MOT test checks that your vehicle meets road safety and environmental standards. You must get a MOT test every year once your vehicle is 3 years old, 1 year in some cases. You can renew your MOT up to a month before it expires. While renewing a MOT certificate, current MOT certificate needs to be presented to the examiner at the time of the test.
On passing the MOT test, the vehicle will receive a MOT Certificate valid from the date of expiry of your existing MOT Certificate.
Read more: VOSA Car MOT Check List | VOSA MOT Test