Is a PLLC the same as an LLC?

No. A PLLC is a limited liability company whose members all hold an active professional license in the same or a related profession, formed in a state that recognizes the PLLC entity type. A regular LLC has no member-license requirement and can be formed by any adult who meets the state's filing requirements. The mechanics, including pass-through taxation and the operating agreement, are similar. What changes is who can be a member and what the state licensing board requires before the formation document is approved.

Which states require a PLLC instead of a regular LLC?

States that require a PLLC for listed professions include New York, Texas, North Carolina, and Washington, among others. States that allow a choice between a PLLC and a regular LLC include Florida, Massachusetts, and Illinois, among others. California, Delaware, and Oregon do not have a PLLC entity type at all. California also bars LLC formation for licensed services entirely under Corporations Code Section 17701.04. Confirm the current rule with the specific state licensing board, because the rule varies by profession within each state.

Can a doctor or a lawyer form a regular LLC in California?

Generally, no. California Corporations Code Section 17701.04, subdivision (e), bars limited liability companies from rendering professional services in the state. Physicians, dentists, lawyers, CPAs, architects, engineers, marriage and family therapists, licensed clinical social workers, and veterinarians among others typically cannot use a California LLC for the licensed service. The alternatives are a California Professional Corporation and, for certain professions including lawyers, accountants, architects, and engineers, a Limited Liability Partnership.

What happens if I form an LLC and the state licensing board only accepts a PLLC?

The formation document at the Secretary of State can be approved while the licensing board separately rejects the entity at the firm registration stage. The typical path is to re-form as a PLLC, file the new formation document, obtain a new EIN for the new entity, open a new bank account, and notify the licensing board of the entity change. The original LLC is then dissolved or kept as a non-operating shell, depending on whether the original LLC had any other lawful business activity. Re-forming adds weeks to the timeline and changes the entity's records across the bank, the IRS, and the board at the same time.

PLLC vs LLC for Licensed Professionals: Address Rules

Q: Does my state licensing board accept a virtual business address for a PLLC?

It depends on the specific board and the specific address. State licensing boards typically reject PO box addresses for the principal office slot, and some reject commercial mail receiving agency addresses where the board's rule requires a physical practice location. A real US business address at a commercial location, with the firm's name on the building register and mail accepted at the address during business hours, more often satisfies the board's pattern. The board has the final word, and confirming the specific address with the board before submitting the firm registration is the safer path.

Key takeaways

PLLC stands for professional limited liability company. Some states require it for licensed professionals, others allow a choice between a PLLC and an LLC, and California, Delaware, and Oregon do not have a PLLC entity type at all. The state where the practice operates generally determines the choice.
Most state licensing boards require a real US business address before the formation document is approved. PO boxes are typically rejected for the principal office and the registered agent slot, and the address listed on the board's record is the one that appears on the public license register.
California Corporations Code Section 17701.04 bars limited liability companies from rendering professional services in the state. Most California licensed professionals form a Professional Corporation or, where the law permits, a Limited Liability Partnership instead.
save office provides a real US business address in seven cities that can serve as the principal office and the business mailing address for a PLLC or a Professional Corporation. The Address Checker tool runs USPS Delivery Point Validation before the address is submitted to a licensing board.

Before you start

Confirm whether the state of practice has a PLLC entity type, requires a Professional Corporation instead, or bars LLC formation for the profession. The state where the license is issued, not where the founder lives, generally determines the rule.
Pull the state licensing board's address requirements for the principal office and the registered agent before drafting the formation document. Boards typically reject PO box addresses, and some reject commercial mail receiving agency addresses for the principal office slot.
This guide is general. Entity selection for a licensed practice depends on facts that a state board attorney and a CPA are paid to read. Confirm the structure with the state board and with counsel before forming any entity.

Who this is for

Licensed professionals, including doctors, dentists, lawyers, CPAs, architects, engineers, and therapists, who are deciding between a PLLC and a regular LLC for their practice.
Practitioners forming an entity in California, Delaware, or Oregon, where PLLCs do not exist, who need to understand the Professional Corporation alternative.
Founders building a multi-state practice where one entity rule applies in the home state of practice and a different rule applies in another state the practice expands into.

