If you become tax resident in Portugal, ie live here more than 183 days per annum, you can pay zero tax for 10 years, if you source your income from UK company you have shares in via Dividends. Not sure if Ireland is the same, but probably is, assuming they have a double tax treaty with Portugal and no withholding tax on dividends. I moved to Cascais nr Lisbon last summer because of Brexit. Wonderful climate food beaches city, great infrastructure, , airport roads etc, cheap 200MBS Fibre, safe with v low crime rate, friendly English speaking locals. Loads of expats moving here because of this tax, property market is on fire. A few negtives, no Amazon, shops expensive for Electrical goods Furniture type items. VAT 23%. Terrible dangerous incompetent drivers, many crapy little dangerous cars because car tax is insane, shame becuase they have great motorways. Bureaucracy not as bad as expected quite easy to register with authorities, I paid our Estate Agent who found our house to help, she was brilliant, better than the lawyer. Services like law and accountancy v cheap here. €500k in property investment (home or several apartments) gets you a golden visa so insurance for us, if UK crahes out of EU without a deal. Also private medical insurance remarkably cheap full best cover including dental for famaly of 4 well under €200 per month. Electricity Gas v expensive though pool costs a lot to heat.