Hi Moneyker,
I was in a similar situation many years ago (over ten years ago) so I don’t know if things have changed or not. I worked for 3 years remotely as a Paye employee (I’m a computer programmer) for a Irish company and was paid in an Irish bank account but was physically living in the south of France renting a studio working from there and only returning to Ireland roughly once a month for meetings etc. Because I was living in France for over 6 months even if I was paid in Ireland, I was deemed to be tax resident in France and should have paid the taxes in France, however since my wage was taxed at the source in Ireland, according to the double-taxation agreement Ireland-France, in France I should only have paid or reclaimed the difference, the “spread” between what I had paid in Ireland and what I should have paid in France. So for example if in Ireland I paid 5 euros tax on my 10 euros Payee wage and for the same job/pay I would pay 6 euros tax in France, I should have paid the French taxman the 1 euro difference. Conversely if in France the tax would have been 4 euros then I could have claimed a reimbursement of 1 euro from the French taxman. I never bothered anything anyway so I left everything as it was, never did any return in France. At a later stage a local accountant in France told me that technically I also had an obligation to declare my Irish wages in France even if they were taxed in Ireland, which I never did, but he told me that these things with foreign employees working remotely were rarely enforced in France. I guess he was right since after 12 years nobody ever chased me for anything and now the statutory limit is over (10 years in France). I cannot answer your question on PRSI
Seamus