TSP G Fund Rate History
The TSP G Fund interest rate for every month, March 2001 – October 2026. Next month's estimate: 5.25% for November .
TSP G Fund rate since 2001
TSP G Fund rate by month, March 2001 to October 2026 Ranges from 0.625% to 5.50%; October 2026: 5.375%. 0% 2% 4% 6% 2005 2010 2015 2020 2025 Rates from October 2025 on are the rates published by the TSP. Months marked * are computed by this site with the statute formula (5 U.S.C. § 8438) from U.S. Treasury's archived yield curve and Monthly Statement of the Public Debt — the same calculation that matched every TSP rate it has been checked against.
2026 G Fund rates Month Rate Change October 5.375% +0.50% September 4.875% unchanged August 4.875% +0.375% July 4.50% unchanged June 4.50% unchanged May 4.50% +0.125% April 4.375% +0.375% March 4.00% −0.25% February 4.25% unchanged January 4.25% +0.125%
2025 G Fund rates Month Rate Change December 4.125% unchanged November 4.125% −0.125% October 4.25% unchanged September * 4.25% −0.125% August * 4.375% +0.125% July * 4.25% −0.25% June * 4.50% +0.25% May * 4.25% unchanged April * 4.25% unchanged March * 4.25% −0.375% February * 4.625% unchanged January * 4.625% +0.375%
2024 G Fund rates Month Rate Change December * 4.25% −0.125% November * 4.375% +0.50% October * 3.875% −0.125% September * 4.00% −0.125% August * 4.125% −0.375% July * 4.50% −0.125% June * 4.625% −0.125% May * 4.75% +0.50% April * 4.25% −0.125% March * 4.375% +0.25% February * 4.125% +0.125% January * 4.00% −0.50%
2023 G Fund rates Month Rate Change December * 4.50% −0.50% November * 5.00% +0.25% October * 4.75% +0.50% September * 4.25% +0.125% August * 4.125% +0.125% July * 4.00% +0.125% June * 3.875% +0.25% May * 3.625% unchanged April * 3.625% −0.50% March * 4.125% +0.50% February * 3.625% −0.375% January * 4.00% +0.125%
2022 G Fund rates Month Rate Change December * 3.875% −0.375% November * 4.25% +0.25% October * 4.00% +0.625% September * 3.375% +0.50% August * 2.875% −0.25% July * 3.125% +0.125% June * 3.00% unchanged May * 3.00% +0.50% April * 2.50% +0.625% March * 1.875% unchanged February * 1.875% +0.375% January * 1.50% unchanged
2021 G Fund rates Month Rate Change December * 1.50% unchanged November * 1.50% unchanged October * 1.50% +0.25% September * 1.25% unchanged August * 1.25% −0.125% July * 1.375% −0.125% June * 1.50% unchanged May * 1.50% −0.125% April * 1.625% +0.25% March * 1.375% +0.375% February * 1.00% +0.125% January * 0.875% unchanged
2020 G Fund rates Month Rate Change December * 0.875% unchanged November * 0.875% +0.125% October * 0.75% unchanged September * 0.75% +0.125% August * 0.625% −0.125% July * 0.75% unchanged June * 0.75% unchanged May * 0.75% unchanged April * 0.75% −0.375% March * 1.125% −0.50% February * 1.625% −0.375% January * 2.00% +0.125%
2019 G Fund rates Month Rate Change December * 1.875% +0.125% November * 1.75% unchanged October * 1.75% +0.125% September * 1.625% −0.50% August * 2.125% +0.125% July * 2.00% −0.125% June * 2.125% −0.375% May * 2.50% +0.125% April * 2.375% −0.375% March * 2.75% +0.125% February * 2.625% −0.125% January * 2.75% −0.25%
2018 G Fund rates Month Rate Change December * 3.00% −0.125% November * 3.125% +0.125% October * 3.00% +0.125% September * 2.875% −0.125% August * 3.00% +0.125% July * 2.875% +0.125% June * 2.75% −0.125% May * 2.875% +0.125% April * 2.75% −0.125% March * 2.875% +0.25% February * 2.625% +0.25% January * 2.375% unchanged
2017 G Fund rates Month Rate Change December * 2.375% unchanged November * 2.375% +0.125% October * 2.25% +0.125% September * 2.125% −0.125% August * 2.25% unchanged July * 2.25% +0.125% June * 2.125% −0.125% May * 2.25% unchanged April * 2.25% unchanged March * 2.25% −0.125% February * 2.375% unchanged January * 2.375% +0.125%
2016 G Fund rates Month Rate Change December * 2.25% +0.50% November * 1.75% +0.25% October * 1.50% unchanged September * 1.50% +0.125% August * 1.375% unchanged July * 1.375% −0.375% June * 1.75% unchanged May * 1.75% +0.125% April * 1.625% unchanged March * 1.625% −0.125% February * 1.75% −0.375% January * 2.125% unchanged
2015 G Fund rates Month Rate Change December * 2.125% +0.125% November * 2.00% +0.125% October * 1.875% −0.125% September * 2.00% unchanged August * 2.00% −0.125% July * 2.125% +0.125% June * 2.00% +0.125% May * 1.875% +0.125% April * 1.75% −0.125% March * 1.875% +0.375% February * 1.50% −0.50% January * 2.00% unchanged
