me and my girlfriend bought a house together on January 8th 2021 and both of our names are on the deed as well as the mortgage. We are not married yet and we are going to file our taxes separately as single. We paid over $12000 in mortgage interest in 2021 and I wish to itemize and claim all the mortgage interest on my return and meanwhile she still uses the standard deduction. I am wondering if this is do-able and is there anything extra we have to prepare for or do? Thanks.
