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 gift letter is a document stating that any money received from family or friends is a cash gift and not a loan.A short letter like this sample gift letter will cover all of the requirements your lender needs. 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. What is included in a gift letter? Please complete and route for signatures. This form must be completed before the University can officially accept a proposed gift. What is included in a gift letter? Gift Amount: Specify the exact dollar amount of the gift. A signed Gift instrument such as a gift letter is fine, along with financial documentation to show the legal source of funds from the gift giver.