Inheritance tax

My father has just been slapped with an inheritance tax bill of €260k. €60k of this is interest dating back to when his last parent died. The revenue is looking for this money now although the will has not been finalised. Until this happens he will not have property to sell in order to pay the bill. His portion of the will is entirely made up of assets. In addition I read somewhere on this forum in the past that such bills can be paid over 5 years when the will is comprised of assets solely. Any advice?

Talk to your solicitor.

See if there is a reasonable argument that your father is not yet "entitled in possession". If not, then the CAT would not yet be payable.