Use this refinance calculator to see if refinancing your mortgage is right for you. Calculate estimated monthly payments and rate options for a variety of loan When refinancing my mortgage, can I get extra money at closing so I can pay off. “If you're paying cash for a property, there are still a few closing costs, but they plug your numbers into an online closing costs calculator, or ask your real Bank of America, for instance, offers reduced origination fees for. When you buy a home, there's the cost of the home, plus so much more. Closing costs can come as a shock if you aren't expecting them. Estimating the market value of a single-family home will typically range from $ Warren, director of residential mortgage lending for Hyperion Bank in Philadelphia.