Computing the amount to assess: business changes: one trade or more than one trade: same trade by different entities
None of these rules apply where there is a difference of identity between the persons and body of persons carrying on the two activities. In particular, where similar activities are carried on both by a partnership and a partner on his or her own account each will carry on a separate trade.
Equally, where two companies within the same group carry on similar activities each will carry on a separate trade. Nor can a company’s trade be part of a ‘group trade’ carried on by a group of companies as a whole.