An MOT is an annual test that checks whether a vehicle meets the minimum road safety and environmental standards. Most cars need their first MOT by the third anniversary of their registration, and then one every year after that. The maximum fee for a car is £54.85, and you can be fined up to £1,000 for driving without a valid MOT. This guide explains what the test covers, what it costs, how to prepare, and what happens if your car fails.

MOT stands for Ministry of Transport, the department that introduced the test in 1960. Today the test is overseen by the Driver and Vehicle Standards Agency, known as the DVSA, which sets the standards and approves the test centres that carry it out. An MOT is not a service: it does not cover oil changes, filters or general maintenance. It is a safety and emissions check, and it only confirms that your vehicle met the minimum standards on the day of the test.

When does a car need its first MOT?

You must get an MOT for your vehicle by the third anniversary of its registration, or by the anniversary of its last MOT if it is over three years old. After that, you need one every year to keep driving legally. Some vehicles need to be tested earlier: taxis, ambulances and passenger vehicles with nine or more seats need their first test at one year old, not three.

You can get an MOT up to a month, minus a day, before your current one runs out and keep the same renewal date. For example, if your MOT runs out on 15 May, the earliest you can get it done while keeping the same renewal date is 16 April. If you get it done earlier than that, the renewal date for the following year changes to one year, minus a day, from the date your vehicle passed. So if your MOT is due to run out on 15 May and you take your vehicle in on 14 April and it passes, the expiry date changes to 13 April the following year.

You can check when your MOT is due for free on GOV.UK using the MOT history service, which needs only your registration number. You can also sign up for free MOT reminders by text or email, which arrive one month before your car, van or motorcycle MOT is due. The reminder service is not available in Northern Ireland, where you receive a reminder by post seven weeks before your MOT is due instead.

How much does an MOT cost?

There is a maximum amount that MOT test stations can charge, set by law, and it depends on the type of vehicle. You do not pay VAT on the fee, and a test centre cannot charge more than the maximum, although many charge less, so it is worth comparing prices before you book.

For a car with up to eight passenger seats, the maximum fee is £54.85. A standard motorcycle costs a maximum of £29.65, and a motorcycle with a sidecar up to £37.80. Larger goods vehicles weighing between 3,000kg and 3,500kg have a maximum fee of £58.60, and larger passenger vehicles cost more: up to £80.65 for vehicles with more than 16 passenger seats. A test usually takes around 45 to 60 minutes, and you can often wait at the garage or come back later.

If your vehicle fails, a retest can be free or cheaper in some cases. If you leave the vehicle at the test centre for repair and it is retested within 10 working days, you only need a partial retest and there is no fee for it. If you take the vehicle away and bring it back to the same test centre before the end of the next working day for a partial retest on certain items, such as lights, mirrors, wipers or tyres, you will not have to pay again. In other cases you will need a full retest and will have to pay the full test fee again.

What does an MOT check?

During the MOT, important parts of your vehicle are checked against the legal standards. You can watch the test from a viewing area, but you are not allowed to interrupt the tester. The checks for a car include the lights and signals, steering and suspension, brakes, wheels and tyres, windscreen, wipers and washer bottle, horn, seatbelts and seats, fuel system, exhaust emissions, bodywork, doors, mirrors, number plates and the vehicle identification number.

Your tyres must have a minimum tread depth of 1.6mm across the central three-quarters of the tread and around the entire circumference. A quick check is to push a 20p coin into the main groove of the tyre: if you cannot see the outer section of the coin, the tread is still legal. Your windscreen is also checked closely: chips or cracks larger than 10mm in the driver's central view, or 40mm in the swept area of the windscreen, can result in a fail.

The test also checks that your number plates are clean, secure and in the correct format, that your horn works and makes a single continuous sound, and that your seatbelts are secure, undamaged and retract properly. The exhaust system is checked for leaks and excessive smoke, and the vehicle's emissions are measured against the legal limits. The DVSA publishes a full MOT guide and inspection manuals that set out everything that is tested.

What does an MOT not check?

The MOT does not cover the condition of the engine, the clutch or the gearbox. That is one of the most common misunderstandings about the test. A car can pass its MOT and still have engine problems, worn clutch parts or gearbox faults, because those are not part of the legal safety and emissions standards the test measures.

An MOT is also only a snapshot of your vehicle's condition on the day of the test. It does not guarantee that the car will stay roadworthy for the next 12 months. You are responsible for keeping your vehicle in a roadworthy condition at all times, and you can still be prosecuted for driving a vehicle in a dangerous condition even if it has a valid MOT certificate.

