IHTM22001 - Interest in unadministered estates and QSR: introduction
Where a person is entitled to an interest in another person鈥檚 estate (IHTM04043) and they die before the聽administration of that earlier estate was聽completed you will need to calculate the value of the unadministered estate as part of the estate you are looking at now.
Where inheritance tax was payable in connection with the earlier death you may be able to allow some of that tax as a relief against the tax payable on the second estate. There is a similar relief on lifetime transfers (IHTM04051) on the termination prior to death of a qualifying聽interest in possession.
This section聽provides more detailed information and guidance about valuing an interest in an unadministered estate (IHTM22011) and calculating and allowing relief for successive charges known as Quick Succession Relief or QSR (IHTM22041).