How Many Mistakes Are You Allowed on the UK Driving Test?

#The three fault grades

Every fault recorded by a DVSA examiner falls into one of three categories: driving (often called minor), serious, or dangerous. The grade decides whether the fault costs you the test or just adds to your tally. The pass mark is up to 15 driving faults with zero serious and zero dangerous faults.

A driving fault is a mistake that did not affect the safety of you, the examiner, or anyone else on the road. A serious fault is something that could have led to an incident. A dangerous fault is something that actually involved another road user, the examiner having to intervene, or genuine risk of harm. The difference between a serious and a dangerous fault is often whether the examiner had to brake or grab the wheel.

#What counts as a driving (minor) fault

These are the small slips that anyone might make on a normal drive. Examples include a slightly late mirror check before signalling, a small drift in lane position on a quiet road, or a hesitation at a roundabout when there was a safe gap.

You are allowed up to 15 of these. The catch is that repeating the same minor fault four or five times will usually be promoted to a serious fault, because it shows a pattern of poor driving rather than a one-off slip. Examiners watch for repetition.

#What counts as a serious fault

A serious fault is anything that creates the potential for danger, even if nothing actually happened. Pulling out at a junction without looking properly is serious whether or not a car was coming. Stalling on a roundabout in a way that blocks traffic is serious. Mounting the kerb on a left turn is serious if anyone could have been on the pavement.

The full list is long but the principle is consistent: would a careful, experienced driver have considered that move risky? If yes, it is a serious fault and the test is failed at that moment, even if you continue driving for the remaining 30 minutes.

#What counts as a dangerous fault

A dangerous fault involves actual danger to a person or property. It usually means the examiner had to use the dual controls, give a verbal instruction to stop, or grab the steering wheel. Driving through a red light when other traffic is moving is dangerous. Pulling out into the path of an oncoming car is dangerous.

Dangerous faults are rare on tests because most learners are cautious enough to avoid them, but they do happen, often during manoeuvres where awareness slips.

#How examiners actually mark

Examiners use a paper or tablet-based marking sheet with all 27 fault categories listed. They tick a fault in real time as they see it, and grade it as they go. They do not stop the test when you collect a serious or dangerous fault, because the test is also a coaching opportunity and a way to see how you handle the rest of the drive.

This is why people sometimes complete a full 40-minute test and are still surprised at the fail. The test continued, but the result was decided 15 minutes in. The opposite happens too: people convinced they have failed often find out they only collected minor faults.

#The 15-fault myth: what actually fails you

A common misconception is that any fault is a problem. In reality, around 60% of UK candidates who pass do so with at least one driving fault on the sheet, and many pass with five or six. The examiner is looking for safe, controlled driving, not perfection.

What actually fails most candidates is a single serious fault, not a pile of minors. The classic examples: a missed observation at a junction, a wrong-side overtake on a parked car without checking, or an emergency-stop manoeuvre done with poor cadence. One mistake, test over.

#How fault grading varies between examiners

Examiners are trained to a single standard, and senior DVSA staff regularly check their marking by sitting in on tests. The variation between examiners is much smaller than learner forums suggest. What does vary is the routes a centre uses and the time-of-day traffic, which is why pass rates differ between centres rather than between examiners. Compare your local centre at our pass rate by city page or browse the easiest centres ranking.

#Common faults that get upgraded from minor to serious

• Missing a single mirror check is a minor. Missing four or five turns the pattern into a serious fault.
• A slight position drift is a minor. Repeated lane wander becomes a serious control fault.
• One late signal is a minor. A pattern of late signals becomes a serious response fault.
• A small steering correction is a minor. Recurrent over-correction becomes a serious control issue.
• Hesitating once at a roundabout is a minor. Refusing several safe gaps becomes a serious progress fault.

#How to use the rules to drive a calmer test

Knowing you can collect a few minors changes your mental state during the test. If you make a small mistake, do not let it spiral into bigger ones. Drivers who panic after one slip often pile up more faults trying to compensate. Drive the next minute as if it were the first minute. The marking sheet is forgiving of human errors, it is unforgiving of unsafe driving.

Our guide on driving test on test day covers how to keep your composure if something goes wrong early.

#After the test: reading your fault sheet

The examiner shows you the marking sheet at the end and runs through every fault. Pass or fail, this debrief is where you learn what actually happened. Do not skim it. Take a photo if allowed. The categories that came up are the ones to drill before any retake.

If you failed, our rebooking after a fail guide walks through the 10-working-day waiting period and how to use that time well.