The tax laws encourage home ownership with a variety of tax breaks, and the largest involves deducting the interest that homeowners pay on mortgages. Right now, there aren’t major legal changes on the books that will affect the mortgage deduction in 2017, but the recent results of the presidential election point to a broader shift that could have implications for some homeowners in the future. Let’s look more closely at how the mortgage interest deduction works and how it interacts with other home-related tax breaks.