Hi, I'm new to this but need advice. My parents have given me and my brother a substantial cash gift.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. A gift letter is a piece of legal, written correspondence explicitly stating that money received isn't expected to be repaid. Massachusetts Gift Affidavit Template. Utilize our Gift Affidavit to officially document the gifting of an item. Edit, sign, and share gifted deposit letter template uk online. No need to install software, just go to DocHub, and sign up instantly and for free. 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 template is actually very simple to write.