I Bond Calculator

Historical I Bond Issues and Rates

The United States Department of the Treasury announces twice a year new fixed and inflation rates for I Bond issues in May and November.

Future Issues and Rates

The future rates are not predictable, but when new I Bonds will be issued is. The next two issues occur on:

Future I Bond Issues
Year Month Name Press Release
2025 May I Bond Rate Issue of May 2025
2025 November I Bond Rate Issue of November 2025

Past Issues and Rates

The rates for historic issues are listed below. You can click on a simulation link to compute the returns on investment on a purchase of one of these issues. The fixed rate of the issue continue in perpetuity, but the inflation rates from subsequent issues are applied. This occurs using a composite rate formula.

Historical I Bond Issues and Rates
Year Month Investment Simulations Fixed Rate Inflation Rate Composite Rate (Computed) Name Press Release
2024 November 1.20% 0.95% 3.11% I Bond Rate Issue of November 2024
2024 May 1.30% 1.48% 4.28% I Bond Rate Issue of May 2024
2023 November 1.30% 1.97% 5.27% I Bond Rate Issue of November 2023
2023 May 0.90% 1.69% 4.30% I Bond Rate Issue of May 2023
2022 November 0.40% 3.24% 6.89% I Bond Rate Issue of November 2022
2022 May 0.00% 4.81% 9.62% I Bond Rate Issue of May 2022
2021 November 0.00% 3.56% 7.12% I Bond Rate Issue of November 2021
2021 May 0.00% 1.77% 3.54% I Bond Rate Issue of May 2021
2020 November 0.00% 0.84% 1.68% I Bond Rate Issue of November 2020
2020 May 0.00% 0.53% 1.06% I Bond Rate Issue of May 2020
2019 November 0.20% 1.01% 2.22% I Bond Rate Issue of November 2019
2019 May 0.50% 0.70% 1.90% I Bond Rate Issue of May 2019
2018 November 0.50% 1.16% 2.83% I Bond Rate Issue of November 2018
2018 May 0.30% 1.11% 2.52% I Bond Rate Issue of May 2018
2017 November 0.10% 1.24% 2.58% I Bond Rate Issue of November 2017
2017 May 0.00% 0.98% 1.96% I Bond Rate Issue of May 2017
2016 November 0.00% 1.38% 2.76% I Bond Rate Issue of November 2016
2016 May 0.10% 0.08% 0.26% I Bond Rate Issue of May 2016
2015 November 0.10% 0.77% 1.64% I Bond Rate Issue of November 2015
2015 May 0.00% -0.80% 0.00% I Bond Rate Issue of May 2015
2014 November 0.00% 0.74% 1.48% I Bond Rate Issue of November 2014
2014 May 0.10% 0.92% 1.94% I Bond Rate Issue of May 2014
2013 November 0.20% 0.59% 1.38% I Bond Rate Issue of November 2013
2013 May 0.00% 0.59% 1.18% I Bond Rate Issue of May 2013
2012 November 0.00% 0.88% 1.76% I Bond Rate Issue of November 2012
2012 May 0.00% 1.10% 2.20% I Bond Rate Issue of May 2012
2011 November 0.00% 1.53% 3.06% I Bond Rate Issue of November 2011
2011 May 0.00% 2.30% 4.60% I Bond Rate Issue of May 2011
2010 November 0.00% 0.37% 0.74% I Bond Rate Issue of November 2010
2010 May 0.20% 0.77% 1.74% I Bond Rate Issue of May 2010
2009 November 0.30% 1.53% 3.36% I Bond Rate Issue of November 2009
2009 May 0.10% -2.78% 0.00% I Bond Rate Issue of May 2009
2008 November 0.70% 2.46% 5.64% I Bond Rate Issue of November 2008
2008 May 0.00% 2.42% 4.84% I Bond Rate Issue of May 2008
2007 November 1.20% 1.53% 4.28% I Bond Rate Issue of November 2007
2007 May 1.30% 1.21% 3.74% I Bond Rate Issue of May 2007
2006 November 1.40% 1.55% 4.52% I Bond Rate Issue of November 2006
2006 May 1.40% 0.50% 2.41% I Bond Rate Issue of May 2006
2005 November 1.00% 2.85% 6.73% I Bond Rate Issue of November 2005
2005 May 1.20% 1.79% 4.80% I Bond Rate Issue of May 2005
2004 November 1.00% 1.33% 3.67% I Bond Rate Issue of November 2004
2004 May 1.00% 1.19% 3.39% I Bond Rate Issue of May 2004
2003 November 1.10% 0.54% 2.19% I Bond Rate Issue of November 2003
2003 May 1.10% 1.77% 4.66% I Bond Rate Issue of May 2003
2002 November 1.60% 1.23% 4.08% I Bond Rate Issue of November 2002
2002 May 2.00% 0.28% 2.57% I Bond Rate Issue of May 2002
2001 November 2.00% 1.19% 4.40% I Bond Rate Issue of November 2001
2001 May 3.00% 1.44% 5.92% I Bond Rate Issue of May 2001
2000 November 3.40% 1.52% 6.49% I Bond Rate Issue of November 2000
2000 May 3.60% 1.91% 7.49% I Bond Rate Issue of May 2000
1999 November 3.40% 1.76% 6.98% I Bond Rate Issue of November 1999
1999 May 3.30% 0.86% 5.05% I Bond Rate Issue of May 1999
1998 November 3.30% 0.86% 5.05% I Bond Rate Issue of November 1998
1998 September 3.40% 0.62% 4.66% I Bond Rate Issue of September 1998