if you have an age related allowance of 15% and pay say, €500 into a pension you obtain tax relief of 15% of €1525 or €228.75 which represents an effective rate of tax relief of 45.75%
I don't understand this at all and don't get where €1525 came from. The age related allowance relates to how much of your income you can put in the pension not the relief on it right? So the relief would be either 40% or 20% (and 20% seems more likely as early in career salary would quite likely not result in paying 40% tax). So I thought the tax rate would either 20% or 40% not 45.75% - what am I not understanding?