If your parents are co-signers on your home, and you are unable to use the mortgage interest tax deduction, they may be entitled to it. They cannot be dropped from the loan without refinancing. As far as adding your pushy boyfriend to title solely for tax break, please think twice. If you were to do so, you could not refinance or sell the property without his consent, and he would be entitled to a share of the proceeds if you sold. Adding him sounds like a huge win for him, and a huge unnecessary gamble for you.