This year, as in many previous years, I plan to file a join return with my wife. I am self-employed and will select that option for TurboTax software. My son, now 17 years old, filed his tax return last year on paper. This year, I'm wondering if I can add my son to my account as a family member and use TurboTax to file his return online. If so, how would I do that? Does he need his own account/sign in or can I use my existing account/sign-in? Thanks.
