What is the difference between a private foundation and a public charity?
Every section 501(c)(3) organization is classified as either a private foundation or a public charity. Private foundations and public charities are distinguished primarily by the level of public involvement in their activities.
Public charities generally receive a greater portion of their financial support from the general public or governmental units, and have greater interaction with the public. A private foundation, on the other hand, is typically controlled by members of a family or by a small group of individuals, and derives much of its support from a small number of sources and from investment income. Because they are less open to public scrutiny, private foundations are subject to various operating restrictions and to excise taxes for failure to comply with those restrictions.
Under the tax law, a section 501(c)(3) organization is presumed to be a private foundation unless it requests, and qualifies for, a ruling or determination as a public charity. Organizations that qualify for public charity status include churches, schools, hospitals, medical research organizations, publicly-supported organizations (i.e., organizations that receive a specified portion of their total support from public sources), and certain supporting organizations.