The tax reform is perhaps the single most important agenda for Republicans. The consequence for falling short of the tax overhaul is dire. Should Republicans fail to deliver the tax reform, they could face a rout in the mid-term elections next year. This means losing control of the Senate and possibly also the House of Representatives where they have a majority now. Recently, Treasury Secretary Steve Mnuchin has suggested that stock market could give back much of the gain if tax reform fails. Mnuchin said during a recent interview with Politico: “There is no question that the rally in the stock market has baked into it reasonably high expectations of us getting tax cuts and tax reform done”.  Given the high stake, the market seems to believe that some version of tax reform is likely to come out of Washington.

Reduction in corporate tax rate will boost S&P 500 Earnings Per Share

S&P 500 has gained in value more than $3.5 trillion since Trump’s election last November. Some suggest that it is due to the investor’s expectations that the Earnings Per Share of the S&P 500 companies would get a boost, and thus increase the valuation. One major component in the tax reform proposal is a reduction in corporate tax rate. Trump proposed a reduction from the current effective tax rate of 25.4% to 15% while he was a presidential candidate, while House Speaker Paul Ryan proposed a reduction in corporate tax rate to 20%.

An estimate by Ned Davis Research suggests that a drop in the corporate tax rate from the current effective tax rate of 25.4% to 20% will boost S&P 500 EPS (Earnings Per Share) by 7.2%, while an adjustment to 15% corporate tax rate would increase S&P 500 EPS by 13.9%.  The percentage increase in after-tax income is even greater for mid-cap and small-cap companies as the chart below shows:

Trump’s tax reform plans passed an important hurdle last week when the Senate approved a budget measure which allows the Republicans to deliver a tax-cut package without Democratic support. The Republicans still have yet to produce the tax reform bill as the end of the year approaches. At present, there’s still a lot of disagreement as to what cuts to make and how to pay for them. However, with the intense pressure to succeed on tax reform after they fail to repeal and replace Obamacare, there’s a good chance that some forms of tax reform will come out either this year or in the first half of next year.