What Is an LLC?

A Limited Liability Company (LLC) is a business structure recognized under state law that combines elements of partnerships and corporations. It gives business owners — called members — personal asset protection while keeping taxes and paperwork relatively simple.

Unlike a sole proprietorship, where the owner and the business are legally the same entity, an LLC creates a separate legal entity. This means your personal bank accounts, home, car, and other assets are generally shielded from business debts and lawsuits directed at the company.

LLCs are governed by state law, so the exact rules vary depending on where you form your company. However, the core concept is the same everywhere: limited liability for owners, pass-through taxation by default, and flexible management options.

The LLC structure was first introduced in Wyoming in 1977 and has since become the most popular business entity type in the United States. According to IRS data, millions of new LLCs are formed every year, far outpacing corporations and partnerships.

The "limited liability" in LLC is the primary reason most people choose this structure. Here is what it means in practice:

When you operate as a sole proprietor, there is no legal separation between you and your business. If your business is sued, or if it cannot pay its debts, creditors can pursue your personal assets — your savings, your house, your personal vehicle.

With an LLC, a legal barrier called the corporate veil separates your personal assets from business liabilities. If the LLC faces a lawsuit or debt it cannot pay, creditors can generally only go after the assets owned by the LLC itself, not the personal assets of its members.

However, this protection is not absolute. Courts can "pierce the corporate veil" if you fail to maintain the LLC properly. Common reasons include:

• Commingling funds: Mixing personal and business money in the same bank account.
• Undercapitalization: Not providing the LLC with enough funding to reasonably operate.
• Ignoring formalities: Not maintaining an operating agreement, proper records, or separate finances.
• Fraud or misrepresentation: Using the LLC to commit fraud or deceive creditors.

To maintain your liability protection, always keep a separate business bank account, sign contracts in the name of the LLC (not your personal name), and maintain an operating agreement.

One of the biggest advantages of an LLC is its tax flexibility. The IRS does not have a specific tax classification for LLCs. Instead, you get to choose how your LLC is taxed.

Default Taxation (Pass-Through)

By default, a single-member LLC is taxed as a disregarded entity, meaning all profits and losses pass through to the owner's personal tax return (Schedule C of Form 1040). A multi-member LLC is taxed as a partnership, with each member reporting their share on their personal return.

This is called pass-through taxation because the business itself does not pay federal income tax. Profits are only taxed once, at the member's individual tax rate.

Electing S-Corp or C-Corp Taxation

LLCs can also elect to be taxed as an S-corporation or C-corporation by filing the appropriate forms with the IRS. An S-corp election can potentially reduce self-employment taxes for profitable businesses. Learn more in our LLC vs S-Corp comparison.

This flexibility is unique to LLCs. Sole proprietorships cannot elect corporate taxation, and corporations cannot easily switch to pass-through taxation without restructuring.

An LLC is a good fit for a wide range of business owners. Here are some common situations where forming an LLC makes sense:

• Freelancers and consultants who want to separate personal and business liability.
• E-commerce sellers who face product liability risk.
• Real estate investors who want to protect personal assets from property-related lawsuits.
• Small business owners with employees, contracts, or physical locations.
• Side-hustle entrepreneurs who are earning enough to justify the cost and want professional credibility.
• Multi-member ventures where two or more people are going into business together.

If you are currently operating as a sole proprietor and your business is growing — or if you face any meaningful liability risk — an LLC is usually worth the modest cost. See our LLC vs Sole Proprietorship comparison for a detailed breakdown.

Forming an LLC is straightforward in most states. Here is the general process:

1. Choose your state. Most people form in the state where they live and do business. Forming in another state (like Delaware or Wyoming) usually only makes sense for larger businesses with specific legal or tax strategies.
2. Pick a name. Your LLC name must be unique in your state and typically must include "LLC" or "Limited Liability Company." Check your state's business name database to confirm availability.
3. Appoint a registered agent. Every LLC must have a registered agent — a person or company authorized to receive legal and government documents on behalf of the LLC. You can serve as your own, but most owners use a professional service.
4. File Articles of Organization. This is the official formation document you submit to your state's Secretary of State (or equivalent office). It includes basic information like the LLC name, registered agent, and principal address.
5. Create an operating agreement. While not required in every state, an operating agreement is essential. It defines how the LLC will be managed, how profits are distributed, and what happens if a member leaves. Learn more in our operating agreement guide.
6. Get an EIN. An Employer Identification Number (EIN) is like a Social Security number for your business. You need one to open a business bank account, hire employees, and file taxes. It is free from the IRS.
7. Open a business bank account. This is critical for maintaining your liability protection. Never mix personal and business funds.

You can file everything yourself directly with your state, or use an LLC formation service to handle the paperwork. Formation services typically cost between $0 and $49, plus state filing fees. See our best LLC formation services for our top picks, or check out our LLC cost guide for a full breakdown.

Forming an LLC is not a one-time event. Most states have ongoing requirements to keep your LLC in good standing:

• Annual or biennial reports: Most states require you to file a periodic report (and pay a fee) to confirm your LLC's information is up to date. Fees range from $0 to over $300 depending on the state.
• Registered agent: You must maintain a registered agent at all times. If you use a professional service, this is typically $100 to $300 per year.
• Franchise or privilege taxes: Some states (like California and Texas) impose an annual franchise tax on LLCs regardless of income.
• Business licenses and permits: Depending on your industry and location, you may need local, state, or federal licenses to operate.
• Beneficial Ownership Information (BOI) report: Under the Corporate Transparency Act, most LLCs must file a BOI report with FinCEN. See our BOI report guide for details.