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 mortgage gift letter is a statement that assures your lender the money that came into your account is a gift and not a loan.Second, the reason your bank is asking you to provide a gift letter Is that the funds must be verified. A gift letter is a piece of legal, written correspondence explicitly stating that money received isn't expected to be repaid. Before you withdraw: Check your total credits. Please note: Some forms are not electronic forms. You must complete these forms and print them to be returned to the bank. A gift letter is a note from a donor to your lender regarding cash funds for your mortgage down payment. A mortgage gift letter must include the donor's name and information, the gift amount, and other details about the home and gift. If you are an international student, you do not need to fill out the FAFSA.