Summary
- The I Bond’s six-month variable rate will fall from 2.48% to 2.22% on May 1. The difference in yields is temporary and negligible.
- The fixed rate will also be reset May 1, and odds are that it will hold at 0.1% — or rise to 0.2%, possibly even 0.3%.
- The potential for a higher fixed rate means investors should delay purchases at least until after May 1, maybe even later.
Treasury Inflation-Protected Securities 
I know the redemption would not count against the purchase limit, but if I redeemed to my Treasury Direct account…