Governments and non-profits devote substantial resources to increasing take-up of the Earned Income Tax Credit (EITC) through educational outreach. We study a different approach: policies that encourage tax filing. In a large field experiment, we find that IRS letters about free tax preparation...

The philanthropic sector is highly consequential, particularly in the United States, and the most important policies directed toward this sector are tax policies. Yet most economic analysis of the optimal tax treatment of charitable giving is ad hoc, treating it as a subject unto itself. This...