Do I need a bill of sale to sell my car in New Jersey?

A bill of sale is not legally required in New Jersey for private vehicle sales, but it is strongly recommended. It serves as written proof of the transaction for both parties, documents the sale price (which affects sales tax the buyer pays), and provides a record of the date and terms of the sale. A bill of sale should include the vehicle's year, make, model, VIN, sale price, odometer reading, and the signatures of both buyer and seller. Having one protects you from liability if the buyer gets into an accident before completing the title transfer.