An LLC, or limited liability company, is a business structure that separates your personal assets from your business debts and legal obligations. If someone sues your business or it can’t pay its bills, your house, car, savings, and other personal property are generally off-limits. LLCs combine the liability protection of a corporation with simpler tax treatment and fewer formalities, which is why they’re the most popular business structure for new small businesses in the United States.
How Liability Protection Works
The core benefit of an LLC is right in the name: limited liability. When you operate as a sole proprietorship (meaning you just do business under your own name with no formal structure), there’s no legal separation between you and the business. A lawsuit or unpaid debt can reach your personal bank accounts, your home equity, and anything else you own.
An LLC creates a legal wall between business and personal assets. Think of it like an egg carton. If one egg breaks, the mess stays in that one slot instead of spreading to the others. If your LLC owns a rental property and a tenant sues, the plaintiff can go after the LLC’s assets and its insurance policy, but your personal savings and other properties sit behind that wall.
That protection has limits, though. It only covers liabilities that originate from activities inside the LLC. If you personally cause a car accident, a plaintiff can pursue your ownership interest in LLCs you hold, because the claim started outside the business. The wall works in one direction: it shields you from business problems, not the other way around.
Single-member LLCs (those with just one owner) generally receive less robust protection under most state laws than multi-member LLCs. Courts are more willing to look past the LLC structure when only one person is involved, especially if the owner hasn’t kept business and personal finances clearly separated.
How LLCs Are Taxed
An LLC doesn’t have its own tax category. Instead, the IRS lets you choose how your LLC will be taxed, and the default depends on how many owners (called “members”) you have.
A single-member LLC is treated as a “disregarded entity” for income tax purposes. That means the IRS essentially ignores the LLC and taxes all profit on your personal return, just like a sole proprietorship. You report business income and expenses on Schedule C. You still owe self-employment tax (Social Security and Medicare) on your net profit.
A multi-member LLC defaults to partnership taxation. The LLC itself doesn’t pay income tax. Instead, it files an informational return (Form 1065), and each member receives a Schedule K-1 showing their share of profits and losses, which they report on their personal returns.
If either default doesn’t suit your situation, you can elect a different classification by filing Form 8832 with the IRS. This lets an LLC be taxed as a C corporation. Many LLCs also elect S corporation tax treatment (using Form 2553), which can reduce self-employment taxes once the business is earning enough to justify paying yourself a reasonable salary. The election must be filed within 75 days before or 12 months after the date you want it to take effect.
Forming an LLC
LLCs are created at the state level, not the federal level. The basic process is similar everywhere, though fees and paperwork vary.
- Choose a name. Your LLC name must be distinguishable from other businesses registered in your state. Most states require the name to include “LLC” or “Limited Liability Company.”
- File articles of organization. This is the founding document you submit to your state’s business filing office (usually the secretary of state). It includes basic information: the LLC’s name, address, registered agent, and whether it will be member-managed or manager-managed.
- Designate a registered agent. Every LLC needs a registered agent, a person or service with a physical address in the state who can receive legal documents on the LLC’s behalf.
- Get an EIN. An Employer Identification Number from the IRS is free and takes minutes to obtain online. You’ll need it to open a business bank account, hire employees, and file taxes.
- Open a business bank account. Keeping business money separate from personal money is essential. Mixing the two (called “commingling”) is one of the fastest ways to lose your liability protection, because a court may decide the LLC isn’t truly a separate entity.
Initial state filing fees typically range from about $35 to $500. Many states also require annual or biennial reports with their own fees, and some impose a flat annual tax or franchise fee on LLCs regardless of income. Missing these deadlines can result in penalties or even administrative dissolution of your LLC, so it’s worth marking them on your calendar the day you form the business.
The Operating Agreement
An operating agreement is an internal document that spells out how your LLC will run. It covers ownership percentages, how profits and losses are split, what happens if a member wants to leave, and how major decisions get made. Not every state legally requires one, but operating without one is risky. If a dispute arises and you don’t have an operating agreement, state default rules take over, and those defaults may not match what you and your co-owners actually intended.
Even single-member LLCs benefit from an operating agreement. It reinforces that the LLC is a legitimate, separate entity, which strengthens your liability protection if it’s ever challenged.
Member-Managed vs. Manager-Managed
When you form an LLC, you choose one of two management structures. In a member-managed LLC, all owners share control over daily operations: signing contracts, managing bank accounts, hiring staff, and making business decisions. This is the default in most states and works well for small businesses where every owner is actively involved.
In a manager-managed LLC, decision-making authority is delegated to one or more designated managers. Those managers might be members, or they could be outside professionals. This structure makes sense when some owners are passive investors who contribute capital but don’t want to run the business, or when the LLC has enough members (roughly five or more) that requiring everyone to weigh in on daily decisions would slow things down.
Member-managed LLCs generally cost less to operate because they don’t need the formal officer or board structure that corporations use. Manager-managed LLCs trade some of that simplicity for centralized, faster decision-making.
Who Should Form an LLC
LLCs are flexible enough to work for freelancers, rental property owners, small retail shops, consulting firms, tech startups, and many other business types. They’re especially popular with small businesses that want liability protection without the formalities of a corporation, like mandatory board meetings, bylaws, and detailed minutes.
An LLC is often a good fit if you have personal assets worth protecting, you want flexibility in how the business is taxed, or you’re going into business with one or more partners and need a clear ownership structure. For a solo freelancer earning modest income, the cost and paperwork of maintaining an LLC may not be worth it compared to simply carrying good business insurance. But as revenue grows or risk increases, the structural protection becomes more valuable.
Ongoing Compliance
Forming the LLC is just the first step. Most states require you to file periodic reports (annual or biennial) that confirm your LLC’s basic information is still current. These reports come with filing fees, and late filings can trigger penalties. Some states will administratively dissolve an LLC that falls behind on its reports, stripping away your liability protection without warning.
Beyond state requirements, you’ll need to maintain your tax elections, file the appropriate federal and state tax returns, and keep your business finances separate from personal accounts. If your LLC has employees, payroll tax obligations apply. If you’re a single-member LLC, the IRS still treats the LLC as a separate entity for employment tax and certain excise tax purposes, even though it’s “disregarded” for income tax.
As of March 2025, domestic LLCs are exempt from the federal Beneficial Ownership Information (BOI) reporting requirement under the Corporate Transparency Act. FinCEN revised its rules so that only entities formed under foreign law and registered to do business in the U.S. must file BOI reports. No fines or penalties are being enforced against U.S. domestic companies or their owners for BOI reporting.