Nicola Macintyre

My father died 30 years ago, leaving everything to my mother. (They were married). My mother has recently died leaving everything to my brother and me. Her estate, including her house, is worth around £600,000, taking us above the inheritance tax threshold. The internet is not giving me a clear answer - Does my father’s inheritance tax allowance get passed down to us, meaning that our allowance will be £350,000 x 2, so we would pay inheritance tax only above £700,000? (I understand there is an allowance for passing on a property too, but need to understand the inheritance tax issue first.) I