I am a nonresident alien for federal tax purposes in 2015 (due to the visa I'm on and the time I've spent in the US). But I am a resident of Massachusetts for tax purposes, since I've lived in MA for all of 2015.
My question is whether I get taxed on worldwide income in MA (and I assume I do not get taxed on worldwide income federally?)
In case it matters, I have a savings account in my home country (Canada) that has earned me around $500 of interest.