A PLLC, or professional limited liability company, is the entity type some states require for licensed professionals who want LLC-style liability protection. Other states allow a PLLC or a regular LLC. California, Delaware, and Oregon do not have a PLLC at all, and California bars LLC formation for licensed services.

What a PLLC actually is and how it differs from a regular LLC

A PLLC is a limited liability company whose members all hold an active professional license in the same or a related profession, formed in a state that recognizes the PLLC entity type. The mechanics resemble a regular LLC, including pass-through taxation by default, an operating agreement governing the members' relationships, and an annual report obligation to the state. What changes is who can be a member, what services the entity can offer, and what the state licensing board requires before the formation document is approved.

A regular LLC, by contrast, has no member-license requirement, can be formed by any adult who meets the state's filing requirements, and can offer any lawful business service the operating agreement permits. The line between a regular LLC and a PLLC sits at the licensing question. If the profession requires a state-issued license to practice, the state where the practice operates usually decides whether a PLLC, a Professional Corporation, an LLP, or a regular LLC is the eligible entity type.

A PLLC does not shield the licensed professional from personal liability for the professional's own malpractice. What it does is keep the professional's personal assets separate from the entity's general business liabilities, the way an ordinary LLC does. Malpractice claims against the licensed professional individually proceed against the professional and the professional's malpractice insurance, not against the entity alone. The general business liabilities of the entity, including landlord disputes, vendor claims, and employment matters not involving the professional's license, remain inside the entity to the extent the operating-formality record supports the separation.

Where state law requires a PLLC, allows a choice, or has no PLLC at all

State rules for licensed professionals fall into four general groupings. The first group requires a PLLC for the listed professions and does not allow a regular LLC. The second group allows either a PLLC or a regular LLC, depending on the profession and the state licensing board's interpretation. The third group does not have a PLLC entity type, and licensed professionals form a Professional Corporation or, in some cases, an LLP. The fourth group bars LLC formation for licensed services entirely, requiring a Professional Corporation or LLP. California sits in the fourth group.

The grouping matters because forming the wrong entity in the wrong state means re-forming, and re-forming usually involves a new EIN, a new bank account, a new state filing, and a board notification of the change. A founder forming what looks like a regular LLC for a licensed practice in a state that requires a PLLC can have the formation document rejected at the Secretary of State, or, if the document goes through, can be cited by the state licensing board at the next license renewal.

State grouping	Entity options for licensed professionals	Examples of states in this grouping	What changes for the founder
Requires a PLLC	PLLC required for the listed professions	New York, Texas, North Carolina, Washington, others	Formation document filed as a PLLC, not a regular LLC, with the board's license number attached
Allows a choice	PLLC or regular LLC, depending on the profession	Florida, Massachusetts, Illinois, others	Founder selects PLLC or LLC based on board guidance and the operating agreement language
No PLLC entity type	Professional Corporation or, where allowed, an LLP	California, Delaware, Oregon	PLLC is not a separate entity type. In Delaware and Oregon a licensed professional generally forms a regular LLC for the practice. California is treated separately in the row below because the state bars LLC formation for licensed services
LLC barred for licensed services	Professional Corporation or LLP only, LLC formation prohibited	California for most licensed services under Corporations Code Section 17701.04	Forming an LLC for the practice is not permitted, and the founder selects a Professional Corporation or LLP

State groupings vary by profession within each state and change periodically. Confirm the current rule with the state licensing board and with counsel before forming any entity. The list of example states is illustrative, not exhaustive.

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California's special rule: LLC barred for licensed services

California Corporations Code Section 17701.04, subdivision (e), reads in part that nothing in the title shall be construed to permit a domestic or foreign limited liability company to render professional services, as defined in subdivision (a) of Section 13401 and in Section 13401.3. The practical effect is that a California licensed professional, including a physician, a dentist, a lawyer, a CPA, an architect, an engineer, a marriage and family therapist, a licensed clinical social worker, and a veterinarian among others, generally cannot use a California LLC to provide the licensed service.

