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 document that helps satisfy the requirement that a borrower's down payment funds come from legitimate sources.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. 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. Effortlessly transfer ownership with our Vehicle Gift Form. Send mortgage gift letter template via email, link, or fax. You can also download it, export it or print it out. The gift donor may not be a person or entity with an interest in the sale of the property such as the seller, real estate agent, builder, or developer. If their gift is too large, they may have to fill out a gift tax form when filing returns.