This article delves into the intricacies of aggregate planning for services, exploring its challenges and opportunities. Aggregate planning, a crucial aspect of organizational strategy, aligns production capacity with customer demand. Unlike manufacturing, services present unique challenges due to their perishable nature and inability to be inventoried. The article outlines the general model of aggregate planning and discusses its application in the service industry. Through a case study of ACCOUNTING EXPERT, the article demonstrates how organizations can perform aggregate service planning under various scenarios. It analyzes the impact of demand fluctuations on required workforce and explores strategies for optimizing resource utilization. Moreover, the article highlights the importance of efficient workforce scheduling, on-call labor forces, and flexible production hours in service aggregate planning. Overall, the article emphasizes the need for tailored approaches and adaptive strategies in service aggregate planning to navigate the dynamic service landscape effectively.