You can take the GMAT up to 8 times total, and no more than five times within 12 months. Taking a GMAT multiple times mostly doesn’t hurt you, but there are some downsides. • Every time you take the GMAT, you’ll have to pay the fee. Aside from canceling scores, most schools can see how many times you’ve taken the GMAT and how you scored. • Most schools will consider the highest score, but some could take an average of scores. • Taking the GMAT twice is fairly common and wouldn't be looked down on, but I would take it as few times as possible. • Only take the GMAT when you feel fully prepared and that there is a chance your score will improve.