Mortgage & home-buying documents

Mortgage documents are the paper trail an underwriter uses to confirm that you can afford a home and that the money behind the purchase is what you say it is. Lenders verify income, assets, employment, and the source of your down payment, and almost every piece of that verification is a document. One of the most common — and most misunderstood — is the gift letter: a signed statement that money helping with the down payment is a true gift, not a loan you will have to repay. Because a hidden loan would change your debt picture, lenders treat undocumented deposits skeptically, and a clean gift letter is what clears them.

If a relative or other allowed donor helps with your down payment or closing costs, the lender will see the deposit and ask where it came from. A gift letter answers that. It typically has to state the donor's name and relationship to you, the dollar amount, the date, the property address, and — critically — that the funds are a gift with no expectation of repayment. Lenders following Fannie Mae's rules generally require gift funds for a principal residence to come from an acceptable donor (commonly a family member or, in defined cases, someone with a clearly documented relationship), and they will usually want to trace the money: the donor's withdrawal and your matching deposit, so the paper trail is unbroken.

Prepare the gift letter and the supporting bank records together, because the letter alone is rarely enough — the lender wants to see the funds actually moved as described. Have the donor sign it, keep the amounts and dates consistent with the statements, and use the property address the loan is for. A complete gift letter usually contains a short, predictable set of facts, so it helps to gather them before you draft it:

• The donor's full name, address, and relationship to you (for example, parent or grandparent).
• The exact gift amount and the date the funds were or will be transferred.
• The address of the property the loan is for.
• A clear statement that the funds are a gift with no repayment expected, signed by the donor.
• Supporting records that trace the money — the donor's withdrawal and your matching deposit.

Different loan programs have their own donor and documentation rules, so confirm what your specific lender and program require before the money changes hands. Conventional loans follow Fannie Mae and Freddie Mac guidelines, which define who counts as an acceptable donor and how gifts are sourced and seasoned; FHA and VA loans have their own gift-fund requirements. The amount of the gift relative to the purchase price, whether the property is a primary residence or a second home, and how recently the funds landed in your account can all change what the underwriter asks for. A gift deposited and documented the wrong way can stall an underwriting file even when the money is entirely legitimate, so it pays to ask the lender exactly what they need before the donor sends anything.

The mistakes that hold up closings are usually about traceability and timing. Avoid cash gifts and round-number deposits that cannot be tied to a documented withdrawal — underwriters flag deposits they cannot source. Keep the gift, the letter, and the bank records aligned to the penny and the date. And never paper over a loan as a gift: signing that repayable money is a gift misstates a material fact on a mortgage application. This guide explains the general requirements, not advice for your situation, so confirm the specifics with your lender or a qualified professional. More home-buying document guides are on the way.