Generally Accepted Accounting Principles (GAAP) are a set of rules and standards used for financial reporting in the United States. They ensure consistency, reliability, and comparability of financial statements across different organizations.
IFRS: International Financial Reporting Standards, used outside the U.S. for financial reporting.
FASB: The Financial Accounting Standards Board, responsible for establishing and updating GAAP.
Revenue Recognition Principle: A principle within GAAP that dictates how and when revenue should be recognized.