Cal. Corporations Code - CORP § 13400. Section 13400.
This part shall be known and may be cited as the “Moscone-Knox Professional Corporation Act.”
PART 4. PROFESSIONAL CORPORATIONS [13400. - 13410.]
Cal. Corporations Code - CORP 4.
in effectCal. Corporations Code - CORP § 13401. Section 13401.
As used in this part:
(a)
“Professional services” means any type of professional services that may be lawfully rendered only pursuant to a license, certification, or registration authorized by the Business and Professions Code, the Chiropractic Act, or the Osteopathic Act.
(b)
“Professional corporation” means a corporation organized under the General Corporation Law or pursuant to subdivision (b) of Section 13406 that is engaged in rendering professional services in a single profession, except as otherwise authorized in Section 13401.5, pursuant to a certificate of registration issued by the governmental agency regulating the profession as herein provided and that in its practice or business designates itself as a
professional or other corporation as may be required by statute. However, any professional corporation or foreign professional corporation rendering professional services by persons duly licensed by the Medical Board of California or any examining committee under the jurisdiction of the board, the Podiatric Medical Board of California, the Osteopathic Medical Board of California, the Dental Board of California, the Dental Hygiene Board of California, the California State Board of Pharmacy, the Veterinary Medical Board, the California Architects Board, the Court Reporters Board of California, the Board of Behavioral Sciences, the Speech-Language Pathology and Audiology and Hearing Aid Dispensers Board, the Board of Registered Nursing, the State Board of Optometry, or the California Board of Occupational Therapy shall not be required to obtain a certificate of registration in order to render those professional services.
(c)
“Foreign professional
corporation” means a corporation organized under the laws of a state of the United States other than this state that is engaged in a profession of a type for which there is authorization in the Business and Professions Code for the performance of professional services by a foreign professional corporation.
(d)
“Licensed person” means any natural person who is duly licensed under the provisions of the Business and Professions Code, the Chiropractic Act, or the Osteopathic Act to render the same professional services as are or will be rendered by the professional corporation or foreign professional corporation of which the person is, or intends to become, an officer, director, shareholder, or employee.
(e)
“Disqualified person” means a licensed person who for any reason becomes legally disqualified (temporarily or permanently) to render the professional services that the particular
professional corporation or foreign professional corporation of which they are an officer, director, shareholder, or employee is or was rendering.
Cal. Corporations Code - CORP § 13401.3. Section 13401.3.
As used in this part, “professional services” also means any type of professional services that may be lawfully rendered only pursuant to a license, certification, or registration authorized by the Yacht and Ship Brokers Act (Article 2 (commencing with Section 700) of Chapter 5 of Division 3 of the Harbors and Navigation Code).
Cal. Corporations Code - CORP § 13401.5. Section 13401.5.
Notwithstanding subdivision (d) of Section 13401 and any other provision of law, the following licensed persons may be shareholders, officers, directors, or professional employees of the professional corporations designated in this section so long as the sum of all shares owned by those licensed persons does not exceed 49 percent of the total number of shares of the professional corporation so designated herein, and so long as the number of those licensed persons owning shares in the professional corporation so designated herein does not exceed the number of persons licensed by the governmental agency regulating the designated professional corporation. This section does not limit employment by a professional corporation designated in this section to only those
licensed professionals listed under each subdivision. Any person duly licensed under Division 2 (commencing with Section 500) of the Business and Professions Code, the Chiropractic Act, or the Osteopathic Act may be employed to render professional services by a professional corporation designated in this section.
(a)
Medical corporation.
(1)
Licensed doctors of podiatric medicine.
(2)
Licensed psychologists.
(3)
Registered nurses.
(4)
Licensed optometrists.
(5)
Licensed marriage and family therapists.
(6)
Licensed clinical social workers.
(7)
Licensed physician assistants.
(8)
Licensed chiropractors.
(9)
Licensed acupuncturists.
(10)
Naturopathic doctors.
(11)
Licensed professional clinical counselors.
(12)
Licensed physical therapists.
(13)
Licensed pharmacists.
(14)
Licensed midwives.
(15)
Licensed occupational therapists.
(b)
Podiatric medical corporation.
(1)
Licensed physicians and surgeons.
