Key Takeaways
- Massachusetts recognizes the PLLC as a distinct entity type for licensed professionals (Mass. Gen. Laws Ch. 156C, §6 (certificate requirements at §12); "professional service" definition cross-referenced from Ch. 156A §2)
- Massachusetts requires licensing board approval before the filing agency will accept your PLLC filing
- Filing fee: $500 by mail / $520 online
- Massachusetts hasn't published a clean, standalone multi-discipline allowance for PLLCs the way Illinois or Maryland has for their equivalents — because MA's professional-service definition is imported wholesale from the older PC Act, treat combining professions as something that needs direct confirmation from each applicable regulating board rather than an assumed right.
- Same-day PLLC formation available through LLC Attorney, at no markup on state fees
If you're a licensed professional in Massachusetts — a physician, attorney, engineer, or similar occupation — Mass. Gen. Laws Chapter 156C lets you form a PLLC, but your regulating board's eligibility certificate must be attached to the filing itself, not obtained afterward.
This guide covers exactly how to form a Massachusetts PLLC in 2026 — the attached-certificate requirement, the additional SJC Rule 3:06 overlay that governs law firms specifically, the $500-$520 cost, and what liability protection a PLLC actually provides for negligent professional acts.
What Is a Massachusetts 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. Massachusetts recognizes the PLLC as a distinct entity type for licensed professionals (Mass. Gen. Laws Ch. 156C, §6 (certificate requirements at §12); "professional service" definition cross-referenced from Ch. 156A §2).
Who Needs a PLLC in Massachusetts?
Physicians and surgeons, dentists, attorneys, CPAs, architects, engineers, chiropractors, psychologists and therapists, podiatrists, optometrists, registered nurses, veterinarians, physical therapists, acupuncturists, and electrologists are covered, borrowing Massachusetts's definition of "professional service" from the older Professional Corporation Act (Ch. 156A §2) rather than a standalone PLLC definition.
Do I Need Licensing Board Approval First?
Massachusetts requires the Certificate of Organization to be filed together with a certificate from the applicable state regulating board confirming your members and managers meet that board's eligibility standards as of the filing date — Ch. 156C §6 makes this an attached, same-transaction requirement, not a separate post-filing step. The certificate of organization must also state the specific professional services rendered and any conditions the board imposes, including liability insurance.
Get your regulating board's eligibility certificate lined up before you attempt the state filing — Massachusetts won't accept a Professional LLC Certificate of Organization without it attached, so board turnaround time directly extends your formation timeline rather than running in parallel afterward.
How to Form a Massachusetts PLLC
- Filing agency: Massachusetts Secretary of the Commonwealth, Corporations Division
- Form: Professional Limited Liability Company Certificate of Organization, filed together with the regulating board's eligibility certificate
- Filing fee: $500 by mail / $520 online
- Processing time: About 1-2 business days for online filing; roughly a week by mail
- Expedited option: Same-day expedited processing available for an additional $20
- Name requirement: Must include "Professional Limited Liability Company" or the abbreviation "P.L.L.C."
Who Can Own a Massachusetts PLLC?
Members and managers must meet the applicable regulating board's eligibility standards, confirmed by the board's certificate attached to your filing — Massachusetts also imposes liability-insurance conditions set by the regulating board as part of that same eligibility framework.
Massachusetts hasn't published a clean, standalone multi-discipline allowance for PLLCs the way Illinois or Maryland has for their equivalents — because MA's professional-service definition is imported wholesale from the older PC Act, treat combining professions as something that needs direct confirmation from each applicable regulating board rather than an assumed right.
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 Massachusetts 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.
Confirmed as a statutory hook: Ch. 156C §6 explicitly ties PLLC formation and maintenance to conditions established by the applicable regulating board, including the provision of liability insurance. The specific dollar thresholds are set board-by-board rather than in one statewide figure — for attorneys, that's the Board of Bar Overseers (BBO).
How Is a Massachusetts 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.
Massachusetts has a flat 5% personal income tax, plus a 4% "Millionaire's Tax" surtax on income above roughly $1 million, so a Massachusetts PLLC's pass-through profit is taxed at those rates at the state level, on top of federal income and self-employment tax.
Massachusetts PLLCs owe a $500 annual report fee to the Corporations Division, separate from and in addition to state income tax — this is notably higher than most states' annual LLC report fees.
How to Set Up Your Massachusetts PLLC Step by Step
If You Do It Yourself
Step 1 — Confirm you need a PLLC (not a plain LLC) for your profession.
Physicians and surgeons, dentists, attorneys, CPAs, architects, engineers, chiropractors, psychologists and therapists, podiatrists, optometrists, registered nurses, veterinarians, physical therapists, acupuncturists, and electrologists are covered, borrowing Massachusetts's definition of "professional service" from the older Professional Corporation Act (Ch. 156A §2) rather than a standalone PLLC definition.
Step 2 — Get licensing board sign-off if required.
Massachusetts requires the Certificate of Organization to be filed together with a certificate from the applicable state regulating board confirming your members and managers meet that board's eligibility standards as of the filing date — Ch. 156C §6 makes this an attached, same-transaction requirement, not a separate post-filing step. The certificate of organization must also state the specific professional services rendered and any conditions the board imposes, including liability insurance. Get your regulating board's eligibility certificate lined up before you attempt the state filing — Massachusetts won't accept a Professional LLC Certificate of Organization without it attached, so board turnaround time directly extends your formation timeline rather than running in parallel afterward.
