Get your taxes done using TurboTax

Incidentally, your mother needs to start a new account in Turbotax with a clean slate.  The fact that the interest was issued with your father's name means that he was listed as the "first" taxpayer on the joint return.  Using Turbotax online, it is almost impossible to remove his information from all the hidden areas of the program, even if she tries to change her status to "single" and file in her name.  Therefore, she needs to create a clean account just for herself now.