Thanks a lot.How about if I still have some income from MA?Because I also work for a MA company at its foreign site as part-time worker.It pays me from its head...

Yes, you are right.I have a green card.I think I should be treated as resident alien for tax purposes.Thank you.

Actually, what I'm confused is whether my residency is regarded as MA, or any state?I returned US (not always to MA) several times per year, each time only stay...

I'm not US citizen but a permanent residence