IHTM28368 | Liabilities: investigating form IHT419: when property derived from the deceased can be disregarded for FA86/S103 purposes?
From HM Revenue & Customs · Inheritance Tax Manual
The definition of property derived from the deceased (IHTM28367) is wide-ranging. But, an earlier disposition should be ignored if
it was not a transfer of value (IHTM04151), and
it is shown that it was not part of associated operations (IHTM09152) which contained any element of direct or indirect bounty, FA86/S103 (4).
An exempt transfer should be treated as a transfer of value for the purposes of this legislation.