To pay the use tax, you will need to file a use tax return with the California Department of Tax and Fee Administration (CDTFA). You can file the return online or by mail. When you file the return, you will need to include the following information:
* Your name and address
* The date of purchase
* The purchase price of the car
* The make, model, and year of the car
* The VIN number of the car
* The amount of use tax you owe
You will also need to include a copy of the bill of sale or other proof of purchase.
If you do not pay the use tax, you may be subject to penalties and interest.