The Ultimate MOT Guide 2026/27

When your MOT is due

A car normally needs its first MOT on the third anniversary of its registration, and then a test every 12 months. Some vehicle types - including certain passenger-carrying vehicles and ambulances - are tested from one year old, so check your V5C if your vehicle is not an ordinary car.

You can have the test done up to a month (minus a day) before the current certificate expires and keep the same renewal date. That one-month window is the single most useful thing to know about MOT timing: it gives you time to get any failure fixed and retested while you are still legally covered by the existing certificate.

• First MOT: three years after registration for most cars
• Then every 12 months, with no grace period once the certificate expires
• Test up to one month minus a day early to keep your existing anniversary date
• Driving without a valid MOT is an offence, with limited exceptions covered below

What an MOT can legally cost

MOT fees are capped by statute. GOV.UK publishes the maximum a test station may charge: £54.85 for a Class 4 vehicle (cars and light vans up to 3,000kg) and £58.60 for a Class 7 vehicle (goods vehicles between 3,000kg and 3,500kg).

That is a ceiling, not a price. Plenty of garages discount the test, and some bundle it with servicing. What matters is that nobody may charge you more than the statutory maximum for the test itself. Repairs, retests outside the free window, and any additional work are separate and unregulated.

Fees quoted from GOV.UK on 29 August 2026. Check the GOV.UK MOT fees page for the current statutory maximums before relying on these figures.

What the test actually covers

The MOT checks that specified parts of the vehicle meet legal standards at the moment of the test. The DVSA inspection manual for private passenger and light commercial vehicles - updated 1 June 2026 - is the definitive statement of what a tester must inspect and how each defect is graded.

Broadly, testers examine the vehicle's structure and body condition, lighting and signalling, steering and suspension, brakes, tyres and roadwheels, seat belts and restraints, the driver's view of the road, exhaust and emissions, fuel and exhaust systems, registration plates and vehicle identification numbers, plus additional electrical and safety items on newer vehicles.

• Lighting and signalling - condition, operation, aim, colour and security
• Steering and suspension - condition, security, operation and excessive play
• Brakes - condition, performance, efficiency and the anti-lock warning system
• Tyres and roadwheels - condition, security, tread depth and correct specification
• Seat belts, airbags and supplementary restraint warning systems
• Driver's view of the road - windscreen condition, wipers, washers and mirrors
• Exhaust, fuel and emissions, including diesel smoke and petrol gas levels
• Vehicle structure, body condition, doors, towbars and registration plates

The MOT does not check the condition of the engine, clutch or gearbox, and it does not tell you whether the car will still be roadworthy next week. That is what servicing is for.

Dangerous, major and minor defects

Since the 2018 changes, defects are recorded in graded categories rather than as a simple pass or fail line. Understanding the grades tells you exactly what you are legally obliged to fix.

• Dangerous - a direct and immediate risk to road safety or a serious impact on the environment. The vehicle fails and should not be driven until it is repaired.
• Major - may affect safety, put other road users at risk or have an environmental impact. The vehicle fails and the defect must be repaired immediately.
• Minor - no significant effect on safety or the environment. The vehicle passes, but the defect is recorded and should be repaired as soon as possible.
• Advisory - an item that is wearing and may need attention in future. The vehicle passes; the advisory is a warning, not a requirement.

Advisories are worth taking seriously even though they are not legally binding. An advisory on brake pads or tyre tread often means the item is close to the failure threshold and will not survive another year.

Reading your result

The result is recorded on the MOT database as soon as the test is completed, and you should be given a printed or emailed certificate or refusal notice. The public MOT history service lets anyone check the test result, mileage record and past advisories for a registration.

A pass certificate shows the expiry date plus any minor defects and advisories. A refusal notice lists every dangerous and major defect that must be put right, and it is the document a garage will work from when quoting repairs.

If your car fails

A failure is not the end of the world, but it does change what you may legally do with the car. If the previous certificate is still valid and no dangerous defect was recorded, you may generally drive the car away. If a dangerous defect is recorded, or the certificate has already expired, the car should not be driven on the road except to a pre-arranged repair or test appointment.

Get the refusal notice itemised into work that is legally required for a pass and work that is advisory. That single question - which of these do I have to do today? - is the most effective way to control an unexpected repair bill.

Retests and the 10-working-day rule

GOV.UK sets out the retest rules. If you leave the vehicle at the test station for repair and it is retested within 10 working days, the partial retest is free. If you take the vehicle away and bring it back within 10 working days, a partial retest may be carried out and a partial retest fee may apply.

There is also a shorter free route: for a defined list of items, if the vehicle is taken away and returned before the end of the next working day, the retest of those specific items is free.

Retest rules quoted from GOV.UK on 29 August 2026. Confirm with your test station what type of retest they will carry out and what, if anything, it will cost before you take the car away.

If you disagree with the result

You can complain to DVSA about an MOT test result. There is a formal appeal process with a time limit, and the vehicle normally must not be repaired before the appeal is inspected - repairing it removes the evidence. If your complaint is about the garage's conduct or charging rather than the test decision, Citizens Advice explains your consumer rights and how to escalate.

Booking the test

Any DVSA-authorised test station can test your vehicle, provided it is authorised for the right class. Serviced247 lists MOT test centres in England, Scotland and Wales from the DVSA active-station register, so you can find the authorised centres near a town or postcode area and contact them directly. Many drivers book an MOT and service in the same visit to save a second trip.

Serviced247 holds DVSA MOT-authorisation records only. We do not hold prices, opening hours, availability or the servicing capabilities of individual centres - confirm those with the garage.