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Starting an LLC in Missouri comes down to filing articles of organization with the Missouri Secretary of State's Business Services Division, lining up a registered agent with a physical Missouri street address, and knocking out a handful of follow-up tasks. This guide walks you through the whole thing, from picking a name to staying compliant once you're up and running.
Key takeaways
- Missouri LLCs are formed by filing articles of organization with the Secretary of State (SOS).
- Your LLC name must be distinguishable from existing Missouri business names and use an allowed LLC designator.
- Your LLC must maintain a Missouri registered agent and registered office, which become part of the public record.
- An operating agreement sets the LLC’s ownership and management rules, but it is kept internally rather than filed with the state.
- Employer identification number (EIN), tax, licensing, insurance, employer, and recordkeeping requirements depend on your LLC’s structure, activities, employees, and location.
Step 1: Name your Missouri LLC
Missouri law says your LLC's name has to stand apart from every other business entity already on file with the Secretary of State, and it needs an LLC designator: "Limited Liability Company," "Limited Company," "LLC," "L.L.C.," "LC," or "L.C." If your name uses a regulated or restricted term, check the applicable Missouri authority before filing.
You’ll also need to check your name’s availability with the SOS. Search their online database or use LegalZoom’s free Missouri business name search tool before filing. If you end up using LegalZoom for your LLC formation, a name check is included with the service.
Free Missouri Business Name Check
Starting a business? Use our free name check tool to check your business name against business records in Missouri.
By clicking "Check Availability," I agree to LegalZoom's Terms of Use. This search is a preliminary check of state databases and does not include variations or trademarks. Results do not guarantee name availability or compliance with legal requirements.
There is always a chance that a name that is available in Missouri is under a federal trademark. It’s helpful to run a trademark search with your preferred name before you file, just in case.
Do you need a Missouri DBA (fictitious name)?
If you are planning to operate under a name different from what's on your articles of organization, Missouri requires a registration of fictitious name, better known as a DBA. File this with the Secretary of State for a $7 fee, separate from your articles of organization cost. The registration expires after five years and does not create exclusive rights to the name.
Step 2: Appoint a Missouri registered agent
Every Missouri LLC needs a registered agent named before the state approves its articles of organization. This is the person or company who accepts lawsuits, tax notices, and other official mail on your LLC's behalf.
Do you need a registered agent to start an LLC in Missouri?
Yes. Under Missouri Revised Statutes Chapter 347, every LLC, domestic or foreign, has to keep a registered agent with a physical Missouri street address on file at all times. Get this lined up before you file. The articles of organization ask for your registered agent, and they won't get approved without one listed.
Can you be your own registered agent in Missouri?
Usually, yes, as long as you're a Missouri resident and have a physical street address in the state. You can also name a friend, family member, business partner, or an authorized corporate entity. But if you live outside Missouri, self-appointment is off the table. You'll need someone with a Missouri physical address who's around during business hours to accept service of process.
What are Missouri's address requirements for a registered agent?
Missouri requires a physical street address, called the registered office, where someone can accept documents in person during business hours. P.O. boxes and commercial mail drops do not satisfy the registered-office requirement. Keep the registered office current with the Secretary of State, and consider a professional service if you do not want to use your home or business address for this public filing.
What registered agent information becomes public?
Your agent's name and address land in the Secretary of State's public database when you file. If you choose to be your own registered agent and you work from home, that puts your home address on public record, which is why many founders choose a professional service. But, it is not the only formation-record information that may identify people: The articles of organization also require each organizer's physical business or residence address.
Step 3: File your Missouri articles of organization with the Secretary of State
This is the moment your LLC officially comes into existence. The filing goes to the Secretary of State's Business Services Division, and once it's approved, your business becomes a legal entity separate from you.
What document do you file to form an LLC in Missouri?
Whoever's organizing the LLC (not necessarily an owner) signs and submits the LLC’s articles of organization. You'll find Missouri's articles of organization form through the Secretary of State's online Business Registration portal.
What information do you need before you file Missouri's articles of organization?
The filing must identify key information before the SOS will accept it. Review every field before you submit, because the Secretary of State may return articles that do not have everything exact.
