This study examines the effect of casino tax rate structure on investment by casino operators. Using a panel data set consisting of all states with legal commercial casino gambling from 1998 to 2009, a fixed-effect model with two-stage least squares is estimated to examine the effect of gambling taxes on firms\u27 short-run behavior. The study finds that maximum casino tax rates decrease casino employment, with an estimated average elasticity of -0.5. This result is noted to be robust to several different model specifications and data subsets. No robust relationship is found between maximum tax rates and casino wages. No significant relationship is found between effective tax rates and casino employment