(2)
Licensed psychologists.
(3)
Registered nurses.
(4)
Licensed optometrists.
(5)
Licensed chiropractors.
(6)
Licensed acupuncturists.
(7)
Naturopathic doctors.
(8)
Licensed physical therapists.
(c)
Psychological corporation.
(1)
Licensed physicians and surgeons.
(2)
Licensed doctors of podiatric medicine.
(3)
Registered nurses.
(4)
Licensed optometrists.
(5)
Licensed marriage and family therapists.
(6)
Licensed clinical social workers.
(7)
Licensed chiropractors.
(8)
Licensed acupuncturists.
(9)
Naturopathic doctors.
(10)
Licensed professional clinical counselors.
(11)
Licensed midwives.
(d)
Speech-language pathology corporation.
(1)
Licensed audiologists.
(e)
Audiology corporation.
(1)
Licensed speech-language pathologists.
(f)
Nursing corporation.
(1)
Licensed physicians and surgeons.
(2)
Licensed doctors of podiatric medicine.
(3)
Licensed psychologists.
(4)
Licensed optometrists.
(5)
Licensed marriage and family therapists.
(6)
Licensed clinical social workers.
(7)
Licensed physician assistants.
(8)
Licensed chiropractors.
(9)
Licensed acupuncturists.
(10)
Naturopathic doctors.
(11)
Licensed professional clinical counselors.
(12)
Licensed midwives.
(g)
Marriage and family therapist corporation.
(1)
Licensed physicians and surgeons.
(2)
Licensed psychologists.
(3)
Licensed clinical social workers.
(4)
Registered nurses.
(5)
Licensed chiropractors.
(6)
Licensed acupuncturists.
(7)
Naturopathic doctors.
(8)
Licensed professional clinical counselors.
(9)
Licensed midwives.
(h)
Licensed clinical social worker corporation.
(1)
Licensed physicians and surgeons.
(2)
Licensed psychologists.
(3)
Licensed marriage and family therapists.
(4)
Registered nurses.
(5)
Licensed chiropractors.
(6)
Licensed acupuncturists.
(7)
Naturopathic doctors.
(8)
Licensed professional clinical counselors.
(i)
Physician assistants corporation.
(1)
Licensed physicians and surgeons.
(2)
Registered nurses.
(3)
Licensed acupuncturists.
(4)
Naturopathic doctors.
(5)
Licensed midwives.
(j)
Optometric corporation.
(1)
Licensed physicians and surgeons.
(2)
Licensed doctors of podiatric medicine.
(3)
Licensed psychologists.
(4)
Registered nurses.
(5)
Licensed chiropractors.
(6)
Licensed acupuncturists.
(7)
Naturopathic doctors.
(k)
Chiropractic corporation.
(1)
Licensed physicians and surgeons.
(2)
Licensed doctors of podiatric medicine.
(3)
Licensed psychologists.
(4)
Registered nurses.
(5)
Licensed optometrists.
(6)
Licensed marriage and family therapists.
(7)
Licensed clinical social workers.
(8)
Licensed acupuncturists.
(9)
Naturopathic doctors.
(10)
Licensed professional clinical counselors.
(11)
Licensed midwives.
(
l
)
Acupuncture corporation.
(1)
Licensed physicians and surgeons.
(2)
Licensed doctors of podiatric
medicine.
(3)
Licensed psychologists.
(4)
Registered nurses.
(5)
Licensed optometrists.
(6)
Licensed marriage and family therapists.
(7)
Licensed clinical social workers.
(8)
Licensed physician assistants.
(9)
Licensed chiropractors.
(10)
Naturopathic doctors.
(11)
Licensed professional clinical counselors.
(12)
Licensed midwives.
(m)
Naturopathic doctor corporation.
(1)
Licensed physicians and surgeons.
(2)
Licensed psychologists.
(3)
Registered nurses.
(4)
Licensed physician assistants.
(5)
Licensed chiropractors.
(6)
Licensed acupuncturists.
(7)
Licensed physical therapists.
(8)
Licensed doctors of podiatric medicine.
(9)
Licensed marriage and family therapists.
(10)
Licensed clinical social workers.
(11)
Licensed optometrists.
(12)
Licensed professional clinical counselors.
