We originally bought the house together and both our names were on the mortgage and deed. However, after refinancing we took my name off the mortgage and deed in case I wanted to buy another home. That never happened. We have always lived at the same house. The last two years I've paid the mortgage payments. However, since my name is not on the deed or mortgage can I claim the mortgage interest deduction? We consider ourselves 50/50 owners even though my name isn't on the deed or mortgage.