No.
Just buy a $10K gift for your wife, and she buys a $10K gift for you.
Each leaves it in the gift box.
It earns interest and the current great rate, and ages like any other bond all while in the gift box. It can sit there years.
Beyond the annual 10K limit for each of us.
DW and I have bought gifts for each other of $30K , to be delivered in 2023, 2024, 2025
We also overpaid our income taxes by $5K, and got a $5K i-bond as the refund for 2022.
I have to make quarterly estimated tax payments. I usually try to avoid lending the federal government for free. However, if the Series I interest rates stay high, it looks like well worth overpaying on taxes so one will get a large enough return to get the $5K Series I purchase benefit. Thanks