The interest rate on a savings account can move after a Federal Reserve decision without waiting for a dramatic announcement from your bank. That matters because the APY on a variable-rate savings account can change independently, and the timing can vary by institution.
The Federal Reserve raised its federal funds target range by a quarter percentage point on September 16, 2026, putting the range at 3.75% to 4%. That does not mean every savings account will immediately earn more. It means savers have another reason to check the rate attached to their money rather than waiting for an email to explain what happened.