I Bonds have proven to be an essential investment for those looking to secure their savings against inflation. The rates for I Bonds, which are set by the U.S. Treasury, consist of a fixed rate and a variable rate, both of which adjust based on inflation data. For May 2025, the variable rate is forecasted to increase to 2.86%, resulting in a composite rate of approximately 3.98%. https://www.federalpensionadvisors.com/post/i-bond-rates-prediction-2025