Your Annual Mileage Allowance is the number of miles included as part of a car lease. Car dealers will offer as few miles as they can get away with, perhaps as few as 10,000 per year, or 30,000 over a 3-year lease. But they will go as high as 15,000 miles per year if you negotiate it. You’ll pay anywhere from 10 cents to 50 cents for each additional mile you drive over the limit, so negotiate mileage (and think carefully about how far you drive before you negotiate).