Corporations now pay a very low share of federal taxes: Corporate taxes as a share of federal revenue, 1952–2015

Fiscal Year Corporate Income Taxes
1952 32.1%
1953 30.5%
1954 30.3%
1955 27.3%
1956 28.0%
1957 26.5%
1958 25.2%
1959 21.8%
1960 23.2%
1961 22.2%
1962 20.6%
1963 20.3%
1964 20.9%
1965 21.8%
1966 23.0%
1967 22.8%
1968 18.7%
1969 19.6%
1970 17.0%
1971 14.3%
1972 15.5%
1973 15.7%
1974 14.7%
1975 14.6%
1976 13.9%
1977 15.4%
1978 15.0%
1979 14.2%
1980 12.5%
1981 10.2%
1982 8.0%
1983 6.2%
1984 8.5%
1985 8.4%
1986 8.2%
1987 9.8%
1988 10.4%
1989 10.4%
1990 9.1%
1991 9.3%
1992 9.2%
1993 10.2%
1994 11.2%
1995 11.6%
1996 11.8%
1997 11.5%
1998 11.0%
1999 10.1%
2000 10.2%
2001 7.6%
2002 8.0%
2003 7.4%
2004 10.1%
2005 12.9%
2006 14.7%
2007 14.4%
2008 12.1%
2009 6.6%
2010 8.9%
2011 7.9%
2012 9.9%
2013 9.9%
2014 10.6%
2015 10.8%

Source: ATF and EPI analysis of OMB (2016b)

View the underlying data on epi.org.