(13)
Licensed midwives.
(n)
Dental corporation.
(1)
Licensed physicians and surgeons.
(2)
Dental assistants.
(3)
Registered dental assistants.
(4)
Registered dental assistants in extended functions.
(5)
Registered dental hygienists.
(6)
Registered dental hygienists in extended functions.
(7)
Registered dental hygienists in alternative practice.
(o)
Professional clinical counselor corporation.
(1)
Licensed physicians and surgeons.
(2)
Licensed psychologists.
(3)
Licensed clinical social workers.
(4)
Licensed marriage and family therapists.
(5)
Registered nurses.
(6)
Licensed chiropractors.
(7)
Licensed acupuncturists.
(8)
Naturopathic doctors.
(9)
Licensed midwives.
(p)
Physical therapy corporation.
(1)
Licensed physicians and surgeons.
(2)
Licensed doctors of podiatric medicine.
(3)
Licensed acupuncturists.
(4)
Naturopathic doctors.
(5)
Licensed occupational therapists.
(6)
Licensed speech-language therapists.
(7)
Licensed audiologists.
(8)
Registered nurses.
(9)
Licensed psychologists.
(10)
Licensed physician assistants.
(11)
Licensed midwives.
(q)
Registered dental hygienist in alternative practice corporation.
(1)
Registered dental assistants.
(2)
Licensed dentists.
(3)
Registered dental hygienists.
(4)
Registered dental hygienists in extended functions.
(r)
Licensed midwifery corporation.
(1)
Licensed physicians and surgeons.
(2)
Licensed psychologists.
(3)
Registered nurses.
(4)
Licensed marriage and family therapists.
(5)
Licensed clinical social workers.
(6)
Licensed physician assistants.
(7)
Licensed chiropractors.
(8)
Licensed acupuncturists.
(9)
Licensed naturopathic doctors.
(10)
Licensed professional clinical counselors.
(11)
Licensed physical therapists.
(s)
Occupational therapy corporation.
(1)
Licensed physicians and surgeons.
(2)
Licensed doctors of podiatric medicine.
(3)
Licensed
acupuncturists.
(4)
Naturopathic doctors.
(5)
Licensed physical therapists.
(6)
Licensed speech-language therapists.
(7)
Licensed audiologists.
(8)
Registered nurses.
(9)
Licensed psychologists.
(10)
Licensed physician assistants.
(11)
Licensed midwives.
(12)
Licensed clinical social workers.
(13)
Licensed marriage and family therapists.
(14)
Licensed occupational therapy assistants.
Cal. Corporations Code - CORP § 13402. Section 13402.
(a)
This part shall not apply to any corporation now in existence or hereafter organized which may lawfully render professional services other than pursuant to this part, nor shall anything herein contained alter or affect any right or privilege, whether under any existing or future provision of the Business and Professions Code or otherwise, in terms permitting or not prohibiting performance of professional services through the use of any form of corporation permitted by the General Corporation Law.
(b)
The conduct of a business in this state by a corporation pursuant to a license or registration issued under any state law, except laws relating to taxation, shall not be considered to be the conduct of a business as a professional corporation if the business is conducted by, and the license or registration is issued to, a corporation which is not a professional corporation within the meaning of this part, whether or not a professional corporation could conduct the same business, or portions of the same business, as a professional corporation.
Cal. Corporations Code - CORP § 13403. Section 13403.
The provisions of the General Corporation Law shall apply to professional corporations, except where such provisions are in conflict with or inconsistent with the provisions of this part. A professional corporation which has only one shareholder need have only one director who shall be such shareholder and who shall also serve as the president and treasurer of the corporation. The other officers of the corporation in such situation need not be licensed persons. A professional corporation which has only two shareholders need have only two directors who shall be such shareholders. The two shareholders between them shall fill the offices of president, vice president, secretary and treasurer.
A professional medical corporation may establish in its articles or bylaws the manner in which its directors are selected and removed, their powers, duties, and compensation. Each term of office may not exceed three years. Notwithstanding the foregoing, the articles or bylaws of a professional medical corporation with more than 200 shareholders may provide that directors who are officers of the corporation or who are responsible for the management of all medical services at one or more medical centers may have terms of office, as directors, of up to six years; however, no more than 50 percent of the members of the board, plus one additional member of the board, may have six-year terms of office.
