Employer subsidies such as the Work Opportunity Tax Credit (WOTC) and the Welfare-to-Work Tax Credit (WtW) are designed to encourage employment by partially reimbursing employers for wages paid to certain welfare recipients and other disadvantaged workers. In this paper, I examine the effects of these subsidies on employment, wages, and job tenure using unique administrative data from Wisconsin. My ability to precisely identify the subsidy-certified workers allows me to distinguish the effects of program participation from mere eligibility. Using propensity score matching estimation, I find some evidence of short-term improvements in labor market outcomes, but little evidence of sustained benefits. (Contains 5 tables and 38 footnotes.)