Drawing on two online studies among predominantly U.S.-born and lawful permanent resident Latinxs, we developed a self-report scale intended to capture how discrimination related to perceived legal status, as well as perceptions of racial/ethnic marginalization of Latinxs in U.S. society, are experienced among a wide swath of the Latinx population. We also explore how these processes may be associated with psychological distress in this population. In line with the immigration scholarship that has identified a spillover effect of immigration enforcement and the racialization of legal status beyond the undocumented population, our exploratory factor analysis results from Study I (N = 355 Latinxs) collected in fall of 2013 revealed four factors among our study population: Fear of Deportation, Marginalization of Latinxs in U.S. Society, Marginalization Due to Perceived Illegality, and Fear Due to Perceived Illegality. Results from a confirmatory factor analysis from a separate study conducted in spring of 2016 (Study II; N = 295 Latinxs) provided evidence in support of the structure identified in Study I. Results also revealed evidence of the association between the Stigma of Illegality and Marginalization of Latinxs (SIML) subscales and psychological distress, measured as anxiety and depression. Implications of these findings are discussed.