The present study explored the simultaneous role of various individual, parental, and school factors in students’ test anxiety. Participants included 339 parent-child dyads (N = 678) from 13 elementary and high schools of the Quebec province, Canada. Both dyad members provided data through self-report validated scales at two timepoints (T1 = final year examinations in May-June 2019, T2 = normal school curriculum period, October-November 2019). Results of multilevel linear mixed-effect models revealed that negative stress mindsets, self-oriented and socially prescribed perfectionism, and low autonomous motivation significantly predicted students’ test anxiety months later. Interestingly, after accounting for these individual variables, parents’ trait anxiety, school type and school level predicted a small yet unique part of the variance in students’ test anxiety. However, controlled motivation, parental practices, parental perceived threat in the environment and socioeconomic status did not significantly predict test anxiety once all the other factors considered. Results did not vary significantly across students’ gender. In considering individual, parental and school factors in combination, the current study provides important insights regarding both their relative contribution and their additive relations with students’ test anxiety. In doing so, our work points out possible contextual targets for interventions to reduce students’ test anxiety in school.