The 2017 Tax Cut and Jobs Act lowered the US corporate tax rate and introduced provisions to curb profit shifting. We combine survey data, tax data, and firm financial statements to study the evolution of the geographical allocation of US firms’ profits after the reform. Between 2017 and 2020, the share of profits booked abroad declined by 1–5 percentage points, in part related to repatriations of intellectual property to the US. However, the share of foreign profits booked in tax havens remained stable at around 50%. While aggregated changes in profit allocation are small, a number of firms responded strongly.

This paper constructs homogeneous time series of global household offshore wealth covering the 2001–2023 period, during which major international efforts were implemented to curb offshore tax evasion. We find that: (i) global offshore wealth remained broadly stable as a fraction of global GDP since 2001, following a sharp increase in the 1980s and 1990s; (ii) the location of offshore wealth changed markedly, with a decline in the share held in Switzerland and a rise of Asian financial centers, the United Kingdom, and the United States; and (iii) a growing fraction comes from developing countries.

We study post-Apartheid inequality dynamics in South Africa using a new microdatabase that combines survey, tax, national accounts, and budget data from 1993 to 2019. Until 2005, pretax inequality rose, racial disparities widened, and redistribution stagnated. Thereafter, pretax inequality fell back toward its 1993 level, while major expansions in tax-and-transfer progressivity sharply reduced posttax inequality. Rapid growth of top Black incomes contributed to halving the White-to-Black pretax income ratio and shifted 20% of taxes from Whites to top Black earners. Despite reaching its lowest point in history in 2019, the racial gap remains extreme by international standards, even after redistribution.

This paper quantifies how profit shifting erodes workers’ earnings by reducing profit-sharing payouts in French multinational firms. We leverage newly available administrative microdata on the global activity of multinational firms linked to employer-employee data to build a credible counterfactual of profits and profit-sharing absent profit shifting. We estimate that large French multinationals shift 19% of their foreign profits annually to low-tax jurisdictions, resulting in €10.3 billion shifted out of France and €3.7 billion in lost tax revenues. We show that profit shifting reduces annual employees’ earnings by 2.6%. Low-income workers are disproportionately affected. The bottom 10% of workers lose 3.2% of wages, compared to 2.3% for top 10% earners. Changing the profit-sharing formula to account for global profitability, rather than subsidiary-level profitability, would increase wages by 4.1% for workers in profit-shifting subsidiaries.

This paper examines how the choice between book profits and taxable income affects profit shifting estimation. Using administrative tax data from France (2014-2022) covering the universe of firms with matched tax returns and financial statements, we document substantial book-tax differences, with book profits exceeding taxable income by a factor of 3 to 4. Book profits explain only 23.3% of taxable income variation, challenging the assumption that financial statement data can reliably proxy for tax bases. We demonstrate that measurement choices systematically bias profit shifting estimates. The profitability gap between multinational enterprises and domestic firms is substantially larger using taxable income than book profits. Semi-elasticity estimates vary dramatically by profit measures: pre-tax profit increase by 1.1 percent when the foreign tax rate increases by 1 percentage point, while taxable income increases by 1.9 percent. Tax haven analysis reveals missing profits of €17.7-38.9 billion over 2014-2022, depending on the measure used. These findings suggest studies using financial statement data may substantially underestimate profit shifting and have important implications for policies like the OECD’s Global Minimum Tax.

Over the past decade, more than 100 jurisdictions have signed automatic exchange of financial information agreements (AEoI) in an effort to fight cross-border tax evasion. This paper studies the effectiveness and coverage of these agreements using account data leaked from an Isle of Man bank with a large customer base in countries participating to AEoI. We establish three sets of results. First, we find that the design of the governing AEoI agreement absolved the bank from reviewing and reporting a very large share (81%) of all the wealth owned by tax residents of AEoI participating countries, and instead the responsibility passed to smaller entities with weaker incentives to comply. Second, out of the wealth that fell under the bank’s reporting responsibility, foreign tax authorities only received reports covering 50% of what their tax residents held at the bank. We estimate that a further 32% went unreported due to loopholes in rule design. The rest of the accounts did not appear to have been reported, although through the information available in the leak we classified them as reportable. Third, we find evidence that bank clients who were more at risk of being reported on preemptively closed their accounts, potentially circumventing the AEoI reporting process. This paper provides new evidence on the potential limits of these agreements and how sophisticated individuals can ultimately avoid the AEoI transparency shock.

Cryptocurrencies pose substantial challenges to tax enforcement due to their anonymous and decentralized properties, undermining conventional regulatory practices. We study the impact of an ambitious new enforcement initiative aimed at addressing these challenges: domestic third-party reporting of crypto income. We estimate tax compliance and behavioral responses to this new policy by combining unique Danish microdata from domestic crypto platforms, administrative tax records, and cross-border bank transfers. Despite the introduction of domestic third-party reporting, over 90% of crypto investors do not declare crypto income. Moreover, we identify a significant and persistent evasion response to the policy as investors shift trading activity from domestic platforms, subject to third-party reporting, to foreign platforms outside regulatory reach. Our findings underscore the limits of domestic enforcement strategies in addressing tax evasion for decentralized, borderless assets like cryptocurrencies, highlighting the need for international coordination.

Using a quasi-experimental setting, we document that corporations decrease declared profits and corporate income taxes in response to an increase in the VAT rate. In an attempt to raise tax revenue during the Greek economic crisis, a 16% VAT rate, which existed for historicopolitical reasons in Greek islands, was harmonised to the national 24% rate. We combine tax filings with Orbis and ICAP data that enable us to geolocate corporations and to construct comparable groups based on locations in or out of the preferential rate. Counteracting the reform’s intended effect, declared profits decreased by 28% and corporate income taxes by 34% on a permanent basis. Macroeconomic factors and a fall in reported revenue cannot fully explain this decrease. Pervasive tax evasion in the Greek islands, where corporations might have an opportunity to adjust profits, offers a plausible explanation of the magnitude of responses.

This paper studies how the introduction of multilateral automatic exchange of information (AEOI) in 2017 affects tax compliance. Exploiting rich tax data, variation generated by the interplay of the Swiss tax amnesty with the AEOI, and difference-in-differences designs, I document substantial compliance responses. At the macro level, about 107k taxpayers (2% of all) were pushed to participate in amnesty by the AEOI. Together, they disclosed around 35.2 billion Swiss francs in hidden assets—more than 5% of GDP. I show that the behavioral compliance responses persists at the micro level. Once a tax evader enters the amnesty, their wealth on average increases by 50% and remains at this higher level in subsequent years (relative to the control group). Lastly, I provide evidence that tax evasion is widespread and more evenly distributed in Switzerland than in other European countries—which is consistent with Switzerland’s lack of third-party reporting prior to the AEOI.