My father died a over a year ago and grant of probate issued 21st December 2023. The estate has not been fully distributed yet as all the assets have not been sold. Some siblings received their full lifetime gift allowance 335k before his death. The estate will hopefully be finally distributed before the end of the summer and I understand that any tax liabilities will need to be paid by end of October. My query is if anyone can advise that if there is a change to the inheritance tax in the budget 1st October will the new thresholds be applicable or the current ones prior to the budget? Is it worth waiting until the budget to complete the IT38 form to calculate tax due on any inheritance received over the current allowance? Thanks