LLC vs. PLLC for Therapists: Choosing the Right Business Entity

Deciding on a business structure is one of the first administrative decisions in starting a private practice — and for therapists, the choice is more constrained than it sounds. Your state may not permit a standard LLC. Many states restrict licensed professionals, including mental health providers, to a specific entity type: the professional limited liability company (PLLC) or a professional corporation (PC). Getting the structure right at the start matters because changing it later requires refiling with the state, potentially updating your licensing board registration, and revising your NPI record.

For where business entity formation fits in the full practice launch sequence, see How to Start a Private Therapy Practice.

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LLC vs. PLLC: The Core Difference

A standard LLC (limited liability company) is available to most businesses. It separates your personal assets from business liabilities, passes income through to your personal tax return, and requires straightforward state filings to form.

A PLLC (professional limited liability company) is a variant designed specifically for state-licensed professionals — therapists, physicians, attorneys, architects, and similar practitioners. The tax treatment and operational mechanics are identical to a standard LLC, but two structural requirements differ:

All members must hold an active professional license. Every owner (member) of a PLLC must be licensed in the same profession in the same state where the PLLC is registered. You cannot bring in an unlicensed business partner as a member. If any member’s license lapses, that can create a compliance problem with the entity registration.

Personal liability for your own professional acts is not eliminated. A PLLC protects you from being personally liable for a co-owner’s malpractice — but you remain personally responsible for your own professional conduct. Malpractice insurance is essential regardless of your entity structure.

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Which Structure Does Your State Require?

This question drives the decision, and you cannot skip it. The answer comes from your state’s business entity law and, in some cases, from your state licensing board’s requirements for licensed professionals.

Roughly 30 states authorize PLLCs for licensed professionals. The remaining states either require a professional corporation (PC), permit standard LLCs, or have no dedicated professional entity statute at all. The landscape breaks down as follows:

States that require a PLLC for licensed therapists include Arizona, Colorado, Florida, Michigan, New York, Texas, Washington, and others. In these states, a licensed therapist forming a practice entity must use a PLLC rather than a standard LLC.

States that permit either an LLC or PLLC: Some states have no PLLC statute at all but allow licensed professionals to use a standard LLC. Therapists in these states can form either without issue.

California is a notable exception. California prohibits LMFTs, LCSWs, licensed professional counselors, and psychologists from forming standard LLCs or standard corporations. The permissible structures are a sole proprietorship, a professional corporation (PC or APPC), or a registered limited liability partnership for multi-owner practices. California’s Board of Behavioral Sciences addresses this explicitly on its website.

The practical step: before filing anything, check your state’s Secretary of State business entity guide and your state licensing board’s website. Look for a page titled something like “permissible entity types for licensed professionals” or “professional entity requirements.” The Texas Secretary of State publishes a Guide for Determining Permissible Entity Types for Licensed Professions that is a useful model for the kind of resource to look for in your own state.

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Why Form an Entity at All?

Many new therapists operate as sole proprietors, especially in the first year. There is no filing required, no annual fees, and no operating agreement to draft. Business income reports on Schedule C of your personal return.

The argument for forming a PLLC or LLC:

Liability separation. If a client brings a civil claim for something other than malpractice — a slip-and-fall at your office, a billing dispute, a contractor issue — the entity structure separates your personal assets from business liabilities. That separation requires keeping business and personal finances genuinely distinct: a dedicated business bank account, no personal expenses run through the practice.

Operate under a practice name. A registered entity lets you use a trade name separate from your personal name. Some referral sources — physicians, hospitals, EAP programs — prefer working with a formally registered practice entity.

Tax flexibility. A PLLC can elect to be taxed as an S-corporation, which reduces self-employment tax once net income reaches the threshold where the savings outweigh compliance costs (covered below).

Operating as a sole proprietor is not wrong — it is simply less protected and less tax-flexible than a properly maintained entity.

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Forming a PLLC: What the Process Involves

Forming a PLLC has a few steps beyond what a standard LLC requires:

Confirm eligibility with your licensing board. Before filing, verify that your state licensing board requires or permits a PLLC for your license type. Some boards require you to register the new entity with them separately after formation — Washington State, for example, requires therapists to have PLLC status reflected on their license.

File articles of organization with your Secretary of State. The articles for a PLLC typically include a professional purpose clause naming the specific licensed service offered (“the practice of licensed clinical social work” or similar). Filing fees vary by state, generally $50–$300.

Name requirements. Most states — Florida and South Dakota are exceptions — require the entity name to include “Professional Limited Liability Company” or the abbreviation “PLLC.” The name cannot imply services outside your licensed scope.

