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. Hi, I'm new to this but need advice.My parents have given me and my brother a substantial cash 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. 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. Encyclical Letter Laudato si' of the Holy Father Francis on care for our common home (24 May 2015) Plan on two weeks for letter delivery, so time letters to arrive before graduation. Save the Children is a leading humanitarian organization for children.