First you need to know what the payoff figure is. There's probably an online form.We make getting a mortgage easier. Our online process is streamlined to get you into your home sooner! Fill out the reverse side of a (tax bill) payment stub. OR; Send us a letter with required information listed below. 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. It's time to make your money work for you! Please be sure to fill in all fields to ensure a proper response.