A tempting gap is not automatically a safe overtaking opportunity. On a busy North London road, a country lane, or a dual carriageway, good drivers do not overtake simply because they can. They overtake only when they can see clearly, plan ahead and return safely. So, what are the rules for overtaking when driving in the UK? In most situations, you should overtake only when it is legal, necessary and safe to do so without causing another road user to brake, swerve or feel pressured.

For learner drivers, overtaking can feel like one of the biggest decisions behind the wheel. That is because it requires observation, judgement, speed control and patience all at once. The safest choice is often to wait. Choosing not to overtake when the view, space or timing is uncertain is confident driving, not hesitation.

What are the rules for overtaking when driving in the UK?

The general rule is that you should overtake on the right. Before committing, you need enough clear road ahead to pass the vehicle, leave a safe gap and return to your normal road position without cutting anyone up.

You must never exceed the speed limit to complete an overtake. Being stuck behind a slower vehicle can be frustrating, particularly when you are running late, but speed limits still apply. If the overtake cannot be completed legally and comfortably, it is not an overtake to take.

The Highway Code also expects you to avoid overtaking where it could bring you into conflict with other road users. This includes situations where the road ahead is unclear, oncoming traffic is approaching, or someone may emerge from a side road, driveway or lay-by. Look beyond the vehicle in front of you. A clear space immediately ahead is not enough if the road bends, dips or narrows shortly afterwards.

On a single-carriageway road, the decision depends on far more than whether there is an oncoming car in sight. Ask yourself whether you can see far enough ahead, whether the vehicle you are passing may turn right, and whether there is enough room to return to your lane with a proper safety margin. If you have to force your way back in, the gap was never big enough.

Where you should not overtake

There are places where overtaking is particularly dangerous, and often prohibited. Avoid it on the approach to a junction, where the road narrows, on bends, near the brow of a hill, and where your view is restricted by parked vehicles, trees, signs or large vehicles.

You should not overtake a moving vehicle nearest to a pedestrian crossing, especially at zebra crossings, pelican crossings and other controlled crossings. Someone could step out from behind the vehicle you are passing, and your view may be blocked until it is too late. The zig-zag lines near crossings are there to protect pedestrians and must be treated seriously.

Be especially cautious near schools, bus stops and busy high streets. A bus may pull away, a pedestrian may cross between parked cars, or a cyclist may need to move out to avoid a drain cover or opening car door. Even where an overtake is technically legal, it may not be sensible.

Road markings matter too. If there is a solid white line on your side of the road, you must not cross or straddle it except in limited circumstances set out in the Highway Code. These can include passing a stationary vehicle, or passing a pedal cycle, horse or road maintenance vehicle travelling at 10 mph or less, when it is safe to do so. Do not assume a slow-moving car gives you the same permission.

How to overtake safely

A safe overtake starts well before you move out. First, assess whether overtaking is genuinely needed. If the vehicle ahead is likely to turn off, pull into a lay-by or reach a dual carriageway shortly, waiting may be the better option.

When an overtake is appropriate, use a calm, planned routine. Check your interior mirror and right door mirror, assess the road ahead and behind, and move into a suitable position without tailgating. Keeping a proper following distance gives you a better view and more time to decide.

Signal right only when it will help other road users understand your intention. Then check your mirrors again and look for anyone who may already be overtaking you. A motorcyclist can appear quickly, particularly on faster roads, and another driver may have begun their own manoeuvre before you signal.

Accelerate positively within the speed limit and pass with room to spare. Do not linger alongside the other vehicle. Once you can see it clearly in your interior mirror, check your mirrors again, signal left if needed and return smoothly to the left-hand lane. Avoid cutting in sharply. The driver you have passed should not need to brake because of your manoeuvre.

In a manual car, the right gear matters. You need enough power to make progress without staring at the gear lever or over-revving the engine. This is something worth practising with an instructor in quieter conditions before attempting overtakes on faster roads. Automatic drivers still need to plan their acceleration and should not rely on the car to make a poor gap safe.

Passing cyclists, horses and vulnerable road users

Overtaking a cyclist is not the same as overtaking a car. Give cyclists at least 1.5 metres of space when passing at speeds of up to 30 mph, and allow more room at higher speeds. If the road is too narrow to leave that space, wait behind them.

Do not squeeze past a cyclist because traffic is building behind you. They may need to move around potholes, parked cars or poor road surfaces, and side winds can affect their position. Treat the overtake as you would when passing a wider vehicle: wait for a clear, safe opportunity.

Give horses and riders plenty of room too. Pass slowly, ideally at no more than 10 mph, and avoid sounding the horn or revving the engine. A startled horse can move unpredictably, so patience is essential.

Overtaking on dual carriageways and motorways

On dual carriageways and motorways, keep left unless you are overtaking. The right-hand lanes are for passing, not for continuous driving. Once you have safely passed, return to the left when there is a suitable gap.

Undertaking, which means passing on the left, is not a manoeuvre to plan as a shortcut. In slow-moving, congested traffic, vehicles may be travelling in lanes at different speeds and traffic in the left lane can sometimes move faster. However, weaving through lanes to gain an advantage is dangerous and can lead to careless driving.

Never move left and accelerate just to pass someone who is incorrectly staying in a middle or outside lane. Keep your distance, stay calm and make your own driving safe. Their poor lane discipline does not justify yours.

If another driver is overtaking you

When someone starts to overtake, maintain a steady speed and position. Do not accelerate to stop them getting past, even if you think their judgement is poor. Increasing your speed makes the situation more dangerous and may leave them with nowhere to go.

Keep your steering smooth and give them space to return when safe. There is no need to brake sharply or pull towards the kerb, but being predictable helps everyone. If their manoeuvre looks unsafe, ease off gently if necessary and prioritise avoiding a collision over proving a point.

How overtaking is assessed on the driving test

You are not expected to perform an overtake during every practical test. In many urban test areas, there may be no safe or suitable opportunity. An examiner will not expect you to take risks just to demonstrate the manoeuvre.

If an opportunity does arise, the examiner will be looking for sound judgement. Have you checked properly? Is the road clear? Have you used appropriate speed and road position? Did you give the other road user enough room? Most importantly, did you choose to wait when the situation was uncertain?

A dangerous or poorly judged overtake can result in a serious or dangerous fault. But holding back behind a slower vehicle when visibility is limited is usually the right decision. At CJL Driving School, instructors help learners build this judgement gradually, so it becomes a calm decision rather than a rushed one.

The best overtakes are often the least dramatic: planned early, completed smoothly and never forced. Give yourself time, trust what you can genuinely see, and remember that arriving a minute later is always better than creating a risk you cannot take back.