Deductions & credits

Thanks for responding. My TurboTax looks entirely different and does not have that check-box option. It also won't let me have a $0.00 outstanding principal amount. Is something going on with TurboTax itself or is it user error? What should I do if there isn't an option at all for "the loan is no longer there at the end of the year is marked as paid off during the year"?