I am informed that no distinction is made in the Tax Code between vacant and occupied properties. It is not possible therefore to derive estimates from Revenue statistics in relation to the Deputy's question.
Section 86 of Finance Act 2017 provides that I shall prepare and lay before Dail Éireann a report on the issues relating to making provision in law for a tax on vacant residential property, the administration and implementation of such a tax, the availability of reliable baseline data and the estimated annual revenue from any such tax within nine months of the passing of the Act. Work on this report is ongoing and it will be laid before Dáil Éireann in the coming months.