Missouri Registered Agents: How, Why, and When to Get One

Most businesses in Missouri must have a registered agent. You can use a Missouri registered agent service or serve as your own—but there are pros and cons to each.

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Updated on: February 16, 2026
Read time: 7 min

Maybe you’re getting ready to start a new business in Missouri for the first time. Or maybe you’re operating a successful business in another state and looking to expand operations into the Show-Me State for the first time. Either way, there’s an important decision you’ll need to make before you can file your formation paperwork: Who will serve as your registered agent?

Registered agents serve an important role for any business, as they accept legal service of process, lawsuits, tax documents, and other critical correspondence on the company’s behalf. Then they relay these important documents to the business quickly to guarantee any issues can be handled as soon as possible. This guide will cover everything you need to know about appointing a registered agent in MO so you can move forward with confidence.

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What is a Missouri registered agent?

A Missouri registered agent is an individual or company that you appoint to accept service of process on behalf of your business. They serve as the official point of contact for your business, receiving and forwarding important documents such as service of process, annual report reminders, tax notices, compliance notifications, official state correspondence, and legal notices from creditors or other parties.

Under Missouri Revised Statutes Chapter 351.370, a registered agent must meet these requirements:

  • Be an individual (aged 18 or older) or business entity authorized to transact business in the state
  • Maintain a physical street address (not a P.O. box) in Missouri where they can be served with legal documents.
  • Be available during normal business hours (typically 9 a.m. to 5 p.m., Monday through Friday).

Can I be my own registered agent in Missouri?

Yes, you can serve as your own registered agent in Missouri if you meet the residency and availability requirements. However, this decision comes with important considerations.

Advantages of serving as your own registered agent include:

  • No additional service fees
  • Direct control over document receipt
  • Immediate awareness of legal notices

There are also some disadvantages of serving as your own registered agent:

  • Your personal address or business address becomes part of the public record.
  • Your address is accessible to anyone searching Missouri business records.
  • If you travel frequently or work irregular hours, you may miss important legal documents.
  • If you receive a lawsuit in your primary business office or at home, it could result in potential embarrassment in front of clients, employees, or family.

Small business owners in particular may find it difficult to serve as their own registered agent since the limitations on their time and location can make it hard to perform their other responsibilities effectively.

Why consider a professional Missouri registered agent service

A registered agent service like LegalZoom can often make running your business much easier. Here are some examples of when they’re especially helpful:

  • You live outside of Missouri.
  • You work from home and prefer privacy.
  • You travel frequently for business.
  • You prefer having experts handle compliance matters.

Additionally, many professional registered agent companies offer additional services beyond the receipt of service of process that can be valuable to your business. For example, when you choose LegalZoom as your registered agent, you’ll get unlimited document scanning, storage, and digital access to make organization a breeze. We also maintain a detailed compliance calendar to remind you about important deadlines related to your annual reports and other compliance tasks.

LegalZoom has registered agent offices in both St. Louis and Cape Girardeau.

How much does a Missouri registered agent service cost?

In Missouri, professional registered agent services usually cost between $100 and $300 per year. The price depends on factors like level of service, additional features, company reputation and reliability, and whether you need coverage only in the state of Missouri or nationwide.

LegalZoom’s registered agent service costs $249/year and includes perks like:

  • Compliance reminders. Reminders about filing your Missouri annual report as well as tax filing requirements and deadlines
  • Document scanning. Digital access to important documents from anywhere
  • Mail forwarding. Prompt forwarding of all legal notifications and official correspondence
  • Time-sensitive alerts. Immediate notification when legal notices or official mail arrive
  • Cloud storage. Secure storage and management of business correspondence backed up in the cloud
  • Junk mail filtering. Elimination of unnecessary mail and document shredding services

Plus, if you’re switching from a different registered agent to LegalZoom, we cover the registered agent change fee and handle the paperwork for you.

If you’re appointing a registered agent at the same time as you file your formation documents with the Missouri Secretary of State, you do not need to pay any additional fees on top of your registration fee. It costs $10 for most businesses to file a Change of Registered Agent/Office Address form, and $37 for LLPs.

How to appoint a Missouri registered agent

In Missouri, you will need to list your registered agent’s information on your formation paperwork. To form a corporation, this will be your articles of incorporation, and to start an LLC in Missouri, you’ll file articles of organization. Both are filed with the Missouri Secretary of State, either online or by mail.

To file your articles online:

  1. Access the Missouri Secretary of State website at sos.mo.gov.
  2. Navigate to the Business Services section and select your entity type.
  3. Complete the online formation documents including registered agent information.
  4. Pay applicable filing fees using the online payment system.
  5. Receive confirmation right away, including your filing number.

 For businesses preferring to file by mail, Missouri provides specific forms for each entity type:

To file by mail, you’ll need to print the form, fill it out, include a check or money order for the filing fee, and mail it to:

Missouri Secretary of State

Business Services

P.O. Box 778

Jefferson City, MO 65102


In Missouri, registered agents must also provide written consent to serve, which they may do by filling out form 5299.

