How Inflation Affects I Bond Rates in 2025 Inflation plays a crucial role in determining the variable portion of I Bonds. As per the i bond rates prediction 2025, the variable rate is set to increase due to elevated CPI data. This change will impact the current rate for I Bonds, likely making them more attractive in the short term. However, while the variable rate is inflation-depend... https://www.federalpensionadvisors.com/post/2025-irmaa-brackets