Ireland tax residency: 183 days, the 280-day rule, and ordinary residence
Ireland uses a 183-day rule and a two-year cumulative 280-day rule, plus ordinary residence and domicile. How the four interact for inbound residents.
Ireland's tax-residency framework has four moving pieces: residency (day-count based), ordinary residence (a stickier 3-year test), domicile (long-term concept), and the remittance basis available to non-domiciled residents. Each affects what Ireland taxes, Ireland-source only, worldwide, or worldwide-but-with-remittance-relief.
Ireland's residency tests
You are an Irish tax resident if either applies for the calendar year:
- 183-day test: physically present in Ireland for 183 or more days in the tax year.
- 280-day test: physically present for an aggregate of 280 days across the current tax year and the immediately preceding tax year, with at least 31 days in the current year.
The 280-day rule catches frequent Ireland visitors who never spend 183 days in any single year but accumulate Irish presence over consecutive years.
What counts as an Irish day
Pre-2009, a 'day' required presence at midnight. Since 2009, any presence at any point during a calendar day counts as a full day. This brought Ireland in line with most other 183-day-rule jurisdictions and tightened the rule meaningfully.
Ordinary residence
If you've been Irish tax resident for 3 consecutive years, you become 'ordinarily resident.' Ordinary residence persists until you've been non-resident for 3 consecutive years. Ordinary residents face slightly broader Irish tax exposure on certain foreign income and gains.
Domicile and the remittance basis
Domicile in Ireland is the long-term concept of permanent home. Born in Ireland with Irish parents? Likely Irish-domiciled. Born abroad to non-Irish parents and resident in Ireland for 5 years? Likely still non-Irish-domiciled.
Non-domiciled Irish residents can be taxed on the remittance basis: foreign-source income and gains are taxable only when remitted to Ireland. This regime is similar to the UK's old non-dom regime and is one reason Ireland is attractive to inbound Americans, French, and other expats.
Ireland's remittance basis is broader than the UK's post-reform regime. For non-doms with substantial foreign income, this can be a major optimization.
Leaving Ireland
- Reduce day count below 183 in current year and below 280 across two-year window.
- Establish foreign-country residency with a long-term home and ties.
- Track Irish days carefully if you'll have ongoing visits.
- Note: ordinary residence persists for 3 years after departing, so certain Irish tax exposure continues.
Track Irish days correctly
Tax Days tracks the Irish 183-day calendar-year window and the 280-day rolling-2-year window simultaneously. Configure ordinary residence in settings, and the app applies the 3-year buffer logic.
Frequently asked questions
How many days can I spend in Ireland without becoming a tax resident?
Ireland generally treats you as tax resident if you are present for 183 or more days in the tax year, or if you are present for an aggregate of 280 days across the current and immediately preceding tax years with at least 31 days in the current year. To remain non-resident you typically need to stay under both thresholds.
What is Ireland's 280-day rule?
Under the 280-day test, you are generally Irish tax resident if your combined presence across the current tax year and the immediately preceding year reaches 280 days, provided you spent at least 31 days in Ireland in the current year. It is designed to catch frequent visitors who never reach 183 days in any single year but accumulate Irish presence over consecutive years.
What counts as a day in Ireland for tax residency?
Since 2009, presence in Ireland at any point during a calendar day generally counts as a full day. Before 2009 a day required presence at midnight, so the current rule is meaningfully tighter and in line with most other 183-day jurisdictions.
What is ordinary residence in Ireland?
If you have been Irish tax resident for 3 consecutive years, you generally become ordinarily resident, and that status persists until you have been non-resident for 3 consecutive years. Ordinarily resident individuals typically face somewhat broader Irish tax exposure on certain foreign income and gains, even after leaving Ireland.
What is the remittance basis in Ireland?
Non-domiciled Irish residents can generally be taxed on the remittance basis, meaning foreign-source income and gains are taxable only when remitted to Ireland. The regime is similar to the UK's old non-dom rules and is one reason Ireland is attractive to inbound expats with substantial foreign income.