I examine whether tax return information is useful to equity investors. I do so indirectly, by exploiting unique features of the syndicated loan market, as evidence shows that lenders obtain tax returns from borrowers and that lenders’ private information is transmitted to equity markets when institutional investors are part of a loan syndicate. I find significant increases in tax expense valuation and decreases in tax-related market anomalies following the issuance of institutional syndicated loans, suggesting that equity investors find information about firm performance in tax returns that is useful for their trading decisions. I also find evidence suggesting that institutional investors may determine their loan syndicate participation in part based on the value of tax return information. This study extends prior research and informs policy debates over public disclosure of corporate tax return information by providing evidence to support that tax returns can be useful to investor decision making.

We explore whether income tax accounting (ITA) for pensions provides measurement benefits incremental to U.S. GAAP. We use publicly reported Form 5500 defined-benefit pension expense and funding measures, which are calculated using ITA rules, and contrast them with parallel GAAP amounts. We document that ITA measures are more strongly associated with market value, future cash contributions, the cost of equity capital, and credit ratings than comparable GAAP measures, particularly when ITA better maps to economic fundamentals and when GAAP offers greater managerial discretion. Using intraday returns and disclosure times obtained through a Freedom of Information Act request, we also find that markets quickly react to the release of ITA measures in Form 5500. Our study provides novel empirical tests of theory about the benefits of ITA using actual, not imputed, ITA measures and provides evidence that investors can and do use the unique information in a publicly disclosed tax form.