The mortgage payoff calculator helps you find out. Click on Payments and then click on Request Payoff.Use our library of forms to quickly fill and sign your TREC contracts online. Figure: 7 TAC §155.2(c)(6) PAYOFF STATEMENT FORM If you write to ask how much it costs to pay off your mortgage, the servicer generally has seven business days after receiving your request to answer you. The simplest method is just to make extra payments outside of your normal monthly payments. Make a payment on your Wintrust Mortgage online, learn how to request your payoff quote, and send your mortgage payoff. It tells you the amount due (including interest charges up to a specific date), where to send the money, how to pay, and any additional charges due. In the formula, B stands for the payoff balance due in dollars. L is the total loan amount in dollars.