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Elections & Markets: Will higher taxes sink stocks?

October 22, 2020

Elections & Markets: Will higher taxes sink stocks?                                           

Key Takeaways

  • Despite the assumption many have that increasing tax rates would sink stocks, historically, markets have produced better-than-average returns in the wake of tax increases.
  • Other economic factors, such as ongoing stimulus and an accommodative Fed, can counterbalance the influence of higher taxes.

With elections less than 30 days away, there is no shortage of things to worry about as investors.  In the event of a Democratic sweep, one of the central concerns is higher taxes, leading to a common question on whether higher corporate taxes will sink stock markets? 

companies had proven to be profitable in a higher-tax environment for decades prior to the 2017 tax cuts. 
Biden’s proposed tax plan would restore many provisions of the tax code prior to the passage of the 2017 Tax Cuts and Jobs Act (TCJA).  Under Biden’s proposal, the corporate tax rate would rise to 28% from 21%.  The last corporate tax hike was in August 1993 when the rate was raised from 34 to 35%[i].  From 1993-2017, the stated corporate tax rate remained at 35% until the 2017 tax cuts reduced it to 21%.  In reality, many companies paid less than the stated rate of 21%.  The effective tax rate, meaning the tax rate that companies actually paid after tax breaks and deductions, at the end of 2019 according J.P. Morgan was 17.5%.  With the Biden partial tax hike proposal, J.P. Morgan estimates the effective tax rate will be around 21%, below the proposed rate of 28%.  They also state this will have an impact on corporate earnings, but don’t anticipiate it to be catastropic as

While the fate of taxes after the election remains uncertain, a study by Fidelity looked at tax increases across corporate, personal, and capital gains, and their impact on the stock market as measured by the S&P 500 index since 1950[ii].  In the 13 instances of tax increases since 1950, the S&P 500 index had higher average returns despite the increase.  Another finding of the study is that stocks rose 100% of the time when corporate taxes were raised.  The data analzed by Fidelity looked at the calendar year of the tax changes, plus the year prior and the year after.  This may appear counterintuitive to conventional expectation. 

These observations of the past are not meant to draw a conclusion that tax policies can’t have an impact on the market in the short term.  They certainly can, but there are many other factors to consider as well.  Tax increases are often accompanied with additional stimulus such as increased defense spending and expanded government social programs as shown in the chart above.  These examples have acted as a counterbalance, making it difficult to predict the direction of stock markets.  In 2020, continued stimulus from low interest rates set by the Federal Reserve and additional government spending for individuals, as well as likely future spending on infrastructure, seem likely given the delicate nature of the economic recovery to date.  In short, taxes matter, but not necessarily for their forecasting ability. 


[ii] Source: