@lcorsini-comcast Figure it out yet?
1) Edit the 1099-INT
2) After making sure all the boxes are entered properly on the main form, hit "Continue" at the bottom of the page.
3) On the next page check the box for "My state doesn't tax all of this interest" ...select the state and "Continue".
(I don't know what happens in the pages that follow, since I don't have MA or the other states involved)