MOT Explained
What the MOT test is, what it checks, when yours is due and what pass, fail and advisory mean for UK drivers.
Last updated 6 July 2026 · 6 min read
Part of our guide to How to Choose a Garage
What is an MOT?
The MOT (Ministry of Transport) test is an annual safety inspection required for most vehicles over three years old in the UK. It checks that your car meets minimum legal standards for roadworthiness — it is not the same as a service. A car can pass an MOT with a worn cambelt that a service would flag, and vice versa.
What does the MOT check?
- Lights, indicators and reflectors
- Steering and suspension
- Brakes and tyres (including tread depth)
- Seatbelts and seats
- Windscreen, wipers and washers
- Exhaust emissions and fuel system
- Body structure and corrosion (on older vehicles)
- Registration plates and VIN
Pass, fail and advisory
Pass — the vehicle meets the legal standard. Fail — one or more items did not meet the standard; repairs are needed before the car is road legal. Advisory — something is worn but not yet a fail; the tester recommends monitoring or fixing soon. If your car fails, the garage should explain what needs doing and give you a quote before any repair work. See understanding garage quotes before you agree.
How much does an MOT cost?
The maximum fee for a car MOT is set by the government (currently £54.85 for a standard car). Many garages charge less. The test fee covers the inspection only — repairs after a fail are extra. Choose a testing station carefully; see how to choose a garage.
Prepare before the test
Simple checks before your appointment can prevent a fail on something minor. Read preparing for an MOT for a practical checklist. Remember that servicing and MOTs serve different purposes — see how often should I service my car for maintenance intervals.
Frequently asked questions
- When is my MOT due?
- Check the expiry date on your current MOT certificate or search your registration on the GOV.UK MOT history service. You can book a new MOT up to one month before expiry without losing any days on your certificate.
- Can I drive without a valid MOT?
- No — except when driving directly to a pre-booked MOT test or to a garage for repairs after a failed test. Driving without a valid MOT invalidates your insurance and can result in a fine.
- What is the difference between a fail and an advisory?
- A fail means the vehicle did not meet the legal minimum standard and must be repaired before it can be driven on the road (except to a repair garage). An advisory notes something that may become a problem soon but is not yet a fail — worth fixing before your next MOT.
Related guides
How to Choose a Garage
A plain-English guide for drivers on what to look for when choosing a garage — qualifications, reviews, pricing and red flags.
Preparing for an MOT
A practical checklist for drivers before an MOT — simple checks that prevent fails on lights, tyres, wipers and other easy fixes.
How Often Should I Service My Car?
How often UK drivers should service their car — manufacturer schedules, mileage intervals and what happens if you skip a service.
Understanding Garage Quotes
How to read a garage quote or estimate — labour, parts, VAT, extras and what to do if the final bill is higher than expected.
Choosing Between Main Dealer & Independent Garage
An honest comparison for UK drivers — cost, warranty, specialist knowledge and when a main dealer or independent is the better choice.
Ready to modernise your garage?
AskMike gives independent garages a professional website, online bookings and add-ons that reduce admin and win more work.