MOT Guides
Clear UK MOT explanations for drivers and buyers. Every guide links back to the free MOT checker when you want to look up a registration.
MOT basics
Using MOTCheckers
MOT validity
How long does an MOT last?
Most MOT certificates last 12 months in Great Britain. Learn how expiry dates work and when you can test early without losing your anniversary date.
What happens if an MOT expires?
An expired MOT usually means you cannot drive on public roads legally. Here is what changes, what exceptions GOV.UK describes, and how to fix it.
Rules & driving
Before the test
Costs
MOT results
What does an MOT advisory mean?
An MOT advisory flags something the tester thinks you should monitor or repair soon. It is not a failure — but it can foreshadow the next test.
What does an MOT failure mean?
An MOT fail means the vehicle did not meet the required standard on the day of the test. Learn defect categories, driving rules, and what to do next.
What is an MOT retest?
After an MOT fail, a retest confirms repairs. Learn partial retest rules, typical time limits, and how retests differ from a brand-new test.
MOT records
How to read MOT history
MOT history is a timeline of official tests. Learn how to read dates, results, defects, and mileage so you can spot useful patterns — not just the latest pass.
What does MOT mileage mean?
MOT mileage is the odometer reading logged at the test. It helps track how far a vehicle has travelled between inspections — with important caveats.