The letter must explain who is gifting the money, where the donor's funds are coming from and the relationship between the donor and the recipient. Gift Letter For Mortgage Template.Your lender might give you a template to follow if you tell them you're using a gift for your down payment. If you go through a bank they will provide the gift letter form to you to get completed. If someone provides a handwritten letter it is filed away. Here's a sample gift letter you can use to prove that the money is truly meant as an outright gift, with no expectation of repayment. A short letter like this sample gift letter will cover all of the requirements your lender needs. Mortgage gift letters tell the lender that money for your loan came from a gift. Lenders require gift letters when necessary. A gift letter is a note from a donor to your lender regarding cash funds for your mortgage down payment.