Thank you for replying! I was afraid of that, not just for the lost dollars but for needing to construct 7 years of Form 8606 to go forward.
But I'm still unclear of the mechanics of doing that. If I prepare missing and incomplete Forms 8606 for 7 years (2017-2923), and figure the "correct" reduced basis for each year, then what? Whether I amend from 2021 forward, or start with 2024, how do I re-introduce a basis after showing no basis several of those intervening years (after showing basis in 1997)?
Thanks for any further advice.
