My fiance and I bought a duplex last year, live in one side and rent the other. His name is on the title of the house, mine isn't, but I do make active decisions on the property. All rent checks are made out to him but go into a joint account (we aren't married yet though). Should I also be claiming 50% of that rental income since it is in a joint account, or should he be claiming 100% of the rental income since he technically owns the property and the checks are made out to him?