...CarMax Reports Decline in Comparable Store Used Unit Sales; Will ...istockAnalyst.com, OR -12 minutes agoA live webcast of the call will be available on our investor information home page at investor.carmax.com and at www.streetevents.com. A refinance mortgage loan generally means paying off your original mortgage by signing a new loan. Your refinance mortgage loan acts like your typical mortgage loan. That means that you pay most of the same costs you paid to get your original mortgage.