Immigration policies, per se, are outside the purview of the Missouri Budget Project. However, it is the MBP’s mission to provide information about fiscal issues that contributes to informed debate about education, health care, and other policies that affect the common good of Missourians. The Missouri Budget Project believes that sound decisions are based on reliable data. Relatively little has been reported about the contributions of undocumented workers to Missouri. We offer this policy brief to support thoughtful and informed decisions about immigration policy.