Retirement tax questions

Thanks for that, on the Dual citizenship, my US passport even provides information for Dual citizens so it seems to be recognized now.

Yes, I’ll run TT without the negative amount to see what the impact is, I’m still waiting for some of the numbers. It won’t be much because I only got a few weeks UK State Pension in 2020. I’m not so concerned this time but I was hoping to establish how to proceed in future years. It would certainly cost me more to get professional advice than I would save for 2020.

On the $10K, see below from IRS.GOV:

John