Go to your town government office with the title of your vehicle if the vehicle is 15 years old or newer (you don't need to bring a title if the vehicle is 16 years old or older) and your current, dated insurance card. Fill out a title application if necessary, and pay all applicable fees. Cost for registration varies. The base registration fee is $25 for regular automobiles, plus the excise tax based on the book value of the vehicle. When you first register you also pay the sales tax -- 5% of bill of sale. To get a title costs $23.