Definition
A limited liability company (LLC) is a business structure created under state law that gives its owners, called members, limited personal liability for the company's debts and obligations. An LLC blends the liability protection of a corporation with the flexibility and pass-through taxation of a partnership or sole proprietorship. Because it is formed under state law, the exact requirements for creating and operating an LLC differ from state to state.
Legal Meaning
The LLC is one of the most popular ways to organize a business in the United States because it offers a practical middle ground between simpler structures and full corporations. Its defining feature is limited liability: in general, if the business is sued or cannot pay its debts, creditors can reach the assets of the company but not the personal assets of the members, such as their homes or personal bank accounts.
An LLC is a separate legal entity from its owners. It can own property, enter contracts, sue and be sued, and continue to exist independently of any single member. The owners are called members, and the LLC can be managed by the members themselves (member-managed) or by appointed managers (manager-managed). The internal rules are usually set out in an operating agreement, a private contract among the members.
Because LLCs are creatures of state law, the filing documents, names, fees, annual requirements, and default rules vary by state. There is no federal LLC. For a broader look at choosing and running a business entity, see our business law practice area page.
Key Points
- An LLC is formed under state law, so requirements and fees vary by state
- Owners are called members and generally enjoy limited personal liability
- It can have a single member or multiple members
- By default, LLCs receive pass-through taxation, avoiding corporate-level tax
- An LLC can elect to be taxed as an S corporation or C corporation
- Management can be member-managed or manager-managed
- An operating agreement governs ownership, voting, and profit sharing
- Liability protection can be lost if owners ignore formalities or commit fraud
Real-World Example
Two friends, Aisha and Ben, start a landscaping business and form an LLC in their state by filing articles of organization with the secretary of state. They sign an operating agreement splitting ownership equally and open a separate business bank account.
A year later, a client sues the business after a worker accidentally damages their property. Because the business is an LLC, the lawsuit targets the company's assets, not Aisha's and Ben's personal savings or homes. Their personal assets are generally protected. However, because they kept business and personal finances completely separate and followed basic formalities, a court is far less likely to "pierce the veil" and hold them personally responsible. Their pass-through tax status also means the LLC's profits are reported on their individual tax returns rather than being taxed twice.
LLC vs. Corporation
| Feature | LLC | Corporation |
|---|---|---|
| Owners called | Members | Shareholders |
| Liability protection | Yes | Yes |
| Default taxation | Pass-through | Separate entity (C corp) |
| Management | Flexible (member or manager) | Directors and officers |
| Formalities | Generally fewer | More (meetings, minutes, bylaws) |
| Raising outside capital | Harder; no stock | Easier; can issue shares |
| Best for | Small to mid-size businesses | Companies seeking investors or going public |
How an LLC Works
Understanding the key building blocks of an LLC helps you decide whether it fits your goals.
Formation
You create an LLC by filing a formation document, often called articles of organization or a certificate of formation, with the state agency that handles business filings, usually the secretary of state, and paying the required fee. Most states require the LLC to designate a registered agent to receive legal documents.
Operating Agreement
Although not required in every state, an operating agreement is highly recommended. It spells out ownership percentages, how profits and losses are shared, voting rights, management structure, and what happens if a member leaves or the business dissolves. Without one, the state's default rules apply, which may not match the members' intentions.
Taxation
By default, the IRS treats a single-member LLC like a sole proprietorship and a multi-member LLC like a partnership, with profits flowing through to the members' personal returns. An LLC can instead elect corporate or S corporation tax treatment if that produces a better result.
Ongoing Requirements
Many states require annual or periodic reports and fees, and the LLC must keep its registered agent and contact information current. Maintaining the company in good standing is part of preserving its liability shield.
Related Terms
Start Your Business the Right Way
A business attorney can help you choose the right entity, file correctly, and draft a solid operating agreement
Explore Business LawWhen You Need a Lawyer
You can form a simple LLC on your own, but professional guidance is valuable when:
- You are unsure whether an LLC, corporation, or partnership best fits your goals
- You have multiple owners and need a clear, fair operating agreement
- You want to optimize your tax structure or consider an S corporation election
- You plan to raise outside investment or bring on partners
- Your business carries significant liability risk or operates in multiple states
- You are buying, selling, or dissolving a business, or facing a dispute among members
Before hiring counsel, our guides to understanding legal fees and how to choose a lawyer can help you find the right business attorney.
Frequently Asked Questions
What is a limited liability company (LLC)?
A limited liability company, or LLC, is a business structure created under state law that combines features of a corporation and a partnership. Its owners, called members, generally are not personally responsible for the company's debts and lawsuits, which is the "limited liability" feature. At the same time, an LLC offers flexible management and, by default, pass-through taxation, so profits are reported on the owners' personal tax returns rather than taxed at the company level.
What is the difference between an LLC and a corporation?
Both an LLC and a corporation provide limited liability, but they differ in structure and taxation. A corporation has a more rigid framework with shareholders, directors, and officers, and a traditional C corporation is taxed separately, which can lead to double taxation of profits. An LLC is more flexible, usually has fewer formalities, and is taxed by default as a pass-through entity, although an LLC can elect to be taxed as a corporation if that is advantageous.
How is an LLC taxed?
By default, a single-member LLC is taxed like a sole proprietorship and a multi-member LLC like a partnership, with profits and losses passing through to the members' personal returns. An LLC can also elect to be taxed as an S corporation or C corporation if that better fits its goals. Because tax treatment can significantly affect the cost of running a business, many owners consult a tax professional or business attorney before choosing.
Does an LLC really protect my personal assets?
An LLC generally shields members' personal assets from the company's business debts and liabilities, but that protection is not absolute. Courts can "pierce the corporate veil" if owners mix personal and business funds, fail to follow basic formalities, undercapitalize the business, or use the LLC to commit fraud. Members also remain personally liable for their own wrongful acts and for any debts they personally guarantee.
How do you form an LLC?
You form an LLC by filing articles of organization (sometimes called a certificate of formation) with the appropriate state agency, usually the secretary of state, and paying a filing fee. Most LLCs also adopt an operating agreement that governs ownership and management, and many states require ongoing steps such as annual reports or fees. Because formation requirements, fees, and rules vary by state, it is important to follow the procedures of the state where you organize.