A PLLC, or professional limited liability company, is a version of the LLC built for people who hold a state-issued professional license. Comparing a PLLC vs an LLC comes down to three things: who is allowed to own it, what happens when a member commits malpractice, and how much state oversight sits on top of the entity. The tax treatment is the same. The paperwork and the ownership rules are not.
The Core Differences
A standard LLC can be owned by anyone — individuals, trusts, other companies, foreign investors — and can be used for nearly any lawful business. You file articles of organization, pay a fee, and you’re done. Members’ personal assets are shielded from the company’s debts and ordinary lawsuits.
A PLLC keeps that same shield against business debts but adds restrictions that only make sense if you understand why it exists. State regulators don’t want licensed professionals operating behind a generic entity that obscures who is actually responsible for the work. The PLLC preserves the LLC’s organizational and tax structure while keeping each professional personally answerable for their own professional errors and limiting ownership to people who hold the right license.
Three practical differences flow from that:
- Every member generally must hold an active license in the profession the PLLC provides.
- Members remain personally liable for their own malpractice, though they get protection from a co-member’s malpractice.
- Formation and ongoing compliance involve the state licensing board, not just the secretary of state.
Who Has to Use a PLLC
If you hold a state-issued license to practice your profession, your state likely either requires or strongly encourages a PLLC rather than a standard LLC. The specific list varies by state but usually includes:
- Physicians and surgeons
- Attorneys
- Certified public accountants
- Architects and engineers
- Dentists
- Chiropractors
- Veterinarians
- Licensed mental health professionals
- Optometrists
For most licensed professionals the choice is not really a choice. If your state requires a PLLC and you form a standard LLC instead, the state can reject your filing, dissolve the entity later, or strip away your liability protection. Check your state’s rules before anything else.
Ownership and Membership Restrictions
This is the sharpest divergence. A standard LLC can admit anyone as a member. A PLLC locks ownership to licensed professionals: in most states every member must hold an active license in the profession the PLLC provides. A few states permit a minority of non-licensed owners, but those states are the exception.
The licensing requirement is ongoing, not just a formation checkbox. If a member’s license lapses, is suspended, or is revoked, that person usually must surrender their ownership interest within a timeframe set by state law.
Inheritance creates a parallel problem. When a PLLC member dies, their ownership interest cannot simply pass to a spouse or child who lacks the right license. The estate may hold the interest during administration, but an unlicensed heir generally cannot become a permanent member. The operating agreement should spell out buyout terms, valuation methods, and timelines, because the state default rules often force a sale on terms nobody would choose voluntarily.
How Liability Protection Differs
Both entities protect members from the company’s ordinary business debts. If the firm defaults on a lease, stiffs a vendor, or faces a slip-and-fall claim in the waiting room, creditors can go after the business but not the members’ personal assets. On that front the two are identical.
Malpractice is where they split. In a PLLC, the member who personally commits the error — the surgeon who operates on the wrong knee, the accountant who botches the return — remains personally liable for that mistake. The PLLC does not shield you from your own professional negligence, and your personal assets are exposed to a judgment that exceeds the firm’s insurance and business assets.
What the PLLC does protect against is a partner’s malpractice. If your law partner commits malpractice on a case you had no involvement in and did not supervise, the PLLC generally prevents the injured client from reaching your personal assets. In a traditional general partnership every partner shares that exposure regardless of involvement. That protection against a co-member’s errors is one of the main reasons professionals choose a PLLC over a general partnership.
Why Malpractice Insurance Matters More Here
Because the PLLC does not erase personal liability for your own professional errors, malpractice insurance is the real safety net. The standard policy structure for most professionals is $1 million per claim with a $3 million annual aggregate, though high-risk specialties such as surgery or obstetrics often carry higher limits.
Several states require proof of malpractice coverage as a condition of forming or maintaining a PLLC. Minimums vary, but coverage requirements of $100,000 to $1 million per professional are common where insurance is mandated. Even where the state does not require it, going without coverage inside a PLLC is reckless. One bad outcome can wipe out everything you own.
