Marco Rubio’s tax proposal would convert the federal income tax into a consumption tax by not taxing investment income of individuals and by converting the corporate income tax into a cash-flow consumption tax. It would replace most deductions and exemptions with a universal credit; eliminate estate taxes, the AMT, and all ACA taxes; and move the US to a territorial tax system. A new $2,500 child credit would aid families with children. Taxes would fall at all income levels, with high-income households benefiting the most. Revenues would decline by $6.8 trillion over a decade (assuming no change in economic growth).