<prompt> Human: My partner and I same-sex; not able to get married until next summer bought a house this past June. To get the interest rate the lowest we could get, we only put me on the mortgage, but were both on the deed. With that said, should I file as an individual, or is there a way to file jointly?  <response>: If youre not married, then you file as single. Since only your name is on the mortgage, I believe that only you will be able to claim the mortgage interest deduction. Since youre both on the deed, either of you could claim the property tax deduction. If you both claimed it, you would have to split it. It probably makes sense for you to claim all of both deductions and your partner to take the standard deduction. You may be required to split the property tax deduction, but Im not sure. If only one of you claimed the whole amount, the IRS will probably never care, however. Publication 530 is what you should read. 