As of April 2025, U.S. Treasury I Bonds are projected to offer a composite rate of approximately 3.98% for bonds issued between May and October 2025. This rate comprises a fixed rate of 1.1% and a variable rate of 2.86%, reflecting a 1.43% increase in non-seasonally adjusted inflation from October 2024 through March 2025 https://www.federalpensionadvisors.com/post/i-bond-rates-prediction-2025