Investors & landlords

I think you mean that you reported all of the mortgage interest on the house in the rental section of TurboTax and then went to the personal section of the program to enter itemized deductions. That is where you are seeing a question regarding your mortgage interest again. You should not enter the mortgage interest again, as it will automatically be allocated to your itemized deduction schedule A once you enter it in the rental section of TurboTax. This is assuming you choose the option to have TurboTax make the allocation while in the rental section, as it appears you have done.