Draft an operating agreement. This internal document governs how the PLLC operates: ownership percentages, income distributions, decision-making authority, and what happens if a member’s license lapses or is revoked. Single-member PLLCs should have one anyway — it is part of what makes the liability protection credible if the entity is ever challenged in litigation.

Notify or register with your licensing board, if required. Confirm whether your state board requires a separate filing after the PLLC is formed. Skipping this step where required is a compliance gap.

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The S-Corp Election: When It Makes Financial Sense

A PLLC defaults to pass-through taxation — net income flows to the owner’s personal return and is subject to self-employment (SE) tax at 15.3% on income up to the Social Security wage base ($176,100 in 2026) and 2.9% above it.

An S-corporation election, filed on IRS Form 2553, does not change your entity under state law — your PLLC remains a PLLC. It changes how the entity is taxed at the federal level. With an S-corp election in effect:

• You pay yourself a reasonable salary as a W-2 employee of your own practice (subject to SE tax and payroll taxes)
• Net income above that salary is taken as owner distributions (not subject to SE tax)

The savings come from the gap between your salary and your total net income. On $150,000 in net practice income, a reasonable therapist salary of $100,000 leaves $50,000 in distributions exempt from SE tax — roughly $7,650 in annual tax reduction, before accounting for compliance costs.

The practical income threshold. The S-corp election adds compliance overhead: payroll processing, quarterly payroll tax filings, and a separately prepared S-corp return (Form 1120-S), which costs more to prepare than a Schedule C. For most solo therapists, the election does not produce net savings until practice net income reaches approximately $80,000–$100,000 per year. Below that threshold, the compliance cost typically exceeds the tax benefit.

Timing. The Form 2553 election must be filed within 75 days of the start of the tax year in which you want it to take effect, or at any time during the prior tax year. For a new practice, the 75-day clock starts from the date of entity formation. Late elections are possible in some circumstances but require a statement of reasonable cause. Do not let this deadline pass inadvertently if you are approaching the income threshold.

IRS reasonable salary requirement. The IRS requires S-corporation owner-employees who provide services to the business to pay themselves a salary that reflects market-rate compensation for those services. For therapists, compensation data from the Bureau of Labor Statistics or regional salary surveys is the standard reference. The IRS has successfully challenged S-corp structures where the owner salary was clearly below market to maximize untaxed distributions.

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Get Your EIN Before Opening a Business Account

An Employer Identification Number (EIN) is your practice entity’s federal tax ID. You need it to open a business bank account, run payroll if you elect S-corp status, and keep your Social Security Number off vendor and subcontractor paperwork. Apply free through the IRS online EIN application — the number is issued immediately upon completing the online form. Apply after your PLLC is formed so you have the entity’s legal name and state registration number ready.

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Frequently Asked Questions

Can I convert from a sole proprietorship to a PLLC after I’ve already started seeing clients?

Yes. You form the PLLC with your state, obtain a new EIN, open a new business bank account, and update your NPI record with the practice’s legal name and entity information. Notify your malpractice insurer and any insurance panels you are contracted with. It adds paperwork but is routine. The fee schedule and billing workflow you put in place carries over — see Setting Up a Fee Schedule and Billing Workflow for Your Therapy Practice for what needs to be documented.

Does a PLLC protect me from a malpractice claim by a client?

No. A PLLC does not shield you from your own professional liability. If a client brings a malpractice claim against you personally, you remain exposed. The PLLC limits liability for business claims and protects co-owners from each other’s malpractice in multi-member practices. Malpractice insurance is a separate and necessary protection.

Do I need an attorney to form a PLLC?

Not always. Many therapists self-file through their Secretary of State’s online portal using a template operating agreement. However, if your state has specific licensing board requirements, if you are forming a multi-member PLLC, or if you are uncertain which entity type your state permits, a brief consultation with an attorney experienced in professional entities in your state is worth the cost.

How does my entity choice affect credentialing?

If you form a PLLC and bill under the practice’s business name rather than your personal name, you will typically need a Type 2 (organizational) NPI in addition to your individual Type 1 NPI. Your CAQH ProView profile will need to reflect the business entity information. For the full NPI and CAQH setup walkthrough, see Insurance Credentialing for Therapists: A Step-by-Step CAQH Walkthrough.

What documents should clients receive at intake regardless of my entity type?

Your business structure has no bearing on your intake document requirements. Every private practice therapist needs a signed Informed Consent, a Notice of Privacy Practices acknowledgment, and the practice’s policies document before or at the first session. The entity choice is a business and tax decision; the documentation requirements are set by HIPAA and your state licensing board. See Going Paperless: Fillable Intake & Consent Forms for Therapists for the complete intake document checklist.