Don't let the fear of being upside down on a force you into foolish decisions, says Dr. Don Taylor. Having said that, the total expense of a refinance mortgage loan depends on all those factors - interest rate, number of points, and other costs. Lenders will charge several points in order to offer you the lowest rates. With these, the total cost can run between three and six percent of the total amount you borrow. So, for instance, you borrowed $100,000 on a refinance mortgage loan.
