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.A gift letter is a note from the donor that says you don't have to repay the money. 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. Second, the reason your bank is asking you to provide a gift letter Is that the funds must be verified. As noted earlier, your bank should provide a gift letter template for you to complete. Gift money for USDA loans can come from any donor who doesn't have an interest in the transaction. "A gift letter describes who the person is, their relationship with the borrower, and how they will give the gift check, cash, or transfer. A gift letter is a document stating that any money received from family or friends is a cash gift and not a loan.