How to Form an LLC: Complete Guide (All 50 States)

What Is an LLC, and Why Form One?

A limited liability company, or LLC, is a business structure that legally separates you from your business. It gives owners (called members) liability protection similar to a corporation, but with a simpler setup, less paperwork, and more flexibility in how the business is taxed and managed. For a deeper look at how an LLC compares to other structures, see what is an LLC.

An LLC's basic structure includes its members (the owners), a registered agent, an operating agreement that governs how the business runs, and the Articles of Organization filed with the state to make it official. Every state has its own name, form, and fee for that filing, but the underlying components are the same everywhere.

Most owners form an LLC to protect personal assets like a home or savings account from business debts and lawsuits, to look more credible to customers and lenders, and to get more flexibility over how profits are taxed than a sole proprietorship allows.

Compared to a corporation, an LLC also cuts down on formalities. There's typically no requirement to hold annual shareholder meetings, keep detailed corporate minutes, or maintain a board of directors. That makes an LLC a popular choice for freelancers, small teams, real estate investors, and anyone who wants liability protection without taking on a corporation's ongoing paperwork.

How to Form an LLC: Step by Step

The exact forms, fees, and processing times vary by state, so always confirm details with your state's filing office. That said, forming an LLC generally follows the same sequence everywhere:

Want your filing handled the same day instead of piecing it together yourself? See same-day LLC formation.

How Much Does It Cost to Form an LLC?

LLC costs generally fall into three categories, and it's worth understanding all three before you file, since the state fee is rarely the only cost:

Formation services vary widely in what they actually include for that headline price. CompanySage bundles an operating agreement, registered agent service, and a bank account resolution into every formation package, with no hidden fees and no separate rush charge for the 24-hour filing. See pricing for full package details.

Choosing the Best State to Form Your LLC

For most small businesses, the right state is the one where you actually live and do business. Forming somewhere else usually means registering as a foreign LLC and paying for a second registered agent in your home state anyway, which erases most of the appeal of "cheaper" or "friendlier" states for a business that isn't physically located there.

That said, a handful of factors sometimes make a different state worth considering, particularly for holding companies, online businesses, or owners without a fixed physical location:

• Taxes. An LLC is a pass-through entity by default, so profits are typically taxed based on the owner's state of residency, not the state where the LLC was formed. Where you form the LLC generally doesn't change your personal tax rate.
• Asset protection. Some states have stronger statutory protections for LLC owners, including charging-order protection that limits what a personal creditor can reach in the business.
• Filing and maintenance fees. States differ widely in both their upfront filing fee and whether they require an ongoing annual report fee at all.
• Ownership privacy. Some states don't publish members' names and addresses in the public formation record, which matters to owners who'd rather keep that information out of a searchable government database.

If you have employees or a physical storefront in a particular state, you generally need an entity registered in that state regardless of these factors. Because the details, exact fees, and statutes behind each of these considerations are genuinely state-specific, the fastest way to get an accurate answer for your situation is to read the formation guide for the state you're weighing.

Form an LLC in Your State

Every state has its own filing office, forms, fees, and timelines. Below are state-specific LLC formation guides from CompanySage, covering some of the most commonly asked-about states:

• Form an LLC in Wyoming
• Form an LLC in New Mexico
• Form an LLC in Florida
• Form an LLC in California
• Form an LLC in Texas
• Form an LLC in New York
• Form an LLC in Delaware
• Form an LLC in Colorado
• Form an LLC in Illinois
• Form an LLC in Georgia
• Form an LLC in Nevada
• Form an LLC in Washington

Don't see your state listed? The steps above apply everywhere; just confirm the exact fee and form name with your state's filing office.

Which LLC Structure Fits Your Business?

"LLC" covers a few different structures, and picking the right one affects your paperwork, taxes, and liability protection:

• Single-member LLC. One owner, taxed by default as a sole proprietorship (profits pass through to your personal return) while still giving you liability protection. See single-member LLC for the details.
• Multi-member LLC. Two or more owners, taxed by default as a partnership. This is where an operating agreement matters most, since it spells out how ownership, decisions, and profits are divided.
• Professional LLC (PLLC). A version of the LLC required in some states for licensed professionals, such as doctors, lawyers, or accountants.
• Series LLC. Available in a limited number of states, this structure lets a single parent LLC create separate "series" beneath it, each with its own liability shield, often used to separate multiple properties or business lines.

You can also elect how your LLC is taxed after it's formed: by default as a pass-through entity, or by filing an election with the IRS to be taxed as an S-corporation or C-corporation once your income makes that worthwhile.

Staying Compliant After You Form Your LLC

Filing your Articles of Organization creates your LLC, but keeping it in good standing is an ongoing responsibility. The main recurring requirements are:

• Annual or biennial reports. Most states require a periodic report and fee that confirms your LLC's current address, registered agent, and members or managers.
• Registered agent maintenance. If your registered agent moves or resigns, you generally need to file an update with the state promptly to avoid falling out of good standing.
• Separate finances. Keeping business and personal accounts separate protects the liability shield an LLC is supposed to provide.
• Federal beneficial ownership reporting. Requirements here have changed since this rule first took effect in 2024, so confirm your LLC's current obligation directly with FinCEN before assuming last year's rule still applies.

Common Mistakes to Avoid When Forming an LLC

A rejected filing or a missed deadline can slow down everything else you're trying to do, from opening a bank account to signing a lease. A few mistakes account for most of the delays:

• Choosing a name that's already taken. Search your state's business name database before you fall in love with a name, and check domain and social handle availability at the same time so your brand and your legal name can match.
• Skipping the operating agreement. Even as a single-member LLC, operating without one leaves your ownership and management structure undocumented, which can matter if you're ever audited, sued, or looking for a co-founder or investor.
• Using a P.O. box as your registered agent address. States generally require a physical street address for a registered agent, not a P.O. box, so this is one of the more common reasons a filing gets kicked back.
• Mixing personal and business finances. Paying business expenses out of a personal account, or vice versa, undermines the separation an LLC is supposed to create between you and the business, which can weaken your liability protection if it's ever challenged.
• Forgetting the annual report. Missing a state's annual or biennial report deadline can put your LLC out of good standing, and in some states can lead to administrative dissolution if it goes unresolved.

Most of these are easy to avoid with a checklist, or by using a formation service that builds the operating agreement and registered agent setup into the process instead of leaving it to you to remember later.