Key Takeaways
- Montana recognizes the PLLC as a distinct entity type for licensed professionals (Montana LLC Act, Title 35, Chapter 8, Part 13 (MCA §§35-8-1301 et seq.))
- Montana requires licensing board approval before the filing agency will accept your PLLC filing
- Filing fee: $35 (same as a standard LLC)
- Explicitly permitted by statute, and unusually so. MCA 35-8-1301 allows a PLLC to be organized for two or more professions, or for a combination of professional and general business purposes, "to the extent permitted by the licensing laws and rules... applicable to the professions" involved. This makes Montana meaningfully more permissive than most peer states, which typically require single-profession ownership throughout.
- LLC Attorney does not form PLLCs or other professional entities — this guide is educational; where your profession permits a standard LLC or corporation, LLC Attorney can form that
If you're a licensed professional in Montana — an attorney, physician, or similar occupation — state law generally requires you to form a Professional LLC (PLLC) instead of a standard LLC, with ownership restricted to people who share your professional license unless you're combining professions under Montana's unusually permissive multidisciplinary rule.
This guide covers exactly how to form a Montana PLLC in 2026 — which professions need one, board coordination for law and medicine specifically, the $35 filing cost, and the hard April 15 annual report deadline that carries zero grace period before dissolution.
What Is a Montana 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.
Yes. Montana recognizes the PLLC as a distinct entity type for licensed professionals (Montana LLC Act, Title 35, Chapter 8, Part 13 (MCA §§35-8-1301 et seq.)).
Who Needs a PLLC in Montana?
Any profession where the service "may lawfully be rendered only by persons licensed under a licensing law of this state" falls under Montana's PLLC framework — this includes attorneys, physicians, dentists, CPAs and public accountants, architects, professional engineers, chiropractors, optometrists, podiatrists, psychologists, and veterinarians, among other state-licensed occupations.
Do I Need Licensing Board Approval First?
For at least law and medicine, formation routes through the relevant licensing board — the State Bar of Montana for attorneys, the Montana medical licensing board for physicians — in addition to the Secretary of State filing itself. Montana PLLC Articles of Organization must also state the licensing authority with jurisdiction over the professional service being rendered, and members must be verified as licensed to render that service.
Budget time for board-level coordination alongside the Secretary of State filing rather than treating the SOS filing as the only step — for professions like law and medicine specifically, the board's involvement functions as a real precondition, not just an after-the-fact compliance check. (Verify the exact board-approval mechanic against MCA 35-4-301 for your specific profession before publishing final client guidance.)
How to Form a Montana PLLC
- Filing agency: Montana Secretary of State
- Form: Articles of Organization (Professional Limited Liability Company)
- Filing fee: $35 (same as a standard LLC)
- Processing time: About 5-6 business days standard online processing
- Expedited option: 24-hour or approximately 1-hour expedited options available for additional fees
- Name requirement: Must contain "professional limited liability company," "professional limited company," "professional l.l.c.," "professional llc," "p.l.l.c.," or "pllc," and must also conform to any naming rule imposed by the relevant licensing authority
Who Can Own a Montana PLLC?
Members must be licensed to render the same specific professional service — a physician cannot co-own a PLLC with a dentist, nurse, or pharmacist under the same entity, per MCA 35-4-301 as cited by secondary sources on the single-profession ownership rule.
Explicitly permitted by statute, and unusually so. MCA 35-8-1301 allows a PLLC to be organized for two or more professions, or for a combination of professional and general business purposes, "to the extent permitted by the licensing laws and rules... applicable to the professions" involved. This makes Montana meaningfully more permissive than most peer states, which typically require single-profession ownership throughout.
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.
A Montana PLLC shields members from each other's malpractice and from ordinary business debts, but never from a member's own negligent professional acts — that liability follows the individual professional regardless of the entity wrapper.
No uniform statutory malpractice-insurance requirement was confirmed under Part 13 itself. Individual licensing boards may separately require coverage as a condition of maintaining a license — confirm directly with your board.
How Is a Montana 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.
Montana uses a two-bracket graduated personal income tax for 2026 — a 4.7% lower bracket and a top bracket in the 5.65%-5.9% range, with further reductions scheduled to bring the top rate toward 5.4% in 2027. Montana's flat 6.75% Corporate Income Tax applies only if the PLLC elects C-corp treatment, and the state has no general sales tax.
Montana PLLCs must file an annual report with the Secretary of State by April 15 each year, with a $20 fee — and critically, there is no grace period for a missed deadline. A late filing triggers immediate administrative dissolution, one of the harder compliance deadlines in this batch of states.
How to Set Up Your Montana PLLC Step by Step
If You Do It Yourself
Step 1 — Confirm you need a PLLC (not a plain LLC) for your profession.
Any profession where the service "may lawfully be rendered only by persons licensed under a licensing law of this state" falls under Montana's PLLC framework — this includes attorneys, physicians, dentists, CPAs and public accountants, architects, professional engineers, chiropractors, optometrists, podiatrists, psychologists, and veterinarians, among other state-licensed occupations.
Step 2 — Get licensing board sign-off if required.
For at least law and medicine, formation routes through the relevant licensing board — the State Bar of Montana for attorneys, the Montana medical licensing board for physicians — in addition to the Secretary of State filing itself. Montana PLLC Articles of Organization must also state the licensing authority with jurisdiction over the professional service being rendered, and members must be verified as licensed to render that service. Budget time for board-level coordination alongside the Secretary of State filing rather than treating the SOS filing as the only step — for professions like law and medicine specifically, the board's involvement functions as a real precondition, not just an after-the-fact compliance check. (Verify the exact board-approval mechanic against MCA 35-4-301 for your specific profession before publishing final client guidance.)
