Sorry if I sound stupid but this in one account I cannot get my head around. I started one of these accounts last August - €1,000 per month. As per terms and conditions my interest was added in April, €90.75, so my amount now going into year 2 is €8,090.75. I hope to continue lodging €1,000 per month without a withdrawal, so my amount next year will be €20,090.75. For this exercise lets assume interest rates will remain unchanged. Am I right in saying the interest on the €20,090.75 will be calculated @ 5.40% (4.50%+20% of 4.50%)? Is Mugsgame saying €20090.75 calculated @ 4.50% and then 20% of that interest is the bonus? Would both work out the same? Again apologies if I sound confused but i intend going through the 5 years with the maximum amount so would like to know how interest calculated.