The mortgage payoff calculator helps you find out. Early Payoff Calculator.Find the additional payment required to pay off your loan early. A payoff request can be created and mailed for free. How long does it take to obtain a payoff? A mortgage payoff letter can come in two forms. One form tells borrowers the remaining principal amount and interest they have to pay to close out the loan. We will need to order your payoffs from your current lender. I'm talking about what are the practical next steps you've paid off your mortgage now you've got to do what as your very next step. • Request for Mortgage Payoff Letter(s) (if applicable): Must be filled out completely.