We consider the short-run responses of businesses and their owners to the introduction of Section 199A, a deduction implemented in 2018 that reduced the effective tax rate on pass-through business income. We study the deduction using several datasets derived from de-identified tax records of...

Each year Americans spend over two billion hours and $30 billion preparing individual tax returns, and these filing costs are regressive. To lower and redistribute the filing burden, some commentators have proposed having the IRS pre-populate tax returns for individuals. We evaluate this...

Pareto Efficiency is a core assumption of most models of household decision-making. We test this assumption using a new dataset covering the retirement saving contributions of over a million U.S. individuals. While a vast literature has failed to reject household efficiency in developed...

We provide the first evidence on transgender earnings in the US using administrative data on over 55,000 individuals who changed their gender marker with the Social Security Administration and had gender-congruent first name changes on tax records. We validate and describe this sample which...

We explore bunching at U.S. income tax kinks using a panel of 258 million tax returns from 1996 to 2014. We find bunching at seven kinks, with nearly all bunching occurring at kinks maximizing tax credits. In our sample period, the total number of bunchers increased at an 11 percent annualized...

Appendix A provides a more exhaustive discussion of the bunching we see in the data. It also shows how our bunching estimates vary under alternative parameter choices and polynomial degrees. Appendix B provides descriptive statistics of our Main Sample. Finally, Appendix C discusses the kinks we...

In the United States, marginal tax rates on capital income and ordinary income (e.g. wages and salaries) can vary substantially. The same household might face a federal tax rate on their wage income that is 20 percentage points higher than the tax rate on long-term capital gains. This...