Quantifying who benefits from corporate tax cuts requires estimates of the effects of taxes on the local economy and on the location decisions of firms and workers. This research analyses every change in state business taxes in the United States since 1980 to show that the largest beneficiaries from a tax cut are the owners of firms (40%), with landowners and workers splitting the remaining (60%) of the economic gains. Where the benefits of corporate tax cuts fall ultimately depends on the relative mobility of firms and workers – and many factors other than tax rates influence their choice of location.