When our Jazz was under three years old I kept the Honda service history up to date and obtained a free MOT alongside the third service. In case it matters, it was also the dealer which sold us the car.
(I also wanted a Honda dealer to do the MOT before the warranty ran out so that they could identify any defects which they could then repair under warranty).
Since then I have done my own servicing using Honda parts but get the MOT at half price through Nationwide (now part of Halfords Group) by downloading the voucher from the Autotrader web site.