I Bond Rates to Increase by Quarter-Point in May 2026
I bond rates are set to increase by approximately 0.25 percentage points in May 2026, driven by rising inflation, particularly in energy prices linked to the Iran conflict. The inflation component of the composite rate is expected to rise to 3.34%, with the new rate applying to existing I bonds over the next six months. Future rate changes will depend on ongoing inflation trends.
Topics: Consumer Price Index (CPI) I bonds inflation Treasury rates