What Is a Professional Limited Liability Company (PLLC)?

A PLLC can help professionals operate a business while meeting state licensing requirements. While it offers some liability protection and tax flexibility, the rules for forming and running a PLLC vary by state and profession. Notably, some states (such as California) do not permit professionals to form LLCs or PLLCs at all, requiring them to form Professional Corporations (PC) instead. Because these rules vary, it’s important to understand your state’s requirements before choosing a business structure.

How a Professional Limited Liability Company (PLLC) Works

A PLLC is a separate legal entity from its owners, who are called members. This means the business can:

• Sign contracts
• Own property
• Open bank accounts
• Operate under its own legal name

Like a standard LLC, a PLLC usually protects members from personal responsibility for the company’s debts and obligations.

However, a PLLC does not protect a professional from their own malpractice. If a member makes a professional mistake, they are still personally responsible. The key benefit is that members are generally not responsible for the malpractice or negligence of other members.

When Is a PLLC Required?

A PLLC is required when state law says licensed professionals cannot use a standard LLC for their services.

This usually happens when:

• The business provides regulated professional services.
• All owners must be licensed in the same profession.
• The state restricts professionals from using regular LLCs.
• The owners want pass-through taxation and need to meet professional licensing rules.

Some states give professionals a choice between a PLLC and a PC. Other states, such as California, do not allow any LLC-based structure for licensed professionals and require a Professional Corporation (PC) instead.

PLLC vs. Professional Corporation (PC)

Both PLLCs and Professional Corporations (PCs) are business structures created for licensed professionals, but the right choice depends largely on state law and professional licensing rules. Some states allow professionals to choose between a PLLC and a PC, while others require one specific structure. Other factors, such as management flexibility, tax treatment, and compliance requirements, may also affect which option is best.

For a detailed comparison of how these two structures differ, refer to PC vs. PLLC: What’s the difference?

Which Professions Can Form a PLLC?

A PLLC is available to certain licensed professionals. These are professions that require a state-issued license to legally provide services.

Common professions that may be required or allowed to form a PLLC include:

• Doctors and other healthcare providers.
• Attorneys (lawyers).
• Accountants and Certified Public Accountants (CPAs).
• Architects and engineers.
• Dentists.
• Veterinarians.
• Mental health professionals, such as therapists and counselors.

In many states, PLLCs can be formed by one owner or multiple owners. A single-member PLLC allows a solo professional to operate their practice under a professional entity while receiving the same legal structure as larger firms.

Whether a professional must form a PLLC, may form one, or can instead use a regular LLC depends on state law and licensing board rules. These rules vary by profession and location, so it’s important to review your state’s requirements before choosing a business structure.

How to Form a PLLC?

While the exact process varies by state, forming a PLLC usually follows these steps.

Step 1: Confirm Professional Eligibility

Before forming a PLLC, confirm that:

• Your profession qualifies under state law.
• All owners have active licenses.
• Your state allows PLLCs for your profession.

Step 2: Choose a Compliant Business Name

PLLC names usually must include a designation such as “PLLC” or “Professional Limited Liability Company.”

Some states also require:

• A licensed member’s surname in the name.
• Approval from a licensing board before filing.

Step 3: File Formation Documents

You must file Articles of Organization with the Secretary of State. These filings may require:

• License numbers.
• Proof of authorization.
• Board certification.

Step 4: Obtain Licensing Board Approval

Many states require approval from a professional licensing board. This step often delays filings, as the Secretary of State may not approve the PLLC without proof of authorization.

Step 5: Maintain Ongoing Compliance

After formation, maintaining a PLLC is similar to maintaining a standard LLC, with a few additional professional requirements.

In general, a PLLC must:

• Keep all required professional licenses active and in good standing.
• File annual or periodic reports with the state.
• Maintain a registered agent.

In addition, many states require PLLCs to meet profession-specific obligations, such as:

• Carrying professional liability (malpractice) insurance.
• Providing proof of licensure or authorization to a state licensing board.
• Notifying the state or licensing board of ownership or membership changes.

Because requirements vary by state and profession, it’s important to confirm both business and licensing obligations.

Determining whether a PLLC is the right fit for your practice—or the only legal option in your state—can be a complex task. If you are unsure about your eligibility, an attorney can guide you through each step, ensuring your professional practice starts on a solid and compliant foundation.