So on Thursday I am announcing an over $2 trillion tax cut that would repeal the entire IRS tax code—more than 70,000 pages—and replace it with a low, broad-based tax of 14.5% on individuals and businesses. I would eliminate nearly every special-interest loophole. The plan also eliminates the payroll tax on workers and several federal taxes outright, including gift and estate taxes, telephone taxes, and all duties and tariffs. I call this “The Fair and Flat Tax.”

President Obama talks about “middle-class economics,” but his redistribution policies have led to rising income inequality and negative income gains for families. Here’s what I propose for the middle class: The Fair and Flat Tax eliminates payroll taxes, which are seized by the IRS from a worker’s paychecks before a family ever sees the money. This will boost the incentive for employers to hire more workers, and raise after-tax income by at least 15% over 10 years…

Most important, a smart tax system must turbocharge the economy and pull America out of the slow-growth rut of the past decade. We are already at least $2 trillion behind where we should be with a normal recovery; the growth gap widens every month. Even Mr. Obama’s economic advisers tell him that the U.S. corporate tax code, which has the highest rates in the world (35%), is an economic drag. When an iconic American company like Burger King wants to renounce its citizenship for Canada because that country’s tax rates are so much lower, there’s a fundamental problem.