Tax Treatment Is the Same
The IRS does not distinguish between an LLC and a PLLC. A single-member entity defaults to a disregarded entity taxed on the owner’s personal return. A multi-member entity defaults to a partnership. Either can elect C corporation status by filing Form 8832 or S corporation status by filing Form 2553.1Internal Revenue Service. LLC Filing as a Corporation or Partnership
Many high-earning professionals elect S corporation treatment. Under that election, only the salary the PLLC pays you is subject to the 15.3% self-employment tax (12.4% Social Security plus 2.9% Medicare); remaining profits passed through as distributions are not hit with that tax.2Internal Revenue Service. Self-Employment Tax (Social Security and Medicare Taxes) The salary has to be reasonable for your qualifications and role; paying yourself an artificially low wage to inflate distributions invites an audit. Because tax treatment is identical across the two entity types, taxes should not drive your choice between LLC and PLLC.
Formation and Ongoing Compliance
The basic filing process mirrors a standard LLC: you submit articles of organization to the secretary of state and pay a filing fee. PLLCs add layers.
Licensing Board Approval
Before or alongside your state filing, you need clearance from the professional licensing board that governs your field. Depending on the state, that means obtaining a certificate of good standing, a certificate of authority, or written board approval for each member. Every member’s active license status gets verified, and some states require the licensing board to sign off before the secretary of state will accept the formation documents.
Naming Requirements
PLLC names must include a professional designator — typically “PLLC,” “P.L.L.C.,” or the full phrase “Professional Limited Liability Company.” Some boards impose additional naming rules. Law firm PLLCs in several states, for instance, must include the surname of at least one member and cannot use purely fanciful or marketing-style names. Check both your secretary of state’s naming rules and your licensing board’s requirements; they do not always match.
Keeping It in Good Standing
Every member’s professional license must stay current. If the state learns that a member’s license has lapsed or been revoked, it can force that person out of the PLLC or dissolve the entity. Many licensing boards require PLLCs to verify member license status during annual registration renewals, which is separate from the annual report the LLC or PLLC files with the secretary of state. Missing the annual report deadline can trigger administrative dissolution and loss of your liability protection.
One more PLLC-specific wrinkle: some states only allow a PLLC to provide services in a single profession. A group of doctors and lawyers generally cannot share a single PLLC. Each profession may need its own entity even if the professionals share office space and administrative staff.
State Availability
Not every state recognizes the PLLC as a distinct entity. A majority of states and the District of Columbia allow PLLC formation, but roughly a dozen do not. In those states, licensed professionals typically form a professional corporation (often designated “PC” or “PA”) or, in some jurisdictions, a registered limited liability partnership. A few states let licensed professionals form a standard LLC with no special designation.
California is a special case. It has historically prohibited most licensed professionals from using any LLC structure for professional services, pushing them toward professional corporations or limited liability partnerships. California’s specifics have shifted over time, so professionals there should verify current rules with the state bar or their licensing board.
If your PLLC operates across state lines, you will likely need to register as a foreign entity in each additional state where you do business, pay a separate fee, appoint a registered agent there, and confirm that your members hold licenses recognized by the new state’s licensing board. Failing to register can bring fines and can bar you from filing lawsuits in that state’s courts.
Choosing Between an LLC and a PLLC When Your State Gives You a Choice
If you are in a state that allows licensed professionals to pick either entity, the PLLC makes sense whenever you practice with other licensed professionals and want protection from their potential malpractice. A solo practitioner in an optional-PLLC state might prefer a standard LLC for simplicity: there is no partner malpractice to shield against, and your personal exposure to your own malpractice exists under either structure. Because the tax treatment is identical, the real decision factors are compliance burden, ownership restrictions, and partner liability. For most multi-member professional practices, the PLLC is worth the extra paperwork.