Accountancy is the process of communicating financial information about a business entity to users such as shareholders and managers.[1] The communication is generally in the form of financial statements that show in money terms the economic resources under the control of management; the art lies in selecting the information that is relevant to the user and is reliable. The principles of accountancy are applied to business entities in three divisions of practical art, named accounting, bookkeeping, and auditing.

Today, accounting is called "the language of business" because it is the vehicle for reporting financial information about a business entity to many different groups of people. Accounting that concentrates on reporting to people inside the business entity is called management accounting and is used to provide information to employees, managers, owner-managers and auditors.