Vehicles used solely for the purpose of agriculture, horticulture and forestry are exempt from vehicle tax; however, they still need to be taxed each year and display a ‘free’ tax disc. These vehicles can either be taxed in the ‘agricultural machine’ or ‘limited use’ tax classes.
The following vehicles can be taxed in the 'agricultural machine' tax class:
Agricultural tractor
A tractor used on the public roads only for purposes:
Off road tractor
A tractor which isn’t an agricultural tractor which is:
Agricultural engine
A machine specially designed or permanently converted to perform an agricultural operation on the land (eg a combine harvester).
Light agricultural vehicle
A vehicle which:
Agricultural lift and loading vehicle
A vehicle which is:
Digging machines don’t fall within the scope of the 'agricultural machine' tax class.
You can tax your vehicle in the ‘limited use’ tax class if it’s used solely for purposes relating to agriculture, horticulture or forestry and:
You can change to the exempt tax class at your nearest Driver and Vehicle Licensing Agency (DVLA) local office.
The DVLA will send you a reminder to do this each year.