The alternative structures in California are the Professional Corporation, governed by Corporations Code Sections 13400 and following, and, for certain professions, the Limited Liability Partnership. The Professional Corporation is a corporation whose shares can be held only by licensed members of the same profession, with a name that ends in a profession-specific designator. An LLP is available in California for lawyers, public accountants, engineers, land surveyors, and architects, with the architect-LLP authority currently scheduled to sunset at the end of 2033 unless the legislature extends it.

The same logic applies to a foreign LLC. A licensed professional cannot form an LLC in another state, for example Delaware, and then register that LLC as a foreign LLC in California to provide the licensed service. The bar applies to both domestic and foreign LLCs rendering professional services in California. A licensed professional running a multi-state practice typically forms a California Professional Corporation for the California portion of the practice and a separate entity, often a PLLC or a Professional Corporation depending on the state's rule, for each other state of practice.

Six licensed professions and what each board generally asks for the address

The address requirements vary by profession and by state, but the pattern across boards is consistent enough to map. Six commonly licensed professions, with the general pattern of what each board asks for the address slot on the license record and on the entity formation document, follow. The board's specific address rules supersede any general pattern, and the state's specific rules supersede the profession's general pattern.

Physicians and surgeons: state medical boards typically require a physical street address for the practice location, not a PO box, and many boards require notification when the practice location changes. The address on the medical license record is the address the board uses for correspondence and the address that appears on the public license register.
Dentists: state dental boards typically require a physical street address for each practice location, with separate licensure requirements for satellite offices. The dental board's record carries the practice location and a separate mailing address in some states.
Attorneys: state bar associations typically require a registered office address for the law practice, with rules on solo practitioner addresses, virtual law office addresses, and the address that appears on bar correspondence. Some states allow a virtual office address for the bar record if the address satisfies the board's physical-presence requirement, and others require an in-state street address.
Certified public accountants: state boards of accountancy typically require a physical office address for the firm registration, and the address on the firm permit record is the address the board uses for correspondence and for peer review notifications. PO boxes are typically not accepted for the firm address.
Architects and engineers: state boards of architecture and engineering typically require a physical street address for the firm registration, and the certificate of authorization carries the firm's address. Some states require a designated in-state professional in responsible charge, with an address tied to the firm's principal office.
Marriage and family therapists, licensed clinical social workers, and licensed professional counselors: state boards typically require a physical practice address for the license record, with separate confidentiality rules for client records and for the practice address that appears on the public register. PO boxes are typically not accepted for the practice address.

Confirm with the state board

Each state's licensing board sets its own address requirements, and the requirements change. Confirm the current rule with the specific board before submitting the formation document, the firm registration, or the license application. The pattern above is illustrative.

Three address slots for a PLLC, repeated by state

A PLLC has the same three address slots that any LLC has, repeated by state when the practice operates in more than one state. The three slots are the registered agent address, the principal office address on the Secretary of State filing, and the business mailing address the bank, the IRS, and the licensing board use. A multi-state practice repeats the three slots for each state of practice, with a foreign qualification address in each state where the PLLC operates outside the formation state.

1Registered agent: each state of practice requires a registered agent at a physical street address in that state, available during business hours to receive service of process and official state correspondence. The registered agent's address is publicly listed and is not the same as the practice address.
2Principal office on the Secretary of State filing: the address that appears on the formation document and the annual report. This address is typically the one the state licensing board pulls when verifying the entity's records, and it is the address that appears on the public Secretary of State record.
3Business mailing address: the address the bank, the IRS, vendors, patients or clients, and the state licensing board send mail to. The mailing address is typically separate from the registered agent's address and may be the same as the principal office address depending on the state.

The three business addresses every LLC needs guide covers the three slots in detail for any LLC, and the same logic applies to a PLLC with the added layer of the licensing board's address record.

