I expect they'll be set up to operate both ways, and accountholders can simply choose whichever way suits them.Are SIA investments likely to pay out dividends rather than just reinvesting them?
Not as I understand it. The dividend is income for the investor whether or not it is paid out; similarly any gains realised are the gains of the investor whether or not they are paid out. But because they are earned within an SIA they are not subject to income tax/CGT in the ordinary way; just to the 1% levy (if the account balance exceeds €50k).Although if dividends are paid out rather than being reinvested then maybe they are assessable for income tax?