Okay, so you didn't enter the ending balance when entering the 1098 but are you sure that you didn't enter the mortgage balance on another screen? Turbo Tax does ask for the ending balance when the the beginning balance you did enter on the 1098 page is more than $750 K and the the origination date is after Dec 15, 2017 or when the interest deduction may be limited. Is it possible that you entered the balance under one of these conditions?
