<prompt> Human: Over the past year Ive noticed three of my friends have bought homes with their significant other without being married. Im curious as to whether this is just something people do, or if there is some sort of tax reason or other incentive.  <response>: A lot of people just do this, and I dont think they do it specifically for any sort of advantage. In my opinion, this plan is riddled with way more risk than reward. In fact, the only reward I would see is that you get to take the mortgage interest deductions which will lower your tax liability. But then again, as unmarried individuals filing separately, they can each only deduct the amount they paid. Which just makes the water even more muddy. Not a good move in my opinion to do this ever. 