The Costs of Corporate Tax Complexity

Working Paper: NBER ID: w24382

Authors: Eric Zwick

Abstract: Does tax code complexity alter corporate behavior? This paper investigates this question by focusing on the decision to claim refunds for tax losses. In a sample of 1.2M observations from the population of corporate tax returns, only 37% of eligible firms claim their refund. A simple cost-benefit analysis of the tax loss choice cannot explain low take-up, which motivates an investigation of how tax complexity alters this calculation. A research design exploiting tax preparer switches, deaths, and relocations shows that sophisticated preparers increase the claiming behavior of small and mid-market firms. Tax complexity decreases take-up among large firms through interactions of refund claims with other tax code provisions and with the audit process.

Keywords: Corporate Tax Complexity; Tax Refunds; Fiscal Policy; Tax Code; Corporate Behavior

JEL Codes: D22; D92; E62; H2; H25; H3


Causal Claims Network Graph

Edges that are evidenced by causal inference methods are in orange, and the rest are in light blue.


Causal Claims

CauseEffect
Tax preparer sophistication (H26)Likelihood of claiming carryback refunds (H26)
Certified public accountants (CPAs) (M41)Likelihood of claiming refunds (H26)
Size of a preparer's client base (L84)Likelihood of claiming refunds (H26)
Tax complexity (H26)Takeup rates of refunds (large firms) (H32)
Corporate alternative minimum tax (AMT) (G32)Likelihood of claiming refunds (large firms) (H32)
Tax complexity (H26)Suboptimal claiming behavior (small firms) (D21)
Agency problems (G34)Suboptimal claiming behavior (small firms) (D21)

Back to index