Yeah LC, no-one tells you that at Cityjet...
You do pay to the Irish via PAYE (ie direct from your salary).
This is very strange since LCY based pilots/cabin crew are NOT resident in Eire, most are permanently resident in the UK.. hence the base there.
If you are resident in the UK you are liable for UK tax, simple as that. So you must sort out your tax affairs in the UK.
Ryanair pilots based in the UK are going through the same thing with UK taxman.
Much more to tell, but am reluctant to do so online, drop me a PM.
B.
or you could "relax", bury your head in the sand....and hope everything is OK.