Running a red light UK: penalties and fines
Running a red light is a criminal offence in the UK. The standard fixed penalty is a £100 fine and 3 points on your licence, issued when a traffic light camera records your vehicle crossing the stop line after the signal has turned red. In serious cases the matter goes to court, where higher fines and disqualification become possible.
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What is the penalty for running a red light?
The standard penalty for failing to comply with a red traffic light signal is a £100 fixed penalty notice (FPN) and 3 penalty points on your driving licence. You have 28 days to pay the FPN from the date it is issued.
If the matter goes to court - because you contest the notice and lose, or because the offence was particularly dangerous - the fine can rise significantly. Magistrates can impose a fine of up to £1,000, and in cases involving dangerous driving a disqualification is possible.
New drivers should be aware that 3 points, combined with other endorsements, can trigger licence revocation under the New Drivers Act for anyone within two years of passing their test.
How do traffic light cameras work?
Traffic light cameras are triggered when a vehicle crosses the white stop line after the signal has turned red. Most use sensors embedded in the road surface or detection loops; others use radar or video.
The camera typically captures two images: one showing the vehicle at the stop line and another showing it in the junction. Both are time-stamped with the signal phase, confirming the light was red when the vehicle crossed.
Not all camera housings contain working cameras, and not every trigger produces a prosecution. However, assuming a camera is inactive is not a legal defence, and the risk of prosecution is real even where cameras appear to be inactive.
When can you legally go through a red light?
In normal driving conditions, you must stop at a red light. There are no exceptions for private drivers - not even when the road appears clear. Emergency vehicles responding to an incident on blue lights may proceed through red signals, but must do so with due care and attention.
The belief that you can proceed through a red light if it is safe to do so is incorrect. "The road was clear" is not a defence.
One situation worth understanding: if your vehicle has already entered the junction on an amber or green signal and the light turns red while you are crossing, you should clear the junction safely rather than stop in the middle. This is not the same as deliberately crossing a red.
Can you contest a red light penalty notice?
Yes. If you receive a Notice of Intended Prosecution or a fixed penalty notice, you can challenge it. Grounds that may succeed include:
- The vehicle shown is not yours or was not being driven by you at the time
- The images are unclear or do not confirm the light was red
- There is documented evidence the signals were faulty at the time
- You were responding to a genuine medical emergency (recognised in law, but a high threshold)
Contesting and losing means the case goes to a magistrates court. Court fines are higher than the fixed penalty, and there is a risk of increased points or a disqualification. Seek legal advice if the facts are genuinely in dispute before deciding to contest.
How does a red light offence affect car insurance?
Three points for a red light offence (offence code TS10) must be declared to your insurer. Most insurers ask about motoring convictions from the last five years when you get a new policy or at renewal.
A TS10 endorsement will typically increase your premium. The size of the increase depends on your wider risk profile - age, years of experience, claims history - and varies between insurers. Shopping around at renewal becomes more important once you have points.
Not declaring a conviction risks policy invalidation and makes future insurance more expensive. For more detail on how endorsements affect premiums, see how penalty points affect car insurance.
Red lights and the driving test
Failing to comply with a red traffic light is treated as a serious or dangerous fault on the UK practical driving test, which means an automatic fail - crossing the stop line on red is treated as an automatic failure regardless of the circumstances. The test itself continues to its normal length though: examiners don't stop the test on the spot, and you'll find out the result at the debrief afterwards.
Amber lights are assessed on context. If you are close to the line when the signal changes and stopping would require heavy braking, continuing through amber is acceptable. If you had adequate time and distance to stop safely and did not, an examiner will record it as a fault.
The test also assesses response to pedestrian crossings (pelican, toucan, puffin), which use the same signal sequence. Approach each controlled crossing with the same discipline as a standard traffic light.
What to do if you receive a penalty notice
When a Notice of Intended Prosecution arrives:
- Check the details match your vehicle and the location
- If you were the driver, respond within the timeframe given - typically 28 days
- If someone else was driving, nominate them by completing the keeper's section
- If the details appear incorrect, seek advice before responding
- Do not ignore the notice - failure to respond leads to a court summons and potentially higher penalties
Most notices are resolved by accepting the fixed penalty. If you drive for work, check whether your employer requires you to declare penalty points as a condition of a company vehicle or business mileage arrangement. Temporary car insurance for short-term use does not require a clean licence, but a conviction changes your risk profile and will be reflected in any quote.
Frequently asked questions
What is the fine for running a red light in the UK?
The standard penalty is a £100 fixed penalty notice and 3 points on your licence. The offence code is TS10. If you contest the notice and lose at court, the fine can rise to £1,000 and the court may impose additional points or a disqualification.
Do traffic light cameras always catch you?
Traffic light cameras are triggered when a vehicle crosses the stop line after the light has turned red. Not every camera housing contains an active camera, and not every trigger results in a prosecution - but assuming a camera is inactive is not a legal defence.
How long does a red light offence stay on your licence?
A TS10 endorsement (failing to comply with a traffic direction signal) remains on your driving record for four years from the date of the offence. Most insurers ask about convictions from the last five years, so the points may affect your premium beyond that four-year mark.
Can you go through a red light in an emergency?
For private drivers, there is no legal exception. Only emergency vehicles responding to an incident on blue lights may proceed through red signals, and they must do so with due care. 'The road was clear' is not a defence, nor is a claimed personal emergency.
Does a red light conviction affect car insurance?
Yes. A TS10 endorsement must be declared when you take out or renew a policy. Most insurers will increase your premium to reflect the added risk. Failing to declare a conviction risks policy cancellation and makes future cover more difficult to obtain.
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