Living in UK, working for Irish company but paid by UK payroll - Tax impact

Hi, I live and remotely work in the UK for an irish company. Im paid by the UK parent company (seconded to the irish company). total days in Ireland is 20 - 30 /year. do I need ot do a self assessment and if so, what are the tax implications. Note, my company is managing this on my behalf but I've not been given clarity on the rationals so want to make sure I understand. Thanks

Hi chrpg,
As long as the work carried out in Ireland is paid by your UK employer, then there is no need to complete a Self Assessment tax return for this reason. This income will be included in your P60 and have UK tax deducted.
If the Irish company pay your salary for the days in Ireland, then yes, a Self Assessment tax return will be required.
This is so that you can declare your overseas employment income.
Thank you