Key Takeaways
- Missouri does NOT offer a PLLC as a distinct entity type — Missouri has no PLLC statute at all. Its professional-entity framework is the Missouri Professional Corporation Law, Chapter 356 RSMo, which uses the "P.C." designator. Notably, Missouri doesn't force professionals into that PC structure — under RSMo §484.020.1, attorneys specifically may organize as a Chapter 356 Professional Corporation, an ordinary LLC (Chapter 347), or an LLP (Chapter 358), with no mandated professional-specific entity. This flexibility is directly confirmed for attorneys and likely extends to other licensed professions through analogous board rules, though that hasn't been independently confirmed profession-by-profession.
- Missouri does not require licensing board pre-approval as a condition of filing
- Not permitted under the Chapter 356 Professional Corporation route, which restricts shareholders to the same professional service. For the LLC or LLP route, combining professions isn't confirmed as broadly allowed either — it would be governed by whatever profession-specific ethics rules apply to each licensed member, so treat multidisciplinary combination as unconfirmed rather than assumed available.
- Same-day PLLC formation available through LLC Attorney, at no markup on state fees
If you're a licensed professional in Missouri looking to form a "PLLC," you won't find one — Missouri has no distinct Professional LLC statute. Instead, licensed professionals typically use a Professional Corporation under Chapter 356, though for at least attorneys, Missouri law confirms a genuine choice among a PC, an ordinary LLC, or an LLP.
This guide covers exactly how that choice works in 2026 — the fees for each route, why Missouri doesn't gate filings behind licensing-board pre-approval, and what liability protection actually looks like no matter which entity you pick.
What Is a Missouri PLLC?
A Professional Limited Liability Company (PLLC) is a special LLC designation for licensed professionals — doctors, lawyers, accountants, and similar occupations. It works like a regular LLC, but ownership is restricted to people who hold the same professional license, and formation often requires sign-off from your licensing board before the state will accept your filing.
No. Missouri has no PLLC statute at all. Its professional-entity framework is the Missouri Professional Corporation Law, Chapter 356 RSMo, which uses the "P.C." designator. Notably, Missouri doesn't force professionals into that PC structure — under RSMo §484.020.1, attorneys specifically may organize as a Chapter 356 Professional Corporation, an ordinary LLC (Chapter 347), or an LLP (Chapter 358), with no mandated professional-specific entity. This flexibility is directly confirmed for attorneys and likely extends to other licensed professions through analogous board rules, though that hasn't been independently confirmed profession-by-profession.
Who Needs a PLLC in Missouri?
Since no PLLC exists, no profession is required to use one. Professions eligible for the Chapter 356 Professional Corporation alternative include accountants, architects, engineers, attorneys, dentists, physicians, veterinarians, real estate salespeople and brokers, and registered nurses. Attorneys are specifically confirmed to have a further choice between the PC, an ordinary LLC, or an LLP.
For attorneys, RSMo §484.020.1 confirms a genuine three-way choice among the Chapter 356 Professional Corporation, an ordinary Chapter 347 LLC, and a Chapter 358 LLP — no single entity is mandated. Confirm with your own licensing board whether the same flexibility applies to your specific profession before assuming it does.
Who Can Own a Missouri PLLC?
In a Chapter 356 Professional Corporation, all shareholders must be licensed in the same type of professional service, subject to narrow "qualified person" carve-outs. In an ordinary LLC or LLP used by professionals, Missouri's general LLC/LLP statutes don't impose a license-based ownership restriction themselves — but the individual actually performing the licensed service must personally hold that license, and profession-specific ethics rules may layer on additional ownership conditions.
Not permitted under the Chapter 356 Professional Corporation route, which restricts shareholders to the same professional service. For the LLC or LLP route, combining professions isn't confirmed as broadly allowed either — it would be governed by whatever profession-specific ethics rules apply to each licensed member, so treat multidisciplinary combination as unconfirmed rather than assumed available.
What Liability Protection Does a PLLC Actually Provide?
A PLLC protects you from business debts and from a co-owner's malpractice — but it never shields you from your own malpractice. If you personally provide negligent professional services, you remain personally liable for that regardless of the entity structure.
Whether structured as a Chapter 356 Professional Corporation, an ordinary LLC, or an LLP, a Missouri licensed professional remains personally liable for their own malpractice regardless of which entity they choose — the entity shield only ever covers each other's malpractice and the business's general debts.
