Operating Agreement

The governing document for an LLC that defines ownership structure, member rights, profit/loss distribution, and management rules. Similar to bylaws for a corporation. Every multi-member LLC should have one. It is where dynamic equity terms, vesting, and exit provisions are formalized.

Why it matters

Without an operating agreement, your LLC defaults to state law, which rarely reflects what the members actually intended. State default rules typically split ownership and profits equally among members, regardless of who contributed more capital, time, or expertise. An operating agreement overrides these defaults and creates a custom governance structure.

For startups using dynamic equity models, the operating agreement is especially important — it is where you formalize how contributions are tracked, how ownership percentages adjust, and what happens when a member leaves or the company converts to a fixed equity structure. Without these provisions in writing, any dispute about ownership will be resolved by state law defaults, which are almost certainly not what you want.

The operating agreement is also the document that investors, banks, and potential acquirers will review to understand how the LLC is governed. A well-drafted agreement signals that the founders approached their business relationship seriously and thought through the key contingencies.

How it works

An operating agreement typically covers several key areas: member capital contributions (cash, IP, services), ownership percentages and how they are calculated, how profits and losses are allocated and distributed, management structure (member-managed vs. manager-managed), voting rights and decision-making processes, transfer restrictions on membership units, what happens when a member wants to leave or is removed, and provisions for dissolving the LLC.

For dynamic equity startups, the operating agreement includes additional sections covering the contribution tracking methodology, multiplier rates for different types of contributions, the formula for calculating each member's ownership percentage, and triggers for converting to a fixed split. The agreement can also include vesting schedules, buyback provisions, and non-compete clauses.

Unlike a corporation's bylaws, which are relatively standardized, operating agreements offer enormous flexibility. Members can agree to almost any arrangement they want, as long as it does not violate state law. This makes it essential to get the agreement right from the start — changing it later requires consent from all members, which can be difficult if relationships have become strained.

History and origin

The LLC as a legal entity was first recognized by Wyoming in 1977 and quickly spread to other states as entrepreneurs and their attorneys recognized its flexibility. The operating agreement emerged as the natural governing document for this new entity type — less formal than corporate documents but more contractually flexible. The Revised Uniform Limited Liability Company Act (RULLCA), adopted by many states, formalized the operating agreement's central role in LLC governance.

For decades, operating agreements were primarily associated with real estate partnerships and professional service firms rather than technology startups, which overwhelmingly incorporated as C-corporations for tax and fundraising reasons. This began to change in the 2010s as dynamic equity models — which require the kind of flexible ownership adjustment that LLCs allow more easily than corporations — became more popular among bootstrapped and small-team startups.

The growth of online legal services (LegalZoom, Clerky, Stripe Atlas) made LLC formation and basic operating agreements accessible to founders without traditional legal support. However, the limitations of template operating agreements for startups with dynamic equity arrangements, complex contribution tracking, or unusual governance needs have maintained demand for custom agreements drafted by attorneys familiar with startup structures. The operating agreement remains one of the most important — and most frequently underestimated — legal documents a startup produces.

Frequently asked questions

What is an operating agreement for an LLC?

An operating agreement is the primary governing document for a limited liability company (LLC). It establishes the rules for how the LLC is owned and managed, including how ownership is allocated among members, how profits and losses are distributed, who has authority to make decisions, and what happens when a member leaves or wants to transfer their interest.

Is an operating agreement legally required?

Most states do not legally require LLCs to have a written operating agreement, though several states — including California, Delaware, Maine, Missouri, and New York — do require one. However, having an operating agreement is strongly recommended for all multi-member LLCs regardless of state requirements. Without one, the LLC is governed entirely by the state's default LLC statutes, which rarely reflect the members' actual intentions.

What happens if an LLC does not have an operating agreement?

Without an operating agreement, the LLC falls back on the state's default LLC statutes. Most state default rules split ownership and management rights equally among members regardless of actual contributions, require unanimous consent for major decisions, and provide limited flexibility for profit distributions. For a startup where one founder works full-time and another part-time, equal defaults are almost always contrary to what the founders intended.

What should a startup's operating agreement include?

A startup's operating agreement should cover: member capital contributions and initial ownership percentages, how ownership is calculated and adjusted (especially for dynamic equity), profit and loss allocation, distribution policies, management structure, voting rights, transfer restrictions on membership units, vesting schedules and buyback provisions, what happens when a member leaves, and how the agreement can be amended.

How is an operating agreement different from corporate bylaws?

Corporate bylaws govern the internal rules of a corporation but operate within the more rigid framework of corporate law. An operating agreement can customize virtually any aspect of how the LLC operates, including non-proportional profit distributions and custom management arrangements. Operating agreements are also contractual agreements between members, giving them a stronger contractual basis than bylaws.

Can an operating agreement be amended?

Yes, but the process is governed by the amendment provisions in the operating agreement itself. Most operating agreements require unanimous consent or a supermajority vote to amend. This is why getting the agreement right from the start matters — changing it later requires everyone's buy-in, which can be difficult if there are disagreements among members.

Do I need a lawyer to write an operating agreement?

For a simple single-member LLC, template operating agreements are often sufficient. For multi-member startups — especially those using dynamic equity, vesting, or complex profit distribution arrangements — working with a business attorney is strongly recommended. The operating agreement is the foundational legal document of your business relationship with your co-founders. The cost of a well-drafted agreement is almost always less than the cost of resolving a dispute that a proper agreement would have prevented.

Learn more

• Founder agreements: what to include and why each clause matters
• Why an LLC is the best structure for dynamic equity
• When to convert from dynamic equity to a fixed cap table
• How to split equity in a startup: the complete guide

Related terms

• Membership Units (LLC)
• Founder Equity Split
• Cap Table
• Dynamic Equity
• Vesting
• IP Assignment