ILCS » Chapter 805 · Act 10
Illinois Compiled Statutes

805 ILCS 10/4 (2026)

The "Business Corporation Act of 1983", as now or hereafter amended, shall be applicable to professional corporations organized under this Act, and they shall enjoy the powers and privileges and be subject to the duties, restrictions, and liabilities of other corporations, except where inconsistent with the letter and purpose of this Act

✓ current as of May 2026
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(805 ILCS 10/4) (from Ch. 32, par. 415-4)
    Sec. 4. The "Business Corporation Act of 1983", as now or hereafter amended, shall be applicable to professional corporations organized under this Act, and they shall enjoy the powers and privileges and be subject to the duties, restrictions, and liabilities of other corporations, except where inconsistent with the letter and purpose of this Act. This Act shall take precedence in the event of any conflict with provisions of the "Business Corporation Act of 1983" or other laws.
    This Act shall not apply to any persons within this State who prior to the passage of this Act were rendering personal services by means of a corporation, nor to any corporation organized by them presently in existence or hereafter organized, however such persons may elect to incorporate under the provisions of this Act, or to bring an existing corporation within the provisions of this Act by amending the articles of incorporation in such a manner as to be consistent with all the provisions of this Act and by affirmatively stating in the amended articles of incorporation that the shareholders have elected to bring the corporation within the provisions of this Act.
    A professional association organized under the "Act to Authorize Professional Associations", approved August 9, 1961, as amended, may elect by resolution to bring the association under the provisions of this Act by authorizing its members to incorporate under this Act and stating in the articles of incorporation that the association shall be considered to have merged with the professional corporation so formed. When the articles of incorporation have been filed with the Secretary of State, the professional corporation shall be deemed to have acquired the property and assets and assumed the liabilities of the association; and the association shall thereafter cease to exist as a separate identity.
    Nothing contained in this Act shall alter the right of persons licensed to engage in the rendering of a personal service from so doing in any other business form permitted them by law.
    The provisions of this Act shall not be considered as repealing, modifying or restricting the applicable provisions of law regulating the several professions except insofar as such laws are in conflict with the provisions of this Act, however, the provisions of this Act shall take precedence over any law which prohibits a corporation from rendering any type of professional services. Nothing contained in this Act shall prohibit a professional corporation from employing ancillary personnel.
(Source: P.A. 83-1362.)

    
Notes of Decisions
Cited in 3 cases (1 in the last 5 years), 2005–2026 · leading case: Chatham Foot Specialists, P.C. v. Health Care Serv. Corp., 837 N.E.2d 48 (Ill. 2005).
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Chatham Foot Specialists, P.C. v. Health Care Serv. Corp., 837 N.E.2d 48 (Ill. 2005). “” 805 ILCS 10/4 (West 2000). In section 2 of the Act, the legislature set forth the following stated intent: “It is the legislative intent to provide for the incorporation of an individual or group of individuals to render the same professional service or related professional…”
United States of Am. & The State of Illinois ex rel. Lorine Lagatta v. Reditus Labs., LLC; Tri-Cnty. Anesthesia SC; Myriad Genetics Labs., Inc.; Midwest Urological Grp., Ltd.; Aaron Rossi; Joseph Banno; Lawrence Rossi; AJR Diagnostics, LLC; AJR MD Consulting, LLC; RLL Aviation, LLC; PR Mfg. Enter., LLC; Bryan Zowin; MDXHealth, Inc. (C.D. Ill. 2026). “2005) see also 805 ILCS 10/4 (incorporating Business Corporation Act into Professional Service Corporation Act).”
Chatham Foot Specialist, P.C. v. Health Care Serv. Corp. Corrected opinion posted 10/11/05 (Ill. 2005). “” 805 ILCS 10/4 (West 2000). In section 2 of the Act, the legislature set forth the following stated intent: “It is the legislative intent to provide for the incorporation of an individual or group of individuals to render the same professional service or related professional…”
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