IFM03340 - Authorised investment funds (AIFs): taxation of investors within the charge to CT: disposals of units
A disposal of units in an authorised investment fund (including shares in an open-ended investment company) may give rise to a charge to capital gains tax.
For more details please see the Capital Gains Manual from CG57680.
Umbrella schemes / umbrella companies
For an explanation of these and the tax treatment applying please see IFM02140. This page also gives cross-references to the capital gains manual for details of the treatment for chargeable gains purposes of exchanges of units between sub-funds.