What Is an LLC Operating Agreement and Do You Need One?

An LLC operating agreement is the internal rulebook for your business. Learn what it covers, whether your state requires one, and how to write your own.

An operating agreement is the internal rulebook that governs how your LLC runs, from who owns what percentage to how profits and losses are split. It is not filed with the state in most cases, but it is one of the most important documents your business will ever have.

What an Operating Agreement Covers

Think of the operating agreement as the constitution of your LLC. It spells out the rules that owners agree to follow, so there is no confusion later about who decides what and who gets paid how much.

A complete operating agreement typically covers:

• Ownership percentages for each member
• How the LLC is managed, by members or by appointed managers
• Voting rights and how major decisions are made
• How profits and losses are distributed
• Rules for adding new members or transferring ownership
• What happens on a buyout, withdrawal, or death of a member
• How the LLC can be dissolved

Writing these rules down now prevents expensive disagreements later, especially when more than one person is involved.

Is an Operating Agreement Required?

Most states do not require you to file an operating agreement with the Secretary of State. A few states, including California, New York, and Missouri, do require LLCs to have one, even if it is never filed with the state.

Even where it is optional, skipping it is risky. Without a written agreement, your state's default LLC rules apply, and those defaults may not match what you and your partners intended. The document also helps preserve your limited liability protection in court.

Single-Member vs. Multi-Member Operating Agreements

A single-member LLC operating agreement is simpler, but still worth writing. It documents that you are the sole owner, confirms how you will manage the business, and helps keep your personal and business affairs clearly separate.

Multi-member agreements carry more weight. They define each owner's stake, how decisions get made, and what happens if a member wants out. Banks, investors, and buyers often ask to see this document before they work with you.

Why Banks and Investors Ask for One

When you open a business bank account, the bank may ask for your operating agreement to confirm who is authorized to sign. Investors and lenders treat it as proof that the business is run by clear, agreed-upon rules.

Without one, you may face delays opening accounts or raising money. With one, you look organized and credible from day one, which matters when you are asking others to trust your business.

How to Write an Operating Agreement

You do not need a lawyer to write an operating agreement, though one can help with complex situations. Many formation services and legal websites offer templates you can customize to fit your business.

1. List every member and their ownership percentage
2. Choose a member-managed or manager-managed structure
3. Decide how profits and losses are shared
4. Set voting rules for major decisions
5. Add buyout and dissolution terms
6. Have all members sign and date the document

Keep the signed original with your business records. You do not file it with the state, but you should be able to produce it when a bank, investor, or court asks.

Your operating agreement works hand in hand with your formation documents. Learn more about operating agreements, compare single-member LLC and multi-member LLC setups, and read our full guide to single-member LLCs.

Frequently Asked Questions

Does my LLC need an operating agreement?

Yes, in practice. Most states do not require you to file one, but banks, investors, and courts may ask to see it. A written operating agreement also protects your limited liability status and prevents disputes between owners. Even a single-member LLC benefits from having one on file.

What is an operating agreement for a single member LLC?

It is a written document that records you as the sole owner and sets out how the business is managed. Even with one owner, it helps keep personal and business finances separate and strengthens your liability protection. It also makes it easier to open a bank account and work with lenders.

Is an operating agreement required by law?

Most states do not require one, but a few, including California, New York, and Missouri, do. Even in states where it is optional, having one is strongly recommended because it protects your LLC and prevents disputes. It is never filed with the state, so you simply keep the signed copy with your business records.

What happens if an LLC has no operating agreement?

Your state's default LLC rules apply instead. Those defaults may not match what you intended, which can lead to disputes over ownership, profits, and management. You may also face delays with banks and investors who want to see the document.

Do banks require an operating agreement?

Many banks ask for an operating agreement when you open a business account, especially for multi-member LLCs. It confirms who is authorized to sign and how the business is structured. Having one ready makes the process much smoother. Without it, you may face delays or extra questions before your account is approved.