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. Learn how to create a mortgage gift letter template to ensure a smooth homebuying process with your gifted funds with 6 samples.A mortgage gift letter is a document that helps satisfy the requirement that a borrower's down payment funds come from legitimate sources. 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 must contain the donor's name, the gift's value, confirmation that the gift is not to be repaid, and the donor's signature. A short letter like this sample gift letter will cover all of the requirements your lender needs. A gift letter is an important, formal, legal piece of documentation that can help explain that a (usually rather large) sum of money was gifted to you. To use gift funds, you must provide a gift letter proving the money is not a loan. 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. The donor's name, address and phone number.