How to prepare for an MOT

A few simple checks before your test can reduce the chance of a fail. Check that all exterior lights are working, including headlights, sidelights, indicators, brake lights, fog lights and number plate lights, and that no dashboard warning lights are on. Check your tyres for cuts, bulges and tread depth, and check the tyre pressures against the figures in your vehicle's manual.

Make sure your windscreen wipers clear the screen properly, the washer bottle is topped up, and there are no large stickers or obstructions blocking your view. Test your horn, check that your seatbelts latch and retract, and look for rust, sharp edges or excessive corrosion on the bodywork. Check that the doors, boot and bonnet open and close securely, and that the mirrors are present and undamaged. If your number plates are dirty or damaged, clean or replace them before the test.

Bring your V5C logbook for your first MOT, or if you have changed your number plate. You must have a valid driving licence and car insurance to drive your vehicle to the test centre. If your MOT has already expired, take your booking confirmation with you, because you are only legally allowed to drive to a pre-arranged test.

What happens if your car fails its MOT?

Your vehicle can either pass or fail. If it passes, the result is recorded in the MOT database, and you can ask the test centre for a printed certificate. You might also get a list of minor or advisory problems to monitor or fix in the future. These do not cause a fail on their own.

Your vehicle will fail if the test result lists dangerous or major problems. A dangerous fault means the vehicle poses a direct risk to your safety and others, and you will not be able to drive it until the problem is fixed. A major fault also results in a fail, although you may still be able to drive the vehicle in some circumstances, depending on the conditions set out on GOV.UK. Minor faults can be passed with, and advisories are potential issues flagged for the future.

If your vehicle fails, the result is recorded in the MOT database and the test centre will give you a refusal of an MOT test certificate. You can take the vehicle away if your current MOT is still valid and no dangerous problems were listed. Otherwise, you will need to get it repaired before you can drive it again. If you think the result is wrong, you can appeal to the DVSA. You should discuss the result with the test centre first, and you should not have any repairs made until the appeal process has finished. If your vehicle failed, you must send the complaint form to the DVSA within 14 working days of the test, and the DVSA will contact you within five days.

What happens if you drive without a valid MOT?

You cannot drive or park a vehicle on the road if its MOT has run out, and you can be prosecuted if you are caught. You can be fined up to £1,000 for driving a vehicle without a valid MOT. The only exceptions are driving to or from somewhere to be repaired, or to a pre-arranged MOT test.

The penalties are much higher if you drive a vehicle that has failed its MOT because of a dangerous problem. You can be fined up to £2,500, banned from driving and given three penalty points. Driving without a valid MOT can also make your car insurance invalid, which can leave you personally liable if you are involved in an accident.

If your MOT has run out and your vehicle tax is also due, you cannot renew the tax until the vehicle has passed its MOT. In that case you should register the vehicle as off the road, known as a SORN, book an MOT test, and tax the vehicle once it has passed.

Which vehicles do not need an MOT?

You do not need an MOT until your vehicle reaches the age shown in the MOT fees table, which is three years for most cars. Some vehicles never need one. These include goods vehicles powered by electricity and registered before 1 March 2015, tractors, and some historic or classic vehicles. A classic vehicle is generally one built or first registered more than 40 years ago that has not had substantial changes, such as a replaced chassis, body, axles or engine, in the last 30 years.

If your vehicle is exempt, you need to fill in the MOT exemption form, known as form V112, so that you can tax the vehicle or apply for tax exemption. Lorries, buses and trailers do not have MOTs at all. They must have an annual test instead, sometimes called the annual vehicle test. There is a different process to book an MOT in Northern Ireland, through nidirect rather than GOV.UK.

You must use an approved MOT test centre to get your MOT. Only centres showing the blue sign with three white triangles can carry out the test. Some MOT centres will collect your vehicle and return it afterwards, and you can also ask someone else to take your vehicle in if they are insured to drive it.

Frequently asked questions

Does a new car need an MOT? No. A new car does not need an MOT until the third anniversary of its registration, and then it needs one every year.

How long does an MOT take? A test usually takes around 45 to 60 minutes. The DVSA sets a minimum test time, so a proper test should not be rushed through in a few minutes.

Can I drive my car if it fails its MOT? Only if your current MOT is still valid and no dangerous problems were listed. If a dangerous fault was found, or your old MOT has expired, you must get the car repaired first.

Is an MOT the same as a service? No. An MOT is a legal safety and emissions check. A service is maintenance work, such as changing the oil and filters, and is not covered by the MOT.

How do I check my MOT history? You can check it free on GOV.UK with just your registration number. It shows past test results, advisories, recorded mileage and when your next MOT is due.

MOT rules and fees are set by the government and can change. Before you book, check the maximum fee for your vehicle and the current rules on GOV.UK, and only use an approved test centre.