Residence uses both a one-year and a two-year day test
An individual is Irish resident when present for at least 183 days in a tax year, or at least 280 days across that year and the preceding year. A person present for 30 days or fewer in the current year is not resident under the two-year test. Presence for any part of a day generally counts. These rules make the preceding year relevant even where the person plans fewer than 183 days in the current year.
Prepare the travel schedule across both years before deciding an arrival or departure date. Immigration permission is separate: lawful residence can exist without tax residence, and tax residence can arise without a particular investor or retirement permission. Dual residence requires the applicable treaty analysis. Any arrival/departure split-year treatment should be checked for the relevant income category, rather than assumed to divide all investment income and gains at the moving date.
Ordinary residence and domicile change the result
After three consecutive Irish-resident tax years, ordinary residence begins from the start of the fourth. It generally continues for three tax years after departure. Revenue identifies exclusions for a trade or profession carried on wholly abroad, employment duties performed wholly abroad, and certain foreign income not exceeding €3,810; where that foreign-income threshold is exceeded, the whole relevant amount may be taxable.
Domicile is a separate legal concept concerned with a permanent home and intention, not a nationality label or a short-term residence choice. For a person who is not Irish domiciled, remittance-basis treatment can be relevant to qualifying foreign income and gains, but the category, source and actual remittance matter. Work performed in Ireland does not become foreign income because it is paid overseas. Maintain account and transaction records capable of distinguishing capital, income and gains before funds are brought to Ireland.
Corporate residence and CFC rules examine different facts
An Irish-incorporated company is generally Irish tax resident unless a tax treaty treats it as resident elsewhere. A foreign-incorporated company can be resident through central management and control in Ireland. Revenue’s analysis considers where policy, investment decisions and major contracts are determined, alongside the broader management facts. A founder moving to Ireland should assess the company before continuing to direct it from an Irish home.
Ireland’s CFC rules are a corporate attribution regime. They target relevant undistributed income arising from non-genuine arrangements linked to Irish significant people functions or key entrepreneurial risk-taking functions. That differs from saying every foreign subsidiary’s profits are automatically taxed because the foreign rate is low. Identify who owns assets, who controls risk and where the relevant people work. Company residence, CFC attribution, permanent establishment and transfer pricing should each be documented rather than collapsed into a single “offshore company” conclusion.
A useful model follows the income and the ownership chain
Before arrival, list personally held shares, funds, pensions, property and trusts separately from business assets. Record costs, unrealised gains, expected distributions and proposed remittances. The treatment of an investment fund should not be inferred from the treatment of an ordinary company share. For an entrepreneur, distinguish salary for Irish work, dividends, trading profits and a later disposal of the company.
The residence day count is only the first layer. Add ordinary residence, domicile, income classification, remittance tracing and any source-country taxes. Build a company decision map where the owner will retain overseas entities. Finally, model the departure year and the three-year ordinary-residence continuation, not only the first year in Ireland. This produces a realistic comparison between retaining a foreign business, changing its actual operations and relocating the owner, rather than relying on a generic headline tax rate.
Sources & research notes5 references
Sources supporting this guide. Research draft awaiting editorial review.