Hi!
I have the same inquiries (almost exactly the same as the previous poster) just a year later.
I was in the US since 2023 and left on June 29th 2025, I had my work permit for the entire time until I moved to Spain. I stoped working at the end of may 2025 with my employer and then moved countries. I see you asked something regarding taking any steps to inform US Immigration that I left the country and I don't believe I did? would that be an issue?
How would I have to file for part-year resident alien? I have both W-2 and 1099-NEC.