When a state licensing board rejects the address

Address rejection at the board level is one of the more common delays for a licensed practice forming an entity. The Secretary of State's office and the state licensing board are separate offices with separate address rules. The formation document can be approved by the Secretary of State while the licensing board still rejects the same address on the firm registration form, the license renewal, or the certificate of authorization.

When a board rejects the address, the typical path is to substitute an address that meets the board's specific rule, refile the affected board form, and update the entity's principal office or mailing address on the Secretary of State record if the board's address is the one the state filing references. The cycle can add weeks to the timeline if the address change has to propagate through the bank's KYC review, the IRS Form 8822-B for the federal address change, and the state licensing board's record at the same time.

Addresses commonly rejected by state licensing boards include PO boxes for the principal office slot, commercial mail receiving agency addresses where the board's rule requires a physical practice location, and residential addresses where the board requires a separate business address from the licensee's home. The accepted-address pattern across boards favors a real US business address at a commercial location, with the firm's name on the building register and mail accepted at the address during business hours.

How save office fits a PLLC structure

To be specific about the scope, save office is not a registered agent service, does not accept legal service of process, and is not a substitute for a state licensing board's address review. The PLLC must maintain a properly designated registered agent in each state of practice, and the licensing board has the final word on whether a given address satisfies the board's rule. Within those limits, save office fills the business mailing address slot and, where the board permits, the principal office slot for a PLLC or a Professional Corporation.

save office provides a real US business address in seven cities, Wilmington Delaware, Los Angeles, San Francisco, New York City, Tampa Florida, Washington DC, and Cheyenne Wyoming. A California Professional Corporation can anchor its mailing address in Los Angeles or San Francisco. A New York PLLC can anchor its address in New York City. A Florida PLLC can anchor its address in Tampa. A Delaware-formed parent entity for a multi-state practice can anchor in Wilmington, while each state-of-practice entity anchors in the operating state. Multi-city switching moves any one entity's mailing address to another city without affecting the others, which matters for a practice that opens a satellite office in a new state.

Because the state licensing board often verifies the address before approving the firm registration, the Address Checker tool runs USPS Delivery Point Validation and a commercial-deliverability check before the address is submitted to the board. The get-started flow activates each address within 24 hours, which matters when the formation document is filed and the board's address review starts the same week. Pricing across the seven cities is on the pricing page.

Not legal or licensing advice

This article is for general informational purposes only and does not constitute legal, tax, or licensing advice. Entity selection, board approval, and the specific address rule for each profession in each state depend on facts that a state board attorney and counsel are paid to read. Confirm the entity and the address with the state licensing board and with a licensed attorney before forming the entity.

Common mistakes founders make with a PLLC

Filing a regular LLC in a state that requires a PLLC: the formation document can be rejected at the Secretary of State, or, if it goes through, the state licensing board can cite the entity at the next license renewal. Re-forming as a PLLC typically requires a new EIN, a new bank account, and a notification to the board.
Forming an LLC in California for a licensed practice: California Corporations Code Section 17701.04 bars LLCs from rendering professional services in the state. Forming a California LLC for medicine, dentistry, law, accounting, architecture, engineering, or therapy, among other professions, is not permitted, and a foreign LLC from another state cannot register in California to render the licensed service either.
Using a PO box as the principal office on the Secretary of State filing: state licensing boards typically reject PO box addresses for the principal office slot, and even where the Secretary of State accepts the filing, the board can reject the same address on the firm registration form.
Listing the same address for the registered agent and the principal office without confirming both serve the role: the registered agent's address is for service of process and must be in the state of formation. The principal office is the address the board verifies. The two can be the same in some states and must be different in others.
Skipping the foreign qualification step when expanding to a second state of practice: a PLLC formed in one state and operating in another state typically must register as a foreign LLC in the second state and meet the second state's licensing board rules. A multi-state practice that misses this step can have the second state's board treat the entity as operating without a registration.
Sharing the practice address with an unrelated business that uses the same building: state licensing boards can ask for proof that the listed address is the practice's address, and shared signage or shared mail at one address can complicate the board's verification step.