my dad owns a house in Ireland with his brother. It was the family home and they use as a holiday home. They have never registered for property tax. The both live in Scotland. How much will they owe in penalties and tax now? The house is worth about €50000. We are worried as the house will be left to us and we will be liable. My dad wants to register and pay the tax but his brother will not. We live in England and know little about this tax and hav only just found out about the non payment. Any advice gratefully received.