Regulation 16, like ICTA88/S245, counters unrelieved surplus ACT
buying. It stops a company or group acquiring a company with
unrelieved surplus ACT and routing new business into that company,
significantly changing its business in order to exploit its
unrelieved surplus ACT.
A set-off of unrelieved surplus ACT is precluded for
accounting periods after a change of ownership where:
The description of what a major change (see CTM20320) includes is taken straight from ICTA88/S245 (4) as are the definitions of a trading company and an investment company.