How to File Missouri's Articles of Organization
What goes on Missouri's Articles of Organization, what is filed with it and what it costs, read from Missouri government sources.
The short answer. To form an LLC in Missouri, you file the Articles of Organization with the Missouri Secretary of State, Corporations Division. The state charges $50 to file online and $105 by mail. Of the 15 items this page tracks, the form requires 7, makes 2 optional and leaves out 5, and 1 is not checked yet.
The Missouri Articles of Organization at a Glance
| What Missouri calls it | Articles of Organization (Form LLC-1) |
| State filing fee | $50 online, $105 by mail |
| Processing time | Usually instant (online) |
| Where to file | Missouri Secretary of State, Corporations Division |
| File online | Yes, online, open the filing portal |
| Blank form | Download it from the state |
| Law that sets its contents | RSMo 347.039 |
| Filed with it or right after | 1 filing, listed below |
Read from a Missouri government source, last checked September 23, 2026. The filing fee and processing time come from our Missouri cost record. See the sources.
What Goes on Missouri's Articles of Organization
Each row is one of the 15 items this page tracks, with what Missouri's Articles of Organization asks for. "Not on the form" means we checked and found no place for it on the Articles of Organization. "Not checked" means we have not confirmed it either way.
| Item | On the form |
|---|---|
| LLC name | Required |
| Registered agent's name | Required |
| Registered office address | Required |
| Principal office address | Optional |
| Mailing address | Not on the form |
| Organizer's name | Required |
| Members' names | Not on the form |
| Managers' names | Not on the form |
| Member-managed or manager-managed | Required |
| Business purpose | Required |
| Duration | Required |
| Effective date | Optional |
| County | Not on the form |
| Email address | Not checked |
| Registered agent's consent | Not on the form |
The registered agent rows are covered in more depth in Missouri's registered agent requirements, and the steps before and after this filing are in how to start an LLC in Missouri.
What the LLC's Name Must Include
The LLC's name must include one of these: "Limited Liability Company", "Limited Company", "LLC", "L.L.C.", "LC" or "L.C.".
Rule: RSMo 347.020(1).
File These With It or Right After
Missouri has one more filing that goes with it or follows it.
| Filing | Required? | When |
|---|---|---|
| Attachment for Series of a Limited Liability Company (Form LLC 1A) | Only for an LLC that establishes a series. One attachment is filed for each series. | Filed with the Articles of Organization. |
Draft Your Articles of Organization
The generator below starts with Missouri selected and drafts the document from what you enter. Compare the draft with the state's current form before you file.
MyStateLLC.com is not a law firm, not an attorney, and not a document preparation service. This is a self-service tool: it formats information you enter into a state template, and no one at MyStateLLC reviews, corrects, or files it for you. This tool and the document it generates are informational and are not legal, financial, or tax advice, and are not a substitute for the advice or services of an attorney. MyStateLLC cannot give legal advice, does not prepare or file documents itself, and communications with MyStateLLC are not privileged. Using this tool does not create an attorney-client relationship. LLC laws vary by state and this document is not reviewed by anyone before you file it. Consult a licensed attorney or CPA in your state before you sign or file it.
Where are you forming your LLC?
After It Is Approved
| Certified copy of the filed Articles of Organization | See note below |
| Changing it later (Amendment of Articles of Organization) | $25 |
Where these fees come from: the sources.
Professional LLCs in Missouri
We have not confirmed whether Missouri allows a professional LLC; check with the Missouri Secretary of State, Corporations Division, and the state licensing board.
Worth Knowing in Missouri
A certified copy costs $10 when ordered online. A paper order costs $10 for the certification plus 50 cents per page.
Frequently Asked Questions
Sources
- sos.mo.gov/CMSImages/Business/llc1.pdfMissouri Form LLC-1, Articles of Organization (01/2025)
- sos.mo.gov/business/corporations/formsMissouri SOS Corporations Division forms
- sos.mo.gov/CMSImages/Business/fees.pdfMissouri SOS Corporations Division fee schedule
- sos.mo.gov/business/faqsMissouri SOS Business Services FAQs
- revisor.mo.gov/main/OneSection.aspx?section=347.039RSMo 347.039, Articles, contents
- revisor.mo.gov/main/OneSection.aspx?section=347.037RSMo 347.037, Formation, articles of organization, when effective
- revisor.mo.gov/main/OneSection.aspx?section=347.020RSMo 347.020, Name of company regulated
- revisor.mo.gov/main/OneSection.aspx?section=347.041RSMo 347.041, Articles of amendment
- bsd.sos.mo.govMissouri SOS Online Business Services
The rows and fees on this page were read from the Missouri government sources above, not from a formation service, and anything we could not confirm there is marked Not checked. See our editorial policy for how these are verified and corrected.
This guide is general information, not legal or tax advice, and reading it does not create an attorney-client relationship. It reports what each state's filing office publishes about the document that forms an LLC, with the sources this page cites. It cannot tell you what your own filing needs: fees and forms change between our reviews, several occupations cannot use an ordinary LLC at all and must use a professional entity or a separate professional form, and your city or county may require a registration of its own. Confirm the current fee and form with the filing office named on this page before you send anything.
Edmond Hui · Founder, MyStateLLC
Edmond Hui is a software engineer and serial entrepreneur based in New York who has founded multiple online businesses across e-commerce, media, and information publishing. Before transitioning into tech, he spent years as a commercial real estate professional closing deals totaling over 100,000 square feet, giving him firsthand experience with business formation and entity structuring. He built MyStateLLC to provide the free, state-specific LLC guidance he wished existed when forming his own companies.