Hardly worthwhile opening regular saver accounts if money needed in five months. Make it simple - put it into an Anglo Irish Demand account @ 3.60% or a Nationwide UK Ireland demand account @ 3.55%. Really the amount of interest you will earn is small - if you invest €8000 for 4 months @ 3.60%, the interest after DIRT is 2.70%, so the amount of interest earned into your hand will be €72.