WASHINGTON (MarketWatch) -- The credit squeeze worsened in the past three months, the Federal Reserve reported Monday, and most banks expect to keep a lid on credit for the next year at least. Despite all the aggressive moves by the Fed in the past ... Having said that, the total expense of a refinance mortgage 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.