A qualifying activity is controlled by a person in a tax year if it is controlled by the person at the end of the chargeable period for that activity which ends in that tax year.

A qualifying activity carried on by an individual is controlled by the individual who carries it on.

A qualifying activity carried on by a partnership is controlled by the person (if any) who controls the partnership.

Section 574(3) defines “control” in relation to a partnership.

Where partners who between them control one partnership also between them control another partnership, the qualifying activities carried on by the partnerships are to be treated as controlled by the same person.