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. If you go through a bank they will provide the gift letter form to you to get completed.If someone provides a handwritten letter it is filed away. 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. Most lenders have a template for mortgage gift letters that you can download, fill out, sign and submit back to the lender. As a general rule, lenders will want you to explain any gift you receive that's over half the value of your total household monthly income. Mortgage gift letters tell the lender that money for your loan came from a gift. Lenders require gift letters when necessary. Gifted deposits over £10,000.