Create a Loan Payoff Letter online and download it as a PDF or Word document. Customize and print a blank Loan Payoff Letter for free.A Loan Payoff Letter Request form is a crucial document for anyone looking to understand the full amount they need to pay to clear their loan balance. 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. Include the loan or mortgage number. The revised Form MT-15, Mortgage Recording Tax Return, is now available. How to use this template: 1. Read the background below. 2. This page contains a list of definitions for common mortgage terms.