- LLC name: Needs "Limited Liability Company," "LLC," or "L.L.C." and has to be distinguishable from every existing Missouri entity
- Registered agent name and registered office address: Must be a physical Missouri street address, no P.O. boxes
- Management structure: Either member-managed or manager-managed
- Duration: Perpetual or a fixed term
- Effective date: Can be pushed up to 90 days after submission
- Organizer information: The name and address of whoever's filing
What filing methods does the Missouri Secretary of State accept?
You've got three options: online, mail, or in-person delivery. Online runs through the Business Registration Online Portal. Use that route unless you've got a specific reason not to, like needing to pay by check. Online filing costs $50; mail costs $105. Fax filing exists too, but it requires equipment most home offices don't have lying around.
Where do you mail or submit Missouri LLC paperwork in person?
You can mail your paperwork to:
Missouri Secretary of State's Office, Corporations Division
P.O. Box 778
Jefferson City, MO 65102
To submit in person, you can
600 W. Main St.
Room 322
Jefferson City, MO 65102
Checks and money orders go to "Secretary of State." If you prefer help preparing the filing, LegalZoom's LLC formation service can handle the submission.
Step 4: Create a Missouri LLC operating agreement
Once your articles of organization get approved, the next step is to write an operating agreement. This internal document spells out who owns the LLC, how profits get split, and who's making day-to-day decisions. The state never sees it, but it matters more than most new
Is an operating agreement legally required for a Missouri LLC?
Missouri law says the member or members shall adopt one, but you do not file it with the Secretary of State. Rather, it’s used to document ownership, management, voting, profit and loss allocations, transfers, buyouts, and dissolution rules.
How much detail you need depends on your setup. A single-member LLC can use a shorter agreement that documents sole ownership and management. A multi-member LLC generally needs more detail about voting rights, profit splits, authority, transfers, and what happens if someone leaves. LegalZoom’s operating agreement service can help you create an agreement for your ownership structure.
Step 5: Get an EIN for your Missouri LLC
An employer identification number is a nine-digit federal tax ID that the IRS assigns to your business. This comes straight from the federal government, and you may need one before registering for certain Missouri taxes, opening a business bank account, hiring employees, or electing corporate tax treatment.
You can apply for your EIN directly with the IRS or let LegalZoom file your application on your behalf. If you choose the Pro or Premium LLC formation service, your EIN application is included at no extra charge.
Do you need an EIN if you're a single-member Missouri LLC?
Not always, but some business structures or activities require one. A single-member LLC with no employees and no applicable excise-tax obligation may generally use the owner's taxpayer identification number for federal income-tax purposes. But, an EIN is commonly required or useful for multi-member LLCs, LLCs with employees, certain excise taxes, corporate tax elections, banking, and some state registrations.
Step 6: Register for Missouri state taxes and business licenses
Getting your articles of organization approved doesn't mean you're completely ready to begin operations. Depending on your industry and location, your LLC might still need to register with the Missouri Department of Revenue and pick up one or more local licenses before you can legally sell anything.
What business permits or licenses do you need for a Missouri LLC?
It depends on your industry, employees, products or services, and location. There's no single statewide general business license covering every LLC in Missouri. Sales of taxable goods or services may require a Missouri Department of Revenue registration; employers may need withholding and unemployment accounts, and regulated industries or local governments may require additional permits. Apply for tax registrations and licenses early enough to meet the requirements for your planned start date.
Some businesses need state tax registrations, employer accounts, local business licenses, zoning or occupancy approvals, professional licenses, or industry permits before they begin operating. LegalZoom’s business license service can help identify federal, state, and local requirements based on your activity and location.
Does your Missouri LLC need to register with the Department of Revenue?
Many do. LLCs need a Missouri Retail Sales Tax License if you sell tangible goods or taxable services to Missouri customers. And if you have employees, you'll also register for withholding tax. Register online through MyTax Missouri or mail in Form 2643 (Missouri Tax Registration Application).
Basic tax registration is free, but skipping a required registration can lead to penalties and interest. Missouri and local tax rates depend on the taxable transaction and location, so check the current Department of Revenue rate tables instead of relying on a single statewide number. Wholesale and resale treatment can depend on the transaction and supporting exemption documentation.
Building a business is enough work as it is. We'll help you start your LLC with confidence.
Missouri LLC filing fees and cost considerations
The base fee to start an LLC is your articles of organization filing fee—either $50 or $105, depending on how you file.
