I regret that it is not possible for the Revenue Commissioners to ascertain the precise number of persons who work in the Republic of Ireland but live in Northern Ireland. Such information is not readily available from the data kept by the Revenue Commissioners. However, a rough study of the numbers involved was carried out for the tax period 1992-93 and an approximate figure of 2,500 was arrived at.
As regards the second part of the Deputy's question — what is the cost of tax refunds to such cross-Border workers — it is not clear what the Deputy is referring to. Typically, tax refunds would not arise in such cases.