What information should be included in my paidinfull letter? Fill in your contact details, account number and any extra information you want to include in the grey shaded areas.Today's date will be added automatically. This document not only serves as proof of approval but also outlines essential details such as the loan amount, interest rate, and repayment schedule. A loan agreement is a legal document between a creditor who lends money to a borrower that is repaid with interest. Creating a payoff letter is essential to any loan or mortgage repayment process. Our free templates and this guide can help you get started. 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 demand letter is an official notice requesting money, possession of assets, or action on a legal matter.