2014 G Fund rates Month Rate Change December * 2.00% −0.125% November * 2.125% −0.125% October * 2.25% +0.125% September * 2.125% −0.125% August * 2.25% unchanged July * 2.25% +0.125% June * 2.125% −0.125% May * 2.25% −0.125% April * 2.375% +0.125% March * 2.25% unchanged February * 2.25% −0.25% January * 2.50% +0.25%
2013 G Fund rates Month Rate Change December * 2.25% +0.125% November * 2.125% unchanged October * 2.125% −0.25% September * 2.375% +0.25% August * 2.125% unchanged July * 2.125% +0.375% June * 1.75% +0.375% May * 1.375% −0.125% April * 1.50% unchanged March * 1.50% −0.125% February * 1.625% +0.25% January * 1.375% +0.125%
2012 G Fund rates Month Rate Change December * 1.25% −0.125% November * 1.375% +0.125% October * 1.25% unchanged September * 1.25% unchanged August * 1.25% −0.125% July * 1.375% +0.125% June * 1.25% −0.25% May * 1.50% −0.25% April * 1.75% +0.25% March * 1.50% +0.125% February * 1.375% −0.125% January * 1.50% −0.125%
2011 G Fund rates Month Rate Change December * 1.625% −0.125% November * 1.75% +0.125% October * 1.625% −0.125% September * 1.75% −0.50% August * 2.25% −0.375% July * 2.625% +0.125% June * 2.50% −0.25% May * 2.75% −0.25% April * 3.00% +0.125% March * 2.875% unchanged February * 2.875% +0.125% January * 2.75% +0.375%
2010 G Fund rates Month Rate Change December * 2.375% +0.25% November * 2.125% unchanged October * 2.125% unchanged September * 2.125% −0.25% August * 2.375% −0.125% July * 2.50% −0.375% June * 2.875% −0.25% May * 3.125% −0.25% April * 3.375% +0.25% March * 3.125% unchanged February * 3.125% −0.25% January * 3.375% +0.625%
2009 G Fund rates Month Rate Change December * 2.75% −0.25% November * 3.00% unchanged October * 3.00% unchanged September * 3.00% −0.125% August * 3.125% −0.125% July * 3.25% +0.125% June * 3.125% +0.375% May * 2.75% +0.375% April * 2.375% −0.375% March * 2.75% +0.25% February * 2.50% +0.50% January * 2.00% −0.625%
2008 G Fund rates Month Rate Change December * 2.625% −0.875% November * 3.50% −0.125% October * 3.625% unchanged September * 3.625% −0.125% August * 3.75% −0.125% July * 3.875% unchanged June * 3.875% +0.25% May * 3.625% +0.375% April * 3.25% unchanged March * 3.25% −0.125% February * 3.375% −0.50% January * 3.875% unchanged
2007 G Fund rates Month Rate Change December * 3.875% −0.50% November * 4.375% −0.125% October * 4.50% unchanged September * 4.50% −0.25% August * 4.75% −0.25% July * 5.00% +0.125% June * 4.875% +0.25% May * 4.625% unchanged April * 4.625% unchanged March * 4.625% −0.25% February * 4.875% +0.125% January * 4.75% +0.25%
2006 G Fund rates Month Rate Change December * 4.50% −0.125% November * 4.625% unchanged October * 4.625% −0.125% September * 4.75% −0.25% August * 5.00% −0.125% July * 5.125% unchanged June * 5.125% unchanged May * 5.125% +0.25% April * 4.875% +0.25% March * 4.625% +0.125% February * 4.50% +0.125% January * 4.375% −0.125%
2005 G Fund rates Month Rate Change December * 4.50% −0.125% November * 4.625% +0.25% October * 4.375% +0.375% September * 4.00% −0.25% August * 4.25% +0.25% July * 4.00% unchanged June * 4.00% −0.25% May * 4.25% −0.25% April * 4.50% +0.125% March * 4.375% +0.25% February * 4.125% −0.125% January * 4.25% −0.125%
2004 G Fund rates Month Rate Change December * 4.375% +0.375% November * 4.00% −0.125% October * 4.125% unchanged September * 4.125% −0.25% August * 4.375% −0.125% July * 4.50% −0.125% June * 4.625% +0.25% May * 4.375% +0.625% April * 3.75% −0.125% March * 3.875% −0.25% February * 4.125% unchanged January * 4.125% −0.25%
2003 G Fund rates Month Rate Change December * 4.375% +0.125% November * 4.25% +0.25% October * 4.00% −0.50% September * 4.50% unchanged August * 4.50% +1.00% July * 3.50% +0.125% June * 3.375% −0.50% May * 3.875% unchanged April * 3.875% +0.125% March * 3.75% −0.375% February * 4.125% +0.25% January * 3.875% −0.50%
2002 G Fund rates Month Rate Change December * 4.375% +0.375% November * 4.00% +0.25% October * 3.75% −0.50% September * 4.25% −0.375% August * 4.625% −0.375% July * 5.00% −0.125% June * 5.125% unchanged May * 5.125% −0.375% April * 5.50% +0.50% March * 5.00% −0.125% February * 5.125% unchanged January * 5.125% +0.25%
2001 G Fund rates Month Rate Change December * 4.875% +0.50% November * 4.375% −0.375% October * 4.75% −0.25% September * 5.00% −0.125% August * 5.125% −0.375% July * 5.50% unchanged June * 5.50% unchanged May * 5.50% +0.375% April * 5.125% unchanged March * 5.125% —
TSP G Fund Forecast