Failing the UK practical driving test is more common than most people think, and if you’ve been there, you’re far from alone. What is the reason for failing a driving test? In most cases, it comes down to a handful of repeated, fixable mistakes that examiners see every single day. The good news?? Once you know exactly what they are, you can target them in your lessons and dramatically increase your odds.
In this guide, we cover the top 10 reasons for failure as approved by the DVSA, the difference between fault types, specific pitfalls on London roads and actionable fixes you can use straight away. Whether you are studying for your first attempt or coming back after a fail, this is the only breakdown you need.
How Many People Fail Their Driving Test in the UK?
More than half of all UK learner drivers fail their practical test. According to the latest DVSA data (2024/25), the national pass rate sits at around 48.5%, meaning roughly 51.5% of candidates walk away with a fail sheet. In 2025 alone, almost 976,000 learners sat the test but fewer than 477,000 passed.
That’s not a comforting statistic if you’ve got a test coming up. But here’s the thing: most of those failures come down to the same small group of mistakes. The DVSA publishes its fault data every year, and the top 10 reasons barely change. That pattern tells you something useful these are learnable, correctable errors.
In London, the picture is even starker. Pass rates at some test centres drop well below the national average. Chingford sits at just 36.5%, Barking is similarly low, and Belvedere comes in at around 38%. By contrast, Sidcup passes 59% of candidates over 20 percentage points higher than the hardest London centres.
Understanding why people fail is the first step to making sure you don’t become part of the statistic.
What Is the Difference Between a Minor, Serious and Dangerous Fault?
Before we get into the specific reasons people fail, it’s worth understanding how driving faults are actually categorised. There are three types: a driving fault (minor), a serious fault, and a dangerous fault. You can collect up to 15 minor faults and still pass. One serious or dangerous fault is an automatic fail no exceptions.
Here’s how the DVSA defines each:
- Driving fault (minor): An error that doesn’t immediately endanger others. These accumulate, and 16 or more means a fail. Three or more minors in the same category can also be reclassified as a serious fault if the examiner judges it shows a pattern of poor habit.
- Serious fault: An error that has the potential to cause danger, even if no one was actually put at risk in that moment. This results in an immediate fail.
- Dangerous fault: An error where actual danger was caused either the examiner had to intervene or another road user had to react. Always an immediate fail.
The same driving mistake can fall into different categories depending on context. Stalling on a quiet side street is usually a minor. Stalling halfway across a busy junction is likely serious. Stalling and rolling into oncoming traffic is dangerous. The distinction matters, and your examiner applies professional judgement in real time.
Top 10 Reasons for Failing the Practical Test in 2026
The DVSA publishes annual failure data covering all UK test centres. The list below reflects the top 10 for the 2024/25 financial year and as the DVSA’s own records show, these reasons have stayed almost identical for five consecutive years. That consistency confirms these aren’t random errors. They’re deeply ingrained habits that most learners develop without realising.
1. Not Making Effective Observations at Junctions
Poor junction observation is the single biggest reason for failing the UK driving test, according to DVSA data and it’s held that top spot for years. Ineffective observation was a factor in 47% of all road collisions in the UK in 2025, which is exactly why examiners take it so seriously.
This fault covers a range of mistakes: looking too late before pulling out, misjudging the speed of an approaching vehicle, not checking for cyclists at the left, or entering a roundabout when a car is approaching from the right. The common thread is that the candidate looked, but didn’t actually process what they saw.
A practical fix is the “creep and peep” technique at restricted-view junctions. Edge forward slowly until you can see clearly in both directions, pause, check again, then move if it’s safe. Make your head turns visible and deliberate examiners can only credit what they can see you doing.
2. Not Using Mirrors Correctly When Changing Direction
This is the second most common fault on UK practical tests. Failing to check mirrors before signalling, changing lanes, turning, or exiting a roundabout puts other road users at risk and tells the examiner your situational awareness isn’t where it needs to be.
