It states how much you're getting and from whom. A short letter like this sample gift letter will cover all of the requirements your lender needs.What is a gift letter? A gift letter is a document that certifies the funds you're receiving for your down payment are a gift, not a loan. A gift letter for a mortgage is a document that confirms that a financial gift has been given to a borrower to help them with the down payment or closing costs. Use our mortgage gift letter template and write yours. It is likely that a gift letter will be required. We are applying for a mortgage and our source of downpayment is profits from our small business. State the gift amount clearly. This ensures transparency.