No statutory malpractice-insurance mandate was found tied to Chapter 356 PC formation, nor to the ordinary LLC or LLP alternatives. Individual licensing boards may still require coverage as a condition of maintaining a professional license — confirm directly with your board.
How Is a Missouri PLLC Taxed?
By default, a PLLC is taxed exactly like a regular LLC — pass-through to the owners' personal returns, with the option to elect S-corp or C-corp taxation if that fits your situation better. The professional designation changes ownership eligibility and licensing oversight, not the default federal tax treatment.
Missouri has a graduated personal income tax with a 2026 top rate of 4.7%, which is scheduled to keep declining under a statutory trigger tied to state revenue growth — so pass-through income from whichever entity you choose is taxed at a comparatively moderate and gradually falling rate.
Missouri is unusual in that it doesn't require LLCs (including those used by professionals) to file a periodic annual report or pay an ongoing state franchise-style fee — a notable, comparatively low-maintenance feature relative to most peer states. Professional Corporations may have their own Chapter 356-specific compliance obligations tied to licensing-authority certificates under §356.041.
Missouri is one of the states in this batch with no PLLC entity type at all — and unlike some no-PLLC states, it gives professionals (confirmed for attorneys) a genuine three-way choice among a Professional Corporation, an ordinary LLC, or an LLP, rather than funneling everyone into a single PC structure.
How to Set Up Your Missouri PLLC Step by Step
If You Do It Yourself
Step 1 — Confirm you need a PLLC (not a plain LLC) for your profession.
Since no PLLC exists, no profession is required to use one. Professions eligible for the Chapter 356 Professional Corporation alternative include accountants, architects, engineers, attorneys, dentists, physicians, veterinarians, real estate salespeople and brokers, and registered nurses. Attorneys are specifically confirmed to have a further choice between the PC, an ordinary LLC, or an LLP.
Step 2 — Get licensing board sign-off if required.
Neither the standard LLC Articles of Organization nor the Chapter 356 PC Articles of Incorporation require a statewide pre-filing licensing-board certification before the Secretary of State accepts them. Chapter 356 does require the PC to obtain licensing-authority-issued certificates and comply with fee rules under §356.041, but that's a PC-specific mechanic tied to maintaining the corporation, not a precondition the Secretary of State checks before filing. Because Missouri doesn't gate either the LLC or PC filing behind advance board approval, the Secretary of State filing itself can move quickly regardless of which entity you choose — the board-level compliance obligations (holding an active license, any PC-specific certificate requirements under §356.041) apply on an ongoing basis after formation, not as a condition of the filing.
Step 3 — File your formation documents.
Missouri has no PLLC statute at all. Its professional-entity framework is the Missouri Professional Corporation Law, Chapter 356 RSMo, which uses the "P.C." designator. Notably, Missouri doesn't force professionals into that PC structure — under RSMo §484.020.1, attorneys specifically may organize as a Chapter 356 Professional Corporation, an ordinary LLC (Chapter 347), or an LLP (Chapter 358), with no mandated professional-specific entity. This flexibility is directly confirmed for attorneys and likely extends to other licensed professions through analogous board rules, though that hasn't been independently confirmed profession-by-profession.
Step 4 — Appoint a registered agent.
Missouri calls this role a "Registered Agent" — required at formation.
Step 5 — Confirm ownership eligibility for every member.
In a Chapter 356 Professional Corporation, all shareholders must be licensed in the same type of professional service, subject to narrow "qualified person" carve-outs. In an ordinary LLC or LLP used by professionals, Missouri's general LLC/LLP statutes don't impose a license-based ownership restriction themselves — but the individual actually performing the licensed service must personally hold that license, and profession-specific ethics rules may layer on additional ownership conditions.
Step 6 — Address malpractice insurance requirements.
No statutory malpractice-insurance mandate was found tied to Chapter 356 PC formation, nor to the ordinary LLC or LLP alternatives. Individual licensing boards may still require coverage as a condition of maintaining a professional license — confirm directly with your board.
Step 7 — Handle ongoing state compliance.
