In the current study, we examined individual factors, organizational factors, COVID-19 anxiety, and trauma-informed supervision as predictors of prelicensed counsellor burnout and secondary traumatic stress (STS). In a sample of 282 prelicensed counsellors, we conducted two hierarchical regression analyses for counsellor burnout and STS. The variables of interest accounted for 38% of the variance in counsellor burnout and 32% of the variance in counsellor STS. In the model of counsellor burnout, statistically significant variables included age, caseload, setting, COVID-19 anxiety, and trauma-informed supervision. For STS, statistically significant predictor variables were age, caseload, COVID-19 anxiety, and trauma-informed supervision. Implications of the findings for prelicensed counsellors, supervisors, and counselling researchers are discussed.