As a preventative measure against the spread of the coronavirus disease, most educational systems worldwide have shifted to remote learning (COVID-19). However, the quick shift to online learning has produced some difficulties that have yet to be overcome. This paper aims to describe the effects of academic workload on student burnout during online classes. Students in the Philippines face difficulties with remote learning after the COVID-19 crisis. The researchers used data from a sample of 204 respondents obtained from a digital survey containing their responses. The research aims to analyze and give an interpretation of the survey results with the use of Pearson correlation analysis. The content analysis revealed the following categories of effects of academic workload on student burnout during online classes: work is hurried and rushed, workloads are challenging to manage during online classes, feeling discouraged, irritated, stressed, and annoyed, feeling burnout, and feeling fatigued. Furthermore, regression analysis proved that students' academic burnout is significantly influenced by physical workload, reduced sense of performance, effort, and frustration. Thus, education and counseling support are needed to reduce the student’s burnout during online learning.