Registered Agent in Missouri
Every Missouri LLC must have a registered agent with a physical Missouri address. Here is exactly what the law requires, what it costs, and whether you should serve as your own.
State terminology: Missouri uses the standard term "Registered Agent" to refer to the designated individual or business entity authorized to receive legal documents and official state correspondence on behalf of your LLC.
What is a registered agent in Missouri?
Every LLC formed or registered to do business in Missouri is required by state law to maintain a registered agent at all times. Your registered agent is the person or company officially designated to receive service of process — meaning lawsuits, subpoenas, and other legal notices — as well as official correspondence from the Missouri Secretary of State. Without a registered agent, your LLC cannot legally operate in Missouri, and failing to maintain one can result in your business losing its good standing or being administratively dissolved. The agent must be physically present and available at a Missouri street address during normal business hours on every business day, ensuring the state and opposing parties always have a reliable way to reach your company when it matters most.
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Can you be your own registered agent in Missouri?
Yes, an LLC owner or member can serve as their own registered agent in Missouri, provided they meet the state's requirements. You must have a physical Missouri street address — not a PO Box — and be personally available at that location during all normal business hours, Monday through Friday. Keep in mind that your registered agent address becomes part of the public record on the Missouri Secretary of State's website. If you work from home, this means your home address is publicly searchable. It becomes a poor choice if you travel frequently, work irregular hours, or value your personal privacy.
Missouri registered agent requirements
- Must maintain a physical street address in Missouri — a PO Box alone does not satisfy the requirement.
- Must be available at the registered address during normal business hours on every business day to receive legal documents in person.
- Any individual who is a Missouri resident and at least 18 years of age may serve as registered agent.
- A business entity (such as a commercial registered agent service) may serve as registered agent if it is authorized to do business in Missouri.
- The registered agent does not need to file a separate registration with the state, but must be listed and kept current in the LLC's formation or amendment filings.
- The registered agent's name and address are part of the public record, visible to anyone searching the Missouri Secretary of State's business database.
Registered agent cost in Missouri
Serving as your own registered agent costs nothing in state fees, but your personal or business address becomes permanently searchable in the public Missouri Secretary of State database. Commercial registered agent services typically charge between $49 and $300 per year. That fee generally includes a Missouri street address for your filings, secure digital forwarding of all received mail and legal documents, compliance deadline reminders, and privacy protection by keeping your personal address off public records. For most small business owners, a mid-range service in the $100–$150 per year range offers the best balance of reliability and cost. Missouri has no annual report fee, so a registered agent service is often the only recurring compliance cost.
Why most Missouri LLC owners use a service
Using a commercial registered agent in Missouri protects your privacy by replacing your home or office address with the service's address on all public state filings. It also guarantees reliability — a professional service is always staffed during business hours, so you will never miss a lawsuit summons because you were traveling, in a meeting, or simply away from your desk. Services provide instant electronic notification the moment documents arrive, reducing the risk of missing critical legal deadlines. For business owners who move locations or operate across multiple states, a registered agent service also eliminates the need to update your address with the state every time you relocate.
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How to change your registered agent in Missouri
To change your registered agent in Missouri, you file a Statement of Change of Registered Agent and/or Registered Office with the Missouri Secretary of State. The filing can be submitted online through the Missouri Secretary of State's business portal at sos.mo.gov or by mail. The current filing fee is $10. The change takes effect upon acceptance by the Secretary of State, typically within a few business days for online filings. Always notify your new registered agent before completing the change so they are prepared to accept documents on your behalf.
Missouri registered agent: frequently asked questions
What is a registered agent in Missouri?
A registered agent in Missouri is a person or business entity designated to receive service of process — lawsuits, subpoenas, and other legal notices — as well as official correspondence from the Missouri Secretary of State on behalf of your LLC. Every LLC operating in Missouri must designate and continuously maintain a registered agent. The agent must have a physical street address in Missouri and be available during normal business hours. Failing to maintain a registered agent can cause your LLC to lose good standing with the state.
Do I need a registered agent in Missouri?
Yes, Missouri law requires every LLC — whether domestic or foreign (out-of-state) — to maintain a registered agent with a physical Missouri address at all times. This is not optional; it is a condition of legally operating your business in the state. If your registered agent resigns or becomes unavailable and you do not replace them promptly, the Missouri Secretary of State can administratively dissolve your LLC. You must also keep the registered agent information current in the state's records.
How much does a registered agent cost in Missouri?
If you serve as your own registered agent, there is no direct fee to the state — Missouri does not charge a separate registered agent registration fee, and there is no annual report fee for LLCs. If you hire a commercial registered agent service, expect to pay between $49 and $300 per year depending on the provider and included features. Most reputable services fall in the $100–$150 per year range and include mail scanning, digital document delivery, and compliance alerts. Given Missouri's lack of annual report fees, the registered agent service is often the primary recurring compliance expense for an LLC.
Can I be my own registered agent in Missouri?
Yes, you can serve as your own registered agent in Missouri as long as you are at least 18 years old, are a Missouri resident, and have a physical street address in Missouri where you can reliably be reached during business hours. However, your address will be publicly listed in the Missouri Secretary of State's online database, which is a concern for home-based business owners who value privacy. You must also be present at that address during every business day, making this impractical if you travel frequently or keep irregular hours. Many owners start as their own agent and later switch to a commercial service as their business grows.
What does a registered agent do in Missouri?
A registered agent in Missouri performs two primary functions: receiving service of process (legal documents such as lawsuit summonses and subpoenas) and receiving official government notices from the Missouri Secretary of State. When someone sues your LLC, the legal papers are delivered to your registered agent, who then forwards them to you so you can respond within the required timeframe. The agent also receives state notices about compliance issues, tax matters, and administrative actions. A commercial registered agent typically digitizes and emails these documents to you immediately upon receipt, ensuring you never miss a time-sensitive legal deadline.
How do I change my registered agent in Missouri?
To change your registered agent in Missouri, file a Statement of Change of Registered Agent and/or Registered Office with the Missouri Secretary of State through the online business portal at sos.mo.gov or by mailing a paper form. The filing fee is $10. Before initiating the change, make sure your new registered agent has agreed to accept the role. The change becomes effective once the Secretary of State processes and accepts the filing, which typically takes a few business days for online submissions. You should inform your old registered agent of the change as well to avoid any lapse in coverage.