The Mirror, Signal, Manoeuvre (MSM) routine exists precisely to solve this. It should feel automatic by the time you sit your test not something you consciously remember to do. The most frequent version of this fault is not checking the exterior mirror when exiting a roundabout, which can cause a vehicle in the next lane to slow or swerve.
Think of it this way: your mirrors are a live feed of what’s happening around you, and every time you change direction, that feed needs refreshing. If you’re only glancing in the interior mirror and skipping the exterior, you’re leaving a significant blind spot unchecked.
3. Not Having Proper Control of the Steering
Steering control covers everything from crossing hands on the wheel to mounting the kerb. It accounts for around 15% of all test faults. The DVSA specifically flags steering too late on bends, oversteering on tight turns, and losing control during manoeuvres as the most common forms of this fault.
The pull-push steering technique taught in your lessons is there for a reason it keeps both hands near the wheel at all times and reduces the risk of losing control mid-turn. Crossing your arms won’t automatically fail you, but it’s marked as a fault because it compromises your ability to react quickly.
The errors that show up most in steering faults are tight right turns into minor roads (steering too late) and repeated kerb contact when pulling up on the left. Both are fixable with deliberate, slow practice.
4. Incorrect Road Positioning When Turning Right at Junctions
Positioning when turning right is the fourth most common reason for failing. This includes waiting too far left (blocking following traffic), approaching a right turn in the wrong lane, or cutting across the centre line during the turn itself.
The correct position when waiting to turn right is just left of the centre line, with your wheels pointing straight ahead. If a vehicle hits you from behind in that position, your car won’t be pushed into oncoming traffic. Once it’s safe to turn, take the corner tightly enough not to cut into the wrong lane on the road you’re joining.
On one-way streets, many learner drivers make the mistake of sitting in the left-hand lane when turning right forgetting that either lane is valid on a one-way road. Read the road markings well in advance and position early.
5. Not Moving Off Safely
Moving off safely involves more than just checking the mirrors. You must also check the offside blind spot before pulling away from the kerb, and look for cyclists, pedestrians, and vehicles approaching from behind. Skipping the blind spot check is one of the most common learner driver mistakes.
The Prepare, Observe, Move (POM) routine covers this. Prepare the car (get into gear, find the bite point), observe (full 360° check including blind spot), then move only when safe. On a hill start, keep the handbrake on until you’ve found the bite point rolling back at a junction is a serious fault.
A mistake many candidates make after the emergency stop is pulling away without rear observations. You’ve been stationary in the middle of the road, and traffic has built up behind you. Check properly before moving.
6. Not Responding Appropriately to Traffic Lights
A three-column infographic showing driving fault types. Column 1: “Minor” in green. Column 2: “Serious” in amber. Column 3: “Dangerous” in red. Each column has 2–3 short bullet examples below. Clean flat design, white background, bold headers, no photos.
The most misunderstood rule here is the amber light. You must stop at amber unless stopping would be unsafe if you’re already past the point of no return, continue. Candidates who brake hard unnecessarily at amber often cause the vehicle behind to react sharply, which examiners note.
At green filter arrows, many learners wait even when the junction is clear. If the filter is showing and the way is safe, move. Excessive hesitancy reads as poor judgement, not caution.
7. Ignoring Road Signs and Speed Limits
Driving in a 20 mph zone at 30 mph, missing a “No Entry” sign, or entering a bus lane during restricted hours are all serious faults. Speed awareness on UK roads requires constant attention, limits change frequently, and 20 mph zones are increasingly common in urban areas, especially near schools.
A common misconception is that driving slowly is always safer in the eyes of the examiner. It isn’t. Driving significantly under the posted limit without reason is as problematic as exceeding it. The DVSA expects candidates to drive at an appropriate speed for the road and conditions.
Watch for changes at the start of new road sections, and look for repeater signs in 20 and 40 mph zones. Unlike 30 mph (the national default in built-up areas), those zones display repeater signs at intervals make sure you register them.
