Have you recently settled a debt and are searching for a paid in full letter? Good news, we've got two free sample form letters below.What information should be included in my paidinfull letter? If you ever need to prove that a debt is fully paid and can no longer be collected, then a paidinfull letter can be your best friend. Get paid faster with these 11 effective email templates for collecting your accounts receivable. Streamline your collections process today! We have compiled some past due accounts receivable collection letter templates for your reference. Keep reading to know more about them. You can use the following Cease and Desist letter to debt collectors as a template. As full payment and satisfaction of the Present Debt.