Prior research has shown that English learner (EL) classification is consequential for students; however, less is known about how EL classification affects student outcomes. In this study, we examine one hypothesized mechanism: teacher perceptions. Using a national data set (Early Childhood Longitudinal Study--Kindergarten Cohort of 2010-2011 or ECLS-K:2011), we use coarsened exact matching to estimate the effect of kindergarten EL status on teachers' perceptions of students' academic skills. We further explore whether that impact is moderated by instructional setting (bilingual vs. English immersion). We find evidence that EL classification results in lower teacher perceptions. This impact is, however, moderated by bilingual environments. In bilingual classrooms, we do not find evidence that EL classification results in diminished perceptions. This study adds to research on teacher perceptions and the effects of EL classification.