You were right to question the result that you observed. This happens frequently and is easy to correct.
Go back to the Deductions and Credits section of your tax return and delete your entries for mortgage interest, PMI, and real estate taxes.
Go to the Wages and Income section, scroll down to Rental Properties and Royalties. In this section, please review your entries for common expenses, being certain that you entered the total for the year.
TurboTax will apportion your common expenses based on the rental space and the period of time in use as a rental. The remainder of those expenses will be transferred to Schedule A as potential itemized deductions.
