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Can I Drive My Car if it Fails an MOT Test? What UK Drivers Need to Know

Last updated: 14/11/2025 | Estimated Reading Time: 7 minutes

Most vehicles over three years old need an MOT test certificate to be legally driven on public roads. The purpose of the MOT is to confirm that a vehicle meets minimum UK road safety and environmental standards. The test isn't too exacting—an inspector will not be worried about the car's presentation, and they're not looking for perfection. However, every now and then, a vehicle fails. When this happens, drivers are often left asking: 'Can I drive my car if it fails its MOT?'

The short answer is 'sometimes, but only under very specific conditions'.

Here, we'll explain exactly what happens when your car fails its MOT, when you can legally drive after failing one, when you can't, and what might happen if you are caught driving a car without a valid MOT certificate. We'll also talk you through the next steps after a failed MOT test and how to avoid a repeat failure

In This Guide:

What happens when your car fails its MOT?

If a vehicle does not meet the minimum standards during its full MOT test, it will be issued a VT30 fail certificate. This will list the faults that caused the failure in order of severity:

  • Dangerous faults pose an immediate risk to safety or the environment.
  • Major faults compromise safety, impact other road users, or harm the environment.
  • Minor faults meet the test standard but should be looked at and repaired by a qualified mechanic soon.
  • Advisories are areas to keep an eye on, but not a reason for failure.

A fail doesn't always mean the car can't be driven at all. The determining factors include whether the previous MOT is still valid, the severity of the faults, and where the driver intends to take the car.

MOT failures are recorded in the MOT database, which police and ANPR systems can access during roadside checks

Can you drive a car that has failed its MOT?

Now let's take a look at when you can still drive a car without a valid MOT:

If your existing MOT certificate is still valid

A failed MOT does not automatically cancel your current MOT certificate. If your previous MOT has not yet expired, you can usually continue driving your vehicle until it expires - under two very important conditions:

  1. No dangerous defects were recorded in the failed test, and
  2. The car remains roadworthy under UK road traffic laws.

However, it's a very good idea to arrange repairs to get the car up to standard before the MOT expiry date is officially up.

You will not be able to use the car if it has dangerous faults, and it's worth noting that major defects could cause serious issues if you continue to drive without fixing them. Remember also that if you get into an accident in a vehicle with major defects, you may find that insurers hold you culpable and refuse to pay out.

If your MOT has expired

If the current MOT has expired and your car fails its next MOT, you cannot legally drive it on public roads - unless you are driving it to a pre-booked MOT test or a repair appointment.

If the car has a “dangerous” fault

If the MOT test records dangerous faults, your vehicle will be declared non-roadworthy with immediate effect. In this case:

  • The current MOT certificate or previous MOT certificate will be invalidated for road use.
  • The vehicle will usually be kept at the test centre; it can only be driven away if it's going straight to repairs, and only if driving it does not create additional risk.
  • Usually, if you want to get the vehicle back home, you will need to book a towing or recovery service.

Dangerous faults include things like brake failure risks, structural damage, severe tyre defects, or insecure steering systems. If you ignore dangerous faults and drive the car away, you could be prosecuted for driving an unsafe vehicle.

How a failed MOT affects car insurance

Insurance policies are built on the assumption that the insured vehicle is legal and roadworthy. A failed MOT does not automatically invalidate insurance, but it can give insurers grounds to refuse a claim.

Common reasons for refusing claims after failing an MOT test include:

  • The vehicle was used illegally at the time of the incident.
  • The damage/accident was caused by a defect recorded during the MOT.
  • The driver knew the car was unsafe but continued to drive it.

Even fully comprehensive policies can be invalidated if the insurer determines negligence or noncompliance.

What should you do after a failed MOT?

If your vehicle fails an MOT test, don't worry. It's not the end of the road. Here's what to do next:

  1. Check the fault list carefully to understand the severity of the problem.
  2. Stop driving immediately if any faults are classed as dangerous. The test centre should inform you if any faults are dangerous, and will usually advise you not to drive away.
  3. Book repairs promptly.
  4. Arrange for a retest once repairs are completed.
  5. Keep documentation proving bookings, repairs, and test results.

Some test centres offer free partial retests if repairs are completed within a specified timeframe, while others charge a fee. This varies between MOT test centres, however, so it's a good idea to check retesting policies before you book your MOT.

If you disagree with your MOT test result, you have the right to appeal to the Driver and Vehicle Standards Agency (DVSA). You should lodge the appeal as quickly as possible, and not alter your vehicle until a DVSA-appointed assessor inspects it.

What are the penalties for driving without a valid MOT?

If you drive without a valid MOT, you could be hit with:

  • A fine of up to £1,000.
  • A prohibition notice that prevents further vehicle use.
  • Points on your licence.
  • Insurance complications or claim rejection.

There is no formal grace period after an MOT expires. The moment the certificate lapses, standard driving is illegal unless you are heading directly to a pre-booked test or repair appointment. If you are stopped without a valid MOT certificate, the police will fine you at the roadside. Repeated high-risk violations can escalate to court penalties.

How to avoid MOT failure in the future

Avoiding future MOT failures starts with proactive vehicle care. This involves things like:

  • Conducting monthly checks on tyres, lights, fluids, brakes, and mirrors.
  • Servicing the vehicle annually at a trusted garage.
  • Checking common failure points before booking a test.
  • Responding promptly to dashboard warning lights.
  • Replacing wear items, such as wiper blades and bulbs, proactively.

Many vehicles fail MOTs due to minor, preventable faults. Checking your car regularly means you'll spot issues early, which significantly reduces repair costs and lowers your chances of failing the MOT.

Know the rules before you drive away

The key rules for driving a car that has failed its MOT are:

  • You may drive the vehicle if the current MOT certificate is still valid and there are no dangerous faults.
  • If your MOT period has expired, you can only drive the vehicle to a pre-booked retest or a garage for repairs.
  • You must not drive at all if dangerous faults are recorded.

Understanding and following these rules will protect you from fines, insurance risks, and danger. When in doubt, keeping the car off the road until repairs are completed is not just the safest choice; it is often the cheapest and most legally secure one. 

To find the best insurance deal for your car, whether it’s failed its MOT or not, use MoneyExpert’s simple comparison tool. We’ll help you to find the most cost-effective insurance premium, even for a car that’s on its last legs (or wheels).

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