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. A gift letter for a mortgage shows your lender that you don't need to repay gift money toward your down payment.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. What is included in a gift letter? A mortgage gift letter is a simple but essential document that assures lenders the funds you received are a gift, with no repayment expected. Pin down the specifics of the property in question. Clearly state the property's address, ensuring there's no ambiguity about where the gift funds are intended. A gift letter is a note from a donor to your lender regarding cash funds for your mortgage down payment. Learn about gift letter requirements A short letter like this sample gift letter will cover all of the requirements your lender needs.