BIM15055 | Trade profits: statute - supplementary charging provisions
From HM Revenue & Customs · Business Income Manual
There are activities which produce income from the use of land or which arises out of land. These activities may or may not be trades within the normal meaning of that word for tax purposes. The question is put beyond doubt by specific provisions in the Income (Trading and Other Income) Act 2005 and for the following activities:
Farming and marketing gardening (see ).
Occupation of land managed on commercial basis (see ).
Profits or gains arising out of land in the case of mines, quarries and other specified concerns (see ).