Using a mobile phone while driving is one of the most common road offences in the UK. Many drivers think they understand the rules — but the law has changed in recent years, and it is now much stricter than before.
If you drive in the UK, it is important to know exactly what is legal, what is not, and what could happen if you get it wrong. This guide explains the law in clear, simple terms so you can understand how it applies to you.
What Does the Law Say?
Under UK law, you must always remain in proper control of your vehicle. Rule 150 of the The Highway Code states that you must exercise proper control of your vehicle at all times.
It has been illegal to use a hand-held mobile phone while driving since December 2003. However, the law was strengthened on 25 March 2022. Now, using or even holding a hand-held phone while driving for almost any purpose is an offence.
This applies if:
- You are driving.
- You are stopped at traffic lights.
- You are stuck in traffic.
- Your engine is running.
- Your car has stopped automatically due to start-stop technology.
- You are supervising a learner driver.
If the engine is on and you are in control of the vehicle, the law applies to you.
What Counts as “Using” a Mobile Phone?
The law now covers almost any interaction with a hand-held device.
You commit an offence if you:
- Hold your phone.
- Make or receive a call.
- Send or read a text.
- Take photos or record videos.
- Use social media.
- Scroll through music playlists.
- Play games.
- Check notifications.
- Unlock your phone.
- Look for directions.
Even briefly picking up your phone while driving can result in a penalty.
The key point is this: if you are physically holding the device while driving, you are breaking the law.
Does the Law Apply When You Are Stopped?
Yes.
Many drivers believe that using a phone at a red light is allowed. It is not.
If your engine is running, you are considered to be driving. That means:
- You cannot check messages at traffic lights.
- You cannot scroll through your phone while waiting in traffic.
- You cannot hold your phone while stationary in a queue.
The only safe way to use your phone legally is to park safely and switch your engine off.
Are There Any Exceptions?
There are very limited exceptions where using a hand-held phone is allowed.
You may use your phone if:
- You are safely parked with the engine switched off.
- You need to call 999 or 112 in a genuine emergency and it is unsafe or impractical to stop.
- You are making a contactless payment at a drive-through while stationary and collecting goods immediately.
Outside these situations, holding and using a mobile phone while driving is illegal.
Can You Use a Hands-Free Device?
Yes — but there are important conditions.
Hands-free devices are legal provided:
- The phone is secured in a cradle or mount.
- The system is set up before you begin driving.
- The device does not block your view of the road.
- You remain fully in control of the vehicle.
Hands-free systems include:
- Bluetooth connections.
- Apple CarPlay.
- Android Auto.
- Built-in infotainment systems.
- Voice command technology.
- Secure phone holders.
However, you should understand something very important: even if hands-free use is legal, you can still be stopped and prosecuted if the police believe you are distracted.
The law focuses on control. If you are not in proper control because of a conversation or distraction, you may face further charges.
Why Is Mobile Phone Use So Dangerous?
There are three main types of distraction:
Physical Distraction
When you hold your phone, one or both hands leave the steering wheel. This reduces your ability to control the vehicle.
Visual Distraction
When you look at your phone, your eyes leave the road. Even a two-second glance can be dangerous at speed.
Cognitive Distraction
This is the most serious. Even if you are not holding the phone, a detailed or emotional conversation can reduce your concentration. Your brain cannot fully focus on driving and the conversation at the same time.
Research shows that cognitive distraction significantly slows reaction times and reduces hazard awareness.
What Is the Penalty for Using a Phone While Driving?
The standard penalty is:
- £200 fine
- Six penalty points on your licence
- Endorsement code CU80
This applies if you are caught using or holding a mobile phone while driving or supervising a learner driver.
If You Are a New Driver
If you passed your driving test within the last two years, six penalty points will result in your licence being revoked. You would have to reapply for a provisional licence and retake both your theory and practical tests.
For new drivers, one phone offence can effectively end your driving privileges.
If You Drive a Lorry or Bus
The maximum fine can rise to £2,500.
What Happens if You Refuse the Fixed Penalty?
If you do not accept the fixed penalty notice, the case may go to court.
The police may also send the case directly to court if they believe:
- Your driving was dangerous.
- You were speeding.
- You were overtaking unsafely.
- The offence was particularly serious.
In court, you could face:
- A higher fine.
- A driving ban.
- Additional penalty points.
What If You Cause a Crash?
If you cause a collision while using a mobile phone, the consequences become much more serious.
You could be charged with:
- Careless driving.
- Dangerous driving.
If someone dies, you could face a charge of causing death by dangerous driving. This carries a maximum sentence of up to 14 years in prison.
Using a phone while driving can therefore escalate from a traffic offence to a serious criminal offence.
Can Your Employer Be Prosecuted?
Yes.
If your employer:
- Requires you to make calls while driving,
- Encourages you to use your phone on the road,
- Causes or permits unsafe driving behaviour,
they may also face prosecution.
Companies have a legal duty to ensure employees drive safely. Employers who pressure staff to take calls while driving may be held responsible.
Can the Police Stop You for Hands-Free Use?
Yes.
Even though hands-free devices are legal, police officers can stop you if they believe:
- You are distracted.
- The device blocks your view.
- You are not in proper control of your vehicle.
If your phone holder obstructs your windscreen view, you could receive:
- Three penalty points.
- A fine of up to £1,000.
You must position any device carefully so it does not interfere with your view or airbags.
AI Cameras and Modern Enforcement
Enforcement methods have also improved. Trials led by National Highways have introduced AI-powered roadside cameras capable of detecting mobile phone use and seatbelt offences.
These cameras can operate:
- During the day and night.
- In poor weather.
- From mobile units mounted on vehicles or trailers.
Detection is no longer limited to police officers observing you directly. Technology now plays a major role in identifying offenders.
Can You Use Your Phone as a Sat Nav?
You can only use your phone as a sat nav if:
- It is secured in a cradle or mount.
- You operate it hands-free.
- You enter the destination before you start driving.
You must not hold your phone to enter directions while driving.
If you need to change your route, pull over safely and switch off the engine before touching the device.
If your vehicle has a built-in sat nav, using that system may reduce distraction.
Practical Advice to Stay Safe and Legal
To avoid penalties and protect yourself:
- Put your phone out of reach while driving.
- Use a secure cradle if you need hands-free access.
- Set up sat nav, music, and contacts before starting your journey.
- Avoid emotional or detailed calls while driving.
- If you must take a call, find a safe place to stop and switch off the engine.
- Consider placing your phone in the glove box or boot if you struggle with temptation.
If you miss a call or message, you can always return it later. No message is worth risking your licence or someone’s life.
The Key Message
The law on using a mobile phone while driving in the UK is clear and strict.
If you are holding your phone and your engine is running, you are almost certainly committing an offence.
Even hands-free use can lead to prosecution if it distracts you.
The penalties are severe, especially for new drivers, and the consequences can be life-changing if an accident occurs.
The safest approach is simple: if you need to use your phone, park safely and switch off your engine.
Driving demands your full attention. The law reflects that reality — and it applies to you every time you get behind the wheel.