This is a standard form of payoff letter. A 10day payoff refers to the time it takes for your new lender to pay off your old loans during a refinance.A Paid in Full letter will be sent to you approximately 30-45 days after the payoff payment is applied to your loan. 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. What's my Home Worth?