This study investigates the influence of performance appraisal systems on employee motivation and career growth within the service sector. With increasing emphasis on human capital as a strategic asset, understanding how appraisal mechanisms affect employee behavior and development has become crucial. The purpose of this research is to evaluate the extent to which key appraisal factors—such as fairness, feedback quality, goal clarity, and rater competence—contribute to motivation and perceived career advancement opportunities among service sector employees. A quantitative research design was employed using a structured questionnaire administered to 300 respondents from various service-based organizations. Descriptive statistics were used to present demographic profiles and general response trends. Correlation analysis revealed strong positive relationships between appraisal fairness, feedback, motivation, and career growth. Multiple regression analysis confirmed that feedback quality, fairness, and goal clarity significantly predict employee motivation, accounting for 61% of the variance. The findings indicate that well-designed performance appraisal systems do not only serve as evaluation tools but also as motivational drivers and developmental frameworks when executed with transparency and competence. The study highlights the need for organizations to enhance appraisal quality by investing in evaluator training, ensuring regular feedback, and linking appraisal outcomes to tangible career growth opportunities. The results have significant implications for human resource management practices in the service sector, emphasizing a shift from traditional appraisal methods toward more developmental and employee-centric approaches. The study contributes to the growing body of evidence that strategic performance management fosters stronger employee engagement and long-term organizational success.