Missouri is unusual in that it doesn't require LLCs (including those used by professionals) to file a periodic annual report or pay an ongoing state franchise-style fee — a notable, comparatively low-maintenance feature relative to most peer states. Professional Corporations may have their own Chapter 356-specific compliance obligations tied to licensing-authority certificates under §356.041. Missouri has a graduated personal income tax with a 2026 top rate of 4.7%, which is scheduled to keep declining under a statutory trigger tied to state revenue growth — so pass-through income from whichever entity you choose is taxed at a comparatively moderate and gradually falling rate.
Step 8 — Watch for Missouri-specific PLLC traps.
The most common Missouri-specific mistake is assuming a licensed professional must use a Professional Corporation, when in fact Missouri's statutes (confirmed for attorneys under RSMo §484.020.1) allow a genuine choice among a PC, an ordinary LLC, or an LLP — picking a PC by default can mean taking on Chapter 356's ownership and certificate requirements when a plain LLC would have worked just as well.
If LLC Attorney Does It for You
- Submit your profession, license number, and ownership details at llcattorney.com.
- LLC Attorney forms the correct entity type for your profession in Missouri and handles the licensing coordination.
- Receive your finished formation documents and registered agent service, plus access to flat-fee attorney consultations (no retainer) for ownership or licensing questions.
When Should You Talk to an Attorney About Your Missouri PLLC?
Talk to an attorney before choosing an entity structure in Missouri if you're unsure whether your specific profession has the same PC/LLC/LLP flexibility confirmed for attorneys, if you're weighing the ongoing Chapter 356 certificate obligations of a PC against the comparative simplicity of an LLC, or if you're bringing on an owner who isn't licensed in your exact professional category.
What You Actually Get With LLC Attorney's Missouri PLLC Formation
The part of Missouri professional-entity formation that trips people up isn't the Secretary of State filing fee — it's picking the right entity type for your specific profession and understanding which one actually gives you the flexibility you want. LLC Attorney helps you weigh that choice correctly from the start.
- PLLC formation in Missouri, starting at $149.
- Licensing board coordination and ownership-eligibility review handled for your specific profession.
- Filing paperwork drafted for Missouri's actual requirements — not a generic multi-state template.
- Access to professionally trained Business Success Advisors at no charge, plus flat-fee attorney consultations (no retainer) for licensing and ownership questions.
Missouri gives licensed professionals real flexibility in entity choice, but picking the wrong one by default can mean unnecessary compliance obligations — LLC Attorney makes sure your entity is set up correctly for your specific profession.
Ready to Form Your Missouri PLLC?
LLC Attorney helps licensed professionals in Missouri form the correct entity type for their profession and serves as your registered agent once it's approved. See our full pricing for all service tiers.
Frequently Asked Questions
No. Missouri doesn't have a PLLC entity type. Licensed professionals use a Professional Corporation under Chapter 356 RSMo, or — confirmed for attorneys — may instead choose an ordinary LLC or an LLP.
Accountants, architects, engineers, attorneys, dentists, physicians, veterinarians, real estate salespeople and brokers, and registered nurses are among the professions eligible to use Missouri's Professional Corporation structure; attorneys specifically also have the option of an ordinary LLC or LLP.
No. Neither the LLC Articles of Organization nor the PC Articles of Incorporation require advance licensing-board certification before the Missouri Secretary of State will file them.
An LLC Articles of Organization costs $50 online or $105 by mail/fax; a Professional Corporation's Articles of Incorporation run roughly $58 and up depending on authorized shares.
In a Professional Corporation, all shareholders must be licensed in the same professional service (with narrow carve-outs). In an LLC or LLP, Missouri's general statutes don't impose the same license-based ownership restriction, though the person actually performing the licensed work must personally hold the license.
Not under the Professional Corporation route, which requires same-profession shareholders. Combining professions under an LLC or LLP isn't confirmed as broadly permitted either — it depends on profession-specific ethics rules that need individual confirmation.
Regardless of whether you choose a Professional Corporation, an LLC, or an LLP, a Missouri licensed professional always remains personally liable for their own malpractice — the entity only shields against each other's malpractice and general business debts.
No statutory malpractice-insurance mandate is tied to forming any of Missouri's professional-entity options, though your specific licensing board may separately require coverage to maintain your license.
Yes. LLC Attorney helps licensed professionals in Missouri form the correct entity type for their profession, starting at $149.