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1 Kyle Pomerleau, Four Plans for Permanent, Pro-Growth Tax Reform in the 115th Congress 1 (2017)

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SPECIAL
REPORT
No. 237
Sept. 2017


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Four Plans for Permanent,

Pro-Growth Tax Reform in the

115th Congress

Kyle Pomerleau
Economist, Director of Federal Projects


Key Findings
    The House and Senate Republicans of the 115th Congress and the Trump
      Administration have put forth a number of important goals for tax reform:
      economic growth, simplicity, lower marginal tax rates on individuals and
      businesses, and a broader tax base.
    The Tax Foundation has put together four illustrative tax plans that
      demonstrate ways in which lawmakers could accomplish their goals, while
      keeping the level of federal revenue as a percent of GDP and the distribution
      of the tax burden roughly the same as current law.
    Option A focuses on removing the bias against investment from the federal
      tax code by converting the corporate income tax into a 22.5 percent cash
      flow tax, which would allow for full expensing of investments. This plan would
      increase the long run level of GDP by 7.1 percent. The plan is based on the
      House GOP Blueprint, but with a few alterations.
    Option B would scale down the current income tax system and replace the
      revenue with a broad-based, low-rate consumption tax, all while making the
      tax code more progressive than current law. We estimate this plan would
      increase the long run level of GDP by 3.2 percent.
    Option C follows the basic contours of the current tax system but makes
      improvements to both the individual income and corporate income tax codes.
    Option D would substantially lower business tax rates, in addition to other
      improvements to the income tax system, and require spending offsets due
      lower federal revenue in the long run.
    All four of these plans were modeled assuming that all policies were
      permanent. However, it is possible that lawmakers opt to make all or some of a
      tax plan temporary to navigate budget rules. Lawmakers should be cautious of
      using temporary policy.
    We modeled all of these tax plans looking at their impact on revenue after all
      policies have fully phased in. Many of these plans, though, could potentially
      impact revenue over the budget window in different ways, depending on how
      they are structured.
    For this analysis we did not include dynamic revenue estimates, as we limited our
      analysis to tax reform plans that would be deficit-neutral on a conventional basis.
      However, we estimated that all of these plans would improve the tax code and
      boost the long-run size of the economy, which would provide additional revenue.