MOT Rules Explained: First MOT, Testing Early, Retests and Driving After a Fail

22nd September 2026

4 min read • 787 words

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When your first MOT is due, how early you can test, when a retest is free, and whether you can drive after a fail. The UK MOT rules in plain English.

Most drivers only think about the MOT once a year, which is why the rules catch people out. Everything below comes from the official gov.uk guidance and applies to cars in England, Scotland and Wales.

When is an MOT due?

  • First MOT: by the third anniversary of the car's first registration.
  • After that: every year, by the anniversary of its last MOT.

The government consulted on moving the first MOT to four years, but decided in January 2024 to keep it at three.

You can check when any car's MOT is due, and its full test history including past advisories, on the gov.uk MOT history service. You can also sign up for free MOT reminders.

Ford Fiesta on the MOT lift with the bonnet open

Can I have my MOT early?

Yes. You can have the test up to one month (minus a day) before your current MOT runs out, and keep the same renewal date. If your MOT runs out on 15 May, the earliest you can test and keep that date is 16 April. Test earlier than that, and your new MOT runs for a year from the date of the pass.

Testing early is a good idea: if the car fails, you have time to get it fixed before the old certificate expires.

How much does an MOT cost?

The maximum fee for a car is £54.85. Test centres can charge less, but not more.

What the results mean

ResultWhat it meansCan you drive?
DangerousA direct and immediate risk to road safety or the environment. The car fails.No, not until it's repaired, even if your old MOT is still valid
MajorCould affect safety, other road users or the environment. The car fails.Only if your old MOT is still valid and the car is roadworthy; get it repaired
MinorNo significant effect on safety or the environment. The car passes.Yes; repair it soon
AdvisorySomething that could become a problem. The car passes.Yes; keep an eye on it

Driving a car with a dangerous defect can lead to a fine of up to £2,500, a driving ban and three penalty points.

White Hyundai ix35 on the MOT bay lift

Retests: when are they free?

  • You leave the car at the test centre for repair, and it's retested within 10 working days: the partial retest is free.
  • You take the car away and bring it back within 10 working days: it gets a partial retest, which the centre can charge for.
  • You bring it back to the same centre by the end of the next working day for certain simple items, such as lamps, mirrors, wipers and washers, wheels and tyres, number plates, the horn, seatbelts or the windscreen: the partial retest is free.
  • Anything else: a full retest at the full fee.

This is one of the practical advantages of an MOT centre that also carries out repairs: the car can stay put, be fixed and be retested.

Driving without an MOT

  • Driving without a valid MOT can mean a fine of up to £1,000.
  • If your MOT has expired, you can still drive the car to a pre-booked MOT, or to have repairs done, as long as it's roadworthy.
  • Driving an unroadworthy car may also invalidate your insurance.

Which cars don't need an MOT?

Cars built or first registered more than 40 years ago don't need an MOT, as long as they haven't been substantially changed, for example with a replaced chassis, body, axles or engine. The 40-year point rolls forward each year. The car still has to be kept roadworthy, and you can choose to have an MOT anyway.

Black Jaguar F-Type in the Mitsiland MOT bay

Before your test

Many failures come down to simple things such as bulbs, tyres, wipers and warning lights. Our guide to why cars fail their MOT lists the checks you can do yourself. If a warning light is on, read what to do when your check engine light comes on first, because an engine management light that stays on is a fail.

MOT testing at Mitsiland

We carry out Class 4 MOT testing on site at our Denton workshop, with DVSA-approved testers. If your car needs work, we can usually carry out repairs in the same visit, and we'll always explain what's needed, and what it costs, before starting. Many customers book their MOT alongside a service. See interim, full and major services.

Mitsiland is an independent specialist at Tameside Business Park, 4 Windmill Lane, Denton, Manchester M34 3QS. Call 0161 320 7788 or book online.

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