Step 3 — File your formation documents.
File the Professional Limited Liability Company Certificate of Organization, filed together with the regulating board's eligibility certificate with Massachusetts Secretary of the Commonwealth, Corporations Division, $500 by mail / $520 online.
Step 4 — Appoint a registered agent.
Massachusetts calls this role a "Resident Agent" — required at formation.
Step 5 — Confirm ownership eligibility for every member.
Members and managers must meet the applicable regulating board's eligibility standards, confirmed by the board's certificate attached to your filing — Massachusetts also imposes liability-insurance conditions set by the regulating board as part of that same eligibility framework.
Step 6 — Address malpractice insurance requirements.
Confirmed as a statutory hook: Ch. 156C §6 explicitly ties PLLC formation and maintenance to conditions established by the applicable regulating board, including the provision of liability insurance. The specific dollar thresholds are set board-by-board rather than in one statewide figure — for attorneys, that's the Board of Bar Overseers (BBO).
Step 7 — Handle ongoing state compliance.
Massachusetts PLLCs owe a $500 annual report fee to the Corporations Division, separate from and in addition to state income tax — this is notably higher than most states' annual LLC report fees. Massachusetts has a flat 5% personal income tax, plus a 4% "Millionaire's Tax" surtax on income above roughly $1 million, so a Massachusetts PLLC's pass-through profit is taxed at those rates at the state level, on top of federal income and self-employment tax.
Step 8 — Watch for Massachusetts-specific PLLC traps.
The most common Massachusetts-specific mistake is treating the Certificate of Organization as a self-contained filing — it isn't. You need your regulating board's eligibility certificate attached at the time of filing, not obtained afterward. Law firms have an extra layer on top of that: SJC Rule 3:06 governs law-firm LLCs and PLLCs specifically, stacked on top of the general Ch. 156C rules that apply to every other profession.
If LLC Attorney Does It for You
- Submit your profession, license number, and ownership details at llcattorney.com.
- LLC Attorney forms your Massachusetts PLLC, coordinating any required licensing board approval before filing.
- 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 Massachusetts PLLC?
Talk to an attorney before forming your Massachusetts PLLC if you're a law firm navigating both the general Ch. 156C PLLC rules and the additional SJC Rule 3:06 requirements, if you're unsure how to obtain your regulating board's eligibility certificate before filing, or if your board imposes liability-insurance conditions you need help satisfying.
Is Massachusetts a State Where PLLC Formation Is More Complex?
Massachusetts stacks two layers of oversight on top of each other for law firms specifically. Every Massachusetts PLLC — law firms included — must attach a regulating board's eligibility certificate to its Certificate of Organization under the general Ch. 156C rules. But attorneys face an additional, attorney-specific overlay: Supreme Judicial Court Rule 3:06, "Use of Limited Liability Entities to Practice Law," which imposes its own conditions on top of the general PLLC framework. A Massachusetts law firm PLLC is governed by two stacked authorities, not one — worth a direct attorney consultation before you file.
What You Actually Get With LLC Attorney's Massachusetts PLLC Formation
The part of Massachusetts PLLC formation that trips people up isn't the Certificate of Organization form itself — it's getting your regulating board's eligibility certificate in hand before you file, and, for law firms, navigating the additional SJC Rule 3:06 requirements stacked on top. LLC Attorney handles both correctly from the start.
- PLLC formation in Massachusetts, starting at $149.
- Licensing board coordination and ownership-eligibility review handled for your specific profession.
- Filing paperwork drafted for Massachusetts'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.
Massachusetts requires your board's certificate attached at filing, and law firms face an extra layer of SJC oversight — LLC Attorney makes sure your PLLC clears both correctly.
Ready to Form Your Massachusetts PLLC?
LLC Attorney forms Massachusetts PLLCs for licensed professionals, coordinating the licensing board approval step and serving as your resident agent once your PLLC is approved. See our full pricing for all service tiers.
Frequently Asked Questions
Yes. Massachusetts recognizes the PLLC as a distinct entity type under Mass. Gen. Laws Chapter 156C, §6, though its "professional service" definition is borrowed by cross-reference from the older Professional Corporation Act.
Physicians, dentists, attorneys, CPAs, architects, engineers, chiropractors, psychologists and therapists, podiatrists, optometrists, registered nurses, veterinarians, physical therapists, acupuncturists, and electrologists are covered under Massachusetts's PLLC provisions.
Yes, and it must be attached at filing. Massachusetts requires a certificate from the applicable regulating board confirming your members' and managers' eligibility to be filed together with your Certificate of Organization — the state won't accept the filing without it.
The Massachusetts PLLC filing fee is $500 by mail or $520 online, notably higher than most states.
Members and managers must meet the applicable regulating board's eligibility standards, confirmed by a certificate attached to your filing, and the board may also impose liability-insurance conditions.
Massachusetts hasn't published a clean multi-discipline allowance for PLLCs — treat combining professions as something that needs direct confirmation from each applicable regulating board rather than an assumed right.
A Massachusetts 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.
Yes, confirmed by statute — Ch. 156C §6 explicitly ties PLLC formation and maintenance to conditions set by the applicable regulating board, including required liability insurance, with specific thresholds varying by board (the Board of Bar Overseers for attorneys, for example).
Yes. LLC Attorney helps licensed professionals in Massachusetts form the correct entity type for their profession, starting at $149.