I am a Massachusetts nonresident with rental property income in the state. I also trade stocks (not as a business). I noticed when completing my MA taxes that all of my capital gains/losses transactions are treated by Turbotax as MA transactions (and subject to MA income tax) unless I designate each transaction as "Non-Massachusetts source." This is very tedious, as I have hundreds of transactions from last year. Is there any way to designate ALL of my stock transactions as non-Massachusetts at one time? Thanks!
... View more