Posted: Tue Feb 20, 2024 10:40am
I assume this is a slightly leading question around whether you should be paying 19% tax with allowances on your rental income or 24% tax with no allowances (based on whether you classify as an EU/non EU individual given your passport situation).
Firstly, I'll caveat this with I do not know for certain however I think the determining factor on the tax rate is residency (it is after all called a non-resident tax rather than a non-citizen tax).
So, if you are resident in the UK you are a non EU resident, I think you should be paying 24% despite having an Irish passport - the tax rate been determined by your residency position rather than your passport position (Irish).
Hopefully someone will come along who actually knows for certain!
Edit - this position seems to be supported by some of the comments (by Costa Luz employees) in the Costa Luz article link posted above)