You can typically miss 15 to 20 points on a written test and still pass, depending on your state — but the driving portion has no point system at all
The written knowledge test and the behind-the-wheel driving test work completely differently. On the written exam, most states use a percentage-based passing score: you need to get roughly 80 percent of the questions right, which means you can miss about 15 to 20 questions out of 100, depending on the total number of questions on your test. Your state's DMV publishes the exact passing percentage in their driver's manual.
The driving test, by contrast, doesn't use points. An examiner watches you handle the car and marks down critical errors — things like failing to stop at a red light, hitting a curb, or not checking your mirrors. A single critical error can result in an automatic fail. You also accumulate minor errors for things like hesitating too long or gripping the wheel incorrectly, and too many minor errors add up to a fail. The examiner decides pass or fail based on overall performance, not a mathematical score.
Key Takeaways
- Written tests in most states require an 80 percent passing score, meaning you can miss roughly 15 to 20 questions depending on how many total questions appear on your test.
- The driving test uses critical errors and minor errors, not points — one critical error like running a red light usually means an automatic fail.
- Your state's DMV website or driver's manual lists the exact passing score for the written test and the specific errors that result in automatic failure on the road test.
- If you fail either portion, you can retake it after a waiting period that varies by state, usually between one day and two weeks.
How the written test scoring works
The written test is straightforward math. If your state's test has 50 questions and requires 80 percent to pass, you need to answer 40 questions correctly — meaning you can miss 10. If the test has 100 questions, you can miss 20. Some states use slightly different thresholds: a few require 75 percent, which gives you a little more room to miss questions, while others require 85 percent, which is tighter.
You find the exact passing percentage and total number of questions in your state's driver's manual, which the DMV provides free online or in print at their office. The manual also contains the actual questions or question types you'll see, so you can study the real material rather than guessing what might appear. Most people study the manual, take practice tests online, and retake the written exam if they fail — there's no penalty for retaking it other than the fee and the time.
How the driving test scoring works
The examiner uses two categories: critical errors and minor errors. A critical error is something that creates when ready danger or breaks a traffic law — running a red light, failing to stop at a stop sign, hitting a parked car, driving on the wrong side of the road, or not yielding when required. One critical error ends the test with a fail. You don't get a second chance on the same drive.
Minor errors are smaller mistakes: rolling slightly past a stop line, hesitating too long before turning, gripping the wheel in the wrong position, or not signaling early enough. You can make a few minor errors and still pass, but the exact number varies by state and examiner. If you accumulate too many — typically five to ten, depending on the state — the examiner will fail you. The examiner also has discretion to fail you if your overall performance shows you're not ready to drive safely, even if you haven't hit a specific error limit.
What counts as a critical error on the road test
Critical errors are the things that would get you a ticket or cause a crash in real driving. Running a red light or stop sign is automatic fail. Failing to yield to oncoming traffic, pedestrians, or other vehicles is automatic fail. Hitting anything — a curb, a parked car, a cone in the test course — is automatic fail. Driving on the wrong side of the road or in the wrong lane is automatic fail. Speeding significantly above the limit is automatic fail in most states.
Some states also include things like driving with one hand off the wheel for too long, not checking mirrors before changing lanes, or not using the turn signal at all. Your state's DMV publishes the full list of critical errors in the testing guidelines, which you can find on their website or ask about when you schedule your test. Knowing these in advance means you can focus your practice on avoiding them specifically.
Minor errors and how they add up
Minor errors don't end the test when ready, but they count against you. Examples include stopping a few feet past the stop line instead of right at it, hesitating for a moment before proceeding when it's safe, not adjusting your mirrors before starting, gripping the wheel at 9 and 3 o'clock instead of 10 and 2, or signaling just slightly late. These are things that show you're still learning but not things that create when ready danger.
The examiner keeps a running tally. If you make five minor errors in one state's test, you might still pass. In another state, seven minor errors might be the limit. Some examiners are stricter than others, and some routes have more opportunities to make minor errors than others — a test route with many turns and intersections gives you more chances to signal late or hesitate. The best strategy is to drive as cleanly as possible and assume that every small mistake counts.
Retaking the test after you fail
If you fail the written test, you can usually retake it after a short waiting period — often just one day, sometimes up to a week depending on your state. You pay the test fee again and study the areas where you struggled. The questions are different each time, so studying the manual and taking practice tests online helps more than memorizing specific answers.
If you fail the driving test, the waiting period is usually longer, often one to two weeks. The examiner or the DMV office will tell you what errors caused the fail, which tells you what to practice. If you failed for critical errors, you need to drill those specific skills — stopping at signs, checking mirrors, yielding correctly — with a licensed driver before you test again. If you failed for too many minor errors, you need to smooth out your overall technique and build confidence.
How to prepare to minimize errors
For the written test, get your state's official driver's manual and read it cover to cover. Take the practice tests on your state's DMV website — these are often the actual questions or very similar to them. Focus on the areas where you score lowest. Most people pass the written test on their first try if they study the manual, because the test covers only what's in it.
For the driving test, practice with a licensed adult in the passenger seat on the kinds of roads and intersections you'll encounter during the test. Ask your instructor or the DMV what the test route looks like, or drive it yourself beforehand to get familiar with it. Practice stopping smoothly at stop signs, checking mirrors before every lane change, signaling well in advance, and staying calm. Many people fail the driving test not because they can't drive, but because they're nervous and make careless mistakes. Familiarity with the route and the examiner's car reduces anxiety.
Frequently Asked Questions
Can I retake the written test the same day if I fail?
Most states require you to wait at least one day before retaking the written test, though some allow you to retake it the same day if you fail. Call your local DMV office or check their website to confirm the waiting period in your state. You'll pay the test fee again.
What happens if I fail the driving test twice?
You can retake it again after another waiting period. There's no limit to how many times you can take the driving test, though some states may require you to take a driver education course or get additional instruction before your third attempt. Check your state's rules.
Do I have to take the written test again if I only failed the driving test?
No. The written and driving tests are separate. If you pass the written test but fail the driving test, you only retake the driving portion. You don't need to pass the written test again unless your state's rules say your written test result expires after a certain time.
Is the driving test route the same for everyone?
The route varies depending on which DMV office you test at and sometimes which examiner you get. Some offices have multiple standard routes they rotate through. You can ask your DMV office what the typical test route looks like or if you can drive it beforehand to practice.
What if the examiner seems unfair or makes a mistake scoring my test?
If you believe the examiner made an error, ask for a copy of your test results and the specific errors marked. You can contact your DMV office to file a complaint or request a retest with a different examiner. Keep your test paperwork so you have documentation of what happened.