Cal. Corporations Code - CORP § 13404. Section 13404.
A corporation may be formed under the General Corporation Law or pursuant to subdivision (b) of Section 13406 for the purposes of qualifying as a professional corporation in the manner provided in this part and rendering professional services. The articles of incorporation of a professional corporation shall contain a specific statement that the corporation is a professional corporation within the meaning of this part. Except as provided in subdivision (b) of Section 13401, no professional corporation shall render professional services in this state without a currently effective certificate of registration issued by the governmental agency regulating the profession in which such corporation is or proposes to be engaged, pursuant to the applicable provisions of the Business and Professions Code or the Chiropractic Act expressly authorizing such professional services to be rendered by a professional corporation.
Cal. Corporations Code - CORP § 13404.5. Section 13404.5.
(a)
A foreign professional corporation may qualify as a foreign corporation to transact intrastate business in this state in accordance with Chapter 21 (commencing with Section 2100) of Division 1. A foreign professional corporation shall be subject to the provisions of the General Corporation Law applicable to foreign corporations, except where those provisions are in conflict with or inconsistent with the provisions of this part. The statement and designation filed by the foreign professional corporation pursuant to Section 2105 shall contain a specific statement that the corporation is a foreign professional corporation within the meaning of this part.
(b)
No foreign professional corporation shall render professional services in this state without a currently effective certificate of registration issued by the governmental agency regulating the profession in which that corporation proposes to be engaged, pursuant to the applicable provisions of the Business and Professions Code expressly authorizing those professional services to be rendered by a foreign professional corporation.
(c)
If the California board, commission, or other agency that prescribes the rules or regulations governing a particular profession either now or hereafter requires that the shareholders of the professional corporation bear any degree of personal liability for the acts of the corporation, either by personal guarantee or in some other form that the governing agency prescribes, the shareholders of a foreign corporation that has been qualified to do business in this state in the same profession shall, as a condition of doing business in this state, be subject, with regard to the rendering of professional services by the professional corporation in California, or for California residents, to the same degree of personal liability, if any, as is prescribed by the governing agency for shareholders of a California professional corporation rendering services in the same profession.
(d)
Each application by a foreign professional corporation to qualify to do business in this state shall contain the following statement:
“The shareholders of the undersigned foreign professional corporation shall be subject, with regard to the rendering of professional services by the professional corporation in California, or for California residents, to the same degree of personal liability, if any, in California as is from time to time prescribed by the agency governing the profession in this state for shareholders in a California professional corporation rendering services in the same profession. This application accordingly constitutes a submission to the jurisdiction of the courts of California to the same extent, but only to the same extent, as applies to the shareholders of a California professional corporation in the same profession. The foregoing submission to jurisdiction is a condition of qualification to do business in this state.”
Cal. Corporations Code - CORP § 13405. Section 13405.
(a)
Subject to the provisions of Section 13404, a professional corporation may lawfully render professional services in this state, but only through employees who are licensed persons. The corporation may employ persons not so licensed, but such persons shall not render any professional services rendered or to be rendered by that corporation in this state. A professional corporation may render professional services outside of this state, but only through employees who are licensed to render the same professional services in the jurisdiction or jurisdictions in which the person practices. Nothing in this section is intended to prohibit the rendition of occasional professional services in another jurisdiction as an incident to the licensee’s primary practice, so long as it is permitted by the governing agency that regulates the particular profession in the jurisdiction. Nothing in this section is intended to prohibit the rendition of occasional professional services in this state as an incident to a professional employee’s primary practice for a foreign professional corporation qualified to render professional services in this state, so long as it is permitted by the governing agency that regulates the particular profession in this state.
(b)
Subject to Section 13404.5, a foreign professional corporation qualified to render professional services in this state may lawfully render professional services in this state, but only through employees who are licensed persons, and shall render professional services outside of this state only through persons who are licensed to render the same professional services in the jurisdiction or jurisdictions in which the person practices. The foreign professional corporation may employ persons in this state who are not licensed in this state, but those persons shall not render any professional services rendered or to be rendered by the corporation in this state.
