Start-up costs are the expenses incurred by a company during the initial stages of its operations. These costs are crucial for businesses as they lay the foundation for future growth and success. In this article, we will delve into the Accounting Standards Codification (ASC) 720-15, which deals with the treatment of start-up costs in financial accounting, and discuss the capitalization and amortization of these costs. We will also provide journal entries to help better understand the process.