How to change your Missouri registered agent

You may need to change your Missouri registered agent if your current agent resigns, becomes unavailable, changes their address, or fails to meet their duties. Some business owners also choose to switch voluntarily for reasons like better service or lower costs.

If you need to change your registered agent, you can do so by filing a Statement of Change of Registered Agent with the Missouri Secretary of State. Filing online is easy with the following steps:

  1. Access the Missouri Secretary of State website and log in to your business account.
  2. Select "Change Registered Agent" from the business services menu.
  3. Complete Form Corp. 59 (for corporations and LLCs), Form LP-9 (for LPs), or Form LLP-9 (for LLPs).
  4. Provide the new registered agent information, including full name and Missouri address, written consent, and the effective date of the change.
  5. Pay the required filing fee.
  6. Submit the form and receive confirmation.

You can also change your Missouri registered agent by mail:

  1. Download the appropriate form from the Missouri Secretary of State website.
  2. Complete all required fields including old and new registered agent information.
  3. Obtain written consent from the new registered agent.
  4. Include the filing fee as a check or money order.
  5. Mail to Missouri Secretary of State, Business Services Division.
  6. Allow 5-10 business days for processing.
An infographic describing the meaning of “registered agent.”

What happens if I don't have a registered agent in Missouri?

If you fail to maintain a registered agent, the Missouri Secretary of State will notify you of the deficiency. Continued noncompliance can result in administrative dissolution for corporations, revocation of authority for foreign entities, or cancellation of registration for LLCs and partnerships.

You also risk significant liability if you do not receive or respond to important legal notices—like lawsuits—in a timely manner.

FAQs about MO registered agents

Do out-of-state businesses need a Missouri registered agent?

Yes, under Missouri law, all entities conducting business in the state must have a registered agent in Missouri, even if the business is already established with a registered agent in another state. If you choose to employ a registered agent service, and you know you may want to expand your business into another state, it can be a good idea to check to make sure they maintain offices in those other states.

What happens if my Missouri registered agent resigns?

You’ll need to appoint a new registered agent and promptly file your change of registered agent form with the state.

You should never allow a gap in your registered agent service, as this can lead to compliance issues. Here’s how to make the change as smooth as possible:

  • Submit registered agent changes as soon as you know a change is needed.
  • Ensure the new registered agent is ready to serve before the previous agent stops service.
  • Notify both old and new registered agents of the change timeline.
  • Update internal records and notify relevant parties of the address change.
  • Confirm the change has been processed with the Missouri Secretary of State.
  • Update any contracts or agreements that reference the previous registered agent.

Can the business owner be a registered agent in Missouri?

Yes, a business owner can serve as their own registered agent if they meet Missouri's residency and availability requirements. However, many owners choose professional services for privacy and convenience reasons.

What's the difference between a registered agent and a registered office in Missouri?

The registered agent is the person or company appointed to receive legal documents, while the registered office is the physical Missouri address where the registered agent can be found during business hours.

Carolyn Albee contributed to this article.

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This article is for informational purposes. This content is not legal advice, it is the expression of the author and has not been evaluated by LegalZoom for accuracy or changes in the law.

178 days ago
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Extremely helpful

Extremely helpful, made things simple and understandable and went the extra miles to help me understand my registered agent situation and how it works.

Immanual Robbins
233 days ago
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Aditya was incredibly helpful and…

Aditya was incredibly helpful and professional throughout our conversation. He guided me through the payment process for the Registered Agent Service and explained everything clearly and thoroughly. He made sure all my concerns were addressed and was very patient the entire time. He also had a very nice and calming voice, which made the whole experience even better. Honestly, with the way he handled the call—with confidence, clarity, and excellent customer service—I believe Aditya has what it takes to be a manager. He’d be a great asset in a leadership role. Thank you again, Aditya!

Myrjean Aquino
290 days ago
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Legal Zoom always saves the day

Legal Zoom always saves the day. As me registered agent for 14 years they have been a lifesaver.

Genevieve Pavitt
328 days ago
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Keen was very supportive and helpful to…

Keen was very supportive and helpful to help me sign in for a registered agent

Marta Salerno
335 days ago
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Legal Zoom made it very simple and easy…

Legal Zoom made it very simple and easy to set up my LLC and having them as my registered agent it keeps my company on time for Legal document filings and they notify me if something is coming up that needs my attention to keep on track.

Townline Bus LLC
393 days ago
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Rene was super helpful in making legal Zoom, my company's registered agent

Rene was super helpful in getting Legalzoom setup as registered agent for all my companies, and help me get everything organized so that I know when to file my statements of information. Excellent customer service!

Scott Clift
394 days ago
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My registered agent Oliver was the best!…

My registered agent Oliver was extremely knowledgeable and very helpful.

Robert Mckay
417 days ago
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Highly Satisfied with service!

Yes, I am highly satisfied with the customer service provided by Alex. And I am highly satisfied by Legal Zooms services filling my Annual Report + Registered Agent with compliance essentials. I've been a client of Legal Zoom for many years.

Wilma Connell
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