The value for tax is as established for the IHT charge at the time of transfer, except in cases where there is
or
The value includes any grossing ( IHTM14593) addition made then because that tax was borne by the transferor, and so was in effect a further gift by the transferor. But any additional tax payable because of their death within seven years of the transfer is not a liability of the transferor (it is primarily a liability of the transferee), so there can be no further grossing in respect of that additional tax.