IHTM35072 | Meaning of estate for s.142: settled property
From HM Revenue & Customs · Inheritance Tax Manual
Settled property (IHTM16000) in which the deceased had an interest in possession (IIP) (IHTM16061) is excluded from the death estate for the purposes of IHTA84/S142(1) by IHTA84/S142(5). However we do not apply that exclusion to settled property
in which the deceased had a beneficial IIP, and
the deceased had a general power of appointment over the settled property and exercised it by their Will.
Where both these conditions are satisfied you should treat the settled property as part of the death estate for the purposes of IHTA84/S142(1).
The taxpayers may seek to extend this treatment, to cases where the deceased
had exercised the general power of appointment by deed
had a general power but had not exercised it, or
had a general power but not a beneficial IIP in the trust property.
You should ask them to demonstrate the grounds on which they consider the particular situation falls within the scope of the legislation and refer the replies to Technical.