Missouri has no annual report requirement for LLCs, which keeps ongoing state filing costs low. Beyond state fees, budget for provider-dependent services and local requirements, including commercial registered-agent renewals, operating-agreement drafting or attorney review, local license and permit fees, insurance, bookkeeping or payroll, and bank-account requirements.
The risks of filing a Missouri LLC on your own
Filing a Missouri LLC yourself can be manageable, but the filing is only the first decision in a longer compliance process. Small errors can delay formation, expose personal information, or leave the company without the registrations and records it needs to operate.
- Using a name that Missouri will not accept: Missouri requires an LLC name to be distinguishable from existing entities and to use an allowed LLC designator. A close variation can be rejected, forcing you to revise the articles of organization and possibly your branding after filing.
- Listing the wrong registered agent or registered office: Missouri requires a registered agent with a physical Missouri street address, and the agent and office must remain current. Using an unavailable person, a P.O. box, or an address where documents cannot be accepted can lead to a rejected filing, missed service of process, or administrative dissolution.
- Submitting incomplete or inconsistent articles of organization: Missouri’s filing asks for specific information about the LLC’s name, purpose, registered agent and office, management, duration, organizers, and effective date. Omitting a field or entering conflicting information can cause the Secretary of State to return the filing or create an inaccurate public record.
- Skipping the operating agreement Missouri members must adopt: Missouri law says the member or members shall adopt an operating agreement, even though it is not filed with the Secretary of State. Without written rules for management, voting, allocations, transfers, and buyouts, an owner dispute can become harder and more expensive to resolve.
- Using a fictitious name without registering or renewing it: If the LLC operates under a name different from its articles of organization, Missouri requires a Registration of Fictitious Name. The registration expires after five years and does not create exclusive rights, so missing the filing or renewal can create avoidable business and branding problems.
Start your Missouri LLC with LegalZoom
Filing your own Missouri articles of organization is doable. If you'd rather spend your time building your business than managing formation paperwork, LegalZoom can help prepare and file your Missouri LLC documents. It’s easy:
- Answer a few questions about your business
- We prepare and file your Missouri articles of organization
- Receive your completed formation documents and next-step guidance
After formation, LegalZoom can also help with registered agent services, operating agreements, EIN applications, business license research, and ongoing compliance support.
Find the right state to form an LLC
Find the right state to form an LLC
Every state has different rules, costs, and considerations for LLC formation.
Missouri LLC FAQs
What are the ongoing requirements for a Missouri LLC?
Your registered agent and managing member share responsibility for staying compliant year-round, not just at filing. Registered agent upkeep never stops, while tax registrations and local licenses need renewing periodically.
When do you need to register as a foreign LLC in Missouri?
Register as a foreign LLC if your business was formed under another state's law and you're transacting business in Missouri, whether that's opening a physical location, hiring Missouri-based employees, or regularly serving Missouri customers from a Missouri presence.
Owning property or completing a one-off transaction usually doesn't trigger this on its own. Missouri doesn't spell out "transacting business" with one clear test, so borderline cases deserve a closer look. It also typically requires an application for registration of a foreign limited liability company and a recent certificate of good standing from the home state.
Can I form a Missouri LLC if I live in another state?
Yes. Your home state does not by itself prevent you from forming a Missouri LLC, but the company still needs a Missouri registered agent and registered office. If the company was formed under another state’s law but will transact business in Missouri, it may need foreign LLC registration instead of a new domestic LLC.
How do I change a Missouri LLC’s registered agent?
File the Missouri Secretary of State’s statement of change for the registered agent, registered office, or both. The current general fee schedule lists a $10 filing fee for most entities. Keep the registered-agent information current so the company can continue receiving official notices.
Does Missouri allow a series LLC?
Missouri law provides for designated series LLCs, and the articles of organization form identifies the series option as optional. A series structure can create additional formation, operating agreement, recordkeeping, and liability separation considerations, so it should not be treated as a routine shortcut for every new business.
What is the difference between a Missouri LLC name, a fictitious name, and a trademark?
The LLC name is the legal name in the articles of organization. A Missouri fictitious-name registration lets a person or entity conduct business under another name, but it does not create exclusive rights to that name. A trademark is a separate brand-protection question that should be researched through the United States Patent and Trademark Office before launch.
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