AbstractExpert systems, intelligent databases and other forms of advanced information technology are quickly becoming pervasive tools in accounting and auditing. All the major public accounting firms are either using such systems in their auditing practice or have them under development. This paper describes the use of several systems used for audit planning. These are divided into three functional areas: audit risk assessment, internal control evaluation and audit program development. The advantages and disadvantages of these systems as they relate to auditing are discussed.