IHTM26002 | Calculating the chargeable estate: quantifying the amount which is chargeable and the amount which is exempt
From HM Revenue & Customs · Inheritance Tax Manual
The main purpose of the partly exempt transfer rules is to provide a method of calculating the part of the deceased’s estate which is exempt. The balance is then chargeable.
The rules (IHTM26071) operate by allocating the value of the estate between specific and residuary gifts. The rules apply separately at each title (IHTM26211).
It is normally not necessary to go through the full process in the following situations
The rules for quantifying the chargeable estate are mainly contained in IHTA84/S38 and IHTA84/S39. To apply the rules you will need to
To find the chargeable part of the estate
add together the value of the exempt specific gifts and exempt shares of the residue
then deduct this total from the value of the free estate for IHT purposes. The difference is the value on which tax is chargeable