I have prepared my returns for several years, but had an accountant do it this year.
I always listed each brokerage account (I have 5) in Schedule D for long and short term, and included copies of the supplemental data for each account which gave the details. For my state return (NY) I only included a copy of the Federal sched D, without the supplemental data; because that is how my accountant did it years ago, so I figured it was the proper way.
This year I see my accountant included the supplemental data with both federal and state returns, eventhough he is filing electronically. Will anyone (short of an audit) ever see the supplemental data; is it sent in electronically also?
I am doing my two sons returns, and it got me to wondering if the supplemental data needs to be sent in with their returns or not; Federal and NYS.
NYS has never complained about the way I did it for 25 years, but that is not proof they approve of it.
Thanks.