Internal Revenue Code Section 4975(e)(2) states “the term ‘disqualified person‘ means a person who is—
(A) a fiduciary;
(B) a person providing services to the plan;
(C) an employer any of whose employees are covered by the plan;
(D) an employee organization any of whose members are covered by the plan;
(E) an owner, direct or indirect, of 50 percent or more of—
(i) the combined voting power of all classes of stock entitled to vote or the total value of shares of all classes of stock of a corporation,
(ii) the capital interest or the profits interest of a partnership, or
(iii) the beneficial interest of a trust or unincorporated enterprise, which is an employer or an employee organization described in subparagraph (C) or (D);
(F) a member of the family
(G) a corporation, partnership, or trust or estate of which (or in which) 50 percent or more of—
(i) the combined voting power of all classes of stock entitled to vote or the total value of shares of all classes of stock of such corporation,
(ii) the capital interest or profits interest of such partnership, or
(iii) the beneficial interest of such trust or estate,
is owned directly or indirectly, or held by persons described in subparagraph (A), (B), (C), (D), or (E);
(H) an officer, director (or an individual having powers or responsibilities similar to those of officers or directors), a 10 percent or more shareholder, or a highly compensated employee (earning 10 percent or more of the yearly wages of an employer) of a person described in subparagraph (C), (D), (E), or (G); or
(I) a 10 percent or more (in capital or profits) partner or joint venturer of a person described in subparagraph (C), (D), (E), or (G).
The above definitions also make a disqualified person any entity in which equity interests of fifty percent or more are owned by the IRA owner or a member of the IRA owner’s family. The definition of family member in Section 4975(e)(6) does not include does not include sisters, brothers, uncles, aunts, or any other non-lineal descendant.