We examine how U.S. individuals respond to regulation intended to reduce offshore tax evasion. The Foreign Account Tax Compliance Act (FATCA) requires foreign financial institutions to report information to the U.S. government regarding U.S. account holders. We first document an average $7.8 billion to $15.3 billion decrease in equity foreign portfolio investment to the United States from tax‐haven countries after FATCA implementation, consistent with a decrease in “round‐tripping” investments attributable to U.S. investors’ offshore tax evasion. When testing total worldwide investment out of financial accounts in tax havens post‐FATCA, we find an average decline of $56.6 billion to $78.0 billion. We next provide evidence of other important consequences of this regulation, including increased expatriations of U.S. citizens and greater investment in alternative assets not subject to FATCA reporting, such as residential real estate and artwork. Our study contributes to both the academic literature and policy analysis on regulation, tax evasion, and crime.

The effects of tax rate changes on corporate profitability are not fully understood. Implicit tax theory predicts a positive relation between country-level tax rates and firm-level pretax returns. Conversely, income shifting should make reported pretax returns inversely related to tax rates. Among single-country European firms, we find robust evidence of corporate implicit taxes following tax rate changes, concentrated in firms that rely less on intangible assets and firms in closed economies (non-EU countries). Among multinational firm affiliates, we find the effects of income shifting outweigh the effects of implicit taxes for firms with high intangibles and in countries with open borders. Our results imply income shifting estimated using only reported profits is less biased by implicit taxes in settings with open economies and firms with unique inputs or products. Our evidence also helps explain prior evidence of decreasing corporate implicit tax effects over time, particularly for multinationals.