Yes, if you are a home owner and you are a cosignor on the mortgage, you can divide the home mortgage interest deduction with your partner. In Turbo Tax, there should be a question or check box to indicate the your name was not on the 1098/or you did not receive the 1098-- be sure to select this. You should be able to contact your mortgage company and request that you receive a 1098 for 2017.