This study aimed to examine the discrepancies in perceptions of parental academic support between parents and children. A latent profile analysis (LPA) was conducted of parental academic support as perceived by parents and children. Additionally, the study analyzed how income, educational expenses, interaction, and attachment influenced the classification of latent profiles. Furthermore, it investigated whether academic stress differed according to latent profile types. The results of the latent profile analysis revealed that five distinct latent profiles regarding parental academic support as perceived by 9th-grade students and parents. Examining the influence of factors on latent profile classification showed that educational expenses, interaction, and attachment had significant effects on the profiles. An analysis of how latent profile classification influenced adolescents' stress in academic settings indicated that stress varied depending on the latent profile type. Based on the findings, the importance of identifying perception gaps between parents and children was discussed, along with educational implications.