1114. Additional tax due on death following a chargeable transfer.

So much of the tax chargeable on the value transferred by a chargeable transfer1 made within seven years of death of the transferor as exceeds what it would have been had the transferor died more than seven years after the transfer is due six months after the end of the month in which the death occurs2. Without prejudice to the above, the tax chargeable on the value transferred by a potentially exempt transfer3 which proves to be a chargeable transfer4, is due six months after the end of the month in which the transferor's death occurs