As of October 2024, the TSP G Fund interest rate is 3.875%. The rate is calculated monthly, based on the average yield of all U.S. Treasury securities with 4 or more years to maturity. The chart and table below show the recent history of the G Fund rate. The rate has fluctuated in the 0.75% to 5.00% range since 2012:
Date | Interest Rate |
---|---|
October 2024 | 3.875% |
September 2024 | 4.000% |
August 2024 | 4.125% |
July 2024 | 4.500% |
June 2024 | 4.625% |
May 2024 | 4.750% |
April 2024 | 4.250% |
March 2024 | 4.375% |
February 2024 | 4.125% |
January 2024 | 4.000% |
December 2023 | 4.500% |
November 2023 | 5.000% |
The G Fund interest rate is near all-time lows. But if you look back further in history to the late 1980s, the G Fund returned over 9 percent per year:
The G Fund compares very favorably to other risk-free investments. For example, in July 2013, the G Fund interest rate was 2.125%. By comparison, the best Bank CDs were yielding 0.45% for a 3-month term, or 1.8% for a 5-year term. Also, from the chart above you can see that the interest rate on the G Fund is almost always higher than the 3-month Treasury Bill yield.
The G fund will not lose money — its returns are guaranteed by the U.S. Government. That makes it very different from a typical bond fund, where your principal fluctuates with the rise and fall of interest rates. The chart below shows the historical performance of the TSP G Fund, and is updated every business day with the latest TSP G Fund price:
The G Fund has earned a compound annualized return of 4.2% since August 1990. Its year-to-date return is 3.39%, and its 1-year return is 4.55%. A $1,000 investment in 1990 would be worth $4,130 today.
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