Irish sourced deposit interest
Savings are generally subject to Deposit Interest Retention Tax at a rate of 33%. Examples of savings that are subject to DIRT are savings with an Irish bank, a credit union or An Post. Where applicable, DIRT will be deducted by the deposit taker.
EU sourced deposit interest
Interest on savings with an EU bank or other deposit taker is generally taxed at the same rate as DIRT.
Non-EU sourced deposit interest
Non-EU sourced deposit interest including UK accounts, are taxed at the higher of the DIRT rate and your marginal rate of tax. If you are a standard rate taxpayer, your deposit interest is taxed at the DIRT rate. However, if you are a higher rate taxpayer, your interest will be taxed at 40%.