8. Poor Reverse Parking or Bay Parking Control
Reverse parking whether parallel or bay parking is a mandatory manoeuvre element of the UK practical test. Taking too many attempts, ending up with wheels on the pavement, or finishing outside the bay lines are all faults. Speed is the key: the slower you go, the more time you have to correct.
The most common error in parallel parking is swinging the rear of the car too wide before straightening up, which puts it into the path of following traffic. Keep your reference points consistent and practise on the same type of road you’ll be tested on.
For bay parking, look for your reference points on both sides of the bay before committing. If you’re off-centre, use small corrections early rather than large corrections late.
9. Stalling or Poor Vehicle Control When Moving Off
Usually a single cubicle in a safe place is a minor fault. Repeated stalling or stalling in a dangerous place such as a busy junction or a pedestrian crossing is likely to be recorded as a serious fault. Most candidates underestimate the skill of finding and maintaining the clutch bite point.
If you stall, keep calm and do this: handbrake on, neutral, restart, ready to move, then reassess before pulling away. It is the haste of the restart that turns a recoverable moment into a compounded fault.
Specifically, on hill starts, the pressure to get going fast is a common cause of stalling. Allow yourself time to apply the gas a little bit higher than normal, find the bite point, release the handbrake and then fully release the clutch.
10. Test Day Nerves Affecting Your Performance
Test anxiety is an underrated cause of failure, arguably more than any one driving skill. Nerves affect decision making, cause hesitancy at junctions and roundabouts and create the sort of micro-panics that turn a manageable situation into a serious fault.
The best way is to do a mock test in real conditions. Ask your instructor to do at least two full mock tests in the weeks leading up to your test, on actual test routes, with your instructor sitting silently and marking faults as an examiner would. Knowing the format helps a lot to reduce anxiety.
On the day itself: eat a good meal before you go, arrive at the test centre early enough to settle yourself, and remember that the examiner is not looking for perfection. They expect a few errors. They’re checking if you’re a safe, competent driver, not a robotically precise one.
Common Mistakes Specific to London Driving Tests
London roads are genuinely different from the rest of the UK. As a learner, you’re not just preparing for the test, you’re preparing for some of the most complex urban driving conditions in the country. Understanding what is the reason for failing a driving test specifically in London can give you a real edge.
Bus Lanes, Box Junctions, and Road Markings
London has an extensive network of bus lanes, many of which are operational 24 hours a day. Driving in a bus lane during restricted hours is a serious fault. Similarly, stopping inside a yellow box junction when your exit isn’t clear is a serious fault and box junctions are far more common in London than anywhere else in the UK.
Solid white lines, yellow zig-zag lines near schools and pedestrian crossings, and advanced stop lines for cyclists all require precise compliance. These aren’t theoretical hazards they’re on almost every London test route.
Roundabouts and Multi-Lane Junctions
London’s roundabouts include some of the UK’s most complex layouts. Straddling lane markings, entering a roundabout without proper observation, or taking the wrong lane through a multi-exit roundabout are among the top specific causes of serious faults in London.
At centres like Tottenham and Chingford, test routes regularly use large, busy roundabouts where lane discipline and timing are tested simultaneously. Practising on the actual roads of your nearest test centre not just any roads is the most effective preparation you can do.
What Happens If You Fail Your Driving Test?
If you fail your practical test, you must wait a minimum of 10 working days before you can retake it. In practice, due to DVSA booking backlogs, the wait is often much longer averaging around 15 weeks at most London centres as of early 2026.
Your examiner will hand you a DL25 result sheet at the end of the test. This lists every fault recorded during your drive, categorised as minor, serious, or dangerous. Read it carefully with your instructor. It’s your most useful revision tool before the retest.
Don’t rebook immediately. Use the DL25 sheet as a lesson plan. Focus your next block of lessons specifically on the fault categories listed, rather than continuing with general practice. Targeted remedial work is far more efficient.
