Among these is the royalty notice for documentaries. This indicates why you will see a «doc tax» when purchasing your vehicle. Doc fees vary from state to state and, as we`ve written before, you`ll never be able to get a dealer to remove a doc tax from their contract, but you can get them to discount a vehicle equal to the fee. Once the car is purchased, this document should contain the following necessary data: According to Trusted Choice, car purchase contracts are often far from error-free, so it is important that you are looking for the most common mistakes that could put you in a much weaker position. All of this is in the contract document. However, before signing, make sure that all the information in the document is correct. Let`s consider what you should pay attention to before signing. Used Car Sales Contract Seller Details Full Name: Address: Postal Code: Phone Number: Buyer Details Full Name: Address: Postal Code: Phone Number: Vehicle Details Manufacturer: Model: Year: Color: License Plate: Current Number of Mileages (confirmed by. . . .