Retirement tax questions

Hi! Very sorry for my delayed response. For some reason I didn't get a notification that I had received further responses. I very much appreciate this input.

I have rechecked, and on my 2023 return, "$726" is in entered on Line 20. According to Schedule 3, that comes from a foreign tax credit and child care expenses. There is no Form 8606. Should I amend my 2023 tax return to include it?

 

I have marked the "non deductible contributions box" in my 2024 return when reporting the 1099-R, but it makes a significant difference to my tax liability whether I report the amount as $1 or $6500, so I am definitely still being taxed on it.  


I'd be grateful (so grateful) for any further suggestion you have!