This study uses valuation allowances (VAs) for deferred tax assets to examine whether hedge fund activists (HFAs) use and affect financial reporting of income taxes. Specifically, we investigate whether HFAs target firms with VAs and whether target firms are more likely to release VAs post‐intervention. We find that the existence, magnitude, and increases in VAs increase the marginal probability that HFAs will target a firm by between 12% and 24%. We also find that target firms are 4.6% more likely to release VAs following the intervention, and this effect persists for up to 2 years. Releases of VAs appear to stem from implemented tax avoidance strategies and changes in financial reporting of income taxes rather than real changes in operating performance or earnings management. Overall, HFAs appear to understand the interplay between tax planning and financial reporting of income taxes and use both to unlock value in target firms.

This study examines the effect of shareholder scrutiny of corporate tax avoidance behavior and its related financial reporting. Specifically, we explore the factors associated with shareholder tax litigation and its effect on the future tax behavior of the sued firm and its peers. We find that sued firms have lower cash and GAAP effective tax rates (ETRs) and engage in extreme tax avoidance before litigation. After litigation, they decrease tax avoidance activities, relative to matched control firms. Peer firms in the same industry as sued firms similarly reduce their level of tax avoidance and the likelihood of extreme tax avoidance after the litigation, relative to control firms. Additional analyses suggest that sued firms change their tax avoidance behavior, rather than merely their tax financial reporting. Finally, the spillover results are strongest for peer firms with the most tax avoidance (i.e., the lowest cash ETRs) when the sued firm's alleged misconduct is revealed.