Affidavit of Motor Vehicle Gift Transfer. The gift tax is the responsibility of the eligible person receiving the motor vehicle.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. Vehicle Registration Forms ; MV-528. Pdf, Instructions to send a certified letter, return receipt requested ; MV-531. 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. Below is a typical gift letter template you can share with donors. Download our free gift letter templates to easily create records of monetary gifts received. Print customizable samples!