This study forecasts the dynamic effects of recent fiscal policy proposals by the Biden administration and congressional Democrats in the “Build Back Better” plan on the nation’s economic output, capital stock, real wages, income, jobs, and tax revenue. We have considered many proposals in the Build Back Better plan which include but are not limited to the $1.2 trillion American Jobs Plan (called the “infrastructure” bill) and the $5 trillion American Families Plan (called the “human infrastructure” bill). Each policy is described in detail, followed by its estimated effects where possible, given the availability of data. In each case, private investment is discouraged, which hamstrings the growth of employment, real wages, and economic output. Total economic harm exceeds total additional revenue, resulting in a net economic loss. The estimates in this paper have been made as conservative as reasonable. The appendix includes state-level effects of increased debt and lost jobs proportionate to each state’s share of the nation’s population.