This essay examines the impact of Australian Accounting Standard Board (AASB) 16, aligning with IFRS 16, on lease accounting, effective from January 1, 2019. Replacing IAS 17, AASB 16 redefines lease accounting, emphasizing balance sheet impacts. The study covers the definition of a lease, effective dates, and transition methods, including full retrospective and accumulated approaches. It details lessee and lessor accounting practices, highlighting the recognition of 'right-of-use' assets and lease liabilities, and discusses optional accounting simplifications for short-term and low-value leases. Necessary disclosures for financial reporting compliance are outlined, referencing checklist codes. A case study of Qantas illustrates the practical implications of adopting AASB 16, focusing on changes to balance sheet recognition of assets and liabilities and the transition methods employed by the company. The essay concludes by underscoring the importance of understanding and implementing AASB 16 for accurate and standardized financial reporting.