Ok, got an MA return, paper filing because I'm not sure if out of state preparers can efile and there's been so many problems with MA efiles. got a Schedule INC with the W-2 info on it. Do I still have to attach a paper W-2? If so, where? The instructions keep saying not attaching one 'if necessary' is a 'frequent error' but I can't find out 1. when one is necessary, and 2. where to put it.
I know where I'd like to put it....