This comprehensive literature review delves into the advantages and disadvantages of outsourcing business functions. It explores the historical development of outsourcing, its impact on various industries, and the challenges associated with it. The review examines key factors such as cost savings, efficiency gains, access to specialized expertise, and potential risks like data security, communication barriers, and quality control issues. It also analyzes the influence of globalization and technological advancements on outsourcing trends. By providing a balanced perspective, this review aims to equip readers with a thorough understanding of the complexities and implications of outsourcing business functions.