Download the following gift letter template. Then, complete, e-sign, and send it to the lender.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. 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 short letter like this sample gift letter will cover all of the requirements your lender needs. 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. What should you include in a gift letter? A Monetary Gift Affidavit serves as proof that a cash gift was intended as a genuine gift and not as a trust or loan. A mortgage gift letter is a document that helps satisfy the requirement that a borrower's down payment funds come from legitimate sources. Gifts given for real estate purchases typically do not result in any taxes.