An annual flat-rate tax is among the guiding principles for the planned State-backed savings scheme that is expected to be introduced in the next budget.
Tánaiste and Minister for Finance Simon Harris will tell a savings and investment forum later today that plans include such a tax being applied to the value of assets held in the account above a tax-free threshold, while all investments made within the account would receive consistent tax treatment.
Also among the potential architecture for the savings scheme could be a requirement for account providers to administer the tax to help remove complexity for investors, according to the Tánaiste.
The additional detail follows reports at the weekend that there will be no capital gains tax applied to income earned under the new investment scheme, which is being developed by the Minister for Finance.
Mr Harris is convening the meeting of relevant industry and policy stakeholders to inform the process of establishing the investment account.
Representatives from banks and credit unions as well as the Governor of the Central Bank and EU officials are taking part.
There is around €170bn on deposit by savers in Ireland, and it is hoped a portion of this money will be invested.
Currently, Irish people hold just over 2% of their financial assets in direct investments such as stocks and bonds.
Addressing the first Savings and Investment Forum at the Central Bank Headquarters, the Tánaiste will point out that Ireland "still does not have a sufficiently diversified savings and investment culture" with "too much of people's hard-earned savings" remaining in "low-yield deposits, where inflation can erode value over time".
Mr Harris will tell the forum that the accounts "should be simple, accessible, and tax-efficient, easy to administer, transparent on fees, and portable across borders where possible".
Cabinet ministers were told last week that the preferred model being examined for the account is a Swedish system called Investeringssparkonto (ISK).
It will also be announced that the Department of Finance will run an Expression of Interest for the appointment of financial literacy ambassadors.
