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Missouri . Articles of Amendment

Amend your Missouri entity's formation documents.

Missouri requires Articles of Amendment whenever you change foundational details on your formation documents. This guide explains what triggers an amendment, what doesn't, the Missouri Secretary of State fee, and how to file.

File Missouri amendment →

When you need an amendment in Missouri

Amendment required
  • Entity name change
  • Authorized shares change (Corps)
  • Business purpose change
  • Member or manager structure change (Member-Managed → Manager-Managed)
  • Duration changes
Amendment NOT required
  • Address change (use Statement of Change of RA or annual report)
  • Adding or removing members (Operating Agreement only)
  • Internal management changes
  • Officer turnover (Corps - reflect in next annual report)
Entity changes

Missouri Articles of Amendment: at a glance.

Files a formal change to your articles of organization or incorporation, such as a name or structural change.

Filing details

How Missouri handles Articles of Amendment.

Missouri Business SearchLook up any Missouri entity and read every status right.
Where to fileSecretary of State office, online portal, or by mail with the required fee.
TurnaroundStandard processing: 5-10 business days. Expedited service available for an additional state fee.
Required informationEntity name + ID, current officers and registered agent, principal office address.
Common pitfallsMismatched officer addresses, expired registered agent, missed prior reports causing administrative dissolution.
Frequently asked

Missouri Articles of Amendment questions.

What are Articles of Amendment at the Missouri Secretary of State?

They are the filing you submit to the Missouri SOS to officially change something in your original formation document, the entity name, address, business purpose, share structure, or management. The change is not legal until Missouri accepts the amendment. We prepare and file the correct Missouri amendment for whatever you are changing on the record.

When do I need to file an amendment in Missouri?

When you change information that appears on your public Missouri record: a new company name, a change in authorized shares, a shift in management structure, or an updated business purpose. Internal changes usually go in the Operating Agreement instead. We determine whether your change actually requires a Missouri amendment.

How do I change my company name with Missouri?

You file Articles of Amendment with the Missouri Secretary of State stating the new name, which must be available and meet Missouri naming rules, and the change takes effect when accepted, after which you update the IRS, banks, and licenses. We check name availability and file the Missouri amendment so the change goes through cleanly.

Is an amendment the same as an annual report?

No: an annual report is a routine periodic filing to keep information current; an amendment is a one-time change to your formation document. Filing the wrong one delays your change. We file the correct Missouri document so your update actually takes effect rather than bouncing back.

What can I not change with an amendment?

Some changes need a different filing: converting entity type uses a conversion or merger, dissolving uses a dissolution, and internal-only terms go in the Operating Agreement, not a Missouri amendment. We map your specific change to the right Missouri filing so it is not rejected as the wrong document.

How much does a Missouri amendment cost?

Missouri sets an amendment filing fee that varies by state and entity, with expedited options costing more. Because it changes, we show the current Missouri figure and pass it through at cost. Our service pricing is on the pricing page rather than quoted where a number could go stale.

Do I need to update other agencies after a Missouri amendment?

Yes: after Missouri accepts a name or structure change, you generally update the IRS, your bank, licenses, and any states where you are foreign-qualified, or records fall out of sync. We flag the downstream Missouri and federal updates so the change is reflected everywhere, not just at the SOS.

Related

Related services

Missouri Secretary of StateOverview, contact, full filing index. Annual reportDue dates, fees, and how to file. Registered agentRequirements and renewal. Compliance calendarEvery deadline that touches your entity.

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