A Behavioral Study of the Meaning and Influence of Tax Complexity
Complexity has been linked to the quality of an income tax system (Dean, Keenan, and Kenney [1980]), including its possible influence on the system's ability to generate revenues (New York State Bar Association [1972]). Given the IRS' recent estimate that $81 billion in annual revenue is lost through noncompliance (IRS [1983, p. 21]), the question of whether tax complexity has a significant effect on taxpayers' reporting positions is a potentially important issue. Complexity represents but one strand in a web of interrelated factors and propositions influencing compliant tax reporting in a democratic society. Nevertheless, it has been singled out as a factor affecting compliance and a study of its effect thereon can be viewed as one step in an ongoing program of study of noncompliance. This study involved two distinct phases. The first phase was devoted to obtaining operational definitions of tax complexity, using multidimensional scaling. These definitions of tax complexity were then used in the second phase of the study to test for potential effects of complexity on reporting position selections in four different tax situations. While phase 1 is critical to phase 2 of my study, this paper highlights the results of the latter. Details of phase 1 can be obtained in Milliron [1984]. In section 2 I discuss previous literature involving tax complexity. Section 3 provides an overview of the methodology and the research issues studied. Sections 4 and 5 describe the data collection procedures