This essay provides a detailed discussion of six accounting concepts used in the preparation of financial statements, as required by the International Accounting Standards Board (IASB). It covers concepts such as the business entity concept, which separates the business from its owners, and the money measurement concept, which emphasizes recording transactions in monetary terms. The essay also explores the going concern concept, which assumes continuous business operations, the accounting period concept, which mandates recording transactions for specific periods, the accounting cost concept, which values assets at procurement prices, and the dual aspect concept, which highlights the dual effect of every transaction on accounting books. The conclusion emphasizes the importance of these concepts for effective and rational recording of business transactions, aligning with universally accepted rules.