Check your business formation filing requirements

What documents do I have to file with the state to form my business?

If you're forming an LLC, a corporation, or most other state-registered entities, you'll need to file a formation document with whatever state agency handles business filings (usually the Secretary of State). What that document is called depends on your entity type and your state. LLCs often file articles of organization or a certificate of formation. Corporations file articles of incorporation, sometimes called a charter.

A formation document typically names the entity, lists a business address, and the registered agent information. Not every structure works this way, though. Sole proprietorships typically do not need a state formation filing, though you could still face other registration requirements. Since the rules shift from state to state and structure to structure, check the state agency's official website to find out exactly what applies to you.

What information do I need to gather before I start a business formation filing?

You'll typically need a business name, a business address, a registered agent, and details about your owners, members, or officers. Exactly what's required depends on your state and your entity type.

• Business name: Most states want a name that's distinguishable from anything already on file, so check availability before you settle on one.
• Business address: States usually ask for a physical address, and some also want a separate mailing address.
• Registered agent: This individual or business receives legal and official mail on the business's behalf. Every state sets its own rules for who qualifies, so make sure your pick meets them.
• Owner, member, or officer details: Names, addresses, or roles may all be required, depending on your state and entity type.

Think of this as a starting point, not a complete checklist. The state agency will tell you exactly what its filing requires.

How do filing requirements differ between an LLC, a corporation, and other business structures?

The state filing for each business structure mostly differs in what the document is called and what internal governance pieces each entity is expected to keep up. LLCs generally file articles of organization or something similar. Corporations file articles of incorporation or a charter.

Internal paperwork looks different too. LLCs typically rely on an operating agreement to spell out ownership and management. Corporations adopt bylaws, and depending on the state, they'll also need to take initial steps like naming directors and officers. Whether any of this gets filed with the state, or is required at all, comes down to your state and entity type.

Other structures don't follow this pattern. General partnerships and sole proprietorships often face lighter or different registration rules, and some rely on local or assumed-name filings instead of a formal state formation document. Limited partnerships and limited liability partnerships have their own filing requirements too, so look into how your state treats them specifically.

None of this is meant to steer you toward one structure over another. If you're weighing how a structure affects your liability or your taxes, talk to an attorney or tax professional who can look at your actual situation.

Do formation filing requirements vary from state to state?

Yes, and quite a bit. Requirements, form names, and filing methods all change depending on where you're filing, and some states tack on extra steps. Arizona, for instance, requires publication after you file. Assuming what worked in one state will work in another trips up a lot of people.

Your best bet is to check the state agency's official website for current requirements. The Formation Filing Requirement Preview can give you a sense of what's coming, but treat it as a starting point, nothing more. Rules change, so confirm the details with the state agency or an attorney before you rely on them.

What are the most common mistakes people make when preparing formation paperwork?

Most mistakes are small, but they can still cost you a correction or a refiling. Here's what to watch for:

• Name conflicts. You picked a name too close to one already on file, or missed a naming rule specific to your entity type. These rules aren't the same everywhere.
• Incomplete or inconsistent information. A blank field here, a mismatched spelling there. Little inconsistencies across documents cause real headaches.
• An ineligible registered agent. The agent you named doesn't actually meet your state's requirements.
• Assuming another state's rules apply. Guidance written for Delaware doesn't necessarily help you in Texas.
• Skipping verification. You didn't check your paperwork against the state's current instructions before hitting submit.

Read your paperwork against the agency's own instructions before you file. That single habit catches most of these problems.

What steps come after I file my formation documents?

Once you've filed, most businesses move on to internal documents and recordkeeping, getting an Employer Identification Number (EIN) if they need one, and figuring out ongoing reporting obligations like tax registration and licensing. On the internal side, that might mean drafting an operating agreement or bylaws, setting up ownership records, or keeping track of meeting decisions where that's expected of you.

An EIN is a federal tax ID issued by the IRS, and whether you need one depends on your structure and what your business actually does. Check the IRS website directly, since it's the final word on that. State and local tax registrations, licenses, and periodic filings like annual reports vary by state, by entity type, and by the kind of work you do. Federal reporting rules for businesses have changed before, so don't take last year's answer as current when you file your report. Check the relevant federal agency's site for where things stand now.

What applies to you depends on your specifics, so run it by an attorney or the relevant state agency before you assume you're covered.