Clearly print or type all information, except signatures. Instructions. The new owner's social security number, taxpayer identification number (TIN), or federal employer identification number (EIN) is required.The New York DMV bill of sale is acceptable as a Proof of Ownership for a vehicle (including all-terrain vehicles (ATV) cars, trucks, and motorcycles) This form serves as a legal record of the sale, gift, or transaction of a motorcycle. A Motorcycle Bill of Sale is a legally binding document that facilitates the official transfer of motorcycle ownership from a seller to a buyer.