(c)
Nothing in this section or in this part is intended to, or shall, augment, diminish or otherwise alter existing provisions of law, statutes or court rules relating to services by a California attorney in another jurisdiction, or services by an out-of-state attorney in California. These existing provisions, including, but not limited to, admission pro hac vice and the taking of depositions in a jurisdiction other than the one in which the deposing attorney is admitted to practice, shall remain in full force and effect.
Cal. Corporations Code - CORP § 13406. Section 13406.
(a)
Subject to the provisions of subdivision (b), shares of capital stock in a professional corporation may be issued only to a licensed person or to a person who is licensed to render the same professional services in the jurisdiction or jurisdictions in which the person practices, and any shares issued in violation of this restriction shall be void. Unless there is a public offering of securities by a professional corporation or by a foreign professional corporation in this state, its financial statements shall be treated by the Commissioner of Financial Protection and Innovation as confidential, except to the extent that such statements shall be subject to subpoena in connection with any judicial or administrative proceeding, and may be admissible in evidence therein. A shareholder of a professional corporation or of a foreign
professional corporation qualified to render professional services in this state shall not enter into a voting trust, proxy, or any other arrangement vesting another person (other than another person who is a shareholder of the same corporation) with the authority to exercise the voting power of any or all of the shareholder’s shares, and any purported voting trust, proxy, or other arrangement shall be void.
(b)
A professional law corporation may be incorporated as a nonprofit public benefit corporation under the Nonprofit Public Benefit Corporation Law under either of the following circumstances:
(1)
The corporation is a qualified legal services project or a qualified support center within the meaning of subdivisions (a) and (b) of Section 6213 of the Business and Professions Code.
(2)
The professional law
corporation otherwise meets all of the requirements and complies with all of the provisions of the Nonprofit Public Benefit Corporation Law, as well as all of the following requirements:
(A)
All of the members of the corporation, if it is a membership organization as described in the Nonprofit Corporation Law, are persons licensed to practice law in California.
(B)
All of the members of the professional law corporation’s board of directors are persons licensed to practice law in California.
(C)
Seventy percent of the clients to whom the corporation provides legal services are lower income persons as defined in Section 50079.5 of the Health and Safety Code, and to other persons who would not otherwise have access to legal services.
(D)
The corporation
shall not enter into contingency fee contracts with clients.
(c)
A professional law corporation incorporated as a nonprofit public benefit corporation that is a recipient in good standing as defined in subdivision (c) of Section 6213 of the Business and Professions Code shall be deemed to have satisfied all of the filing requirements of a professional law corporation under Sections 6161.1, 6162, and 6163 of the Business and Professions Code.
Cal. Corporations Code - CORP § 13407. Section 13407.
Shares in a professional corporation or a foreign professional corporation qualified to render professional services in this state may be transferred only to a licensed person, to a shareholder of the same corporation, to a person licensed to practice the same profession in the jurisdiction or jurisdictions in which the person practices, or to a professional corporation, and any transfer in violation of this restriction shall be void, except as provided herein.
A professional corporation may purchase its own shares without regard to any restrictions provided by law upon the repurchase of shares, if at least one share remains issued and outstanding.
If a professional corporation or a foreign professional corporation qualified to render professional services in this state shall fail to acquire all of the shares of a shareholder who is disqualified from rendering professional services in this state or of a deceased shareholder who was, on his or her date of death, licensed to render professional services in this state, or if such a disqualified shareholder or the representative of such a deceased shareholder shall fail to transfer said shares to the corporation, to another shareholder of the corporation, to a person licensed to practice the same profession in the jurisdiction or jurisdictions in which the person practices, or to a licensed person, within 90 days following the date of disqualification, or within six months following the date of death of the shareholder, as the case may be, then the certificate of registration of the corporation may be suspended or revoked by the governmental agency regulating the profession in which the corporation is engaged. In the event of such a suspension or revocation, the corporation shall cease to render professional services in this state.
