You must be at least 21 years old in order to book Budget car rentals in Atlanta. However, even though you are allowed to rent a car if you are 21 thru 24, you will most likely be charged an extra fee of a little less than $30 a day because you are a young renter. You also need a valid driver’s license and a valid credit card in your name. Drivers who are under the age of 25 may not book Budget car rentals in Atlanta with a debit card.