Personal Service Corporation Definition A Personal Service Corporation (PSC) is a type of corporation whose main activity involves providing personal services. These services are typically performed by employees who own a significant portion of the corporation’s stock. The Internal Revenue Service (IRS) defines personal services to include activities in fields such as health, law, engineering, architecture, accounting, actuarial science, performing arts, and consulting. Due to their structure, PSCs are subject to certain adverse tax implications, most notably being taxed at the highest corporate tax rate.