How to Avoid Failing Your Driving Test: Tips from DVSA-Approved Instructors
At Pharez Driving School, our DVSA-approved instructors work with learners across London every day. The tips below come directly from what we see in lessons and in test debriefs.
1. Make your observations visible.
An examiner can only mark what they can see. A clear, deliberate head turn at a junction carries more weight than a quick eye movement.
2. Use the MSM routine on every single direction change.
Mirror, Signal, Manoeuvre. Not just when it feels necessary every single time. Make it a non-negotiable habit.
3. Practise on your actual test routes.
Knowing the roads you’ll be tested on is a significant advantage. Your instructor should be driving you through the local test routes in your final lessons.
4. Run at least two mock tests.
Full, uninterrupted mock tests with your instructor in examiner mode are the closest thing to the real experience. They reveal what nerves do to your driving in a way that regular lessons don’t.
5. Read road signs in advance, not at the last second.
Speed limit changes, road markings, and junction layouts all require early processing. Developing the habit of reading the road 20–30 seconds ahead changes how calmly you make decisions.
Explore our Pricing Packages at Pharez Driving School to find the right lesson plan for your level whether you’re preparing for a first attempt or targeting a specific weakness before a retest.
Final Thoughts
Understanding what is the reason for failing a driving test is genuinely useful knowledge but only if you act on it. The DVSA’s failure data tells a clear story: the same mistakes trip up thousands of candidates every year, and most of them are entirely correctable with the right preparation.
If you’re based in London and want to build your skills with DVSA-approved instructors who know the local test routes inside out, get in touch with Pharez Driving School. Our team works with learner drivers across East, South, North, West, and Central London, and we’re built around one goal: getting you through your test with genuine road confidence, not just a pass certificate.
Contact us today to book your first lesson or ask about our Pricing Packages.
People Also Ask
What is the No. 1 reason for failing a driving test?
Poor observation at junctions is the number one reason for failing the UK driving test, according to DVSA annual fault data. It has held the top spot consistently for over five years. This includes failing to judge the speed of an approaching vehicle, looking too late, and not checking for cyclists.
The fix is making your junction checks deliberate and visible not a quick glance but a genuine two-direction check, with your head turning enough for the examiner to clearly see you’ve looked.
Is 3 minors of the same thing a fail?
Three minors in the same category don’t automatically result in a fail, but the examiner can use professional judgement to reclassify them as a serious fault. If they conclude the repeated error shows a consistent pattern that could eventually lead to danger, they may mark it serious.
There’s no fixed rule that says “3 minors in one area = instant serious fault.” But it’s a strong warning sign. If you find yourself making the same mirror or junction error repeatedly during your test, the examiner is likely watching that category closely.
Is rolling back on a hill start a fail?
Rolling back slightly on a hill start can be a serious fault if it puts another road user at risk. A minor roll a few centimetres on a quiet road may be recorded as a driving fault (minor) at the examiner’s discretion, particularly if it’s a one-off and no danger was created.
To prevent it entirely, hold the handbrake on until you’ve confirmed your bite point, then release it as you begin to move forward. Never release the handbrake before you’re ready to move.
What are instant fails on a UK driving test?
Any single serious or dangerous fault results in an immediate fail, regardless of how well you drove for the rest of the test. Common instant fails include: running a red light, emerging from a junction into the path of another vehicle, failing a blind spot check when moving off, and the examiner having to physically intervene.
You can also fail by accumulating 16 or more minor faults. Failing an eyesight check at the start also results in your test not proceeding at all.
Is hitting the kerb an instant fail?
Hitting the kerb is not automatically an instant fail, but the severity of the incident determines how it’s recorded. A gentle touch during a manoeuvre is usually a minor fault. Mounting the kerb where the tyre rides up onto the pavement is typically a serious fault. If a pedestrian was nearby, it could be recorded as dangerous.
The safest approach is to slow right down during manoeuvres where kerb proximity is high, such as parallel parking and tight left turns. Speed is the enemy of accuracy here.