Notwithstanding any provision in this part, upon the death or incapacity of a dentist, any individual named in subdivision (a) of Section 1625.3 of the Business and Professions Code may employ licensed dentists and dental assistants and charge for their professional services for a period not to exceed 12 months from the date of death or incapacity of the dentist. The employment of licensed dentists and dental assistants shall not be deemed the practice of dentistry within the meaning of Section 1625 of the Business and Professions Code, provided that all of the requirements of Section 1625.4 of the Business and Professions Code are met. If an individual listed in Section 1625.3 of the Business and Professions Code is employing licensed persons and dental assistants, then the shares of a deceased or incapacitated dentist shall be transferred as provided in this section no later than 12 months from the date of death or incapacity of the dentist.
Cal. Corporations Code - CORP § 13408. Section 13408.
The following shall be grounds for the suspension or revocation of the certificate of registration of a professional corporation or a foreign professional corporation qualified to render professional services in this state: (a) if all shareholders who are licensed persons of such corporation shall at any one time become disqualified persons, or (b) if the sole shareholder shall become a disqualified person, or (c) if such corporation shall knowingly employ or retain in its employment a disqualified person, or (d) if such corporation shall violate any applicable rule or regulation adopted by the governmental agency regulating the profession in which such corporation is engaged, or (e) if such corporation shall violate any statute applicable to a professional corporation or to a foreign professional corporation, or (f) any ground for such suspension or revocation specified in the Business and Professions Code relating to the profession in which such corporation is engaged. In the event of such suspension or revocation of its certificate of registration such corporation shall cease forthwith to render professional services in this state.
Cal. Corporations Code - CORP § 13408.5. Section 13408.5.
A professional corporation shall not be formed so as to cause any violation of law, or any applicable rules and regulations, relating to fee splitting, kickbacks, or other similar practices by physicians and surgeons or psychologists, including, but not limited to, Section 650 or subdivision (e) of Section 2960 of the Business and Professions Code. A violation of any such provisions shall be grounds for the suspension or revocation of the certificate of registration of the professional corporation. The Commissioner of Financial Protection and Innovation or the Director of the Department of Managed Health Care may refer any suspected violation of those provisions to the governmental agency regulating the profession in which the corporation is, or proposes to be engaged.
Cal. Corporations Code - CORP § 13409. Section 13409.
(a)
Subject to Section 201, a professional corporation may adopt any name permitted by a law expressly applicable to the profession in which the corporation is engaged or by a rule or regulation of the governmental agency regulating that profession. The Secretary of State may require proof by affidavit or otherwise establishing that the name of the professional corporation complies with the requirements of this section and of the law governing the profession in which that professional corporation is engaged. The statements of fact in those affidavits may be accepted by the Secretary of State as sufficient proof of the facts.
(b)
Subject to Section
201, a foreign professional corporation qualified to render professional services in this state may transact intrastate business in this state by any name permitted by a law expressly applicable to the profession in which the corporation is engaged, or by a rule or regulation of the governmental agency regulating the rendering of professional services in this state by the corporation. The Secretary of State may require proof by affidavit or otherwise establishing that the name of the foreign professional corporation qualified to render professional services in this state complies with the requirements of this section and of the law governing the profession in which the foreign professional corporation qualified to render professional services in this state proposes to engage in this state. The statements of fact in those affidavits may be accepted by the Secretary of State as sufficient proof of
the facts.
Cal. Corporations Code - CORP § 13410. Section 13410.
(a)
A professional corporation or a foreign professional corporation qualified to render professional services in this state shall be subject to the applicable rules and regulations adopted by, and all the disciplinary provisions of the Business and Professions Code expressly governing the practice of the profession in this state, and to the powers of, the governmental agency regulating the profession in which such corporation is engaged. Nothing in this part shall affect or impair the disciplinary powers of any such governmental agency over licensed persons or any law, rule or regulation pertaining to the standards for professional conduct of licensed persons or to the professional relationship between any licensed person furnishing professional services and the person receiving such services.
(b)
With respect to any foreign professional corporation qualified to render professional services in this state, each such governmental agency shall adopt rules, regulations, and orders as appropriate to restrict or prohibit any disqualified person from doing any of the following:
(1)
Being a shareholder, director, officer, or employee of the corporation.
(2)
Rendering services in any profession in which he or she is a disqualified person.
(3)
Participating in the management of the corporation.
(4)
Sharing in the income of the corporation.
Source: CA Legislative Counsel Bulk DataURL: https://downloads.leginfo.legislature.ca.gov/pubinfo_2025.zipFetched: 6/27/2026