What Is The I Bond Rate For May 2025. In may your rate will reset to 3.20% (1.30% fixed + 1.90% composite). The interest rate on i bonds changes every six months, and with the latest inflation reading now released, we can calculate what the next rate will be on existing i bonds.

The next new rate will go into effect may 1, 2025. The interest rate on i bonds changes every six months, and with the latest inflation reading now released, we can calculate what the next rate will be on existing i bonds.