During World War II, 85 million Americans, a little over half the population, owned what were then called defense savings bonds.

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Historical I Bond Fixed Rates

The fixed rate portion of the I Bond is valid for the life of the bond (30 years). The fixed rate combined with the variable rate equals the total rate of the bond for that time.

Historical Initial Variable Rates

Mean: 1.28%
Median: 1.1%
Highest rate: 3.60%
Lowest rate: 0.00%
Issue DateFixed Rate
May 2014 0.10%
November 2013 0.20%
May 2013 0.00%
November 2012 0.00%
May 2012 0.00%
November 2011 0.00%
May 2011 0.00%
November 2010 0.00%
May 2010 0.20%
November 2009 0.30%
May 2009 0.10%
November 2008 0.70%
May 2008 0.00%
November 2007 1.20%
May 2007 1.30%
November 2006 1.40%
May 2006 1.40%
November 2005 1.00%
May 2005 1.20%
November 2004 1.00%
May 2004 1.00%
November 2003 1.10%
May 2003 1.10%
November 2002 1.60%
May 2002 2.00%
November 2001 2.00%
May 2001 3.00%
November 2000 3.40%
May 2000 3.60%
November 1999 3.40%
May 1999 3.30%
November 1998 3.30%
September 1998 3.40%


Page last modified 9/1/2011