Thank you for your replies.
I'm still quite confused. Is the only relevant section in the form 12 question 66?
For example, if as part of the ESPP i purchased 1000 shares with a FMV of €10 at a 15% discount. I paid income tax, prsi and usc on the difference between the purchase price and FMV using the RTSO1 form.
I then sold the shares on the same day they were purchased for €11 so my capital gains would be €1000 which is below the threshold since I've had no other capital gains in the year.
How do I capture all this information in the form 12? Am I required to fill out any other forms?
Thanks again.