This study estimates the corporate tax savings from financial derivatives. I document a 3.6 and 4.4 percentage point reduction in three-year current and cash effective tax rates (ETRs), respectively, after a firm initiates a derivatives program. The decline in cash ETR equates to 10.69 million in tax savings for the average firm and 4.0 billion for the entire sample of 375 new derivatives users. Of these amounts, 8.75 million and 3.3 billion, respectively, are incremental to tax savings that theory suggests are a byproduct of risk management. Collectively, these findings provide economic insight into the prevalence of derivatives-based tax avoidance.

We examine how tax cuts that benefit some firms are related to the economic performance of their direct competitors. Consistent with tax cuts decreasing the cost of initiating competitive strategies, we find that a decrease in the tax burden for only a specific group of firms in the U.S. economy (i.e., “rivals”) has a negative economic effect on the performance of its direct competitors not directly exposed to the same tax cut (i.e., “competitors”). This negative externality is stronger when the relatively higher taxed competitors (1) are financially constrained, (2) operate in more competitive markets, (3) have similar products to their lower taxed rivals, (4) face rivals that retain more of their cash tax savings due to lower dividends and share repurchases, and (5) face lower taxed, but financially constrained, rivals. We also find that shareholders and lenders price the negative externality manifested in these competitors’ economic performance.

Subchapter C of the U.S. Internal Revenue Code levies an entity‐level tax on corporate profits, whereas Subchapter S allows corporations meeting specific criteria to elect out of this tax. Despite these differences, C and S corporations regularly compete for customers and capital. We examine whether and the extent to which competition from S corporations influences the future organizational form choice of rival C corporations and explore outcomes of this choice. Using data for 4,462 private U.S. commercial banks grouped by Metropolitan Statistical Area during 1997–2010, we find that greater competition from S corporation banks increases the likelihood that rival C corporation banks convert to Subchapter S status. We estimate that the aggregate first‐year tax savings from S conversion exceed $372 million. Consistent with these savings being used to maintain competitive parity with rivals, we find that converting banks increase their interest rates on customer deposits and advertising intensity. Our findings provide insight into whether competition from tax‐advantaged firms influences the organizational form choice of rival tax‐disadvantaged firms.

Prior research shows that contingent liabilities do not accurately predict future cash payments due to the managerial discretion afforded by accounting standards. We examine the extent to which current accounting guidance for a material contingent liability—the reserve for unrecognized tax benefits (UTBs) under Financial Interpretation No. 48 (FIN 48)—generates accruals that are predictive of future income tax cash outflows. We document that UTBs fully unwind as cash tax payments over the subsequent 5 years, suggesting that managers, on average, accurately incorporate their expectations of future tax liabilities. This result persists for firms that are (1) most affected by the implementation of FIN 48, (2) unable to impound detection risk into their reserves, (3) engaged in relatively more ex ante tax avoidance, (4) suspected to have engaged in earnings management through the tax accounts, and (5) subject to plausibly exogenous shocks to tax reporting. Overall, our results suggest that current accounting guidance under FIN 48 for contingent tax liabilities enables managers to accurately report, and financial statement users to reliably predict, future cash obligations.