Short answer: yes. Even if your state doesn't require it. Even if you're the only member. Even if your LLC is a side hustle that brings in $500 a month.
Longer answer: it depends on how much you care about keeping your personal assets protected and your business relationships clear. Which, if you formed an LLC in the first place, should be quite a lot.
Let me explain what an operating agreement is, which states actually make you have one, what should go in it, and why a free template is good enough for most people.
An operating agreement is an internal document that governs how your LLC operates. It's not filed with the state (in most cases). It's not public. It's a private agreement between the LLC's members — or, if you're a single-member LLC, between you and your business entity.
Think of it as the LLC's instruction manual. It spells out:
Without one, your state's default LLC laws fill in all those blanks for you. And those defaults might not match what you actually want.
Most states don't mandate it. But a handful do, and the penalties for not having one range from minor inconvenience to actual legal problems:
New York — Required by law. New York's LLC Act (Section 417) explicitly requires every LLC to adopt a written operating agreement within 90 days of filing. Failure to have one doesn't void your LLC, but it weakens your position in court if there's ever a dispute about how the business should operate.
California — Required by statute. California's Revised Uniform LLC Act requires an operating agreement, though it can be oral or written. Obviously, a written one is vastly more useful. California courts have used the absence of a written agreement as evidence that the LLC wasn't being run as a separate entity.
Delaware — Not technically required, but Delaware's LLC Act gives enormous deference to whatever the operating agreement says. Since Delaware courts will look to the operating agreement first when resolving disputes, not having one essentially means you're leaving everything to default rules — which, in Delaware, are heavily focused on the agreement.
Maine — Required by state law. Maine's LLC Act mandates that members adopt an operating agreement.
Missouri — Required. Missouri law references the operating agreement as a necessary governing document for the LLC.
Nebraska — Required by the Nebraska Uniform LLC Act.
Three reasons, and they're all practical:
1. It protects your limited liability. One of the main ways courts "pierce the corporate veil" — meaning they hold you personally liable for business debts — is by finding that you didn't treat your LLC as a separate entity. Having an operating agreement is evidence that you did. Not having one is evidence that maybe you didn't take the separation seriously.
This matters most for single-member LLCs, where courts are already more skeptical about whether the LLC is truly separate from the owner. An operating agreement, combined with a separate bank account and clean records, goes a long way toward maintaining that separation.
2. Banks want to see it. Try opening a business bank account or applying for a business credit card without an operating agreement. Many banks require one as part of the account opening process. They want to verify who's authorized to transact on behalf of the LLC.
3. It prevents disputes. For multi-member LLCs, the operating agreement is the difference between "we discussed how to handle this" and "well, I remember it differently." Disagreements about profit distribution, decision-making authority, and member departures are common — and without a written agreement, every disagreement becomes a potential lawsuit.
The specifics depend on whether you're a single-member or multi-member LLC, but every operating agreement should cover these basics:
If you have partners, these sections are where the operating agreement earns its weight in gold:
Voting and decision-making. How are major decisions made? Majority vote? Unanimous consent? Does each member get one vote, or are votes proportional to ownership? Define what constitutes a "major decision" requiring a vote versus day-to-day decisions a manager can make alone.
Profit distributions. When do members get paid? Monthly? Quarterly? Annually? Can the LLC retain earnings for growth, or does everything get distributed? This avoids the situation where one member wants to reinvest and another wants a payout.
Transfer restrictions. Can a member sell their stake to anyone, or do existing members get first right of refusal? What's the process for valuing a departing member's interest? Without this, a member could sell their share to someone you'd never want as a business partner.
Buyout provisions. What happens when a member dies, gets divorced, goes bankrupt, or simply wants out? Spell out the timeline for buyouts, the valuation method, and the payment terms. This is the clause people wish they'd written before they needed it.
Dispute resolution. Mediation before litigation? Binding arbitration? Which state's laws govern? Having a clear process for handling disagreements keeps conflicts from escalating into lawsuits.
If you're the only owner, your operating agreement doesn't need to be complicated. A two-page document covering the basics is enough. The main purposes are:
Free templates from formation services work perfectly for single-member LLCs. You don't need to pay a lawyer $500-$1,000 for this — fill in the template, sign it, date it, and keep it with your LLC records. The LLC filing checklist covers when to prepare this as part of the formation process.
For multi-member LLCs with any real money involved, I'd recommend spending $500-$2,000 on an attorney to draft or review your operating agreement. The template gets you 80% of the way there, but the last 20% — the nuances around buyout valuations, dispute resolution, and non-compete clauses — is where things get tricky.
A good business attorney will ask you questions you haven't thought of yet. What if one member gets divorced and their ex-spouse claims a share of the business? What if two members want to go in opposite directions and there's no majority? What if a member dies without a will?
These aren't hypotheticals. They're situations that happen to real businesses, and the cost of resolving them without an operating agreement is 10x what the lawyer charges to prevent them.
For more on when legal help is worth the expense, check our guide on whether you need a lawyer for your LLC.
Using a generic template for a complex partnership. If you and your partner are putting in different amounts of money, working different hours, or have different expectations about profit distribution — a one-size-fits-all template won't cover your situation. Customize it or get help.
Never updating it. Your operating agreement should change when your business changes. Added a new member? Updated. Changed your management structure? Updated. Moved to a new state? Check if the agreement still complies with that state's LLC laws. Forming in states like Wyoming or Nevada for tax advantages means your agreement needs to comply with their specific statutes.
Not signing it. An unsigned operating agreement is just a draft. Every member needs to sign and date it. Keep the original in a safe place and give copies to all members.
Making it too rigid. Your operating agreement should have a process for amending itself. Businesses evolve. If every change requires unanimous consent and you have a stubborn partner, you've created a straitjacket. Build in reasonable amendment procedures — like a two-thirds majority for most changes and unanimous consent only for the biggest decisions.
Free templates: Most LLC formation services include an operating agreement template. ZenBusiness, Bizee, and Northwest all provide them. Your state's Secretary of State website may also have sample agreements.
Online legal services: LegalZoom, Rocket Lawyer, and similar platforms offer customizable operating agreements for $35-$100. These are step up from a basic template, with guided questionnaires that help you think through the key provisions.
Business attorney: $500-$2,000 for a custom agreement. Worth it for multi-member LLCs, businesses with significant assets, or situations with complex ownership structures.
Get an operating agreement. It takes 20 minutes for a single-member LLC using a free template. It takes a few weeks and a few hundred dollars for a multi-member LLC working with a lawyer. Either way, it's a small investment compared to the headaches it prevents.
Your LLC exists to protect you. The operating agreement exists to protect your LLC. They work together, and skipping one weakens the other.
For state-specific operating agreement requirements and formation steps, browse our state-by-state LLC guides.