After you get the license plate, do you have no purchase invoice? After the license plate is applied, the owner has no purchase invoice, and the purchase invoice will be stored in the vehicle file. According to the Work Standards for Motor Vehicle Registration: Article 8, the following materials shall be stored in the motor vehicle archives: (1) the original of the Application Form for Motor Vehicle Registration; （2） The original of Motor Vehicle Registration/Transfer in Registration Form; （3） The original of the Motor Vehicle Registration Business Process Record; （4） Copies of the identity certificates of the owner and agent of the motor vehicle; （5） The original or photocopy of the origin certificate of the motor vehicle. Among them, the nationally unified motor vehicle sales invoice, the Notice of Assistance in Implementation and the allocation certificate issued by the state organ must be the original; （6） Original of factory certificate of domestic motor vehicle; Original import certificate of imported motor vehicles; （7） Original copy of tax payment certificate or tax exemption certificate of vehicle purchase tax. At the same time, the Motor Vehicle Registration Work Specification stipulates that: Article 3 The vehicle management office shall establish a computer registration database in accordance with the public security industry standards of the People's Republic of China, the Motor Vehicle Registration Information Database Specification and the Motor Vehicle Registration Information Code, Input the registration information and the number of each post operator into the computer registration system, and print various certificates and forms related to motor vehicle registration according to the registration content of the computer registration system. Article 63 The vehicle management office shall establish motor vehicle archives for each motor vehicle, one for each vehicle. The vehicle archives are classified according to the type of vehicle license plate, and arranged on the shelves from top to bottom and from left to right. It is strictly prohibited to stack the vehicle files. Article 65 The archives of motor vehicles shall be stored in durable paper bags, and the file number shall be the registration number of motor vehicles.