Who Benefits from Corporate Tax Cuts?: Evidence from Banks and Credit Unions around the TCJA

The TCJA of 2017 made large changes to the taxation of corporate and pass-through businesses in the U.S. Understanding the effects of these changes is complicated by the difficulty of finding control firms whose taxation was not altered by the Act. We study the effect of the TCJA on small and medium size banks using credit unions—which compete with these banks for deposits and in making loans—as a novel control group. Credit unions were not taxed both before and after the Act. Using a difference-in-difference framework, we find that an important fraction of the incidence of the tax cut goes to depositors. We find little evidence that employees or borrowers from banks receive a share of the tax cut in the form of higher wages or lower interest rates on loans or that banks increase their investment in fixed assets as a result of the Act