>> Gov website says a month minus 1 day and quotes as an example:
>> If your MOT runs out on 15 May, the earliest you can get an MOT
>> to keep the same renewal date for next year is 16 April.
Surely that only applies if you want to keep that same date every year. I'm sure one can have an MOT any time but the date will then be 12 months from that test date. I believe that is what you said above though. My road tax expires on the 30th June each year so I have my MOT done as soon as June arrives. Quite simple to remember even for a very old git, I would have thought.