It is possible to rent a car when you are only 18 in the states of Michigan and New York, according to VroomVroomVroom.com. Rental agencies that rent cars to 18-year-olds in these states include Avis, Budget, Dollar, National, Hertz, Enterprise and others.
The minimum age to rent a car throughout the United States is generally 21 years old, except in places where something different is specified by that location, as is the case with Michigan and New York. Fox Rent A Car is a company that rents to 19 years olds who have proper driving credentials. Most car rental companies require customers under the age of 25 to pay a surcharge to rent. As of 2015, this surcharge can be as much as $66 per day for renters between the ages of 18 and 21.