Series I Bonds Reset to 4.26% APY — the Highest Rate Since 2023 — and the 0.90% Fixed Rate Locks In for 30 Years
The U.S. Treasury on May 1, 2026, set the new Series I bond composite rate at 4.26% for all bonds purchased between May 1 and October 31, 2026. That marks a notable jump from the previous cycle and pairs with a 0.90% fixed rate that locks in for the bond’s full 30-year life. A saver…