The House Republican tax plan would cut the federal corporate tax rate from 35 percent to 20 percent, but it would broaden the tax base in a misguided way. It would deny businesses a deduction for their imported inputs to production, but exempt exports from their taxable income.
This base change would raise tax revenues by about $100 billion a year, which is causing major blowback in the business community. It would be a radical change in the structure of business taxes and cause large disruptions in the supply chains and tax liabilities of many firms. No other nation that I am aware of structures their income tax base that way.
I’m for radical change in the tax system, but not radical change that would increase taxes on so many businesses and make the system more complex. Yes, border adjustment would reduce tax avoidance and cut compliance costs related to transfer pricing, but it would create other avoidance and compliance issues by spurring manipulation of imports and exports on tax returns.
Most supporters of border adjustment know that the economics of it are dubious, but support it anyway because it would limit the deficit impact of tax reform. That’s an understandable goal, but there are three better solutions than broadening the tax base in a way that would harm companies.
1) Match a corporate tax rate cut with corporate welfare spending cuts. Romina Boccia, Tom Schatz, and I identify $50 billion in corporate welfare cuts in a new op-ed. And it’s easy to find another $50 billion in cuts in tables 1 and 2 here to match the $100 billion from border adjustment. Unlike the proposed tax base broadening, spending cuts would boost growth by reducing microeconomic distortions caused by federal programs.