Comparability is the level of standardization of accounting information that allows the financial statements of multiple organizations to be compared to each other. This is a fundamental requirement of financial reporting that is needed by the users of financial statements.

Financial statements are more comparable when the same accounting policies and standards are applied across multiple reporting periods, as well as across multiple entities within an industry. For example, if a number of oil and gas firms consistently apply the same industry-specific accounting standards to their financial statements, then there should be a high level of comparability within that industry.