@sche454178 ,
(a) To be treated as a resident ( for tax purposes ) one must pass /meet one of three conditions --- 1. the Green Card test, OR 2. Substantial Presence Test OR an approved request to be treated as a resident .
In each case you are treated as a resident for whole year however, the start of the year varies according to facts and circumstances.
In your case ( and really need more data as to when you entered the USA, how long you stayed during the current tax year et. ), if I were to assume that you applied for Green Card from abroad, and once approved , cam to the USA using the Green Card in August 20th ( say ) and within a week left for your home country ( which country ? ) stayed/ worked there for two months , then re-entered the USA in Dec ( say ), then your year starts from the first full day that you were present in the USA for any purposes. Thus all your earnings from Aug 20th ( in this example ) is part of world earnings and is taxed by the USA. However, because the two months that you were away and worked sitting in your home land, that earnings is classed as foreign earned income and may be eligible for exclusion ( depending again on exact facts and circumstances).
Also note that if you are still working for this foreign entity while in the USA ( work performed here in the US), it is no longer foreign earning --- ( however there may be treaty considerations here -- generally not ).
So please more info and I will circle back
p
