<![CDATA[This study aims to analyze the effects of competence, workload, and leadership style on employee performance with self-efficacy as an intervening variable at the Customs and Excise Service and Supervision Office of Middle Type B Bandar Lampung. This research employed a quantitative approach using explanatory research. The population consisted of 144 employees, while the sample consisted of 106 respondents determined using the Slovin formula with a 5% error tolerance. Data were collected through questionnaires using a five-point Likert scale. Data analysis was performed using Partial Least Squares (PLS). The results indicate that competence has a positive and significant effect on self-efficacy and employee performance. Workload has a positive and significant effect on self-efficacy but has no significant effect on employee performance. Leadership style has no significant effect on self-efficacy but has a positive and significant effect on employee performance. Self-efficacy has a positive and significant effect on employee performance. Self-efficacy mediates the effect of competence on employee performance and mediates the effect of leadership style on employee performance, but does not mediate the effect of workload on employee performance. Simultaneously, competence, workload, and leadership style do not significantly affect self-efficacy, whereas competence, workload, leadership style, and self-efficacy simultaneously have a significant effect on employee performance.]]>
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