Car purchase invoice is an important basis and voucher for car purchase, and it is a computer six-in-one invoice.

Invoice copy (payment voucher of the car purchase unit), deduction copy (tax deduction voucher of the car purchase unit), tax return copy (retained by the vehicle purchase tax collection unit) and registration copy (retained by the vehicle registration unit), and the remaining two copies are retained by the seller, followed by insurance invoices for vehicle insurance, such as vehicle insurance, compulsory insurance and commercial insurance.