PLLC vs LLC: What Licensed Professionals Need to Know (2026 Guide)

By Frédéric Deltour, Entrepreneur and Business Consultant, 22+ years forming and operating companies.

Published: August 20, 2026 · Last updated: August 20, 2026

Frédéric has used Northwest Registered Agent 3 times to form his own and his clients' companies and NGOs. These are real, honest opinions.

Introduction

If you are a licensed professional starting your own practice, you have probably run into a confusing fork in the road: should you form a regular LLC, or a PLLC? The answer depends heavily on your profession and, more importantly, on your state, and there is a lot of oversimplified advice out there that can lead you astray.

I have helped professionals set up their practices, and the single biggest misunderstanding I see is about what these structures actually protect. Let me walk you through what a PLLC really is, how it differs from a standard LLC, and how to figure out which one you are even allowed to use.

What Is a PLLC?

A PLLC, or Professional Limited Liability Company, is a variation of the standard LLC designed specifically for businesses that provide licensed professional services. Think physicians, dentists, attorneys, certified public accountants, architects, engineers, veterinarians, and licensed therapists, the exact list of professions is defined by each state.

Structurally, a PLLC works much like an ordinary LLC: it is a separate legal entity, it offers pass-through taxation, and it is governed by an operating agreement. The difference is that it is created under rules that recognize the special nature of licensed work, and it comes with extra requirements tied to your license.

The Most Important Difference: Malpractice Liability

This is the point that matters most, and it is where a lot of people get the wrong idea. Neither an LLC nor a PLLC shields you from liability for your own professional malpractice. If you personally make a negligent error in your professional work, you remain personally responsible for it. That is by design, the law does not let licensed professionals hide behind a business entity to escape accountability for their own mistakes.

So what does a PLLC actually protect? Two things. First, it protects you from ordinary business debts and liabilities, the same as a standard LLC, if the practice cannot pay its lease or a vendor, your personal assets are generally shielded. Second, and this is the key professional benefit, it protects you from the malpractice of your partners. In a multi-owner practice, a PLLC generally means you are not personally on the hook for a co-owner's negligent act. That partner-shielding is often the main reason a professional practice chooses this structure.

Because of this, most professionals carry professional liability (malpractice) insurance regardless of their entity type. The entity handles business liability, insurance handles professional liability. You need both.

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Which States Require, Allow, or Ban PLLCs

Here is where it gets genuinely complicated, and where you must check your own state. Standard LLCs are available in all fifty states, but PLLCs are not universal. Roughly thirty states plus the District of Columbia allow PLLC formation, and even among those the rules differ:

• Some states require professionals to use a PLLC rather than a standard LLC. In those states, a licensed professional generally cannot form an ordinary LLC to deliver their services.
• Some states do not offer PLLCs at all. Professionals there typically use a Professional Corporation (PC), a standard LLC, or a professional partnership, depending on what the state allows. California is the best-known example, it does not permit licensed professionals to render services through an LLC or PLLC at all, so many California professionals use a professional corporation instead.
• Some states let licensed professionals use a standard LLC, with the professional rules layered on top.

Because the treatment varies so widely and changes over time, the only reliable approach is to confirm two things: what your Secretary of State allows, and what your specific professional licensing board requires. Do not assume a structure your colleague used in another state is available to you.

Ownership Rules and Extra Formation Steps

Ownership is restricted. Unlike a standard LLC, which almost anyone can own, most states require that every member of a PLLC holds an active license in the same profession the company practices. Unlicensed investors generally cannot be owners. This keeps professional practices controlled by qualified practitioners.

Formation has an extra step. Forming a PLLC usually means more than filing Articles of Organization. Many states require approval or a certificate from your professional licensing board before or alongside the state filing, confirming that the owners are properly licensed. Your company name typically must include "PLLC" or "P.L.L.C." so the public knows it is a professional entity.

Ongoing oversight is dual. A PLLC answers to both the Secretary of State (annual reports, fees) and your professional board (continuing education, ethics rules, recordkeeping). You are running a licensed practice inside a business entity, and both sets of rules apply.

Get Your Professional Entity Set Up Right for $39 →

How to Choose Between an LLC and a PLLC

Start by answering three questions in order. First, does your state consider your work a licensed profession that triggers PLLC rules? If not, a standard LLC is likely fine. Second, does your state require, allow, or ban PLLCs for your profession? That often decides the matter for you. Third, if you have a choice, are you a solo practitioner or in a multi-owner practice? The partner-shielding benefit of a PLLC matters most when you have co-owners.

For many solo professionals in states that allow either option, the practical difference is smaller than it looks, because your own malpractice exposure is the same either way and is handled by insurance. In multi-owner practices, or in states that mandate a PLLC, the choice is essentially made for you. When in doubt, a quick conversation with your licensing board and, if the stakes are high, an attorney in your state, is money well spent.

When to Form an LLC

Whichever structure fits your practice, the fundamentals are the same. Start with how to form an LLC, check what it will cost in your state, and read our guide to business licenses for an LLC, since licensed professionals almost always have additional licensing on top of the entity itself.

Because a PLLC often involves board approval and profession-specific naming rules, using a formation service that handles the details correctly is genuinely helpful. I have formed three of my own companies through Northwest Registered Agent, and it is the service I recommend for getting a professional entity set up cleanly the first time.

Form Your LLC or PLLC with Northwest for $39 →

Final Thoughts

The PLLC exists for one reason: to give licensed professionals a business entity that fits the special rules governing their work. It protects you from business debts and from a partner's malpractice, but never from your own, which is why malpractice insurance stays essential no matter what.

Before you file anything, confirm what your state and your licensing board actually require, because the rules differ dramatically from one state to the next. Get that part right, and the rest of setting up your practice is straightforward.

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Sources

The guidance in this article is based on more than two decades of firsthand experience forming and operating companies, supported by the following authoritative resources:

• State Secretary of State offices: PLLC authorizing statutes and formation rules.
• State professional licensing boards: ownership and approval requirements.
• U.S. Small Business Administration (SBA.gov): choosing a business structure.
• Internal Revenue Service (IRS.gov): tax treatment of LLCs.