Hi, I'm new to this but need advice. My parents have given me and my brother a substantial cash gift.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. Download a gift affidavit form in PDF or Word format to attest to and record the gratuitous and voluntary transfer of a gift. 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. Download the following gift letter template. Then, complete, e-sign, and send it to the lender. 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. Try our free donation request letter templates! Download our standard template or check out our example letters for events, auctions, schools, and more.