How many can you miss and still pass?
There is no national answer, because every state sets its own test length and its own bar. Pick your state and the number appears. The arithmetic is simple, but getting it wrong by one is how people walk in expecting slack they do not have.
Alabama asks 30 questions and you need 24 right, which is 80%. Get 7 wrong and you fail.
The ALEA driver manual sets no waiting period before a retest, but the $5 exam fee applies again to every attempt.
ALEA Alabama Driver Manual (December 2024 edition), Knowledge Test section does not publish the format where we could confirm it, so treat these numbers as our best information and check with the agency.
A short test is not a soft test
People assume fewer questions means an easier ride. It is usually the opposite. The figure that matters is how many mistakes you are allowed, and a short test at a high percentage leaves very little room.
At the tight end, Maryland allows just 3 wrong answers out of 25. At the other end, Florida allows 10 out of 50. Same exam in name, very different margins. Both figures were checked against the agencies on 2026-08-27.
One more wrinkle worth knowing: a handful of states apply a second bar inside the test. New York requires 2 of 4 road sign questions correct whatever your overall score is, so a technically passing total can still fail. Virginia goes further and asks its 10 road sign questions first: every one has to be right before you may attempt the general questions at all. Our practice tests enforce those rules rather than mentioning them as trivia.
What to do with the number
Treat your allowance as a buffer for nerves, not a target. Aim to sit the exam simulator and finish comfortably clear of the line three times running. If you are scraping past with one to spare, you are one bad morning away from a retake.
See the full table of question counts by state or pick your state and start practising.