It seems like a no-brainer. “Why pay $20,000 in interest to get $6,600 back from the IRS?” Paying off your mortgage early, either in a lump sum, or through regular, extra payments can be a smart choice for many people. However, it’s not always the case. You need to consider how long you’ll be in the house, how close you are to retirement, and whether or not a hedge against inflation makes sense for you. CNBC just released a special report that looks at when it might make sense, and when it might not, including commentary from several CFPs.