A prohibited transaction occurs when the IRA engages in certain transactions with the IRA owner or another disqualified person. For these purposes, a disqualified person includes the following:
the IRA owner
the IRA owner's spouse
the IRA owner's ascending and descending lineal descendants
any spouse of the IRA owner's lineal descendants
investment advisors
the IRA custodian or trustee
certain entities in which the IRA owner owns at least 50% interests
