. Basic Information About Operating Agreements Banks, investors, and landlords may ask to see it during due diligence, but the general public has no right to it.
Where the Articles tell the state the LLC exists, the Operating Agreement tells the owners how they will work together. A well-drafted agreement typically covers:
- Ownership percentages, usually based on the value of cash or property each member contributed.
- How profits and losses are allocated. This does not have to mirror ownership percentages. Members can agree to split profits differently based on each person’s role or contribution.
- Capital calls: whether members can be required to contribute more money if the business needs it, and what happens if someone refuses.
- Buy-sell provisions covering the process and valuation formula when a member wants to leave, dies, becomes disabled, or gets divorced.
- How new members are admitted and how departing members transfer or sell their interests.
- Whether disputes go to mediation, arbitration, or court.
The Operating Agreement is arguably the more important document for the owners themselves. The Articles satisfy the state. The Operating Agreement protects the members from each other and from ambiguity.
How the Two Documents Compare
The clearest way to see the difference is to line them up by what each is for.
Audience. Articles of Organization address outsiders: the state, courts, lenders, anyone searching the public registry. The Operating Agreement addresses insiders: the members themselves and anyone they voluntarily share it with.
Privacy. Articles are a public record. Operating Agreements stay private, which keeps sensitive details like profit-sharing formulas, member compensation, and internal decision-making procedures out of competitors’ hands.
Filing. Articles must be filed with the state and come with a fee. Operating Agreements are signed internally and never submitted anywhere.
Content. Articles contain a short list of identifying facts about the company. Operating Agreements can run dozens of pages covering money, control, exits, and disputes.
Legal effect. The Articles bring the LLC into legal existence. The Operating Agreement is a binding contract among the members that courts enforce like any other contract.
Which Document Controls When They Disagree
Occasionally the two documents say different things. The Articles might describe the LLC as manager-managed while the Operating Agreement gives all members equal management authority. The answer to which document wins depends on who is asking.
For internal matters between members, the Operating Agreement generally controls. Under the framework most states follow, the Operating Agreement governs the rights and obligations among the members even if the Articles say something different. It is the members’ actual deal with each other, and courts respect that.
For third parties who relied on the information in the publicly filed Articles, the Articles take precedence. If a vendor signs a contract with someone the Articles identify as a manager, the LLC is bound even if the Operating Agreement says that person had no authority. Outsiders should not be penalized for trusting public records they had every right to rely on.
The practical lesson is to keep both documents consistent. Review the Operating Agreement whenever you amend the Articles, and the other way around. Contradictions between the two create exactly the kind of ambiguity that ends up in court.
What Happens If You Skip the Operating Agreement
Every state has an LLC statute that fills gaps when the Operating Agreement is silent or does not exist at all. These default rules are based on what legislators considered reasonable for a generic LLC, which may be very different from what you and your co-owners actually intended.
Under the model Uniform Limited Liability Company Act, which most states have adopted in some form, the defaults include:
- Equal management rights. Every member gets an equal vote regardless of how much they invested.2Bureau of Indian Affairs. Uniform Limited Liability Company Act (2006)
- Majority rule for ordinary business matters.
- Unanimous consent for extraordinary actions like adding a new member, going outside the ordinary course of business, or amending the Operating Agreement.2Bureau of Indian Affairs. Uniform Limited Liability Company Act (2006)
- No pay for member services. Members who work in the business are not entitled to compensation beyond their share of profits.
- Perpetual duration unless all members vote to dissolve.
The unanimous-consent default is where things get dangerous. If one member out of ten objects to admitting a new member, nobody new can join. And the Operating Agreement cannot be amended to change that rule without that same holdout’s approval. By the time members are fighting, it is too late to negotiate fair ground rules.
The Veil-Piercing Risk
Skipping the Operating Agreement also weakens the liability protection that made the LLC attractive in the first place. Courts can disregard the separation between you and your business — a process called “piercing the corporate veil” — when the LLC is not treated as a genuinely independent entity. The factors courts weigh include mixing personal and business funds, failing to maintain records, undercapitalizing the LLC, and neglecting basic formalities like having an Operating Agreement. A written agreement documenting capital contributions, financial procedures, and decision-making is evidence that the owners took the entity’s separateness seriously.
Single-Member LLCs Are Not Exempt
Solo LLC owners often skip the Operating Agreement because there is nobody to negotiate with. That is a mistake. Without one, a court evaluating whether to hold you personally liable for the LLC’s debts has less evidence that you treated the LLC as a separate entity. If the LLC looks indistinguishable from you personally, a judge is more likely to disregard the liability protection entirely.
A single-member Operating Agreement does not need to be complicated. It should document the member’s capital contribution, confirm how profits are distributed, establish that the LLC maintains separate finances, and outline what happens to the business if the owner dies or becomes incapacitated. Some states actually require all LLCs, including single-member ones, to adopt an operating agreement.
Keeping Both Documents Current
Neither document is a one-time task. Both can be amended, and the processes are very different.
Changes to the Articles of Organization require filing an amendment with the state. Common reasons include changing the LLC’s name, switching between member-managed and manager-managed structures, or updating the registered agent. Filing fees for amendments typically run between $25 and $60. Some changes, particularly registered agent updates, may require specific state forms rather than a general amendment filing. Ownership changes generally do not need to be reflected in the Articles. Members can transfer interests according to the Operating Agreement without notifying the state.
Changing the Operating Agreement is an internal process that does not involve any government filing. The agreement itself should specify the procedure, typically a written amendment signed by members holding a defined percentage of ownership interests. Under most state default rules, amending the Operating Agreement requires unanimous consent of all members, which is another reason to address the amendment process explicitly in the original document.
Separately, most states require LLCs to file periodic reports updating the state on the LLC’s current address, registered agent, and management. Filing fees range from nothing in some states to several hundred dollars in others, and a few states impose flat-rate franchise taxes alongside the report. Missing a filing deadline can result in late fees, loss of good standing, and eventually administrative dissolution, meaning the state revokes the LLC’s status. The Operating Agreement should assign responsibility for these filings, especially in a multi-member LLC where everyone assumes someone else is handling it.
One more housekeeping item that comes up right after formation: most LLCs need an Employer Identification Number from the IRS. An EIN is required if the LLC has more than one member, hires employees, or needs to file certain tax returns, and single-member LLCs often need one to open a business bank account. The IRS issues EINs free through its online application. Be cautious of third-party websites that charge for this service.3Internal Revenue Service. Get an Employer Identification Number