Step 3 — File your formation documents.
File the Articles of Organization (Professional Limited Liability Company) with Montana Secretary of State, $35 (same as a standard LLC).
Step 4 — Appoint a registered agent.
Montana calls this role a "Registered Agent" — required at formation.
Step 5 — Confirm ownership eligibility for every member.
Members must be licensed to render the same specific professional service — a physician cannot co-own a PLLC with a dentist, nurse, or pharmacist under the same entity, per MCA 35-4-301 as cited by secondary sources on the single-profession ownership rule.
Step 6 — Address malpractice insurance requirements.
No uniform statutory malpractice-insurance requirement was confirmed under Part 13 itself. Individual licensing boards may separately require coverage as a condition of maintaining a license — confirm directly with your board.
Step 7 — Handle ongoing state compliance.
Montana PLLCs must file an annual report with the Secretary of State by April 15 each year, with a $20 fee — and critically, there is no grace period for a missed deadline. A late filing triggers immediate administrative dissolution, one of the harder compliance deadlines in this batch of states. Montana uses a two-bracket graduated personal income tax for 2026 — a 4.7% lower bracket and a top bracket in the 5.65%-5.9% range, with further reductions scheduled to bring the top rate toward 5.4% in 2027. Montana's flat 6.75% Corporate Income Tax applies only if the PLLC elects C-corp treatment, and the state has no general sales tax.
Step 8 — Watch for Montana-specific PLLC traps.
The single most important Montana-specific fact to flag is the April 15 annual report deadline: unlike many states that offer a grace period or late fee before dissolution, Montana administratively dissolves a PLLC immediately upon a missed deadline, with no cushion. Set a calendar reminder well before April 15, not on the day itself.
Where LLC Attorney Fits In
LLC Attorney doesn't form Montana PLLCs or other professional entities, and the filing steps above are for you or your attorney to complete. What we can do:
- Form a standard Montana LLC or corporation the same day where your profession permits one.
- Handle S-corp elections.
- Serve as your Registered Agent (registered agent).
- Connect you with flat-fee attorney consultations (no retainer) for licensing and ownership questions before you file.
When Should You Talk to an Attorney About Your Montana PLLC?
Talk to an attorney before forming your Montana PLLC if you're combining two or more professions under MCA 35-8-1301 and need to confirm each licensing board actually permits the combination, if you're an attorney or physician navigating board-level formation requirements, or if you need a compliance calendar built around the hard April 15 deadline.
Is Montana a State Where PLLC Formation Is More Complex?
Montana combines an unusually permissive multidisciplinary rule (MCA 35-8-1301 explicitly allows combining professions in one PLLC, to the extent licensing rules allow) with an unusually unforgiving compliance deadline — the April 15 annual report has no grace period and triggers immediate administrative dissolution if missed. Getting the multidisciplinary structure right on the front end doesn't help if the entity lapses on the back end from a missed report.
How LLC Attorney Can Help Montana Professionals
LLC Attorney doesn't form professional entities like PLLCs. This guide exists so professionals get the Montana rules right — here's what we do offer.
- Standard LLC or corporation formation in Montana, where your profession permits one — no markup on state fees.
- S-corp election handling when that fits your tax situation.
- Registered agent (Registered Agent) service in Montana.
- Access to professionally trained Business Success Advisors at no charge, plus flat-fee attorney consultations (no retainer) for licensing and ownership questions.
Need Help Starting Your Montana Business?
LLC Attorney doesn't form professional entities like PLLCs; if your profession allows a standard LLC or corporation in Montana, we can form it and serve as your registered agent; if you're unsure which entity your license requires, a flat-fee attorney consultation can settle it before you file. See our full pricing for all service tiers.
Frequently Asked Questions
Yes. Montana recognizes the PLLC as a distinct entity type for licensed professionals under Title 35, Chapter 8, Part 13 of the Montana LLC Act (MCA §§35-8-1301 et seq.).
Attorneys, physicians, dentists, CPAs, architects, professional engineers, chiropractors, optometrists, podiatrists, psychologists, and veterinarians are among the professions required to use a Montana PLLC when the service may lawfully be rendered only by a licensed person.
Yes, for at least law and medicine — formation routes through the relevant licensing board (the State Bar of Montana, or the state medical licensing board) in addition to the Secretary of State filing. Other professions should confirm their own board's specific process.
The Montana PLLC filing fee is $35, the same as a standard LLC's Articles of Organization fee, with 24-hour or roughly 1-hour expedited options available for additional cost.
Members must be licensed to render the same specific professional service the PLLC was organized for — a physician, for example, cannot co-own the same PLLC with a dentist or pharmacist.
Yes — Montana is unusually permissive here. MCA 35-8-1301 explicitly allows a PLLC organized for two or more professions, or a combination of professional and general business purposes, as long as the relevant licensing laws and rules for each profession permit it.
A Montana PLLC shields members from each other's malpractice and from ordinary business debts, but never from a member's own negligent professional acts — that liability always follows the individual professional.
No uniform statutory malpractice-insurance mandate was confirmed under Montana's Part 13, though your specific licensing board may separately require coverage as a condition of maintaining your license.
No. LLC Attorney does not form PLLCs, professional corporations, or other license-restricted professional entities in Montana or anywhere else. We form standard LLCs and corporations (including S-corp elections), provide registered agent service, and offer flat-fee attorney consultations if you need help confirming which entity your license allows.