I am not a Pilot - nor Accountant.
Certainly the rules a few years ago was like this:
If you are a UK resident on an Irish payroll working in Ireland then you pay tax and deductions to the Irish taxman just like an Irish Resident employee. You should declare the income on your UK tax return. The UK tax authorities then assess the income under UK tax rules.
If you are due to pay more tax under UK rules than you have already paid the Irish system then you have to pay the difference to UK taxman.
If you are assessed with a lower tax bill in the UK than you have paid to Irish taxman - NO refund.
Recommend you get professional advice particularly if you are missing paperwork - try yellow pages and look for any accountant in Newry or L'Derry
Last edited by Big-Flame-Out; 28th Jun 2007 at 22:47.
Reason: edited for accountants' location