I don’t think that is quite right.
I’ll assume that P was a director/employee of the trading company when the 51% was acquired so it is clear that P’s own shares are ERS. Also, if I was thinking the employment income tax charge through, I would do it in the following order:
- General earnings - s62 ITEPA
- Disguised remuneration - Part 7A ITEPA
- ERS - Part 7 ITEPA
The normal earnings charge only applies where someone gets profits by reason of their employment. ERS does not come into that bit. So the key question is why is P getting the shares. If it is because P has done really well and deserves to be rewarded then yes, it’s earnings under s62 ITEPA 2003. But it the quantum (49%) and the discretionary trust created by father bit suggests its more family-related and so not by reason of employment.
So then you have to look at the disguised remuneration rules in Part 7A ITEPA. As described / assumed, it won’t get through the gateway in s554A(1)(c) if it is a family discretionary trust as it is not “reasonable to suppose that, in essence … the relevant arrangement … is (wholly or partly) a means of providing, or is otherwise concerned (wholly or partly) with the provision of, rewards or recognition … in connection with A’s [your P’s] employment … with B [the trading company]”. If the family discretionary trust was not to be a family trust but an an EBT (e.g. because you’ve wanted to take advantage of an IHT exemption for employee trusts), disguised remuneration would apply.
Then you get into the ERS rules. Just because a share is an ERS does not automatically mean that there is an income tax charge. For example, if I worked for Tesco and bought a share in Tesco in my GIA in the normal way it would be an ERS but there is no tax charge anywhere.
You could be in Chapter 3C or Chapter 5 of Part 7. None of the other chapters will create a tax charge. Assuming P has no right to acquire the shares (e.g. a call option) then Chapter 5 (securities options) cannot apply. Chapter 3C could apply though. If it does, the market value of the shares (less any price paid) is treated as an interest-free notional loan for the BiK rules (but not for s455). As it’s a trading company, the BiK would be a non-issue as it would be a “qualifying” notional loan. So (if Chapter 3C applied) there would be no tax due until the shares are disposed of. Then the notional loan is treated as being written off and subject to employment income tax, unless to an associated person (see s421C) or P dies (s446U(4(b) - there is no tax on death).
So it would be painful if Chapter 3C applies and P later wants to do something with the shares before death. But if the shares are all the same class then the company will be employee controlled, and this is not being done for the main purpose of avoiding tax, so s446R will give an exemption from Chapter 3C. End of story, no tax charge.
If you trust some random stranger on the internet and the facts I’ve made up are correct then Chapter 3C does not apply and there is nothing else left to create an employment income tax charge.