I understand the Deputy is asking about the yield from the removal from tax law of what is known as the remittance basis of taxation, which applies to certain foreign income and gains of those who are tax resident but not domiciled in the State. I am informed by the Revenue Commissioners the "remittance basis of taxation" means, in brief, that apart from employment income, foreign income and foreign capital gains are chargeable to Irish tax only when remitted to the State. With regard to employment income, where an individual who is tax resident but not domiciled in the State holds a foreign employment, the "remittance basis" of taxation is available to him or her in respect of that proportion of the income attributable to the performance outside the State of the duties of that foreign employment. The remittance basis is not available in respect of that proportion of the income attributable to the performance in the State of the duties of that foreign employment.
As there is no statutory obligation on those availing of the remittance basis of taxation to make an annual return of their un-remitted income and gains, it is not possible to quantify or estimate the amount of tax yield to be gained from the abolition of the remittance basis of taxation.