Our solution
We extracted the trading subsidiary from the group by way of a capital reduction demerger so that all the shareholders held the same proportion of shares in a new trading group.
This allowed the parents to gift their shares to the children in the new trading group and claim CGT hold-over gift relief.
Shares held in the remaining investment group could in part be gifted into trust using available nil rate bands for IHT and holding over capital gains tax.
Outcome
Tax clearances were obtained for corporation tax, capital gains tax, income tax and stamp duty arising from the transaction.
Post demerge, shares were gifted to the children saving the parents around £420k in potential IHT with minimal tax cost.