I am an international student from Indonesia. I have resided in the US since fall 2015 and will go back to Indonesia once i’m done with masters in Spring 2021. I recently opened a TD Ameritrade a

[pk · Accepted solution]

@divinesams , assuming that  your F-1 status is still in force and this (2015 ) entry was your first US  entry, you would have been an exempt person  through  12/31/2019.  There after you count days of presence from 01/01/2020  towards substantial presence test.  Till passing this test you are a Non-Resident Alien.  Opening  an account  ( financial ) itself does not  change --- just that when you have left the country  , you would become/maintain your NRA status, the taxes  on US sourced income  would need to recognized each year --- ideally the  financial institution should be aware that you are leaving the country  and that they should be withholding your federal taxes  ( as a NRA ).

I do not know if this is  question -- so please tell me more about what situation you are facing, what you are trying to do etc.