There's a government-backed investment paying 4.26% right now and the clock on this specific rate is about to run out. If you've never looked twice at Series I savings bonds, this might be the month to start. The U.S. Treasury is currently paying a 4.26% composite annual rate on I bonds and that rate is only guaranteed for bonds purchased through "October 31, 2026. After that, a new rate takes over on November 1. What Makes I Bonds Different From a Savings Account Unlike a high-yield savings account, I bonds combine two separate interest components into one rate: - Fixed rate: 0.90% — This locks in for the entire 30-year life of the bond, no matter what happens to inflation or interest rates later - Inflation rate: 1.67% — This is the variable half, reset by the Treasury every six months based on CPI data Add them together (with a small cross-product adjustment) and you get the current 4.26% composite rate. The key detail: whatever fixed rate you lock in at the moment you ...