This document contains graphs and analysis of corporate tax rates over time in various countries including the US. It shows that the median US corporate tax rate has slowly declined but not as much as other countries, with the effective tax rate for the bottom 25% of US companies dropping more significantly. International tax rates have decreased more substantially as countries compete on lowering corporate taxes. There are also greater variations in effective tax rates within industries in the US compared to differences between industries.

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5. Tax Burden = Net Income / Pretax Income
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7. 45%
40%
35%
30%
25%
20%
15%
10%
5%
0%
Effective Corporate Tax Rates: 2013
MEDIAN MAD
Lower tax
locales are
geographically
diverse
US tax rates
are relatively
high
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8. 15%
10%
5%
0%
-5%
-10%
-15%
Effective Corporate Tax Rates: Changes in Median
2013 compared to 2003
Countries
seem to be
competing on
lowering
corporate tax
rates
Minor drop
in median
tax rates in
the US
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9. 60%
55%
50%
45%
40%
35%
30%
25%
20%
15%
10%
Effective Median Corporate Tax Rates
US rates have slowly drifted down
over time but have failed to
match tax cuts in most other
parts of the world
1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015
JAPAN US UK GERMANY CHINA
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10. 45%
40%
35%
30%
25%
20%
15%
10%
Corporate Tax Rate: US
MEDIAN Q3 Q1
The median seems pretty steady
over time but there has been a
significant drop in the effective
tax rate for the bottom 25% of
companies paying taxes
1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015
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11. 45%
40%
35%
30%
25%
20%
15%
10%
5%
0%
45%
40%
35%
30%
25%
20%
15%
10%
5%
0%
Effective US Corporate Tax Rates: 2013
MEDIAN QRANGE There are greater intra-sector
differences as compared to
across sector differences in
effective tax rates
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