The gift tax is the responsibility of the eligible person receiving the motor vehicle. 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.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. While Texas does not impose a state gift tax, federal gift tax regulations apply. 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. Use a Texas Gift Deed to give real estate to another person or an entity. Gifting real estate among spouses or family members is fairly common. Use Form 709 to report: Transfers subject to the federal gift and certain generation-skipping transfer (GST) taxes. If you give people a lot of money or property, you might have to pay a federal gift tax. But most gifts are not subject to the gift tax.