This paper studies the job creation effect of earned income tax credit inKorea via the labor supply channel using the NaSTaB (National Survey of Taxand Benefit) Panel Data. The analyses are separately carried out for singleparents and married couples. All show that the tax credit program had asignificant positive effect on the household’s labor supply. Using the estimationresults we were able to estimate the number of jobs created by EITC and thecost of creating a single job match. During 2009∼2011, for married couplesthe EITC is estimated to have created 22,500 new job matches using ￦14.2million for each job match while for single parent households it is estimated tohave created 35,800 new job matches using ￦3 million for each match.However, since the number of sample households receiving EITC in theavailable panel dataset is quite small and the estimated number of jobs dependson the assumptions adopted by the study, further research efforts to overcomethe shortcomings of our analysis are strongly called for.