Leaving the US after becoming US resident on F1 visa?
After 5 years on F1 visa, I became a resident alien for tax purposes based on the substantial presence test. Is there anything I should do if I left the US back to my country at the end of 2020? I was considered resident alien and received the stimulus checks. I understand that I will need to report all my international income for 2020. As far as I have read, I do not need to file a sailing permit. Is there any problem if I got the stimulus checks and left the US afterwards?