Can I use a car titled to my father as trade-in on new purchase?

Yes, if the title to the car is clear and your father is willing to transfer ownership to the dealership. You will also need to present other required documents, such as a driver's license and insurance card.

Additionally, you may need to pay sales tax and other fees associated with the trade-in. The exact amount will vary depending on your location and the specific dealership you are working with.

It's always a good idea to discuss the exact terms of the trade-in with the dealership in advance to avoid any surprises.