Though taxing corporations may be a political no-brainer, it may be a big economic mistake. This column discusses recent research showing that the tax is not paid primarily by rich corporate shareholders. They can, and do, move their capital away from countries that have high corporate rates. Eliminating the US corporate tax by, for example, taxing accrued global corporate profits as personal income can produce dramatic increases in US investment, output, real wages, and saving. Modest gains accrue to early generations with very sizable gains going to young and future generations, both skilled and unskilled.