Abstract: In this report, Halperin attempts to clarify what is at stake in choosing among the various recent proposals for corporate tax reform. He addresses the issues of limiting any preference for corporate income to business income as opposed to income from services or investments, the ability to provide equivalent treatment for passthrough investors (which, surprisingly, can be achieved by taxing only the return on reinvested earnings at the low corporate rate), and the difficulty of achieving full taxation at the shareholder level.