U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 28, 2025
We determine the savings bond rate by compiling 5-year Treasury securities yields as of the close of business for each day of the previous six months and calculating the monthly average to the nearest one-hundredth of one percent. We then determine the savings bonds rate by taking 90 percent of the 6-month average and rounding the result to the nearest one-hundredth of one percent.