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. Mortgage Gift letter is what the donor of the gift writes to the lender stating that he has offered a gift of money to the home buyer. Mortgage gift letters tell the lender that money for your loan came from a gift. Lenders require gift letters when necessary. You can use gifted funds to make a down payment, but your mortgage lender will want to know some details before they allow you to use it. A gift letter for a mortgage is proof to the lender that money you've been given for your home purchase is a gift, not a loan to be repaid. Such letters state that the money received is not expected to be paid back in any way, shape, or form. A gift letter is a way for lenders to verify that the person giving you money for a mortgage isn't involved in the home purchase.